HWVMXR0.h revision 962a914fb7f1d645575fa67df18aaf324c317ab4
/* $Id$ */
/** @file
* HWACCM VT-x - Internal header file.
*/
/*
* Copyright (C) 2006-2007 Oracle Corporation
*
* 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 ___HWVMXR0_h
#define ___HWVMXR0_h
#include <VBox/cdefs.h>
#include <VBox/types.h>
#include <VBox/vmm/em.h>
#include <VBox/vmm/stam.h>
#include <VBox/dis.h>
#include <VBox/vmm/hwaccm.h>
#include <VBox/vmm/pgm.h>
#include <VBox/vmm/hwacc_vmx.h>
RT_C_DECLS_BEGIN
/** @defgroup grp_vmx_int Internal
* @ingroup grp_vmx
* @internal
* @{
*/
/* Read cache indices. */
#define VMX_VMCS64_GUEST_RIP_CACHE_IDX 0
#define VMX_VMCS64_GUEST_RSP_CACHE_IDX 1
#define VMX_VMCS_GUEST_RFLAGS_CACHE_IDX 2
#define VMX_VMCS32_GUEST_INTERRUPTIBILITY_STATE_CACHE_IDX 3
#define VMX_VMCS_CTRL_CR0_READ_SHADOW_CACHE_IDX 4
#define VMX_VMCS64_GUEST_CR0_CACHE_IDX 5
#define VMX_VMCS_CTRL_CR4_READ_SHADOW_CACHE_IDX 6
#define VMX_VMCS64_GUEST_CR4_CACHE_IDX 7
#define VMX_VMCS64_GUEST_DR7_CACHE_IDX 8
#define VMX_VMCS32_GUEST_SYSENTER_CS_CACHE_IDX 9
#define VMX_VMCS64_GUEST_SYSENTER_EIP_CACHE_IDX 10
#define VMX_VMCS64_GUEST_SYSENTER_ESP_CACHE_IDX 11
#define VMX_VMCS32_GUEST_GDTR_LIMIT_CACHE_IDX 12
#define VMX_VMCS64_GUEST_GDTR_BASE_CACHE_IDX 13
#define VMX_VMCS32_GUEST_IDTR_LIMIT_CACHE_IDX 14
#define VMX_VMCS64_GUEST_IDTR_BASE_CACHE_IDX 15
#define VMX_VMCS16_GUEST_FIELD_CS_CACHE_IDX 16
#define VMX_VMCS32_GUEST_CS_LIMIT_CACHE_IDX 17
#define VMX_VMCS64_GUEST_CS_BASE_CACHE_IDX 18
#define VMX_VMCS32_GUEST_CS_ACCESS_RIGHTS_CACHE_IDX 19
#define VMX_VMCS16_GUEST_FIELD_DS_CACHE_IDX 20
#define VMX_VMCS32_GUEST_DS_LIMIT_CACHE_IDX 21
#define VMX_VMCS64_GUEST_DS_BASE_CACHE_IDX 22
#define VMX_VMCS32_GUEST_DS_ACCESS_RIGHTS_CACHE_IDX 23
#define VMX_VMCS16_GUEST_FIELD_ES_CACHE_IDX 24
#define VMX_VMCS32_GUEST_ES_LIMIT_CACHE_IDX 25
#define VMX_VMCS64_GUEST_ES_BASE_CACHE_IDX 26
#define VMX_VMCS32_GUEST_ES_ACCESS_RIGHTS_CACHE_IDX 27
#define VMX_VMCS16_GUEST_FIELD_FS_CACHE_IDX 28
#define VMX_VMCS32_GUEST_FS_LIMIT_CACHE_IDX 29
#define VMX_VMCS64_GUEST_FS_BASE_CACHE_IDX 30
#define VMX_VMCS32_GUEST_FS_ACCESS_RIGHTS_CACHE_IDX 31
#define VMX_VMCS16_GUEST_FIELD_GS_CACHE_IDX 32
#define VMX_VMCS32_GUEST_GS_LIMIT_CACHE_IDX 33
#define VMX_VMCS64_GUEST_GS_BASE_CACHE_IDX 34
#define VMX_VMCS32_GUEST_GS_ACCESS_RIGHTS_CACHE_IDX 35
#define VMX_VMCS16_GUEST_FIELD_SS_CACHE_IDX 36
#define VMX_VMCS32_GUEST_SS_LIMIT_CACHE_IDX 37
#define VMX_VMCS64_GUEST_SS_BASE_CACHE_IDX 38
#define VMX_VMCS32_GUEST_SS_ACCESS_RIGHTS_CACHE_IDX 39
#define VMX_VMCS16_GUEST_FIELD_TR_CACHE_IDX 40
#define VMX_VMCS32_GUEST_TR_LIMIT_CACHE_IDX 41
#define VMX_VMCS64_GUEST_TR_BASE_CACHE_IDX 42
#define VMX_VMCS32_GUEST_TR_ACCESS_RIGHTS_CACHE_IDX 43
#define VMX_VMCS16_GUEST_FIELD_LDTR_CACHE_IDX 44
#define VMX_VMCS32_GUEST_LDTR_LIMIT_CACHE_IDX 45
#define VMX_VMCS64_GUEST_LDTR_BASE_CACHE_IDX 46
#define VMX_VMCS32_GUEST_LDTR_ACCESS_RIGHTS_CACHE_IDX 47
