SUPDrv.c revision 4343fdcc4add2ac76ddbd30a7ae7666699e9ccc0
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* $Revision$ */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/** @file
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * VBoxDrv - The VirtualBox Support Driver - Common code.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/*
e64031e20c39650a7bc902a3e1aba613b9415deevboxsync * Copyright (C) 2006-2007 Sun Microsystems, Inc.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync *
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * This file is part of VirtualBox Open Source Edition (OSE), as
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * available from http://www.virtualbox.org. This file is free software;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * you can redistribute it and/or modify it under the terms of the GNU
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * General Public License (GPL) as published by the Free Software
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Foundation, in version 2 as it comes in the "COPYING" file of the
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync *
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * The contents of this file may alternatively be used under the terms
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * of the Common Development and Distribution License Version 1.0
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * VirtualBox OSE distribution, in which case the provisions of the
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * CDDL are applicable instead of those of the GPL.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync *
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * You may elect to license modified versions of this file under the
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * terms and conditions of either the GPL or the CDDL or both.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync *
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Clara, CA 95054 USA or visit http://www.sun.com if you need
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * additional information or have any questions.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/*******************************************************************************
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync* Header Files *
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync*******************************************************************************/
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#define LOG_GROUP LOG_GROUP_SUP_DRV
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#include "SUPDrvInternal.h"
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#ifndef PAGE_SHIFT
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync# include <iprt/param.h>
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#endif
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#include <iprt/alloc.h>
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#include <iprt/semaphore.h>
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#include <iprt/spinlock.h>
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#include <iprt/thread.h>
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#include <iprt/process.h>
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#include <iprt/mp.h>
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#include <iprt/power.h>
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#include <iprt/cpuset.h>
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#include <iprt/uuid.h>
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#include <VBox/log.h>
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#include <VBox/err.h>
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#if defined(RT_OS_DARWIN) || defined(RT_OS_SOLARIS)
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync# include <iprt/crc32.h>
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync# include <iprt/net.h>
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#endif
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* VBox/x86.h not compatible with the Linux kernel sources */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#ifdef RT_OS_LINUX
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync# define X86_CPUID_VENDOR_AMD_EBX 0x68747541
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync# define X86_CPUID_VENDOR_AMD_ECX 0x444d4163
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync# define X86_CPUID_VENDOR_AMD_EDX 0x69746e65
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#else
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync# include <VBox/x86.h>
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#endif
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/*
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Logging assignments:
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Log - useful stuff, like failures.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * LogFlow - program flow, except the really noisy bits.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Log2 - Cleanup.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Log3 - Loader flow noise.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Log4 - Call VMMR0 flow noise.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Log5 - Native yet-to-be-defined noise.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Log6 - Native ioctl flow noise.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync *
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Logging requires BUILD_TYPE=debug and possibly changes to the logger
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * instanciation in log-vbox.c(pp).
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/*******************************************************************************
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync* Defined Constants And Macros *
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync*******************************************************************************/
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* from x86.h - clashes with linux thus this duplication */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#undef X86_CR0_PG
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#define X86_CR0_PG RT_BIT(31)
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#undef X86_CR0_PE
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#define X86_CR0_PE RT_BIT(0)
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#undef X86_CPUID_AMD_FEATURE_EDX_NX
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#define X86_CPUID_AMD_FEATURE_EDX_NX RT_BIT(20)
be196d173cf52fa33016912e4745dbe1170ac53avboxsync#undef MSR_K6_EFER
be196d173cf52fa33016912e4745dbe1170ac53avboxsync#define MSR_K6_EFER 0xc0000080
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#undef MSR_K6_EFER_NXE
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#define MSR_K6_EFER_NXE RT_BIT(11)
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#undef MSR_K6_EFER_LMA
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#define MSR_K6_EFER_LMA RT_BIT(10)
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#undef X86_CR4_PGE
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#define X86_CR4_PGE RT_BIT(7)
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#undef X86_CR4_PAE
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#define X86_CR4_PAE RT_BIT(5)
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#undef X86_CPUID_AMD_FEATURE_EDX_LONG_MODE
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#define X86_CPUID_AMD_FEATURE_EDX_LONG_MODE RT_BIT(29)
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/** The frequency by which we recalculate the u32UpdateHz and
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * u32UpdateIntervalNS GIP members. The value must be a power of 2. */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#define GIP_UPDATEHZ_RECALC_FREQ 0x800
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/**
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Validates a session pointer.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync *
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * @returns true/false accordingly.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * @param pSession The session.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#define SUP_IS_SESSION_VALID(pSession) \
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync ( VALID_PTR(pSession) \
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync && pSession->u32Cookie == BIRD_INV)
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/** @def VBOX_SVN_REV
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * The makefile should define this if it can. */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#ifndef VBOX_SVN_REV
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync# define VBOX_SVN_REV 0
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#endif
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
be196d173cf52fa33016912e4745dbe1170ac53avboxsync/*******************************************************************************
be196d173cf52fa33016912e4745dbe1170ac53avboxsync* Internal Functions *
be196d173cf52fa33016912e4745dbe1170ac53avboxsync*******************************************************************************/
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncstatic int supdrvMemAdd(PSUPDRVMEMREF pMem, PSUPDRVSESSION pSession);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncstatic int supdrvMemRelease(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr, SUPDRVMEMREFTYPE eType);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncstatic int supdrvIOCtl_LdrOpen(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDROPEN pReq);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncstatic int supdrvIOCtl_LdrLoad(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDRLOAD pReq);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncstatic int supdrvIOCtl_LdrFree(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDRFREE pReq);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncstatic int supdrvIOCtl_LdrGetSymbol(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDRGETSYMBOL pReq);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncstatic int supdrvIDC_LdrGetSymbol(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVIDCREQGETSYM pReq);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncstatic int supdrvLdrSetVMMR0EPs(PSUPDRVDEVEXT pDevExt, void *pvVMMR0, void *pvVMMR0EntryInt, void *pvVMMR0EntryFast, void *pvVMMR0EntryEx);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncstatic void supdrvLdrUnsetVMMR0EPs(PSUPDRVDEVEXT pDevExt);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncstatic int supdrvLdrAddUsage(PSUPDRVSESSION pSession, PSUPDRVLDRIMAGE pImage);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncstatic void supdrvLdrFree(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncstatic int supdrvIOCtl_CallServiceModule(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPCALLSERVICE pReq);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncstatic SUPGIPMODE supdrvGipDeterminTscMode(PSUPDRVDEVEXT pDevExt);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#ifdef RT_OS_WINDOWS
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncstatic int supdrvPageGetPhys(PSUPDRVSESSION pSession, RTR3PTR pvR3, uint32_t cPages, PRTHCPHYS paPages);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncstatic bool supdrvPageWasLockedByPageAlloc(PSUPDRVSESSION pSession, RTR3PTR pvR3);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#endif /* RT_OS_WINDOWS */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncstatic int supdrvGipCreate(PSUPDRVDEVEXT pDevExt);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncstatic void supdrvGipDestroy(PSUPDRVDEVEXT pDevExt);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncstatic DECLCALLBACK(void) supdrvGipSyncTimer(PRTTIMER pTimer, void *pvUser, uint64_t iTick);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncstatic DECLCALLBACK(void) supdrvGipAsyncTimer(PRTTIMER pTimer, void *pvUser, uint64_t iTick);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncstatic DECLCALLBACK(void) supdrvGipMpEvent(RTMPEVENT enmEvent, RTCPUID idCpu, void *pvUser);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#ifdef RT_WITH_W64_UNWIND_HACK
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) supdrvNtWrapVMMR0EntryEx(PFNRT pfnVMMR0EntryEx, PVM pVM, unsigned uOperation, PSUPVMMR0REQHDR pReq, uint64_t u64Arg, PSUPDRVSESSION pSession);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) supdrvNtWrapVMMR0EntryFast(PFNRT pfnVMMR0EntryFast, PVM pVM, unsigned idCpu, unsigned uOperation);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(void) supdrvNtWrapObjDestructor(PFNRT pfnDestruction, void *pvObj, void *pvUser1, void *pvUser2);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncDECLASM(void *) supdrvNtWrapQueryFactoryInterface(PFNRT pfnQueryFactoryInterface, struct SUPDRVFACTORY const *pSupDrvFactory, PSUPDRVSESSION pSession, const char *pszInterfaceUuid);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) supdrvNtWrapModuleInit(PFNRT pfnModuleInit);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(void) supdrvNtWrapModuleTerm(PFNRT pfnModuleTerm);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) supdrvNtWrapServiceReqHandler(PFNRT pfnServiceReqHandler, PSUPDRVSESSION pSession, uint32_t uOperation, uint64_t u64Arg, PSUPR0SERVICEREQHDR pReqHdr);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(SUPR0ComponentRegisterFactory)(PSUPDRVSESSION pSession, PCSUPDRVFACTORY pFactory);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncDECLASM(int) UNWIND_WRAP(SUPR0ComponentDeregisterFactory)(PSUPDRVSESSION pSession, PCSUPDRVFACTORY pFactory);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(SUPR0ComponentQueryFactory)(PSUPDRVSESSION pSession, const char *pszName, const char *pszInterfaceUuid, void **ppvFactoryIf);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncDECLASM(void *) UNWIND_WRAP(SUPR0ObjRegister)(PSUPDRVSESSION pSession, SUPDRVOBJTYPE enmType, PFNSUPDRVDESTRUCTOR pfnDestructor, void *pvUser1, void *pvUser2);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncDECLASM(int) UNWIND_WRAP(SUPR0ObjAddRef)(void *pvObj, PSUPDRVSESSION pSession);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(SUPR0ObjRelease)(void *pvObj, PSUPDRVSESSION pSession);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(SUPR0ObjVerifyAccess)(void *pvObj, PSUPDRVSESSION pSession, const char *pszObjName);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(SUPR0LockMem)(PSUPDRVSESSION pSession, RTR3PTR pvR3, uint32_t cPages, PRTHCPHYS paPages);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(SUPR0UnlockMem)(PSUPDRVSESSION pSession, RTR3PTR pvR3);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(SUPR0ContAlloc)(PSUPDRVSESSION pSession, uint32_t cPages, PRTR0PTR ppvR0, PRTR3PTR ppvR3, PRTHCPHYS pHCPhys);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(SUPR0ContFree)(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncDECLASM(int) UNWIND_WRAP(SUPR0LowAlloc)(PSUPDRVSESSION pSession, uint32_t cPages, PRTR0PTR ppvR0, PRTR3PTR ppvR3, PRTHCPHYS paPages);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(SUPR0LowFree)(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(SUPR0MemAlloc)(PSUPDRVSESSION pSession, uint32_t cb, PRTR0PTR ppvR0, PRTR3PTR ppvR3);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(SUPR0MemGetPhys)(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr, PSUPPAGE paPages);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(SUPR0MemFree)(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(SUPR0PageAlloc)(PSUPDRVSESSION pSession, uint32_t cPages, PRTR3PTR ppvR3, PRTHCPHYS paPages);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(SUPR0PageFree)(PSUPDRVSESSION pSession, RTR3PTR pvR3);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync//DECLASM(int) UNWIND_WRAP(SUPR0Printf)(const char *pszFormat, ...);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(SUPPAGINGMODE) UNWIND_WRAP(SUPR0GetPagingMode)(void);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(void *) UNWIND_WRAP(RTMemAlloc)(size_t cb) RT_NO_THROW;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(void *) UNWIND_WRAP(RTMemAllocZ)(size_t cb) RT_NO_THROW;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(void) UNWIND_WRAP(RTMemFree)(void *pv) RT_NO_THROW;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(void *) UNWIND_WRAP(RTMemDup)(const void *pvSrc, size_t cb) RT_NO_THROW;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(void *) UNWIND_WRAP(RTMemDupEx)(const void *pvSrc, size_t cbSrc, size_t cbExtra) RT_NO_THROW;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(void *) UNWIND_WRAP(RTMemRealloc)(void *pvOld, size_t cbNew) RT_NO_THROW;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTR0MemObjAllocLow)(PRTR0MEMOBJ pMemObj, size_t cb, bool fExecutable);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncDECLASM(int) UNWIND_WRAP(RTR0MemObjAllocPage)(PRTR0MEMOBJ pMemObj, size_t cb, bool fExecutable);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTR0MemObjAllocPhys)(PRTR0MEMOBJ pMemObj, size_t cb, RTHCPHYS PhysHighest);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTR0MemObjAllocPhysNC)(PRTR0MEMOBJ pMemObj, size_t cb, RTHCPHYS PhysHighest);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTR0MemObjAllocCont)(PRTR0MEMOBJ pMemObj, size_t cb, bool fExecutable);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTR0MemObjEnterPhys)(PRTR0MEMOBJ pMemObj, RTHCPHYS Phys, size_t cb);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTR0MemObjLockUser)(PRTR0MEMOBJ pMemObj, RTR3PTR R3Ptr, size_t cb, RTR0PROCESS R0Process);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTR0MemObjMapKernel)(PRTR0MEMOBJ pMemObj, RTR0MEMOBJ MemObjToMap, void *pvFixed, size_t uAlignment, unsigned fProt);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTR0MemObjMapUser)(PRTR0MEMOBJ pMemObj, RTR0MEMOBJ MemObjToMap, RTR3PTR R3PtrFixed, size_t uAlignment, unsigned fProt, RTR0PROCESS R0Process);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/*DECLASM(void *) UNWIND_WRAP(RTR0MemObjAddress)(RTR0MEMOBJ MemObj); - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/*DECLASM(RTR3PTR) UNWIND_WRAP(RTR0MemObjAddressR3)(RTR0MEMOBJ MemObj); - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/*DECLASM(size_t) UNWIND_WRAP(RTR0MemObjSize)(RTR0MEMOBJ MemObj); - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/*DECLASM(bool) UNWIND_WRAP(RTR0MemObjIsMapping)(RTR0MEMOBJ MemObj); - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/*DECLASM(RTHCPHYS) UNWIND_WRAP(RTR0MemObjGetPagePhysAddr)(RTR0MEMOBJ MemObj, size_t iPage); - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTR0MemObjFree)(RTR0MEMOBJ MemObj, bool fFreeMappings);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* RTProcSelf - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* RTR0ProcHandleSelf - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTSemFastMutexCreate)(PRTSEMFASTMUTEX pMutexSem);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTSemFastMutexDestroy)(RTSEMFASTMUTEX MutexSem);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTSemFastMutexRequest)(RTSEMFASTMUTEX MutexSem);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTSemFastMutexRelease)(RTSEMFASTMUTEX MutexSem);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTSemEventCreate)(PRTSEMEVENT pEventSem);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTSemEventSignal)(RTSEMEVENT EventSem);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTSemEventWait)(RTSEMEVENT EventSem, unsigned cMillies);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTSemEventWaitNoResume)(RTSEMEVENT EventSem, unsigned cMillies);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTSemEventDestroy)(RTSEMEVENT EventSem);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTSemEventMultiCreate)(PRTSEMEVENTMULTI pEventMultiSem);
88acfa6629a7976c0583c1712d2b5b22a87a5121vboxsyncDECLASM(int) UNWIND_WRAP(RTSemEventMultiSignal)(RTSEMEVENTMULTI EventMultiSem);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTSemEventMultiReset)(RTSEMEVENTMULTI EventMultiSem);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTSemEventMultiWait)(RTSEMEVENTMULTI EventMultiSem, unsigned cMillies);
88acfa6629a7976c0583c1712d2b5b22a87a5121vboxsyncDECLASM(int) UNWIND_WRAP(RTSemEventMultiWaitNoResume)(RTSEMEVENTMULTI EventMultiSem, unsigned cMillies);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTSemEventMultiDestroy)(RTSEMEVENTMULTI EventMultiSem);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTSpinlockCreate)(PRTSPINLOCK pSpinlock);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTSpinlockDestroy)(RTSPINLOCK Spinlock);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(void) UNWIND_WRAP(RTSpinlockAcquire)(RTSPINLOCK Spinlock, PRTSPINLOCKTMP pTmp);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(void) UNWIND_WRAP(RTSpinlockRelease)(RTSPINLOCK Spinlock, PRTSPINLOCKTMP pTmp);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(void) UNWIND_WRAP(RTSpinlockAcquireNoInts)(RTSPINLOCK Spinlock, PRTSPINLOCKTMP pTmp);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncDECLASM(void) UNWIND_WRAP(RTSpinlockReleaseNoInts)(RTSPINLOCK Spinlock, PRTSPINLOCKTMP pTmp);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* RTTimeNanoTS - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* RTTimeMilliTS - not necessary */
eab872ee272cc9e799e0b68735b660deb84b8629vboxsync/* RTTimeSystemNanoTS - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* RTTimeSystemMilliTS - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* RTThreadNativeSelf - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTThreadSleep)(unsigned cMillies);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(bool) UNWIND_WRAP(RTThreadYield)(void);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#if 0
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* RTThreadSelf - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTThreadCreate)(PRTTHREAD pThread, PFNRTTHREAD pfnThread, void *pvUser, size_t cbStack,
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync RTTHREADTYPE enmType, unsigned fFlags, const char *pszName);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(RTNATIVETHREAD) UNWIND_WRAP(RTThreadGetNative)(RTTHREAD Thread);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTThreadWait)(RTTHREAD Thread, unsigned cMillies, int *prc);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTThreadWaitNoResume)(RTTHREAD Thread, unsigned cMillies, int *prc);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(const char *) UNWIND_WRAP(RTThreadGetName)(RTTHREAD Thread);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(const char *) UNWIND_WRAP(RTThreadSelfName)(void);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(RTTHREADTYPE) UNWIND_WRAP(RTThreadGetType)(RTTHREAD Thread);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncDECLASM(int) UNWIND_WRAP(RTThreadUserSignal)(RTTHREAD Thread);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTThreadUserReset)(RTTHREAD Thread);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTThreadUserWait)(RTTHREAD Thread, unsigned cMillies);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTThreadUserWaitNoResume)(RTTHREAD Thread, unsigned cMillies);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#endif
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* RTLogDefaultInstance - a bit of a gamble, but we do not want the overhead! */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* RTMpCpuId - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* RTMpCpuIdFromSetIndex - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* RTMpCpuIdToSetIndex - not necessary */
be196d173cf52fa33016912e4745dbe1170ac53avboxsync/* RTMpIsCpuPossible - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* RTMpGetCount - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* RTMpGetMaxCpuId - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* RTMpGetOnlineCount - not necessary */
be196d173cf52fa33016912e4745dbe1170ac53avboxsync/* RTMpGetOnlineSet - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* RTMpGetSet - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* RTMpIsCpuOnline - not necessary */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTMpOnAll)(PFNRTMPWORKER pfnWorker, void *pvUser1, void *pvUser2);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTMpOnOthers)(PFNRTMPWORKER pfnWorker, void *pvUser1, void *pvUser2);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTMpOnSpecific)(RTCPUID idCpu, PFNRTMPWORKER pfnWorker, void *pvUser1, void *pvUser2);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* RTLogRelDefaultInstance - not necessary. */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(int) UNWIND_WRAP(RTLogSetDefaultInstanceThread)(PRTLOGGER pLogger, uintptr_t uKey);
be196d173cf52fa33016912e4745dbe1170ac53avboxsync/* RTLogLogger - can't wrap this buster. */
be196d173cf52fa33016912e4745dbe1170ac53avboxsync/* RTLogLoggerEx - can't wrap this buster. */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncDECLASM(void) UNWIND_WRAP(RTLogLoggerExV)(PRTLOGGER pLogger, unsigned fFlags, unsigned iGroup, const char *pszFormat, va_list args);
be196d173cf52fa33016912e4745dbe1170ac53avboxsync/* RTLogPrintf - can't wrap this buster. */ /** @todo provide va_list log wrappers in RuntimeR0. */
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncDECLASM(void) UNWIND_WRAP(RTLogPrintfV)(const char *pszFormat, va_list args);
be196d173cf52fa33016912e4745dbe1170ac53avboxsyncDECLASM(void) UNWIND_WRAP(AssertMsg1)(const char *pszExpr, unsigned uLine, const char *pszFile, const char *pszFunction);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* AssertMsg2 - can't wrap this buster. */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#endif /* RT_WITH_W64_UNWIND_HACK */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/*******************************************************************************
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync* Global Variables *
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync*******************************************************************************/
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/**
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Array of the R0 SUP API.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncstatic SUPFUNC g_aFunctions[] =
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync{
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync /* name function */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0ComponentRegisterFactory", (void *)UNWIND_WRAP(SUPR0ComponentRegisterFactory) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0ComponentDeregisterFactory", (void *)UNWIND_WRAP(SUPR0ComponentDeregisterFactory) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0ComponentQueryFactory", (void *)UNWIND_WRAP(SUPR0ComponentQueryFactory) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0ObjRegister", (void *)UNWIND_WRAP(SUPR0ObjRegister) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0ObjAddRef", (void *)UNWIND_WRAP(SUPR0ObjAddRef) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0ObjRelease", (void *)UNWIND_WRAP(SUPR0ObjRelease) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0ObjVerifyAccess", (void *)UNWIND_WRAP(SUPR0ObjVerifyAccess) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0LockMem", (void *)UNWIND_WRAP(SUPR0LockMem) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0UnlockMem", (void *)UNWIND_WRAP(SUPR0UnlockMem) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0ContAlloc", (void *)UNWIND_WRAP(SUPR0ContAlloc) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0ContFree", (void *)UNWIND_WRAP(SUPR0ContFree) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0LowAlloc", (void *)UNWIND_WRAP(SUPR0LowAlloc) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0LowFree", (void *)UNWIND_WRAP(SUPR0LowFree) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0MemAlloc", (void *)UNWIND_WRAP(SUPR0MemAlloc) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0MemGetPhys", (void *)UNWIND_WRAP(SUPR0MemGetPhys) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0MemFree", (void *)UNWIND_WRAP(SUPR0MemFree) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0PageAlloc", (void *)UNWIND_WRAP(SUPR0PageAlloc) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0PageFree", (void *)UNWIND_WRAP(SUPR0PageFree) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0Printf", (void *)SUPR0Printf }, /** @todo needs wrapping? */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "SUPR0GetPagingMode", (void *)UNWIND_WRAP(SUPR0GetPagingMode) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTMemAlloc", (void *)UNWIND_WRAP(RTMemAlloc) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTMemAllocZ", (void *)UNWIND_WRAP(RTMemAllocZ) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTMemFree", (void *)UNWIND_WRAP(RTMemFree) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync /*{ "RTMemDup", (void *)UNWIND_WRAP(RTMemDup) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTMemDupEx", (void *)UNWIND_WRAP(RTMemDupEx) },*/
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTMemRealloc", (void *)UNWIND_WRAP(RTMemRealloc) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTR0MemObjAllocLow", (void *)UNWIND_WRAP(RTR0MemObjAllocLow) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTR0MemObjAllocPage", (void *)UNWIND_WRAP(RTR0MemObjAllocPage) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTR0MemObjAllocPhys", (void *)UNWIND_WRAP(RTR0MemObjAllocPhys) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTR0MemObjAllocPhysNC", (void *)UNWIND_WRAP(RTR0MemObjAllocPhysNC) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTR0MemObjAllocCont", (void *)UNWIND_WRAP(RTR0MemObjAllocCont) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTR0MemObjEnterPhys", (void *)UNWIND_WRAP(RTR0MemObjEnterPhys) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTR0MemObjLockUser", (void *)UNWIND_WRAP(RTR0MemObjLockUser) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTR0MemObjMapKernel", (void *)UNWIND_WRAP(RTR0MemObjMapKernel) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTR0MemObjMapUser", (void *)UNWIND_WRAP(RTR0MemObjMapUser) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTR0MemObjAddress", (void *)RTR0MemObjAddress },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTR0MemObjAddressR3", (void *)RTR0MemObjAddressR3 },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTR0MemObjSize", (void *)RTR0MemObjSize },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTR0MemObjIsMapping", (void *)RTR0MemObjIsMapping },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTR0MemObjGetPagePhysAddr", (void *)RTR0MemObjGetPagePhysAddr },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTR0MemObjFree", (void *)UNWIND_WRAP(RTR0MemObjFree) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/* These don't work yet on linux - use fast mutexes!
