PGM.cpp revision 74b308a9368bd8065d316be3ee45ab23ff79cca5
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync/* $Id$ */
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync/** @file
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * PGM - Page Manager and Monitor. (Mixing stuff here, not good?)
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync */
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync/*
506df97a8c78dacfe69bc4d3ee5d3de832d0f19avboxsync * Copyright (C) 2006-2007 Oracle Corporation
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
6ec4e1827eab6a424d672ef0e5a17b065e52db20vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
6ec4e1827eab6a424d672ef0e5a17b065e52db20vboxsync * available from http://www.virtualbox.org. This file is free software;
6ec4e1827eab6a424d672ef0e5a17b065e52db20vboxsync * you can redistribute it and/or modify it under the terms of the GNU
6ec4e1827eab6a424d672ef0e5a17b065e52db20vboxsync * General Public License (GPL) as published by the Free Software
6ec4e1827eab6a424d672ef0e5a17b065e52db20vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
6ec4e1827eab6a424d672ef0e5a17b065e52db20vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
6ec4e1827eab6a424d672ef0e5a17b065e52db20vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync */
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync
6ec4e1827eab6a424d672ef0e5a17b065e52db20vboxsync
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync/** @page pg_pgm PGM - The Page Manager and Monitor
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * @see grp_pgm,
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * @ref pg_pgm_pool,
43747b1f0bc8302a238fb35e55857a5e9aa1933dvboxsync * @ref pg_pgm_phys.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * @section sec_pgm_modes Paging Modes
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * There are three memory contexts: Host Context (HC), Guest Context (GC)
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * and intermediate context. When talking about paging HC can also be refered to
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * as "host paging", and GC refered to as "shadow paging".
506df97a8c78dacfe69bc4d3ee5d3de832d0f19avboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * We define three basic paging modes: 32-bit, PAE and AMD64. The host paging mode
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * is defined by the host operating system. The mode used in the shadow paging mode
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * depends on the host paging mode and what the mode the guest is currently in. The
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * following relation between the two is defined:
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * @verbatim
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync Host > 32-bit | PAE | AMD64 |
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync Guest | | | |
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync ==v================================
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync 32-bit 32-bit PAE PAE
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync -------|--------|--------|--------|
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync PAE PAE PAE PAE
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync -------|--------|--------|--------|
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync AMD64 AMD64 AMD64 AMD64
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync -------|--------|--------|--------| @endverbatim
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * All configuration except those in the diagonal (upper left) are expected to
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * require special effort from the switcher (i.e. a bit slower).
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * @section sec_pgm_shw The Shadow Memory Context
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * [..]
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * Because of guest context mappings requires PDPT and PML4 entries to allow
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * writing on AMD64, the two upper levels will have fixed flags whatever the
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * guest is thinking of using there. So, when shadowing the PD level we will
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * calculate the effective flags of PD and all the higher levels. In legacy
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * PAE mode this only applies to the PWT and PCD bits (the rest are
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * ignored/reserved/MBZ). We will ignore those bits for the present.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * @section sec_pgm_int The Intermediate Memory Context
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * The world switch goes thru an intermediate memory context which purpose it is
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * to provide different mappings of the switcher code. All guest mappings are also
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * present in this context.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * The switcher code is mapped at the same location as on the host, at an
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * identity mapped location (physical equals virtual address), and at the
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * hypervisor location. The identity mapped location is for when the world
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * switches that involves disabling paging.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * PGM maintain page tables for 32-bit, PAE and AMD64 paging modes. This
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * simplifies switching guest CPU mode and consistency at the cost of more
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * code to do the work. All memory use for those page tables is located below
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * 4GB (this includes page tables for guest context mappings).
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * @subsection subsec_pgm_int_gc Guest Context Mappings
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * During assignment and relocation of a guest context mapping the intermediate
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * memory context is used to verify the new location.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * Guest context mappings are currently restricted to below 4GB, for reasons
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * of simplicity. This may change when we implement AMD64 support.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * @section sec_pgm_misc Misc
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * @subsection subsec_pgm_misc_diff Differences Between Legacy PAE and Long Mode PAE
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * The differences between legacy PAE and long mode PAE are:
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * -# PDPE bits 1, 2, 5 and 6 are defined differently. In leagcy mode they are
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * all marked down as must-be-zero, while in long mode 1, 2 and 5 have the
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * usual meanings while 6 is ignored (AMD). This means that upon switching to
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * legacy PAE mode we'll have to clear these bits and when going to long mode
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * they must be set. This applies to both intermediate and shadow contexts,
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * however we don't need to do it for the intermediate one since we're
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * executing with CR0.WP at that time.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * -# CR3 allows a 32-byte aligned address in legacy mode, while in long mode
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * a page aligned one is required.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * @section sec_pgm_handlers Access Handlers
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * Placeholder.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * @subsection sec_pgm_handlers_virt Virtual Access Handlers
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * Placeholder.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * @subsection sec_pgm_handlers_virt Virtual Access Handlers
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * We currently implement three types of virtual access handlers: ALL, WRITE
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * and HYPERVISOR (WRITE). See PGMVIRTHANDLERTYPE for some more details.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * The HYPERVISOR access handlers is kept in a separate tree since it doesn't apply
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * to physical pages (PGMTREES::HyperVirtHandlers) and only needs to be consulted in
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * a special \#PF case. The ALL and WRITE are in the PGMTREES::VirtHandlers tree, the
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * rest of this section is going to be about these handlers.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * We'll go thru the life cycle of a handler and try make sense of it all, don't know
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * how successfull this is gonna be...
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * 1. A handler is registered thru the PGMR3HandlerVirtualRegister and
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * PGMHandlerVirtualRegisterEx APIs. We check for conflicting virtual handlers
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * and create a new node that is inserted into the AVL tree (range key). Then
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * a full PGM resync is flagged (clear pool, sync cr3, update virtual bit of PGMPAGE).
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * 2. The following PGMSyncCR3/SyncCR3 operation will first make invoke HandlerVirtualUpdate.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * 2a. HandlerVirtualUpdate will will lookup all the pages covered by virtual handlers
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * via the current guest CR3 and update the physical page -> virtual handler
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * translation. Needless to say, this doesn't exactly scale very well. If any changes
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * are detected, it will flag a virtual bit update just like we did on registration.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * PGMPHYS pages with changes will have their virtual handler state reset to NONE.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * 2b. The virtual bit update process will iterate all the pages covered by all the
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * virtual handlers and update the PGMPAGE virtual handler state to the max of all
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * virtual handlers on that page.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * 2c. Back in SyncCR3 we will now flush the entire shadow page cache to make sure
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * we don't miss any alias mappings of the monitored pages.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * 2d. SyncCR3 will then proceed with syncing the CR3 table.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * 3. \#PF(np,read) on a page in the range. This will cause it to be synced
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * read-only and resumed if it's a WRITE handler. If it's an ALL handler we
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * will call the handlers like in the next step. If the physical mapping has
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * changed we will - some time in the future - perform a handler callback
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * (optional) and update the physical -> virtual handler cache.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * 4. \#PF(,write) on a page in the range. This will cause the handler to
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * be invoked.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * 5. The guest invalidates the page and changes the physical backing or
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * unmaps it. This should cause the invalidation callback to be invoked
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * (it might not yet be 100% perfect). Exactly what happens next... is
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * this where we mess up and end up out of sync for a while?
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * 6. The handler is deregistered by the client via PGMHandlerVirtualDeregister.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * We will then set all PGMPAGEs in the physical -> virtual handler cache for
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * this handler to NONE and trigger a full PGM resync (basically the same
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * as int step 1). Which means 2 is executed again.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * @subsubsection sub_sec_pgm_handler_virt_todo TODOs
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * There is a bunch of things that needs to be done to make the virtual handlers
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * work 100% correctly and work more efficiently.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * The first bit hasn't been implemented yet because it's going to slow the
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * whole mess down even more, and besides it seems to be working reliably for
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * our current uses. OTOH, some of the optimizations might end up more or less
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * implementing the missing bits, so we'll see.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * On the optimization side, the first thing to do is to try avoid unnecessary
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * cache flushing. Then try team up with the shadowing code to track changes
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * in mappings by means of access to them (shadow in), updates to shadows pages,
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * invlpg, and shadow PT discarding (perhaps).
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * Some idea that have popped up for optimization for current and new features:
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * - bitmap indicating where there are virtual handlers installed.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * (4KB => 2**20 pages, page 2**12 => covers 32-bit address space 1:1!)
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * - Further optimize this by min/max (needs min/max avl getters).
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * - Shadow page table entry bit (if any left)?
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync */
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync/** @page pg_pgm_phys PGM Physical Guest Memory Management
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * Objectives:
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * - Guest RAM over-commitment using memory ballooning,
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * zero pages and general page sharing.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * - Moving or mirroring a VM onto a different physical machine.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * @subsection subsec_pgmPhys_Definitions Definitions
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * Allocation chunk - A RTR0MemObjAllocPhysNC object and the tracking
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * machinery assoicated with it.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * @subsection subsec_pgmPhys_AllocPage Allocating a page.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * Initially we map *all* guest memory to the (per VM) zero page, which
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * means that none of the read functions will cause pages to be allocated.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * Exception, access bit in page tables that have been shared. This must
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * be handled, but we must also make sure PGMGst*Modify doesn't make
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * unnecessary modifications.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * Allocation points:
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * - PGMPhysSimpleWriteGCPhys and PGMPhysWrite.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * - Replacing a zero page mapping at \#PF.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * - Replacing a shared page mapping at \#PF.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * - ROM registration (currently MMR3RomRegister).
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * - VM restore (pgmR3Load).
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * For the first three it would make sense to keep a few pages handy
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * until we've reached the max memory commitment for the VM.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * For the ROM registration, we know exactly how many pages we need
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * and will request these from ring-0. For restore, we will save
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * the number of non-zero pages in the saved state and allocate
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * them up front. This would allow the ring-0 component to refuse
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * the request if the isn't sufficient memory available for VM use.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * Btw. for both ROM and restore allocations we won't be requiring
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * zeroed pages as they are going to be filled instantly.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * @subsection subsec_pgmPhys_FreePage Freeing a page
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * There are a few points where a page can be freed:
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * - After being replaced by the zero page.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * - After being replaced by a shared page.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * - After being ballooned by the guest additions.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * - At reset.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * - At restore.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * When freeing one or more pages they will be returned to the ring-0
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * component and replaced by the zero page.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * The reasoning for clearing out all the pages on reset is that it will
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * return us to the exact same state as on power on, and may thereby help
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * us reduce the memory load on the system. Further it might have a
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * (temporary) positive influence on memory fragmentation (@see subsec_pgmPhys_Fragmentation).
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * On restore, as mention under the allocation topic, pages should be
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * freed / allocated depending on how many is actually required by the
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * new VM state. The simplest approach is to do like on reset, and free
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * all non-ROM pages and then allocate what we need.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * A measure to prevent some fragmentation, would be to let each allocation
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * chunk have some affinity towards the VM having allocated the most pages
ad27e1d5e48ca41245120c331cc88b50464813cevboxsync * from it. Also, try make sure to allocate from allocation chunks that
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * are almost full. Admittedly, both these measures might work counter to
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * our intentions and its probably not worth putting a lot of effort,
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * cpu time or memory into this.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * @subsection subsec_pgmPhys_SharePage Sharing a page
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * The basic idea is that there there will be a idle priority kernel
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * thread walking the non-shared VM pages hashing them and looking for
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * pages with the same checksum. If such pages are found, it will compare
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * them byte-by-byte to see if they actually are identical. If found to be
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * identical it will allocate a shared page, copy the content, check that
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * the page didn't change while doing this, and finally request both the
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * VMs to use the shared page instead. If the page is all zeros (special
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * checksum and byte-by-byte check) it will request the VM that owns it
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * to replace it with the zero page.
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync *
a33af978add1a03aab11b2895f441af5cb2a11a6vboxsync * To make this efficient, we will have to make sure not to try share a page
* that will change its contents soon. This part requires the most work.
* A simple idea would be to request the VM to write monitor the page for
* a while to make sure it isn't modified any time soon. Also, it may
* make sense to skip pages that are being write monitored since this
* information is readily available to the thread if it works on the
* per-VM guest memory structures (presently called PGMRAMRANGE).
*
*
* @subsection subsec_pgmPhys_Fragmentation Fragmentation Concerns and Counter Measures
*
* The pages are organized in allocation chunks in ring-0, this is a necessity
* if we wish to have an OS agnostic approach to this whole thing. (On Linux we
* could easily work on a page-by-page basis if we liked. Whether this is possible
* or efficient on NT I don't quite know.) Fragmentation within these chunks may
* become a problem as part of the idea here is that we wish to return memory to
* the host system.
*
* For instance, starting two VMs at the same time, they will both allocate the
* guest memory on-demand and if permitted their page allocations will be
* intermixed. Shut down one of the two VMs and it will be difficult to return
* any memory to the host system because the page allocation for the two VMs are
* mixed up in the same allocation chunks.
*
* To further complicate matters, when pages are freed because they have been
* ballooned or become shared/zero the whole idea is that the page is supposed
* to be reused by another VM or returned to the host system. This will cause
* allocation chunks to contain pages belonging to different VMs and prevent
* returning memory to the host when one of those VM shuts down.
*
* The only way to really deal with this problem is to move pages. This can
* either be done at VM shutdown and or by the idle priority worker thread
* that will be responsible for finding sharable/zero pages. The mechanisms
* involved for coercing a VM to move a page (or to do it for it) will be
* the same as when telling it to share/zero a page.
*
*
* @subsection subsec_pgmPhys_Tracking Tracking Structures And Their Cost
*
* There's a difficult balance between keeping the per-page tracking structures
* (global and guest page) easy to use and keeping them from eating too much
* memory. We have limited virtual memory resources available when operating in
* 32-bit kernel space (on 64-bit there'll it's quite a different story). The
* tracking structures will be attemted designed such that we can deal with up
* to 32GB of memory on a 32-bit system and essentially unlimited on 64-bit ones.
*
*
* @subsubsection subsubsec_pgmPhys_Tracking_Kernel Kernel Space
*
* @see pg_GMM
*
* @subsubsection subsubsec_pgmPhys_Tracking_PerVM Per-VM
*
* Fixed info is the physical address of the page (HCPhys) and the page id
* (described above). Theoretically we'll need 48(-12) bits for the HCPhys part.
* Today we've restricting ourselves to 40(-12) bits because this is the current
* restrictions of all AMD64 implementations (I think Barcelona will up this
* to 48(-12) bits, not that it really matters) and I needed the bits for
* tracking mappings of a page. 48-12 = 36. That leaves 28 bits, which means a
* decent range for the page id: 2^(28+12) = 1024TB.
*
* In additions to these, we'll have to keep maintaining the page flags as we
* currently do. Although it wouldn't harm to optimize these quite a bit, like
* for instance the ROM shouldn't depend on having a write handler installed
* in order for it to become read-only. A RO/RW bit should be considered so
* that the page syncing code doesn't have to mess about checking multiple
* flag combinations (ROM || RW handler || write monitored) in order to
* figure out how to setup a shadow PTE. But this of course, is second
* priority at present. Current this requires 12 bits, but could probably
* be optimized to ~8.
*
* Then there's the 24 bits used to track which shadow page tables are
* currently mapping a page for the purpose of speeding up physical
* access handlers, and thereby the page pool cache. More bit for this
* purpose wouldn't hurt IIRC.
*
* Then there is a new bit in which we need to record what kind of page
* this is, shared, zero, normal or write-monitored-normal. This'll
* require 2 bits. One bit might be needed for indicating whether a
* write monitored page has been written to. And yet another one or
* two for tracking migration status. 3-4 bits total then.
*
* Whatever is left will can be used to record the sharabilitiy of a
* page. The page checksum will not be stored in the per-VM table as
* the idle thread will not be permitted to do modifications to it.
* It will instead have to keep its own working set of potentially
* shareable pages and their check sums and stuff.
*
* For the present we'll keep the current packing of the
* PGMRAMRANGE::aHCPhys to keep the changes simple, only of course,
* we'll have to change it to a struct with a total of 128-bits at
* our disposal.
*
* The initial layout will be like this:
* @verbatim
RTHCPHYS HCPhys; The current stuff.
63:40 Current shadow PT tracking stuff.
39:12 The physical page frame number.
11:0 The current flags.
uint32_t u28PageId : 28; The page id.
uint32_t u2State : 2; The page state { zero, shared, normal, write monitored }.
uint32_t fWrittenTo : 1; Whether a write monitored page was written to.
uint32_t u1Reserved : 1; Reserved for later.
uint32_t u32Reserved; Reserved for later, mostly sharing stats.
@endverbatim
*
* The final layout will be something like this:
* @verbatim
RTHCPHYS HCPhys; The current stuff.
63:48 High page id (12+).
47:12 The physical page frame number.
11:0 Low page id.
uint32_t fReadOnly : 1; Whether it's readonly page (rom or monitored in some way).
uint32_t u3Type : 3; The page type {RESERVED, MMIO, MMIO2, ROM, shadowed ROM, RAM}.
uint32_t u2PhysMon : 2; Physical access handler type {none, read, write, all}.
uint32_t u2VirtMon : 2; Virtual access handler type {none, read, write, all}..
uint32_t u2State : 2; The page state { zero, shared, normal, write monitored }.
uint32_t fWrittenTo : 1; Whether a write monitored page was written to.
uint32_t u20Reserved : 20; Reserved for later, mostly sharing stats.
uint32_t u32Tracking; The shadow PT tracking stuff, roughly.
@endverbatim
*
* Cost wise, this means we'll double the cost for guest memory. There isn't anyway
* around that I'm afraid. It means that the cost of dealing out 32GB of memory
* to one or more VMs is: (32GB >> PAGE_SHIFT) * 16 bytes, or 128MBs. Or another
* example, the VM heap cost when assigning 1GB to a VM will be: 4MB.
*
* A couple of cost examples for the total cost per-VM + kernel.
* 32-bit Windows and 32-bit linux:
* 1GB guest ram, 256K pages: 4MB + 2MB(+) = 6MB
* 4GB guest ram, 1M pages: 16MB + 8MB(+) = 24MB
* 32GB guest ram, 8M pages: 128MB + 64MB(+) = 192MB
* 64-bit Windows and 64-bit linux:
* 1GB guest ram, 256K pages: 4MB + 3MB(+) = 7MB
* 4GB guest ram, 1M pages: 16MB + 12MB(+) = 28MB
* 32GB guest ram, 8M pages: 128MB + 96MB(+) = 224MB
*
* UPDATE - 2007-09-27:
* Will need a ballooned flag/state too because we cannot
* trust the guest 100% and reporting the same page as ballooned more
* than once will put the GMM off balance.
*
*
* @subsection subsec_pgmPhys_Serializing Serializing Access
*
* Initially, we'll try a simple scheme:
*
* - The per-VM RAM tracking structures (PGMRAMRANGE) is only modified
* by the EMT thread of that VM while in the pgm critsect.
* - Other threads in the VM process that needs to make reliable use of
* the per-VM RAM tracking structures will enter the critsect.
* - No process external thread or kernel thread will ever try enter
* the pgm critical section, as that just won't work.
* - The idle thread (and similar threads) doesn't not need 100% reliable
* data when performing it tasks as the EMT thread will be the one to
* do the actual changes later anyway. So, as long as it only accesses
* the main ram range, it can do so by somehow preventing the VM from
* being destroyed while it works on it...
*
* - The over-commitment management, including the allocating/freeing
* chunks, is serialized by a ring-0 mutex lock (a fast one since the
* more mundane mutex implementation is broken on Linux).
* - A separeate mutex is protecting the set of allocation chunks so
* that pages can be shared or/and freed up while some other VM is
* allocating more chunks. This mutex can be take from under the other
* one, but not the otherway around.
*
*
* @subsection subsec_pgmPhys_Request VM Request interface
*
* When in ring-0 it will become necessary to send requests to a VM so it can
* for instance move a page while defragmenting during VM destroy. The idle
* thread will make use of this interface to request VMs to setup shared
* pages and to perform write monitoring of pages.
*
* I would propose an interface similar to the current VMReq interface, similar
* in that it doesn't require locking and that the one sending the request may
* wait for completion if it wishes to. This shouldn't be very difficult to
* realize.
*
* The requests themselves are also pretty simple. They are basically:
* -# Check that some precondition is still true.
* -# Do the update.
* -# Update all shadow page tables involved with the page.
*
* The 3rd step is identical to what we're already doing when updating a
* physical handler, see pgmHandlerPhysicalSetRamFlagsAndFlushShadowPTs.
*
*
*
* @section sec_pgmPhys_MappingCaches Mapping Caches
*
* In order to be able to map in and out memory and to be able to support
* guest with more RAM than we've got virtual address space, we'll employing
* a mapping cache. There is already a tiny one for GC (see PGMGCDynMapGCPageEx)
* and we'll create a similar one for ring-0 unless we decide to setup a dedicate
* memory context for the HWACCM execution.
*
*
* @subsection subsec_pgmPhys_MappingCaches_R3 Ring-3
*
* We've considered implementing the ring-3 mapping cache page based but found
* that this was bother some when one had to take into account TLBs+SMP and
* portability (missing the necessary APIs on several platforms). There were
* also some performance concerns with this approach which hadn't quite been
* worked out.
*
* Instead, we'll be mapping allocation chunks into the VM process. This simplifies
* matters greatly quite a bit since we don't need to invent any new ring-0 stuff,
* only some minor RTR0MEMOBJ mapping stuff. The main concern here is that mapping
* compared to the previous idea is that mapping or unmapping a 1MB chunk is more
* costly than a single page, although how much more costly is uncertain. We'll
* try address this by using a very big cache, preferably bigger than the actual
* VM RAM size if possible. The current VM RAM sizes should give some idea for
* 32-bit boxes, while on 64-bit we can probably get away with employing an
* unlimited cache.
*
* The cache have to parts, as already indicated, the ring-3 side and the
* ring-0 side.
*
* The ring-0 will be tied to the page allocator since it will operate on the
* memory objects it contains. It will therefore require the first ring-0 mutex
* discussed in @ref subsec_pgmPhys_Serializing. We
* some double house keeping wrt to who has mapped what I think, since both
* VMMR0.r0 and RTR0MemObj will keep track of mapping relataions
*
* The ring-3 part will be protected by the pgm critsect. For simplicity, we'll
* require anyone that desires to do changes to the mapping cache to do that
* from within this critsect. Alternatively, we could employ a separate critsect
* for serializing changes to the mapping cache as this would reduce potential
* contention with other threads accessing mappings unrelated to the changes
* that are in process. We can see about this later, contention will show
* up in the statistics anyway, so it'll be simple to tell.
*
* The organization of the ring-3 part will be very much like how the allocation
* chunks are organized in ring-0, that is in an AVL tree by chunk id. To avoid
* having to walk the tree all the time, we'll have a couple of lookaside entries
* like in we do for I/O ports and MMIO in IOM.
*
* The simplified flow of a PGMPhysRead/Write function:
* -# Enter the PGM critsect.
* -# Lookup GCPhys in the ram ranges and get the Page ID.
* -# Calc the Allocation Chunk ID from the Page ID.
* -# Check the lookaside entries and then the AVL tree for the Chunk ID.
* If not found in cache:
* -# Call ring-0 and request it to be mapped and supply
* a chunk to be unmapped if the cache is maxed out already.
* -# Insert the new mapping into the AVL tree (id + R3 address).
* -# Update the relevant lookaside entry and return the mapping address.
* -# Do the read/write according to monitoring flags and everything.
* -# Leave the critsect.
*
*
* @section sec_pgmPhys_Fallback Fallback
*
* Current all the "second tier" hosts will not support the RTR0MemObjAllocPhysNC
* API and thus require a fallback.
*
* So, when RTR0MemObjAllocPhysNC returns VERR_NOT_SUPPORTED the page allocator
* will return to the ring-3 caller (and later ring-0) and asking it to seed
* the page allocator with some fresh pages (VERR_GMM_SEED_ME). Ring-3 will
* then perform an SUPR3PageAlloc(cbChunk >> PAGE_SHIFT) call and make a
* "SeededAllocPages" call to ring-0.
*
* The first time ring-0 sees the VERR_NOT_SUPPORTED failure it will disable
* all page sharing (zero page detection will continue). It will also force
* all allocations to come from the VM which seeded the page. Both these
* measures are taken to make sure that there will never be any need for
* mapping anything into ring-3 - everything will be mapped already.
*
* Whether we'll continue to use the current MM locked memory management
* for this I don't quite know (I'd prefer not to and just ditch that all
* togther), we'll see what's simplest to do.
*
*
*
* @section sec_pgmPhys_Changes Changes
*
* Breakdown of the changes involved?
