HWVMXR0.h revision c98fb3e16fcd571a790eab772c0c66173d225205
/* $Id$ */
/** @file
* HWACCM SVM - Internal header file.
*/
/*
* Copyright (C) 2006-2007 innotek GmbH
*
* This file is part of VirtualBox Open Source Edition (OSE), as
* available from http://www.virtualbox.org. This file is free software;
* you can redistribute it and/or modify it under the terms of the GNU
* General Public License as published by the Free Software Foundation,
* in version 2 as it comes in the "COPYING" file of the VirtualBox OSE
* distribution. VirtualBox OSE is distributed in the hope that it will
* be useful, but WITHOUT ANY WARRANTY of any kind.
*/
#ifndef ___HWVMXR0_h
#define ___HWVMXR0_h
#include <VBox/cdefs.h>
#include <VBox/types.h>
#include <VBox/em.h>
#include <VBox/stam.h>
#include <VBox/dis.h>
#include <VBox/hwaccm.h>
#include <VBox/pgm.h>
#include <VBox/hwacc_vmx.h>
__BEGIN_DECLS
/** @defgroup grp_vmx Internal
* @ingroup grp_vmx
* @internal
* @{
*/
#ifdef IN_RING0
/**
* Enable VMX
*
* @returns VBox status code.
* @param pVM The VM to operate on.
*/
HWACCMR0DECL(int) VMXR0Enable(PVM pVM);
/**
* Disable VMX
*
* @returns VBox status code.
* @param pVM The VM to operate on.
*/
HWACCMR0DECL(int) VMXR0Disable(PVM pVM);
/**
* Sets up and activates VMX
*
* @returns VBox status code.
* @param pVM The VM to operate on.
*/
HWACCMR0DECL(int) VMXR0Setup(PVM pVM);
/**
* Save the host state
*
* @returns VBox status code.
* @param pVM The VM to operate on.
*/
HWACCMR0DECL(int) VMXR0SaveHostState(PVM pVM);
/**
* Loads the guest state
*
* @returns VBox status code.
* @param pVM The VM to operate on.
* @param pCtx Guest context
*/
HWACCMR0DECL(int) VMXR0LoadGuestState(PVM pVM, CPUMCTX *pCtx);
/**
* Runs guest code in a VMX VM.
*
* @note NEVER EVER turn on interrupts here. Due to our illegal entry into the kernel, it might mess things up. (XP kernel traps have been frequently observed)
*
* @returns VBox status code.
* @param pVM The VM to operate on.
* @param pCtx Guest context
*/
HWACCMR0DECL(int) VMXR0RunGuestCode(PVM pVM, CPUMCTX *pCtx);
#define VMX_WRITE_SELREG(REG, reg) \
rc = VMXWriteVMCS(VMX_VMCS_GUEST_FIELD_##REG, pCtx->reg); \
rc |= VMXWriteVMCS(VMX_VMCS_GUEST_##REG##_LIMIT, pCtx->reg##Hid.u32Limit); \
rc |= VMXWriteVMCS(VMX_VMCS_GUEST_##REG##_BASE, pCtx->reg##Hid.u32Base); \
if (pCtx->eflags.u32 & X86_EFL_VM) \
val = pCtx->reg##Hid.Attr.u; \
else \
if (pCtx->reg && pCtx->reg##Hid.Attr.n.u1Present == 1) \
val = pCtx->reg##Hid.Attr.u | X86_SEL_TYPE_ACCESSED; \
else \
val = 0x10000; /* Invalid guest state error otherwise. (BIT(16) = Unusable) */ \
\
rc |= VMXWriteVMCS(VMX_VMCS_GUEST_##REG##_ACCESS_RIGHTS, val);
#define VMX_READ_SELREG(REG, reg) \
VMXReadVMCS(VMX_VMCS_GUEST_FIELD_##REG, &val); \
pCtx->reg = val; \
VMXReadVMCS(VMX_VMCS_GUEST_##REG##_LIMIT, &val); \
pCtx->reg##Hid.u32Limit = val; \
VMXReadVMCS(VMX_VMCS_GUEST_##REG##_BASE, &val); \
pCtx->reg##Hid.u32Base = val; \
VMXReadVMCS(VMX_VMCS_GUEST_##REG##_ACCESS_RIGHTS, &val); \
pCtx->reg##Hid.Attr.u = val;
#endif /* IN_RING0 */
/** @} */
__END_DECLS
#endif