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSemMutexCreate", (void *)RTSemMutexCreate },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSemMutexRequest", (void *)RTSemMutexRequest },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSemMutexRelease", (void *)RTSemMutexRelease },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSemMutexDestroy", (void *)RTSemMutexDestroy },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync*/
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTProcSelf", (void *)RTProcSelf },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTR0ProcHandleSelf", (void *)RTR0ProcHandleSelf },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSemFastMutexCreate", (void *)UNWIND_WRAP(RTSemFastMutexCreate) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSemFastMutexDestroy", (void *)UNWIND_WRAP(RTSemFastMutexDestroy) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSemFastMutexRequest", (void *)UNWIND_WRAP(RTSemFastMutexRequest) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSemFastMutexRelease", (void *)UNWIND_WRAP(RTSemFastMutexRelease) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSemEventCreate", (void *)UNWIND_WRAP(RTSemEventCreate) },
be196d173cf52fa33016912e4745dbe1170ac53avboxsync { "RTSemEventSignal", (void *)UNWIND_WRAP(RTSemEventSignal) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSemEventWait", (void *)UNWIND_WRAP(RTSemEventWait) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSemEventWaitNoResume", (void *)UNWIND_WRAP(RTSemEventWaitNoResume) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSemEventDestroy", (void *)UNWIND_WRAP(RTSemEventDestroy) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSemEventMultiCreate", (void *)UNWIND_WRAP(RTSemEventMultiCreate) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSemEventMultiSignal", (void *)UNWIND_WRAP(RTSemEventMultiSignal) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSemEventMultiReset", (void *)UNWIND_WRAP(RTSemEventMultiReset) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSemEventMultiWait", (void *)UNWIND_WRAP(RTSemEventMultiWait) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSemEventMultiWaitNoResume", (void *)UNWIND_WRAP(RTSemEventMultiWaitNoResume) },
27de6b7fcf72c0add242c8dbefff24fbdc7869ebvboxsync { "RTSemEventMultiDestroy", (void *)UNWIND_WRAP(RTSemEventMultiDestroy) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSpinlockCreate", (void *)UNWIND_WRAP(RTSpinlockCreate) },
78817f40cd3fec6cba19ad8a2df2a690970c5895vboxsync { "RTSpinlockDestroy", (void *)UNWIND_WRAP(RTSpinlockDestroy) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSpinlockAcquire", (void *)UNWIND_WRAP(RTSpinlockAcquire) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSpinlockRelease", (void *)UNWIND_WRAP(RTSpinlockRelease) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSpinlockAcquireNoInts", (void *)UNWIND_WRAP(RTSpinlockAcquireNoInts) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTSpinlockReleaseNoInts", (void *)UNWIND_WRAP(RTSpinlockReleaseNoInts) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTTimeNanoTS", (void *)RTTimeNanoTS },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTTimeMillieTS", (void *)RTTimeMilliTS },
0aa150e34ed49f14aaa37368c2e6999ec89e5f43vboxsync { "RTTimeSystemNanoTS", (void *)RTTimeSystemNanoTS },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTTimeSystemMillieTS", (void *)RTTimeSystemMilliTS },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTThreadNativeSelf", (void *)RTThreadNativeSelf },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTThreadSleep", (void *)UNWIND_WRAP(RTThreadSleep) },
0aa150e34ed49f14aaa37368c2e6999ec89e5f43vboxsync { "RTThreadYield", (void *)UNWIND_WRAP(RTThreadYield) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#if 0 /* Thread APIs, Part 2. */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTThreadSelf", (void *)UNWIND_WRAP(RTThreadSelf) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTThreadCreate", (void *)UNWIND_WRAP(RTThreadCreate) }, /** @todo need to wrap the callback */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTThreadGetNative", (void *)UNWIND_WRAP(RTThreadGetNative) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTThreadWait", (void *)UNWIND_WRAP(RTThreadWait) },
0aa150e34ed49f14aaa37368c2e6999ec89e5f43vboxsync { "RTThreadWaitNoResume", (void *)UNWIND_WRAP(RTThreadWaitNoResume) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTThreadGetName", (void *)UNWIND_WRAP(RTThreadGetName) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTThreadSelfName", (void *)UNWIND_WRAP(RTThreadSelfName) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTThreadGetType", (void *)UNWIND_WRAP(RTThreadGetType) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTThreadUserSignal", (void *)UNWIND_WRAP(RTThreadUserSignal) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTThreadUserReset", (void *)UNWIND_WRAP(RTThreadUserReset) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTThreadUserWait", (void *)UNWIND_WRAP(RTThreadUserWait) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTThreadUserWaitNoResume", (void *)UNWIND_WRAP(RTThreadUserWaitNoResume) },
be196d173cf52fa33016912e4745dbe1170ac53avboxsync#endif
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTLogDefaultInstance", (void *)RTLogDefaultInstance },
be196d173cf52fa33016912e4745dbe1170ac53avboxsync { "RTMpCpuId", (void *)RTMpCpuId },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTMpCpuIdFromSetIndex", (void *)RTMpCpuIdFromSetIndex },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTMpCpuIdToSetIndex", (void *)RTMpCpuIdToSetIndex },
be196d173cf52fa33016912e4745dbe1170ac53avboxsync { "RTMpIsCpuPossible", (void *)RTMpIsCpuPossible },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTMpGetCount", (void *)RTMpGetCount },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTMpGetMaxCpuId", (void *)RTMpGetMaxCpuId },
27de6b7fcf72c0add242c8dbefff24fbdc7869ebvboxsync { "RTMpGetOnlineCount", (void *)RTMpGetOnlineCount },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTMpGetOnlineSet", (void *)RTMpGetOnlineSet },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTMpGetSet", (void *)RTMpGetSet },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTMpIsCpuOnline", (void *)RTMpIsCpuOnline },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTMpOnAll", (void *)UNWIND_WRAP(RTMpOnAll) },
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync { "RTMpOnOthers", (void *)UNWIND_WRAP(RTMpOnOthers) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTMpOnSpecific", (void *)UNWIND_WRAP(RTMpOnSpecific) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTPowerNotificationRegister", (void *)RTPowerNotificationRegister },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTPowerNotificationDeregister", (void *)RTPowerNotificationDeregister },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTLogRelDefaultInstance", (void *)RTLogRelDefaultInstance },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTLogSetDefaultInstanceThread", (void *)UNWIND_WRAP(RTLogSetDefaultInstanceThread) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTLogLogger", (void *)RTLogLogger }, /** @todo remove this */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTLogLoggerEx", (void *)RTLogLoggerEx }, /** @todo remove this */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTLogLoggerExV", (void *)UNWIND_WRAP(RTLogLoggerExV) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTLogPrintf", (void *)RTLogPrintf }, /** @todo remove this */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTLogPrintfV", (void *)UNWIND_WRAP(RTLogPrintfV) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "AssertMsg1", (void *)UNWIND_WRAP(AssertMsg1) },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "AssertMsg2", (void *)AssertMsg2 }, /** @todo replace this by RTAssertMsg2V */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#if defined(RT_OS_DARWIN) || defined(RT_OS_SOLARIS)
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTR0AssertPanicSystem", (void *)RTR0AssertPanicSystem },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#endif
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#if defined(RT_OS_DARWIN)
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTAssertMsg1", (void *)RTAssertMsg1 },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTAssertMsg2", (void *)RTAssertMsg2 },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync { "RTAssertMsg2V", (void *)RTAssertMsg2V },
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#endif
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync};
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#if defined(RT_OS_DARWIN) || defined(RT_OS_SOLARIS)
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/**
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Drag in the rest of IRPT since we share it with the
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * rest of the kernel modules on darwin.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncPFNRT g_apfnVBoxDrvIPRTDeps[] =
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync{
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync (PFNRT)RTCrc32,
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync (PFNRT)RTErrConvertFromErrno,
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync (PFNRT)RTNetIPv4IsHdrValid,
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync (PFNRT)RTNetIPv4TCPChecksum,
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync (PFNRT)RTNetIPv4UDPChecksum,
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync (PFNRT)RTUuidCompare,
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync (PFNRT)RTUuidCompareStr,
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync (PFNRT)RTUuidFromStr,
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync NULL
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync};
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync#endif /* RT_OS_DARWIN || RT_OS_SOLARIS */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/**
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Initializes the device extentsion structure.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync *
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * @returns IPRT status code.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * @param pDevExt The device extension to initialize.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncint VBOXCALL supdrvInitDevExt(PSUPDRVDEVEXT pDevExt)
f2ffcc39cf4469a87fea28faf36a3918493bf7c1vboxsync{
f2ffcc39cf4469a87fea28faf36a3918493bf7c1vboxsync int rc;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
f2ffcc39cf4469a87fea28faf36a3918493bf7c1vboxsync#ifdef SUPDRV_WITH_RELEASE_LOGGER
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync /*
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Create the release log.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync static const char * const s_apszGroups[] = VBOX_LOGGROUP_NAMES;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync PRTLOGGER pRelLogger;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync rc = RTLogCreate(&pRelLogger, 0 /* fFlags */, "all",
f2ffcc39cf4469a87fea28faf36a3918493bf7c1vboxsync "VBOX_RELEASE_LOG", RT_ELEMENTS(s_apszGroups), s_apszGroups,
e41b10cedab46ca3ff69b2db87291a74ec1ddd61vboxsync RTLOGDEST_STDOUT | RTLOGDEST_DEBUGGER, NULL);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync if (RT_SUCCESS(rc))
f2ffcc39cf4469a87fea28faf36a3918493bf7c1vboxsync RTLogRelSetDefaultInstance(pRelLogger);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#endif
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync /*
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync * Initialize it.
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync */
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync memset(pDevExt, 0, sizeof(*pDevExt));
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync rc = RTSpinlockCreate(&pDevExt->Spinlock);
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync if (!rc)
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync {
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync rc = RTSemFastMutexCreate(&pDevExt->mtxLdr);
f2ffcc39cf4469a87fea28faf36a3918493bf7c1vboxsync if (!rc)
f2ffcc39cf4469a87fea28faf36a3918493bf7c1vboxsync {
f2ffcc39cf4469a87fea28faf36a3918493bf7c1vboxsync rc = RTSemFastMutexCreate(&pDevExt->mtxComponentFactory);
f2ffcc39cf4469a87fea28faf36a3918493bf7c1vboxsync if (!rc)
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync {
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync rc = RTSemFastMutexCreate(&pDevExt->mtxGip);
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync if (!rc)
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync {
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync rc = supdrvGipCreate(pDevExt);
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync if (RT_SUCCESS(rc))
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync {
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync pDevExt->u32Cookie = BIRD; /** @todo make this random? */
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync return VINF_SUCCESS;
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync }
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync RTSemFastMutexDestroy(pDevExt->mtxGip);
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync pDevExt->mtxGip = NIL_RTSEMFASTMUTEX;
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync }
b79e4344bf4eb8033fd06d560cd864192728bd0bvboxsync RTSemFastMutexDestroy(pDevExt->mtxComponentFactory);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync pDevExt->mtxComponentFactory = NIL_RTSEMFASTMUTEX;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync }
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync RTSemFastMutexDestroy(pDevExt->mtxLdr);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync pDevExt->mtxLdr = NIL_RTSEMFASTMUTEX;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync }
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync RTSpinlockDestroy(pDevExt->Spinlock);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync pDevExt->Spinlock = NIL_RTSPINLOCK;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync }
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#ifdef SUPDRV_WITH_RELEASE_LOGGER
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync RTLogDestroy(RTLogRelSetDefaultInstance(NULL));
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync RTLogDestroy(RTLogSetDefaultInstance(NULL));
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync#endif
6757b795f7bfac39777e1e86a49fa120f86def25vboxsync
6757b795f7bfac39777e1e86a49fa120f86def25vboxsync return rc;
6757b795f7bfac39777e1e86a49fa120f86def25vboxsync}
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync/**
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Delete the device extension (e.g. cleanup members).
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync *
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * @param pDevExt The device extension to delete.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsyncvoid VBOXCALL supdrvDeleteDevExt(PSUPDRVDEVEXT pDevExt)
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync{
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync PSUPDRVOBJ pObj;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync PSUPDRVUSAGE pUsage;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync /*
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Kill mutexes and spinlocks.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync RTSemFastMutexDestroy(pDevExt->mtxGip);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync pDevExt->mtxGip = NIL_RTSEMFASTMUTEX;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync RTSemFastMutexDestroy(pDevExt->mtxLdr);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync pDevExt->mtxLdr = NIL_RTSEMFASTMUTEX;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync RTSpinlockDestroy(pDevExt->Spinlock);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync pDevExt->Spinlock = NIL_RTSPINLOCK;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync RTSemFastMutexDestroy(pDevExt->mtxComponentFactory);
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync pDevExt->mtxComponentFactory = NIL_RTSEMFASTMUTEX;
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync /*
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync * Free lists.
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync /* objects. */
922f46b2f42ccb05e3c9cba34bbd1d2c19e04120vboxsync pObj = pDevExt->pObjs;
#if !defined(DEBUG_bird) || !defined(RT_OS_LINUX) /* breaks unloading, temporary, remove me! */
Assert(!pObj); /* (can trigger on forced unloads) */
#endif
pDevExt->pObjs = NULL;
while (pObj)
{
void *pvFree = pObj;
pObj = pObj->pNext;
RTMemFree(pvFree);
}
/* usage records. */
pUsage = pDevExt->pUsageFree;
pDevExt->pUsageFree = NULL;
while (pUsage)
{
void *pvFree = pUsage;
pUsage = pUsage->pNext;
RTMemFree(pvFree);
}
/* kill the GIP. */
supdrvGipDestroy(pDevExt);
#ifdef SUPDRV_WITH_RELEASE_LOGGER
/* destroy the loggers. */
RTLogDestroy(RTLogRelSetDefaultInstance(NULL));
RTLogDestroy(RTLogSetDefaultInstance(NULL));
#endif
}
/**
* Create session.
*
* @returns IPRT status code.
* @param pDevExt Device extension.
* @param fUser Flag indicating whether this is a user or kernel session.
* @param ppSession Where to store the pointer to the session data.
*/
int VBOXCALL supdrvCreateSession(PSUPDRVDEVEXT pDevExt, bool fUser, PSUPDRVSESSION *ppSession)
{
/*
* Allocate memory for the session data.
*/
int rc = VERR_NO_MEMORY;
PSUPDRVSESSION pSession = *ppSession = (PSUPDRVSESSION)RTMemAllocZ(sizeof(*pSession));
if (pSession)
{
/* Initialize session data. */
rc = RTSpinlockCreate(&pSession->Spinlock);
if (!rc)
{
Assert(pSession->Spinlock != NIL_RTSPINLOCK);
pSession->pDevExt = pDevExt;
pSession->u32Cookie = BIRD_INV;
/*pSession->pLdrUsage = NULL;
pSession->pVM = NULL;
pSession->pUsage = NULL;
pSession->pGip = NULL;
pSession->fGipReferenced = false;
pSession->Bundle.cUsed = 0; */
pSession->Uid = NIL_RTUID;
pSession->Gid = NIL_RTGID;
if (fUser)
{
pSession->Process = RTProcSelf();
pSession->R0Process = RTR0ProcHandleSelf();
}
else
{
pSession->Process = NIL_RTPROCESS;
pSession->R0Process = NIL_RTR0PROCESS;
}
LogFlow(("Created session %p initial cookie=%#x\n", pSession, pSession->u32Cookie));
return VINF_SUCCESS;
}
RTMemFree(pSession);
*ppSession = NULL;
Log(("Failed to create spinlock, rc=%d!\n", rc));
}
return rc;
}
/**
* Shared code for cleaning up a session.
*
* @param pDevExt Device extension.
* @param pSession Session data.
* This data will be freed by this routine.
*/
void VBOXCALL supdrvCloseSession(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession)
{
/*
* Cleanup the session first.
*/
supdrvCleanupSession(pDevExt, pSession);
/*
* Free the rest of the session stuff.
*/
RTSpinlockDestroy(pSession->Spinlock);
pSession->Spinlock = NIL_RTSPINLOCK;
pSession->pDevExt = NULL;
RTMemFree(pSession);
LogFlow(("supdrvCloseSession: returns\n"));
}
/**
* Shared code for cleaning up a session (but not quite freeing it).
*
* This is primarily intended for MAC OS X where we have to clean up the memory
* stuff before the file handle is closed.
*
* @param pDevExt Device extension.
* @param pSession Session data.
* This data will be freed by this routine.
*/
void VBOXCALL supdrvCleanupSession(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession)
{
PSUPDRVBUNDLE pBundle;
LogFlow(("supdrvCleanupSession: pSession=%p\n", pSession));
/*
* Remove logger instances related to this session.
*/
RTLogSetDefaultInstanceThread(NULL, (uintptr_t)pSession);
/*
* Release object references made in this session.
* In theory there should be noone racing us in this session.
*/
Log2(("release objects - start\n"));
if (pSession->pUsage)
{
RTSPINLOCKTMP SpinlockTmp = RTSPINLOCKTMP_INITIALIZER;
PSUPDRVUSAGE pUsage;
RTSpinlockAcquire(pDevExt->Spinlock, &SpinlockTmp);
while ((pUsage = pSession->pUsage) != NULL)
{
PSUPDRVOBJ pObj = pUsage->pObj;
pSession->pUsage = pUsage->pNext;
AssertMsg(pUsage->cUsage >= 1 && pObj->cUsage >= pUsage->cUsage, ("glob %d; sess %d\n", pObj->cUsage, pUsage->cUsage));
if (pUsage->cUsage < pObj->cUsage)
{
pObj->cUsage -= pUsage->cUsage;
RTSpinlockRelease(pDevExt->Spinlock, &SpinlockTmp);
}
else
{
/* Destroy the object and free the record. */
if (pDevExt->pObjs == pObj)
pDevExt->pObjs = pObj->pNext;
else
{
PSUPDRVOBJ pObjPrev;
for (pObjPrev = pDevExt->pObjs; pObjPrev; pObjPrev = pObjPrev->pNext)
if (pObjPrev->pNext == pObj)
{
pObjPrev->pNext = pObj->pNext;
break;
}
Assert(pObjPrev);
}
RTSpinlockRelease(pDevExt->Spinlock, &SpinlockTmp);
Log(("supdrvCleanupSession: destroying %p/%d (%p/%p) cpid=%RTproc pid=%RTproc dtor=%p\n",
pObj, pObj->enmType, pObj->pvUser1, pObj->pvUser2, pObj->CreatorProcess, RTProcSelf(), pObj->pfnDestructor));
if (pObj->pfnDestructor)
#ifdef RT_WITH_W64_UNWIND_HACK
supdrvNtWrapObjDestructor((PFNRT)pObj->pfnDestructor, pObj, pObj->pvUser1, pObj->pvUser2);
#else
pObj->pfnDestructor(pObj, pObj->pvUser1, pObj->pvUser2);
#endif
RTMemFree(pObj);
}
/* free it and continue. */
RTMemFree(pUsage);
RTSpinlockAcquire(pDevExt->Spinlock, &SpinlockTmp);
}
RTSpinlockRelease(pDevExt->Spinlock, &SpinlockTmp);
AssertMsg(!pSession->pUsage, ("Some buster reregistered an object during desturction!\n"));
}
Log2(("release objects - done\n"));
/*
* Release memory allocated in the session.
*
* We do not serialize this as we assume that the application will
* not allocated memory while closing the file handle object.
*/
Log2(("freeing memory:\n"));
pBundle = &pSession->Bundle;
while (pBundle)
{
PSUPDRVBUNDLE pToFree;
unsigned i;
/*
* Check and unlock all entries in the bundle.
*/
for (i = 0; i < RT_ELEMENTS(pBundle->aMem); i++)
{
if (pBundle->aMem[i].MemObj != NIL_RTR0MEMOBJ)
{
int rc;
Log2(("eType=%d pvR0=%p pvR3=%p cb=%ld\n", pBundle->aMem[i].eType, RTR0MemObjAddress(pBundle->aMem[i].MemObj),
(void *)RTR0MemObjAddressR3(pBundle->aMem[i].MapObjR3), (long)RTR0MemObjSize(pBundle->aMem[i].MemObj)));
if (pBundle->aMem[i].MapObjR3 != NIL_RTR0MEMOBJ)
{
rc = RTR0MemObjFree(pBundle->aMem[i].MapObjR3, false);
AssertRC(rc); /** @todo figure out how to handle this. */
pBundle->aMem[i].MapObjR3 = NIL_RTR0MEMOBJ;
}
rc = RTR0MemObjFree(pBundle->aMem[i].MemObj, false);
AssertRC(rc); /** @todo figure out how to handle this. */
pBundle->aMem[i].MemObj = NIL_RTR0MEMOBJ;
pBundle->aMem[i].eType = MEMREF_TYPE_UNUSED;
}
}
/*
* Advance and free previous bundle.
*/
pToFree = pBundle;
pBundle = pBundle->pNext;
pToFree->pNext = NULL;
pToFree->cUsed = 0;
if (pToFree != &pSession->Bundle)
RTMemFree(pToFree);
}
Log2(("freeing memory - done\n"));
/*
* Deregister component factories.
*/
RTSemFastMutexRequest(pDevExt->mtxComponentFactory);
Log2(("deregistering component factories:\n"));
if (pDevExt->pComponentFactoryHead)
{
PSUPDRVFACTORYREG pPrev = NULL;
PSUPDRVFACTORYREG pCur = pDevExt->pComponentFactoryHead;
while (pCur)
{
if (pCur->pSession == pSession)
{
/* unlink it */
PSUPDRVFACTORYREG pNext = pCur->pNext;
if (pPrev)
pPrev->pNext = pNext;
else
pDevExt->pComponentFactoryHead = pNext;
/* free it */
pCur->pNext = NULL;
pCur->pSession = NULL;
pCur->pFactory = NULL;
RTMemFree(pCur);
/* next */
pCur = pNext;
}
else
{
/* next */
pPrev = pCur;
pCur = pCur->pNext;
}
}
}
RTSemFastMutexRelease(pDevExt->mtxComponentFactory);
Log2(("deregistering component factories - done\n"));
/*
* Loaded images needs to be dereferenced and possibly freed up.
*/
RTSemFastMutexRequest(pDevExt->mtxLdr);
Log2(("freeing images:\n"));
if (pSession->pLdrUsage)
{
PSUPDRVLDRUSAGE pUsage = pSession->pLdrUsage;
pSession->pLdrUsage = NULL;
while (pUsage)
{
void *pvFree = pUsage;
PSUPDRVLDRIMAGE pImage = pUsage->pImage;
if (pImage->cUsage > pUsage->cUsage)
pImage->cUsage -= pUsage->cUsage;
else
supdrvLdrFree(pDevExt, pImage);
pUsage->pImage = NULL;
pUsage = pUsage->pNext;
RTMemFree(pvFree);
}
}
RTSemFastMutexRelease(pDevExt->mtxLdr);
Log2(("freeing images - done\n"));
/*
* Unmap the GIP.
*/
Log2(("umapping GIP:\n"));
if (pSession->GipMapObjR3 != NIL_RTR0MEMOBJ)
{
SUPR0GipUnmap(pSession);
pSession->fGipReferenced = 0;
}
Log2(("umapping GIP - done\n"));
}
/**
* Fast path I/O Control worker.
*
* @returns VBox status code that should be passed down to ring-3 unchanged.
* @param uIOCtl Function number.
* @param idCpu VMCPU id.
* @param pDevExt Device extention.
* @param pSession Session data.
*/
int VBOXCALL supdrvIOCtlFast(uintptr_t uIOCtl, unsigned idCpu, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession)
{
/*
* We check the two prereqs after doing this only to allow the compiler to optimize things better.
*/
if (RT_LIKELY(pSession->pVM && pDevExt->pfnVMMR0EntryFast))
{
switch (uIOCtl)
{
case SUP_IOCTL_FAST_DO_RAW_RUN:
#ifdef RT_WITH_W64_UNWIND_HACK
supdrvNtWrapVMMR0EntryFast((PFNRT)pDevExt->pfnVMMR0EntryFast, pSession->pVM, idCpu, SUP_VMMR0_DO_RAW_RUN);
#else
pDevExt->pfnVMMR0EntryFast(pSession->pVM, idCpu, SUP_VMMR0_DO_RAW_RUN);
#endif
break;
case SUP_IOCTL_FAST_DO_HWACC_RUN:
#ifdef RT_WITH_W64_UNWIND_HACK
supdrvNtWrapVMMR0EntryFast((PFNRT)pDevExt->pfnVMMR0EntryFast, pSession->pVM, idCpu, SUP_VMMR0_DO_HWACC_RUN);
#else
pDevExt->pfnVMMR0EntryFast(pSession->pVM, idCpu, SUP_VMMR0_DO_HWACC_RUN);
#endif
break;
case SUP_IOCTL_FAST_DO_NOP:
#ifdef RT_WITH_W64_UNWIND_HACK
supdrvNtWrapVMMR0EntryFast((PFNRT)pDevExt->pfnVMMR0EntryFast, pSession->pVM, idCpu, SUP_VMMR0_DO_NOP);
#else
pDevExt->pfnVMMR0EntryFast(pSession->pVM, idCpu, SUP_VMMR0_DO_NOP);
#endif
break;
default:
return VERR_INTERNAL_ERROR;
}
return VINF_SUCCESS;
}
return VERR_INTERNAL_ERROR;
}
/**
* Helper for supdrvIOCtl. Check if pszStr contains any character of pszChars.
* We would use strpbrk here if this function would be contained in the RedHat kABI white
* list, see http://www.kerneldrivers.org/RHEL5.
*
* @return 1 if pszStr does contain any character of pszChars, 0 otherwise.
* @param pszStr String to check
* @param pszChars Character set
*/
static int supdrvCheckInvalidChar(const char *pszStr, const char *pszChars)
{
int chCur;
while ((chCur = *pszStr++) != '\0')
{
int ch;
const char *psz = pszChars;
while ((ch = *psz++) != '\0')
if (ch == chCur)
return 1;
}
return 0;
}
/**
* I/O Control worker.
*
* @returns 0 on success.
* @returns VERR_INVALID_PARAMETER if the request is invalid.