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#define LOG_GROUP LOG_GROUP_PGM
#include <VBox/dbgf.h>
#include <VBox/pgm.h>
#include <VBox/cpum.h>
#include <VBox/iom.h>
#include <VBox/sup.h>
#include <VBox/mm.h>
#include <VBox/em.h>
#include <VBox/stam.h>
#include <VBox/rem.h>
#include <VBox/selm.h>
#include <VBox/ssm.h>
#include <VBox/hwaccm.h>
#include "PGMInternal.h"
#include <VBox/vm.h>
#include "PGMInline.h"
#include <VBox/dbg.h>
#include <VBox/param.h>
#include <VBox/err.h>
#include <iprt/asm.h>
#include <iprt/assert.h>
#include <iprt/env.h>
#include <iprt/mem.h>
#include <iprt/file.h>
#include <iprt/string.h>
#include <iprt/thread.h>
/*******************************************************************************
* Defined Constants And Macros *
*******************************************************************************/
/** Saved state data unit version for 2.5.x and later. */
#define PGM_SAVED_STATE_VERSION 9
/** Saved state data unit version for 2.2.2 and later. */
#define PGM_SAVED_STATE_VERSION_2_2_2 8
/** Saved state data unit version for 2.2.0. */
#define PGM_SAVED_STATE_VERSION_RR_DESC 7
/** Saved state data unit version. */
#define PGM_SAVED_STATE_VERSION_OLD_PHYS_CODE 6
/*******************************************************************************
* Internal Functions *
*******************************************************************************/
static int pgmR3InitPaging(PVM pVM);
static void pgmR3InitStats(PVM pVM);
static DECLCALLBACK(void) pgmR3PhysInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
static DECLCALLBACK(void) pgmR3InfoMode(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
static DECLCALLBACK(void) pgmR3InfoCr3(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
static DECLCALLBACK(int) pgmR3RelocatePhysHandler(PAVLROGCPHYSNODECORE pNode, void *pvUser);
static DECLCALLBACK(int) pgmR3RelocateVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser);
static DECLCALLBACK(int) pgmR3RelocateHyperVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser);
#ifdef VBOX_STRICT
static DECLCALLBACK(void) pgmR3ResetNoMorePhysWritesFlag(PVM pVM, VMSTATE enmState, VMSTATE enmOldState, void *pvUser);
#endif
static int pgmR3ModeDataInit(PVM pVM, bool fResolveGCAndR0);
static void pgmR3ModeDataSwitch(PVM pVM, PVMCPU pVCpu, PGMMODE enmShw, PGMMODE enmGst);
static PGMMODE pgmR3CalcShadowMode(PVM pVM, PGMMODE enmGuestMode, SUPPAGINGMODE enmHostMode, PGMMODE enmShadowMode, VMMSWITCHER *penmSwitcher);
#ifdef VBOX_WITH_DEBUGGER
/** @todo Convert the first two commands to 'info' items. */
static DECLCALLBACK(int) pgmR3CmdRam(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
static DECLCALLBACK(int) pgmR3CmdError(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
static DECLCALLBACK(int) pgmR3CmdSync(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
static DECLCALLBACK(int) pgmR3CmdSyncAlways(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
# ifdef VBOX_STRICT
static DECLCALLBACK(int) pgmR3CmdAssertCR3(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
# endif
# if defined(VBOX_STRICT) && HC_ARCH_BITS == 64
static DECLCALLBACK(int) pgmR3CmdCheckDuplicatePages(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
# endif
static DECLCALLBACK(int) pgmR3CmdPhysToFile(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult);
#endif
/*******************************************************************************
* Global Variables *
*******************************************************************************/
#ifdef VBOX_WITH_DEBUGGER
/** Argument descriptors for '.pgmerror' and '.pgmerroroff'. */
static const DBGCVARDESC g_aPgmErrorArgs[] =
{
/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
{ 0, 1, DBGCVAR_CAT_STRING, 0, "where", "Error injection location." },
};
static const DBGCVARDESC g_aPgmPhysToFileArgs[] =
{
/* cTimesMin, cTimesMax, enmCategory, fFlags, pszName, pszDescription */
{ 1, 1, DBGCVAR_CAT_STRING, 0, "file", "The file name." },
{ 0, 1, DBGCVAR_CAT_STRING, 0, "nozero", "If present, zero pages are skipped." },
};
/** Command descriptors. */
static const DBGCCMD g_aCmds[] =
{
/* pszCmd, cArgsMin, cArgsMax, paArgDesc, cArgDescs, pResultDesc, fFlags, pfnHandler pszSyntax, ....pszDescription */
{ "pgmram", 0, 0, NULL, 0, NULL, 0, pgmR3CmdRam, "", "Display the ram ranges." },
{ "pgmsync", 0, 0, NULL, 0, NULL, 0, pgmR3CmdSync, "", "Sync the CR3 page." },
{ "pgmerror", 0, 1, &g_aPgmErrorArgs[0], 1, NULL, 0, pgmR3CmdError, "", "Enables inject runtime of errors into parts of PGM." },
{ "pgmerroroff", 0, 1, &g_aPgmErrorArgs[0], 1, NULL, 0, pgmR3CmdError, "", "Disables inject runtime errors into parts of PGM." },
#ifdef VBOX_STRICT
{ "pgmassertcr3", 0, 0, NULL, 0, NULL, 0, pgmR3CmdAssertCR3, "", "Check the shadow CR3 mapping." },
#endif
#if defined(VBOX_STRICT) && HC_ARCH_BITS == 64
{ "pgmcheckduppages", 0, 0, NULL, 0, NULL, 0, pgmR3CmdCheckDuplicatePages, "", "Check for duplicate pages in all running VMs." },
#endif
{ "pgmsyncalways", 0, 0, NULL, 0, NULL, 0, pgmR3CmdSyncAlways, "", "Toggle permanent CR3 syncing." },
{ "pgmphystofile", 1, 2, &g_aPgmPhysToFileArgs[0], 2, NULL, 0, pgmR3CmdPhysToFile, "", "Save the physical memory to file." },
};
#endif
/*
* Shadow - 32-bit mode
*/
#define PGM_SHW_TYPE PGM_TYPE_32BIT
#define PGM_SHW_NAME(name) PGM_SHW_NAME_32BIT(name)
#define PGM_SHW_NAME_RC_STR(name) PGM_SHW_NAME_RC_32BIT_STR(name)
#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_32BIT_STR(name)
#include "PGMShw.h"
/* Guest - real mode */
#define PGM_GST_TYPE PGM_TYPE_REAL
#define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_REAL_STR(name)
#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_REAL_STR(name)
#define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_REAL(name)
#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_32BIT_REAL_STR(name)
#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_32BIT_REAL_STR(name)
#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_PHYS
#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_32BIT_PD_PHYS
#include "PGMBth.h"
#include "PGMGstDefs.h"
#include "PGMGst.h"
#undef BTH_PGMPOOLKIND_PT_FOR_PT
#undef BTH_PGMPOOLKIND_ROOT
#undef PGM_BTH_NAME
#undef PGM_BTH_NAME_RC_STR
#undef PGM_BTH_NAME_R0_STR
#undef PGM_GST_TYPE
#undef PGM_GST_NAME
#undef PGM_GST_NAME_RC_STR
#undef PGM_GST_NAME_R0_STR
/* Guest - protected mode */
#define PGM_GST_TYPE PGM_TYPE_PROT
#define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PROT_STR(name)
#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PROT_STR(name)
#define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_PROT(name)
#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_32BIT_PROT_STR(name)
#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_32BIT_PROT_STR(name)
#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_PHYS
#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_32BIT_PD_PHYS
#include "PGMBth.h"
#include "PGMGstDefs.h"
#include "PGMGst.h"
#undef BTH_PGMPOOLKIND_PT_FOR_PT
#undef BTH_PGMPOOLKIND_ROOT
#undef PGM_BTH_NAME
#undef PGM_BTH_NAME_RC_STR
#undef PGM_BTH_NAME_R0_STR
#undef PGM_GST_TYPE
#undef PGM_GST_NAME
#undef PGM_GST_NAME_RC_STR
#undef PGM_GST_NAME_R0_STR
/* Guest - 32-bit mode */
#define PGM_GST_TYPE PGM_TYPE_32BIT
#define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_32BIT_STR(name)
#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_32BIT_STR(name)
#define PGM_BTH_NAME(name) PGM_BTH_NAME_32BIT_32BIT(name)
#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_32BIT_32BIT_STR(name)
#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_32BIT_32BIT_STR(name)
#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_32BIT_PT_FOR_32BIT_PT
#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_32BIT_PT_FOR_32BIT_4MB
#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_32BIT_PD
#include "PGMBth.h"
#include "PGMGstDefs.h"
#include "PGMGst.h"
#undef BTH_PGMPOOLKIND_PT_FOR_BIG
#undef BTH_PGMPOOLKIND_PT_FOR_PT
#undef BTH_PGMPOOLKIND_ROOT
#undef PGM_BTH_NAME
#undef PGM_BTH_NAME_RC_STR
#undef PGM_BTH_NAME_R0_STR
#undef PGM_GST_TYPE
#undef PGM_GST_NAME
#undef PGM_GST_NAME_RC_STR
#undef PGM_GST_NAME_R0_STR
#undef PGM_SHW_TYPE
#undef PGM_SHW_NAME
#undef PGM_SHW_NAME_RC_STR
#undef PGM_SHW_NAME_R0_STR
/*
* Shadow - PAE mode
*/
#define PGM_SHW_TYPE PGM_TYPE_PAE
#define PGM_SHW_NAME(name) PGM_SHW_NAME_PAE(name)
#define PGM_SHW_NAME_RC_STR(name) PGM_SHW_NAME_RC_PAE_STR(name)
#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_PAE_STR(name)
#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_REAL(name)
#include "PGMShw.h"
/* Guest - real mode */
#define PGM_GST_TYPE PGM_TYPE_REAL
#define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_REAL_STR(name)
#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_REAL_STR(name)
#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_REAL(name)
#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_PAE_REAL_STR(name)
#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_REAL_STR(name)
#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_PAE_PDPT_PHYS
#include "PGMGstDefs.h"
#include "PGMBth.h"
#undef BTH_PGMPOOLKIND_PT_FOR_PT
#undef BTH_PGMPOOLKIND_ROOT
#undef PGM_BTH_NAME
#undef PGM_BTH_NAME_RC_STR
#undef PGM_BTH_NAME_R0_STR
#undef PGM_GST_TYPE
#undef PGM_GST_NAME
#undef PGM_GST_NAME_RC_STR
#undef PGM_GST_NAME_R0_STR
/* Guest - protected mode */
#define PGM_GST_TYPE PGM_TYPE_PROT
#define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PROT_STR(name)
#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PROT_STR(name)
#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_PROT(name)
#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_PAE_PROT_STR(name)
#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_PROT_STR(name)
#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_PAE_PDPT_PHYS
#include "PGMGstDefs.h"
#include "PGMBth.h"
#undef BTH_PGMPOOLKIND_PT_FOR_PT
#undef BTH_PGMPOOLKIND_ROOT
#undef PGM_BTH_NAME
#undef PGM_BTH_NAME_RC_STR
#undef PGM_BTH_NAME_R0_STR
#undef PGM_GST_TYPE
#undef PGM_GST_NAME
#undef PGM_GST_NAME_RC_STR
#undef PGM_GST_NAME_R0_STR
/* Guest - 32-bit mode */
#define PGM_GST_TYPE PGM_TYPE_32BIT
#define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_32BIT_STR(name)
#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_32BIT_STR(name)
#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_32BIT(name)
#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_PAE_32BIT_STR(name)
#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_32BIT_STR(name)
#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_32BIT_PT
#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB
#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_PAE_PDPT_FOR_32BIT
#include "PGMGstDefs.h"
#include "PGMBth.h"
#undef BTH_PGMPOOLKIND_PT_FOR_BIG
#undef BTH_PGMPOOLKIND_PT_FOR_PT
#undef BTH_PGMPOOLKIND_ROOT
#undef PGM_BTH_NAME
#undef PGM_BTH_NAME_RC_STR
#undef PGM_BTH_NAME_R0_STR
#undef PGM_GST_TYPE
#undef PGM_GST_NAME
#undef PGM_GST_NAME_RC_STR
#undef PGM_GST_NAME_R0_STR
/* Guest - PAE mode */
#define PGM_GST_TYPE PGM_TYPE_PAE
#define PGM_GST_NAME(name) PGM_GST_NAME_PAE(name)
#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PAE_STR(name)
#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PAE_STR(name)
#define PGM_BTH_NAME(name) PGM_BTH_NAME_PAE_PAE(name)
#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_PAE_PAE_STR(name)
#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_PAE_PAE_STR(name)
#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
#define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_PAE_PDPT
#include "PGMBth.h"
#include "PGMGstDefs.h"
#include "PGMGst.h"
#undef BTH_PGMPOOLKIND_PT_FOR_BIG
#undef BTH_PGMPOOLKIND_PT_FOR_PT
#undef BTH_PGMPOOLKIND_ROOT
#undef PGM_BTH_NAME
#undef PGM_BTH_NAME_RC_STR
#undef PGM_BTH_NAME_R0_STR
#undef PGM_GST_TYPE
#undef PGM_GST_NAME
#undef PGM_GST_NAME_RC_STR
#undef PGM_GST_NAME_R0_STR
#undef PGM_SHW_TYPE
#undef PGM_SHW_NAME
#undef PGM_SHW_NAME_RC_STR
#undef PGM_SHW_NAME_R0_STR
/*
* Shadow - AMD64 mode
*/
#define PGM_SHW_TYPE PGM_TYPE_AMD64
#define PGM_SHW_NAME(name) PGM_SHW_NAME_AMD64(name)
#define PGM_SHW_NAME_RC_STR(name) PGM_SHW_NAME_RC_AMD64_STR(name)
#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_AMD64_STR(name)
#include "PGMShw.h"
#ifdef VBOX_WITH_64_BITS_GUESTS
/* Guest - AMD64 mode */
# define PGM_GST_TYPE PGM_TYPE_AMD64
# define PGM_GST_NAME(name) PGM_GST_NAME_AMD64(name)
# define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_AMD64_STR(name)
# define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_AMD64_STR(name)
# define PGM_BTH_NAME(name) PGM_BTH_NAME_AMD64_AMD64(name)
# define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_AMD64_AMD64_STR(name)
# define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_AMD64_AMD64_STR(name)
# define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
# define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
# define BTH_PGMPOOLKIND_ROOT PGMPOOLKIND_64BIT_PML4
# include "PGMBth.h"
# include "PGMGstDefs.h"
# include "PGMGst.h"
# undef BTH_PGMPOOLKIND_PT_FOR_BIG
# undef BTH_PGMPOOLKIND_PT_FOR_PT
# undef BTH_PGMPOOLKIND_ROOT
# undef PGM_BTH_NAME
# undef PGM_BTH_NAME_RC_STR
# undef PGM_BTH_NAME_R0_STR
# undef PGM_GST_TYPE
# undef PGM_GST_NAME
# undef PGM_GST_NAME_RC_STR
# undef PGM_GST_NAME_R0_STR
#endif /* VBOX_WITH_64_BITS_GUESTS */
#undef PGM_SHW_TYPE
#undef PGM_SHW_NAME
#undef PGM_SHW_NAME_RC_STR
#undef PGM_SHW_NAME_R0_STR
/*
* Shadow - Nested paging mode
*/
#define PGM_SHW_TYPE PGM_TYPE_NESTED
#define PGM_SHW_NAME(name) PGM_SHW_NAME_NESTED(name)
#define PGM_SHW_NAME_RC_STR(name) PGM_SHW_NAME_RC_NESTED_STR(name)
#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_NESTED_STR(name)
#include "PGMShw.h"
/* Guest - real mode */
#define PGM_GST_TYPE PGM_TYPE_REAL
#define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_REAL_STR(name)
#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_REAL_STR(name)
#define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_REAL(name)
#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_NESTED_REAL_STR(name)
#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_NESTED_REAL_STR(name)
#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
#include "PGMGstDefs.h"
#include "PGMBth.h"
#undef BTH_PGMPOOLKIND_PT_FOR_PT
#undef PGM_BTH_NAME
#undef PGM_BTH_NAME_RC_STR
#undef PGM_BTH_NAME_R0_STR
#undef PGM_GST_TYPE
#undef PGM_GST_NAME
#undef PGM_GST_NAME_RC_STR
#undef PGM_GST_NAME_R0_STR
/* Guest - protected mode */
#define PGM_GST_TYPE PGM_TYPE_PROT
#define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PROT_STR(name)
#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PROT_STR(name)
#define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_PROT(name)
#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_NESTED_PROT_STR(name)
#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_NESTED_PROT_STR(name)
#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
#include "PGMGstDefs.h"
#include "PGMBth.h"
#undef BTH_PGMPOOLKIND_PT_FOR_PT
#undef PGM_BTH_NAME
#undef PGM_BTH_NAME_RC_STR
#undef PGM_BTH_NAME_R0_STR
#undef PGM_GST_TYPE
#undef PGM_GST_NAME
#undef PGM_GST_NAME_RC_STR
#undef PGM_GST_NAME_R0_STR
/* Guest - 32-bit mode */
#define PGM_GST_TYPE PGM_TYPE_32BIT
#define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_32BIT_STR(name)
#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_32BIT_STR(name)
#define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_32BIT(name)
#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_NESTED_32BIT_STR(name)
#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_NESTED_32BIT_STR(name)
#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_32BIT_PT
#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB
#include "PGMGstDefs.h"
#include "PGMBth.h"
#undef BTH_PGMPOOLKIND_PT_FOR_BIG
#undef BTH_PGMPOOLKIND_PT_FOR_PT
#undef PGM_BTH_NAME
#undef PGM_BTH_NAME_RC_STR
#undef PGM_BTH_NAME_R0_STR
#undef PGM_GST_TYPE
#undef PGM_GST_NAME
#undef PGM_GST_NAME_RC_STR
#undef PGM_GST_NAME_R0_STR
/* Guest - PAE mode */
#define PGM_GST_TYPE PGM_TYPE_PAE
#define PGM_GST_NAME(name) PGM_GST_NAME_PAE(name)
#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PAE_STR(name)
#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PAE_STR(name)
#define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_PAE(name)
#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_NESTED_PAE_STR(name)
#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_NESTED_PAE_STR(name)
#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
#include "PGMGstDefs.h"
#include "PGMBth.h"
#undef BTH_PGMPOOLKIND_PT_FOR_BIG
#undef BTH_PGMPOOLKIND_PT_FOR_PT
#undef PGM_BTH_NAME
#undef PGM_BTH_NAME_RC_STR
#undef PGM_BTH_NAME_R0_STR
#undef PGM_GST_TYPE
#undef PGM_GST_NAME
#undef PGM_GST_NAME_RC_STR
#undef PGM_GST_NAME_R0_STR
#ifdef VBOX_WITH_64_BITS_GUESTS
/* Guest - AMD64 mode */
# define PGM_GST_TYPE PGM_TYPE_AMD64
# define PGM_GST_NAME(name) PGM_GST_NAME_AMD64(name)
# define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_AMD64_STR(name)
# define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_AMD64_STR(name)
# define PGM_BTH_NAME(name) PGM_BTH_NAME_NESTED_AMD64(name)
# define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_NESTED_AMD64_STR(name)
# define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_NESTED_AMD64_STR(name)
# define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
# define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
# include "PGMGstDefs.h"
# include "PGMBth.h"
# undef BTH_PGMPOOLKIND_PT_FOR_BIG
# undef BTH_PGMPOOLKIND_PT_FOR_PT
# undef PGM_BTH_NAME
# undef PGM_BTH_NAME_RC_STR
# undef PGM_BTH_NAME_R0_STR
# undef PGM_GST_TYPE
# undef PGM_GST_NAME
# undef PGM_GST_NAME_RC_STR
# undef PGM_GST_NAME_R0_STR
#endif /* VBOX_WITH_64_BITS_GUESTS */
#undef PGM_SHW_TYPE
#undef PGM_SHW_NAME
#undef PGM_SHW_NAME_RC_STR
#undef PGM_SHW_NAME_R0_STR
/*
* Shadow - EPT
*/
#define PGM_SHW_TYPE PGM_TYPE_EPT
#define PGM_SHW_NAME(name) PGM_SHW_NAME_EPT(name)
#define PGM_SHW_NAME_RC_STR(name) PGM_SHW_NAME_RC_EPT_STR(name)
#define PGM_SHW_NAME_R0_STR(name) PGM_SHW_NAME_R0_EPT_STR(name)
#include "PGMShw.h"
/* Guest - real mode */
#define PGM_GST_TYPE PGM_TYPE_REAL
#define PGM_GST_NAME(name) PGM_GST_NAME_REAL(name)
#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_REAL_STR(name)
#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_REAL_STR(name)
#define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_REAL(name)
#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_EPT_REAL_STR(name)
#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_EPT_REAL_STR(name)
#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
#include "PGMGstDefs.h"
#include "PGMBth.h"
#undef BTH_PGMPOOLKIND_PT_FOR_PT
#undef PGM_BTH_NAME
#undef PGM_BTH_NAME_RC_STR
#undef PGM_BTH_NAME_R0_STR
#undef PGM_GST_TYPE
#undef PGM_GST_NAME
#undef PGM_GST_NAME_RC_STR
#undef PGM_GST_NAME_R0_STR
/* Guest - protected mode */
#define PGM_GST_TYPE PGM_TYPE_PROT
#define PGM_GST_NAME(name) PGM_GST_NAME_PROT(name)
#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PROT_STR(name)
#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PROT_STR(name)
#define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_PROT(name)
#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_EPT_PROT_STR(name)
#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_EPT_PROT_STR(name)
#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PHYS
#include "PGMGstDefs.h"
#include "PGMBth.h"
#undef BTH_PGMPOOLKIND_PT_FOR_PT
#undef PGM_BTH_NAME
#undef PGM_BTH_NAME_RC_STR
#undef PGM_BTH_NAME_R0_STR
#undef PGM_GST_TYPE
#undef PGM_GST_NAME
#undef PGM_GST_NAME_RC_STR
#undef PGM_GST_NAME_R0_STR
/* Guest - 32-bit mode */
#define PGM_GST_TYPE PGM_TYPE_32BIT
#define PGM_GST_NAME(name) PGM_GST_NAME_32BIT(name)
#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_32BIT_STR(name)
#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_32BIT_STR(name)
#define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_32BIT(name)
#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_EPT_32BIT_STR(name)
#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_EPT_32BIT_STR(name)
#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_32BIT_PT
#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_32BIT_4MB
#include "PGMGstDefs.h"
#include "PGMBth.h"
#undef BTH_PGMPOOLKIND_PT_FOR_BIG
#undef BTH_PGMPOOLKIND_PT_FOR_PT
#undef PGM_BTH_NAME
#undef PGM_BTH_NAME_RC_STR
#undef PGM_BTH_NAME_R0_STR
#undef PGM_GST_TYPE
#undef PGM_GST_NAME
#undef PGM_GST_NAME_RC_STR
#undef PGM_GST_NAME_R0_STR
/* Guest - PAE mode */
#define PGM_GST_TYPE PGM_TYPE_PAE
#define PGM_GST_NAME(name) PGM_GST_NAME_PAE(name)
#define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_PAE_STR(name)
#define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_PAE_STR(name)
#define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_PAE(name)
#define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_EPT_PAE_STR(name)
#define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_EPT_PAE_STR(name)
#define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
#define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
#include "PGMGstDefs.h"
#include "PGMBth.h"
#undef BTH_PGMPOOLKIND_PT_FOR_BIG
#undef BTH_PGMPOOLKIND_PT_FOR_PT
#undef PGM_BTH_NAME
#undef PGM_BTH_NAME_RC_STR
#undef PGM_BTH_NAME_R0_STR
#undef PGM_GST_TYPE
#undef PGM_GST_NAME
#undef PGM_GST_NAME_RC_STR
#undef PGM_GST_NAME_R0_STR
#ifdef VBOX_WITH_64_BITS_GUESTS
/* Guest - AMD64 mode */
# define PGM_GST_TYPE PGM_TYPE_AMD64
# define PGM_GST_NAME(name) PGM_GST_NAME_AMD64(name)
# define PGM_GST_NAME_RC_STR(name) PGM_GST_NAME_RC_AMD64_STR(name)
# define PGM_GST_NAME_R0_STR(name) PGM_GST_NAME_R0_AMD64_STR(name)
# define PGM_BTH_NAME(name) PGM_BTH_NAME_EPT_AMD64(name)
# define PGM_BTH_NAME_RC_STR(name) PGM_BTH_NAME_RC_EPT_AMD64_STR(name)
# define PGM_BTH_NAME_R0_STR(name) PGM_BTH_NAME_R0_EPT_AMD64_STR(name)
# define BTH_PGMPOOLKIND_PT_FOR_PT PGMPOOLKIND_PAE_PT_FOR_PAE_PT
# define BTH_PGMPOOLKIND_PT_FOR_BIG PGMPOOLKIND_PAE_PT_FOR_PAE_2MB
# include "PGMGstDefs.h"
# include "PGMBth.h"
# undef BTH_PGMPOOLKIND_PT_FOR_BIG
# undef BTH_PGMPOOLKIND_PT_FOR_PT
# undef PGM_BTH_NAME
# undef PGM_BTH_NAME_RC_STR
# undef PGM_BTH_NAME_R0_STR
# undef PGM_GST_TYPE
# undef PGM_GST_NAME
# undef PGM_GST_NAME_RC_STR
# undef PGM_GST_NAME_R0_STR
#endif /* VBOX_WITH_64_BITS_GUESTS */
#undef PGM_SHW_TYPE
#undef PGM_SHW_NAME
#undef PGM_SHW_NAME_RC_STR
#undef PGM_SHW_NAME_R0_STR
/**
* Initiates the paging of VM.
*
* @returns VBox status code.
* @param pVM Pointer to VM structure.
*/
VMMR3DECL(int) PGMR3Init(PVM pVM)
{
LogFlow(("PGMR3Init:\n"));
PCFGMNODE pCfgPGM = CFGMR3GetChild(CFGMR3GetRoot(pVM), "/PGM");
int rc;
/*
* Assert alignment and sizes.
*/
AssertCompile(sizeof(pVM->pgm.s) <= sizeof(pVM->pgm.padding));
AssertCompile(sizeof(pVM->aCpus[0].pgm.s) <= sizeof(pVM->aCpus[0].pgm.padding));
AssertCompileMemberAlignment(PGM, CritSect, sizeof(uintptr_t));
/*
* Init the structure.
*/
#ifdef PGM_WITHOUT_MAPPINGS
pVM->pgm.s.fMappingsDisabled = true;
#endif
pVM->pgm.s.offVM = RT_OFFSETOF(VM, pgm.s);
pVM->pgm.s.offVCpuPGM = RT_OFFSETOF(VMCPU, pgm.s);
/* Init the per-CPU part. */
for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
{
PVMCPU pVCpu = &pVM->aCpus[idCpu];
PPGMCPU pPGM = &pVCpu->pgm.s;
pPGM->offVM = (uintptr_t)&pVCpu->pgm.s - (uintptr_t)pVM;
pPGM->offVCpu = RT_OFFSETOF(VMCPU, pgm.s);
pPGM->offPGM = (uintptr_t)&pVCpu->pgm.s - (uintptr_t)&pVM->pgm.s;
pPGM->enmShadowMode = PGMMODE_INVALID;
pPGM->enmGuestMode = PGMMODE_INVALID;
pPGM->GCPhysCR3 = NIL_RTGCPHYS;
pPGM->pGstPaePdptR3 = NULL;
#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
pPGM->pGstPaePdptR0 = NIL_RTR0PTR;
#endif
pPGM->pGstPaePdptRC = NIL_RTRCPTR;
for (unsigned i = 0; i < RT_ELEMENTS(pVCpu->pgm.s.apGstPaePDsR3); i++)
{
pPGM->apGstPaePDsR3[i] = NULL;
#ifndef VBOX_WITH_2X_4GB_ADDR_SPACE
pPGM->apGstPaePDsR0[i] = NIL_RTR0PTR;
#endif
pPGM->apGstPaePDsRC[i] = NIL_RTRCPTR;
pPGM->aGCPhysGstPaePDs[i] = NIL_RTGCPHYS;
pPGM->aGCPhysGstPaePDsMonitored[i] = NIL_RTGCPHYS;
}
pPGM->fA20Enabled = true;
}
pVM->pgm.s.enmHostMode = SUPPAGINGMODE_INVALID;
pVM->pgm.s.GCPhys4MBPSEMask = RT_BIT_64(32) - 1; /* default; checked later */
pVM->pgm.s.GCPtrPrevRamRangeMapping = MM_HYPER_AREA_ADDRESS;
rc = CFGMR3QueryBoolDef(CFGMR3GetRoot(pVM), "RamPreAlloc", &pVM->pgm.s.fRamPreAlloc,
#ifdef VBOX_WITH_PREALLOC_RAM_BY_DEFAULT
true
#else
false
#endif
);
AssertLogRelRCReturn(rc, rc);
#if HC_ARCH_BITS == 64 || 1 /** @todo 4GB/32-bit: remove || 1 later and adjust the limit. */
rc = CFGMR3QueryU32Def(pCfgPGM, "MaxRing3Chunks", &pVM->pgm.s.ChunkR3Map.cMax, UINT32_MAX);
#else
rc = CFGMR3QueryU32Def(pCfgPGM, "MaxRing3Chunks", &pVM->pgm.s.ChunkR3Map.cMax, _1G / GMM_CHUNK_SIZE);
#endif
AssertLogRelRCReturn(rc, rc);
for (uint32_t i = 0; i < RT_ELEMENTS(pVM->pgm.s.ChunkR3Map.Tlb.aEntries); i++)
pVM->pgm.s.ChunkR3Map.Tlb.aEntries[i].idChunk = NIL_GMM_CHUNKID;
/*
* Get the configured RAM size - to estimate saved state size.
*/
uint64_t cbRam;
rc = CFGMR3QueryU64(CFGMR3GetRoot(pVM), "RamSize", &cbRam);
if (rc == VERR_CFGM_VALUE_NOT_FOUND)
cbRam = 0;
else if (RT_SUCCESS(rc))
{
if (cbRam < PAGE_SIZE)
cbRam = 0;
cbRam = RT_ALIGN_64(cbRam, PAGE_SIZE);
}
else
{
AssertMsgFailed(("Configuration error: Failed to query integer \"RamSize\", rc=%Rrc.\n", rc));
return rc;
}
/*
* Register callbacks, string formatters and the saved state data unit.
*/
#ifdef VBOX_STRICT
VMR3AtStateRegister(pVM, pgmR3ResetNoMorePhysWritesFlag, NULL);
#endif
PGMRegisterStringFormatTypes();
rc = pgmR3InitSavedState(pVM, cbRam);
if (RT_FAILURE(rc))
return rc;
/*
* Initialize the PGM critical section and flush the phys TLBs
*/
rc = PDMR3CritSectInit(pVM, &pVM->pgm.s.CritSect, RT_SRC_POS, "PGM");
AssertRCReturn(rc, rc);
PGMR3PhysChunkInvalidateTLB(pVM);
PGMPhysInvalidatePageMapTLB(pVM);
/*
* For the time being we sport a full set of handy pages in addition to the base
* memory to simplify things.
*/
rc = MMR3ReserveHandyPages(pVM, RT_ELEMENTS(pVM->pgm.s.aHandyPages)); /** @todo this should be changed to PGM_HANDY_PAGES_MIN but this needs proper testing... */
AssertRCReturn(rc, rc);
/*
* Trees
*/
rc = MMHyperAlloc(pVM, sizeof(PGMTREES), 0, MM_TAG_PGM, (void **)&pVM->pgm.s.pTreesR3);
if (RT_SUCCESS(rc))
{
pVM->pgm.s.pTreesR0 = MMHyperR3ToR0(pVM, pVM->pgm.s.pTreesR3);
pVM->pgm.s.pTreesRC = MMHyperR3ToRC(pVM, pVM->pgm.s.pTreesR3);
/*
* Alocate the zero page.
*/
rc = MMHyperAlloc(pVM, PAGE_SIZE, PAGE_SIZE, MM_TAG_PGM, &pVM->pgm.s.pvZeroPgR3);
}
if (RT_SUCCESS(rc))
{
pVM->pgm.s.pvZeroPgRC = MMHyperR3ToRC(pVM, pVM->pgm.s.pvZeroPgR3);
pVM->pgm.s.pvZeroPgR0 = MMHyperR3ToR0(pVM, pVM->pgm.s.pvZeroPgR3);
pVM->pgm.s.HCPhysZeroPg = MMR3HyperHCVirt2HCPhys(pVM, pVM->pgm.s.pvZeroPgR3);
AssertRelease(pVM->pgm.s.HCPhysZeroPg != NIL_RTHCPHYS);
/*
* Init the paging.
*/
rc = pgmR3InitPaging(pVM);
}
if (RT_SUCCESS(rc))
{
/*
* Init the page pool.
*/
rc = pgmR3PoolInit(pVM);
}
if (RT_SUCCESS(rc))
{
for (VMCPUID i = 0; i < pVM->cCpus; i++)
{
PVMCPU pVCpu = &pVM->aCpus[i];
rc = PGMR3ChangeMode(pVM, pVCpu, PGMMODE_REAL);
if (RT_FAILURE(rc))
break;
}
}
if (RT_SUCCESS(rc))
{
/*
* Info & statistics
*/
DBGFR3InfoRegisterInternal(pVM, "mode",
"Shows the current paging mode. "
"Recognizes 'all', 'guest', 'shadow' and 'host' as arguments, defaulting to 'all' if nothing's given.",
pgmR3InfoMode);
DBGFR3InfoRegisterInternal(pVM, "pgmcr3",
"Dumps all the entries in the top level paging table. No arguments.",
pgmR3InfoCr3);
DBGFR3InfoRegisterInternal(pVM, "phys",
"Dumps all the physical address ranges. No arguments.",
pgmR3PhysInfo);
DBGFR3InfoRegisterInternal(pVM, "handlers",
"Dumps physical, virtual and hyper virtual handlers. "
"Pass 'phys', 'virt', 'hyper' as argument if only one kind is wanted."
