HWSVMR0.h revision cbeafe5b35cc2bf5ab239f08d3a7b53b31ef191d
/* $Id$ */
/** @file
* HWACCM AMD-V - 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 (GPL) 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 ___HWSVMR0_h
#define ___HWSVMR0_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_svm.h>
__BEGIN_DECLS
/** @defgroup grp_svm Internal
* @ingroup grp_svm
* @internal
* @{
*/
#ifdef IN_RING0
/**
* Enters the AMD-V session
*
* @returns VBox status code.
* @param pVM The VM to operate on.
*/
HWACCMR0DECL(int) SVMR0Enter(PVM pVM);
/**
* Leaves the AMD-V session
*
* @returns VBox status code.
* @param pVM The VM to operate on.
*/
HWACCMR0DECL(int) SVMR0Leave(PVM pVM);
/**
* Sets up and activates AMD-V on the current CPU
*
* @returns VBox status code.
* @param idCpu The identifier for the CPU the function is called on.
* @param pVM The VM to operate on.
* @param pvPageCpu Pointer to the global cpu page
* @param pPageCpuPhys Physical address of the global cpu page
*/
HWACCMR0DECL(int) SVMR0EnableCpu(RTCPUID idCpu, PVM pVM, void *pvPageCpu, RTHCPHYS pPageCpuPhys);
/**
* Deactivates AMD-V on the current CPU
*
* @returns VBox status code.
* @param idCpu The identifier for the CPU the function is called on.
* @param pvPageCpu Pointer to the global cpu page
* @param pPageCpuPhys Physical address of the global cpu page
*/
HWACCMR0DECL(int) SVMR0DisableCpu(RTCPUID idCpu, void *pvPageCpu, RTHCPHYS pPageCpuPhys);
/**
* Sets up AMD-V for the specified VM
*
* @returns VBox status code.
* @param pVM The VM to operate on.
*/
HWACCMR0DECL(int) SVMR0SetupVM(PVM pVM);
/**
* Runs guest code in an AMD-V 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) SVMR0RunGuestCode(PVM pVM, CPUMCTX *pCtx);
/**
* Loads the guest state
*
* @returns VBox status code.
* @param pVM The VM to operate on.
* @param pCtx Guest context
*/
HWACCMR0DECL(int) SVMR0LoadGuestState(PVM pVM, CPUMCTX *pCtx);
/* Convert hidden selector attribute word between VMX and SVM formats. */
#define SVM_HIDSEGATTR_VMX2SVM(a) (a & 0xFF) | ((a & 0xF000) >> 4)
#define SVM_HIDSEGATTR_SVM2VMX(a) (a & 0xFF) | ((a & 0x0F00) << 4)
#define SVM_WRITE_SELREG(REG, reg) \
pVMCB->guest.REG.u16Sel = pCtx->reg; \
pVMCB->guest.REG.u32Limit = pCtx->reg##Hid.u32Limit; \
pVMCB->guest.REG.u64Base = pCtx->reg##Hid.u32Base; \
pVMCB->guest.REG.u16Attr = SVM_HIDSEGATTR_VMX2SVM(pCtx->reg##Hid.Attr.u);
#define SVM_READ_SELREG(REG, reg) \
pCtx->reg = pVMCB->guest.REG.u16Sel; \
pCtx->reg##Hid.u32Limit = pVMCB->guest.REG.u32Limit; \
pCtx->reg##Hid.u32Base = pVMCB->guest.REG.u64Base; \
pCtx->reg##Hid.Attr.u = SVM_HIDSEGATTR_SVM2VMX(pVMCB->guest.REG.u16Attr);
#endif /* IN_RING0 */
/** @} */
__END_DECLS
#endif