*
* @param uIOCtl Function number.
* @param pDevExt Device extention.
* @param pSession Session data.
* @param pReqHdr The request header.
*/
int VBOXCALL supdrvIOCtl(uintptr_t uIOCtl, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPREQHDR pReqHdr)
{
/*
* Validate the request.
*/
/* this first check could probably be omitted as its also done by the OS specific code... */
if (RT_UNLIKELY( (pReqHdr->fFlags & SUPREQHDR_FLAGS_MAGIC_MASK) != SUPREQHDR_FLAGS_MAGIC
|| pReqHdr->cbIn < sizeof(*pReqHdr)
|| pReqHdr->cbOut < sizeof(*pReqHdr)))
{
OSDBGPRINT(("vboxdrv: Bad ioctl request header; cbIn=%#lx cbOut=%#lx fFlags=%#lx\n",
(long)pReqHdr->cbIn, (long)pReqHdr->cbOut, (long)pReqHdr->fFlags));
return VERR_INVALID_PARAMETER;
}
if (RT_UNLIKELY(uIOCtl == SUP_IOCTL_COOKIE))
{
if (pReqHdr->u32Cookie != SUPCOOKIE_INITIAL_COOKIE)
{
OSDBGPRINT(("SUP_IOCTL_COOKIE: bad cookie %#lx\n", (long)pReqHdr->u32Cookie));
return VERR_INVALID_PARAMETER;
}
}
else if (RT_UNLIKELY( pReqHdr->u32Cookie != pDevExt->u32Cookie
|| pReqHdr->u32SessionCookie != pSession->u32Cookie))
{
OSDBGPRINT(("vboxdrv: bad cookie %#lx / %#lx.\n", (long)pReqHdr->u32Cookie, (long)pReqHdr->u32SessionCookie));
return VERR_INVALID_PARAMETER;
}
/*
* Validation macros
*/
#define REQ_CHECK_SIZES_EX(Name, cbInExpect, cbOutExpect) \
do { \
if (RT_UNLIKELY(pReqHdr->cbIn != (cbInExpect) || pReqHdr->cbOut != (cbOutExpect))) \
{ \
OSDBGPRINT(( #Name ": Invalid input/output sizes. cbIn=%ld expected %ld. cbOut=%ld expected %ld.\n", \
(long)pReq->Hdr.cbIn, (long)(cbInExpect), (long)pReq->Hdr.cbOut, (long)(cbOutExpect))); \
return pReq->Hdr.rc = VERR_INVALID_PARAMETER; \
} \
} while (0)
#define REQ_CHECK_SIZES(Name) REQ_CHECK_SIZES_EX(Name, Name ## _SIZE_IN, Name ## _SIZE_OUT)
#define REQ_CHECK_SIZE_IN(Name, cbInExpect) \
do { \
if (RT_UNLIKELY(pReqHdr->cbIn != (cbInExpect))) \
{ \
OSDBGPRINT(( #Name ": Invalid input/output sizes. cbIn=%ld expected %ld.\n", \
(long)pReq->Hdr.cbIn, (long)(cbInExpect))); \
return pReq->Hdr.rc = VERR_INVALID_PARAMETER; \
} \
} while (0)
#define REQ_CHECK_SIZE_OUT(Name, cbOutExpect) \
do { \
if (RT_UNLIKELY(pReqHdr->cbOut != (cbOutExpect))) \
{ \
OSDBGPRINT(( #Name ": Invalid input/output sizes. cbOut=%ld expected %ld.\n", \
(long)pReq->Hdr.cbOut, (long)(cbOutExpect))); \
return pReq->Hdr.rc = VERR_INVALID_PARAMETER; \
} \
} while (0)
#define REQ_CHECK_EXPR(Name, expr) \
do { \
if (RT_UNLIKELY(!(expr))) \
{ \
OSDBGPRINT(( #Name ": %s\n", #expr)); \
return pReq->Hdr.rc = VERR_INVALID_PARAMETER; \
} \
} while (0)
#define REQ_CHECK_EXPR_FMT(expr, fmt) \
do { \
if (RT_UNLIKELY(!(expr))) \
{ \
OSDBGPRINT( fmt ); \
return pReq->Hdr.rc = VERR_INVALID_PARAMETER; \
} \
} while (0)
/*
* The switch.
*/
switch (SUP_CTL_CODE_NO_SIZE(uIOCtl))
{
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_COOKIE):
{
PSUPCOOKIE pReq = (PSUPCOOKIE)pReqHdr;
REQ_CHECK_SIZES(SUP_IOCTL_COOKIE);
if (strncmp(pReq->u.In.szMagic, SUPCOOKIE_MAGIC, sizeof(pReq->u.In.szMagic)))
{
OSDBGPRINT(("SUP_IOCTL_COOKIE: invalid magic %.16s\n", pReq->u.In.szMagic));
pReq->Hdr.rc = VERR_INVALID_MAGIC;
return 0;
}
#if 0
/*
* Call out to the OS specific code and let it do permission checks on the
* client process.
*/
if (!supdrvOSValidateClientProcess(pDevExt, pSession))
{
pReq->u.Out.u32Cookie = 0xffffffff;
pReq->u.Out.u32SessionCookie = 0xffffffff;
pReq->u.Out.u32SessionVersion = 0xffffffff;
pReq->u.Out.u32DriverVersion = SUPDRV_IOC_VERSION;
pReq->u.Out.pSession = NULL;
pReq->u.Out.cFunctions = 0;
pReq->Hdr.rc = VERR_PERMISSION_DENIED;
return 0;
}
#endif
/*
* Match the version.
* The current logic is very simple, match the major interface version.
*/
if ( pReq->u.In.u32MinVersion > SUPDRV_IOC_VERSION
|| (pReq->u.In.u32MinVersion & 0xffff0000) != (SUPDRV_IOC_VERSION & 0xffff0000))
{
OSDBGPRINT(("SUP_IOCTL_COOKIE: Version mismatch. Requested: %#x Min: %#x Current: %#x\n",
pReq->u.In.u32ReqVersion, pReq->u.In.u32MinVersion, SUPDRV_IOC_VERSION));
pReq->u.Out.u32Cookie = 0xffffffff;
pReq->u.Out.u32SessionCookie = 0xffffffff;
pReq->u.Out.u32SessionVersion = 0xffffffff;
pReq->u.Out.u32DriverVersion = SUPDRV_IOC_VERSION;
pReq->u.Out.pSession = NULL;
pReq->u.Out.cFunctions = 0;
pReq->Hdr.rc = VERR_VERSION_MISMATCH;
return 0;
}
/*
* Fill in return data and be gone.
* N.B. The first one to change SUPDRV_IOC_VERSION shall makes sure that
* u32SessionVersion <= u32ReqVersion!
*/
/** @todo Somehow validate the client and negotiate a secure cookie... */
pReq->u.Out.u32Cookie = pDevExt->u32Cookie;
pReq->u.Out.u32SessionCookie = pSession->u32Cookie;
pReq->u.Out.u32SessionVersion = SUPDRV_IOC_VERSION;
pReq->u.Out.u32DriverVersion = SUPDRV_IOC_VERSION;
pReq->u.Out.pSession = pSession;
pReq->u.Out.cFunctions = sizeof(g_aFunctions) / sizeof(g_aFunctions[0]);
pReq->Hdr.rc = VINF_SUCCESS;
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_QUERY_FUNCS(0)):
{
/* validate */
PSUPQUERYFUNCS pReq = (PSUPQUERYFUNCS)pReqHdr;
REQ_CHECK_SIZES_EX(SUP_IOCTL_QUERY_FUNCS, SUP_IOCTL_QUERY_FUNCS_SIZE_IN, SUP_IOCTL_QUERY_FUNCS_SIZE_OUT(RT_ELEMENTS(g_aFunctions)));
/* execute */
pReq->u.Out.cFunctions = RT_ELEMENTS(g_aFunctions);
memcpy(&pReq->u.Out.aFunctions[0], g_aFunctions, sizeof(g_aFunctions));
pReq->Hdr.rc = VINF_SUCCESS;
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_IDT_INSTALL):
{
/* validate */
PSUPIDTINSTALL pReq = (PSUPIDTINSTALL)pReqHdr;
REQ_CHECK_SIZES(SUP_IOCTL_IDT_INSTALL);
/* execute */
pReq->u.Out.u8Idt = 3;
pReq->Hdr.rc = VERR_NOT_SUPPORTED;
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_IDT_REMOVE):
{
/* validate */
PSUPIDTREMOVE pReq = (PSUPIDTREMOVE)pReqHdr;
REQ_CHECK_SIZES(SUP_IOCTL_IDT_REMOVE);
/* execute */
pReq->Hdr.rc = VERR_NOT_SUPPORTED;
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_PAGE_LOCK):
{
/* validate */
PSUPPAGELOCK pReq = (PSUPPAGELOCK)pReqHdr;
REQ_CHECK_SIZE_IN(SUP_IOCTL_PAGE_LOCK, SUP_IOCTL_PAGE_LOCK_SIZE_IN);
REQ_CHECK_SIZE_OUT(SUP_IOCTL_PAGE_LOCK, SUP_IOCTL_PAGE_LOCK_SIZE_OUT(pReq->u.In.cPages));
REQ_CHECK_EXPR(SUP_IOCTL_PAGE_LOCK, pReq->u.In.cPages > 0);
REQ_CHECK_EXPR(SUP_IOCTL_PAGE_LOCK, pReq->u.In.pvR3 >= PAGE_SIZE);
/* execute */
pReq->Hdr.rc = SUPR0LockMem(pSession, pReq->u.In.pvR3, pReq->u.In.cPages, &pReq->u.Out.aPages[0]);
if (RT_FAILURE(pReq->Hdr.rc))
pReq->Hdr.cbOut = sizeof(pReq->Hdr);
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_PAGE_UNLOCK):
{
/* validate */
PSUPPAGEUNLOCK pReq = (PSUPPAGEUNLOCK)pReqHdr;
REQ_CHECK_SIZES(SUP_IOCTL_PAGE_UNLOCK);
/* execute */
pReq->Hdr.rc = SUPR0UnlockMem(pSession, pReq->u.In.pvR3);
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_CONT_ALLOC):
{
/* validate */
PSUPCONTALLOC pReq = (PSUPCONTALLOC)pReqHdr;
REQ_CHECK_SIZES(SUP_IOCTL_CONT_ALLOC);
/* execute */
pReq->Hdr.rc = SUPR0ContAlloc(pSession, pReq->u.In.cPages, &pReq->u.Out.pvR0, &pReq->u.Out.pvR3, &pReq->u.Out.HCPhys);
if (RT_FAILURE(pReq->Hdr.rc))
pReq->Hdr.cbOut = sizeof(pReq->Hdr);
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_CONT_FREE):
{
/* validate */
PSUPCONTFREE pReq = (PSUPCONTFREE)pReqHdr;
REQ_CHECK_SIZES(SUP_IOCTL_CONT_FREE);
/* execute */
pReq->Hdr.rc = SUPR0ContFree(pSession, (RTHCUINTPTR)pReq->u.In.pvR3);
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LDR_OPEN):
{
/* validate */
PSUPLDROPEN pReq = (PSUPLDROPEN)pReqHdr;
REQ_CHECK_SIZES(SUP_IOCTL_LDR_OPEN);
REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, pReq->u.In.cbImage > 0);
REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, pReq->u.In.cbImage < _1M*16);
REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, pReq->u.In.szName[0]);
REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, memchr(pReq->u.In.szName, '\0', sizeof(pReq->u.In.szName)));
REQ_CHECK_EXPR(SUP_IOCTL_LDR_OPEN, !supdrvCheckInvalidChar(pReq->u.In.szName, ";:()[]{}/\\|&*%#@!~`\"'"));
/* execute */
pReq->Hdr.rc = supdrvIOCtl_LdrOpen(pDevExt, pSession, pReq);
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LDR_LOAD):
{
/* validate */
PSUPLDRLOAD pReq = (PSUPLDRLOAD)pReqHdr;
REQ_CHECK_EXPR(Name, pReq->Hdr.cbIn >= sizeof(*pReq));
REQ_CHECK_SIZES_EX(SUP_IOCTL_LDR_LOAD, SUP_IOCTL_LDR_LOAD_SIZE_IN(pReq->u.In.cbImage), SUP_IOCTL_LDR_LOAD_SIZE_OUT);
REQ_CHECK_EXPR(SUP_IOCTL_LDR_LOAD, pReq->u.In.cSymbols <= 16384);
REQ_CHECK_EXPR_FMT( !pReq->u.In.cSymbols
|| ( pReq->u.In.offSymbols < pReq->u.In.cbImage
&& pReq->u.In.offSymbols + pReq->u.In.cSymbols * sizeof(SUPLDRSYM) <= pReq->u.In.cbImage),
("SUP_IOCTL_LDR_LOAD: offSymbols=%#lx cSymbols=%#lx cbImage=%#lx\n", (long)pReq->u.In.offSymbols,
(long)pReq->u.In.cSymbols, (long)pReq->u.In.cbImage));
REQ_CHECK_EXPR_FMT( !pReq->u.In.cbStrTab
|| ( pReq->u.In.offStrTab < pReq->u.In.cbImage
&& pReq->u.In.offStrTab + pReq->u.In.cbStrTab <= pReq->u.In.cbImage
&& pReq->u.In.cbStrTab <= pReq->u.In.cbImage),
("SUP_IOCTL_LDR_LOAD: offStrTab=%#lx cbStrTab=%#lx cbImage=%#lx\n", (long)pReq->u.In.offStrTab,
(long)pReq->u.In.cbStrTab, (long)pReq->u.In.cbImage));
if (pReq->u.In.cSymbols)
{
uint32_t i;
PSUPLDRSYM paSyms = (PSUPLDRSYM)&pReq->u.In.achImage[pReq->u.In.offSymbols];
for (i = 0; i < pReq->u.In.cSymbols; i++)
{
REQ_CHECK_EXPR_FMT(paSyms[i].offSymbol < pReq->u.In.cbImage,
("SUP_IOCTL_LDR_LOAD: sym #%ld: symb off %#lx (max=%#lx)\n", (long)i, (long)paSyms[i].offSymbol, (long)pReq->u.In.cbImage));
REQ_CHECK_EXPR_FMT(paSyms[i].offName < pReq->u.In.cbStrTab,
("SUP_IOCTL_LDR_LOAD: sym #%ld: name off %#lx (max=%#lx)\n", (long)i, (long)paSyms[i].offName, (long)pReq->u.In.cbImage));
REQ_CHECK_EXPR_FMT(memchr(&pReq->u.In.achImage[pReq->u.In.offStrTab + paSyms[i].offName], '\0', pReq->u.In.cbStrTab - paSyms[i].offName),
("SUP_IOCTL_LDR_LOAD: sym #%ld: unterminated name! (%#lx / %#lx)\n", (long)i, (long)paSyms[i].offName, (long)pReq->u.In.cbImage));
}
}
/* execute */
pReq->Hdr.rc = supdrvIOCtl_LdrLoad(pDevExt, pSession, pReq);
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LDR_FREE):
{
/* validate */
PSUPLDRFREE pReq = (PSUPLDRFREE)pReqHdr;
REQ_CHECK_SIZES(SUP_IOCTL_LDR_FREE);
/* execute */
pReq->Hdr.rc = supdrvIOCtl_LdrFree(pDevExt, pSession, pReq);
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LDR_GET_SYMBOL):
{
/* validate */
PSUPLDRGETSYMBOL pReq = (PSUPLDRGETSYMBOL)pReqHdr;
REQ_CHECK_SIZES(SUP_IOCTL_LDR_GET_SYMBOL);
REQ_CHECK_EXPR(SUP_IOCTL_LDR_GET_SYMBOL, memchr(pReq->u.In.szSymbol, '\0', sizeof(pReq->u.In.szSymbol)));
/* execute */
pReq->Hdr.rc = supdrvIOCtl_LdrGetSymbol(pDevExt, pSession, pReq);
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_CALL_VMMR0(0)):
{
/* validate */
PSUPCALLVMMR0 pReq = (PSUPCALLVMMR0)pReqHdr;
Log4(("SUP_IOCTL_CALL_VMMR0: op=%u in=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
pReq->u.In.uOperation, pReq->Hdr.cbIn, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
if (pReq->Hdr.cbIn == SUP_IOCTL_CALL_VMMR0_SIZE(0))
{
REQ_CHECK_SIZES_EX(SUP_IOCTL_CALL_VMMR0, SUP_IOCTL_CALL_VMMR0_SIZE_IN(0), SUP_IOCTL_CALL_VMMR0_SIZE_OUT(0));
/* execute */
if (RT_LIKELY(pDevExt->pfnVMMR0EntryEx))
#ifdef RT_WITH_W64_UNWIND_HACK
pReq->Hdr.rc = supdrvNtWrapVMMR0EntryEx((PFNRT)pDevExt->pfnVMMR0EntryEx, pReq->u.In.pVMR0, pReq->u.In.uOperation, NULL, pReq->u.In.u64Arg, pSession);
#else
pReq->Hdr.rc = pDevExt->pfnVMMR0EntryEx(pReq->u.In.pVMR0, pReq->u.In.uOperation, NULL, pReq->u.In.u64Arg, pSession);
#endif
else
pReq->Hdr.rc = VERR_WRONG_ORDER;
}
else
{
PSUPVMMR0REQHDR pVMMReq = (PSUPVMMR0REQHDR)&pReq->abReqPkt[0];
REQ_CHECK_EXPR_FMT(pReq->Hdr.cbIn >= SUP_IOCTL_CALL_VMMR0_SIZE(sizeof(SUPVMMR0REQHDR)),
("SUP_IOCTL_CALL_VMMR0: cbIn=%#x < %#lx\n", pReq->Hdr.cbIn, SUP_IOCTL_CALL_VMMR0_SIZE(sizeof(SUPVMMR0REQHDR))));
REQ_CHECK_EXPR(SUP_IOCTL_CALL_VMMR0, pVMMReq->u32Magic == SUPVMMR0REQHDR_MAGIC);
REQ_CHECK_SIZES_EX(SUP_IOCTL_CALL_VMMR0, SUP_IOCTL_CALL_VMMR0_SIZE_IN(pVMMReq->cbReq), SUP_IOCTL_CALL_VMMR0_SIZE_OUT(pVMMReq->cbReq));
/* execute */
if (RT_LIKELY(pDevExt->pfnVMMR0EntryEx))
#ifdef RT_WITH_W64_UNWIND_HACK
pReq->Hdr.rc = supdrvNtWrapVMMR0EntryEx((PFNRT)pDevExt->pfnVMMR0EntryEx, pReq->u.In.pVMR0, pReq->u.In.uOperation, pVMMReq, pReq->u.In.u64Arg, pSession);
#else
pReq->Hdr.rc = pDevExt->pfnVMMR0EntryEx(pReq->u.In.pVMR0, pReq->u.In.uOperation, pVMMReq, pReq->u.In.u64Arg, pSession);
#endif
else
pReq->Hdr.rc = VERR_WRONG_ORDER;
}
if ( RT_FAILURE(pReq->Hdr.rc)
&& pReq->Hdr.rc != VERR_INTERRUPTED
&& pReq->Hdr.rc != VERR_TIMEOUT)
Log(("SUP_IOCTL_CALL_VMMR0: rc=%Rrc op=%u out=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
pReq->Hdr.rc, pReq->u.In.uOperation, pReq->Hdr.cbOut, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
else
Log4(("SUP_IOCTL_CALL_VMMR0: rc=%Rrc op=%u out=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
pReq->Hdr.rc, pReq->u.In.uOperation, pReq->Hdr.cbOut, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_GET_PAGING_MODE):
{
/* validate */
PSUPGETPAGINGMODE pReq = (PSUPGETPAGINGMODE)pReqHdr;
REQ_CHECK_SIZES(SUP_IOCTL_GET_PAGING_MODE);
/* execute */
pReq->Hdr.rc = VINF_SUCCESS;
pReq->u.Out.enmMode = SUPR0GetPagingMode();
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LOW_ALLOC):
{
/* validate */
PSUPLOWALLOC pReq = (PSUPLOWALLOC)pReqHdr;
REQ_CHECK_EXPR(SUP_IOCTL_LOW_ALLOC, pReq->Hdr.cbIn <= SUP_IOCTL_LOW_ALLOC_SIZE_IN);
REQ_CHECK_SIZES_EX(SUP_IOCTL_LOW_ALLOC, SUP_IOCTL_LOW_ALLOC_SIZE_IN, SUP_IOCTL_LOW_ALLOC_SIZE_OUT(pReq->u.In.cPages));
/* execute */
pReq->Hdr.rc = SUPR0LowAlloc(pSession, pReq->u.In.cPages, &pReq->u.Out.pvR0, &pReq->u.Out.pvR3, &pReq->u.Out.aPages[0]);
if (RT_FAILURE(pReq->Hdr.rc))
pReq->Hdr.cbOut = sizeof(pReq->Hdr);
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_LOW_FREE):
{
/* validate */
PSUPLOWFREE pReq = (PSUPLOWFREE)pReqHdr;
REQ_CHECK_SIZES(SUP_IOCTL_LOW_FREE);
/* execute */
pReq->Hdr.rc = SUPR0LowFree(pSession, (RTHCUINTPTR)pReq->u.In.pvR3);
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_GIP_MAP):
{
/* validate */
PSUPGIPMAP pReq = (PSUPGIPMAP)pReqHdr;
REQ_CHECK_SIZES(SUP_IOCTL_GIP_MAP);
/* execute */
pReq->Hdr.rc = SUPR0GipMap(pSession, &pReq->u.Out.pGipR3, &pReq->u.Out.HCPhysGip);
if (RT_SUCCESS(pReq->Hdr.rc))
pReq->u.Out.pGipR0 = pDevExt->pGip;
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_GIP_UNMAP):
{
/* validate */
PSUPGIPUNMAP pReq = (PSUPGIPUNMAP)pReqHdr;
REQ_CHECK_SIZES(SUP_IOCTL_GIP_UNMAP);
/* execute */
pReq->Hdr.rc = SUPR0GipUnmap(pSession);
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_SET_VM_FOR_FAST):
{
/* validate */
PSUPSETVMFORFAST pReq = (PSUPSETVMFORFAST)pReqHdr;
REQ_CHECK_SIZES(SUP_IOCTL_SET_VM_FOR_FAST);
REQ_CHECK_EXPR_FMT( !pReq->u.In.pVMR0
|| ( VALID_PTR(pReq->u.In.pVMR0)
&& !((uintptr_t)pReq->u.In.pVMR0 & (PAGE_SIZE - 1))),
("SUP_IOCTL_SET_VM_FOR_FAST: pVMR0=%p!\n", pReq->u.In.pVMR0));
/* execute */
pSession->pVM = pReq->u.In.pVMR0;
pReq->Hdr.rc = VINF_SUCCESS;
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_PAGE_ALLOC):
{
/* validate */
PSUPPAGEALLOC pReq = (PSUPPAGEALLOC)pReqHdr;
REQ_CHECK_EXPR(SUP_IOCTL_PAGE_ALLOC, pReq->Hdr.cbIn <= SUP_IOCTL_PAGE_ALLOC_SIZE_IN);
REQ_CHECK_SIZES_EX(SUP_IOCTL_PAGE_ALLOC, SUP_IOCTL_PAGE_ALLOC_SIZE_IN, SUP_IOCTL_PAGE_ALLOC_SIZE_OUT(pReq->u.In.cPages));
/* execute */
pReq->Hdr.rc = SUPR0PageAlloc(pSession, pReq->u.In.cPages, &pReq->u.Out.pvR3, &pReq->u.Out.aPages[0]);
if (RT_FAILURE(pReq->Hdr.rc))
pReq->Hdr.cbOut = sizeof(pReq->Hdr);
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_PAGE_ALLOC_EX):
{
/* validate */
PSUPPAGEALLOCEX pReq = (PSUPPAGEALLOCEX)pReqHdr;
REQ_CHECK_EXPR(SUP_IOCTL_PAGE_ALLOC_EX, pReq->Hdr.cbIn <= SUP_IOCTL_PAGE_ALLOC_EX_SIZE_IN);
REQ_CHECK_SIZES_EX(SUP_IOCTL_PAGE_ALLOC_EX, SUP_IOCTL_PAGE_ALLOC_EX_SIZE_IN, SUP_IOCTL_PAGE_ALLOC_EX_SIZE_OUT(pReq->u.In.cPages));
REQ_CHECK_EXPR_FMT(pReq->u.In.fKernelMapping || pReq->u.In.fUserMapping,
("SUP_IOCTL_PAGE_ALLOC_EX: No mapping requested!\n"));
REQ_CHECK_EXPR_FMT(pReq->u.In.fUserMapping,
("SUP_IOCTL_PAGE_ALLOC_EX: Must have user mapping!\n"));
REQ_CHECK_EXPR_FMT(!pReq->u.In.fReserved0 && !pReq->u.In.fReserved1,
("SUP_IOCTL_PAGE_ALLOC_EX: fReserved0=%d fReserved1=%d\n", pReq->u.In.fReserved0, pReq->u.In.fReserved1));
/* execute */
pReq->Hdr.rc = SUPR0PageAllocEx(pSession, pReq->u.In.cPages, 0 /* fFlags */,
pReq->u.In.fUserMapping ? &pReq->u.Out.pvR3 : NULL,
pReq->u.In.fKernelMapping ? &pReq->u.Out.pvR0 : NULL,
&pReq->u.Out.aPages[0]);
if (RT_FAILURE(pReq->Hdr.rc))
pReq->Hdr.cbOut = sizeof(pReq->Hdr);
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_PAGE_FREE):
{
/* validate */
PSUPPAGEFREE pReq = (PSUPPAGEFREE)pReqHdr;
REQ_CHECK_SIZES(SUP_IOCTL_PAGE_FREE);
/* execute */
pReq->Hdr.rc = SUPR0PageFree(pSession, pReq->u.In.pvR3);
return 0;
}
case SUP_CTL_CODE_NO_SIZE(SUP_IOCTL_CALL_SERVICE(0)):
{
/* validate */
PSUPCALLSERVICE pReq = (PSUPCALLSERVICE)pReqHdr;
Log4(("SUP_IOCTL_CALL_SERVICE: op=%u in=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
pReq->u.In.uOperation, pReq->Hdr.cbIn, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
if (pReq->Hdr.cbIn == SUP_IOCTL_CALL_SERVICE_SIZE(0))
REQ_CHECK_SIZES_EX(SUP_IOCTL_CALL_SERVICE, SUP_IOCTL_CALL_SERVICE_SIZE_IN(0), SUP_IOCTL_CALL_SERVICE_SIZE_OUT(0));
else
{
PSUPR0SERVICEREQHDR pSrvReq = (PSUPR0SERVICEREQHDR)&pReq->abReqPkt[0];
REQ_CHECK_EXPR_FMT(pReq->Hdr.cbIn >= SUP_IOCTL_CALL_SERVICE_SIZE(sizeof(SUPR0SERVICEREQHDR)),
("SUP_IOCTL_CALL_SERVICE: cbIn=%#x < %#lx\n", pReq->Hdr.cbIn, SUP_IOCTL_CALL_SERVICE_SIZE(sizeof(SUPR0SERVICEREQHDR))));
REQ_CHECK_EXPR(SUP_IOCTL_CALL_SERVICE, pSrvReq->u32Magic == SUPR0SERVICEREQHDR_MAGIC);
REQ_CHECK_SIZES_EX(SUP_IOCTL_CALL_SERVICE, SUP_IOCTL_CALL_SERVICE_SIZE_IN(pSrvReq->cbReq), SUP_IOCTL_CALL_SERVICE_SIZE_OUT(pSrvReq->cbReq));
}
REQ_CHECK_EXPR(SUP_IOCTL_CALL_SERVICE, memchr(pReq->u.In.szName, '\0', sizeof(pReq->u.In.szName)));
/* execute */
pReq->Hdr.rc = supdrvIOCtl_CallServiceModule(pDevExt, pSession, pReq);
return 0;
}
default:
Log(("Unknown IOCTL %#lx\n", (long)uIOCtl));
break;
}
return SUPDRV_ERR_GENERAL_FAILURE;
}
/**
* Inter-Driver Communcation (IDC) worker.