"Add 'nost' if the statistics are unwanted, use together with 'all' or explicit selection.",
pgmR3InfoHandlers);
DBGFR3InfoRegisterInternal(pVM, "mappings",
"Dumps guest mappings.",
pgmR3MapInfo);
pgmR3InitStats(pVM);
#ifdef VBOX_WITH_DEBUGGER
/*
* Debugger commands.
*/
static bool s_fRegisteredCmds = false;
if (!s_fRegisteredCmds)
{
int rc2 = DBGCRegisterCommands(&g_aCmds[0], RT_ELEMENTS(g_aCmds));
if (RT_SUCCESS(rc2))
s_fRegisteredCmds = true;
}
#endif
return VINF_SUCCESS;
}
/* Almost no cleanup necessary, MM frees all memory. */
PDMR3CritSectDelete(&pVM->pgm.s.CritSect);
return rc;
}
/**
* Initializes the per-VCPU PGM.
*
* @returns VBox status code.
* @param pVM The VM to operate on.
*/
VMMR3DECL(int) PGMR3InitCPU(PVM pVM)
{
LogFlow(("PGMR3InitCPU\n"));
return VINF_SUCCESS;
}
/**
* Init paging.
*
* Since we need to check what mode the host is operating in before we can choose
* the right paging functions for the host we have to delay this until R0 has
* been initialized.
*
* @returns VBox status code.
* @param pVM VM handle.
*/
static int pgmR3InitPaging(PVM pVM)
{
/*
* Force a recalculation of modes and switcher so everyone gets notified.
*/
for (VMCPUID i = 0; i < pVM->cCpus; i++)
{
PVMCPU pVCpu = &pVM->aCpus[i];
pVCpu->pgm.s.enmShadowMode = PGMMODE_INVALID;
pVCpu->pgm.s.enmGuestMode = PGMMODE_INVALID;
}
pVM->pgm.s.enmHostMode = SUPPAGINGMODE_INVALID;
/*
* Allocate static mapping space for whatever the cr3 register
* points to and in the case of PAE mode to the 4 PDs.
*/
int rc = MMR3HyperReserve(pVM, PAGE_SIZE * 5, "CR3 mapping", &pVM->pgm.s.GCPtrCR3Mapping);
if (RT_FAILURE(rc))
{
AssertMsgFailed(("Failed to reserve two pages for cr mapping in HMA, rc=%Rrc\n", rc));
return rc;
}
MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
/*
* Allocate pages for the three possible intermediate contexts
* (AMD64, PAE and plain 32-Bit). We maintain all three contexts
* for the sake of simplicity. The AMD64 uses the PAE for the
* lower levels, making the total number of pages 11 (3 + 7 + 1).
*
* We assume that two page tables will be enought for the core code
* mappings (HC virtual and identity).
*/
pVM->pgm.s.pInterPD = (PX86PD)MMR3PageAllocLow(pVM); AssertReturn(pVM->pgm.s.pInterPD, VERR_NO_PAGE_MEMORY);
pVM->pgm.s.apInterPTs[0] = (PX86PT)MMR3PageAllocLow(pVM); AssertReturn(pVM->pgm.s.apInterPTs[0], VERR_NO_PAGE_MEMORY);
pVM->pgm.s.apInterPTs[1] = (PX86PT)MMR3PageAllocLow(pVM); AssertReturn(pVM->pgm.s.apInterPTs[1], VERR_NO_PAGE_MEMORY);
pVM->pgm.s.apInterPaePTs[0] = (PX86PTPAE)MMR3PageAlloc(pVM); AssertReturn(pVM->pgm.s.apInterPaePTs[0], VERR_NO_PAGE_MEMORY);
pVM->pgm.s.apInterPaePTs[1] = (PX86PTPAE)MMR3PageAlloc(pVM); AssertReturn(pVM->pgm.s.apInterPaePTs[1], VERR_NO_PAGE_MEMORY);
pVM->pgm.s.apInterPaePDs[0] = (PX86PDPAE)MMR3PageAlloc(pVM); AssertReturn(pVM->pgm.s.apInterPaePDs[0], VERR_NO_PAGE_MEMORY);
pVM->pgm.s.apInterPaePDs[1] = (PX86PDPAE)MMR3PageAlloc(pVM); AssertReturn(pVM->pgm.s.apInterPaePDs[1], VERR_NO_PAGE_MEMORY);
pVM->pgm.s.apInterPaePDs[2] = (PX86PDPAE)MMR3PageAlloc(pVM); AssertReturn(pVM->pgm.s.apInterPaePDs[2], VERR_NO_PAGE_MEMORY);
pVM->pgm.s.apInterPaePDs[3] = (PX86PDPAE)MMR3PageAlloc(pVM); AssertReturn(pVM->pgm.s.apInterPaePDs[3], VERR_NO_PAGE_MEMORY);
pVM->pgm.s.pInterPaePDPT = (PX86PDPT)MMR3PageAllocLow(pVM); AssertReturn(pVM->pgm.s.pInterPaePDPT, VERR_NO_PAGE_MEMORY);
pVM->pgm.s.pInterPaePDPT64 = (PX86PDPT)MMR3PageAllocLow(pVM); AssertReturn(pVM->pgm.s.pInterPaePDPT64, VERR_NO_PAGE_MEMORY);
pVM->pgm.s.pInterPaePML4 = (PX86PML4)MMR3PageAllocLow(pVM); AssertReturn(pVM->pgm.s.pInterPaePML4, VERR_NO_PAGE_MEMORY);
pVM->pgm.s.HCPhysInterPD = MMPage2Phys(pVM, pVM->pgm.s.pInterPD);
AssertRelease(pVM->pgm.s.HCPhysInterPD != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPD & PAGE_OFFSET_MASK));
pVM->pgm.s.HCPhysInterPaePDPT = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPT);
AssertRelease(pVM->pgm.s.HCPhysInterPaePDPT != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPaePDPT & PAGE_OFFSET_MASK));
pVM->pgm.s.HCPhysInterPaePML4 = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePML4);
AssertRelease(pVM->pgm.s.HCPhysInterPaePML4 != NIL_RTHCPHYS && !(pVM->pgm.s.HCPhysInterPaePML4 & PAGE_OFFSET_MASK) && pVM->pgm.s.HCPhysInterPaePML4 < 0xffffffff);
/*
* Initialize the pages, setting up the PML4 and PDPT for repetitive 4GB action.
*/
ASMMemZeroPage(pVM->pgm.s.pInterPD);
ASMMemZeroPage(pVM->pgm.s.apInterPTs[0]);
ASMMemZeroPage(pVM->pgm.s.apInterPTs[1]);
ASMMemZeroPage(pVM->pgm.s.apInterPaePTs[0]);
ASMMemZeroPage(pVM->pgm.s.apInterPaePTs[1]);
ASMMemZeroPage(pVM->pgm.s.pInterPaePDPT);
for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.apInterPaePDs); i++)
{
ASMMemZeroPage(pVM->pgm.s.apInterPaePDs[i]);
pVM->pgm.s.pInterPaePDPT->a[i].u = X86_PDPE_P | PGM_PLXFLAGS_PERMANENT
| MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[i]);
}
for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.pInterPaePDPT64->a); i++)
{
const unsigned iPD = i % RT_ELEMENTS(pVM->pgm.s.apInterPaePDs);
pVM->pgm.s.pInterPaePDPT64->a[i].u = X86_PDPE_P | X86_PDPE_RW | X86_PDPE_US | X86_PDPE_A | PGM_PLXFLAGS_PERMANENT
| MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[iPD]);
}
RTHCPHYS HCPhysInterPaePDPT64 = MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPT64);
for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.pInterPaePML4->a); i++)
pVM->pgm.s.pInterPaePML4->a[i].u = X86_PML4E_P | X86_PML4E_RW | X86_PML4E_US | X86_PML4E_A | PGM_PLXFLAGS_PERMANENT
| HCPhysInterPaePDPT64;
/*
* Initialize paging workers and mode from current host mode
* and the guest running in real mode.
*/
pVM->pgm.s.enmHostMode = SUPR3GetPagingMode();
switch (pVM->pgm.s.enmHostMode)
{
case SUPPAGINGMODE_32_BIT:
case SUPPAGINGMODE_32_BIT_GLOBAL:
case SUPPAGINGMODE_PAE:
case SUPPAGINGMODE_PAE_GLOBAL:
case SUPPAGINGMODE_PAE_NX:
case SUPPAGINGMODE_PAE_GLOBAL_NX:
break;
case SUPPAGINGMODE_AMD64:
case SUPPAGINGMODE_AMD64_GLOBAL:
case SUPPAGINGMODE_AMD64_NX:
case SUPPAGINGMODE_AMD64_GLOBAL_NX:
#ifndef VBOX_WITH_HYBRID_32BIT_KERNEL
if (ARCH_BITS != 64)
{
AssertMsgFailed(("Host mode %d (64-bit) is not supported by non-64bit builds\n", pVM->pgm.s.enmHostMode));
LogRel(("Host mode %d (64-bit) is not supported by non-64bit builds\n", pVM->pgm.s.enmHostMode));
return VERR_PGM_UNSUPPORTED_HOST_PAGING_MODE;
}
#endif
break;
default:
AssertMsgFailed(("Host mode %d is not supported\n", pVM->pgm.s.enmHostMode));
return VERR_PGM_UNSUPPORTED_HOST_PAGING_MODE;
}
rc = pgmR3ModeDataInit(pVM, false /* don't resolve GC and R0 syms yet */);
if (RT_SUCCESS(rc))
{
LogFlow(("pgmR3InitPaging: returns successfully\n"));
#if HC_ARCH_BITS == 64
LogRel(("Debug: HCPhysInterPD=%RHp HCPhysInterPaePDPT=%RHp HCPhysInterPaePML4=%RHp\n",
pVM->pgm.s.HCPhysInterPD, pVM->pgm.s.HCPhysInterPaePDPT, pVM->pgm.s.HCPhysInterPaePML4));
LogRel(("Debug: apInterPTs={%RHp,%RHp} apInterPaePTs={%RHp,%RHp} apInterPaePDs={%RHp,%RHp,%RHp,%RHp} pInterPaePDPT64=%RHp\n",
MMPage2Phys(pVM, pVM->pgm.s.apInterPTs[0]), MMPage2Phys(pVM, pVM->pgm.s.apInterPTs[1]),
MMPage2Phys(pVM, pVM->pgm.s.apInterPaePTs[0]), MMPage2Phys(pVM, pVM->pgm.s.apInterPaePTs[1]),
MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[0]), MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[1]), MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[2]), MMPage2Phys(pVM, pVM->pgm.s.apInterPaePDs[3]),
MMPage2Phys(pVM, pVM->pgm.s.pInterPaePDPT64)));
#endif
return VINF_SUCCESS;
}
LogFlow(("pgmR3InitPaging: returns %Rrc\n", rc));
return rc;
}
/**
* Init statistics
*/
static void pgmR3InitStats(PVM pVM)
{
PPGM pPGM = &pVM->pgm.s;
int rc;
/* Common - misc variables */
STAM_REL_REG(pVM, &pPGM->cAllPages, STAMTYPE_U32, "/PGM/Page/cAllPages", STAMUNIT_COUNT, "The total number of pages.");
STAM_REL_REG(pVM, &pPGM->cPrivatePages, STAMTYPE_U32, "/PGM/Page/cPrivatePages", STAMUNIT_COUNT, "The number of private pages.");
STAM_REL_REG(pVM, &pPGM->cSharedPages, STAMTYPE_U32, "/PGM/Page/cSharedPages", STAMUNIT_COUNT, "The number of shared pages.");
STAM_REL_REG(pVM, &pPGM->cReusedSharedPages, STAMTYPE_U32, "/PGM/Page/cReusedSharedPages", STAMUNIT_COUNT, "The number of reused shared pages.");
STAM_REL_REG(pVM, &pPGM->cZeroPages, STAMTYPE_U32, "/PGM/Page/cZeroPages", STAMUNIT_COUNT, "The number of zero backed pages.");
STAM_REL_REG(pVM, &pPGM->cPureMmioPages, STAMTYPE_U32, "/PGM/Page/cPureMmioPages", STAMUNIT_COUNT, "The number of pure MMIO pages.");
STAM_REL_REG(pVM, &pPGM->cMonitoredPages, STAMTYPE_U32, "/PGM/Page/cMonitoredPages", STAMUNIT_COUNT, "The number of write monitored pages.");
STAM_REL_REG(pVM, &pPGM->cWrittenToPages, STAMTYPE_U32, "/PGM/Page/cWrittenToPages", STAMUNIT_COUNT, "The number of previously write monitored pages that have been written to.");
STAM_REL_REG(pVM, &pPGM->cWriteLockedPages, STAMTYPE_U32, "/PGM/Page/cWriteLockedPages", STAMUNIT_COUNT, "The number of write(/read) locked pages.");
STAM_REL_REG(pVM, &pPGM->cReadLockedPages, STAMTYPE_U32, "/PGM/Page/cReadLockedPages", STAMUNIT_COUNT, "The number of read (only) locked pages.");
STAM_REL_REG(pVM, &pPGM->cBalloonedPages, STAMTYPE_U32, "/PGM/Page/cBalloonedPages", STAMUNIT_COUNT, "The number of ballooned pages.");
STAM_REL_REG(pVM, &pPGM->cHandyPages, STAMTYPE_U32, "/PGM/Page/cHandyPages", STAMUNIT_COUNT, "The number of handy pages (not included in cAllPages).");
STAM_REL_REG(pVM, &pPGM->cRelocations, STAMTYPE_COUNTER, "/PGM/cRelocations", STAMUNIT_OCCURENCES,"Number of hypervisor relocations.");
STAM_REL_REG(pVM, &pPGM->ChunkR3Map.c, STAMTYPE_U32, "/PGM/ChunkR3Map/c", STAMUNIT_COUNT, "Number of mapped chunks.");
STAM_REL_REG(pVM, &pPGM->ChunkR3Map.cMax, STAMTYPE_U32, "/PGM/ChunkR3Map/cMax", STAMUNIT_COUNT, "Maximum number of mapped chunks.");
STAM_REL_REG(pVM, &pPGM->StatLargePageAlloc, STAMTYPE_COUNTER, "/PGM/LargePage/Alloc", STAMUNIT_OCCURENCES, "The number of large pages we've used.");
STAM_REL_REG(pVM, &pPGM->StatLargePageReused, STAMTYPE_COUNTER, "/PGM/LargePage/Reused", STAMUNIT_OCCURENCES, "The number of times we've reused a large page.");
STAM_REL_REG(pVM, &pPGM->StatLargePageRefused, STAMTYPE_COUNTER, "/PGM/LargePage/Refused", STAMUNIT_OCCURENCES, "The number of times we couldn't use a large page.");
STAM_REL_REG(pVM, &pPGM->StatLargePageRecheck, STAMTYPE_COUNTER, "/PGM/LargePage/Recheck", STAMUNIT_OCCURENCES, "The number of times we've rechecked a disabled large page.");
/* Live save */
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.fActive, STAMTYPE_U8, "/PGM/LiveSave/fActive", STAMUNIT_COUNT, "Active or not.");
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.cIgnoredPages, STAMTYPE_U32, "/PGM/LiveSave/cIgnoredPages", STAMUNIT_COUNT, "The number of ignored pages in the RAM ranges (i.e. MMIO, MMIO2 and ROM).");
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.cDirtyPagesLong, STAMTYPE_U32, "/PGM/LiveSave/cDirtyPagesLong", STAMUNIT_COUNT, "Longer term dirty page average.");
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.cDirtyPagesShort, STAMTYPE_U32, "/PGM/LiveSave/cDirtyPagesShort", STAMUNIT_COUNT, "Short term dirty page average.");
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.cPagesPerSecond, STAMTYPE_U32, "/PGM/LiveSave/cPagesPerSecond", STAMUNIT_COUNT, "Pages per second.");
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.cSavedPages, STAMTYPE_U64, "/PGM/LiveSave/cSavedPages", STAMUNIT_COUNT, "The total number of saved pages.");
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Ram.cReadyPages, STAMTYPE_U32, "/PGM/LiveSave/Ram/cReadPages", STAMUNIT_COUNT, "RAM: Ready pages.");
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Ram.cDirtyPages, STAMTYPE_U32, "/PGM/LiveSave/Ram/cDirtyPages", STAMUNIT_COUNT, "RAM: Dirty pages.");
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Ram.cZeroPages, STAMTYPE_U32, "/PGM/LiveSave/Ram/cZeroPages", STAMUNIT_COUNT, "RAM: Ready zero pages.");
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Ram.cMonitoredPages, STAMTYPE_U32, "/PGM/LiveSave/Ram/cMonitoredPages", STAMUNIT_COUNT, "RAM: Write monitored pages.");
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Rom.cReadyPages, STAMTYPE_U32, "/PGM/LiveSave/Rom/cReadPages", STAMUNIT_COUNT, "ROM: Ready pages.");
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Rom.cDirtyPages, STAMTYPE_U32, "/PGM/LiveSave/Rom/cDirtyPages", STAMUNIT_COUNT, "ROM: Dirty pages.");
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Rom.cZeroPages, STAMTYPE_U32, "/PGM/LiveSave/Rom/cZeroPages", STAMUNIT_COUNT, "ROM: Ready zero pages.");
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Rom.cMonitoredPages, STAMTYPE_U32, "/PGM/LiveSave/Rom/cMonitoredPages", STAMUNIT_COUNT, "ROM: Write monitored pages.");
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Mmio2.cReadyPages, STAMTYPE_U32, "/PGM/LiveSave/Mmio2/cReadPages", STAMUNIT_COUNT, "MMIO2: Ready pages.");
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Mmio2.cDirtyPages, STAMTYPE_U32, "/PGM/LiveSave/Mmio2/cDirtyPages", STAMUNIT_COUNT, "MMIO2: Dirty pages.");
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Mmio2.cZeroPages, STAMTYPE_U32, "/PGM/LiveSave/Mmio2/cZeroPages", STAMUNIT_COUNT, "MMIO2: Ready zero pages.");
STAM_REL_REG_USED(pVM, &pPGM->LiveSave.Mmio2.cMonitoredPages,STAMTYPE_U32, "/PGM/LiveSave/Mmio2/cMonitoredPages",STAMUNIT_COUNT, "MMIO2: Write monitored pages.");
#ifdef VBOX_WITH_STATISTICS
# define PGM_REG_COUNTER(a, b, c) \
rc = STAMR3RegisterF(pVM, a, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, c, b); \
AssertRC(rc);
# define PGM_REG_COUNTER_BYTES(a, b, c) \
rc = STAMR3RegisterF(pVM, a, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_BYTES, c, b); \
AssertRC(rc);
# define PGM_REG_PROFILE(a, b, c) \
rc = STAMR3RegisterF(pVM, a, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, c, b); \
AssertRC(rc);
PGM_REG_PROFILE(&pPGM->StatAllocLargePage, "/PGM/LargePage/Prof/Alloc", "Time spent by the host OS for large page allocation.");
PGM_REG_PROFILE(&pPGM->StatClearLargePage, "/PGM/LargePage/Prof/Clear", "Time spent clearing the newly allocated large pages.");
PGM_REG_PROFILE(&pPGM->StatR3IsValidLargePage, "/PGM/LargePage/Prof/R3/IsValid", "pgmPhysIsValidLargePage profiling - R3.");
PGM_REG_PROFILE(&pPGM->StatRZIsValidLargePage, "/PGM/LargePage/Prof/RZ/IsValid", "pgmPhysIsValidLargePage profiling - RZ.");
PGM_REG_COUNTER(&pPGM->StatR3DetectedConflicts, "/PGM/R3/DetectedConflicts", "The number of times PGMR3CheckMappingConflicts() detected a conflict.");
PGM_REG_PROFILE(&pPGM->StatR3ResolveConflict, "/PGM/R3/ResolveConflict", "pgmR3SyncPTResolveConflict() profiling (includes the entire relocation).");
PGM_REG_COUNTER(&pPGM->StatR3PhysRead, "/PGM/R3/Phys/Read", "The number of times PGMPhysRead was called.");
PGM_REG_COUNTER_BYTES(&pPGM->StatR3PhysReadBytes, "/PGM/R3/Phys/Read/Bytes", "The number of bytes read by PGMPhysRead.");
PGM_REG_COUNTER(&pPGM->StatR3PhysWrite, "/PGM/R3/Phys/Write", "The number of times PGMPhysWrite was called.");
PGM_REG_COUNTER_BYTES(&pPGM->StatR3PhysWriteBytes, "/PGM/R3/Phys/Write/Bytes", "The number of bytes written by PGMPhysWrite.");
PGM_REG_COUNTER(&pPGM->StatR3PhysSimpleRead, "/PGM/R3/Phys/Simple/Read", "The number of times PGMPhysSimpleReadGCPtr was called.");
PGM_REG_COUNTER_BYTES(&pPGM->StatR3PhysSimpleReadBytes, "/PGM/R3/Phys/Simple/Read/Bytes", "The number of bytes read by PGMPhysSimpleReadGCPtr.");
PGM_REG_COUNTER(&pPGM->StatR3PhysSimpleWrite, "/PGM/R3/Phys/Simple/Write", "The number of times PGMPhysSimpleWriteGCPtr was called.");
PGM_REG_COUNTER_BYTES(&pPGM->StatR3PhysSimpleWriteBytes, "/PGM/R3/Phys/Simple/Write/Bytes", "The number of bytes written by PGMPhysSimpleWriteGCPtr.");
PGM_REG_COUNTER(&pPGM->StatRZChunkR3MapTlbHits, "/PGM/ChunkR3Map/TlbHitsRZ", "TLB hits.");
PGM_REG_COUNTER(&pPGM->StatRZChunkR3MapTlbMisses, "/PGM/ChunkR3Map/TlbMissesRZ", "TLB misses.");
PGM_REG_COUNTER(&pPGM->StatRZPageMapTlbHits, "/PGM/RZ/Page/MapTlbHits", "TLB hits.");
PGM_REG_COUNTER(&pPGM->StatRZPageMapTlbMisses, "/PGM/RZ/Page/MapTlbMisses", "TLB misses.");
PGM_REG_COUNTER(&pPGM->StatR3ChunkR3MapTlbHits, "/PGM/ChunkR3Map/TlbHitsR3", "TLB hits.");
PGM_REG_COUNTER(&pPGM->StatR3ChunkR3MapTlbMisses, "/PGM/ChunkR3Map/TlbMissesR3", "TLB misses.");
PGM_REG_COUNTER(&pPGM->StatR3PageMapTlbHits, "/PGM/R3/Page/MapTlbHits", "TLB hits.");
PGM_REG_COUNTER(&pPGM->StatR3PageMapTlbMisses, "/PGM/R3/Page/MapTlbMisses", "TLB misses.");
PGM_REG_COUNTER(&pPGM->StatPageMapTlbFlushes, "/PGM/R3/Page/MapTlbFlushes", "TLB flushes (all contexts).");
PGM_REG_COUNTER(&pPGM->StatPageMapTlbFlushEntry, "/PGM/R3/Page/MapTlbFlushEntry", "TLB entry flushes (all contexts).");
PGM_REG_PROFILE(&pPGM->StatRZSyncCR3HandlerVirtualUpdate, "/PGM/RZ/SyncCR3/Handlers/VirtualUpdate", "Profiling of the virtual handler updates.");
PGM_REG_PROFILE(&pPGM->StatRZSyncCR3HandlerVirtualReset, "/PGM/RZ/SyncCR3/Handlers/VirtualReset", "Profiling of the virtual handler resets.");
PGM_REG_PROFILE(&pPGM->StatR3SyncCR3HandlerVirtualUpdate, "/PGM/R3/SyncCR3/Handlers/VirtualUpdate", "Profiling of the virtual handler updates.");
PGM_REG_PROFILE(&pPGM->StatR3SyncCR3HandlerVirtualReset, "/PGM/R3/SyncCR3/Handlers/VirtualReset", "Profiling of the virtual handler resets.");
PGM_REG_COUNTER(&pPGM->StatRZPhysHandlerReset, "/PGM/RZ/PhysHandlerReset", "The number of times PGMHandlerPhysicalReset is called.");
PGM_REG_COUNTER(&pPGM->StatR3PhysHandlerReset, "/PGM/R3/PhysHandlerReset", "The number of times PGMHandlerPhysicalReset is called.");
PGM_REG_PROFILE(&pPGM->StatRZVirtHandlerSearchByPhys, "/PGM/RZ/VirtHandlerSearchByPhys", "Profiling of pgmHandlerVirtualFindByPhysAddr.");
PGM_REG_PROFILE(&pPGM->StatR3VirtHandlerSearchByPhys, "/PGM/R3/VirtHandlerSearchByPhys", "Profiling of pgmHandlerVirtualFindByPhysAddr.");
PGM_REG_COUNTER(&pPGM->StatRZPageReplaceShared, "/PGM/RZ/Page/ReplacedShared", "Times a shared page was replaced.");
PGM_REG_COUNTER(&pPGM->StatRZPageReplaceZero, "/PGM/RZ/Page/ReplacedZero", "Times the zero page was replaced.");
/// @todo PGM_REG_COUNTER(&pPGM->StatRZPageHandyAllocs, "/PGM/RZ/Page/HandyAllocs", "Number of times we've allocated more handy pages.");
PGM_REG_COUNTER(&pPGM->StatR3PageReplaceShared, "/PGM/R3/Page/ReplacedShared", "Times a shared page was replaced.");
PGM_REG_COUNTER(&pPGM->StatR3PageReplaceZero, "/PGM/R3/Page/ReplacedZero", "Times the zero page was replaced.");
/// @todo PGM_REG_COUNTER(&pPGM->StatR3PageHandyAllocs, "/PGM/R3/Page/HandyAllocs", "Number of times we've allocated more handy pages.");
PGM_REG_COUNTER(&pPGM->StatRZPhysRead, "/PGM/RZ/Phys/Read", "The number of times PGMPhysRead was called.");
PGM_REG_COUNTER_BYTES(&pPGM->StatRZPhysReadBytes, "/PGM/RZ/Phys/Read/Bytes", "The number of bytes read by PGMPhysRead.");
PGM_REG_COUNTER(&pPGM->StatRZPhysWrite, "/PGM/RZ/Phys/Write", "The number of times PGMPhysWrite was called.");
PGM_REG_COUNTER_BYTES(&pPGM->StatRZPhysWriteBytes, "/PGM/RZ/Phys/Write/Bytes", "The number of bytes written by PGMPhysWrite.");
PGM_REG_COUNTER(&pPGM->StatRZPhysSimpleRead, "/PGM/RZ/Phys/Simple/Read", "The number of times PGMPhysSimpleReadGCPtr was called.");
PGM_REG_COUNTER_BYTES(&pPGM->StatRZPhysSimpleReadBytes, "/PGM/RZ/Phys/Simple/Read/Bytes", "The number of bytes read by PGMPhysSimpleReadGCPtr.");
PGM_REG_COUNTER(&pPGM->StatRZPhysSimpleWrite, "/PGM/RZ/Phys/Simple/Write", "The number of times PGMPhysSimpleWriteGCPtr was called.");
PGM_REG_COUNTER_BYTES(&pPGM->StatRZPhysSimpleWriteBytes, "/PGM/RZ/Phys/Simple/Write/Bytes", "The number of bytes written by PGMPhysSimpleWriteGCPtr.");
/* GC only: */
PGM_REG_COUNTER(&pPGM->StatRCDynMapCacheHits, "/PGM/RC/DynMapCache/Hits" , "Number of dynamic page mapping cache hits.");
PGM_REG_COUNTER(&pPGM->StatRCDynMapCacheMisses, "/PGM/RC/DynMapCache/Misses" , "Number of dynamic page mapping cache misses.");
PGM_REG_COUNTER(&pPGM->StatRCInvlPgConflict, "/PGM/RC/InvlPgConflict", "Number of times PGMInvalidatePage() detected a mapping conflict.");
PGM_REG_COUNTER(&pPGM->StatRCInvlPgSyncMonCR3, "/PGM/RC/InvlPgSyncMonitorCR3", "Number of times PGMInvalidatePage() ran into PGM_SYNC_MONITOR_CR3.");
PGM_REG_COUNTER(&pPGM->StatRCPhysRead, "/PGM/RC/Phys/Read", "The number of times PGMPhysRead was called.");
PGM_REG_COUNTER_BYTES(&pPGM->StatRCPhysReadBytes, "/PGM/RC/Phys/Read/Bytes", "The number of bytes read by PGMPhysRead.");
PGM_REG_COUNTER(&pPGM->StatRCPhysWrite, "/PGM/RC/Phys/Write", "The number of times PGMPhysWrite was called.");
PGM_REG_COUNTER_BYTES(&pPGM->StatRCPhysWriteBytes, "/PGM/RC/Phys/Write/Bytes", "The number of bytes written by PGMPhysWrite.");
PGM_REG_COUNTER(&pPGM->StatRCPhysSimpleRead, "/PGM/RC/Phys/Simple/Read", "The number of times PGMPhysSimpleReadGCPtr was called.");
PGM_REG_COUNTER_BYTES(&pPGM->StatRCPhysSimpleReadBytes, "/PGM/RC/Phys/Simple/Read/Bytes", "The number of bytes read by PGMPhysSimpleReadGCPtr.");
PGM_REG_COUNTER(&pPGM->StatRCPhysSimpleWrite, "/PGM/RC/Phys/Simple/Write", "The number of times PGMPhysSimpleWriteGCPtr was called.");
PGM_REG_COUNTER_BYTES(&pPGM->StatRCPhysSimpleWriteBytes, "/PGM/RC/Phys/Simple/Write/Bytes", "The number of bytes written by PGMPhysSimpleWriteGCPtr.");
PGM_REG_COUNTER(&pPGM->StatTrackVirgin, "/PGM/Track/Virgin", "The number of first time shadowings");
PGM_REG_COUNTER(&pPGM->StatTrackAliased, "/PGM/Track/Aliased", "The number of times switching to cRef2, i.e. the page is being shadowed by two PTs.");
PGM_REG_COUNTER(&pPGM->StatTrackAliasedMany, "/PGM/Track/AliasedMany", "The number of times we're tracking using cRef2.");
PGM_REG_COUNTER(&pPGM->StatTrackAliasedLots, "/PGM/Track/AliasedLots", "The number of times we're hitting pages which has overflowed cRef2");
PGM_REG_COUNTER(&pPGM->StatTrackOverflows, "/PGM/Track/Overflows", "The number of times the extent list grows too long.");
PGM_REG_COUNTER(&pPGM->StatTrackNoExtentsLeft, "/PGM/Track/NoExtentLeft", "The number of times the extent list was exhausted.");
PGM_REG_PROFILE(&pPGM->StatTrackDeref, "/PGM/Track/Deref", "Profiling of SyncPageWorkerTrackDeref (expensive).");
# undef PGM_REG_COUNTER
# undef PGM_REG_PROFILE
#endif
/*
* Note! The layout below matches the member layout exactly!
