HWVMXR0.h revision 5c0c16a890a7447da4713a5e3eac208cbff325fe
/* $Id$ */
/** @file
* HWACCM VT-x - Internal header file.
*/
/*
* Copyright (C) 2006-2007 Sun Microsystems, Inc.
*
* 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.
*
* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
* Clara, CA 95054 USA or visit http://www.sun.com if you need
* additional information or have any questions.
*/
#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_int Internal
* @ingroup grp_vmx
* @internal
* @{
*/
#ifdef IN_RING0
/**
* Enters the VT-x session
*
* @returns VBox status code.
* @param pVM The VM to operate on.
* @param idVCpu VPCPU id.
* @param pCpu CPU info struct
*/
VMMR0DECL(int) VMXR0Enter(PVM pVM, RTCPUID idVCpu, PHWACCM_CPUINFO pCpu);
/**
* Leaves the VT-x session
*
* @returns VBox status code.
* @param pVM The VM to operate on.
* @param idVCpu VPCPU id.
* @param pCtx CPU context
*/
VMMR0DECL(int) VMXR0Leave(PVM pVM, RTCPUID idVCpu, PCPUMCTX pCtx);
/**
* Sets up and activates VT-x on the current CPU
*
* @returns VBox status code.
* @param pCpu CPU info struct
* @param pVM The VM to operate on. (can be NULL after a resume)
* @param pvPageCpu Pointer to the global cpu page
* @param pPageCpuPhys Physical address of the global cpu page
*/
VMMR0DECL(int) VMXR0EnableCpu(PHWACCM_CPUINFO pCpu, PVM pVM, void *pvPageCpu, RTHCPHYS pPageCpuPhys);
/**
* Deactivates VT-x on the current CPU
*
* @returns VBox status code.
* @param pCpu CPU info struct
* @param pvPageCpu Pointer to the global cpu page
* @param pPageCpuPhys Physical address of the global cpu page
*/
VMMR0DECL(int) VMXR0DisableCpu(PHWACCM_CPUINFO pCpu, void *pvPageCpu, RTHCPHYS pPageCpuPhys);
/**
* Does Ring-0 per VM VT-x init.
*
* @returns VBox status code.
* @param pVM The VM to operate on.
*/
VMMR0DECL(int) VMXR0InitVM(PVM pVM);
/**
* Does Ring-0 per VM VT-x termination.
*
* @returns VBox status code.
* @param pVM The VM to operate on.
*/
VMMR0DECL(int) VMXR0TermVM(PVM pVM);
/**
* Sets up VT-x for the specified VM
*
* @returns VBox status code.
* @param pVM The VM to operate on.
*/
VMMR0DECL(int) VMXR0SetupVM(PVM pVM);
/**
* Save the host state
*
* @returns VBox status code.
* @param pVM The VM to operate on.
* @param idVCpu VPCPU id.
*/
VMMR0DECL(int) VMXR0SaveHostState(PVM pVM, RTCPUID idVCpu);
/**
* Loads the guest state
*
* @returns VBox status code.
* @param pVM The VM to operate on.
* @param idVCpu VPCPU id.
* @param pCtx Guest context
*/
VMMR0DECL(int) VMXR0LoadGuestState(PVM pVM, RTCPUID idVCpu, PCPUMCTX pCtx);
/**
* Runs guest code in a VT-x VM.
*
* @returns VBox status code.
* @param pVM The VM to operate on.
* @param idVCpu VPCPU id.
* @param pCtx Guest context
*/
VMMR0DECL(int) VMXR0RunGuestCode(PVM pVM, RTCPUID idVCpu, PCPUMCTX 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.u64Base); \
if ((pCtx->eflags.u32 & X86_EFL_VM)) \
val = pCtx->reg##Hid.Attr.u; \
else \
if (CPUMIsGuestInRealModeEx(pCtx)) \
{ \
/* Must override this or else VT-x will fail with invalid guest state errors. */ \
/* DPL=3, present, code/data, r/w/accessed. */ \
val = 0xf3; \
} \
else \
if ( ((!pCtx->csHid.Attr.n.u1DefBig && !CPUMIsGuestIn64BitCodeEx(pCtx)) || 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.u64Base = val; \
VMXReadVMCS(VMX_VMCS_GUEST_##REG##_ACCESS_RIGHTS, &val); \
pCtx->reg##Hid.Attr.u = val; \
}
#define VMX_LOG_SELREG(REG, szSelReg) \
{ \
VMXReadVMCS(VMX_VMCS_GUEST_FIELD_##REG, &val); \
Log(("%s Selector %x\n", szSelReg, val)); \
VMXReadVMCS(VMX_VMCS_GUEST_##REG##_LIMIT, &val); \
Log(("%s Limit %x\n", szSelReg, val)); \
VMXReadVMCS(VMX_VMCS_GUEST_##REG##_BASE, &val); \
Log(("%s Base %RX64\n", szSelReg, val)); \
VMXReadVMCS(VMX_VMCS_GUEST_##REG##_ACCESS_RIGHTS, &val); \
Log(("%s Attributes %x\n", szSelReg, val)); \
}
/**
* Prepares for and executes VMLAUNCH (32 bits guest mode)
*
* @returns VBox status code
* @param fResume vmlauch/vmresume
* @param pCtx Guest context
*/
DECLASM(int) VMXR0StartVM32(RTHCUINT fResume, PCPUMCTX pCtx);
/**
* Prepares for and executes VMLAUNCH (64 bits guest mode)
*
* @returns VBox status code
* @param fResume vmlauch/vmresume
* @param pCtx Guest context
*/
DECLASM(int) VMXR0StartVM64(RTHCUINT fResume, PCPUMCTX pCtx);
#endif /* IN_RING0 */
/** @} */
__END_DECLS
#endif