*
* @returns VBox status code.
* @retval VINF_SUCCESS on success.
* @retval VERR_INVALID_PARAMETER if the request is invalid.
* @retval VERR_NOT_SUPPORTED if the request isn't supported.
*
* @param uReq The request (function) code.
* @param pDevExt Device extention.
* @param pSession Session data.
* @param pReqHdr The request header.
*/
int VBOXCALL supdrvIDC(uintptr_t uReq, PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVIDCREQHDR pReqHdr)
{
/*
* The OS specific code has already validated the pSession
* pointer, and the request size being greater or equal to
* size of the header.
*
* So, just check that pSession is a kernel context session.
*/
if (RT_UNLIKELY( pSession
&& pSession->R0Process != NIL_RTR0PROCESS))
return VERR_INVALID_PARAMETER;
/*
* Validation macro.
*/
#define REQ_CHECK_IDC_SIZE(Name, cbExpect) \
do { \
if (RT_UNLIKELY(pReqHdr->cb != (cbExpect))) \
{ \
OSDBGPRINT(( #Name ": Invalid input/output sizes. cb=%ld expected %ld.\n", \
(long)pReqHdr->cb, (long)(cbExpect))); \
return pReqHdr->rc = VERR_INVALID_PARAMETER; \
} \
} while (0)
switch (uReq)
{
case SUPDRV_IDC_REQ_CONNECT:
{
PSUPDRVIDCREQCONNECT pReq = (PSUPDRVIDCREQCONNECT)pReqHdr;
REQ_CHECK_IDC_SIZE(SUPDRV_IDC_REQ_CONNECT, sizeof(*pReq));
/*
* Validate the cookie and other input.
*/
if (pReq->Hdr.pSession != NULL)
{
OSDBGPRINT(("SUPDRV_IDC_REQ_CONNECT: pSession=%p expected NULL!\n", pReq->Hdr.pSession));
return pReqHdr->rc = VERR_INVALID_PARAMETER;
}
if (pReq->u.In.u32MagicCookie != SUPDRVIDCREQ_CONNECT_MAGIC_COOKIE)
{
OSDBGPRINT(("SUPDRV_IDC_REQ_CONNECT: u32MagicCookie=%#x expected %#x!\n",
pReq->u.In.u32MagicCookie, SUPDRVIDCREQ_CONNECT_MAGIC_COOKIE));
return pReqHdr->rc = VERR_INVALID_PARAMETER;
}
if ( pReq->u.In.uMinVersion > pReq->u.In.uReqVersion
|| (pReq->u.In.uMinVersion & UINT32_C(0xffff0000)) != (pReq->u.In.uReqVersion & UINT32_C(0xffff0000)))
{
OSDBGPRINT(("SUPDRV_IDC_REQ_CONNECT: uMinVersion=%#x uMaxVersion=%#x doesn't match!\n",
pReq->u.In.uMinVersion, pReq->u.In.uReqVersion));
return pReqHdr->rc = VERR_INVALID_PARAMETER;
}
/*
* Match the version.
* The current logic is very simple, match the major interface version.
*/
if ( pReq->u.In.uMinVersion > SUPDRV_IDC_VERSION
|| (pReq->u.In.uMinVersion & 0xffff0000) != (SUPDRV_IDC_VERSION & 0xffff0000))
{
OSDBGPRINT(("SUPDRV_IDC_REQ_CONNECT: Version mismatch. Requested: %#x Min: %#x Current: %#x\n",
pReq->u.In.uReqVersion, pReq->u.In.uMinVersion, SUPDRV_IDC_VERSION));
pReq->u.Out.pSession = NULL;
pReq->u.Out.uSessionVersion = 0xffffffff;
pReq->u.Out.uDriverVersion = SUPDRV_IDC_VERSION;
pReq->u.Out.uDriverRevision = VBOX_SVN_REV;
pReq->Hdr.rc = VERR_VERSION_MISMATCH;
return VINF_SUCCESS;
}
pReq->u.Out.pSession = NULL;
pReq->u.Out.uSessionVersion = SUPDRV_IDC_VERSION;
pReq->u.Out.uDriverVersion = SUPDRV_IDC_VERSION;
pReq->u.Out.uDriverRevision = VBOX_SVN_REV;
/*
* On NT we will already have a session associated with the
* client, just like with the SUP_IOCTL_COOKIE request, while
* the other doesn't.
*/
#ifdef RT_OS_WINDOWS
pReq->Hdr.rc = VINF_SUCCESS;
#else
AssertReturn(!pSession, VERR_INTERNAL_ERROR);
pReq->Hdr.rc = supdrvCreateSession(pDevExt, false /* fUser */, &pSession);
if (RT_FAILURE(pReq->Hdr.rc))
{
OSDBGPRINT(("SUPDRV_IDC_REQ_CONNECT: failed to create session, rc=%d\n", pReq->Hdr.rc));
return VINF_SUCCESS;
}
#endif
pReq->u.Out.pSession = pSession;
pReq->Hdr.pSession = pSession;
return VINF_SUCCESS;
}
case SUPDRV_IDC_REQ_DISCONNECT:
{
REQ_CHECK_IDC_SIZE(SUPDRV_IDC_REQ_DISCONNECT, sizeof(*pReqHdr));
#ifdef RT_OS_WINDOWS
/* Windows will destroy the session when the file object is destroyed. */
#else
supdrvCloseSession(pDevExt, pSession);
#endif
return pReqHdr->rc = VINF_SUCCESS;
}
case SUPDRV_IDC_REQ_GET_SYMBOL:
{
PSUPDRVIDCREQGETSYM pReq = (PSUPDRVIDCREQGETSYM)pReqHdr;
REQ_CHECK_IDC_SIZE(SUPDRV_IDC_REQ_GET_SYMBOL, sizeof(*pReq));
pReq->Hdr.rc = supdrvIDC_LdrGetSymbol(pDevExt, pSession, pReq);
return VINF_SUCCESS;
}
case SUPDRV_IDC_REQ_COMPONENT_REGISTER_FACTORY:
{
PSUPDRVIDCREQCOMPREGFACTORY pReq = (PSUPDRVIDCREQCOMPREGFACTORY)pReqHdr;
REQ_CHECK_IDC_SIZE(SUPDRV_IDC_REQ_COMPONENT_REGISTER_FACTORY, sizeof(*pReq));
pReq->Hdr.rc = SUPR0ComponentRegisterFactory(pSession, pReq->u.In.pFactory);
return VINF_SUCCESS;
}
case SUPDRV_IDC_REQ_COMPONENT_DEREGISTER_FACTORY:
{
PSUPDRVIDCREQCOMPDEREGFACTORY pReq = (PSUPDRVIDCREQCOMPDEREGFACTORY)pReqHdr;
REQ_CHECK_IDC_SIZE(SUPDRV_IDC_REQ_COMPONENT_DEREGISTER_FACTORY, sizeof(*pReq));
pReq->Hdr.rc = SUPR0ComponentDeregisterFactory(pSession, pReq->u.In.pFactory);
return VINF_SUCCESS;
}
default:
Log(("Unknown IDC %#lx\n", (long)uReq));
break;
}
#undef REQ_CHECK_IDC_SIZE
return VERR_NOT_SUPPORTED;
}
/**
* Register a object for reference counting.
* The object is registered with one reference in the specified session.
*
* @returns Unique identifier on success (pointer).
* All future reference must use this identifier.
* @returns NULL on failure.
* @param pfnDestructor The destructore function which will be called when the reference count reaches 0.
* @param pvUser1 The first user argument.
* @param pvUser2 The second user argument.
*/
SUPR0DECL(void *) SUPR0ObjRegister(PSUPDRVSESSION pSession, SUPDRVOBJTYPE enmType, PFNSUPDRVDESTRUCTOR pfnDestructor, void *pvUser1, void *pvUser2)
{
RTSPINLOCKTMP SpinlockTmp = RTSPINLOCKTMP_INITIALIZER;
PSUPDRVDEVEXT pDevExt = pSession->pDevExt;
PSUPDRVOBJ pObj;
PSUPDRVUSAGE pUsage;
/*
* Validate the input.
*/
AssertReturn(SUP_IS_SESSION_VALID(pSession), NULL);
AssertReturn(enmType > SUPDRVOBJTYPE_INVALID && enmType < SUPDRVOBJTYPE_END, NULL);
AssertPtrReturn(pfnDestructor, NULL);
/*
* Allocate and initialize the object.
*/
pObj = (PSUPDRVOBJ)RTMemAlloc(sizeof(*pObj));
if (!pObj)
return NULL;
pObj->u32Magic = SUPDRVOBJ_MAGIC;
pObj->enmType = enmType;
pObj->pNext = NULL;
pObj->cUsage = 1;
pObj->pfnDestructor = pfnDestructor;
pObj->pvUser1 = pvUser1;
pObj->pvUser2 = pvUser2;
pObj->CreatorUid = pSession->Uid;
pObj->CreatorGid = pSession->Gid;
pObj->CreatorProcess= pSession->Process;
supdrvOSObjInitCreator(pObj, pSession);
/*
* Allocate the usage record.
* (We keep freed usage records around to simplify SUPR0ObjAddRef().)
*/
RTSpinlockAcquire(pDevExt->Spinlock, &SpinlockTmp);
pUsage = pDevExt->pUsageFree;
if (pUsage)
pDevExt->pUsageFree = pUsage->pNext;
else
{
RTSpinlockRelease(pDevExt->Spinlock, &SpinlockTmp);
pUsage = (PSUPDRVUSAGE)RTMemAlloc(sizeof(*pUsage));
if (!pUsage)
{
RTMemFree(pObj);
return NULL;
}
RTSpinlockAcquire(pDevExt->Spinlock, &SpinlockTmp);
}
/*
* Insert the object and create the session usage record.
*/
/* The object. */
pObj->pNext = pDevExt->pObjs;
pDevExt->pObjs = pObj;
/* The session record. */
pUsage->cUsage = 1;
pUsage->pObj = pObj;
pUsage->pNext = pSession->pUsage;
/* Log2(("SUPR0ObjRegister: pUsage=%p:{.pObj=%p, .pNext=%p}\n", pUsage, pUsage->pObj, pUsage->pNext)); */
pSession->pUsage = pUsage;
RTSpinlockRelease(pDevExt->Spinlock, &SpinlockTmp);
Log(("SUPR0ObjRegister: returns %p (pvUser1=%p, pvUser=%p)\n", pObj, pvUser1, pvUser2));
return pObj;
}
/**
* Increment the reference counter for the object associating the reference
* with the specified session.
*
* @returns IPRT status code.
* @param pvObj The identifier returned by SUPR0ObjRegister().
* @param pSession The session which is referencing the object.
*
* @remarks The caller should not own any spinlocks and must carefully protect
* itself against potential race with the destructor so freed memory
* isn't accessed here.
*/
SUPR0DECL(int) SUPR0ObjAddRef(void *pvObj, PSUPDRVSESSION pSession)
{
RTSPINLOCKTMP SpinlockTmp = RTSPINLOCKTMP_INITIALIZER;
PSUPDRVDEVEXT pDevExt = pSession->pDevExt;
PSUPDRVOBJ pObj = (PSUPDRVOBJ)pvObj;
PSUPDRVUSAGE pUsagePre;
PSUPDRVUSAGE pUsage;
/*
* Validate the input.
* Be ready for the destruction race (someone might be stuck in the
* destructor waiting a lock we own).
*/
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
AssertPtrReturn(pObj, VERR_INVALID_POINTER);
AssertMsgReturn(pObj->u32Magic == SUPDRVOBJ_MAGIC || pObj->u32Magic == SUPDRVOBJ_MAGIC + 1,
("Invalid pvObj=%p magic=%#x (expected %#x or %#x)\n", pvObj, pObj->u32Magic, SUPDRVOBJ_MAGIC, SUPDRVOBJ_MAGIC + 1),
VERR_INVALID_PARAMETER);
RTSpinlockAcquire(pDevExt->Spinlock, &SpinlockTmp);
if (RT_UNLIKELY(pObj->u32Magic != SUPDRVOBJ_MAGIC))
{
RTSpinlockRelease(pDevExt->Spinlock, &SpinlockTmp);
AssertMsgFailed(("pvObj=%p magic=%#x\n", pvObj, pObj->u32Magic));
return VERR_WRONG_ORDER;
}
/*
* Preallocate the usage record.
*/
pUsagePre = pDevExt->pUsageFree;
if (pUsagePre)
pDevExt->pUsageFree = pUsagePre->pNext;
else
{
RTSpinlockRelease(pDevExt->Spinlock, &SpinlockTmp);
pUsagePre = (PSUPDRVUSAGE)RTMemAlloc(sizeof(*pUsagePre));
if (!pUsagePre)
return VERR_NO_MEMORY;
RTSpinlockAcquire(pDevExt->Spinlock, &SpinlockTmp);
}
/*
* Reference the object.
*/
pObj->cUsage++;
/*
* Look for the session record.
*/
for (pUsage = pSession->pUsage; pUsage; pUsage = pUsage->pNext)
{
/*Log(("SUPR0AddRef: pUsage=%p:{.pObj=%p, .pNext=%p}\n", pUsage, pUsage->pObj, pUsage->pNext));*/
if (pUsage->pObj == pObj)
break;
}
if (pUsage)
pUsage->cUsage++;
else
{
/* create a new session record. */
pUsagePre->cUsage = 1;
pUsagePre->pObj = pObj;
pUsagePre->pNext = pSession->pUsage;
pSession->pUsage = pUsagePre;
/*Log(("SUPR0AddRef: pUsagePre=%p:{.pObj=%p, .pNext=%p}\n", pUsagePre, pUsagePre->pObj, pUsagePre->pNext));*/
pUsagePre = NULL;
}
/*
* Put any unused usage record into the free list..
*/
if (pUsagePre)
{
pUsagePre->pNext = pDevExt->pUsageFree;
pDevExt->pUsageFree = pUsagePre;
}
RTSpinlockRelease(pDevExt->Spinlock, &SpinlockTmp);
return VINF_SUCCESS;
}
/**
* Decrement / destroy a reference counter record for an object.
*
* The object is uniquely identified by pfnDestructor+pvUser1+pvUser2.
*
* @returns IPRT status code.
* @param pvObj The identifier returned by SUPR0ObjRegister().
* @param pSession The session which is referencing the object.
*/
SUPR0DECL(int) SUPR0ObjRelease(void *pvObj, PSUPDRVSESSION pSession)
{
RTSPINLOCKTMP SpinlockTmp = RTSPINLOCKTMP_INITIALIZER;
PSUPDRVDEVEXT pDevExt = pSession->pDevExt;
PSUPDRVOBJ pObj = (PSUPDRVOBJ)pvObj;
bool fDestroy = false;
PSUPDRVUSAGE pUsage;
PSUPDRVUSAGE pUsagePrev;
/*
* Validate the input.
*/
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
AssertMsgReturn(VALID_PTR(pObj) && pObj->u32Magic == SUPDRVOBJ_MAGIC,
("Invalid pvObj=%p magic=%#x (exepcted %#x)\n", pvObj, pObj ? pObj->u32Magic : 0, SUPDRVOBJ_MAGIC),
VERR_INVALID_PARAMETER);
/*
* Acquire the spinlock and look for the usage record.
*/
RTSpinlockAcquire(pDevExt->Spinlock, &SpinlockTmp);
for (pUsagePrev = NULL, pUsage = pSession->pUsage;
pUsage;
pUsagePrev = pUsage, pUsage = pUsage->pNext)
{
/*Log2(("SUPR0ObjRelease: pUsage=%p:{.pObj=%p, .pNext=%p}\n", pUsage, pUsage->pObj, pUsage->pNext));*/
if (pUsage->pObj == pObj)
{
AssertMsg(pUsage->cUsage >= 1 && pObj->cUsage >= pUsage->cUsage, ("glob %d; sess %d\n", pObj->cUsage, pUsage->cUsage));
if (pUsage->cUsage > 1)
{
pObj->cUsage--;
pUsage->cUsage--;
}
else
{
/*
* Free the session record.
*/
if (pUsagePrev)
pUsagePrev->pNext = pUsage->pNext;
else
pSession->pUsage = pUsage->pNext;
pUsage->pNext = pDevExt->pUsageFree;
pDevExt->pUsageFree = pUsage;
/* What about the object? */
if (pObj->cUsage > 1)
pObj->cUsage--;
else
{
/*
* Object is to be destroyed, unlink it.
*/
pObj->u32Magic = SUPDRVOBJ_MAGIC + 1;
fDestroy = true;
if (pDevExt->pObjs == pObj)
pDevExt->pObjs = pObj->pNext;
else
{
PSUPDRVOBJ pObjPrev;
for (pObjPrev = pDevExt->pObjs; pObjPrev; pObjPrev = pObjPrev->pNext)
if (pObjPrev->pNext == pObj)
{
pObjPrev->pNext = pObj->pNext;
break;
}
Assert(pObjPrev);
}
}
}
break;
}
}
RTSpinlockRelease(pDevExt->Spinlock, &SpinlockTmp);
/*
* Call the destructor and free the object if required.
*/
if (fDestroy)
{
Log(("SUPR0ObjRelease: destroying %p/%d (%p/%p) cpid=%RTproc pid=%RTproc dtor=%p\n",
pObj, pObj->enmType, pObj->pvUser1, pObj->pvUser2, pObj->CreatorProcess, RTProcSelf(), pObj->pfnDestructor));
if (pObj->pfnDestructor)
#ifdef RT_WITH_W64_UNWIND_HACK
supdrvNtWrapObjDestructor((PFNRT)pObj->pfnDestructor, pObj, pObj->pvUser1, pObj->pvUser2);
#else
pObj->pfnDestructor(pObj, pObj->pvUser1, pObj->pvUser2);
#endif
RTMemFree(pObj);
}
AssertMsg(pUsage, ("pvObj=%p\n", pvObj));
return pUsage ? VINF_SUCCESS : VERR_INVALID_PARAMETER;
}
/**
* Verifies that the current process can access the specified object.
*
* @returns The following IPRT status code:
* @retval VINF_SUCCESS if access was granted.
* @retval VERR_PERMISSION_DENIED if denied access.
* @retval VERR_INVALID_PARAMETER if invalid parameter.
*
* @param pvObj The identifier returned by SUPR0ObjRegister().
* @param pSession The session which wishes to access the object.
* @param pszObjName Object string name. This is optional and depends on the object type.
*
* @remark The caller is responsible for making sure the object isn't removed while
* we're inside this function. If uncertain about this, just call AddRef before calling us.
*/
SUPR0DECL(int) SUPR0ObjVerifyAccess(void *pvObj, PSUPDRVSESSION pSession, const char *pszObjName)
{
PSUPDRVOBJ pObj = (PSUPDRVOBJ)pvObj;
int rc;
/*
* Validate the input.
*/
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
AssertMsgReturn(VALID_PTR(pObj) && pObj->u32Magic == SUPDRVOBJ_MAGIC,
("Invalid pvObj=%p magic=%#x (exepcted %#x)\n", pvObj, pObj ? pObj->u32Magic : 0, SUPDRVOBJ_MAGIC),
VERR_INVALID_PARAMETER);
/*
* Check access. (returns true if a decision has been made.)
*/
rc = VERR_INTERNAL_ERROR;
if (supdrvOSObjCanAccess(pObj, pSession, pszObjName, &rc))
return rc;
/*
* Default policy is to allow the user to access his own
* stuff but nothing else.
*/
if (pObj->CreatorUid == pSession->Uid)
return VINF_SUCCESS;
return VERR_PERMISSION_DENIED;
}
/**
* Lock pages.
*
* @returns IPRT status code.
* @param pSession Session to which the locked memory should be associated.
* @param pvR3 Start of the memory range to lock.
* This must be page aligned.
* @param cb Size of the memory range to lock.
* This must be page aligned.
*/
SUPR0DECL(int) SUPR0LockMem(PSUPDRVSESSION pSession, RTR3PTR pvR3, uint32_t cPages, PRTHCPHYS paPages)
{
int rc;
SUPDRVMEMREF Mem = { NIL_RTR0MEMOBJ, NIL_RTR0MEMOBJ, MEMREF_TYPE_UNUSED };
const size_t cb = (size_t)cPages << PAGE_SHIFT;
LogFlow(("SUPR0LockMem: pSession=%p pvR3=%p cPages=%d paPages=%p\n", pSession, (void *)pvR3, cPages, paPages));
/*
* Verify input.
*/
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
AssertPtrReturn(paPages, VERR_INVALID_PARAMETER);
if ( RT_ALIGN_R3PT(pvR3, PAGE_SIZE, RTR3PTR) != pvR3
|| !pvR3)
{
Log(("pvR3 (%p) must be page aligned and not NULL!\n", (void *)pvR3));
return VERR_INVALID_PARAMETER;
}
#ifdef RT_OS_WINDOWS /* A temporary hack for windows, will be removed once all ring-3 code has been cleaned up. */
/* First check if we allocated it using SUPPageAlloc; if so then we don't need to lock it again */
rc = supdrvPageGetPhys(pSession, pvR3, cPages, paPages);
if (RT_SUCCESS(rc))
return rc;
#endif
/*
* Let IPRT do the job.
*/
Mem.eType = MEMREF_TYPE_LOCKED;
rc = RTR0MemObjLockUser(&Mem.MemObj, pvR3, cb, RTR0ProcHandleSelf());
if (RT_SUCCESS(rc))
{
uint32_t iPage = cPages;
AssertMsg(RTR0MemObjAddressR3(Mem.MemObj) == pvR3, ("%p == %p\n", RTR0MemObjAddressR3(Mem.MemObj), pvR3));
AssertMsg(RTR0MemObjSize(Mem.MemObj) == cb, ("%x == %x\n", RTR0MemObjSize(Mem.MemObj), cb));
while (iPage-- > 0)
{
paPages[iPage] = RTR0MemObjGetPagePhysAddr(Mem.MemObj, iPage);
if (RT_UNLIKELY(paPages[iPage] == NIL_RTCCPHYS))
{
AssertMsgFailed(("iPage=%d\n", iPage));
rc = VERR_INTERNAL_ERROR;
break;
}
}
if (RT_SUCCESS(rc))
rc = supdrvMemAdd(&Mem, pSession);
if (RT_FAILURE(rc))
{
int rc2 = RTR0MemObjFree(Mem.MemObj, false);
AssertRC(rc2);
}
}
return rc;
}
/**
* Unlocks the memory pointed to by pv.