*/
/*
* Common - stats
*/
for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++)
{
PPGMCPU pPgmCpu = &pVM->aCpus[idCpu].pgm.s;
#define PGM_REG_COUNTER(a, b, c) \
rc = STAMR3RegisterF(pVM, a, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, c, b, idCpu); \
AssertRC(rc);
#define PGM_REG_PROFILE(a, b, c) \
rc = STAMR3RegisterF(pVM, a, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_TICKS_PER_CALL, c, b, idCpu); \
AssertRC(rc);
PGM_REG_COUNTER(&pPgmCpu->cGuestModeChanges, "/PGM/CPU%u/cGuestModeChanges", "Number of guest mode changes.");
#ifdef VBOX_WITH_STATISTICS
# if 0 /* rarely useful; leave for debugging. */
for (unsigned j = 0; j < RT_ELEMENTS(pPgmCpu->StatSyncPtPD); j++)
STAMR3RegisterF(pVM, &pPgmCpu->StatSyncPtPD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES,
"The number of SyncPT per PD n.", "/PGM/CPU%u/PDSyncPT/%04X", i, j);
for (unsigned j = 0; j < RT_ELEMENTS(pPgmCpu->StatSyncPagePD); j++)
STAMR3RegisterF(pVM, &pPgmCpu->StatSyncPagePD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES,
"The number of SyncPage per PD n.", "/PGM/CPU%u/PDSyncPage/%04X", i, j);
# endif
/* R0 only: */
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapMigrateInvlPg, "/PGM/CPU%u/R0/DynMapMigrateInvlPg", "invlpg count in PGMDynMapMigrateAutoSet.");
PGM_REG_PROFILE(&pPgmCpu->StatR0DynMapGCPageInl, "/PGM/CPU%u/R0/DynMapPageGCPageInl", "Calls to pgmR0DynMapGCPageInlined.");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapGCPageInlHits, "/PGM/CPU%u/R0/DynMapPageGCPageInl/Hits", "Hash table lookup hits.");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapGCPageInlMisses, "/PGM/CPU%u/R0/DynMapPageGCPageInl/Misses", "Misses that falls back to code common with PGMDynMapHCPage.");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapGCPageInlRamHits, "/PGM/CPU%u/R0/DynMapPageGCPageInl/RamHits", "1st ram range hits.");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapGCPageInlRamMisses, "/PGM/CPU%u/R0/DynMapPageGCPageInl/RamMisses", "1st ram range misses, takes slow path.");
PGM_REG_PROFILE(&pPgmCpu->StatR0DynMapHCPageInl, "/PGM/CPU%u/R0/DynMapPageHCPageInl", "Calls to pgmR0DynMapHCPageInlined.");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapHCPageInlHits, "/PGM/CPU%u/R0/DynMapPageHCPageInl/Hits", "Hash table lookup hits.");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapHCPageInlMisses, "/PGM/CPU%u/R0/DynMapPageHCPageInl/Misses", "Misses that falls back to code common with PGMDynMapHCPage.");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPage, "/PGM/CPU%u/R0/DynMapPage", "Calls to pgmR0DynMapPage");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapSetOptimize, "/PGM/CPU%u/R0/DynMapPage/SetOptimize", "Calls to pgmDynMapOptimizeAutoSet.");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapSetSearchFlushes, "/PGM/CPU%u/R0/DynMapPage/SetSearchFlushes","Set search restorting to subset flushes.");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapSetSearchHits, "/PGM/CPU%u/R0/DynMapPage/SetSearchHits", "Set search hits.");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapSetSearchMisses, "/PGM/CPU%u/R0/DynMapPage/SetSearchMisses", "Set search misses.");
PGM_REG_PROFILE(&pPgmCpu->StatR0DynMapHCPage, "/PGM/CPU%u/R0/DynMapPage/HCPage", "Calls to PGMDynMapHCPage (ring-0).");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPageHits0, "/PGM/CPU%u/R0/DynMapPage/Hits0", "Hits at iPage+0");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPageHits1, "/PGM/CPU%u/R0/DynMapPage/Hits1", "Hits at iPage+1");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPageHits2, "/PGM/CPU%u/R0/DynMapPage/Hits2", "Hits at iPage+2");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPageInvlPg, "/PGM/CPU%u/R0/DynMapPage/InvlPg", "invlpg count in pgmR0DynMapPageSlow.");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPageSlow, "/PGM/CPU%u/R0/DynMapPage/Slow", "Calls to pgmR0DynMapPageSlow - subtract this from pgmR0DynMapPage to get 1st level hits.");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPageSlowLoopHits, "/PGM/CPU%u/R0/DynMapPage/SlowLoopHits" , "Hits in the loop path.");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPageSlowLoopMisses, "/PGM/CPU%u/R0/DynMapPage/SlowLoopMisses", "Misses in the loop path. NonLoopMisses = Slow - SlowLoopHit - SlowLoopMisses");
//PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPageSlowLostHits, "/PGM/CPU%u/R0/DynMapPage/SlowLostHits", "Lost hits.");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapSubsets, "/PGM/CPU%u/R0/Subsets", "Times PGMDynMapPushAutoSubset was called.");
PGM_REG_COUNTER(&pPgmCpu->StatR0DynMapPopFlushes, "/PGM/CPU%u/R0/SubsetPopFlushes", "Times PGMDynMapPopAutoSubset flushes the subset.");
PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[0], "/PGM/CPU%u/R0/SetSize000..09", "00-09% filled");
PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[1], "/PGM/CPU%u/R0/SetSize010..19", "10-19% filled");
PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[2], "/PGM/CPU%u/R0/SetSize020..29", "20-29% filled");
PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[3], "/PGM/CPU%u/R0/SetSize030..39", "30-39% filled");
PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[4], "/PGM/CPU%u/R0/SetSize040..49", "40-49% filled");
PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[5], "/PGM/CPU%u/R0/SetSize050..59", "50-59% filled");
PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[6], "/PGM/CPU%u/R0/SetSize060..69", "60-69% filled");
PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[7], "/PGM/CPU%u/R0/SetSize070..79", "70-79% filled");
PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[8], "/PGM/CPU%u/R0/SetSize080..89", "80-89% filled");
PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[9], "/PGM/CPU%u/R0/SetSize090..99", "90-99% filled");
PGM_REG_COUNTER(&pPgmCpu->aStatR0DynMapSetSize[10], "/PGM/CPU%u/R0/SetSize100", "100% filled");
/* RZ only: */
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0e, "/PGM/CPU%u/RZ/Trap0e", "Profiling of the PGMTrap0eHandler() body.");
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTimeCheckPageFault, "/PGM/CPU%u/RZ/Trap0e/Time/CheckPageFault", "Profiling of checking for dirty/access emulation faults.");
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTimeSyncPT, "/PGM/CPU%u/RZ/Trap0e/Time/SyncPT", "Profiling of lazy page table syncing.");
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTimeMapping, "/PGM/CPU%u/RZ/Trap0e/Time/Mapping", "Profiling of checking virtual mappings.");
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTimeOutOfSync, "/PGM/CPU%u/RZ/Trap0e/Time/OutOfSync", "Profiling of out of sync page handling.");
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTimeHandlers, "/PGM/CPU%u/RZ/Trap0e/Time/Handlers", "Profiling of checking handlers.");
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2CSAM, "/PGM/CPU%u/RZ/Trap0e/Time2/CSAM", "Profiling of the Trap0eHandler body when the cause is CSAM.");
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2DirtyAndAccessed, "/PGM/CPU%u/RZ/Trap0e/Time2/DirtyAndAccessedBits", "Profiling of the Trap0eHandler body when the cause is dirty and/or accessed bit emulation.");
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2GuestTrap, "/PGM/CPU%u/RZ/Trap0e/Time2/GuestTrap", "Profiling of the Trap0eHandler body when the cause is a guest trap.");
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2HndPhys, "/PGM/CPU%u/RZ/Trap0e/Time2/HandlerPhysical", "Profiling of the Trap0eHandler body when the cause is a physical handler.");
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2HndVirt, "/PGM/CPU%u/RZ/Trap0e/Time2/HandlerVirtual", "Profiling of the Trap0eHandler body when the cause is a virtual handler.");
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2HndUnhandled, "/PGM/CPU%u/RZ/Trap0e/Time2/HandlerUnhandled", "Profiling of the Trap0eHandler body when the cause is access outside the monitored areas of a monitored page.");
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2Misc, "/PGM/CPU%u/RZ/Trap0e/Time2/Misc", "Profiling of the Trap0eHandler body when the cause is not known.");
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2OutOfSync, "/PGM/CPU%u/RZ/Trap0e/Time2/OutOfSync", "Profiling of the Trap0eHandler body when the cause is an out-of-sync page.");
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2OutOfSyncHndPhys, "/PGM/CPU%u/RZ/Trap0e/Time2/OutOfSyncHndPhys", "Profiling of the Trap0eHandler body when the cause is an out-of-sync physical handler page.");
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2OutOfSyncHndVirt, "/PGM/CPU%u/RZ/Trap0e/Time2/OutOfSyncHndVirt", "Profiling of the Trap0eHandler body when the cause is an out-of-sync virtual handler page.");
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2OutOfSyncHndObs, "/PGM/CPU%u/RZ/Trap0e/Time2/OutOfSyncObsHnd", "Profiling of the Trap0eHandler body when the cause is an obsolete handler page.");
PGM_REG_PROFILE(&pPgmCpu->StatRZTrap0eTime2SyncPT, "/PGM/CPU%u/RZ/Trap0e/Time2/SyncPT", "Profiling of the Trap0eHandler body when the cause is lazy syncing of a PT.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eConflicts, "/PGM/CPU%u/RZ/Trap0e/Conflicts", "The number of times #PF was caused by an undetected conflict.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eHandlersMapping, "/PGM/CPU%u/RZ/Trap0e/Handlers/Mapping", "Number of traps due to access handlers in mappings.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eHandlersOutOfSync, "/PGM/CPU%u/RZ/Trap0e/Handlers/OutOfSync", "Number of traps due to out-of-sync handled pages.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eHandlersPhysical, "/PGM/CPU%u/RZ/Trap0e/Handlers/Physical", "Number of traps due to physical access handlers.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eHandlersVirtual, "/PGM/CPU%u/RZ/Trap0e/Handlers/Virtual", "Number of traps due to virtual access handlers.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eHandlersVirtualByPhys, "/PGM/CPU%u/RZ/Trap0e/Handlers/VirtualByPhys", "Number of traps due to virtual access handlers by physical address.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eHandlersVirtualUnmarked,"/PGM/CPU%u/RZ/Trap0e/Handlers/VirtualUnmarked","Number of traps due to virtual access handlers by virtual address (without proper physical flags).");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eHandlersUnhandled, "/PGM/CPU%u/RZ/Trap0e/Handlers/Unhandled", "Number of traps due to access outside range of monitored page(s).");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eHandlersInvalid, "/PGM/CPU%u/RZ/Trap0e/Handlers/Invalid", "Number of traps due to access to invalid physical memory.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eUSNotPresentRead, "/PGM/CPU%u/RZ/Trap0e/Err/User/NPRead", "Number of user mode not present read page faults.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eUSNotPresentWrite, "/PGM/CPU%u/RZ/Trap0e/Err/User/NPWrite", "Number of user mode not present write page faults.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eUSWrite, "/PGM/CPU%u/RZ/Trap0e/Err/User/Write", "Number of user mode write page faults.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eUSReserved, "/PGM/CPU%u/RZ/Trap0e/Err/User/Reserved", "Number of user mode reserved bit page faults.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eUSNXE, "/PGM/CPU%u/RZ/Trap0e/Err/User/NXE", "Number of user mode NXE page faults.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eUSRead, "/PGM/CPU%u/RZ/Trap0e/Err/User/Read", "Number of user mode read page faults.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eSVNotPresentRead, "/PGM/CPU%u/RZ/Trap0e/Err/Supervisor/NPRead", "Number of supervisor mode not present read page faults.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eSVNotPresentWrite, "/PGM/CPU%u/RZ/Trap0e/Err/Supervisor/NPWrite", "Number of supervisor mode not present write page faults.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eSVWrite, "/PGM/CPU%u/RZ/Trap0e/Err/Supervisor/Write", "Number of supervisor mode write page faults.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eSVReserved, "/PGM/CPU%u/RZ/Trap0e/Err/Supervisor/Reserved", "Number of supervisor mode reserved bit page faults.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eSNXE, "/PGM/CPU%u/RZ/Trap0e/Err/Supervisor/NXE", "Number of supervisor mode NXE page faults.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eGuestPF, "/PGM/CPU%u/RZ/Trap0e/GuestPF", "Number of real guest page faults.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eGuestPFUnh, "/PGM/CPU%u/RZ/Trap0e/GuestPF/Unhandled", "Number of real guest page faults from the 'unhandled' case.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eGuestPFMapping, "/PGM/CPU%u/RZ/Trap0e/GuestPF/InMapping", "Number of real guest page faults in a mapping.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eWPEmulInRZ, "/PGM/CPU%u/RZ/Trap0e/WP/InRZ", "Number of guest page faults due to X86_CR0_WP emulation.");
PGM_REG_COUNTER(&pPgmCpu->StatRZTrap0eWPEmulToR3, "/PGM/CPU%u/RZ/Trap0e/WP/ToR3", "Number of guest page faults due to X86_CR0_WP emulation (forward to R3 for emulation).");
#if 0 /* rarely useful; leave for debugging. */
for (unsigned j = 0; j < RT_ELEMENTS(pPgmCpu->StatRZTrap0ePD); j++)
STAMR3RegisterF(pVM, &pPgmCpu->StatRZTrap0ePD[i], STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES,
"The number of traps in page directory n.", "/PGM/CPU%u/RZ/Trap0e/PD/%04X", i, j);
#endif
PGM_REG_COUNTER(&pPgmCpu->StatRZGuestCR3WriteHandled, "/PGM/CPU%u/RZ/CR3WriteHandled", "The number of times the Guest CR3 change was successfully handled.");
PGM_REG_COUNTER(&pPgmCpu->StatRZGuestCR3WriteUnhandled, "/PGM/CPU%u/RZ/CR3WriteUnhandled", "The number of times the Guest CR3 change was passed back to the recompiler.");
PGM_REG_COUNTER(&pPgmCpu->StatRZGuestCR3WriteConflict, "/PGM/CPU%u/RZ/CR3WriteConflict", "The number of times the Guest CR3 monitoring detected a conflict.");
PGM_REG_COUNTER(&pPgmCpu->StatRZGuestROMWriteHandled, "/PGM/CPU%u/RZ/ROMWriteHandled", "The number of times the Guest ROM change was successfully handled.");
PGM_REG_COUNTER(&pPgmCpu->StatRZGuestROMWriteUnhandled, "/PGM/CPU%u/RZ/ROMWriteUnhandled", "The number of times the Guest ROM change was passed back to the recompiler.");
/* HC only: */
/* RZ & R3: */
PGM_REG_PROFILE(&pPgmCpu->StatRZSyncCR3, "/PGM/CPU%u/RZ/SyncCR3", "Profiling of the PGMSyncCR3() body.");
PGM_REG_PROFILE(&pPgmCpu->StatRZSyncCR3Handlers, "/PGM/CPU%u/RZ/SyncCR3/Handlers", "Profiling of the PGMSyncCR3() update handler section.");
PGM_REG_COUNTER(&pPgmCpu->StatRZSyncCR3Global, "/PGM/CPU%u/RZ/SyncCR3/Global", "The number of global CR3 syncs.");
PGM_REG_COUNTER(&pPgmCpu->StatRZSyncCR3NotGlobal, "/PGM/CPU%u/RZ/SyncCR3/NotGlobal", "The number of non-global CR3 syncs.");
PGM_REG_COUNTER(&pPgmCpu->StatRZSyncCR3DstCacheHit, "/PGM/CPU%u/RZ/SyncCR3/DstChacheHit", "The number of times we got some kind of a cache hit.");
PGM_REG_COUNTER(&pPgmCpu->StatRZSyncCR3DstFreed, "/PGM/CPU%u/RZ/SyncCR3/DstFreed", "The number of times we've had to free a shadow entry.");
PGM_REG_COUNTER(&pPgmCpu->StatRZSyncCR3DstFreedSrcNP, "/PGM/CPU%u/RZ/SyncCR3/DstFreedSrcNP", "The number of times we've had to free a shadow entry for which the source entry was not present.");
PGM_REG_COUNTER(&pPgmCpu->StatRZSyncCR3DstNotPresent, "/PGM/CPU%u/RZ/SyncCR3/DstNotPresent", "The number of times we've encountered a not present shadow entry for a present guest entry.");
PGM_REG_COUNTER(&pPgmCpu->StatRZSyncCR3DstSkippedGlobalPD, "/PGM/CPU%u/RZ/SyncCR3/DstSkippedGlobalPD", "The number of times a global page directory wasn't flushed.");
PGM_REG_COUNTER(&pPgmCpu->StatRZSyncCR3DstSkippedGlobalPT, "/PGM/CPU%u/RZ/SyncCR3/DstSkippedGlobalPT", "The number of times a page table with only global entries wasn't flushed.");
PGM_REG_PROFILE(&pPgmCpu->StatRZSyncPT, "/PGM/CPU%u/RZ/SyncPT", "Profiling of the pfnSyncPT() body.");
PGM_REG_COUNTER(&pPgmCpu->StatRZSyncPTFailed, "/PGM/CPU%u/RZ/SyncPT/Failed", "The number of times pfnSyncPT() failed.");
PGM_REG_COUNTER(&pPgmCpu->StatRZSyncPT4K, "/PGM/CPU%u/RZ/SyncPT/4K", "Nr of 4K PT syncs");
PGM_REG_COUNTER(&pPgmCpu->StatRZSyncPT4M, "/PGM/CPU%u/RZ/SyncPT/4M", "Nr of 4M PT syncs");
PGM_REG_COUNTER(&pPgmCpu->StatRZSyncPagePDNAs, "/PGM/CPU%u/RZ/SyncPagePDNAs", "The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit.");
PGM_REG_COUNTER(&pPgmCpu->StatRZSyncPagePDOutOfSync, "/PGM/CPU%u/RZ/SyncPagePDOutOfSync", "The number of time we've encountered an out-of-sync PD in SyncPage.");
PGM_REG_COUNTER(&pPgmCpu->StatRZAccessedPage, "/PGM/CPU%u/RZ/AccessedPage", "The number of pages marked not present for accessed bit emulation.");
PGM_REG_PROFILE(&pPgmCpu->StatRZDirtyBitTracking, "/PGM/CPU%u/RZ/DirtyPage", "Profiling the dirty bit tracking in CheckPageFault().");
PGM_REG_COUNTER(&pPgmCpu->StatRZDirtyPage, "/PGM/CPU%u/RZ/DirtyPage/Mark", "The number of pages marked read-only for dirty bit tracking.");
PGM_REG_COUNTER(&pPgmCpu->StatRZDirtyPageBig, "/PGM/CPU%u/RZ/DirtyPage/MarkBig", "The number of 4MB pages marked read-only for dirty bit tracking.");
PGM_REG_COUNTER(&pPgmCpu->StatRZDirtyPageSkipped, "/PGM/CPU%u/RZ/DirtyPage/Skipped", "The number of pages already dirty or readonly.");
PGM_REG_COUNTER(&pPgmCpu->StatRZDirtyPageTrap, "/PGM/CPU%u/RZ/DirtyPage/Trap", "The number of traps generated for dirty bit tracking.");
PGM_REG_COUNTER(&pPgmCpu->StatRZDirtyPageStale, "/PGM/CPU%u/RZ/DirtyPage/Stale", "The number of traps generated for dirty bit tracking (stale tlb entries).");
PGM_REG_COUNTER(&pPgmCpu->StatRZDirtiedPage, "/PGM/CPU%u/RZ/DirtyPage/SetDirty", "The number of pages marked dirty because of write accesses.");
PGM_REG_COUNTER(&pPgmCpu->StatRZDirtyTrackRealPF, "/PGM/CPU%u/RZ/DirtyPage/RealPF", "The number of real pages faults during dirty bit tracking.");
PGM_REG_COUNTER(&pPgmCpu->StatRZPageAlreadyDirty, "/PGM/CPU%u/RZ/DirtyPage/AlreadySet", "The number of pages already marked dirty because of write accesses.");
PGM_REG_PROFILE(&pPgmCpu->StatRZInvalidatePage, "/PGM/CPU%u/RZ/InvalidatePage", "PGMInvalidatePage() profiling.");
PGM_REG_COUNTER(&pPgmCpu->StatRZInvalidatePage4KBPages, "/PGM/CPU%u/RZ/InvalidatePage/4KBPages", "The number of times PGMInvalidatePage() was called for a 4KB page.");
PGM_REG_COUNTER(&pPgmCpu->StatRZInvalidatePage4MBPages, "/PGM/CPU%u/RZ/InvalidatePage/4MBPages", "The number of times PGMInvalidatePage() was called for a 4MB page.");
PGM_REG_COUNTER(&pPgmCpu->StatRZInvalidatePage4MBPagesSkip, "/PGM/CPU%u/RZ/InvalidatePage/4MBPagesSkip","The number of times PGMInvalidatePage() skipped a 4MB page.");
PGM_REG_COUNTER(&pPgmCpu->StatRZInvalidatePagePDMappings, "/PGM/CPU%u/RZ/InvalidatePage/PDMappings", "The number of times PGMInvalidatePage() was called for a page directory containing mappings (no conflict).");
PGM_REG_COUNTER(&pPgmCpu->StatRZInvalidatePagePDNAs, "/PGM/CPU%u/RZ/InvalidatePage/PDNAs", "The number of times PGMInvalidatePage() was called for a not accessed page directory.");
PGM_REG_COUNTER(&pPgmCpu->StatRZInvalidatePagePDNPs, "/PGM/CPU%u/RZ/InvalidatePage/PDNPs", "The number of times PGMInvalidatePage() was called for a not present page directory.");
PGM_REG_COUNTER(&pPgmCpu->StatRZInvalidatePagePDOutOfSync, "/PGM/CPU%u/RZ/InvalidatePage/PDOutOfSync", "The number of times PGMInvalidatePage() was called for an out of sync page directory.");
PGM_REG_COUNTER(&pPgmCpu->StatRZInvalidatePageSkipped, "/PGM/CPU%u/RZ/InvalidatePage/Skipped", "The number of times PGMInvalidatePage() was skipped due to not present shw or pending pending SyncCR3.");
PGM_REG_COUNTER(&pPgmCpu->StatRZPageOutOfSyncSupervisor, "/PGM/CPU%u/RZ/OutOfSync/SuperVisor", "Number of traps due to pages out of sync (P) and times VerifyAccessSyncPage calls SyncPage.");
PGM_REG_COUNTER(&pPgmCpu->StatRZPageOutOfSyncUser, "/PGM/CPU%u/RZ/OutOfSync/User", "Number of traps due to pages out of sync (P) and times VerifyAccessSyncPage calls SyncPage.");
PGM_REG_COUNTER(&pPgmCpu->StatRZPageOutOfSyncSupervisorWrite,"/PGM/CPU%u/RZ/OutOfSync/SuperVisorWrite", "Number of traps due to pages out of sync (RW) and times VerifyAccessSyncPage calls SyncPage.");
PGM_REG_COUNTER(&pPgmCpu->StatRZPageOutOfSyncUserWrite, "/PGM/CPU%u/RZ/OutOfSync/UserWrite", "Number of traps due to pages out of sync (RW) and times VerifyAccessSyncPage calls SyncPage.");
PGM_REG_COUNTER(&pPgmCpu->StatRZPageOutOfSyncBallloon, "/PGM/CPU%u/RZ/OutOfSync/Balloon", "The number of times a ballooned page was accessed (read).");
PGM_REG_PROFILE(&pPgmCpu->StatRZPrefetch, "/PGM/CPU%u/RZ/Prefetch", "PGMPrefetchPage profiling.");
PGM_REG_PROFILE(&pPgmCpu->StatRZFlushTLB, "/PGM/CPU%u/RZ/FlushTLB", "Profiling of the PGMFlushTLB() body.");
PGM_REG_COUNTER(&pPgmCpu->StatRZFlushTLBNewCR3, "/PGM/CPU%u/RZ/FlushTLB/NewCR3", "The number of times PGMFlushTLB was called with a new CR3, non-global. (switch)");
PGM_REG_COUNTER(&pPgmCpu->StatRZFlushTLBNewCR3Global, "/PGM/CPU%u/RZ/FlushTLB/NewCR3Global", "The number of times PGMFlushTLB was called with a new CR3, global. (switch)");
PGM_REG_COUNTER(&pPgmCpu->StatRZFlushTLBSameCR3, "/PGM/CPU%u/RZ/FlushTLB/SameCR3", "The number of times PGMFlushTLB was called with the same CR3, non-global. (flush)");
PGM_REG_COUNTER(&pPgmCpu->StatRZFlushTLBSameCR3Global, "/PGM/CPU%u/RZ/FlushTLB/SameCR3Global", "The number of times PGMFlushTLB was called with the same CR3, global. (flush)");
PGM_REG_PROFILE(&pPgmCpu->StatRZGstModifyPage, "/PGM/CPU%u/RZ/GstModifyPage", "Profiling of the PGMGstModifyPage() body.");
PGM_REG_PROFILE(&pPgmCpu->StatR3SyncCR3, "/PGM/CPU%u/R3/SyncCR3", "Profiling of the PGMSyncCR3() body.");
PGM_REG_PROFILE(&pPgmCpu->StatR3SyncCR3Handlers, "/PGM/CPU%u/R3/SyncCR3/Handlers", "Profiling of the PGMSyncCR3() update handler section.");
PGM_REG_COUNTER(&pPgmCpu->StatR3SyncCR3Global, "/PGM/CPU%u/R3/SyncCR3/Global", "The number of global CR3 syncs.");
PGM_REG_COUNTER(&pPgmCpu->StatR3SyncCR3NotGlobal, "/PGM/CPU%u/R3/SyncCR3/NotGlobal", "The number of non-global CR3 syncs.");
PGM_REG_COUNTER(&pPgmCpu->StatR3SyncCR3DstCacheHit, "/PGM/CPU%u/R3/SyncCR3/DstChacheHit", "The number of times we got some kind of a cache hit.");
PGM_REG_COUNTER(&pPgmCpu->StatR3SyncCR3DstFreed, "/PGM/CPU%u/R3/SyncCR3/DstFreed", "The number of times we've had to free a shadow entry.");
PGM_REG_COUNTER(&pPgmCpu->StatR3SyncCR3DstFreedSrcNP, "/PGM/CPU%u/R3/SyncCR3/DstFreedSrcNP", "The number of times we've had to free a shadow entry for which the source entry was not present.");
PGM_REG_COUNTER(&pPgmCpu->StatR3SyncCR3DstNotPresent, "/PGM/CPU%u/R3/SyncCR3/DstNotPresent", "The number of times we've encountered a not present shadow entry for a present guest entry.");
PGM_REG_COUNTER(&pPgmCpu->StatR3SyncCR3DstSkippedGlobalPD, "/PGM/CPU%u/R3/SyncCR3/DstSkippedGlobalPD", "The number of times a global page directory wasn't flushed.");
PGM_REG_COUNTER(&pPgmCpu->StatR3SyncCR3DstSkippedGlobalPT, "/PGM/CPU%u/R3/SyncCR3/DstSkippedGlobalPT", "The number of times a page table with only global entries wasn't flushed.");
PGM_REG_PROFILE(&pPgmCpu->StatR3SyncPT, "/PGM/CPU%u/R3/SyncPT", "Profiling of the pfnSyncPT() body.");
PGM_REG_COUNTER(&pPgmCpu->StatR3SyncPTFailed, "/PGM/CPU%u/R3/SyncPT/Failed", "The number of times pfnSyncPT() failed.");
PGM_REG_COUNTER(&pPgmCpu->StatR3SyncPT4K, "/PGM/CPU%u/R3/SyncPT/4K", "Nr of 4K PT syncs");
PGM_REG_COUNTER(&pPgmCpu->StatR3SyncPT4M, "/PGM/CPU%u/R3/SyncPT/4M", "Nr of 4M PT syncs");
PGM_REG_COUNTER(&pPgmCpu->StatR3SyncPagePDNAs, "/PGM/CPU%u/R3/SyncPagePDNAs", "The number of time we've marked a PD not present from SyncPage to virtualize the accessed bit.");
PGM_REG_COUNTER(&pPgmCpu->StatR3SyncPagePDOutOfSync, "/PGM/CPU%u/R3/SyncPagePDOutOfSync", "The number of time we've encountered an out-of-sync PD in SyncPage.");
PGM_REG_COUNTER(&pPgmCpu->StatR3AccessedPage, "/PGM/CPU%u/R3/AccessedPage", "The number of pages marked not present for accessed bit emulation.");
PGM_REG_PROFILE(&pPgmCpu->StatR3DirtyBitTracking, "/PGM/CPU%u/R3/DirtyPage", "Profiling the dirty bit tracking in CheckPageFault().");
PGM_REG_COUNTER(&pPgmCpu->StatR3DirtyPage, "/PGM/CPU%u/R3/DirtyPage/Mark", "The number of pages marked read-only for dirty bit tracking.");
PGM_REG_COUNTER(&pPgmCpu->StatR3DirtyPageBig, "/PGM/CPU%u/R3/DirtyPage/MarkBig", "The number of 4MB pages marked read-only for dirty bit tracking.");
PGM_REG_COUNTER(&pPgmCpu->StatR3DirtyPageSkipped, "/PGM/CPU%u/R3/DirtyPage/Skipped", "The number of pages already dirty or readonly.");
PGM_REG_COUNTER(&pPgmCpu->StatR3DirtyPageTrap, "/PGM/CPU%u/R3/DirtyPage/Trap", "The number of traps generated for dirty bit tracking.");
PGM_REG_COUNTER(&pPgmCpu->StatR3DirtiedPage, "/PGM/CPU%u/R3/DirtyPage/SetDirty", "The number of pages marked dirty because of write accesses.");
PGM_REG_COUNTER(&pPgmCpu->StatR3DirtyTrackRealPF, "/PGM/CPU%u/R3/DirtyPage/RealPF", "The number of real pages faults during dirty bit tracking.");
PGM_REG_COUNTER(&pPgmCpu->StatR3PageAlreadyDirty, "/PGM/CPU%u/R3/DirtyPage/AlreadySet", "The number of pages already marked dirty because of write accesses.");
PGM_REG_PROFILE(&pPgmCpu->StatR3InvalidatePage, "/PGM/CPU%u/R3/InvalidatePage", "PGMInvalidatePage() profiling.");
PGM_REG_COUNTER(&pPgmCpu->StatR3InvalidatePage4KBPages, "/PGM/CPU%u/R3/InvalidatePage/4KBPages", "The number of times PGMInvalidatePage() was called for a 4KB page.");
PGM_REG_COUNTER(&pPgmCpu->StatR3InvalidatePage4MBPages, "/PGM/CPU%u/R3/InvalidatePage/4MBPages", "The number of times PGMInvalidatePage() was called for a 4MB page.");
PGM_REG_COUNTER(&pPgmCpu->StatR3InvalidatePage4MBPagesSkip, "/PGM/CPU%u/R3/InvalidatePage/4MBPagesSkip","The number of times PGMInvalidatePage() skipped a 4MB page.");
PGM_REG_COUNTER(&pPgmCpu->StatR3InvalidatePagePDMappings, "/PGM/CPU%u/R3/InvalidatePage/PDMappings", "The number of times PGMInvalidatePage() was called for a page directory containing mappings (no conflict).");
PGM_REG_COUNTER(&pPgmCpu->StatR3InvalidatePagePDNAs, "/PGM/CPU%u/R3/InvalidatePage/PDNAs", "The number of times PGMInvalidatePage() was called for a not accessed page directory.");
PGM_REG_COUNTER(&pPgmCpu->StatR3InvalidatePagePDNPs, "/PGM/CPU%u/R3/InvalidatePage/PDNPs", "The number of times PGMInvalidatePage() was called for a not present page directory.");
PGM_REG_COUNTER(&pPgmCpu->StatR3InvalidatePagePDOutOfSync, "/PGM/CPU%u/R3/InvalidatePage/PDOutOfSync", "The number of times PGMInvalidatePage() was called for an out of sync page directory.");
PGM_REG_COUNTER(&pPgmCpu->StatR3InvalidatePageSkipped, "/PGM/CPU%u/R3/InvalidatePage/Skipped", "The number of times PGMInvalidatePage() was skipped due to not present shw or pending pending SyncCR3.");
PGM_REG_COUNTER(&pPgmCpu->StatR3PageOutOfSyncSupervisor, "/PGM/CPU%u/R3/OutOfSync/SuperVisor", "Number of traps due to pages out of sync and times VerifyAccessSyncPage calls SyncPage.");
PGM_REG_COUNTER(&pPgmCpu->StatR3PageOutOfSyncUser, "/PGM/CPU%u/R3/OutOfSync/User", "Number of traps due to pages out of sync and times VerifyAccessSyncPage calls SyncPage.");
PGM_REG_COUNTER(&pPgmCpu->StatR3PageOutOfSyncBallloon, "/PGM/CPU%u/R3/OutOfSync/Balloon", "The number of times a ballooned page was accessed (read).");
PGM_REG_PROFILE(&pPgmCpu->StatR3Prefetch, "/PGM/CPU%u/R3/Prefetch", "PGMPrefetchPage profiling.");
PGM_REG_PROFILE(&pPgmCpu->StatR3FlushTLB, "/PGM/CPU%u/R3/FlushTLB", "Profiling of the PGMFlushTLB() body.");
PGM_REG_COUNTER(&pPgmCpu->StatR3FlushTLBNewCR3, "/PGM/CPU%u/R3/FlushTLB/NewCR3", "The number of times PGMFlushTLB was called with a new CR3, non-global. (switch)");
PGM_REG_COUNTER(&pPgmCpu->StatR3FlushTLBNewCR3Global, "/PGM/CPU%u/R3/FlushTLB/NewCR3Global", "The number of times PGMFlushTLB was called with a new CR3, global. (switch)");
PGM_REG_COUNTER(&pPgmCpu->StatR3FlushTLBSameCR3, "/PGM/CPU%u/R3/FlushTLB/SameCR3", "The number of times PGMFlushTLB was called with the same CR3, non-global. (flush)");
PGM_REG_COUNTER(&pPgmCpu->StatR3FlushTLBSameCR3Global, "/PGM/CPU%u/R3/FlushTLB/SameCR3Global", "The number of times PGMFlushTLB was called with the same CR3, global. (flush)");
PGM_REG_PROFILE(&pPgmCpu->StatR3GstModifyPage, "/PGM/CPU%u/R3/GstModifyPage", "Profiling of the PGMGstModifyPage() body.");
#endif /* VBOX_WITH_STATISTICS */
#undef PGM_REG_PROFILE
#undef PGM_REG_COUNTER
}
}
/**
* Init the PGM bits that rely on VMMR0 and MM to be fully initialized.