*
* @returns IPRT status code.
* @param pSession Session to which the memory was locked.
* @param pvR3 Memory to unlock.
*/
SUPR0DECL(int) SUPR0UnlockMem(PSUPDRVSESSION pSession, RTR3PTR pvR3)
{
LogFlow(("SUPR0UnlockMem: pSession=%p pvR3=%p\n", pSession, (void *)pvR3));
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
#ifdef RT_OS_WINDOWS
/*
* Temporary hack for windows - SUPR0PageFree will unlock SUPR0PageAlloc
* allocations; ignore this call.
*/
if (supdrvPageWasLockedByPageAlloc(pSession, pvR3))
{
LogFlow(("Page will be unlocked in SUPR0PageFree -> ignore\n"));
return VINF_SUCCESS;
}
#endif
return supdrvMemRelease(pSession, (RTHCUINTPTR)pvR3, MEMREF_TYPE_LOCKED);
}
/**
* Allocates a chunk of page aligned memory with contiguous and fixed physical
* backing.
*
* @returns IPRT status code.
* @param pSession Session data.
* @param cb Number of bytes to allocate.
* @param ppvR0 Where to put the address of Ring-0 mapping the allocated memory.
* @param ppvR3 Where to put the address of Ring-3 mapping the allocated memory.
* @param pHCPhys Where to put the physical address of allocated memory.
*/
SUPR0DECL(int) SUPR0ContAlloc(PSUPDRVSESSION pSession, uint32_t cPages, PRTR0PTR ppvR0, PRTR3PTR ppvR3, PRTHCPHYS pHCPhys)
{
int rc;
SUPDRVMEMREF Mem = { NIL_RTR0MEMOBJ, NIL_RTR0MEMOBJ, MEMREF_TYPE_UNUSED };
LogFlow(("SUPR0ContAlloc: pSession=%p cPages=%d ppvR0=%p ppvR3=%p pHCPhys=%p\n", pSession, cPages, ppvR0, ppvR3, pHCPhys));
/*
* Validate input.
*/
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
if (!ppvR3 || !ppvR0 || !pHCPhys)
{
Log(("Null pointer. All of these should be set: pSession=%p ppvR0=%p ppvR3=%p pHCPhys=%p\n",
pSession, ppvR0, ppvR3, pHCPhys));
return VERR_INVALID_PARAMETER;
}
if (cPages < 1 || cPages >= 256)
{
Log(("Illegal request cPages=%d, must be greater than 0 and smaller than 256\n", cPages));
return VERR_INVALID_PARAMETER;
}
/*
* Let IPRT do the job.
*/
rc = RTR0MemObjAllocCont(&Mem.MemObj, cPages << PAGE_SHIFT, true /* executable R0 mapping */);
if (RT_SUCCESS(rc))
{
int rc2;
rc = RTR0MemObjMapUser(&Mem.MapObjR3, Mem.MemObj, (RTR3PTR)-1, 0,
RTMEM_PROT_EXEC | RTMEM_PROT_WRITE | RTMEM_PROT_READ, RTR0ProcHandleSelf());
if (RT_SUCCESS(rc))
{
Mem.eType = MEMREF_TYPE_CONT;
rc = supdrvMemAdd(&Mem, pSession);
if (!rc)
{
*ppvR0 = RTR0MemObjAddress(Mem.MemObj);
*ppvR3 = RTR0MemObjAddressR3(Mem.MapObjR3);
*pHCPhys = RTR0MemObjGetPagePhysAddr(Mem.MemObj, 0);
return 0;
}
rc2 = RTR0MemObjFree(Mem.MapObjR3, false);
AssertRC(rc2);
}
rc2 = RTR0MemObjFree(Mem.MemObj, false);
AssertRC(rc2);
}
return rc;
}
/**
* Frees memory allocated using SUPR0ContAlloc().
*
* @returns IPRT status code.
* @param pSession The session to which the memory was allocated.
* @param uPtr Pointer to the memory (ring-3 or ring-0).
*/
SUPR0DECL(int) SUPR0ContFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr)
{
LogFlow(("SUPR0ContFree: pSession=%p uPtr=%p\n", pSession, (void *)uPtr));
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
return supdrvMemRelease(pSession, uPtr, MEMREF_TYPE_CONT);
}
/**
* Allocates a chunk of page aligned memory with fixed physical backing below 4GB.
*
* The memory isn't zeroed.
*
* @returns IPRT status code.
* @param pSession Session data.
* @param cPages Number of pages to allocate.
* @param ppvR0 Where to put the address of Ring-0 mapping of the allocated memory.
* @param ppvR3 Where to put the address of Ring-3 mapping of the allocated memory.
* @param paPages Where to put the physical addresses of allocated memory.
*/
SUPR0DECL(int) SUPR0LowAlloc(PSUPDRVSESSION pSession, uint32_t cPages, PRTR0PTR ppvR0, PRTR3PTR ppvR3, PRTHCPHYS paPages)
{
unsigned iPage;
int rc;
SUPDRVMEMREF Mem = { NIL_RTR0MEMOBJ, NIL_RTR0MEMOBJ, MEMREF_TYPE_UNUSED };
LogFlow(("SUPR0LowAlloc: pSession=%p cPages=%d ppvR3=%p ppvR0=%p paPages=%p\n", pSession, cPages, ppvR3, ppvR0, paPages));
/*
* Validate input.
*/
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
if (!ppvR3 || !ppvR0 || !paPages)
{
Log(("Null pointer. All of these should be set: pSession=%p ppvR3=%p ppvR0=%p paPages=%p\n",
pSession, ppvR3, ppvR0, paPages));
return VERR_INVALID_PARAMETER;
}
if (cPages < 1 || cPages > 256)
{
Log(("Illegal request cPages=%d, must be greater than 0 and smaller than 256.\n", cPages));
return VERR_INVALID_PARAMETER;
}
/*
* Let IPRT do the work.
*/
rc = RTR0MemObjAllocLow(&Mem.MemObj, cPages << PAGE_SHIFT, true /* executable ring-0 mapping */);
if (RT_SUCCESS(rc))
{
int rc2;
rc = RTR0MemObjMapUser(&Mem.MapObjR3, Mem.MemObj, (RTR3PTR)-1, 0,
RTMEM_PROT_EXEC | RTMEM_PROT_WRITE | RTMEM_PROT_READ, RTR0ProcHandleSelf());
if (RT_SUCCESS(rc))
{
Mem.eType = MEMREF_TYPE_LOW;
rc = supdrvMemAdd(&Mem, pSession);
if (!rc)
{
for (iPage = 0; iPage < cPages; iPage++)
{
paPages[iPage] = RTR0MemObjGetPagePhysAddr(Mem.MemObj, iPage);
AssertMsg(!(paPages[iPage] & (PAGE_SIZE - 1)), ("iPage=%d Phys=%RHp\n", paPages[iPage]));
}
*ppvR0 = RTR0MemObjAddress(Mem.MemObj);
*ppvR3 = RTR0MemObjAddressR3(Mem.MapObjR3);
return 0;
}
rc2 = RTR0MemObjFree(Mem.MapObjR3, false);
AssertRC(rc2);
}
rc2 = RTR0MemObjFree(Mem.MemObj, false);
AssertRC(rc2);
}
return rc;
}
/**
* Frees memory allocated using SUPR0LowAlloc().
*
* @returns IPRT status code.
* @param pSession The session to which the memory was allocated.
* @param uPtr Pointer to the memory (ring-3 or ring-0).
*/
SUPR0DECL(int) SUPR0LowFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr)
{
LogFlow(("SUPR0LowFree: pSession=%p uPtr=%p\n", pSession, (void *)uPtr));
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
return supdrvMemRelease(pSession, uPtr, MEMREF_TYPE_LOW);
}
/**
* Allocates a chunk of memory with both R0 and R3 mappings.
* The memory is fixed and it's possible to query the physical addresses using SUPR0MemGetPhys().
*
* @returns IPRT status code.
* @param pSession The session to associated the allocation with.
* @param cb Number of bytes to allocate.
* @param ppvR0 Where to store the address of the Ring-0 mapping.
* @param ppvR3 Where to store the address of the Ring-3 mapping.
*/
SUPR0DECL(int) SUPR0MemAlloc(PSUPDRVSESSION pSession, uint32_t cb, PRTR0PTR ppvR0, PRTR3PTR ppvR3)
{
int rc;
SUPDRVMEMREF Mem = { NIL_RTR0MEMOBJ, NIL_RTR0MEMOBJ, MEMREF_TYPE_UNUSED };
LogFlow(("SUPR0MemAlloc: pSession=%p cb=%d ppvR0=%p ppvR3=%p\n", pSession, cb, ppvR0, ppvR3));
/*
* Validate input.
*/
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
AssertPtrReturn(ppvR0, VERR_INVALID_POINTER);
AssertPtrReturn(ppvR3, VERR_INVALID_POINTER);
if (cb < 1 || cb >= _4M)
{
Log(("Illegal request cb=%u; must be greater than 0 and smaller than 4MB.\n", cb));
return VERR_INVALID_PARAMETER;
}
/*
* Let IPRT do the work.
*/
rc = RTR0MemObjAllocPage(&Mem.MemObj, cb, true /* executable ring-0 mapping */);
if (RT_SUCCESS(rc))
{
int rc2;
rc = RTR0MemObjMapUser(&Mem.MapObjR3, Mem.MemObj, (RTR3PTR)-1, 0,
RTMEM_PROT_EXEC | RTMEM_PROT_WRITE | RTMEM_PROT_READ, RTR0ProcHandleSelf());
if (RT_SUCCESS(rc))
{
Mem.eType = MEMREF_TYPE_MEM;
rc = supdrvMemAdd(&Mem, pSession);
if (!rc)
{
*ppvR0 = RTR0MemObjAddress(Mem.MemObj);
*ppvR3 = RTR0MemObjAddressR3(Mem.MapObjR3);
return VINF_SUCCESS;
}
rc2 = RTR0MemObjFree(Mem.MapObjR3, false);
AssertRC(rc2);
}
rc2 = RTR0MemObjFree(Mem.MemObj, false);
AssertRC(rc2);
}
return rc;
}
/**
* Get the physical addresses of memory allocated using SUPR0MemAlloc().
*
* @returns IPRT status code.
* @param pSession The session to which the memory was allocated.
* @param uPtr The Ring-0 or Ring-3 address returned by SUPR0MemAlloc().
* @param paPages Where to store the physical addresses.
*/
SUPR0DECL(int) SUPR0MemGetPhys(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr, PSUPPAGE paPages) /** @todo switch this bugger to RTHCPHYS */
{
PSUPDRVBUNDLE pBundle;
RTSPINLOCKTMP SpinlockTmp = RTSPINLOCKTMP_INITIALIZER;
LogFlow(("SUPR0MemGetPhys: pSession=%p uPtr=%p paPages=%p\n", pSession, (void *)uPtr, paPages));
/*
* Validate input.
*/
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
AssertPtrReturn(paPages, VERR_INVALID_POINTER);
AssertReturn(uPtr, VERR_INVALID_PARAMETER);
/*
* Search for the address.
*/
RTSpinlockAcquire(pSession->Spinlock, &SpinlockTmp);
for (pBundle = &pSession->Bundle; pBundle; pBundle = pBundle->pNext)
{
if (pBundle->cUsed > 0)
{
unsigned i;
for (i = 0; i < RT_ELEMENTS(pBundle->aMem); i++)
{
if ( pBundle->aMem[i].eType == MEMREF_TYPE_MEM
&& pBundle->aMem[i].MemObj != NIL_RTR0MEMOBJ
&& ( (RTHCUINTPTR)RTR0MemObjAddress(pBundle->aMem[i].MemObj) == uPtr
|| ( pBundle->aMem[i].MapObjR3 != NIL_RTR0MEMOBJ
&& RTR0MemObjAddressR3(pBundle->aMem[i].MapObjR3) == uPtr)
)
)
{
const size_t cPages = RTR0MemObjSize(pBundle->aMem[i].MemObj) >> PAGE_SHIFT;
size_t iPage;
for (iPage = 0; iPage < cPages; iPage++)
{
paPages[iPage].Phys = RTR0MemObjGetPagePhysAddr(pBundle->aMem[i].MemObj, iPage);
paPages[iPage].uReserved = 0;
}
RTSpinlockRelease(pSession->Spinlock, &SpinlockTmp);
return VINF_SUCCESS;
}
}
}
}
RTSpinlockRelease(pSession->Spinlock, &SpinlockTmp);
Log(("Failed to find %p!!!\n", (void *)uPtr));
return VERR_INVALID_PARAMETER;
}
/**
* Free memory allocated by SUPR0MemAlloc().
*
* @returns IPRT status code.
* @param pSession The session owning the allocation.
* @param uPtr The Ring-0 or Ring-3 address returned by SUPR0MemAlloc().
*/
SUPR0DECL(int) SUPR0MemFree(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr)
{
LogFlow(("SUPR0MemFree: pSession=%p uPtr=%p\n", pSession, (void *)uPtr));
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
return supdrvMemRelease(pSession, uPtr, MEMREF_TYPE_MEM);
}
/**
* Allocates a chunk of memory with only a R3 mappings.
*
* The memory is fixed and it's possible to query the physical addresses using
* SUPR0MemGetPhys().
*
* @returns IPRT status code.
* @param pSession The session to associated the allocation with.
* @param cPages The number of pages to allocate.
* @param ppvR3 Where to store the address of the Ring-3 mapping.
* @param paPages Where to store the addresses of the pages. Optional.
*/
SUPR0DECL(int) SUPR0PageAlloc(PSUPDRVSESSION pSession, uint32_t cPages, PRTR3PTR ppvR3, PRTHCPHYS paPages)
{
AssertPtrReturn(ppvR3, VERR_INVALID_POINTER);
return SUPR0PageAllocEx(pSession, cPages, 0 /*fFlags*/, ppvR3, NULL, paPages);
}
/**
* Allocates a chunk of memory with a kernel or/and a user mode mapping.
*
* The memory is fixed and it's possible to query the physical addresses using
* SUPR0MemGetPhys().
*
* @returns IPRT status code.
* @param pSession The session to associated the allocation with.
* @param cPages The number of pages to allocate.
* @param fFlags Flags, reserved for the future. Must be zero.
* @param ppvR3 Where to store the address of the Ring-3 mapping.
* NULL if no ring-3 mapping.
* @param ppvR3 Where to store the address of the Ring-0 mapping.
* NULL if no ring-0 mapping.
* @param paPages Where to store the addresses of the pages. Optional.
*/
SUPR0DECL(int) SUPR0PageAllocEx(PSUPDRVSESSION pSession, uint32_t cPages, uint32_t fFlags, PRTR3PTR ppvR3, PRTR0PTR ppvR0, PRTHCPHYS paPages)
{
int rc;
SUPDRVMEMREF Mem = { NIL_RTR0MEMOBJ, NIL_RTR0MEMOBJ, MEMREF_TYPE_UNUSED };
LogFlow(("SUPR0PageAlloc: pSession=%p cb=%d ppvR3=%p\n", pSession, cPages, ppvR3));
/*
* Validate input. The allowed allocation size must be at least equal to the maximum guest VRAM size.
*/
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
AssertPtrNullReturn(ppvR3, VERR_INVALID_POINTER);
AssertPtrNullReturn(ppvR0, VERR_INVALID_POINTER);
AssertReturn(ppvR3 || ppvR0, VERR_INVALID_PARAMETER);
AssertReturn(!fFlags, VERR_INVALID_PARAMETER);
if (cPages < 1 || cPages > (128 * _1M)/PAGE_SIZE)
{
Log(("SUPR0PageAlloc: Illegal request cb=%u; must be greater than 0 and smaller than 128MB.\n", cPages));
return VERR_INVALID_PARAMETER;
}
/*
* Let IPRT do the work.
*/
if (ppvR0)
rc = RTR0MemObjAllocPage(&Mem.MemObj, (size_t)cPages * PAGE_SIZE, true /* fExecutable */);
else
rc = RTR0MemObjAllocPhysNC(&Mem.MemObj, (size_t)cPages * PAGE_SIZE, NIL_RTHCPHYS);
if (RT_SUCCESS(rc))
{
int rc2;
if (ppvR3)
rc = RTR0MemObjMapUser(&Mem.MapObjR3, Mem.MemObj, (RTR3PTR)-1, 0,
RTMEM_PROT_EXEC | RTMEM_PROT_WRITE | RTMEM_PROT_READ, RTR0ProcHandleSelf());
else
Mem.MapObjR3 = NIL_RTR0MEMOBJ;
if (RT_SUCCESS(rc))
{
Mem.eType = MEMREF_TYPE_PAGE;
rc = supdrvMemAdd(&Mem, pSession);
if (!rc)
{
if (ppvR3)
*ppvR3 = RTR0MemObjAddressR3(Mem.MapObjR3);
if (ppvR0)
*ppvR0 = RTR0MemObjAddress(Mem.MemObj);
if (paPages)
{
uint32_t iPage = cPages;
while (iPage-- > 0)
{
paPages[iPage] = RTR0MemObjGetPagePhysAddr(Mem.MapObjR3, iPage);
Assert(paPages[iPage] != NIL_RTHCPHYS);
}
}
return VINF_SUCCESS;
}
rc2 = RTR0MemObjFree(Mem.MapObjR3, false);
AssertRC(rc2);
}
rc2 = RTR0MemObjFree(Mem.MemObj, false);
AssertRC(rc2);
}
return rc;
}
#ifdef RT_OS_WINDOWS
/**
* Check if the pages were locked by SUPR0PageAlloc
*
* This function will be removed along with the lock/unlock hacks when
* we've cleaned up the ring-3 code properly.
*
* @returns boolean
* @param pSession The session to which the memory was allocated.
* @param pvR3 The Ring-3 address returned by SUPR0PageAlloc().
*/
static bool supdrvPageWasLockedByPageAlloc(PSUPDRVSESSION pSession, RTR3PTR pvR3)
{
PSUPDRVBUNDLE pBundle;
RTSPINLOCKTMP SpinlockTmp = RTSPINLOCKTMP_INITIALIZER;
LogFlow(("SUPR0PageIsLockedByPageAlloc: pSession=%p pvR3=%p\n", pSession, (void *)pvR3));
/*
* Search for the address.
*/
RTSpinlockAcquire(pSession->Spinlock, &SpinlockTmp);
for (pBundle = &pSession->Bundle; pBundle; pBundle = pBundle->pNext)
{
if (pBundle->cUsed > 0)
{
unsigned i;
for (i = 0; i < RT_ELEMENTS(pBundle->aMem); i++)
{
if ( pBundle->aMem[i].eType == MEMREF_TYPE_PAGE
&& pBundle->aMem[i].MemObj != NIL_RTR0MEMOBJ
&& pBundle->aMem[i].MapObjR3 != NIL_RTR0MEMOBJ
&& RTR0MemObjAddressR3(pBundle->aMem[i].MapObjR3) == pvR3)
{
RTSpinlockRelease(pSession->Spinlock, &SpinlockTmp);
return true;
}
}
}
}
RTSpinlockRelease(pSession->Spinlock, &SpinlockTmp);
return false;
}
/**
* Get the physical addresses of memory allocated using SUPR0PageAllocEx().
*
* This function will be removed along with the lock/unlock hacks when
* we've cleaned up the ring-3 code properly.
*
* @returns IPRT status code.
* @param pSession The session to which the memory was allocated.
* @param pvR3 The Ring-3 address returned by SUPR0PageAlloc().
* @param cPages Number of pages in paPages
* @param paPages Where to store the physical addresses.
*/
static int supdrvPageGetPhys(PSUPDRVSESSION pSession, RTR3PTR pvR3, uint32_t cPages, PRTHCPHYS paPages)
{
PSUPDRVBUNDLE pBundle;
RTSPINLOCKTMP SpinlockTmp = RTSPINLOCKTMP_INITIALIZER;
LogFlow(("supdrvPageGetPhys: pSession=%p pvR3=%p cPages=%#lx paPages=%p\n", pSession, (void *)pvR3, (long)cPages, paPages));
/*
* Search for the address.
*/
RTSpinlockAcquire(pSession->Spinlock, &SpinlockTmp);
for (pBundle = &pSession->Bundle; pBundle; pBundle = pBundle->pNext)
{
if (pBundle->cUsed > 0)
{
unsigned i;
for (i = 0; i < RT_ELEMENTS(pBundle->aMem); i++)
{
if ( pBundle->aMem[i].eType == MEMREF_TYPE_PAGE
&& pBundle->aMem[i].MemObj != NIL_RTR0MEMOBJ
&& pBundle->aMem[i].MapObjR3 != NIL_RTR0MEMOBJ
&& RTR0MemObjAddressR3(pBundle->aMem[i].MapObjR3) == pvR3)
{
uint32_t iPage;
size_t cMaxPages = RTR0MemObjSize(pBundle->aMem[i].MemObj) >> PAGE_SHIFT;
cPages = (uint32_t)RT_MIN(cMaxPages, cPages);
for (iPage = 0; iPage < cPages; iPage++)
paPages[iPage] = RTR0MemObjGetPagePhysAddr(pBundle->aMem[i].MemObj, iPage);
RTSpinlockRelease(pSession->Spinlock, &SpinlockTmp);
return VINF_SUCCESS;
}
}
}
}
RTSpinlockRelease(pSession->Spinlock, &SpinlockTmp);
return VERR_INVALID_PARAMETER;
}
#endif /* RT_OS_WINDOWS */
/**
* Free memory allocated by SUPR0PageAlloc() and SUPR0PageAllocEx().
*
* @returns IPRT status code.
* @param pSession The session owning the allocation.
* @param pvR3 The Ring-3 address returned by SUPR0PageAlloc() or
* SUPR0PageAllocEx().
*/
SUPR0DECL(int) SUPR0PageFree(PSUPDRVSESSION pSession, RTR3PTR pvR3)
{
LogFlow(("SUPR0PageFree: pSession=%p pvR3=%p\n", pSession, (void *)pvR3));
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
return supdrvMemRelease(pSession, (RTHCUINTPTR)pvR3, MEMREF_TYPE_PAGE);
}
/**
* Maps the GIP into userspace and/or get the physical address of the GIP.
*
* @returns IPRT status code.
* @param pSession Session to which the GIP mapping should belong.
* @param ppGipR3 Where to store the address of the ring-3 mapping. (optional)
* @param pHCPhysGip Where to store the physical address. (optional)
*
* @remark There is no reference counting on the mapping, so one call to this function
* count globally as one reference. One call to SUPR0GipUnmap() is will unmap GIP
* and remove the session as a GIP user.
*/
SUPR0DECL(int) SUPR0GipMap(PSUPDRVSESSION pSession, PRTR3PTR ppGipR3, PRTHCPHYS pHCPhysGip)
{
int rc = 0;
PSUPDRVDEVEXT pDevExt = pSession->pDevExt;
RTR3PTR pGip = NIL_RTR3PTR;
RTHCPHYS HCPhys = NIL_RTHCPHYS;
LogFlow(("SUPR0GipMap: pSession=%p ppGipR3=%p pHCPhysGip=%p\n", pSession, ppGipR3, pHCPhysGip));
/*
* Validate
*/
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
AssertPtrNullReturn(ppGipR3, VERR_INVALID_POINTER);
AssertPtrNullReturn(pHCPhysGip, VERR_INVALID_POINTER);
RTSemFastMutexRequest(pDevExt->mtxGip);
if (pDevExt->pGip)
{
/*
* Map it?
*/
if (ppGipR3)
{
if (pSession->GipMapObjR3 == NIL_RTR0MEMOBJ)
rc = RTR0MemObjMapUser(&pSession->GipMapObjR3, pDevExt->GipMemObj, (RTR3PTR)-1, 0,
RTMEM_PROT_READ, RTR0ProcHandleSelf());
if (RT_SUCCESS(rc))
{
pGip = RTR0MemObjAddressR3(pSession->GipMapObjR3);
rc = VINF_SUCCESS; /** @todo remove this and replace the !rc below with RT_SUCCESS(rc). */
}
}
/*
* Get physical address.
*/
if (pHCPhysGip && !rc)
HCPhys = pDevExt->HCPhysGip;
/*
* Reference globally.
*/
if (!pSession->fGipReferenced && !rc)
{
pSession->fGipReferenced = 1;
pDevExt->cGipUsers++;
if (pDevExt->cGipUsers == 1)
{
PSUPGLOBALINFOPAGE pGip = pDevExt->pGip;
unsigned i;
LogFlow(("SUPR0GipMap: Resumes GIP updating\n"));
for (i = 0; i < RT_ELEMENTS(pGip->aCPUs); i++)
ASMAtomicXchgU32(&pGip->aCPUs[i].u32TransactionId, pGip->aCPUs[i].u32TransactionId & ~(GIP_UPDATEHZ_RECALC_FREQ * 2 - 1));
ASMAtomicXchgU64(&pGip->u64NanoTSLastUpdateHz, 0);
rc = RTTimerStart(pDevExt->pGipTimer, 0);
AssertRC(rc); rc = VINF_SUCCESS;
}
}
}
else
{
rc = SUPDRV_ERR_GENERAL_FAILURE;
Log(("SUPR0GipMap: GIP is not available!\n"));
}
RTSemFastMutexRelease(pDevExt->mtxGip);
/*
* Write returns.
*/
if (pHCPhysGip)
*pHCPhysGip = HCPhys;
if (ppGipR3)
*ppGipR3 = pGip;
#ifdef DEBUG_DARWIN_GIP
OSDBGPRINT(("SUPR0GipMap: returns %d *pHCPhysGip=%lx *ppGip=%p GipMapObjR3\n", rc, (unsigned long)HCPhys, pGip, pSession->GipMapObjR3));
#else
LogFlow(("SUPR0GipMap: returns %d *pHCPhysGip=%lx *ppGipR3=%p\n", rc, (unsigned long)HCPhys, (void *)(uintptr_t)pGip));
#endif
return rc;
}
/**
* Unmaps any user mapping of the GIP and terminates all GIP access
* from this session.
*
* @returns IPRT status code.
* @param pSession Session to which the GIP mapping should belong.
*/
SUPR0DECL(int) SUPR0GipUnmap(PSUPDRVSESSION pSession)
{
int rc = VINF_SUCCESS;
PSUPDRVDEVEXT pDevExt = pSession->pDevExt;
#ifdef DEBUG_DARWIN_GIP
OSDBGPRINT(("SUPR0GipUnmap: pSession=%p pGip=%p GipMapObjR3=%p\n",
pSession,
pSession->GipMapObjR3 != NIL_RTR0MEMOBJ ? RTR0MemObjAddress(pSession->GipMapObjR3) : NULL,
pSession->GipMapObjR3));
#else
LogFlow(("SUPR0GipUnmap: pSession=%p\n", pSession));
#endif
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
RTSemFastMutexRequest(pDevExt->mtxGip);
/*
* Unmap anything?
*/
if (pSession->GipMapObjR3 != NIL_RTR0MEMOBJ)
{
rc = RTR0MemObjFree(pSession->GipMapObjR3, false);
AssertRC(rc);
if (RT_SUCCESS(rc))
pSession->GipMapObjR3 = NIL_RTR0MEMOBJ;
}
/*
* Dereference global GIP.
*/
if (pSession->fGipReferenced && !rc)
{
pSession->fGipReferenced = 0;
if ( pDevExt->cGipUsers > 0
&& !--pDevExt->cGipUsers)
{
LogFlow(("SUPR0GipUnmap: Suspends GIP updating\n"));
rc = RTTimerStop(pDevExt->pGipTimer); AssertRC(rc); rc = 0;
}
}
RTSemFastMutexRelease(pDevExt->mtxGip);
return rc;
}
/**
* Register a component factory with the support driver.
*
* This is currently restricted to kernel sessions only.
*
* @returns VBox status code.
* @retval VINF_SUCCESS on success.
* @retval VERR_NO_MEMORY if we're out of memory.
* @retval VERR_ALREADY_EXISTS if the factory has already been registered.
* @retval VERR_ACCESS_DENIED if it isn't a kernel session.
* @retval VERR_INVALID_PARAMETER on invalid parameter.
* @retval VERR_INVALID_POINTER on invalid pointer parameter.
*
* @param pSession The SUPDRV session (must be a ring-0 session).
* @param pFactory Pointer to the component factory registration structure.
*
* @remarks This interface is also available via SUPR0IdcComponentRegisterFactory.
*/
SUPR0DECL(int) SUPR0ComponentRegisterFactory(PSUPDRVSESSION pSession, PCSUPDRVFACTORY pFactory)
{
PSUPDRVFACTORYREG pNewReg;
const char *psz;
int rc;
/*
* Validate parameters.
*/
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
AssertReturn(pSession->R0Process == NIL_RTR0PROCESS, VERR_ACCESS_DENIED);
AssertPtrReturn(pFactory, VERR_INVALID_POINTER);
AssertPtrReturn(pFactory->pfnQueryFactoryInterface, VERR_INVALID_POINTER);
psz = (const char *)memchr(pFactory->szName, '\0', sizeof(pFactory->szName));
AssertReturn(psz, VERR_INVALID_PARAMETER);
/*
* Allocate and initialize a new registration structure.
*/
pNewReg = (PSUPDRVFACTORYREG)RTMemAlloc(sizeof(SUPDRVFACTORYREG));
if (pNewReg)
{
pNewReg->pNext = NULL;
pNewReg->pFactory = pFactory;
pNewReg->pSession = pSession;
pNewReg->cchName = psz - &pFactory->szName[0];
/*
* Add it to the tail of the list after checking for prior registration.
*/
rc = RTSemFastMutexRequest(pSession->pDevExt->mtxComponentFactory);
if (RT_SUCCESS(rc))
{
PSUPDRVFACTORYREG pPrev = NULL;
PSUPDRVFACTORYREG pCur = pSession->pDevExt->pComponentFactoryHead;
while (pCur && pCur->pFactory != pFactory)
{
pPrev = pCur;
pCur = pCur->pNext;
}
if (!pCur)
{
if (pPrev)
pPrev->pNext = pNewReg;
else
pSession->pDevExt->pComponentFactoryHead = pNewReg;
rc = VINF_SUCCESS;
}
else
rc = VERR_ALREADY_EXISTS;
RTSemFastMutexRelease(pSession->pDevExt->mtxComponentFactory);
}
if (RT_FAILURE(rc))
RTMemFree(pNewReg);
}
else
rc = VERR_NO_MEMORY;
return rc;
}
/**
* Deregister a component factory.
*
* @returns VBox status code.
* @retval VINF_SUCCESS on success.
* @retval VERR_NOT_FOUND if the factory wasn't registered.
* @retval VERR_ACCESS_DENIED if it isn't a kernel session.
* @retval VERR_INVALID_PARAMETER on invalid parameter.
* @retval VERR_INVALID_POINTER on invalid pointer parameter.
*
* @param pSession The SUPDRV session (must be a ring-0 session).
* @param pFactory Pointer to the component factory registration structure
* previously passed SUPR0ComponentRegisterFactory().
*
* @remarks This interface is also available via SUPR0IdcComponentDeregisterFactory.
*/
SUPR0DECL(int) SUPR0ComponentDeregisterFactory(PSUPDRVSESSION pSession, PCSUPDRVFACTORY pFactory)
{
int rc;
/*
* Validate parameters.
*/
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
AssertReturn(pSession->R0Process == NIL_RTR0PROCESS, VERR_ACCESS_DENIED);
AssertPtrReturn(pFactory, VERR_INVALID_POINTER);
/*
* Take the lock and look for the registration record.
*/
rc = RTSemFastMutexRequest(pSession->pDevExt->mtxComponentFactory);
if (RT_SUCCESS(rc))
{
PSUPDRVFACTORYREG pPrev = NULL;
PSUPDRVFACTORYREG pCur = pSession->pDevExt->pComponentFactoryHead;
while (pCur && pCur->pFactory != pFactory)
{
pPrev = pCur;
pCur = pCur->pNext;
}
if (pCur)
{
if (!pPrev)
pSession->pDevExt->pComponentFactoryHead = pCur->pNext;
else
pPrev->pNext = pCur->pNext;
pCur->pNext = NULL;
pCur->pFactory = NULL;
pCur->pSession = NULL;
rc = VINF_SUCCESS;
}
else
rc = VERR_NOT_FOUND;
RTSemFastMutexRelease(pSession->pDevExt->mtxComponentFactory);
RTMemFree(pCur);
}
return rc;
}
/**
* Queries a component factory.
*
* @returns VBox status code.
* @retval VERR_INVALID_PARAMETER on invalid parameter.
* @retval VERR_INVALID_POINTER on invalid pointer parameter.
* @retval VERR_SUPDRV_COMPONENT_NOT_FOUND if the component factory wasn't found.
* @retval VERR_SUPDRV_INTERFACE_NOT_SUPPORTED if the interface wasn't supported.
*
* @param pSession The SUPDRV session.
* @param pszName The name of the component factory.
* @param pszInterfaceUuid The UUID of the factory interface (stringified).
* @param ppvFactoryIf Where to store the factory interface.
*/
SUPR0DECL(int) SUPR0ComponentQueryFactory(PSUPDRVSESSION pSession, const char *pszName, const char *pszInterfaceUuid, void **ppvFactoryIf)
{
const char *pszEnd;
size_t cchName;
int rc;
/*
* Validate parameters.
*/
AssertReturn(SUP_IS_SESSION_VALID(pSession), VERR_INVALID_PARAMETER);
AssertPtrReturn(pszName, VERR_INVALID_POINTER);
pszEnd = memchr(pszName, '\0', RT_SIZEOFMEMB(SUPDRVFACTORY, szName));
AssertReturn(pszEnd, VERR_INVALID_PARAMETER);
cchName = pszEnd - pszName;
AssertPtrReturn(pszInterfaceUuid, VERR_INVALID_POINTER);
pszEnd = memchr(pszInterfaceUuid, '\0', RTUUID_STR_LENGTH);
AssertReturn(pszEnd, VERR_INVALID_PARAMETER);
AssertPtrReturn(ppvFactoryIf, VERR_INVALID_POINTER);
*ppvFactoryIf = NULL;
/*
* Take the lock and try all factories by this name.
*/
rc = RTSemFastMutexRequest(pSession->pDevExt->mtxComponentFactory);
if (RT_SUCCESS(rc))
{
PSUPDRVFACTORYREG pCur = pSession->pDevExt->pComponentFactoryHead;
rc = VERR_SUPDRV_COMPONENT_NOT_FOUND;
while (pCur)
{
if ( pCur->cchName == cchName
&& !memcmp(pCur->pFactory->szName, pszName, cchName))
{
#ifdef RT_WITH_W64_UNWIND_HACK
void *pvFactory = supdrvNtWrapQueryFactoryInterface((PFNRT)pCur->pFactory->pfnQueryFactoryInterface, pCur->pFactory, pSession, pszInterfaceUuid);
#else
void *pvFactory = pCur->pFactory->pfnQueryFactoryInterface(pCur->pFactory, pSession, pszInterfaceUuid);
#endif
if (pvFactory)
{
*ppvFactoryIf = pvFactory;
rc = VINF_SUCCESS;
break;
}
rc = VERR_SUPDRV_INTERFACE_NOT_SUPPORTED;
}
/* next */
pCur = pCur->pNext;
}
RTSemFastMutexRelease(pSession->pDevExt->mtxComponentFactory);
}
return rc;
}
/**
* Adds a memory object to the session.
*
* @returns IPRT status code.
* @param pMem Memory tracking structure containing the
* information to track.
* @param pSession The session.
*/
static int supdrvMemAdd(PSUPDRVMEMREF pMem, PSUPDRVSESSION pSession)
{
PSUPDRVBUNDLE pBundle;
RTSPINLOCKTMP SpinlockTmp = RTSPINLOCKTMP_INITIALIZER;
/*
* Find free entry and record the allocation.
*/
RTSpinlockAcquire(pSession->Spinlock, &SpinlockTmp);
for (pBundle = &pSession->Bundle; pBundle; pBundle = pBundle->pNext)
{
if (pBundle->cUsed < RT_ELEMENTS(pBundle->aMem))
{
unsigned i;
for (i = 0; i < RT_ELEMENTS(pBundle->aMem); i++)
{
if (pBundle->aMem[i].MemObj == NIL_RTR0MEMOBJ)
{
pBundle->cUsed++;
pBundle->aMem[i] = *pMem;
RTSpinlockRelease(pSession->Spinlock, &SpinlockTmp);
return VINF_SUCCESS;
}
}
AssertFailed(); /* !!this can't be happening!!! */
}
}
RTSpinlockRelease(pSession->Spinlock, &SpinlockTmp);
/*
* Need to allocate a new bundle.
* Insert into the last entry in the bundle.
*/
pBundle = (PSUPDRVBUNDLE)RTMemAllocZ(sizeof(*pBundle));
if (!pBundle)
return VERR_NO_MEMORY;
/* take last entry. */
pBundle->cUsed++;
pBundle->aMem[RT_ELEMENTS(pBundle->aMem) - 1] = *pMem;
/* insert into list. */
RTSpinlockAcquire(pSession->Spinlock, &SpinlockTmp);
pBundle->pNext = pSession->Bundle.pNext;
pSession->Bundle.pNext = pBundle;
RTSpinlockRelease(pSession->Spinlock, &SpinlockTmp);
return VINF_SUCCESS;
}
/**
* Releases a memory object referenced by pointer and type.
*
* @returns IPRT status code.
* @param pSession Session data.
* @param uPtr Pointer to memory. This is matched against both the R0 and R3 addresses.
* @param eType Memory type.
*/
static int supdrvMemRelease(PSUPDRVSESSION pSession, RTHCUINTPTR uPtr, SUPDRVMEMREFTYPE eType)
{
PSUPDRVBUNDLE pBundle;
RTSPINLOCKTMP SpinlockTmp = RTSPINLOCKTMP_INITIALIZER;
/*
* Validate input.
*/
if (!uPtr)
{
Log(("Illegal address %p\n", (void *)uPtr));
return VERR_INVALID_PARAMETER;
}
/*
* Search for the address.
*/
RTSpinlockAcquire(pSession->Spinlock, &SpinlockTmp);
for (pBundle = &pSession->Bundle; pBundle; pBundle = pBundle->pNext)
{
if (pBundle->cUsed > 0)
{
unsigned i;
for (i = 0; i < RT_ELEMENTS(pBundle->aMem); i++)
{
if ( pBundle->aMem[i].eType == eType
&& pBundle->aMem[i].MemObj != NIL_RTR0MEMOBJ
&& ( (RTHCUINTPTR)RTR0MemObjAddress(pBundle->aMem[i].MemObj) == uPtr
|| ( pBundle->aMem[i].MapObjR3 != NIL_RTR0MEMOBJ
&& RTR0MemObjAddressR3(pBundle->aMem[i].MapObjR3) == uPtr))
)
{
/* Make a copy of it and release it outside the spinlock. */
SUPDRVMEMREF Mem = pBundle->aMem[i];
pBundle->aMem[i].eType = MEMREF_TYPE_UNUSED;
pBundle->aMem[i].MemObj = NIL_RTR0MEMOBJ;
pBundle->aMem[i].MapObjR3 = NIL_RTR0MEMOBJ;
RTSpinlockRelease(pSession->Spinlock, &SpinlockTmp);
if (Mem.MapObjR3 != NIL_RTR0MEMOBJ)
{
int rc = RTR0MemObjFree(Mem.MapObjR3, false);
AssertRC(rc); /** @todo figure out how to handle this. */
}
if (Mem.MemObj != NIL_RTR0MEMOBJ)
{
int rc = RTR0MemObjFree(Mem.MemObj, false);
AssertRC(rc); /** @todo figure out how to handle this. */
}
return VINF_SUCCESS;
}
}
}
}
RTSpinlockRelease(pSession->Spinlock, &SpinlockTmp);
Log(("Failed to find %p!!! (eType=%d)\n", (void *)uPtr, eType));
return VERR_INVALID_PARAMETER;
}
/**
* Opens an image. If it's the first time it's opened the call must upload
* the bits using the supdrvIOCtl_LdrLoad() / SUPDRV_IOCTL_LDR_LOAD function.
*
* This is the 1st step of the loading.
*
* @returns IPRT status code.
* @param pDevExt Device globals.
* @param pSession Session data.
* @param pReq The open request.
*/
static int supdrvIOCtl_LdrOpen(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDROPEN pReq)
{
PSUPDRVLDRIMAGE pImage;
unsigned cb;
void *pv;
LogFlow(("supdrvIOCtl_LdrOpen: szName=%s cbImage=%d\n", pReq->u.In.szName, pReq->u.In.cbImage));
/*
* Check if we got an instance of the image already.
*/
RTSemFastMutexRequest(pDevExt->mtxLdr);
for (pImage = pDevExt->pLdrImages; pImage; pImage = pImage->pNext)
{
if (!strcmp(pImage->szName, pReq->u.In.szName))
{
pImage->cUsage++;
pReq->u.Out.pvImageBase = pImage->pvImage;
pReq->u.Out.fNeedsLoading = pImage->uState == SUP_IOCTL_LDR_OPEN;
supdrvLdrAddUsage(pSession, pImage);
RTSemFastMutexRelease(pDevExt->mtxLdr);
return VINF_SUCCESS;
}
}
/* (not found - add it!) */
/*
* Allocate memory.
*/
cb = pReq->u.In.cbImage + sizeof(SUPDRVLDRIMAGE) + 31;
pv = RTMemExecAlloc(cb);
if (!pv)
{
RTSemFastMutexRelease(pDevExt->mtxLdr);
Log(("supdrvIOCtl_LdrOpen: RTMemExecAlloc(%u) failed\n", cb));
return VERR_NO_MEMORY;
}
/*
* Setup and link in the LDR stuff.
*/
pImage = (PSUPDRVLDRIMAGE)pv;
pImage->pvImage = RT_ALIGN_P(pImage + 1, 32);
pImage->cbImage = pReq->u.In.cbImage;
pImage->pfnModuleInit = NULL;
pImage->pfnModuleTerm = NULL;
pImage->pfnServiceReqHandler = NULL;
pImage->uState = SUP_IOCTL_LDR_OPEN;
pImage->cUsage = 1;
strcpy(pImage->szName, pReq->u.In.szName);
pImage->pNext = pDevExt->pLdrImages;
pDevExt->pLdrImages = pImage;
supdrvLdrAddUsage(pSession, pImage);
pReq->u.Out.pvImageBase = pImage->pvImage;
pReq->u.Out.fNeedsLoading = true;
RTSemFastMutexRelease(pDevExt->mtxLdr);
#if defined(RT_OS_WINDOWS) && defined(DEBUG)
SUPR0Printf("VBoxDrv: windbg> .reload /f %s=%#p\n", pImage->szName, pImage->pvImage);
#endif
return VINF_SUCCESS;
}
/**
* Loads the image bits.
*
* This is the 2nd step of the loading.
*
* @returns IPRT status code.
* @param pDevExt Device globals.
* @param pSession Session data.
* @param pReq The request.
*/
static int supdrvIOCtl_LdrLoad(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDRLOAD pReq)
{
PSUPDRVLDRUSAGE pUsage;
PSUPDRVLDRIMAGE pImage;
int rc;
LogFlow(("supdrvIOCtl_LdrLoad: pvImageBase=%p cbImage=%d\n", pReq->u.In.pvImageBase, pReq->u.In.cbImage));
/*
* Find the ldr image.
*/
RTSemFastMutexRequest(pDevExt->mtxLdr);
pUsage = pSession->pLdrUsage;
while (pUsage && pUsage->pImage->pvImage != pReq->u.In.pvImageBase)
pUsage = pUsage->pNext;
if (!pUsage)
{
RTSemFastMutexRelease(pDevExt->mtxLdr);
Log(("SUP_IOCTL_LDR_LOAD: couldn't find image!\n"));
return VERR_INVALID_HANDLE;
}
pImage = pUsage->pImage;
if (pImage->cbImage != pReq->u.In.cbImage)
{
RTSemFastMutexRelease(pDevExt->mtxLdr);
Log(("SUP_IOCTL_LDR_LOAD: image size mismatch!! %d(prep) != %d(load)\n", pImage->cbImage, pReq->u.In.cbImage));
return VERR_INVALID_HANDLE;
}
if (pImage->uState != SUP_IOCTL_LDR_OPEN)
{
unsigned uState = pImage->uState;
RTSemFastMutexRelease(pDevExt->mtxLdr);
if (uState != SUP_IOCTL_LDR_LOAD)
AssertMsgFailed(("SUP_IOCTL_LDR_LOAD: invalid image state %d (%#x)!\n", uState, uState));
return SUPDRV_ERR_ALREADY_LOADED;
}
switch (pReq->u.In.eEPType)
{
case SUPLDRLOADEP_NOTHING:
break;
case SUPLDRLOADEP_VMMR0:
if ( !pReq->u.In.EP.VMMR0.pvVMMR0
|| !pReq->u.In.EP.VMMR0.pvVMMR0EntryInt
|| !pReq->u.In.EP.VMMR0.pvVMMR0EntryFast
|| !pReq->u.In.EP.VMMR0.pvVMMR0EntryEx)
{
RTSemFastMutexRelease(pDevExt->mtxLdr);
Log(("NULL pointer: pvVMMR0=%p pvVMMR0EntryInt=%p pvVMMR0EntryFast=%p pvVMMR0EntryEx=%p!\n",
pReq->u.In.EP.VMMR0.pvVMMR0, pReq->u.In.EP.VMMR0.pvVMMR0EntryInt,
pReq->u.In.EP.VMMR0.pvVMMR0EntryFast, pReq->u.In.EP.VMMR0.pvVMMR0EntryEx));
return VERR_INVALID_PARAMETER;
}
/** @todo validate pReq->u.In.EP.VMMR0.pvVMMR0 against pvImage! */
if ( (uintptr_t)pReq->u.In.EP.VMMR0.pvVMMR0EntryInt - (uintptr_t)pImage->pvImage >= pReq->u.In.cbImage
|| (uintptr_t)pReq->u.In.EP.VMMR0.pvVMMR0EntryFast - (uintptr_t)pImage->pvImage >= pReq->u.In.cbImage
|| (uintptr_t)pReq->u.In.EP.VMMR0.pvVMMR0EntryEx - (uintptr_t)pImage->pvImage >= pReq->u.In.cbImage)
{
RTSemFastMutexRelease(pDevExt->mtxLdr);
Log(("Out of range (%p LB %#x): pvVMMR0EntryInt=%p, pvVMMR0EntryFast=%p or pvVMMR0EntryEx=%p is NULL!\n",
pImage->pvImage, pReq->u.In.cbImage, pReq->u.In.EP.VMMR0.pvVMMR0EntryInt,
pReq->u.In.EP.VMMR0.pvVMMR0EntryFast, pReq->u.In.EP.VMMR0.pvVMMR0EntryEx));
return VERR_INVALID_PARAMETER;
}
break;
case SUPLDRLOADEP_SERVICE:
if (!pReq->u.In.EP.Service.pfnServiceReq)
{
RTSemFastMutexRelease(pDevExt->mtxLdr);
Log(("NULL pointer: pfnServiceReq=%p!\n", pReq->u.In.EP.Service.pfnServiceReq));
return VERR_INVALID_PARAMETER;
}
if ((uintptr_t)pReq->u.In.EP.Service.pfnServiceReq - (uintptr_t)pImage->pvImage >= pReq->u.In.cbImage)
{
RTSemFastMutexRelease(pDevExt->mtxLdr);
Log(("Out of range (%p LB %#x): pfnServiceReq=%p, pvVMMR0EntryFast=%p or pvVMMR0EntryEx=%p is NULL!\n",
pImage->pvImage, pReq->u.In.cbImage, pReq->u.In.EP.Service.pfnServiceReq));
return VERR_INVALID_PARAMETER;
}
if ( pReq->u.In.EP.Service.apvReserved[0] != NIL_RTR0PTR
|| pReq->u.In.EP.Service.apvReserved[1] != NIL_RTR0PTR
|| pReq->u.In.EP.Service.apvReserved[2] != NIL_RTR0PTR)
{
RTSemFastMutexRelease(pDevExt->mtxLdr);
Log(("Out of range (%p LB %#x): apvReserved={%p,%p,%p} MBZ!\n",
pImage->pvImage, pReq->u.In.cbImage,
pReq->u.In.EP.Service.apvReserved[0],
pReq->u.In.EP.Service.apvReserved[1],
pReq->u.In.EP.Service.apvReserved[2]));
return VERR_INVALID_PARAMETER;
}
break;
default:
RTSemFastMutexRelease(pDevExt->mtxLdr);
Log(("Invalid eEPType=%d\n", pReq->u.In.eEPType));
return VERR_INVALID_PARAMETER;
}
if ( pReq->u.In.pfnModuleInit
&& (uintptr_t)pReq->u.In.pfnModuleInit - (uintptr_t)pImage->pvImage >= pReq->u.In.cbImage)
{
RTSemFastMutexRelease(pDevExt->mtxLdr);
Log(("SUP_IOCTL_LDR_LOAD: pfnModuleInit=%p is outside the image (%p %d bytes)\n",
pReq->u.In.pfnModuleInit, pImage->pvImage, pReq->u.In.cbImage));
return VERR_INVALID_PARAMETER;
}
if ( pReq->u.In.pfnModuleTerm
&& (uintptr_t)pReq->u.In.pfnModuleTerm - (uintptr_t)pImage->pvImage >= pReq->u.In.cbImage)
{
RTSemFastMutexRelease(pDevExt->mtxLdr);
Log(("SUP_IOCTL_LDR_LOAD: pfnModuleTerm=%p is outside the image (%p %d bytes)\n",
pReq->u.In.pfnModuleTerm, pImage->pvImage, pReq->u.In.cbImage));
return VERR_INVALID_PARAMETER;
}
/*
* Copy the memory.
*/
/* no need to do try/except as this is a buffered request. */
memcpy(pImage->pvImage, &pReq->u.In.achImage[0], pImage->cbImage);
pImage->uState = SUP_IOCTL_LDR_LOAD;
pImage->pfnModuleInit = pReq->u.In.pfnModuleInit;
pImage->pfnModuleTerm = pReq->u.In.pfnModuleTerm;
pImage->offSymbols = pReq->u.In.offSymbols;
pImage->cSymbols = pReq->u.In.cSymbols;
pImage->offStrTab = pReq->u.In.offStrTab;
pImage->cbStrTab = pReq->u.In.cbStrTab;
/*
* Update any entry points.