*
* The dynamic mapping area will also be allocated and initialized at this
* time. We could allocate it during PGMR3Init of course, but the mapping
* wouldn't be allocated at that time preventing us from setting up the
* page table entries with the dummy page.
*
* @returns VBox status code.
* @param pVM VM handle.
*/
VMMR3DECL(int) PGMR3InitDynMap(PVM pVM)
{
RTGCPTR GCPtr;
int rc;
/*
* Reserve space for the dynamic mappings.
*/
rc = MMR3HyperReserve(pVM, MM_HYPER_DYNAMIC_SIZE, "Dynamic mapping", &GCPtr);
if (RT_SUCCESS(rc))
pVM->pgm.s.pbDynPageMapBaseGC = GCPtr;
if ( RT_SUCCESS(rc)
&& (pVM->pgm.s.pbDynPageMapBaseGC >> X86_PD_PAE_SHIFT) != ((pVM->pgm.s.pbDynPageMapBaseGC + MM_HYPER_DYNAMIC_SIZE - 1) >> X86_PD_PAE_SHIFT))
{
rc = MMR3HyperReserve(pVM, MM_HYPER_DYNAMIC_SIZE, "Dynamic mapping not crossing", &GCPtr);
if (RT_SUCCESS(rc))
pVM->pgm.s.pbDynPageMapBaseGC = GCPtr;
}
if (RT_SUCCESS(rc))
{
AssertRelease((pVM->pgm.s.pbDynPageMapBaseGC >> X86_PD_PAE_SHIFT) == ((pVM->pgm.s.pbDynPageMapBaseGC + MM_HYPER_DYNAMIC_SIZE - 1) >> X86_PD_PAE_SHIFT));
MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
}
return rc;
}
/**
* Ring-3 init finalizing.
*
* @returns VBox status code.
* @param pVM The VM handle.
*/
VMMR3DECL(int) PGMR3InitFinalize(PVM pVM)
{
int rc;
/*
* Reserve space for the dynamic mappings.
* Initialize the dynamic mapping pages with dummy pages to simply the cache.
*/
/* get the pointer to the page table entries. */
PPGMMAPPING pMapping = pgmGetMapping(pVM, pVM->pgm.s.pbDynPageMapBaseGC);
AssertRelease(pMapping);
const uintptr_t off = pVM->pgm.s.pbDynPageMapBaseGC - pMapping->GCPtr;
const unsigned iPT = off >> X86_PD_SHIFT;
const unsigned iPG = (off >> X86_PT_SHIFT) & X86_PT_MASK;
pVM->pgm.s.paDynPageMap32BitPTEsGC = pMapping->aPTs[iPT].pPTRC + iPG * sizeof(pMapping->aPTs[0].pPTR3->a[0]);
pVM->pgm.s.paDynPageMapPaePTEsGC = pMapping->aPTs[iPT].paPaePTsRC + iPG * sizeof(pMapping->aPTs[0].paPaePTsR3->a[0]);
/* init cache */
RTHCPHYS HCPhysDummy = MMR3PageDummyHCPhys(pVM);
for (unsigned i = 0; i < RT_ELEMENTS(pVM->pgm.s.aHCPhysDynPageMapCache); i++)
pVM->pgm.s.aHCPhysDynPageMapCache[i] = HCPhysDummy;
for (unsigned i = 0; i < MM_HYPER_DYNAMIC_SIZE; i += PAGE_SIZE)
{
rc = PGMMap(pVM, pVM->pgm.s.pbDynPageMapBaseGC + i, HCPhysDummy, PAGE_SIZE, 0);
AssertRCReturn(rc, rc);
}
/*
* Note that AMD uses all the 8 reserved bits for the address (so 40 bits in total);
* Intel only goes up to 36 bits, so we stick to 36 as well.
*/
/** @todo How to test for the 40 bits support? Long mode seems to be the test criterium. */
uint32_t u32Dummy, u32Features;
CPUMGetGuestCpuId(VMMGetCpu(pVM), 1, &u32Dummy, &u32Dummy, &u32Dummy, &u32Features);
if (u32Features & X86_CPUID_FEATURE_EDX_PSE36)
pVM->pgm.s.GCPhys4MBPSEMask = RT_BIT_64(36) - 1;
else
pVM->pgm.s.GCPhys4MBPSEMask = RT_BIT_64(32) - 1;
/*
* Allocate memory if we're supposed to do that.
*/
if (pVM->pgm.s.fRamPreAlloc)
rc = pgmR3PhysRamPreAllocate(pVM);
LogRel(("PGMR3InitFinalize: 4 MB PSE mask %RGp\n", pVM->pgm.s.GCPhys4MBPSEMask));
return rc;
}
/**
* Applies relocations to data and code managed by this component.
*
* This function will be called at init and whenever the VMM need to relocate it
* self inside the GC.
*
* @param pVM The VM.
* @param offDelta Relocation delta relative to old location.
*/
VMMR3DECL(void) PGMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
{
LogFlow(("PGMR3Relocate %RGv to %RGv\n", pVM->pgm.s.GCPtrCR3Mapping, pVM->pgm.s.GCPtrCR3Mapping + offDelta));
/*
* Paging stuff.
*/
pVM->pgm.s.GCPtrCR3Mapping += offDelta;
pgmR3ModeDataInit(pVM, true /* resolve GC/R0 symbols */);
/* Shadow, guest and both mode switch & relocation for each VCPU. */
for (VMCPUID i = 0; i < pVM->cCpus; i++)
{
PVMCPU pVCpu = &pVM->aCpus[i];
pgmR3ModeDataSwitch(pVM, pVCpu, pVCpu->pgm.s.enmShadowMode, pVCpu->pgm.s.enmGuestMode);
PGM_SHW_PFN(Relocate, pVCpu)(pVCpu, offDelta);
PGM_GST_PFN(Relocate, pVCpu)(pVCpu, offDelta);
PGM_BTH_PFN(Relocate, pVCpu)(pVCpu, offDelta);
}
/*
* Trees.
*/
pVM->pgm.s.pTreesRC = MMHyperR3ToRC(pVM, pVM->pgm.s.pTreesR3);
/*
* Ram ranges.
*/
if (pVM->pgm.s.pRamRangesR3)
{
/* Update the pSelfRC pointers and relink them. */
for (PPGMRAMRANGE pCur = pVM->pgm.s.pRamRangesR3; pCur; pCur = pCur->pNextR3)
if (!(pCur->fFlags & PGM_RAM_RANGE_FLAGS_FLOATING))
pCur->pSelfRC = MMHyperCCToRC(pVM, pCur);
pgmR3PhysRelinkRamRanges(pVM);
}
/*
* Update the pSelfRC pointer of the MMIO2 ram ranges since they might not
* be mapped and thus not included in the above exercise.
*/
for (PPGMMMIO2RANGE pCur = pVM->pgm.s.pMmio2RangesR3; pCur; pCur = pCur->pNextR3)
if (!(pCur->RamRange.fFlags & PGM_RAM_RANGE_FLAGS_FLOATING))
pCur->RamRange.pSelfRC = MMHyperCCToRC(pVM, &pCur->RamRange);
/*
* Update the two page directories with all page table mappings.
* (One or more of them have changed, that's why we're here.)
*/
pVM->pgm.s.pMappingsRC = MMHyperR3ToRC(pVM, pVM->pgm.s.pMappingsR3);
for (PPGMMAPPING pCur = pVM->pgm.s.pMappingsR3; pCur->pNextR3; pCur = pCur->pNextR3)
pCur->pNextRC = MMHyperR3ToRC(pVM, pCur->pNextR3);
/* Relocate GC addresses of Page Tables. */
for (PPGMMAPPING pCur = pVM->pgm.s.pMappingsR3; pCur; pCur = pCur->pNextR3)
{
for (RTHCUINT i = 0; i < pCur->cPTs; i++)
{
pCur->aPTs[i].pPTRC = MMHyperR3ToRC(pVM, pCur->aPTs[i].pPTR3);
pCur->aPTs[i].paPaePTsRC = MMHyperR3ToRC(pVM, pCur->aPTs[i].paPaePTsR3);
}
}
/*
* Dynamic page mapping area.
*/
pVM->pgm.s.paDynPageMap32BitPTEsGC += offDelta;
pVM->pgm.s.paDynPageMapPaePTEsGC += offDelta;
pVM->pgm.s.pbDynPageMapBaseGC += offDelta;
/*
* The Zero page.
*/
pVM->pgm.s.pvZeroPgR0 = MMHyperR3ToR0(pVM, pVM->pgm.s.pvZeroPgR3);
#ifdef VBOX_WITH_2X_4GB_ADDR_SPACE
AssertRelease(pVM->pgm.s.pvZeroPgR0 != NIL_RTR0PTR || !VMMIsHwVirtExtForced(pVM));
#else
AssertRelease(pVM->pgm.s.pvZeroPgR0 != NIL_RTR0PTR);
#endif
/*
* Physical and virtual handlers.
*/
RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysHandlers, true, pgmR3RelocatePhysHandler, &offDelta);
RTAvlroGCPtrDoWithAll(&pVM->pgm.s.pTreesR3->VirtHandlers, true, pgmR3RelocateVirtHandler, &offDelta);
RTAvlroGCPtrDoWithAll(&pVM->pgm.s.pTreesR3->HyperVirtHandlers, true, pgmR3RelocateHyperVirtHandler, &offDelta);
/*
* The page pool.
*/
pgmR3PoolRelocate(pVM);
}
/**
* Callback function for relocating a physical access handler.
*
* @returns 0 (continue enum)
* @param pNode Pointer to a PGMPHYSHANDLER node.
* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
* not certain the delta will fit in a void pointer for all possible configs.
*/
static DECLCALLBACK(int) pgmR3RelocatePhysHandler(PAVLROGCPHYSNODECORE pNode, void *pvUser)
{
PPGMPHYSHANDLER pHandler = (PPGMPHYSHANDLER)pNode;
RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
if (pHandler->pfnHandlerRC)
pHandler->pfnHandlerRC += offDelta;
if (pHandler->pvUserRC >= 0x10000)
pHandler->pvUserRC += offDelta;
return 0;
}
/**
* Callback function for relocating a virtual access handler.
*
* @returns 0 (continue enum)
* @param pNode Pointer to a PGMVIRTHANDLER node.
* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
* not certain the delta will fit in a void pointer for all possible configs.
*/
static DECLCALLBACK(int) pgmR3RelocateVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser)
{
PPGMVIRTHANDLER pHandler = (PPGMVIRTHANDLER)pNode;
RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
Assert( pHandler->enmType == PGMVIRTHANDLERTYPE_ALL
|| pHandler->enmType == PGMVIRTHANDLERTYPE_WRITE);
Assert(pHandler->pfnHandlerRC);
pHandler->pfnHandlerRC += offDelta;
return 0;
}
/**
* Callback function for relocating a virtual access handler for the hypervisor mapping.
*
* @returns 0 (continue enum)
* @param pNode Pointer to a PGMVIRTHANDLER node.
* @param pvUser Pointer to the offDelta. This is a pointer to the delta since we're
* not certain the delta will fit in a void pointer for all possible configs.
*/
static DECLCALLBACK(int) pgmR3RelocateHyperVirtHandler(PAVLROGCPTRNODECORE pNode, void *pvUser)
{
PPGMVIRTHANDLER pHandler = (PPGMVIRTHANDLER)pNode;
RTGCINTPTR offDelta = *(PRTGCINTPTR)pvUser;
Assert(pHandler->enmType == PGMVIRTHANDLERTYPE_HYPERVISOR);
Assert(pHandler->pfnHandlerRC);
pHandler->pfnHandlerRC += offDelta;
return 0;
}
/**
* Resets a virtual CPU when unplugged.
*
* @param pVM The VM handle.
* @param pVCpu The virtual CPU handle.
*/
VMMR3DECL(void) PGMR3ResetUnpluggedCpu(PVM pVM, PVMCPU pVCpu)
{
int rc = PGM_GST_PFN(Exit, pVCpu)(pVCpu);
AssertRC(rc);
rc = PGMR3ChangeMode(pVM, pVCpu, PGMMODE_REAL);
AssertRC(rc);
STAM_REL_COUNTER_RESET(&pVCpu->pgm.s.cGuestModeChanges);
pgmR3PoolResetUnpluggedCpu(pVM, pVCpu);
/*
* Re-init other members.
*/
pVCpu->pgm.s.fA20Enabled = true;
/*
* Clear the FFs PGM owns.
*/
VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL);
}
/**
* The VM is being reset.
*
* For the PGM component this means that any PD write monitors
* needs to be removed.
*
* @param pVM VM handle.
*/
VMMR3DECL(void) PGMR3Reset(PVM pVM)
{
int rc;
LogFlow(("PGMR3Reset:\n"));
VM_ASSERT_EMT(pVM);
pgmLock(pVM);
/*
* Unfix any fixed mappings and disable CR3 monitoring.
*/
pVM->pgm.s.fMappingsFixed = false;
pVM->pgm.s.fMappingsFixedRestored = false;
pVM->pgm.s.GCPtrMappingFixed = NIL_RTGCPTR;
pVM->pgm.s.cbMappingFixed = 0;
/*
* Exit the guest paging mode before the pgm pool gets reset.
* Important to clean up the amd64 case.
*/
for (VMCPUID i = 0; i < pVM->cCpus; i++)
{
PVMCPU pVCpu = &pVM->aCpus[i];
rc = PGM_GST_PFN(Exit, pVCpu)(pVCpu);
AssertRC(rc);
}
#ifdef DEBUG
DBGFR3InfoLog(pVM, "mappings", NULL);
DBGFR3InfoLog(pVM, "handlers", "all nostat");
#endif
/*
* Switch mode back to real mode. (before resetting the pgm pool!)
*/
for (VMCPUID i = 0; i < pVM->cCpus; i++)
{
PVMCPU pVCpu = &pVM->aCpus[i];
rc = PGMR3ChangeMode(pVM, pVCpu, PGMMODE_REAL);
AssertRC(rc);
STAM_REL_COUNTER_RESET(&pVCpu->pgm.s.cGuestModeChanges);
}
/*
* Reset the shadow page pool.
*/
pgmR3PoolReset(pVM);
for (VMCPUID i = 0; i < pVM->cCpus; i++)
{
PVMCPU pVCpu = &pVM->aCpus[i];
/*
* Re-init other members.
*/
pVCpu->pgm.s.fA20Enabled = true;
/*
* Clear the FFs PGM owns.
*/
VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL);
}
/*
* Reset (zero) RAM pages.
*/
rc = pgmR3PhysRamReset(pVM);
if (RT_SUCCESS(rc))
{
/*
* Reset (zero) shadow ROM pages.
*/
rc = pgmR3PhysRomReset(pVM);
}
pgmUnlock(pVM);
AssertReleaseRC(rc);
}
#ifdef VBOX_STRICT
/**
* VM state change callback for clearing fNoMorePhysWrites after
* a snapshot has been created.
*/
static DECLCALLBACK(void) pgmR3ResetNoMorePhysWritesFlag(PVM pVM, VMSTATE enmState, VMSTATE enmOldState, void *pvUser)
{
if ( enmState == VMSTATE_RUNNING
|| enmState == VMSTATE_RESUMING)
pVM->pgm.s.fNoMorePhysWrites = false;
}
#endif
/**
* Terminates the PGM.
*
* @returns VBox status code.
* @param pVM Pointer to VM structure.
*/
VMMR3DECL(int) PGMR3Term(PVM pVM)
{
/* Must free shared pages here. */
pgmLock(pVM);
pgmR3PhysRamTerm(pVM);
pgmUnlock(pVM);
PGMDeregisterStringFormatTypes();
return PDMR3CritSectDelete(&pVM->pgm.s.CritSect);
}
/**
* Terminates the per-VCPU PGM.
*
* Termination means cleaning up and freeing all resources,
* the VM it self is at this point powered off or suspended.
*
* @returns VBox status code.
* @param pVM The VM to operate on.
*/
VMMR3DECL(int) PGMR3TermCPU(PVM pVM)
{
return 0;
}
/**
* Show paging mode.
*
* @param pVM VM Handle.
* @param pHlp The info helpers.
* @param pszArgs "all" (default), "guest", "shadow" or "host".
*/
static DECLCALLBACK(void) pgmR3InfoMode(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
{
/* digest argument. */
bool fGuest, fShadow, fHost;
if (pszArgs)
pszArgs = RTStrStripL(pszArgs);
if (!pszArgs || !*pszArgs || strstr(pszArgs, "all"))
fShadow = fHost = fGuest = true;
else
{
fShadow = fHost = fGuest = false;
if (strstr(pszArgs, "guest"))
fGuest = true;
if (strstr(pszArgs, "shadow"))
fShadow = true;
if (strstr(pszArgs, "host"))
fHost = true;
}
/** @todo SMP support! */
/* print info. */
if (fGuest)
pHlp->pfnPrintf(pHlp, "Guest paging mode: %s, changed %RU64 times, A20 %s\n",
PGMGetModeName(pVM->aCpus[0].pgm.s.enmGuestMode), pVM->aCpus[0].pgm.s.cGuestModeChanges.c,
pVM->aCpus[0].pgm.s.fA20Enabled ? "enabled" : "disabled");
if (fShadow)
pHlp->pfnPrintf(pHlp, "Shadow paging mode: %s\n", PGMGetModeName(pVM->aCpus[0].pgm.s.enmShadowMode));
if (fHost)
{
const char *psz;
switch (pVM->pgm.s.enmHostMode)
{
case SUPPAGINGMODE_INVALID: psz = "invalid"; break;
case SUPPAGINGMODE_32_BIT: psz = "32-bit"; break;
case SUPPAGINGMODE_32_BIT_GLOBAL: psz = "32-bit+G"; break;
case SUPPAGINGMODE_PAE: psz = "PAE"; break;
case SUPPAGINGMODE_PAE_GLOBAL: psz = "PAE+G"; break;
case SUPPAGINGMODE_PAE_NX: psz = "PAE+NX"; break;
case SUPPAGINGMODE_PAE_GLOBAL_NX: psz = "PAE+G+NX"; break;
case SUPPAGINGMODE_AMD64: psz = "AMD64"; break;
case SUPPAGINGMODE_AMD64_GLOBAL: psz = "AMD64+G"; break;
case SUPPAGINGMODE_AMD64_NX: psz = "AMD64+NX"; break;
case SUPPAGINGMODE_AMD64_GLOBAL_NX: psz = "AMD64+G+NX"; break;
default: psz = "unknown"; break;
}
pHlp->pfnPrintf(pHlp, "Host paging mode: %s\n", psz);
}
}
/**
* Dump registered MMIO ranges to the log.
*
* @param pVM VM Handle.
* @param pHlp The info helpers.
* @param pszArgs Arguments, ignored.
*/
static DECLCALLBACK(void) pgmR3PhysInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
{
NOREF(pszArgs);
pHlp->pfnPrintf(pHlp,
"RAM ranges (pVM=%p)\n"
"%.*s %.*s\n",
pVM,
sizeof(RTGCPHYS) * 4 + 1, "GC Phys Range ",
sizeof(RTHCPTR) * 2, "pvHC ");
for (PPGMRAMRANGE pCur = pVM->pgm.s.pRamRangesR3; pCur; pCur = pCur->pNextR3)
pHlp->pfnPrintf(pHlp,
"%RGp-%RGp %RHv %s\n",
pCur->GCPhys,
pCur->GCPhysLast,
pCur->pvR3,
pCur->pszDesc);
}
/**
* Dump the page directory to the log.
*
* @param pVM VM Handle.
* @param pHlp The info helpers.
* @param pszArgs Arguments, ignored.
*/
static DECLCALLBACK(void) pgmR3InfoCr3(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
{
/** @todo SMP support!! */
PVMCPU pVCpu = &pVM->aCpus[0];
/** @todo fix this! Convert the PGMR3DumpHierarchyHC functions to do guest stuff. */
/* Big pages supported? */
const bool fPSE = !!(CPUMGetGuestCR4(pVCpu) & X86_CR4_PSE);
/* Global pages supported? */
const bool fPGE = !!(CPUMGetGuestCR4(pVCpu) & X86_CR4_PGE);
NOREF(pszArgs);
/*
* Get page directory addresses.
*/
PX86PD pPDSrc = pgmGstGet32bitPDPtr(&pVCpu->pgm.s);
Assert(pPDSrc);
Assert(PGMPhysGCPhys2R3PtrAssert(pVM, (RTGCPHYS)(CPUMGetGuestCR3(pVCpu) & X86_CR3_PAGE_MASK), sizeof(*pPDSrc)) == pPDSrc);
/*
* Iterate the page directory.
*/
for (unsigned iPD = 0; iPD < RT_ELEMENTS(pPDSrc->a); iPD++)
{
X86PDE PdeSrc = pPDSrc->a[iPD];
if (PdeSrc.n.u1Present)
{
if (PdeSrc.b.u1Size && fPSE)
pHlp->pfnPrintf(pHlp,
"%04X - %RGp P=%d U=%d RW=%d G=%d - BIG\n",
iPD,
pgmGstGet4MBPhysPage(&pVM->pgm.s, PdeSrc),
PdeSrc.b.u1Present, PdeSrc.b.u1User, PdeSrc.b.u1Write, PdeSrc.b.u1Global && fPGE);
else
pHlp->pfnPrintf(pHlp,
"%04X - %RGp P=%d U=%d RW=%d [G=%d]\n",
iPD,
(RTGCPHYS)(PdeSrc.u & X86_PDE_PG_MASK),
PdeSrc.n.u1Present, PdeSrc.n.u1User, PdeSrc.n.u1Write, PdeSrc.b.u1Global && fPGE);
}
}
}
/**
* Service a VMMCALLRING3_PGM_LOCK call.
*
* @returns VBox status code.
* @param pVM The VM handle.
*/
VMMR3DECL(int) PGMR3LockCall(PVM pVM)
{
int rc = PDMR3CritSectEnterEx(&pVM->pgm.s.CritSect, true /* fHostCall */);
AssertRC(rc);
return rc;
}
/**
* Converts a PGMMODE value to a PGM_TYPE_* \#define.
*
* @returns PGM_TYPE_*.
* @param pgmMode The mode value to convert.
*/
DECLINLINE(unsigned) pgmModeToType(PGMMODE pgmMode)
{
switch (pgmMode)
{
case PGMMODE_REAL: return PGM_TYPE_REAL;
case PGMMODE_PROTECTED: return PGM_TYPE_PROT;
case PGMMODE_32_BIT: return PGM_TYPE_32BIT;
case PGMMODE_PAE:
case PGMMODE_PAE_NX: return PGM_TYPE_PAE;
case PGMMODE_AMD64:
case PGMMODE_AMD64_NX: return PGM_TYPE_AMD64;
case PGMMODE_NESTED: return PGM_TYPE_NESTED;
case PGMMODE_EPT: return PGM_TYPE_EPT;
default:
AssertFatalMsgFailed(("pgmMode=%d\n", pgmMode));
}
}
/**
* Gets the index into the paging mode data array of a SHW+GST mode.
*
* @returns PGM::paPagingData index.
* @param uShwType The shadow paging mode type.
* @param uGstType The guest paging mode type.
*/
DECLINLINE(unsigned) pgmModeDataIndex(unsigned uShwType, unsigned uGstType)
{
Assert(uShwType >= PGM_TYPE_32BIT && uShwType <= PGM_TYPE_MAX);
Assert(uGstType >= PGM_TYPE_REAL && uGstType <= PGM_TYPE_AMD64);
return (uShwType - PGM_TYPE_32BIT) * (PGM_TYPE_AMD64 - PGM_TYPE_REAL + 1)
+ (uGstType - PGM_TYPE_REAL);
}
/**
* Gets the index into the paging mode data array of a SHW+GST mode.
*
* @returns PGM::paPagingData index.
* @param enmShw The shadow paging mode.
* @param enmGst The guest paging mode.
*/
DECLINLINE(unsigned) pgmModeDataIndexByMode(PGMMODE enmShw, PGMMODE enmGst)
{
Assert(enmShw >= PGMMODE_32_BIT && enmShw <= PGMMODE_MAX);
Assert(enmGst > PGMMODE_INVALID && enmGst < PGMMODE_MAX);
return pgmModeDataIndex(pgmModeToType(enmShw), pgmModeToType(enmGst));
}
/**
* Calculates the max data index.
* @returns The number of entries in the paging data array.
*/
DECLINLINE(unsigned) pgmModeDataMaxIndex(void)
{
return pgmModeDataIndex(PGM_TYPE_MAX, PGM_TYPE_AMD64) + 1;
}
/**
* Initializes the paging mode data kept in PGM::paModeData.
*
* @param pVM The VM handle.
* @param fResolveGCAndR0 Indicate whether or not GC and Ring-0 symbols can be resolved now.
* This is used early in the init process to avoid trouble with PDM
* not being initialized yet.
*/
static int pgmR3ModeDataInit(PVM pVM, bool fResolveGCAndR0)
{
PPGMMODEDATA pModeData;
int rc;
/*
* Allocate the array on the first call.
*/
if (!pVM->pgm.s.paModeData)
{
pVM->pgm.s.paModeData = (PPGMMODEDATA)MMR3HeapAllocZ(pVM, MM_TAG_PGM, sizeof(PGMMODEDATA) * pgmModeDataMaxIndex());
AssertReturn(pVM->pgm.s.paModeData, VERR_NO_MEMORY);
}
/*
* Initialize the array entries.
*/
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGM_TYPE_REAL)];
pModeData->uShwType = PGM_TYPE_32BIT;
pModeData->uGstType = PGM_TYPE_REAL;
rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_32BIT_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGMMODE_PROTECTED)];
pModeData->uShwType = PGM_TYPE_32BIT;
pModeData->uGstType = PGM_TYPE_PROT;
rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_32BIT_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_32BIT, PGM_TYPE_32BIT)];
pModeData->uShwType = PGM_TYPE_32BIT;
pModeData->uGstType = PGM_TYPE_32BIT;
rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_32BIT_32BIT(InitData)(pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_REAL)];
pModeData->uShwType = PGM_TYPE_PAE;
pModeData->uGstType = PGM_TYPE_REAL;
rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_PAE_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_PROT)];
pModeData->uShwType = PGM_TYPE_PAE;
pModeData->uGstType = PGM_TYPE_PROT;
rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_PAE_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_32BIT)];
pModeData->uShwType = PGM_TYPE_PAE;
pModeData->uGstType = PGM_TYPE_32BIT;
rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_PAE_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_PAE, PGM_TYPE_PAE)];
pModeData->uShwType = PGM_TYPE_PAE;
pModeData->uGstType = PGM_TYPE_PAE;
rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_GST_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_PAE_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
#ifdef VBOX_WITH_64_BITS_GUESTS
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_AMD64, PGM_TYPE_AMD64)];
pModeData->uShwType = PGM_TYPE_AMD64;
pModeData->uGstType = PGM_TYPE_AMD64;
rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_GST_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_AMD64_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
#endif
/* The nested paging mode. */
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_REAL)];
pModeData->uShwType = PGM_TYPE_NESTED;
pModeData->uGstType = PGM_TYPE_REAL;
rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_NESTED_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGMMODE_PROTECTED)];
pModeData->uShwType = PGM_TYPE_NESTED;
pModeData->uGstType = PGM_TYPE_PROT;
rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_NESTED_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_32BIT)];
pModeData->uShwType = PGM_TYPE_NESTED;
pModeData->uGstType = PGM_TYPE_32BIT;
rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_NESTED_32BIT(InitData)(pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_PAE)];
pModeData->uShwType = PGM_TYPE_NESTED;
pModeData->uGstType = PGM_TYPE_PAE;
rc = PGM_GST_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_NESTED_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
#ifdef VBOX_WITH_64_BITS_GUESTS
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_AMD64)];
pModeData->uShwType = PGM_TYPE_NESTED;
pModeData->uGstType = PGM_TYPE_AMD64;
rc = PGM_GST_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_NESTED_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
#endif
/* The shadow part of the nested callback mode depends on the host paging mode (AMD-V only). */
switch (pVM->pgm.s.enmHostMode)
{
#if HC_ARCH_BITS == 32
case SUPPAGINGMODE_32_BIT:
case SUPPAGINGMODE_32_BIT_GLOBAL:
for (unsigned i = PGM_TYPE_REAL; i <= PGM_TYPE_PAE; i++)
{
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, i)];
rc = PGM_SHW_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
}
# ifdef VBOX_WITH_64_BITS_GUESTS
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_AMD64)];
rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
# endif
break;
case SUPPAGINGMODE_PAE:
case SUPPAGINGMODE_PAE_NX:
case SUPPAGINGMODE_PAE_GLOBAL:
case SUPPAGINGMODE_PAE_GLOBAL_NX:
for (unsigned i = PGM_TYPE_REAL; i <= PGM_TYPE_PAE; i++)
{
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, i)];
rc = PGM_SHW_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
}
# ifdef VBOX_WITH_64_BITS_GUESTS
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, PGM_TYPE_AMD64)];
rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
# endif
break;
#endif /* HC_ARCH_BITS == 32 */
#if HC_ARCH_BITS == 64 || defined(RT_OS_DARWIN)
case SUPPAGINGMODE_AMD64:
case SUPPAGINGMODE_AMD64_GLOBAL:
case SUPPAGINGMODE_AMD64_NX:
case SUPPAGINGMODE_AMD64_GLOBAL_NX:
# ifdef VBOX_WITH_64_BITS_GUESTS
for (unsigned i = PGM_TYPE_REAL; i <= PGM_TYPE_AMD64; i++)
# else
for (unsigned i = PGM_TYPE_REAL; i <= PGM_TYPE_PAE; i++)
# endif
{
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_NESTED, i)];
rc = PGM_SHW_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
}
break;
#endif /* HC_ARCH_BITS == 64 || RT_OS_DARWIN */
default:
AssertFailed();
break;
}
/* Extended paging (EPT) / Intel VT-x */
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_REAL)];
pModeData->uShwType = PGM_TYPE_EPT;
pModeData->uGstType = PGM_TYPE_REAL;
rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_GST_NAME_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_EPT_REAL(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_PROT)];
pModeData->uShwType = PGM_TYPE_EPT;
pModeData->uGstType = PGM_TYPE_PROT;
rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_GST_NAME_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_EPT_PROT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_32BIT)];
pModeData->uShwType = PGM_TYPE_EPT;
pModeData->uGstType = PGM_TYPE_32BIT;
rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_GST_NAME_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_EPT_32BIT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_PAE)];
pModeData->uShwType = PGM_TYPE_EPT;
pModeData->uGstType = PGM_TYPE_PAE;
rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_GST_NAME_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_EPT_PAE(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
#ifdef VBOX_WITH_64_BITS_GUESTS
pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndex(PGM_TYPE_EPT, PGM_TYPE_AMD64)];
pModeData->uShwType = PGM_TYPE_EPT;
pModeData->uGstType = PGM_TYPE_AMD64;
rc = PGM_SHW_NAME_EPT(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_GST_NAME_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
rc = PGM_BTH_NAME_EPT_AMD64(InitData)( pVM, pModeData, fResolveGCAndR0); AssertRCReturn(rc, rc);
#endif
return VINF_SUCCESS;
}
/**
* Switch to different (or relocated in the relocate case) mode data.
*
* @param pVM The VM handle.
* @param pVCpu The VMCPU to operate on.
* @param enmShw The the shadow paging mode.
* @param enmGst The the guest paging mode.
*/
static void pgmR3ModeDataSwitch(PVM pVM, PVMCPU pVCpu, PGMMODE enmShw, PGMMODE enmGst)
{
PPGMMODEDATA pModeData = &pVM->pgm.s.paModeData[pgmModeDataIndexByMode(enmShw, enmGst)];
Assert(pModeData->uGstType == pgmModeToType(enmGst));
Assert(pModeData->uShwType == pgmModeToType(enmShw));
/* shadow */
pVCpu->pgm.s.pfnR3ShwRelocate = pModeData->pfnR3ShwRelocate;
pVCpu->pgm.s.pfnR3ShwExit = pModeData->pfnR3ShwExit;
pVCpu->pgm.s.pfnR3ShwGetPage = pModeData->pfnR3ShwGetPage;
Assert(pVCpu->pgm.s.pfnR3ShwGetPage);
pVCpu->pgm.s.pfnR3ShwModifyPage = pModeData->pfnR3ShwModifyPage;
pVCpu->pgm.s.pfnRCShwGetPage = pModeData->pfnRCShwGetPage;
pVCpu->pgm.s.pfnRCShwModifyPage = pModeData->pfnRCShwModifyPage;
pVCpu->pgm.s.pfnR0ShwGetPage = pModeData->pfnR0ShwGetPage;
pVCpu->pgm.s.pfnR0ShwModifyPage = pModeData->pfnR0ShwModifyPage;
/* guest */
pVCpu->pgm.s.pfnR3GstRelocate = pModeData->pfnR3GstRelocate;
pVCpu->pgm.s.pfnR3GstExit = pModeData->pfnR3GstExit;
pVCpu->pgm.s.pfnR3GstGetPage = pModeData->pfnR3GstGetPage;
Assert(pVCpu->pgm.s.pfnR3GstGetPage);
pVCpu->pgm.s.pfnR3GstModifyPage = pModeData->pfnR3GstModifyPage;
pVCpu->pgm.s.pfnR3GstGetPDE = pModeData->pfnR3GstGetPDE;
pVCpu->pgm.s.pfnRCGstGetPage = pModeData->pfnRCGstGetPage;
pVCpu->pgm.s.pfnRCGstModifyPage = pModeData->pfnRCGstModifyPage;
pVCpu->pgm.s.pfnRCGstGetPDE = pModeData->pfnRCGstGetPDE;
pVCpu->pgm.s.pfnR0GstGetPage = pModeData->pfnR0GstGetPage;
pVCpu->pgm.s.pfnR0GstModifyPage = pModeData->pfnR0GstModifyPage;
pVCpu->pgm.s.pfnR0GstGetPDE = pModeData->pfnR0GstGetPDE;
/* both */
pVCpu->pgm.s.pfnR3BthRelocate = pModeData->pfnR3BthRelocate;
pVCpu->pgm.s.pfnR3BthInvalidatePage = pModeData->pfnR3BthInvalidatePage;
pVCpu->pgm.s.pfnR3BthSyncCR3 = pModeData->pfnR3BthSyncCR3;
Assert(pVCpu->pgm.s.pfnR3BthSyncCR3);
pVCpu->pgm.s.pfnR3BthSyncPage = pModeData->pfnR3BthSyncPage;
pVCpu->pgm.s.pfnR3BthPrefetchPage = pModeData->pfnR3BthPrefetchPage;
pVCpu->pgm.s.pfnR3BthVerifyAccessSyncPage = pModeData->pfnR3BthVerifyAccessSyncPage;
#ifdef VBOX_STRICT
pVCpu->pgm.s.pfnR3BthAssertCR3 = pModeData->pfnR3BthAssertCR3;
#endif
pVCpu->pgm.s.pfnR3BthMapCR3 = pModeData->pfnR3BthMapCR3;
pVCpu->pgm.s.pfnR3BthUnmapCR3 = pModeData->pfnR3BthUnmapCR3;
pVCpu->pgm.s.pfnRCBthTrap0eHandler = pModeData->pfnRCBthTrap0eHandler;
pVCpu->pgm.s.pfnRCBthInvalidatePage = pModeData->pfnRCBthInvalidatePage;
pVCpu->pgm.s.pfnRCBthSyncCR3 = pModeData->pfnRCBthSyncCR3;
pVCpu->pgm.s.pfnRCBthSyncPage = pModeData->pfnRCBthSyncPage;
pVCpu->pgm.s.pfnRCBthPrefetchPage = pModeData->pfnRCBthPrefetchPage;
pVCpu->pgm.s.pfnRCBthVerifyAccessSyncPage = pModeData->pfnRCBthVerifyAccessSyncPage;
#ifdef VBOX_STRICT
pVCpu->pgm.s.pfnRCBthAssertCR3 = pModeData->pfnRCBthAssertCR3;
#endif
pVCpu->pgm.s.pfnRCBthMapCR3 = pModeData->pfnRCBthMapCR3;
pVCpu->pgm.s.pfnRCBthUnmapCR3 = pModeData->pfnRCBthUnmapCR3;
pVCpu->pgm.s.pfnR0BthTrap0eHandler = pModeData->pfnR0BthTrap0eHandler;
pVCpu->pgm.s.pfnR0BthInvalidatePage = pModeData->pfnR0BthInvalidatePage;
pVCpu->pgm.s.pfnR0BthSyncCR3 = pModeData->pfnR0BthSyncCR3;
pVCpu->pgm.s.pfnR0BthSyncPage = pModeData->pfnR0BthSyncPage;
pVCpu->pgm.s.pfnR0BthPrefetchPage = pModeData->pfnR0BthPrefetchPage;
pVCpu->pgm.s.pfnR0BthVerifyAccessSyncPage = pModeData->pfnR0BthVerifyAccessSyncPage;
#ifdef VBOX_STRICT
pVCpu->pgm.s.pfnR0BthAssertCR3 = pModeData->pfnR0BthAssertCR3;
#endif
pVCpu->pgm.s.pfnR0BthMapCR3 = pModeData->pfnR0BthMapCR3;
pVCpu->pgm.s.pfnR0BthUnmapCR3 = pModeData->pfnR0BthUnmapCR3;
}
/**
* Calculates the shadow paging mode.
*
* @returns The shadow paging mode.
* @param pVM VM handle.
* @param enmGuestMode The guest mode.
* @param enmHostMode The host mode.
* @param enmShadowMode The current shadow mode.
* @param penmSwitcher Where to store the switcher to use.
* VMMSWITCHER_INVALID means no change.
*/
static PGMMODE pgmR3CalcShadowMode(PVM pVM, PGMMODE enmGuestMode, SUPPAGINGMODE enmHostMode, PGMMODE enmShadowMode, VMMSWITCHER *penmSwitcher)
{
VMMSWITCHER enmSwitcher = VMMSWITCHER_INVALID;
switch (enmGuestMode)
{
/*
* When switching to real or protected mode we don't change
* anything since it's likely that we'll switch back pretty soon.
*
* During pgmR3InitPaging we'll end up here with PGMMODE_INVALID
* and is supposed to determine which shadow paging and switcher to
* use during init.
*/
case PGMMODE_REAL:
case PGMMODE_PROTECTED:
if ( enmShadowMode != PGMMODE_INVALID
&& !HWACCMIsEnabled(pVM) /* always switch in hwaccm mode! */)
break; /* (no change) */
switch (enmHostMode)
{
case SUPPAGINGMODE_32_BIT:
case SUPPAGINGMODE_32_BIT_GLOBAL:
enmShadowMode = PGMMODE_32_BIT;
enmSwitcher = VMMSWITCHER_32_TO_32;
break;
case SUPPAGINGMODE_PAE:
case SUPPAGINGMODE_PAE_NX:
case SUPPAGINGMODE_PAE_GLOBAL:
case SUPPAGINGMODE_PAE_GLOBAL_NX:
enmShadowMode = PGMMODE_PAE;
enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
#ifdef DEBUG_bird
if (RTEnvExist("VBOX_32BIT"))
{
enmShadowMode = PGMMODE_32_BIT;
enmSwitcher = VMMSWITCHER_PAE_TO_32;
}
#endif
break;
case SUPPAGINGMODE_AMD64:
case SUPPAGINGMODE_AMD64_GLOBAL:
case SUPPAGINGMODE_AMD64_NX:
case SUPPAGINGMODE_AMD64_GLOBAL_NX:
enmShadowMode = PGMMODE_PAE;
enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
#ifdef DEBUG_bird
if (RTEnvExist("VBOX_32BIT"))
{
enmShadowMode = PGMMODE_32_BIT;
enmSwitcher = VMMSWITCHER_AMD64_TO_32;
}
#endif
break;
default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
}
break;
case PGMMODE_32_BIT:
switch (enmHostMode)
{
case SUPPAGINGMODE_32_BIT:
case SUPPAGINGMODE_32_BIT_GLOBAL:
enmShadowMode = PGMMODE_32_BIT;
enmSwitcher = VMMSWITCHER_32_TO_32;
break;
case SUPPAGINGMODE_PAE:
case SUPPAGINGMODE_PAE_NX:
case SUPPAGINGMODE_PAE_GLOBAL:
case SUPPAGINGMODE_PAE_GLOBAL_NX:
enmShadowMode = PGMMODE_PAE;
enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
#ifdef DEBUG_bird
if (RTEnvExist("VBOX_32BIT"))
{
enmShadowMode = PGMMODE_32_BIT;
enmSwitcher = VMMSWITCHER_PAE_TO_32;
}
#endif
break;
case SUPPAGINGMODE_AMD64:
case SUPPAGINGMODE_AMD64_GLOBAL:
case SUPPAGINGMODE_AMD64_NX:
case SUPPAGINGMODE_AMD64_GLOBAL_NX:
enmShadowMode = PGMMODE_PAE;
enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
#ifdef DEBUG_bird
if (RTEnvExist("VBOX_32BIT"))
{
enmShadowMode = PGMMODE_32_BIT;
enmSwitcher = VMMSWITCHER_AMD64_TO_32;
}
#endif
break;
default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
}
break;
case PGMMODE_PAE:
case PGMMODE_PAE_NX: /** @todo This might require more switchers and guest+both modes. */
switch (enmHostMode)
{
case SUPPAGINGMODE_32_BIT:
case SUPPAGINGMODE_32_BIT_GLOBAL:
enmShadowMode = PGMMODE_PAE;
enmSwitcher = VMMSWITCHER_32_TO_PAE;
break;
case SUPPAGINGMODE_PAE:
case SUPPAGINGMODE_PAE_NX:
case SUPPAGINGMODE_PAE_GLOBAL:
case SUPPAGINGMODE_PAE_GLOBAL_NX:
enmShadowMode = PGMMODE_PAE;
enmSwitcher = VMMSWITCHER_PAE_TO_PAE;
break;
case SUPPAGINGMODE_AMD64:
case SUPPAGINGMODE_AMD64_GLOBAL:
case SUPPAGINGMODE_AMD64_NX:
case SUPPAGINGMODE_AMD64_GLOBAL_NX:
enmShadowMode = PGMMODE_PAE;
enmSwitcher = VMMSWITCHER_AMD64_TO_PAE;
break;
default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
}
break;
case PGMMODE_AMD64:
case PGMMODE_AMD64_NX:
switch (enmHostMode)
{
case SUPPAGINGMODE_32_BIT:
case SUPPAGINGMODE_32_BIT_GLOBAL:
enmShadowMode = PGMMODE_AMD64;
enmSwitcher = VMMSWITCHER_32_TO_AMD64;
break;
case SUPPAGINGMODE_PAE:
case SUPPAGINGMODE_PAE_NX:
case SUPPAGINGMODE_PAE_GLOBAL:
case SUPPAGINGMODE_PAE_GLOBAL_NX:
enmShadowMode = PGMMODE_AMD64;
enmSwitcher = VMMSWITCHER_PAE_TO_AMD64;
break;
case SUPPAGINGMODE_AMD64:
case SUPPAGINGMODE_AMD64_GLOBAL:
case SUPPAGINGMODE_AMD64_NX:
case SUPPAGINGMODE_AMD64_GLOBAL_NX:
enmShadowMode = PGMMODE_AMD64;
enmSwitcher = VMMSWITCHER_AMD64_TO_AMD64;
break;
default: AssertMsgFailed(("enmHostMode=%d\n", enmHostMode)); break;
}
break;
default:
AssertReleaseMsgFailed(("enmGuestMode=%d\n", enmGuestMode));
*penmSwitcher = VMMSWITCHER_INVALID;
return PGMMODE_INVALID;
}
/* Override the shadow mode is nested paging is active. */
if (HWACCMIsNestedPagingActive(pVM))
enmShadowMode = HWACCMGetShwPagingMode(pVM);
*penmSwitcher = enmSwitcher;
return enmShadowMode;
}
/**
* Performs the actual mode change.
* This is called by PGMChangeMode and pgmR3InitPaging().
*
* @returns VBox status code. May suspend or power off the VM on error, but this
* will trigger using FFs and not status codes.
*
* @param pVM VM handle.
* @param pVCpu The VMCPU to operate on.
* @param enmGuestMode The new guest mode. This is assumed to be different from
* the current mode.
*/
VMMR3DECL(int) PGMR3ChangeMode(PVM pVM, PVMCPU pVCpu, PGMMODE enmGuestMode)
{
bool fIsOldGuestPagingMode64Bits = (pVCpu->pgm.s.enmGuestMode >= PGMMODE_AMD64);
bool fIsNewGuestPagingMode64Bits = (enmGuestMode >= PGMMODE_AMD64);
Log(("PGMR3ChangeMode: Guest mode: %s -> %s\n", PGMGetModeName(pVCpu->pgm.s.enmGuestMode), PGMGetModeName(enmGuestMode)));
STAM_REL_COUNTER_INC(&pVCpu->pgm.s.cGuestModeChanges);
/*
* Calc the shadow mode and switcher.
*/
VMMSWITCHER enmSwitcher;
PGMMODE enmShadowMode = pgmR3CalcShadowMode(pVM, enmGuestMode, pVM->pgm.s.enmHostMode, pVCpu->pgm.s.enmShadowMode, &enmSwitcher);
#ifdef VBOX_WITH_RAW_MODE
if (enmSwitcher != VMMSWITCHER_INVALID)
{
/*
* Select new switcher.
*/
int rc = VMMR3SelectSwitcher(pVM, enmSwitcher);
if (RT_FAILURE(rc))
{
AssertReleaseMsgFailed(("VMMR3SelectSwitcher(%d) -> %Rrc\n", enmSwitcher, rc));
return rc;
}
}
#endif
/*
* Exit old mode(s).
*/
#if HC_ARCH_BITS == 32
/* The nested shadow paging mode for AMD-V does change when running 64 bits guests on 32 bits hosts; typically PAE <-> AMD64 */
const bool fForceShwEnterExit = ( fIsOldGuestPagingMode64Bits != fIsNewGuestPagingMode64Bits
&& enmShadowMode == PGMMODE_NESTED);
#else
const bool fForceShwEnterExit = false;
#endif
/* shadow */
if ( enmShadowMode != pVCpu->pgm.s.enmShadowMode
|| fForceShwEnterExit)
{
LogFlow(("PGMR3ChangeMode: Shadow mode: %s -> %s\n", PGMGetModeName(pVCpu->pgm.s.enmShadowMode), PGMGetModeName(enmShadowMode)));
if (PGM_SHW_PFN(Exit, pVCpu))
{
int rc = PGM_SHW_PFN(Exit, pVCpu)(pVCpu);
if (RT_FAILURE(rc))
{
AssertMsgFailed(("Exit failed for shadow mode %d: %Rrc\n", pVCpu->pgm.s.enmShadowMode, rc));
return rc;
}
}
}
else
LogFlow(("PGMR3ChangeMode: Shadow mode remains: %s\n", PGMGetModeName(pVCpu->pgm.s.enmShadowMode)));
/* guest */
if (PGM_GST_PFN(Exit, pVCpu))
{
int rc = PGM_GST_PFN(Exit, pVCpu)(pVCpu);
if (RT_FAILURE(rc))
{
AssertMsgFailed(("Exit failed for guest mode %d: %Rrc\n", pVCpu->pgm.s.enmGuestMode, rc));
return rc;
}
}
/*
* Load new paging mode data.
*/
pgmR3ModeDataSwitch(pVM, pVCpu, enmShadowMode, enmGuestMode);
/*
* Enter new shadow mode (if changed).
*/
if ( enmShadowMode != pVCpu->pgm.s.enmShadowMode
|| fForceShwEnterExit)
{
int rc;
pVCpu->pgm.s.enmShadowMode = enmShadowMode;
switch (enmShadowMode)
{
case PGMMODE_32_BIT:
rc = PGM_SHW_NAME_32BIT(Enter)(pVCpu, false);
break;
case PGMMODE_PAE:
case PGMMODE_PAE_NX:
rc = PGM_SHW_NAME_PAE(Enter)(pVCpu, false);
break;
case PGMMODE_AMD64:
case PGMMODE_AMD64_NX:
rc = PGM_SHW_NAME_AMD64(Enter)(pVCpu, fIsNewGuestPagingMode64Bits);
break;
case PGMMODE_NESTED:
rc = PGM_SHW_NAME_NESTED(Enter)(pVCpu, fIsNewGuestPagingMode64Bits);
break;
case PGMMODE_EPT:
rc = PGM_SHW_NAME_EPT(Enter)(pVCpu, fIsNewGuestPagingMode64Bits);
break;
case PGMMODE_REAL:
case PGMMODE_PROTECTED:
default:
AssertReleaseMsgFailed(("enmShadowMode=%d\n", enmShadowMode));
return VERR_INTERNAL_ERROR;
}
if (RT_FAILURE(rc))
{
AssertReleaseMsgFailed(("Entering enmShadowMode=%d failed: %Rrc\n", enmShadowMode, rc));
pVCpu->pgm.s.enmShadowMode = PGMMODE_INVALID;
return rc;
}
}
/*
* Always flag the necessary updates
*/
VMCPU_FF_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
/*
* Enter the new guest and shadow+guest modes.