*/
switch (pReq->u.In.eEPType)
{
default:
case SUPLDRLOADEP_NOTHING:
rc = VINF_SUCCESS;
break;
case SUPLDRLOADEP_VMMR0:
rc = supdrvLdrSetVMMR0EPs(pDevExt, pReq->u.In.EP.VMMR0.pvVMMR0, pReq->u.In.EP.VMMR0.pvVMMR0EntryInt,
pReq->u.In.EP.VMMR0.pvVMMR0EntryFast, pReq->u.In.EP.VMMR0.pvVMMR0EntryEx);
break;
case SUPLDRLOADEP_SERVICE:
pImage->pfnServiceReqHandler = pReq->u.In.EP.Service.pfnServiceReq;
rc = VINF_SUCCESS;
break;
}
/*
* On success call the module initialization.
*/
LogFlow(("supdrvIOCtl_LdrLoad: pfnModuleInit=%p\n", pImage->pfnModuleInit));
if (RT_SUCCESS(rc) && pImage->pfnModuleInit)
{
Log(("supdrvIOCtl_LdrLoad: calling pfnModuleInit=%p\n", pImage->pfnModuleInit));
#ifdef RT_WITH_W64_UNWIND_HACK
rc = supdrvNtWrapModuleInit((PFNRT)pImage->pfnModuleInit);
#else
rc = pImage->pfnModuleInit();
#endif
if (rc && pDevExt->pvVMMR0 == pImage->pvImage)
supdrvLdrUnsetVMMR0EPs(pDevExt);
}
if (rc)
pImage->uState = SUP_IOCTL_LDR_OPEN;
RTSemFastMutexRelease(pDevExt->mtxLdr);
return rc;
}
/**
* Frees a previously loaded (prep'ed) image.
*
* @returns IPRT status code.
* @param pDevExt Device globals.
* @param pSession Session data.
* @param pReq The request.
*/
static int supdrvIOCtl_LdrFree(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDRFREE pReq)
{
int rc;
PSUPDRVLDRUSAGE pUsagePrev;
PSUPDRVLDRUSAGE pUsage;
PSUPDRVLDRIMAGE pImage;
LogFlow(("supdrvIOCtl_LdrFree: pvImageBase=%p\n", pReq->u.In.pvImageBase));
/*
* Find the ldr image.
*/
RTSemFastMutexRequest(pDevExt->mtxLdr);
pUsagePrev = NULL;
pUsage = pSession->pLdrUsage;
while (pUsage && pUsage->pImage->pvImage != pReq->u.In.pvImageBase)
{
pUsagePrev = pUsage;
pUsage = pUsage->pNext;
}
if (!pUsage)
{
RTSemFastMutexRelease(pDevExt->mtxLdr);
Log(("SUP_IOCTL_LDR_FREE: couldn't find image!\n"));
return VERR_INVALID_HANDLE;
}
/*
* Check if we can remove anything.
*/
rc = VINF_SUCCESS;
pImage = pUsage->pImage;
if (pImage->cUsage <= 1 || pUsage->cUsage <= 1)
{
/*
* Check if there are any objects with destructors in the image, if
* so leave it for the session cleanup routine so we get a chance to
* clean things up in the right order and not leave them all dangling.
*/
RTSPINLOCKTMP SpinlockTmp = RTSPINLOCKTMP_INITIALIZER;
RTSpinlockAcquire(pDevExt->Spinlock, &SpinlockTmp);
if (pImage->cUsage <= 1)
{
PSUPDRVOBJ pObj;
for (pObj = pDevExt->pObjs; pObj; pObj = pObj->pNext)
if (RT_UNLIKELY((uintptr_t)pObj->pfnDestructor - (uintptr_t)pImage->pvImage < pImage->cbImage))
{
rc = VERR_SHARING_VIOLATION; /** @todo VERR_DANGLING_OBJECTS */
break;
}
}
else
{
PSUPDRVUSAGE pGenUsage;
for (pGenUsage = pSession->pUsage; pGenUsage; pGenUsage = pGenUsage->pNext)
if (RT_UNLIKELY((uintptr_t)pGenUsage->pObj->pfnDestructor - (uintptr_t)pImage->pvImage < pImage->cbImage))
{
rc = VERR_SHARING_VIOLATION; /** @todo VERR_DANGLING_OBJECTS */
break;
}
}
RTSpinlockRelease(pDevExt->Spinlock, &SpinlockTmp);
if (rc == VINF_SUCCESS)
{
/* unlink it */
if (pUsagePrev)
pUsagePrev->pNext = pUsage->pNext;
else
pSession->pLdrUsage = pUsage->pNext;
/* free it */
pUsage->pImage = NULL;
pUsage->pNext = NULL;
RTMemFree(pUsage);
/*
* Derefrence the image.
*/
if (pImage->cUsage <= 1)
supdrvLdrFree(pDevExt, pImage);
else
pImage->cUsage--;
}
else
Log(("supdrvIOCtl_LdrFree: Dangling objects in %p/%s!\n", pImage->pvImage, pImage->szName));
}
else
{
/*
* Dereference both image and usage.
*/
pImage->cUsage--;
pUsage->cUsage--;
}
RTSemFastMutexRelease(pDevExt->mtxLdr);
return VINF_SUCCESS;
}
/**
* Gets the address of a symbol in an open image.
*
* @returns 0 on success.
* @returns SUPDRV_ERR_* on failure.
* @param pDevExt Device globals.
* @param pSession Session data.
* @param pReq The request buffer.
*/
static int supdrvIOCtl_LdrGetSymbol(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPLDRGETSYMBOL pReq)
{
PSUPDRVLDRIMAGE pImage;
PSUPDRVLDRUSAGE pUsage;
uint32_t i;
PSUPLDRSYM paSyms;
const char *pchStrings;
const size_t cbSymbol = strlen(pReq->u.In.szSymbol) + 1;
void *pvSymbol = NULL;
int rc = VERR_GENERAL_FAILURE;
Log3(("supdrvIOCtl_LdrGetSymbol: pvImageBase=%p szSymbol=\"%s\"\n", pReq->u.In.pvImageBase, pReq->u.In.szSymbol));
/*
* Find the ldr image.
*/
RTSemFastMutexRequest(pDevExt->mtxLdr);
pUsage = pSession->pLdrUsage;
while (pUsage && pUsage->pImage->pvImage != pReq->u.In.pvImageBase)
pUsage = pUsage->pNext;
if (!pUsage)
{
RTSemFastMutexRelease(pDevExt->mtxLdr);
Log(("SUP_IOCTL_LDR_GET_SYMBOL: couldn't find image!\n"));
return VERR_INVALID_HANDLE;
}
pImage = pUsage->pImage;
if (pImage->uState != SUP_IOCTL_LDR_LOAD)
{
unsigned uState = pImage->uState;
RTSemFastMutexRelease(pDevExt->mtxLdr);
Log(("SUP_IOCTL_LDR_GET_SYMBOL: invalid image state %d (%#x)!\n", uState, uState)); NOREF(uState);
return VERR_ALREADY_LOADED;
}
/*
* Search the symbol strings.
*/
pchStrings = (const char *)((uint8_t *)pImage->pvImage + pImage->offStrTab);
paSyms = (PSUPLDRSYM)((uint8_t *)pImage->pvImage + pImage->offSymbols);
for (i = 0; i < pImage->cSymbols; i++)
{
if ( paSyms[i].offSymbol < pImage->cbImage /* paranoia */
&& paSyms[i].offName + cbSymbol <= pImage->cbStrTab
&& !memcmp(pchStrings + paSyms[i].offName, pReq->u.In.szSymbol, cbSymbol))
{
pvSymbol = (uint8_t *)pImage->pvImage + paSyms[i].offSymbol;
rc = VINF_SUCCESS;
break;
}
}
RTSemFastMutexRelease(pDevExt->mtxLdr);
pReq->u.Out.pvSymbol = pvSymbol;
return rc;
}
/**
* Gets the address of a symbol in an open image or the support driver.
*
* @returns VINF_SUCCESS on success.
* @returns
* @param pDevExt Device globals.
* @param pSession Session data.
* @param pReq The request buffer.
*/
static int supdrvIDC_LdrGetSymbol(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPDRVIDCREQGETSYM pReq)
{
int rc = VINF_SUCCESS;
const char *pszSymbol = pReq->u.In.pszSymbol;
const char *pszModule = pReq->u.In.pszModule;
size_t cbSymbol;
char const *pszEnd;
uint32_t i;
/*
* Input validation.
*/
AssertPtrReturn(pszSymbol, VERR_INVALID_POINTER);
pszEnd = (char *)memchr(pszSymbol, '\0', 512);
AssertReturn(pszEnd, VERR_INVALID_PARAMETER);
cbSymbol = pszEnd - pszSymbol + 1;
if (pszModule)
{
AssertPtrReturn(pszModule, VERR_INVALID_POINTER);
pszEnd = (char *)memchr(pszModule, '\0', 64);
AssertReturn(pszEnd, VERR_INVALID_PARAMETER);
}
Log3(("supdrvIDC_LdrGetSymbol: pszModule=%p:{%s} pszSymbol=%p:{%s}\n", pszModule, pszModule, pszSymbol, pszSymbol));
if ( !pszModule
|| !strcmp(pszModule, "SupDrv"))
{
/*
* Search the support driver export table.
*/
for (i = 0; i < RT_ELEMENTS(g_aFunctions); i++)
if (!strcmp(g_aFunctions[i].szName, pszSymbol))
{
pReq->u.Out.pfnSymbol = g_aFunctions[i].pfn;
break;
}
}
else
{
/*
* Find the loader image.
*/
PSUPDRVLDRIMAGE pImage;
RTSemFastMutexRequest(pDevExt->mtxLdr);
for (pImage = pDevExt->pLdrImages; pImage; pImage = pImage->pNext)
if (!strcmp(pImage->szName, pszModule))
break;
if (pImage && pImage->uState == SUP_IOCTL_LDR_LOAD)
{
/*
* Search the symbol strings.
*/
const char *pchStrings = (const char *)((uint8_t *)pImage->pvImage + pImage->offStrTab);
PCSUPLDRSYM paSyms = (PCSUPLDRSYM)((uint8_t *)pImage->pvImage + pImage->offSymbols);
for (i = 0; i < pImage->cSymbols; i++)
{
if ( paSyms[i].offSymbol < pImage->cbImage /* paranoia */
&& paSyms[i].offName + cbSymbol <= pImage->cbStrTab
&& !memcmp(pchStrings + paSyms[i].offName, pszSymbol, cbSymbol))
{
/*
* Found it! Calc the symbol address and add a reference to the module.
*/
pReq->u.Out.pfnSymbol = (PFNRT)((uint8_t *)pImage->pvImage + paSyms[i].offSymbol);
rc = supdrvLdrAddUsage(pSession, pImage);
break;
}
}
}
else
rc = pImage ? VERR_WRONG_ORDER : VERR_MODULE_NOT_FOUND;
RTSemFastMutexRelease(pDevExt->mtxLdr);
}
return rc;
}
/**
* Updates the VMMR0 entry point pointers.
*
* @returns IPRT status code.
* @param pDevExt Device globals.
* @param pSession Session data.
* @param pVMMR0 VMMR0 image handle.
* @param pvVMMR0EntryInt VMMR0EntryInt address.
* @param pvVMMR0EntryFast VMMR0EntryFast address.
* @param pvVMMR0EntryEx VMMR0EntryEx address.
* @remark Caller must own the loader mutex.
*/
static int supdrvLdrSetVMMR0EPs(PSUPDRVDEVEXT pDevExt, void *pvVMMR0, void *pvVMMR0EntryInt, void *pvVMMR0EntryFast, void *pvVMMR0EntryEx)
{
int rc = VINF_SUCCESS;
LogFlow(("supdrvLdrSetR0EP pvVMMR0=%p pvVMMR0EntryInt=%p\n", pvVMMR0, pvVMMR0EntryInt));
/*
* Check if not yet set.
*/
if (!pDevExt->pvVMMR0)
{
pDevExt->pvVMMR0 = pvVMMR0;
pDevExt->pfnVMMR0EntryInt = pvVMMR0EntryInt;
pDevExt->pfnVMMR0EntryFast = pvVMMR0EntryFast;
pDevExt->pfnVMMR0EntryEx = pvVMMR0EntryEx;
}
else
{
/*
* Return failure or success depending on whether the values match or not.
*/
if ( pDevExt->pvVMMR0 != pvVMMR0
|| (void *)pDevExt->pfnVMMR0EntryInt != pvVMMR0EntryInt
|| (void *)pDevExt->pfnVMMR0EntryFast != pvVMMR0EntryFast
|| (void *)pDevExt->pfnVMMR0EntryEx != pvVMMR0EntryEx)
{
AssertMsgFailed(("SUP_IOCTL_LDR_SETR0EP: Already set pointing to a different module!\n"));
rc = VERR_INVALID_PARAMETER;
}
}
return rc;
}
/**
* Unsets the VMMR0 entry point installed by supdrvLdrSetR0EP.
*
* @param pDevExt Device globals.
*/
static void supdrvLdrUnsetVMMR0EPs(PSUPDRVDEVEXT pDevExt)
{
pDevExt->pvVMMR0 = NULL;
pDevExt->pfnVMMR0EntryInt = NULL;
pDevExt->pfnVMMR0EntryFast = NULL;
pDevExt->pfnVMMR0EntryEx = NULL;
}
/**
* Adds a usage reference in the specified session of an image.
*
* Called while owning the loader semaphore.
*
* @returns VINF_SUCCESS on success and VERR_NO_MEMORY on failure.
* @param pSession Session in question.
* @param pImage Image which the session is using.
*/
static int supdrvLdrAddUsage(PSUPDRVSESSION pSession, PSUPDRVLDRIMAGE pImage)
{
PSUPDRVLDRUSAGE pUsage;
LogFlow(("supdrvLdrAddUsage: pImage=%p\n", pImage));
/*
* Referenced it already?
*/
pUsage = pSession->pLdrUsage;
while (pUsage)
{
if (pUsage->pImage == pImage)
{
pUsage->cUsage++;
return VINF_SUCCESS;
}
pUsage = pUsage->pNext;
}
/*
* Allocate new usage record.
*/
pUsage = (PSUPDRVLDRUSAGE)RTMemAlloc(sizeof(*pUsage));
AssertReturn(pUsage, VERR_NO_MEMORY);
pUsage->cUsage = 1;
pUsage->pImage = pImage;
pUsage->pNext = pSession->pLdrUsage;
pSession->pLdrUsage = pUsage;
return VINF_SUCCESS;
}
/**
* Frees a load image.
*
* @param pDevExt Pointer to device extension.
* @param pImage Pointer to the image we're gonna free.
* This image must exit!
* @remark The caller MUST own SUPDRVDEVEXT::mtxLdr!
*/
static void supdrvLdrFree(PSUPDRVDEVEXT pDevExt, PSUPDRVLDRIMAGE pImage)
{
PSUPDRVLDRIMAGE pImagePrev;
LogFlow(("supdrvLdrFree: pImage=%p\n", pImage));
/* find it - arg. should've used doubly linked list. */
Assert(pDevExt->pLdrImages);
pImagePrev = NULL;
if (pDevExt->pLdrImages != pImage)
{
pImagePrev = pDevExt->pLdrImages;
while (pImagePrev->pNext != pImage)
pImagePrev = pImagePrev->pNext;
Assert(pImagePrev->pNext == pImage);
}
/* unlink */
if (pImagePrev)
pImagePrev->pNext = pImage->pNext;
else
pDevExt->pLdrImages = pImage->pNext;
/* check if this is VMMR0.r0 unset its entry point pointers. */
if (pDevExt->pvVMMR0 == pImage->pvImage)
supdrvLdrUnsetVMMR0EPs(pDevExt);
/* check for objects with destructors in this image. (Shouldn't happen.) */
if (pDevExt->pObjs)
{
unsigned cObjs = 0;
PSUPDRVOBJ pObj;
RTSPINLOCKTMP SpinlockTmp = RTSPINLOCKTMP_INITIALIZER;
RTSpinlockAcquire(pDevExt->Spinlock, &SpinlockTmp);
for (pObj = pDevExt->pObjs; pObj; pObj = pObj->pNext)
if (RT_UNLIKELY((uintptr_t)pObj->pfnDestructor - (uintptr_t)pImage->pvImage < pImage->cbImage))
{
pObj->pfnDestructor = NULL;
cObjs++;
}
RTSpinlockRelease(pDevExt->Spinlock, &SpinlockTmp);
if (cObjs)
OSDBGPRINT(("supdrvLdrFree: Image '%s' has %d dangling objects!\n", pImage->szName, cObjs));
}
/* call termination function if fully loaded. */
if ( pImage->pfnModuleTerm
&& pImage->uState == SUP_IOCTL_LDR_LOAD)
{
LogFlow(("supdrvIOCtl_LdrLoad: calling pfnModuleTerm=%p\n", pImage->pfnModuleTerm));
#ifdef RT_WITH_W64_UNWIND_HACK
supdrvNtWrapModuleTerm(pImage->pfnModuleTerm);
#else
pImage->pfnModuleTerm();
#endif
}
/* free the image */
pImage->cUsage = 0;
pImage->pNext = 0;
pImage->uState = SUP_IOCTL_LDR_FREE;
RTMemExecFree(pImage);
}
/**
* Implements the service call request.
*
* @returns VBox status code.
* @param pDevExt The device extension.
* @param pSession The calling session.
* @param pReq The request packet, valid.
*/
static int supdrvIOCtl_CallServiceModule(PSUPDRVDEVEXT pDevExt, PSUPDRVSESSION pSession, PSUPCALLSERVICE pReq)
{
#if !defined(RT_OS_WINDOWS) || defined(DEBUG)
int rc;
/*
* Find the module first in the module referenced by the calling session.
*/
rc = RTSemFastMutexRequest(pDevExt->mtxLdr);
if (RT_SUCCESS(rc))
{
PFNSUPR0SERVICEREQHANDLER pfnServiceReqHandler = NULL;
PSUPDRVLDRUSAGE pUsage;
for (pUsage = pSession->pLdrUsage; pUsage; pUsage = pUsage->pNext)
if ( pUsage->pImage->pfnServiceReqHandler
&& !strcmp(pUsage->pImage->szName, pReq->u.In.szName))
{
pfnServiceReqHandler = pUsage->pImage->pfnServiceReqHandler;
break;
}
RTSemFastMutexRelease(pDevExt->mtxLdr);
if (pfnServiceReqHandler)
{
/*
* Call it.
*/
if (pReq->Hdr.cbIn == SUP_IOCTL_CALL_SERVICE_SIZE(0))
#ifdef RT_WITH_W64_UNWIND_HACK
rc = supdrvNtWrapServiceReqHandler((PFNRT)pfnServiceReqHandler, pSession, pReq->u.In.uOperation, pReq->u.In.u64Arg, NULL);
#else
rc = pfnServiceReqHandler(pSession, pReq->u.In.uOperation, pReq->u.In.u64Arg, NULL);
#endif
else
#ifdef RT_WITH_W64_UNWIND_HACK
rc = supdrvNtWrapServiceReqHandler((PFNRT)pfnServiceReqHandler, pSession, pReq->u.In.uOperation,
pReq->u.In.u64Arg, (PSUPR0SERVICEREQHDR)&pReq->abReqPkt[0]);
#else
rc = pfnServiceReqHandler(pSession, pReq->u.In.uOperation, pReq->u.In.u64Arg, (PSUPR0SERVICEREQHDR)&pReq->abReqPkt[0]);
#endif
}
else
rc = VERR_SUPDRV_SERVICE_NOT_FOUND;
}
/* log it */
if ( RT_FAILURE(rc)
&& rc != VERR_INTERRUPTED
&& rc != VERR_TIMEOUT)
Log(("SUP_IOCTL_CALL_SERVICE: rc=%Rrc op=%u out=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
rc, pReq->u.In.uOperation, pReq->Hdr.cbOut, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
else
Log4(("SUP_IOCTL_CALL_SERVICE: rc=%Rrc op=%u out=%u arg=%RX64 p/t=%RTproc/%RTthrd\n",
rc, pReq->u.In.uOperation, pReq->Hdr.cbOut, pReq->u.In.u64Arg, RTProcSelf(), RTThreadNativeSelf()));
return rc;
#else /* RT_OS_WINDOWS && !DEBUG */
return VERR_NOT_IMPLEMENTED;
#endif /* RT_OS_WINDOWS && !DEBUG */
}
/**
* Gets the paging mode of the current CPU.
*
* @returns Paging mode, SUPPAGEINGMODE_INVALID on error.
*/
SUPR0DECL(SUPPAGINGMODE) SUPR0GetPagingMode(void)
{
SUPPAGINGMODE enmMode;
RTR0UINTREG cr0 = ASMGetCR0();
if ((cr0 & (X86_CR0_PG | X86_CR0_PE)) != (X86_CR0_PG | X86_CR0_PE))
enmMode = SUPPAGINGMODE_INVALID;
else
{
RTR0UINTREG cr4 = ASMGetCR4();
uint32_t fNXEPlusLMA = 0;
if (cr4 & X86_CR4_PAE)
{
uint32_t fAmdFeatures = ASMCpuId_EDX(0x80000001);
if (fAmdFeatures & (X86_CPUID_AMD_FEATURE_EDX_NX | X86_CPUID_AMD_FEATURE_EDX_LONG_MODE))
{
uint64_t efer = ASMRdMsr(MSR_K6_EFER);
if ((fAmdFeatures & X86_CPUID_AMD_FEATURE_EDX_NX) && (efer & MSR_K6_EFER_NXE))
fNXEPlusLMA |= RT_BIT(0);
if ((fAmdFeatures & X86_CPUID_AMD_FEATURE_EDX_LONG_MODE) && (efer & MSR_K6_EFER_LMA))
fNXEPlusLMA |= RT_BIT(1);
}
}
switch ((cr4 & (X86_CR4_PAE | X86_CR4_PGE)) | fNXEPlusLMA)
{
case 0:
enmMode = SUPPAGINGMODE_32_BIT;
break;
case X86_CR4_PGE:
enmMode = SUPPAGINGMODE_32_BIT_GLOBAL;
break;
case X86_CR4_PAE:
enmMode = SUPPAGINGMODE_PAE;
break;
case X86_CR4_PAE | RT_BIT(0):
enmMode = SUPPAGINGMODE_PAE_NX;
break;
case X86_CR4_PAE | X86_CR4_PGE:
enmMode = SUPPAGINGMODE_PAE_GLOBAL;
break;
case X86_CR4_PAE | X86_CR4_PGE | RT_BIT(0):
enmMode = SUPPAGINGMODE_PAE_GLOBAL;
break;
case RT_BIT(1) | X86_CR4_PAE:
enmMode = SUPPAGINGMODE_AMD64;
break;
case RT_BIT(1) | X86_CR4_PAE | RT_BIT(0):
enmMode = SUPPAGINGMODE_AMD64_NX;
break;
case RT_BIT(1) | X86_CR4_PAE | X86_CR4_PGE:
enmMode = SUPPAGINGMODE_AMD64_GLOBAL;
break;
case RT_BIT(1) | X86_CR4_PAE | X86_CR4_PGE | RT_BIT(0):
enmMode = SUPPAGINGMODE_AMD64_GLOBAL_NX;
break;
default:
AssertMsgFailed(("Cannot happen! cr4=%#x fNXEPlusLMA=%d\n", cr4, fNXEPlusLMA));
enmMode = SUPPAGINGMODE_INVALID;
break;
}
}
return enmMode;
}
/**
* Creates the GIP.
*
* @returns negative errno.
* @param pDevExt Instance data. GIP stuff may be updated.
*/
static int supdrvGipCreate(PSUPDRVDEVEXT pDevExt)
{
PSUPGLOBALINFOPAGE pGip;
RTHCPHYS HCPhysGip;
uint32_t u32SystemResolution;
uint32_t u32Interval;
int rc;
LogFlow(("supdrvGipCreate:\n"));
/* assert order */
Assert(pDevExt->u32SystemTimerGranularityGrant == 0);
Assert(pDevExt->GipMemObj == NIL_RTR0MEMOBJ);
Assert(!pDevExt->pGipTimer);
/*
* Allocate a suitable page with a default kernel mapping.
*/
rc = RTR0MemObjAllocLow(&pDevExt->GipMemObj, PAGE_SIZE, false);
if (RT_FAILURE(rc))
{
OSDBGPRINT(("supdrvGipCreate: failed to allocate the GIP page. rc=%d\n", rc));
return rc;
}
pGip = (PSUPGLOBALINFOPAGE)RTR0MemObjAddress(pDevExt->GipMemObj); AssertPtr(pGip);
HCPhysGip = RTR0MemObjGetPagePhysAddr(pDevExt->GipMemObj, 0); Assert(HCPhysGip != NIL_RTHCPHYS);
#if 0 /** @todo Disabled this as we didn't used to do it before and causes unnecessary stress on laptops.
* It only applies to Windows and should probably revisited later, if possible made part of the
* timer code (return min granularity in RTTimerGetSystemGranularity and set it in RTTimerStart). */
/*
* Try bump up the system timer resolution.
* The more interrupts the better...
*/
if ( RT_SUCCESS(RTTimerRequestSystemGranularity( 488281 /* 2048 HZ */, &u32SystemResolution))
|| RT_SUCCESS(RTTimerRequestSystemGranularity( 500000 /* 2000 HZ */, &u32SystemResolution))
|| RT_SUCCESS(RTTimerRequestSystemGranularity( 976563 /* 1024 HZ */, &u32SystemResolution))
|| RT_SUCCESS(RTTimerRequestSystemGranularity( 1000000 /* 1000 HZ */, &u32SystemResolution))
|| RT_SUCCESS(RTTimerRequestSystemGranularity( 1953125 /* 512 HZ */, &u32SystemResolution))
|| RT_SUCCESS(RTTimerRequestSystemGranularity( 2000000 /* 500 HZ */, &u32SystemResolution))
|| RT_SUCCESS(RTTimerRequestSystemGranularity( 3906250 /* 256 HZ */, &u32SystemResolution))
|| RT_SUCCESS(RTTimerRequestSystemGranularity( 4000000 /* 250 HZ */, &u32SystemResolution))
|| RT_SUCCESS(RTTimerRequestSystemGranularity( 7812500 /* 128 HZ */, &u32SystemResolution))
|| RT_SUCCESS(RTTimerRequestSystemGranularity(10000000 /* 100 HZ */, &u32SystemResolution))
|| RT_SUCCESS(RTTimerRequestSystemGranularity(15625000 /* 64 HZ */, &u32SystemResolution))
|| RT_SUCCESS(RTTimerRequestSystemGranularity(31250000 /* 32 HZ */, &u32SystemResolution))
)
{
Assert(RTTimerGetSystemGranularity() <= u32SystemResolution);
pDevExt->u32SystemTimerGranularityGrant = u32SystemResolution;
}
#endif
/*
* Find a reasonable update interval and initialize the structure.
*/
u32Interval = u32SystemResolution = RTTimerGetSystemGranularity();
while (u32Interval < 10000000 /* 10 ms */)
u32Interval += u32SystemResolution;
supdrvGipInit(pDevExt, pGip, HCPhysGip, RTTimeSystemNanoTS(), 1000000000 / u32Interval /*=Hz*/);
/*
* Create the timer.
* If CPU_ALL isn't supported we'll have to fall back to synchronous mode.
*/
if (pGip->u32Mode == SUPGIPMODE_ASYNC_TSC)
{
rc = RTTimerCreateEx(&pDevExt->pGipTimer, u32Interval, RTTIMER_FLAGS_CPU_ALL, supdrvGipAsyncTimer, pDevExt);
if (rc == VERR_NOT_SUPPORTED)
{
OSDBGPRINT(("supdrvGipCreate: omni timer not supported, falling back to synchronous mode\n"));
pGip->u32Mode = SUPGIPMODE_SYNC_TSC;
}
}
if (pGip->u32Mode != SUPGIPMODE_ASYNC_TSC)
rc = RTTimerCreateEx(&pDevExt->pGipTimer, u32Interval, 0, supdrvGipSyncTimer, pDevExt);
if (RT_SUCCESS(rc))
{
if (pGip->u32Mode == SUPGIPMODE_ASYNC_TSC)
rc = RTMpNotificationRegister(supdrvGipMpEvent, pDevExt);
if (RT_SUCCESS(rc))
{
/*
* We're good.
*/
dprintf(("supdrvGipCreate: %ld ns interval.\n", (long)u32Interval));
return VINF_SUCCESS;
}
OSDBGPRINT(("supdrvGipCreate: failed register MP event notfication. rc=%d\n", rc));
}
else
{
OSDBGPRINT(("supdrvGipCreate: failed create GIP timer at %ld ns interval. rc=%d\n", (long)u32Interval, rc));
Assert(!pDevExt->pGipTimer);
}
supdrvGipDestroy(pDevExt);
return rc;
}
/**
* Terminates the GIP.
*
* @param pDevExt Instance data. GIP stuff may be updated.
*/
static void supdrvGipDestroy(PSUPDRVDEVEXT pDevExt)
{
int rc;
#ifdef DEBUG_DARWIN_GIP
OSDBGPRINT(("supdrvGipDestroy: pDevExt=%p pGip=%p pGipTimer=%p GipMemObj=%p\n", pDevExt,
pDevExt->GipMemObj != NIL_RTR0MEMOBJ ? RTR0MemObjAddress(pDevExt->GipMemObj) : NULL,
pDevExt->pGipTimer, pDevExt->GipMemObj));
#endif
/*
* Invalid the GIP data.
*/
if (pDevExt->pGip)
{
supdrvGipTerm(pDevExt->pGip);
pDevExt->pGip = NULL;
}
/*
* Destroy the timer and free the GIP memory object.
*/
if (pDevExt->pGipTimer)
{
rc = RTTimerDestroy(pDevExt->pGipTimer); AssertRC(rc);
pDevExt->pGipTimer = NULL;
}
if (pDevExt->GipMemObj != NIL_RTR0MEMOBJ)
{
rc = RTR0MemObjFree(pDevExt->GipMemObj, true /* free mappings */); AssertRC(rc);
pDevExt->GipMemObj = NIL_RTR0MEMOBJ;
}
/*
* Finally, release the system timer resolution request if one succeeded.
*/
if (pDevExt->u32SystemTimerGranularityGrant)
{
rc = RTTimerReleaseSystemGranularity(pDevExt->u32SystemTimerGranularityGrant); AssertRC(rc);
pDevExt->u32SystemTimerGranularityGrant = 0;
}
}
/**
* Timer callback function sync GIP mode.
* @param pTimer The timer.
* @param pvUser The device extension.
*/
static DECLCALLBACK(void) supdrvGipSyncTimer(PRTTIMER pTimer, void *pvUser, uint64_t iTick)
{
RTCCUINTREG fOldFlags = ASMIntDisableFlags(); /* No interruptions please (real problem on S10). */
PSUPDRVDEVEXT pDevExt = (PSUPDRVDEVEXT)pvUser;
supdrvGipUpdate(pDevExt->pGip, RTTimeSystemNanoTS());
ASMSetFlags(fOldFlags);
}
/**
* Timer callback function for async GIP mode.
* @param pTimer The timer.
* @param pvUser The device extension.
*/
static DECLCALLBACK(void) supdrvGipAsyncTimer(PRTTIMER pTimer, void *pvUser, uint64_t iTick)
{
RTCCUINTREG fOldFlags = ASMIntDisableFlags(); /* No interruptions please (real problem on S10). */
PSUPDRVDEVEXT pDevExt = (PSUPDRVDEVEXT)pvUser;
RTCPUID idCpu = RTMpCpuId();
uint64_t NanoTS = RTTimeSystemNanoTS();
/** @todo reset the transaction number and whatnot when iTick == 1. */
if (pDevExt->idGipMaster == idCpu)
supdrvGipUpdate(pDevExt->pGip, NanoTS);
else
supdrvGipUpdatePerCpu(pDevExt->pGip, NanoTS, ASMGetApicId());
ASMSetFlags(fOldFlags);
}
/**
* Multiprocessor event notification callback.
*
* This is used to make sue that the GIP master gets passed on to
* another CPU.
*
* @param enmEvent The event.
* @param idCpu The cpu it applies to.
* @param pvUser Pointer to the device extension.
*/
static DECLCALLBACK(void) supdrvGipMpEvent(RTMPEVENT enmEvent, RTCPUID idCpu, void *pvUser)
{
PSUPDRVDEVEXT pDevExt = (PSUPDRVDEVEXT)pvUser;
if (enmEvent == RTMPEVENT_OFFLINE)
{
RTCPUID idGipMaster;
ASMAtomicReadSize(&pDevExt->idGipMaster, &idGipMaster);
if (idGipMaster == idCpu)
{
/*
* Find a new GIP master.
*/
bool fIgnored;
unsigned i;
RTCPUID idNewGipMaster = NIL_RTCPUID;
RTCPUSET OnlineCpus;
RTMpGetOnlineSet(&OnlineCpus);
for (i = 0; i < RTCPUSET_MAX_CPUS; i++)
{
RTCPUID idCurCpu = RTMpCpuIdFromSetIndex(i);
if ( RTCpuSetIsMember(&OnlineCpus, idCurCpu)
&& idCurCpu != idGipMaster)
{
idNewGipMaster = idCurCpu;
break;
}
}
dprintf(("supdrvGipMpEvent: Gip master %#lx -> %#lx\n", (long)idGipMaster, (long)idNewGipMaster));
ASMAtomicCmpXchgSize(&pDevExt->idGipMaster, idNewGipMaster, idGipMaster, fIgnored);
NOREF(fIgnored);
}
}
}
/**
* Initializes the GIP data.
*
* @returns IPRT status code.
* @param pDevExt Pointer to the device instance data.
* @param pGip Pointer to the read-write kernel mapping of the GIP.
* @param HCPhys The physical address of the GIP.
* @param u64NanoTS The current nanosecond timestamp.
* @param uUpdateHz The update freqence.
*/
int VBOXCALL supdrvGipInit(PSUPDRVDEVEXT pDevExt, PSUPGLOBALINFOPAGE pGip, RTHCPHYS HCPhys, uint64_t u64NanoTS, unsigned uUpdateHz)
{
unsigned i;
#ifdef DEBUG_DARWIN_GIP
OSDBGPRINT(("supdrvGipInit: pGip=%p HCPhys=%lx u64NanoTS=%llu uUpdateHz=%d\n", pGip, (long)HCPhys, u64NanoTS, uUpdateHz));
#else
LogFlow(("supdrvGipInit: pGip=%p HCPhys=%lx u64NanoTS=%llu uUpdateHz=%d\n", pGip, (long)HCPhys, u64NanoTS, uUpdateHz));
#endif
/*
* Initialize the structure.
*/
memset(pGip, 0, PAGE_SIZE);
pGip->u32Magic = SUPGLOBALINFOPAGE_MAGIC;
pGip->u32Version = SUPGLOBALINFOPAGE_VERSION;
pGip->u32Mode = supdrvGipDeterminTscMode(pDevExt);
pGip->u32UpdateHz = uUpdateHz;
pGip->u32UpdateIntervalNS = 1000000000 / uUpdateHz;
pGip->u64NanoTSLastUpdateHz = u64NanoTS;
for (i = 0; i < RT_ELEMENTS(pGip->aCPUs); i++)
{
pGip->aCPUs[i].u32TransactionId = 2;
pGip->aCPUs[i].u64NanoTS = u64NanoTS;
pGip->aCPUs[i].u64TSC = ASMReadTSC();
/*
* We don't know the following values until we've executed updates.
* So, we'll just insert very high values.
*/
pGip->aCPUs[i].u64CpuHz = _4G + 1;
pGip->aCPUs[i].u32UpdateIntervalTSC = _2G / 4;
pGip->aCPUs[i].au32TSCHistory[0] = _2G / 4;
pGip->aCPUs[i].au32TSCHistory[1] = _2G / 4;
pGip->aCPUs[i].au32TSCHistory[2] = _2G / 4;
pGip->aCPUs[i].au32TSCHistory[3] = _2G / 4;
pGip->aCPUs[i].au32TSCHistory[4] = _2G / 4;
pGip->aCPUs[i].au32TSCHistory[5] = _2G / 4;
pGip->aCPUs[i].au32TSCHistory[6] = _2G / 4;
pGip->aCPUs[i].au32TSCHistory[7] = _2G / 4;
}
/*
* Link it to the device extension.
*/
pDevExt->pGip = pGip;
pDevExt->HCPhysGip = HCPhys;
pDevExt->cGipUsers = 0;
return VINF_SUCCESS;
}
/**
* Callback used by supdrvDetermineAsyncTSC to read the TSC on a CPU.
*
* @param idCpu Ignored.
* @param pvUser1 Where to put the TSC.
* @param pvUser2 Ignored.
*/
static DECLCALLBACK(void) supdrvDetermineAsyncTscWorker(RTCPUID idCpu, void *pvUser1, void *pvUser2)
{
#if 1
ASMAtomicWriteU64((uint64_t volatile *)pvUser1, ASMReadTSC());
#else
*(uint64_t *)pvUser1 = ASMReadTSC();
#endif
}
/**
* Determine if Async GIP mode is required because of TSC drift.
*
* When using the default/normal timer code it is essential that the time stamp counter
* (TSC) runs never backwards, that is, a read operation to the counter should return
* a bigger value than any previous read operation. This is guaranteed by the latest
* AMD CPUs and by newer Intel CPUs which never enter the C2 state (P4). In any other
* case we have to choose the asynchronous timer mode.
*
* @param poffMin Pointer to the determined difference between different cores.
* @return false if the time stamp counters appear to be synchron, true otherwise.
*/
bool VBOXCALL supdrvDetermineAsyncTsc(uint64_t *poffMin)
{
/*
* Just iterate all the cpus 8 times and make sure that the TSC is
* ever increasing. We don't bother taking TSC rollover into account.
*/
RTCPUSET CpuSet;
int iLastCpu = RTCpuLastIndex(RTMpGetSet(&CpuSet));
int iCpu;
int cLoops = 8;
bool fAsync = false;
int rc = VINF_SUCCESS;
uint64_t offMax = 0;
uint64_t offMin = ~(uint64_t)0;
uint64_t PrevTsc = ASMReadTSC();
while (cLoops-- > 0)
{
for (iCpu = 0; iCpu <= iLastCpu; iCpu++)
{
uint64_t CurTsc;
rc = RTMpOnSpecific(RTMpCpuIdFromSetIndex(iCpu), supdrvDetermineAsyncTscWorker, &CurTsc, NULL);
if (RT_SUCCESS(rc))
{
if (CurTsc <= PrevTsc)
{
fAsync = true;
offMin = offMax = PrevTsc - CurTsc;
dprintf(("supdrvDetermineAsyncTsc: iCpu=%d cLoops=%d CurTsc=%llx PrevTsc=%llx\n",
iCpu, cLoops, CurTsc, PrevTsc));
break;
}
/* Gather statistics (except the first time). */
if (iCpu != 0 || cLoops != 7)
{
uint64_t off = CurTsc - PrevTsc;
if (off < offMin)
offMin = off;
if (off > offMax)
offMax = off;
dprintf2(("%d/%d: off=%llx\n", cLoops, iCpu, off));
}
/* Next */
PrevTsc = CurTsc;
}
else if (rc == VERR_NOT_SUPPORTED)
break;
else
AssertMsg(rc == VERR_CPU_NOT_FOUND || rc == VERR_CPU_OFFLINE, ("%d\n", rc));
}
/* broke out of the loop. */
if (iCpu <= iLastCpu)
break;
}
*poffMin = offMin; /* Almost RTMpOnSpecific profiling. */
dprintf(("supdrvDetermineAsyncTsc: returns %d; iLastCpu=%d rc=%d offMin=%llx offMax=%llx\n",
fAsync, iLastCpu, rc, offMin, offMax));
#if !defined(RT_OS_SOLARIS) && !defined(RT_OS_OS2) && !defined(RT_OS_WINDOWS)
OSDBGPRINT(("vboxdrv: fAsync=%d offMin=%#lx offMax=%#lx\n", fAsync, (long)offMin, (long)offMax));
#endif
return fAsync;
}
/**
* Determin the GIP TSC mode.
*
* @returns The most suitable TSC mode.
* @param pDevExt Pointer to the device instance data.
*/
static SUPGIPMODE supdrvGipDeterminTscMode(PSUPDRVDEVEXT pDevExt)
{
/*
* On SMP we're faced with two problems:
* (1) There might be a skew between the CPU, so that cpu0
* returns a TSC that is sligtly different from cpu1.
* (2) Power management (and other things) may cause the TSC
* to run at a non-constant speed, and cause the speed
* to be different on the cpus. This will result in (1).
*
* So, on SMP systems we'll have to select the ASYNC update method
* if there are symphoms of these problems.
*/
if (RTMpGetCount() > 1)
{
uint32_t uEAX, uEBX, uECX, uEDX;
uint64_t u64DiffCoresIgnored;
/* Permit the user and/or the OS specfic bits to force async mode. */
if (supdrvOSGetForcedAsyncTscMode(pDevExt))
return SUPGIPMODE_ASYNC_TSC;
/* Try check for current differences between the cpus. */
if (supdrvDetermineAsyncTsc(&u64DiffCoresIgnored))
return SUPGIPMODE_ASYNC_TSC;
/*
* If the CPU supports power management and is an AMD one we
* won't trust it unless it has the TscInvariant bit is set.
*/
/* Check for "AuthenticAMD" */
ASMCpuId(0, &uEAX, &uEBX, &uECX, &uEDX);
if ( uEAX >= 1
&& uEBX == X86_CPUID_VENDOR_AMD_EBX
&& uECX == X86_CPUID_VENDOR_AMD_ECX
&& uEDX == X86_CPUID_VENDOR_AMD_EDX)
{
/* Check for APM support and that TscInvariant is cleared. */
ASMCpuId(0x80000000, &uEAX, &uEBX, &uECX, &uEDX);
if (uEAX >= 0x80000007)
{
ASMCpuId(0x80000007, &uEAX, &uEBX, &uECX, &uEDX);
if ( !(uEDX & RT_BIT(8))/* TscInvariant */
&& (uEDX & 0x3e)) /* STC|TM|THERMTRIP|VID|FID. Ignore TS. */
return SUPGIPMODE_ASYNC_TSC;
}
}
}
return SUPGIPMODE_SYNC_TSC;
}
/**
* Invalidates the GIP data upon termination.
*
* @param pGip Pointer to the read-write kernel mapping of the GIP.
*/
void VBOXCALL supdrvGipTerm(PSUPGLOBALINFOPAGE pGip)
{
unsigned i;
pGip->u32Magic = 0;
for (i = 0; i < RT_ELEMENTS(pGip->aCPUs); i++)
{
pGip->aCPUs[i].u64NanoTS = 0;
pGip->aCPUs[i].u64TSC = 0;
pGip->aCPUs[i].iTSCHistoryHead = 0;
}
}
/**
* Worker routine for supdrvGipUpdate and supdrvGipUpdatePerCpu that
* updates all the per cpu data except the transaction id.
*
* @param pGip The GIP.
* @param pGipCpu Pointer to the per cpu data.
* @param u64NanoTS The current time stamp.
*/
static void supdrvGipDoUpdateCpu(PSUPGLOBALINFOPAGE pGip, PSUPGIPCPU pGipCpu, uint64_t u64NanoTS)
{
uint64_t u64TSC;
uint64_t u64TSCDelta;
uint32_t u32UpdateIntervalTSC;
uint32_t u32UpdateIntervalTSCSlack;
unsigned iTSCHistoryHead;
uint64_t u64CpuHz;
/*
* Update the NanoTS.
*/
ASMAtomicXchgU64(&pGipCpu->u64NanoTS, u64NanoTS);
/*
* Calc TSC delta.
*/
/** @todo validate the NanoTS delta, don't trust the OS to call us when it should... */
u64TSC = ASMReadTSC();
u64TSCDelta = u64TSC - pGipCpu->u64TSC;
ASMAtomicXchgU64(&pGipCpu->u64TSC, u64TSC);
if (u64TSCDelta >> 32)
{
u64TSCDelta = pGipCpu->u32UpdateIntervalTSC;
pGipCpu->cErrors++;
}
/*
* TSC History.
*/
Assert(RT_ELEMENTS(pGipCpu->au32TSCHistory) == 8);
iTSCHistoryHead = (pGipCpu->iTSCHistoryHead + 1) & 7;
ASMAtomicXchgU32(&pGipCpu->iTSCHistoryHead, iTSCHistoryHead);
ASMAtomicXchgU32(&pGipCpu->au32TSCHistory[iTSCHistoryHead], (uint32_t)u64TSCDelta);
/*
* UpdateIntervalTSC = average of last 8,2,1 intervals depending on update HZ.
*/
if (pGip->u32UpdateHz >= 1000)
{
uint32_t u32;
u32 = pGipCpu->au32TSCHistory[0];
u32 += pGipCpu->au32TSCHistory[1];
u32 += pGipCpu->au32TSCHistory[2];
u32 += pGipCpu->au32TSCHistory[3];
u32 >>= 2;
u32UpdateIntervalTSC = pGipCpu->au32TSCHistory[4];
u32UpdateIntervalTSC += pGipCpu->au32TSCHistory[5];
u32UpdateIntervalTSC += pGipCpu->au32TSCHistory[6];
u32UpdateIntervalTSC += pGipCpu->au32TSCHistory[7];
u32UpdateIntervalTSC >>= 2;
u32UpdateIntervalTSC += u32;
u32UpdateIntervalTSC >>= 1;
/* Value choosen for a 2GHz Athlon64 running linux 2.6.10/11, . */
u32UpdateIntervalTSCSlack = u32UpdateIntervalTSC >> 14;
}
else if (pGip->u32UpdateHz >= 90)
{
u32UpdateIntervalTSC = (uint32_t)u64TSCDelta;
u32UpdateIntervalTSC += pGipCpu->au32TSCHistory[(iTSCHistoryHead - 1) & 7];
u32UpdateIntervalTSC >>= 1;
/* value choosen on a 2GHz thinkpad running windows */
u32UpdateIntervalTSCSlack = u32UpdateIntervalTSC >> 7;
}
else
{
u32UpdateIntervalTSC = (uint32_t)u64TSCDelta;
/* This value hasn't be checked yet.. waiting for OS/2 and 33Hz timers.. :-) */
u32UpdateIntervalTSCSlack = u32UpdateIntervalTSC >> 6;
}
ASMAtomicXchgU32(&pGipCpu->u32UpdateIntervalTSC, u32UpdateIntervalTSC + u32UpdateIntervalTSCSlack);
/*
* CpuHz.
*/
u64CpuHz = ASMMult2xU32RetU64(u32UpdateIntervalTSC, pGip->u32UpdateHz);
ASMAtomicXchgU64(&pGipCpu->u64CpuHz, u64CpuHz);
}
/**
* Updates the GIP.
*
* @param pGip Pointer to the GIP.
* @param u64NanoTS The current nanosecond timesamp.
*/
void VBOXCALL supdrvGipUpdate(PSUPGLOBALINFOPAGE pGip, uint64_t u64NanoTS)
{
/*
* Determin the relevant CPU data.
*/
PSUPGIPCPU pGipCpu;
if (pGip->u32Mode != SUPGIPMODE_ASYNC_TSC)
pGipCpu = &pGip->aCPUs[0];
else
{
unsigned iCpu = ASMGetApicId();
if (RT_LIKELY(iCpu >= RT_ELEMENTS(pGip->aCPUs)))
return;
pGipCpu = &pGip->aCPUs[iCpu];
}
/*
* Start update transaction.
*/
if (!(ASMAtomicIncU32(&pGipCpu->u32TransactionId) & 1))
{
/* this can happen on win32 if we're taking to long and there are more CPUs around. shouldn't happen though. */
AssertMsgFailed(("Invalid transaction id, %#x, not odd!\n", pGipCpu->u32TransactionId));
ASMAtomicIncU32(&pGipCpu->u32TransactionId);
pGipCpu->cErrors++;
return;
}
/*
* Recalc the update frequency every 0x800th time.
*/
if (!(pGipCpu->u32TransactionId & (GIP_UPDATEHZ_RECALC_FREQ * 2 - 2)))
{
if (pGip->u64NanoTSLastUpdateHz)
{
#ifdef RT_ARCH_AMD64 /** @todo fix 64-bit div here to work on x86 linux. */
uint64_t u64Delta = u64NanoTS - pGip->u64NanoTSLastUpdateHz;
uint32_t u32UpdateHz = (uint32_t)((UINT64_C(1000000000) * GIP_UPDATEHZ_RECALC_FREQ) / u64Delta);
if (u32UpdateHz <= 2000 && u32UpdateHz >= 30)
{
ASMAtomicXchgU32(&pGip->u32UpdateHz, u32UpdateHz);
ASMAtomicXchgU32(&pGip->u32UpdateIntervalNS, 1000000000 / u32UpdateHz);
}
#endif
}
ASMAtomicXchgU64(&pGip->u64NanoTSLastUpdateHz, u64NanoTS);
}
/*
* Update the data.
*/
supdrvGipDoUpdateCpu(pGip, pGipCpu, u64NanoTS);
/*
* Complete transaction.
*/
ASMAtomicIncU32(&pGipCpu->u32TransactionId);
}
/**
* Updates the per cpu GIP data for the calling cpu.
*
* @param pGip Pointer to the GIP.
* @param u64NanoTS The current nanosecond timesamp.
* @param iCpu The CPU index.
*/
void VBOXCALL supdrvGipUpdatePerCpu(PSUPGLOBALINFOPAGE pGip, uint64_t u64NanoTS, unsigned iCpu)
{
PSUPGIPCPU pGipCpu;
if (RT_LIKELY(iCpu < RT_ELEMENTS(pGip->aCPUs)))
{
pGipCpu = &pGip->aCPUs[iCpu];
/*
* Start update transaction.
*/
if (!(ASMAtomicIncU32(&pGipCpu->u32TransactionId) & 1))
{
AssertMsgFailed(("Invalid transaction id, %#x, not odd!\n", pGipCpu->u32TransactionId));
ASMAtomicIncU32(&pGipCpu->u32TransactionId);
pGipCpu->cErrors++;
return;
}
/*
* Update the data.
*/
supdrvGipDoUpdateCpu(pGip, pGipCpu, u64NanoTS);
/*
* Complete transaction.
*/
ASMAtomicIncU32(&pGipCpu->u32TransactionId);
}
}