*/
int rc = -1;
int rc2 = -1;
RTGCPHYS GCPhysCR3 = NIL_RTGCPHYS;
pVCpu->pgm.s.enmGuestMode = enmGuestMode;
switch (enmGuestMode)
{
case PGMMODE_REAL:
rc = PGM_GST_NAME_REAL(Enter)(pVCpu, NIL_RTGCPHYS);
switch (pVCpu->pgm.s.enmShadowMode)
{
case PGMMODE_32_BIT:
rc2 = PGM_BTH_NAME_32BIT_REAL(Enter)(pVCpu, NIL_RTGCPHYS);
break;
case PGMMODE_PAE:
case PGMMODE_PAE_NX:
rc2 = PGM_BTH_NAME_PAE_REAL(Enter)(pVCpu, NIL_RTGCPHYS);
break;
case PGMMODE_NESTED:
rc2 = PGM_BTH_NAME_NESTED_REAL(Enter)(pVCpu, NIL_RTGCPHYS);
break;
case PGMMODE_EPT:
rc2 = PGM_BTH_NAME_EPT_REAL(Enter)(pVCpu, NIL_RTGCPHYS);
break;
case PGMMODE_AMD64:
case PGMMODE_AMD64_NX:
AssertMsgFailed(("Should use PAE shadow mode!\n"));
default: AssertFailed(); break;
}
break;
case PGMMODE_PROTECTED:
rc = PGM_GST_NAME_PROT(Enter)(pVCpu, NIL_RTGCPHYS);
switch (pVCpu->pgm.s.enmShadowMode)
{
case PGMMODE_32_BIT:
rc2 = PGM_BTH_NAME_32BIT_PROT(Enter)(pVCpu, NIL_RTGCPHYS);
break;
case PGMMODE_PAE:
case PGMMODE_PAE_NX:
rc2 = PGM_BTH_NAME_PAE_PROT(Enter)(pVCpu, NIL_RTGCPHYS);
break;
case PGMMODE_NESTED:
rc2 = PGM_BTH_NAME_NESTED_PROT(Enter)(pVCpu, NIL_RTGCPHYS);
break;
case PGMMODE_EPT:
rc2 = PGM_BTH_NAME_EPT_PROT(Enter)(pVCpu, NIL_RTGCPHYS);
break;
case PGMMODE_AMD64:
case PGMMODE_AMD64_NX:
AssertMsgFailed(("Should use PAE shadow mode!\n"));
default: AssertFailed(); break;
}
break;
case PGMMODE_32_BIT:
GCPhysCR3 = CPUMGetGuestCR3(pVCpu) & X86_CR3_PAGE_MASK;
rc = PGM_GST_NAME_32BIT(Enter)(pVCpu, GCPhysCR3);
switch (pVCpu->pgm.s.enmShadowMode)
{
case PGMMODE_32_BIT:
rc2 = PGM_BTH_NAME_32BIT_32BIT(Enter)(pVCpu, GCPhysCR3);
break;
case PGMMODE_PAE:
case PGMMODE_PAE_NX:
rc2 = PGM_BTH_NAME_PAE_32BIT(Enter)(pVCpu, GCPhysCR3);
break;
case PGMMODE_NESTED:
rc2 = PGM_BTH_NAME_NESTED_32BIT(Enter)(pVCpu, GCPhysCR3);
break;
case PGMMODE_EPT:
rc2 = PGM_BTH_NAME_EPT_32BIT(Enter)(pVCpu, GCPhysCR3);
break;
case PGMMODE_AMD64:
case PGMMODE_AMD64_NX:
AssertMsgFailed(("Should use PAE shadow mode!\n"));
default: AssertFailed(); break;
}
break;
case PGMMODE_PAE_NX:
case PGMMODE_PAE:
{
uint32_t u32Dummy, u32Features;
CPUMGetGuestCpuId(pVCpu, 1, &u32Dummy, &u32Dummy, &u32Dummy, &u32Features);
if (!(u32Features & X86_CPUID_FEATURE_EDX_PAE))
return VMSetRuntimeError(pVM, VMSETRTERR_FLAGS_FATAL, "PAEmode",
N_("The guest is trying to switch to the PAE mode which is currently disabled by default in VirtualBox. PAE support can be enabled using the VM settings (General/Advanced)"));
GCPhysCR3 = CPUMGetGuestCR3(pVCpu) & X86_CR3_PAE_PAGE_MASK;
rc = PGM_GST_NAME_PAE(Enter)(pVCpu, GCPhysCR3);
switch (pVCpu->pgm.s.enmShadowMode)
{
case PGMMODE_PAE:
case PGMMODE_PAE_NX:
rc2 = PGM_BTH_NAME_PAE_PAE(Enter)(pVCpu, GCPhysCR3);
break;
case PGMMODE_NESTED:
rc2 = PGM_BTH_NAME_NESTED_PAE(Enter)(pVCpu, GCPhysCR3);
break;
case PGMMODE_EPT:
rc2 = PGM_BTH_NAME_EPT_PAE(Enter)(pVCpu, GCPhysCR3);
break;
case PGMMODE_32_BIT:
case PGMMODE_AMD64:
case PGMMODE_AMD64_NX:
AssertMsgFailed(("Should use PAE shadow mode!\n"));
default: AssertFailed(); break;
}
break;
}
#ifdef VBOX_WITH_64_BITS_GUESTS
case PGMMODE_AMD64_NX:
case PGMMODE_AMD64:
GCPhysCR3 = CPUMGetGuestCR3(pVCpu) & UINT64_C(0xfffffffffffff000); /** @todo define this mask! */
rc = PGM_GST_NAME_AMD64(Enter)(pVCpu, GCPhysCR3);
switch (pVCpu->pgm.s.enmShadowMode)
{
case PGMMODE_AMD64:
case PGMMODE_AMD64_NX:
rc2 = PGM_BTH_NAME_AMD64_AMD64(Enter)(pVCpu, GCPhysCR3);
break;
case PGMMODE_NESTED:
rc2 = PGM_BTH_NAME_NESTED_AMD64(Enter)(pVCpu, GCPhysCR3);
break;
case PGMMODE_EPT:
rc2 = PGM_BTH_NAME_EPT_AMD64(Enter)(pVCpu, GCPhysCR3);
break;
case PGMMODE_32_BIT:
case PGMMODE_PAE:
case PGMMODE_PAE_NX:
AssertMsgFailed(("Should use AMD64 shadow mode!\n"));
default: AssertFailed(); break;
}
break;
#endif
default:
AssertReleaseMsgFailed(("enmGuestMode=%d\n", enmGuestMode));
rc = VERR_NOT_IMPLEMENTED;
break;
}
/* status codes. */
AssertRC(rc);
AssertRC(rc2);
if (RT_SUCCESS(rc))
{
rc = rc2;
if (RT_SUCCESS(rc)) /* no informational status codes. */
rc = VINF_SUCCESS;
}
/* Notify HWACCM as well. */
HWACCMR3PagingModeChanged(pVM, pVCpu, pVCpu->pgm.s.enmShadowMode, pVCpu->pgm.s.enmGuestMode);
return rc;
}
/**
* Called by pgmPoolFlushAllInt prior to flushing the pool.
*
* @returns VBox status code, fully asserted.
* @param pVM The VM handle.
* @param pVCpu The VMCPU to operate on.
*/
int pgmR3ExitShadowModeBeforePoolFlush(PVM pVM, PVMCPU pVCpu)
{
/* Unmap the old CR3 value before flushing everything. */
int rc = PGM_BTH_PFN(UnmapCR3, pVCpu)(pVCpu);
AssertRC(rc);
/* Exit the current shadow paging mode as well; nested paging and EPT use a root CR3 which will get flushed here. */
rc = PGM_SHW_PFN(Exit, pVCpu)(pVCpu);
AssertRC(rc);
Assert(pVCpu->pgm.s.pShwPageCR3R3 == NULL);
return rc;
}
/**
* Called by pgmPoolFlushAllInt after flushing the pool.
*
* @returns VBox status code, fully asserted.
* @param pVM The VM handle.
* @param pVCpu The VMCPU to operate on.
*/
int pgmR3ReEnterShadowModeAfterPoolFlush(PVM pVM, PVMCPU pVCpu)
{
pVCpu->pgm.s.enmShadowMode = PGMMODE_INVALID;
int rc = PGMR3ChangeMode(pVM, pVCpu, PGMGetGuestMode(pVCpu));
Assert(VMCPU_FF_ISSET(pVCpu, VMCPU_FF_PGM_SYNC_CR3));
AssertRCReturn(rc, rc);
AssertRCSuccessReturn(rc, VERR_IPE_UNEXPECTED_INFO_STATUS);
Assert(pVCpu->pgm.s.pShwPageCR3R3 != NULL);
AssertMsg( pVCpu->pgm.s.enmShadowMode >= PGMMODE_NESTED
|| CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu),
("%RHp != %RHp %s\n", (RTHCPHYS)CPUMGetHyperCR3(pVCpu), PGMGetHyperCR3(pVCpu), PGMGetModeName(pVCpu->pgm.s.enmShadowMode)));
return rc;
}
/**
* Dumps a PAE shadow page table.
*
* @returns VBox status code (VINF_SUCCESS).
* @param pVM The VM handle.
* @param pPT Pointer to the page table.
* @param u64Address The virtual address of the page table starts.
* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
* @param cMaxDepth The maxium depth.
* @param pHlp Pointer to the output functions.
*/
static int pgmR3DumpHierarchyHCPaePT(PVM pVM, PX86PTPAE pPT, uint64_t u64Address, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
{
for (unsigned i = 0; i < RT_ELEMENTS(pPT->a); i++)
{
X86PTEPAE Pte = pPT->a[i];
if (Pte.n.u1Present)
{
pHlp->pfnPrintf(pHlp,
fLongMode /*P R S A D G WT CD AT NX 4M a p ? */
? "%016llx 3 | P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx\n"
: "%08llx 2 | P %c %c %c %c %c %s %s %s %s 4K %c%c%c %016llx\n",
u64Address + ((uint64_t)i << X86_PT_PAE_SHIFT),
Pte.n.u1Write ? 'W' : 'R',
Pte.n.u1User ? 'U' : 'S',
Pte.n.u1Accessed ? 'A' : '-',
Pte.n.u1Dirty ? 'D' : '-',
Pte.n.u1Global ? 'G' : '-',
Pte.n.u1WriteThru ? "WT" : "--",
Pte.n.u1CacheDisable? "CD" : "--",
Pte.n.u1PAT ? "AT" : "--",
Pte.n.u1NoExecute ? "NX" : "--",
Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
Pte.u & RT_BIT(10) ? '1' : '0',
Pte.u & PGM_PTFLAGS_CSAM_VALIDATED? 'v' : '-',
Pte.u & X86_PTE_PAE_PG_MASK);
}
}
return VINF_SUCCESS;
}
/**
* Dumps a PAE shadow page directory table.
*
* @returns VBox status code (VINF_SUCCESS).
* @param pVM The VM handle.
* @param HCPhys The physical address of the page directory table.
* @param u64Address The virtual address of the page table starts.
* @param cr4 The CR4, PSE is currently used.
* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
* @param cMaxDepth The maxium depth.
* @param pHlp Pointer to the output functions.
*/
static int pgmR3DumpHierarchyHCPaePD(PVM pVM, RTHCPHYS HCPhys, uint64_t u64Address, uint32_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
{
PX86PDPAE pPD = (PX86PDPAE)MMPagePhys2Page(pVM, HCPhys);
if (!pPD)
{
pHlp->pfnPrintf(pHlp, "%0*llx error! Page directory at HCPhys=%RHp was not found in the page pool!\n",
fLongMode ? 16 : 8, u64Address, HCPhys);
return VERR_INVALID_PARAMETER;
}
const bool fBigPagesSupported = fLongMode || !!(cr4 & X86_CR4_PSE);
int rc = VINF_SUCCESS;
for (unsigned i = 0; i < RT_ELEMENTS(pPD->a); i++)
{
X86PDEPAE Pde = pPD->a[i];
if (Pde.n.u1Present)
{
if (fBigPagesSupported && Pde.b.u1Size)
pHlp->pfnPrintf(pHlp,
fLongMode /*P R S A D G WT CD AT NX 4M a p ? */
? "%016llx 2 | P %c %c %c %c %c %s %s %s %s 4M %c%c%c %016llx\n"
: "%08llx 1 | P %c %c %c %c %c %s %s %s %s 4M %c%c%c %016llx\n",
u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT),
Pde.b.u1Write ? 'W' : 'R',
Pde.b.u1User ? 'U' : 'S',
Pde.b.u1Accessed ? 'A' : '-',
Pde.b.u1Dirty ? 'D' : '-',
Pde.b.u1Global ? 'G' : '-',
Pde.b.u1WriteThru ? "WT" : "--",
Pde.b.u1CacheDisable? "CD" : "--",
Pde.b.u1PAT ? "AT" : "--",
Pde.b.u1NoExecute ? "NX" : "--",
Pde.u & RT_BIT_64(9) ? '1' : '0',
Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
Pde.u & X86_PDE_PAE_PG_MASK);
else
{
pHlp->pfnPrintf(pHlp,
fLongMode /*P R S A D G WT CD AT NX 4M a p ? */
? "%016llx 2 | P %c %c %c %c %c %s %s .. %s 4K %c%c%c %016llx\n"
: "%08llx 1 | P %c %c %c %c %c %s %s .. %s 4K %c%c%c %016llx\n",
u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT),
Pde.n.u1Write ? 'W' : 'R',
Pde.n.u1User ? 'U' : 'S',
Pde.n.u1Accessed ? 'A' : '-',
Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
Pde.n.u1WriteThru ? "WT" : "--",
Pde.n.u1CacheDisable? "CD" : "--",
Pde.n.u1NoExecute ? "NX" : "--",
Pde.u & RT_BIT_64(9) ? '1' : '0',
Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
Pde.u & X86_PDE_PAE_PG_MASK);
if (cMaxDepth >= 1)
{
/** @todo what about using the page pool for mapping PTs? */
uint64_t u64AddressPT = u64Address + ((uint64_t)i << X86_PD_PAE_SHIFT);
RTHCPHYS HCPhysPT = Pde.u & X86_PDE_PAE_PG_MASK;
PX86PTPAE pPT = NULL;
if (!(Pde.u & PGM_PDFLAGS_MAPPING))
pPT = (PX86PTPAE)MMPagePhys2Page(pVM, HCPhysPT);
else
{
for (PPGMMAPPING pMap = pVM->pgm.s.pMappingsR3; pMap; pMap = pMap->pNextR3)
{
uint64_t off = u64AddressPT - pMap->GCPtr;
if (off < pMap->cb)
{
const int iPDE = (uint32_t)(off >> X86_PD_SHIFT);
const int iSub = (int)((off >> X86_PD_PAE_SHIFT) & 1); /* MSC is a pain sometimes */
if ((iSub ? pMap->aPTs[iPDE].HCPhysPaePT1 : pMap->aPTs[iPDE].HCPhysPaePT0) != HCPhysPT)
pHlp->pfnPrintf(pHlp, "%0*llx error! Mapping error! PT %d has HCPhysPT=%RHp not %RHp is in the PD.\n",
fLongMode ? 16 : 8, u64AddressPT, iPDE,
iSub ? pMap->aPTs[iPDE].HCPhysPaePT1 : pMap->aPTs[iPDE].HCPhysPaePT0, HCPhysPT);
pPT = &pMap->aPTs[iPDE].paPaePTsR3[iSub];
}
}
}
int rc2 = VERR_INVALID_PARAMETER;
if (pPT)
rc2 = pgmR3DumpHierarchyHCPaePT(pVM, pPT, u64AddressPT, fLongMode, cMaxDepth - 1, pHlp);
else
pHlp->pfnPrintf(pHlp, "%0*llx error! Page table at HCPhys=%RHp was not found in the page pool!\n",
fLongMode ? 16 : 8, u64AddressPT, HCPhysPT);
if (rc2 < rc && RT_SUCCESS(rc))
rc = rc2;
}
}
}
}
return rc;
}
/**
* Dumps a PAE shadow page directory pointer table.
*
* @returns VBox status code (VINF_SUCCESS).
* @param pVM The VM handle.
* @param HCPhys The physical address of the page directory pointer table.
* @param u64Address The virtual address of the page table starts.
* @param cr4 The CR4, PSE is currently used.
* @param fLongMode Set if this a long mode table; clear if it's a legacy mode table.
* @param cMaxDepth The maxium depth.
* @param pHlp Pointer to the output functions.
*/
static int pgmR3DumpHierarchyHCPaePDPT(PVM pVM, RTHCPHYS HCPhys, uint64_t u64Address, uint32_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
{
PX86PDPT pPDPT = (PX86PDPT)MMPagePhys2Page(pVM, HCPhys);
if (!pPDPT)
{
pHlp->pfnPrintf(pHlp, "%0*llx error! Page directory pointer table at HCPhys=%RHp was not found in the page pool!\n",
fLongMode ? 16 : 8, u64Address, HCPhys);
return VERR_INVALID_PARAMETER;
}
int rc = VINF_SUCCESS;
const unsigned c = fLongMode ? RT_ELEMENTS(pPDPT->a) : X86_PG_PAE_PDPE_ENTRIES;
for (unsigned i = 0; i < c; i++)
{
X86PDPE Pdpe = pPDPT->a[i];
if (Pdpe.n.u1Present)
{
if (fLongMode)
pHlp->pfnPrintf(pHlp, /*P R S A D G WT CD AT NX 4M a p ? */
"%016llx 1 | P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx\n",
u64Address + ((uint64_t)i << X86_PDPT_SHIFT),
Pdpe.lm.u1Write ? 'W' : 'R',
Pdpe.lm.u1User ? 'U' : 'S',
Pdpe.lm.u1Accessed ? 'A' : '-',
Pdpe.lm.u3Reserved & 1? '?' : '.', /* ignored */
Pdpe.lm.u3Reserved & 4? '!' : '.', /* mbz */
Pdpe.lm.u1WriteThru ? "WT" : "--",
Pdpe.lm.u1CacheDisable? "CD" : "--",
Pdpe.lm.u3Reserved & 2? "!" : "..",/* mbz */
Pdpe.lm.u1NoExecute ? "NX" : "--",
Pdpe.u & RT_BIT(9) ? '1' : '0',
Pdpe.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
Pdpe.u & RT_BIT(11) ? '1' : '0',
Pdpe.u & X86_PDPE_PG_MASK);
else
pHlp->pfnPrintf(pHlp, /*P G WT CD AT NX 4M a p ? */
"%08x 0 | P %c %s %s %s %s .. %c%c%c %016llx\n",
i << X86_PDPT_SHIFT,
Pdpe.n.u4Reserved & 1? '!' : '.', /* mbz */
Pdpe.n.u4Reserved & 4? '!' : '.', /* mbz */
Pdpe.n.u1WriteThru ? "WT" : "--",
Pdpe.n.u1CacheDisable? "CD" : "--",
Pdpe.n.u4Reserved & 2? "!" : "..",/* mbz */
Pdpe.u & RT_BIT(9) ? '1' : '0',
Pdpe.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
Pdpe.u & RT_BIT(11) ? '1' : '0',
Pdpe.u & X86_PDPE_PG_MASK);
if (cMaxDepth >= 1)
{
int rc2 = pgmR3DumpHierarchyHCPaePD(pVM, Pdpe.u & X86_PDPE_PG_MASK, u64Address + ((uint64_t)i << X86_PDPT_SHIFT),
cr4, fLongMode, cMaxDepth - 1, pHlp);
if (rc2 < rc && RT_SUCCESS(rc))
rc = rc2;
}
}
}
return rc;
}
/**
* Dumps a 32-bit shadow page table.
*
* @returns VBox status code (VINF_SUCCESS).
* @param pVM The VM handle.
* @param HCPhys The physical address of the table.
* @param cr4 The CR4, PSE is currently used.
* @param cMaxDepth The maxium depth.
* @param pHlp Pointer to the output functions.
*/
static int pgmR3DumpHierarchyHcPaePML4(PVM pVM, RTHCPHYS HCPhys, uint32_t cr4, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
{
PX86PML4 pPML4 = (PX86PML4)MMPagePhys2Page(pVM, HCPhys);
if (!pPML4)
{
pHlp->pfnPrintf(pHlp, "Page map level 4 at HCPhys=%RHp was not found in the page pool!\n", HCPhys);
return VERR_INVALID_PARAMETER;
}
int rc = VINF_SUCCESS;
for (unsigned i = 0; i < RT_ELEMENTS(pPML4->a); i++)
{
X86PML4E Pml4e = pPML4->a[i];
if (Pml4e.n.u1Present)
{
uint64_t u64Address = ((uint64_t)i << X86_PML4_SHIFT) | (((uint64_t)i >> (X86_PML4_SHIFT - X86_PDPT_SHIFT - 1)) * 0xffff000000000000ULL);
pHlp->pfnPrintf(pHlp, /*P R S A D G WT CD AT NX 4M a p ? */
"%016llx 0 | P %c %c %c %c %c %s %s %s %s .. %c%c%c %016llx\n",
u64Address,
Pml4e.n.u1Write ? 'W' : 'R',
Pml4e.n.u1User ? 'U' : 'S',
Pml4e.n.u1Accessed ? 'A' : '-',
Pml4e.n.u3Reserved & 1? '?' : '.', /* ignored */
Pml4e.n.u3Reserved & 4? '!' : '.', /* mbz */
Pml4e.n.u1WriteThru ? "WT" : "--",
Pml4e.n.u1CacheDisable? "CD" : "--",
Pml4e.n.u3Reserved & 2? "!" : "..",/* mbz */
Pml4e.n.u1NoExecute ? "NX" : "--",
Pml4e.u & RT_BIT(9) ? '1' : '0',
Pml4e.u & PGM_PLXFLAGS_PERMANENT ? 'p' : '-',
Pml4e.u & RT_BIT(11) ? '1' : '0',
Pml4e.u & X86_PML4E_PG_MASK);
if (cMaxDepth >= 1)
{
int rc2 = pgmR3DumpHierarchyHCPaePDPT(pVM, Pml4e.u & X86_PML4E_PG_MASK, u64Address, cr4, true, cMaxDepth - 1, pHlp);
if (rc2 < rc && RT_SUCCESS(rc))
rc = rc2;
}
}
}
return rc;
}
/**
* Dumps a 32-bit shadow page table.
*
* @returns VBox status code (VINF_SUCCESS).
* @param pVM The VM handle.
* @param pPT Pointer to the page table.
* @param u32Address The virtual address this table starts at.
* @param pHlp Pointer to the output functions.
*/
int pgmR3DumpHierarchyHC32BitPT(PVM pVM, PX86PT pPT, uint32_t u32Address, PCDBGFINFOHLP pHlp)
{
for (unsigned i = 0; i < RT_ELEMENTS(pPT->a); i++)
{
X86PTE Pte = pPT->a[i];
if (Pte.n.u1Present)
{
pHlp->pfnPrintf(pHlp, /*P R S A D G WT CD AT NX 4M a m d */
"%08x 1 | P %c %c %c %c %c %s %s %s .. 4K %c%c%c %08x\n",
u32Address + (i << X86_PT_SHIFT),
Pte.n.u1Write ? 'W' : 'R',
Pte.n.u1User ? 'U' : 'S',
Pte.n.u1Accessed ? 'A' : '-',
Pte.n.u1Dirty ? 'D' : '-',
Pte.n.u1Global ? 'G' : '-',
Pte.n.u1WriteThru ? "WT" : "--",
Pte.n.u1CacheDisable? "CD" : "--",
Pte.n.u1PAT ? "AT" : "--",
Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
Pte.u & RT_BIT(10) ? '1' : '0',
Pte.u & PGM_PTFLAGS_CSAM_VALIDATED ? 'v' : '-',
Pte.u & X86_PDE_PG_MASK);
}
}
return VINF_SUCCESS;
}
/**
* Dumps a 32-bit shadow page directory and page tables.
*
* @returns VBox status code (VINF_SUCCESS).
* @param pVM The VM handle.
* @param cr3 The root of the hierarchy.
* @param cr4 The CR4, PSE is currently used.
* @param cMaxDepth How deep into the hierarchy the dumper should go.
* @param pHlp Pointer to the output functions.
*/
int pgmR3DumpHierarchyHC32BitPD(PVM pVM, uint32_t cr3, uint32_t cr4, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
{
PX86PD pPD = (PX86PD)MMPagePhys2Page(pVM, cr3 & X86_CR3_PAGE_MASK);
if (!pPD)
{
pHlp->pfnPrintf(pHlp, "Page directory at %#x was not found in the page pool!\n", cr3 & X86_CR3_PAGE_MASK);
return VERR_INVALID_PARAMETER;
}
int rc = VINF_SUCCESS;
for (unsigned i = 0; i < RT_ELEMENTS(pPD->a); i++)
{
X86PDE Pde = pPD->a[i];
if (Pde.n.u1Present)
{
const uint32_t u32Address = i << X86_PD_SHIFT;
if ((cr4 & X86_CR4_PSE) && Pde.b.u1Size)
pHlp->pfnPrintf(pHlp, /*P R S A D G WT CD AT NX 4M a m d */
"%08x 0 | P %c %c %c %c %c %s %s %s .. 4M %c%c%c %08x\n",
u32Address,
Pde.b.u1Write ? 'W' : 'R',
Pde.b.u1User ? 'U' : 'S',
Pde.b.u1Accessed ? 'A' : '-',
Pde.b.u1Dirty ? 'D' : '-',
Pde.b.u1Global ? 'G' : '-',
Pde.b.u1WriteThru ? "WT" : "--",
Pde.b.u1CacheDisable? "CD" : "--",
Pde.b.u1PAT ? "AT" : "--",
Pde.u & RT_BIT_64(9) ? '1' : '0',
Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
Pde.u & X86_PDE4M_PG_MASK);
else
{
pHlp->pfnPrintf(pHlp, /*P R S A D G WT CD AT NX 4M a m d */
"%08x 0 | P %c %c %c %c %c %s %s .. .. 4K %c%c%c %08x\n",
u32Address,
Pde.n.u1Write ? 'W' : 'R',
Pde.n.u1User ? 'U' : 'S',
Pde.n.u1Accessed ? 'A' : '-',
Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
Pde.n.u1WriteThru ? "WT" : "--",
Pde.n.u1CacheDisable? "CD" : "--",
Pde.u & RT_BIT_64(9) ? '1' : '0',
Pde.u & PGM_PDFLAGS_MAPPING ? 'm' : '-',
Pde.u & PGM_PDFLAGS_TRACK_DIRTY ? 'd' : '-',
Pde.u & X86_PDE_PG_MASK);
if (cMaxDepth >= 1)
{
/** @todo what about using the page pool for mapping PTs? */
RTHCPHYS HCPhys = Pde.u & X86_PDE_PG_MASK;
PX86PT pPT = NULL;
if (!(Pde.u & PGM_PDFLAGS_MAPPING))
pPT = (PX86PT)MMPagePhys2Page(pVM, HCPhys);
else
{
for (PPGMMAPPING pMap = pVM->pgm.s.pMappingsR3; pMap; pMap = pMap->pNextR3)
if (u32Address - pMap->GCPtr < pMap->cb)
{
int iPDE = (u32Address - pMap->GCPtr) >> X86_PD_SHIFT;
if (pMap->aPTs[iPDE].HCPhysPT != HCPhys)
pHlp->pfnPrintf(pHlp, "%08x error! Mapping error! PT %d has HCPhysPT=%RHp not %RHp is in the PD.\n",
u32Address, iPDE, pMap->aPTs[iPDE].HCPhysPT, HCPhys);
pPT = pMap->aPTs[iPDE].pPTR3;
}
}
int rc2 = VERR_INVALID_PARAMETER;
if (pPT)
rc2 = pgmR3DumpHierarchyHC32BitPT(pVM, pPT, u32Address, pHlp);
else
pHlp->pfnPrintf(pHlp, "%08x error! Page table at %#x was not found in the page pool!\n", u32Address, HCPhys);
if (rc2 < rc && RT_SUCCESS(rc))
rc = rc2;
}
}
}
}
return rc;
}
/**
* Dumps a 32-bit shadow page table.
*
* @returns VBox status code (VINF_SUCCESS).
* @param pVM The VM handle.
* @param pPT Pointer to the page table.
* @param u32Address The virtual address this table starts at.
* @param PhysSearch Address to search for.
*/
int pgmR3DumpHierarchyGC32BitPT(PVM pVM, PX86PT pPT, uint32_t u32Address, RTGCPHYS PhysSearch)
{
for (unsigned i = 0; i < RT_ELEMENTS(pPT->a); i++)
{
X86PTE Pte = pPT->a[i];
if (Pte.n.u1Present)
{
Log(( /*P R S A D G WT CD AT NX 4M a m d */
"%08x 1 | P %c %c %c %c %c %s %s %s .. 4K %c%c%c %08x\n",
u32Address + (i << X86_PT_SHIFT),
Pte.n.u1Write ? 'W' : 'R',
Pte.n.u1User ? 'U' : 'S',
Pte.n.u1Accessed ? 'A' : '-',
Pte.n.u1Dirty ? 'D' : '-',
Pte.n.u1Global ? 'G' : '-',
Pte.n.u1WriteThru ? "WT" : "--",
Pte.n.u1CacheDisable? "CD" : "--",
Pte.n.u1PAT ? "AT" : "--",
Pte.u & PGM_PTFLAGS_TRACK_DIRTY ? 'd' : '-',
Pte.u & RT_BIT(10) ? '1' : '0',
Pte.u & PGM_PTFLAGS_CSAM_VALIDATED ? 'v' : '-',
Pte.u & X86_PDE_PG_MASK));
if ((Pte.u & X86_PDE_PG_MASK) == PhysSearch)
{
uint64_t fPageShw = 0;
RTHCPHYS pPhysHC = 0;
/** @todo SMP support!! */
PGMShwGetPage(&pVM->aCpus[0], (RTGCPTR)(u32Address + (i << X86_PT_SHIFT)), &fPageShw, &pPhysHC);
Log(("Found %RGp at %RGv -> flags=%llx\n", PhysSearch, (RTGCPTR)(u32Address + (i << X86_PT_SHIFT)), fPageShw));
}
}
}
return VINF_SUCCESS;
}
/**
* Dumps a 32-bit guest page directory and page tables.
*
* @returns VBox status code (VINF_SUCCESS).
* @param pVM The VM handle.
* @param cr3 The root of the hierarchy.
* @param cr4 The CR4, PSE is currently used.
* @param PhysSearch Address to search for.
*/
VMMR3DECL(int) PGMR3DumpHierarchyGC(PVM pVM, uint64_t cr3, uint64_t cr4, RTGCPHYS PhysSearch)
{
bool fLongMode = false;
const unsigned cch = fLongMode ? 16 : 8; NOREF(cch);
PX86PD pPD = 0;
int rc = PGM_GCPHYS_2_PTR(pVM, cr3 & X86_CR3_PAGE_MASK, &pPD);
if (RT_FAILURE(rc) || !pPD)
{
Log(("Page directory at %#x was not found in the page pool!\n", cr3 & X86_CR3_PAGE_MASK));
return VERR_INVALID_PARAMETER;
}
Log(("cr3=%08x cr4=%08x%s\n"
"%-*s P - Present\n"
"%-*s | R/W - Read (0) / Write (1)\n"
"%-*s | | U/S - User (1) / Supervisor (0)\n"
"%-*s | | | A - Accessed\n"
"%-*s | | | | D - Dirty\n"
"%-*s | | | | | G - Global\n"
"%-*s | | | | | | WT - Write thru\n"
"%-*s | | | | | | | CD - Cache disable\n"
"%-*s | | | | | | | | AT - Attribute table (PAT)\n"
"%-*s | | | | | | | | | NX - No execute (K8)\n"
"%-*s | | | | | | | | | | 4K/4M/2M - Page size.\n"
"%-*s | | | | | | | | | | | AVL - a=allocated; m=mapping; d=track dirty;\n"
"%-*s | | | | | | | | | | | | p=permanent; v=validated;\n"
"%-*s Level | | | | | | | | | | | | Page\n"
/* xxxx n **** P R S A D G WT CD AT NX 4M AVL xxxxxxxxxxxxx
- W U - - - -- -- -- -- -- 010 */
, cr3, cr4, fLongMode ? " Long Mode" : "",
cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "",
cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address"));
for (unsigned i = 0; i < RT_ELEMENTS(pPD->a); i++)
{
X86PDE Pde = pPD->a[i];
if (Pde.n.u1Present)
{
const uint32_t u32Address = i << X86_PD_SHIFT;
if ((cr4 & X86_CR4_PSE) && Pde.b.u1Size)
Log(( /*P R S A D G WT CD AT NX 4M a m d */
"%08x 0 | P %c %c %c %c %c %s %s %s .. 4M %c%c%c %08x\n",
u32Address,
Pde.b.u1Write ? 'W' : 'R',
Pde.b.u1User ? 'U' : 'S',
Pde.b.u1Accessed ? 'A' : '-',
Pde.b.u1Dirty ? 'D' : '-',
Pde.b.u1Global ? 'G' : '-',
Pde.b.u1WriteThru ? "WT" : "--",
Pde.b.u1CacheDisable? "CD" : "--",
Pde.b.u1PAT ? "AT" : "--",
Pde.u & RT_BIT(9) ? '1' : '0',
Pde.u & RT_BIT(10) ? '1' : '0',
Pde.u & RT_BIT(11) ? '1' : '0',
pgmGstGet4MBPhysPage(&pVM->pgm.s, Pde)));
/** @todo PhysSearch */
else
{
Log(( /*P R S A D G WT CD AT NX 4M a m d */
"%08x 0 | P %c %c %c %c %c %s %s .. .. 4K %c%c%c %08x\n",
u32Address,
Pde.n.u1Write ? 'W' : 'R',
Pde.n.u1User ? 'U' : 'S',
Pde.n.u1Accessed ? 'A' : '-',
Pde.n.u1Reserved0 ? '?' : '.', /* ignored */
Pde.n.u1Reserved1 ? '?' : '.', /* ignored */
Pde.n.u1WriteThru ? "WT" : "--",
Pde.n.u1CacheDisable? "CD" : "--",
Pde.u & RT_BIT(9) ? '1' : '0',
Pde.u & RT_BIT(10) ? '1' : '0',
Pde.u & RT_BIT(11) ? '1' : '0',
Pde.u & X86_PDE_PG_MASK));
////if (cMaxDepth >= 1)
{
/** @todo what about using the page pool for mapping PTs? */
RTGCPHYS GCPhys = Pde.u & X86_PDE_PG_MASK;
PX86PT pPT = NULL;
rc = PGM_GCPHYS_2_PTR(pVM, GCPhys, &pPT);
int rc2 = VERR_INVALID_PARAMETER;
if (pPT)
rc2 = pgmR3DumpHierarchyGC32BitPT(pVM, pPT, u32Address, PhysSearch);
else
Log(("%08x error! Page table at %#x was not found in the page pool!\n", u32Address, GCPhys));
if (rc2 < rc && RT_SUCCESS(rc))
rc = rc2;
}
}
}
}
return rc;
}
/**
* Dumps a page table hierarchy use only physical addresses and cr4/lm flags.
*
* @returns VBox status code (VINF_SUCCESS).
* @param pVM The VM handle.
* @param cr3 The root of the hierarchy.
* @param cr4 The cr4, only PAE and PSE is currently used.
* @param fLongMode Set if long mode, false if not long mode.
* @param cMaxDepth Number of levels to dump.
* @param pHlp Pointer to the output functions.
*/
VMMR3DECL(int) PGMR3DumpHierarchyHC(PVM pVM, uint64_t cr3, uint64_t cr4, bool fLongMode, unsigned cMaxDepth, PCDBGFINFOHLP pHlp)
{
if (!pHlp)
pHlp = DBGFR3InfoLogHlp();
if (!cMaxDepth)
return VINF_SUCCESS;
const unsigned cch = fLongMode ? 16 : 8;
pHlp->pfnPrintf(pHlp,
"cr3=%08x cr4=%08x%s\n"
"%-*s P - Present\n"
"%-*s | R/W - Read (0) / Write (1)\n"
"%-*s | | U/S - User (1) / Supervisor (0)\n"
"%-*s | | | A - Accessed\n"
"%-*s | | | | D - Dirty\n"
"%-*s | | | | | G - Global\n"
"%-*s | | | | | | WT - Write thru\n"
"%-*s | | | | | | | CD - Cache disable\n"
"%-*s | | | | | | | | AT - Attribute table (PAT)\n"
"%-*s | | | | | | | | | NX - No execute (K8)\n"
"%-*s | | | | | | | | | | 4K/4M/2M - Page size.\n"
"%-*s | | | | | | | | | | | AVL - a=allocated; m=mapping; d=track dirty;\n"
"%-*s | | | | | | | | | | | | p=permanent; v=validated;\n"
"%-*s Level | | | | | | | | | | | | Page\n"
/* xxxx n **** P R S A D G WT CD AT NX 4M AVL xxxxxxxxxxxxx
- W U - - - -- -- -- -- -- 010 */
, cr3, cr4, fLongMode ? " Long Mode" : "",
cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "",
cch, "", cch, "", cch, "", cch, "", cch, "", cch, "", cch, "Address");
if (cr4 & X86_CR4_PAE)
{
if (fLongMode)
return pgmR3DumpHierarchyHcPaePML4(pVM, cr3 & X86_CR3_PAGE_MASK, cr4, cMaxDepth, pHlp);
return pgmR3DumpHierarchyHCPaePDPT(pVM, cr3 & X86_CR3_PAE_PAGE_MASK, 0, cr4, false, cMaxDepth, pHlp);
}
return pgmR3DumpHierarchyHC32BitPD(pVM, cr3 & X86_CR3_PAGE_MASK, cr4, cMaxDepth, pHlp);
}
#ifdef VBOX_WITH_DEBUGGER
/**
* The '.pgmram' command.
*
* @returns VBox status.
* @param pCmd Pointer to the command descriptor (as registered).
* @param pCmdHlp Pointer to command helper functions.
* @param pVM Pointer to the current VM (if any).
* @param paArgs Pointer to (readonly) array of arguments.
* @param cArgs Number of arguments in the array.
*/
static DECLCALLBACK(int) pgmR3CmdRam(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
{
/*
* Validate input.
*/
if (!pVM)
return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
if (!pVM->pgm.s.pRamRangesRC)
return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Sorry, no Ram is registered.\n");
/*
* Dump the ranges.
*/
int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "From - To (incl) pvHC\n");
PPGMRAMRANGE pRam;
for (pRam = pVM->pgm.s.pRamRangesR3; pRam; pRam = pRam->pNextR3)
{
rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL,
"%RGp - %RGp %p\n",
pRam->GCPhys, pRam->GCPhysLast, pRam->pvR3);
if (RT_FAILURE(rc))
return rc;
}
return VINF_SUCCESS;
}
/**
* The '.pgmerror' and '.pgmerroroff' commands.
*
* @returns VBox status.
* @param pCmd Pointer to the command descriptor (as registered).
* @param pCmdHlp Pointer to command helper functions.
* @param pVM Pointer to the current VM (if any).
* @param paArgs Pointer to (readonly) array of arguments.
* @param cArgs Number of arguments in the array.
*/
static DECLCALLBACK(int) pgmR3CmdError(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
{
/*
* Validate input.
*/
if (!pVM)
return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
AssertReturn(cArgs == 0 || (cArgs == 1 && paArgs[0].enmType == DBGCVAR_TYPE_STRING),
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Hit bug in the parser.\n"));
if (!cArgs)
{
/*
* Print the list of error injection locations with status.
*/
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "PGM error inject locations:\n");
pCmdHlp->pfnPrintf(pCmdHlp, NULL, " handy - %RTbool\n", pVM->pgm.s.fErrInjHandyPages);
}
else
{
/*
* String switch on where to inject the error.
*/
bool const fNewState = !strcmp(pCmd->pszCmd, "pgmerror");
const char *pszWhere = paArgs[0].u.pszString;
if (!strcmp(pszWhere, "handy"))
ASMAtomicWriteBool(&pVM->pgm.s.fErrInjHandyPages, fNewState);
else
return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid 'where' value: %s.\n", pszWhere);
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "done\n");
}
return VINF_SUCCESS;
}
/**
* The '.pgmsync' command.
*
* @returns VBox status.
* @param pCmd Pointer to the command descriptor (as registered).
* @param pCmdHlp Pointer to command helper functions.
* @param pVM Pointer to the current VM (if any).
* @param paArgs Pointer to (readonly) array of arguments.
* @param cArgs Number of arguments in the array.
*/
static DECLCALLBACK(int) pgmR3CmdSync(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
{
/** @todo SMP support */
PVMCPU pVCpu = &pVM->aCpus[0];
/*
* Validate input.
*/
if (!pVM)
return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
/*
* Force page directory sync.
*/
VMCPU_FF_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Forcing page directory sync.\n");
if (RT_FAILURE(rc))
return rc;
return VINF_SUCCESS;
}
#ifdef VBOX_STRICT
/**
* The '.pgmassertcr3' command.
*
* @returns VBox status.
* @param pCmd Pointer to the command descriptor (as registered).
* @param pCmdHlp Pointer to command helper functions.
* @param pVM Pointer to the current VM (if any).
* @param paArgs Pointer to (readonly) array of arguments.
* @param cArgs Number of arguments in the array.
*/
static DECLCALLBACK(int) pgmR3CmdAssertCR3(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
{
/** @todo SMP support!! */
PVMCPU pVCpu = &pVM->aCpus[0];
/*
* Validate input.
*/
if (!pVM)
return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
int rc = pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Checking shadow CR3 page tables for consistency.\n");
if (RT_FAILURE(rc))
return rc;
PGMAssertCR3(pVM, pVCpu, CPUMGetGuestCR3(pVCpu), CPUMGetGuestCR4(pVCpu));
return VINF_SUCCESS;
}
#endif /* VBOX_STRICT */
#if defined(VBOX_STRICT) && HC_ARCH_BITS == 64
/**
* The '.pgmcheckduppages' command.
*
* @returns VBox status.
* @param pCmd Pointer to the command descriptor (as registered).
* @param pCmdHlp Pointer to command helper functions.
* @param pVM Pointer to the current VM (if any).
* @param paArgs Pointer to (readonly) array of arguments.
* @param cArgs Number of arguments in the array.
*/
static DECLCALLBACK(int) pgmR3CmdCheckDuplicatePages(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
{
unsigned cBallooned = 0;
unsigned cShared = 0;
unsigned cZero = 0;
unsigned cUnique = 0;
unsigned cDuplicate = 0;
pgmLock(pVM);
for (PPGMRAMRANGE pRam = pVM->pgm.s.pRamRangesR3; pRam; pRam = pRam->pNextR3)
{
PPGMPAGE pPage = &pRam->aPages[0];
RTGCPHYS GCPhys = pRam->GCPhys;
uint32_t cLeft = pRam->cb >> PAGE_SHIFT;
while (cLeft-- > 0)
{
if (PGM_PAGE_GET_TYPE(pPage) == PGMPAGETYPE_RAM)
{
switch (PGM_PAGE_GET_STATE(pPage))
{
case PGM_PAGE_STATE_ZERO:
cZero++;
break;
case PGM_PAGE_STATE_BALLOONED:
cBallooned++;
break;
case PGM_PAGE_STATE_SHARED:
cShared++;
break;
case PGM_PAGE_STATE_ALLOCATED:
case PGM_PAGE_STATE_WRITE_MONITORED:
if (GMMR3IsDuplicatePage(pVM, PGM_PAGE_GET_PAGEID(pPage)))
cDuplicate++;
else
cUnique++;
break;
default:
AssertFailed();
break;
}
}
/* next */
pPage++;
GCPhys += PAGE_SIZE;
}
}
pgmUnlock(pVM);
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Number of zero pages %x\n", cZero);
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Number of ballooned pages %x\n", cBallooned);
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Number of shared pages %x\n", cShared);
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Number of unique pages %x\n", cUnique);
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Number of duplicate pages %x\n", cDuplicate);
return VINF_SUCCESS;
}
#endif /* VBOX_STRICT && HC_ARCH_BITS == 64*/
/**
* The '.pgmsyncalways' command.
*
* @returns VBox status.
* @param pCmd Pointer to the command descriptor (as registered).
* @param pCmdHlp Pointer to command helper functions.
* @param pVM Pointer to the current VM (if any).
* @param paArgs Pointer to (readonly) array of arguments.
* @param cArgs Number of arguments in the array.
*/
static DECLCALLBACK(int) pgmR3CmdSyncAlways(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
{
/** @todo SMP support!! */
PVMCPU pVCpu = &pVM->aCpus[0];
/*
* Validate input.
*/
if (!pVM)
return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
/*
* Force page directory sync.
*/
if (pVCpu->pgm.s.fSyncFlags & PGM_SYNC_ALWAYS)
{
ASMAtomicAndU32(&pVCpu->pgm.s.fSyncFlags, ~PGM_SYNC_ALWAYS);
return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Disabled permanent forced page directory syncing.\n");
}
else
{
ASMAtomicOrU32(&pVCpu->pgm.s.fSyncFlags, PGM_SYNC_ALWAYS);
VMCPU_FF_SET(pVCpu, VMCPU_FF_PGM_SYNC_CR3);
return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Enabled permanent forced page directory syncing.\n");
}
}
/**
* The '.pgmsyncalways' command.
*
* @returns VBox status.
* @param pCmd Pointer to the command descriptor (as registered).
* @param pCmdHlp Pointer to command helper functions.
* @param pVM Pointer to the current VM (if any).
* @param paArgs Pointer to (readonly) array of arguments.
* @param cArgs Number of arguments in the array.
*/
static DECLCALLBACK(int) pgmR3CmdPhysToFile(PCDBGCCMD pCmd, PDBGCCMDHLP pCmdHlp, PVM pVM, PCDBGCVAR paArgs, unsigned cArgs, PDBGCVAR pResult)
{
/*
* Validate input.
*/
if (!pVM)
return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: The command requires a VM to be selected.\n");
if ( cArgs < 1
|| cArgs > 2
|| paArgs[0].enmType != DBGCVAR_TYPE_STRING
|| ( cArgs > 1
&& paArgs[1].enmType != DBGCVAR_TYPE_STRING))
return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: parser error, invalid arguments.\n");
if ( cArgs >= 2
&& strcmp(paArgs[1].u.pszString, "nozero"))
return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: Invalid 2nd argument '%s', must be 'nozero'.\n", paArgs[1].u.pszString);
bool fIncZeroPgs = cArgs < 2;
/*
* Open the output file and get the ram parameters.
*/
RTFILE hFile;
int rc = RTFileOpen(&hFile, paArgs[0].u.pszString, RTFILE_O_WRITE | RTFILE_O_CREATE_REPLACE | RTFILE_O_DENY_WRITE);
if (RT_FAILURE(rc))
return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: RTFileOpen(,'%s',) -> %Rrc.\n", paArgs[0].u.pszString, rc);
uint32_t cbRamHole = 0;
CFGMR3QueryU32Def(CFGMR3GetRoot(pVM), "RamHoleSize", &cbRamHole, MM_RAM_HOLE_SIZE_DEFAULT);
uint64_t cbRam = 0;
CFGMR3QueryU64Def(CFGMR3GetRoot(pVM), "RamSize", &cbRam, 0);
RTGCPHYS GCPhysEnd = cbRam + cbRamHole;
/*
* Dump the physical memory, page by page.
*/
RTGCPHYS GCPhys = 0;
char abZeroPg[PAGE_SIZE];
RT_ZERO(abZeroPg);
pgmLock(pVM);
for (PPGMRAMRANGE pRam = pVM->pgm.s.pRamRangesR3;
pRam && pRam->GCPhys < GCPhysEnd && RT_SUCCESS(rc);
pRam = pRam->pNextR3)
{
/* fill the gap */
if (pRam->GCPhys > GCPhys && fIncZeroPgs)
{
while (pRam->GCPhys > GCPhys && RT_SUCCESS(rc))
{
rc = RTFileWrite(hFile, abZeroPg, PAGE_SIZE, NULL);
GCPhys += PAGE_SIZE;
}
}
PCPGMPAGE pPage = &pRam->aPages[0];
while (GCPhys < pRam->GCPhysLast && RT_SUCCESS(rc))
{
if ( PGM_PAGE_IS_ZERO(pPage)
|| PGM_PAGE_IS_BALLOONED(pPage))
{
if (fIncZeroPgs)
{
rc = RTFileWrite(hFile, abZeroPg, PAGE_SIZE, NULL);
if (RT_FAILURE(rc))
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: RTFileWrite -> %Rrc at GCPhys=%RGp.\n", rc, GCPhys);
}
}
else
{
switch (PGM_PAGE_GET_TYPE(pPage))
{
case PGMPAGETYPE_RAM:
case PGMPAGETYPE_ROM_SHADOW: /* trouble?? */
case PGMPAGETYPE_ROM:
case PGMPAGETYPE_MMIO2:
{
void const *pvPage;
PGMPAGEMAPLOCK Lock;
rc = PGMPhysGCPhys2CCPtrReadOnly(pVM, GCPhys, &pvPage, &Lock);
if (RT_SUCCESS(rc))
{
rc = RTFileWrite(hFile, pvPage, PAGE_SIZE, NULL);
PGMPhysReleasePageMappingLock(pVM, &Lock);
if (RT_FAILURE(rc))
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: RTFileWrite -> %Rrc at GCPhys=%RGp.\n", rc, GCPhys);
}
else
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: PGMPhysGCPhys2CCPtrReadOnly -> %Rrc at GCPhys=%RGp.\n", rc, GCPhys);
break;
}
default:
AssertFailed();
case PGMPAGETYPE_MMIO2_ALIAS_MMIO:
case PGMPAGETYPE_MMIO:
if (fIncZeroPgs)
{
rc = RTFileWrite(hFile, abZeroPg, PAGE_SIZE, NULL);
if (RT_FAILURE(rc))
pCmdHlp->pfnPrintf(pCmdHlp, NULL, "error: RTFileWrite -> %Rrc at GCPhys=%RGp.\n", rc, GCPhys);
}
break;
}
}
/* advance */
GCPhys += PAGE_SIZE;
pPage++;
}
}
pgmUnlock(pVM);
RTFileClose(hFile);
if (RT_SUCCESS(rc))
return pCmdHlp->pfnPrintf(pCmdHlp, NULL, "Successfully saved physical memory to '%s'.\n", paArgs[0].u.pszString);
return VINF_SUCCESS;
}
#endif /* VBOX_WITH_DEBUGGER */
/**
* pvUser argument of the pgmR3CheckIntegrity*Node callbacks.
*/
typedef struct PGMCHECKINTARGS
{
bool fLeftToRight; /**< true: left-to-right; false: right-to-left. */
PPGMPHYSHANDLER pPrevPhys;
PPGMVIRTHANDLER pPrevVirt;
PPGMPHYS2VIRTHANDLER pPrevPhys2Virt;
PVM pVM;
} PGMCHECKINTARGS, *PPGMCHECKINTARGS;
/**
* Validate a node in the physical handler tree.
*
* @returns 0 on if ok, other wise 1.
* @param pNode The handler node.
* @param pvUser pVM.
*/
static DECLCALLBACK(int) pgmR3CheckIntegrityPhysHandlerNode(PAVLROGCPHYSNODECORE pNode, void *pvUser)
{
PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
PPGMPHYSHANDLER pCur = (PPGMPHYSHANDLER)pNode;
AssertReleaseReturn(!((uintptr_t)pCur & 7), 1);
AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %RGp-%RGp %s\n", pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
AssertReleaseMsg( !pArgs->pPrevPhys
|| (pArgs->fLeftToRight ? pArgs->pPrevPhys->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys->Core.KeyLast > pCur->Core.Key),
("pPrevPhys=%p %RGp-%RGp %s\n"
" pCur=%p %RGp-%RGp %s\n",
pArgs->pPrevPhys, pArgs->pPrevPhys->Core.Key, pArgs->pPrevPhys->Core.KeyLast, pArgs->pPrevPhys->pszDesc,
pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
pArgs->pPrevPhys = pCur;
return 0;
}
/**
* Validate a node in the virtual handler tree.
*
* @returns 0 on if ok, other wise 1.
* @param pNode The handler node.
* @param pvUser pVM.
*/
static DECLCALLBACK(int) pgmR3CheckIntegrityVirtHandlerNode(PAVLROGCPTRNODECORE pNode, void *pvUser)
{
PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
PPGMVIRTHANDLER pCur = (PPGMVIRTHANDLER)pNode;
AssertReleaseReturn(!((uintptr_t)pCur & 7), 1);
AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %RGv-%RGv %s\n", pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
AssertReleaseMsg( !pArgs->pPrevVirt
|| (pArgs->fLeftToRight ? pArgs->pPrevVirt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevVirt->Core.KeyLast > pCur->Core.Key),
("pPrevVirt=%p %RGv-%RGv %s\n"
" pCur=%p %RGv-%RGv %s\n",
pArgs->pPrevVirt, pArgs->pPrevVirt->Core.Key, pArgs->pPrevVirt->Core.KeyLast, pArgs->pPrevVirt->pszDesc,
pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc));
for (unsigned iPage = 0; iPage < pCur->cPages; iPage++)
{
AssertReleaseMsg(pCur->aPhysToVirt[iPage].offVirtHandler == -RT_OFFSETOF(PGMVIRTHANDLER, aPhysToVirt[iPage]),
("pCur=%p %RGv-%RGv %s\n"
"iPage=%d offVirtHandle=%#x expected %#x\n",
pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->pszDesc,
iPage, pCur->aPhysToVirt[iPage].offVirtHandler, -RT_OFFSETOF(PGMVIRTHANDLER, aPhysToVirt[iPage])));
}
pArgs->pPrevVirt = pCur;
return 0;
}
/**
* Validate a node in the virtual handler tree.
*
* @returns 0 on if ok, other wise 1.
* @param pNode The handler node.
* @param pvUser pVM.
*/
static DECLCALLBACK(int) pgmR3CheckIntegrityPhysToVirtHandlerNode(PAVLROGCPHYSNODECORE pNode, void *pvUser)
{
PPGMCHECKINTARGS pArgs = (PPGMCHECKINTARGS)pvUser;
PPGMPHYS2VIRTHANDLER pCur = (PPGMPHYS2VIRTHANDLER)pNode;
AssertReleaseMsgReturn(!((uintptr_t)pCur & 3), ("\n"), 1);
AssertReleaseMsgReturn(!(pCur->offVirtHandler & 3), ("\n"), 1);
AssertReleaseMsg(pCur->Core.Key <= pCur->Core.KeyLast,("pCur=%p %RGp-%RGp\n", pCur, pCur->Core.Key, pCur->Core.KeyLast));
AssertReleaseMsg( !pArgs->pPrevPhys2Virt
|| (pArgs->fLeftToRight ? pArgs->pPrevPhys2Virt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys2Virt->Core.KeyLast > pCur->Core.Key),
("pPrevPhys2Virt=%p %RGp-%RGp\n"
" pCur=%p %RGp-%RGp\n",
pArgs->pPrevPhys2Virt, pArgs->pPrevPhys2Virt->Core.Key, pArgs->pPrevPhys2Virt->Core.KeyLast,
pCur, pCur->Core.Key, pCur->Core.KeyLast));
AssertReleaseMsg( !pArgs->pPrevPhys2Virt
|| (pArgs->fLeftToRight ? pArgs->pPrevPhys2Virt->Core.KeyLast < pCur->Core.Key : pArgs->pPrevPhys2Virt->Core.KeyLast > pCur->Core.Key),
("pPrevPhys2Virt=%p %RGp-%RGp\n"
" pCur=%p %RGp-%RGp\n",
pArgs->pPrevPhys2Virt, pArgs->pPrevPhys2Virt->Core.Key, pArgs->pPrevPhys2Virt->Core.KeyLast,
pCur, pCur->Core.Key, pCur->Core.KeyLast));
AssertReleaseMsg((pCur->offNextAlias & (PGMPHYS2VIRTHANDLER_IN_TREE | PGMPHYS2VIRTHANDLER_IS_HEAD)) == (PGMPHYS2VIRTHANDLER_IN_TREE | PGMPHYS2VIRTHANDLER_IS_HEAD),
("pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias));
if (pCur->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK)
{
PPGMPHYS2VIRTHANDLER pCur2 = pCur;
for (;;)
{
pCur2 = (PPGMPHYS2VIRTHANDLER)((intptr_t)pCur + (pCur->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK));
AssertReleaseMsg(pCur2 != pCur,
(" pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias));
AssertReleaseMsg((pCur2->offNextAlias & (PGMPHYS2VIRTHANDLER_IN_TREE | PGMPHYS2VIRTHANDLER_IS_HEAD)) == PGMPHYS2VIRTHANDLER_IN_TREE,
(" pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
"pCur2=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias,
pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
AssertReleaseMsg((pCur2->Core.Key ^ pCur->Core.Key) < PAGE_SIZE,
(" pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
"pCur2=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias,
pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
AssertReleaseMsg((pCur2->Core.KeyLast ^ pCur->Core.KeyLast) < PAGE_SIZE,
(" pCur=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n"
"pCur2=%p:{.Core.Key=%RGp, .Core.KeyLast=%RGp, .offVirtHandler=%#RX32, .offNextAlias=%#RX32}\n",
pCur, pCur->Core.Key, pCur->Core.KeyLast, pCur->offVirtHandler, pCur->offNextAlias,
pCur2, pCur2->Core.Key, pCur2->Core.KeyLast, pCur2->offVirtHandler, pCur2->offNextAlias));
if (!(pCur2->offNextAlias & PGMPHYS2VIRTHANDLER_OFF_MASK))
break;
}
}
pArgs->pPrevPhys2Virt = pCur;
return 0;
}
/**
* Perform an integrity check on the PGM component.
*
* @returns VINF_SUCCESS if everything is fine.
* @returns VBox error status after asserting on integrity breach.
* @param pVM The VM handle.
*/
VMMR3DECL(int) PGMR3CheckIntegrity(PVM pVM)
{
AssertReleaseReturn(pVM->pgm.s.offVM, VERR_INTERNAL_ERROR);
/*
* Check the trees.
*/
int cErrors = 0;
const static PGMCHECKINTARGS s_LeftToRight = { true, NULL, NULL, NULL, pVM };
const static PGMCHECKINTARGS s_RightToLeft = { false, NULL, NULL, NULL, pVM };
PGMCHECKINTARGS Args = s_LeftToRight;
cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysHandlers, true, pgmR3CheckIntegrityPhysHandlerNode, &Args);
Args = s_RightToLeft;
cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysHandlers, false, pgmR3CheckIntegrityPhysHandlerNode, &Args);
Args = s_LeftToRight;
cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesR3->VirtHandlers, true, pgmR3CheckIntegrityVirtHandlerNode, &Args);
Args = s_RightToLeft;
cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesR3->VirtHandlers, false, pgmR3CheckIntegrityVirtHandlerNode, &Args);
Args = s_LeftToRight;
cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesR3->HyperVirtHandlers, true, pgmR3CheckIntegrityVirtHandlerNode, &Args);
Args = s_RightToLeft;
cErrors += RTAvlroGCPtrDoWithAll( &pVM->pgm.s.pTreesR3->HyperVirtHandlers, false, pgmR3CheckIntegrityVirtHandlerNode, &Args);
Args = s_LeftToRight;
cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysToVirtHandlers, true, pgmR3CheckIntegrityPhysToVirtHandlerNode, &Args);
Args = s_RightToLeft;
cErrors += RTAvlroGCPhysDoWithAll(&pVM->pgm.s.pTreesR3->PhysToVirtHandlers, false, pgmR3CheckIntegrityPhysToVirtHandlerNode, &Args);
return !cErrors ? VINF_SUCCESS : VERR_INTERNAL_ERROR;
}