#define VMX_VMCS32_RO_EXIT_REASON_CACHE_IDX 48
#define VMX_VMCS32_RO_VM_INSTR_ERROR_CACHE_IDX 49
#define VMX_VMCS32_RO_EXIT_INSTR_LENGTH_CACHE_IDX 50
#define VMX_VMCS32_RO_EXIT_INTERRUPTION_ERRCODE_CACHE_IDX 51
#define VMX_VMCS32_RO_EXIT_INSTR_INFO_CACHE_IDX 52
#define VMX_VMCS32_RO_EXIT_INTERRUPTION_INFO_CACHE_IDX 53
#define VMX_VMCS_RO_EXIT_QUALIFICATION_CACHE_IDX 54
#define VMX_VMCS32_RO_IDT_INFO_CACHE_IDX 55
#define VMX_VMCS32_RO_IDT_ERRCODE_CACHE_IDX 56
#define VMX_VMCS_MAX_CACHE_IDX (VMX_VMCS32_RO_IDT_ERRCODE_CACHE_IDX+1)
#define VMX_VMCS64_GUEST_CR3_CACHE_IDX 57
#define VMX_VMCS_EXIT_PHYS_ADDR_FULL_CACHE_IDX 58
#define VMX_VMCS_MAX_NESTED_PAGING_CACHE_IDX (VMX_VMCS_EXIT_PHYS_ADDR_FULL_CACHE_IDX+1)
#ifdef IN_RING0
/**
* Enters the VT-x session
*
* @returns VBox status code.
* @param pVM The VM to operate on.
* @param pVCpu The VMCPU to operate on.
* @param pCpu CPU info struct
*/
VMMR0DECL(int) VMXR0Enter(PVM pVM, PVMCPU pVCpu, PHMGLOBLCPUINFO pCpu);
/**
* Leaves the VT-x session
*
* @returns VBox status code.
* @param pVM The VM to operate on.
* @param pVCpu The VMCPU to operate on.
* @param pCtx CPU context
*/
VMMR0DECL(int) VMXR0Leave(PVM pVM, PVMCPU pVCpu, 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(PHMGLOBLCPUINFO 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(PHMGLOBLCPUINFO 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 pVCpu The VMCPU to operate on.
*/
VMMR0DECL(int) VMXR0SaveHostState(PVM pVM, PVMCPU pVCpu);
/**
* Loads the guest state
*
* @returns VBox status code.
* @param pVM The VM to operate on.
* @param pVCpu The VMCPU to operate on.
* @param pCtx Guest context
*/
VMMR0DECL(int) VMXR0LoadGuestState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
/**
* Runs guest code in a VT-x VM.
*
* @returns VBox status code.
* @param pVM The VM to operate on.
* @param pVCpu The VMCPU to operate on.
* @param pCtx Guest context
*/
VMMR0DECL(int) VMXR0RunGuestCode(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
# if HC_ARCH_BITS == 32 && defined(VBOX_WITH_64_BITS_GUESTS) && !defined(VBOX_WITH_HYBRID_32BIT_KERNEL)
/**
* Executes the specified handler in 64 mode
*
* @returns VBox status code.
* @param pVM The VM to operate on.
* @param pVCpu The VMCPU to operate on.
* @param pCtx Guest context
* @param pfnHandler RC handler
* @param cbParam Number of parameters
* @param paParam Array of 32 bits parameters
*/
VMMR0DECL(int) VMXR0Execute64BitsHandler(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx, RTRCPTR pfnHandler, uint32_t cbParam, uint32_t *paParam);
# endif
# define VMX_WRITE_SELREG(REG, reg) \
{ \
rc = VMXWriteVMCS(VMX_VMCS16_GUEST_FIELD_##REG, pCtx->reg); \
rc |= VMXWriteVMCS(VMX_VMCS32_GUEST_##REG##_LIMIT, pCtx->reg##Hid.u32Limit); \
rc |= VMXWriteVMCS64(VMX_VMCS64_GUEST_##REG##_BASE, pCtx->reg##Hid.u64Base); \
if ((pCtx->eflags.u32 & X86_EFL_VM)) \
{ \
/* Must override this or else VT-x will fail with invalid guest state errors. */ \
/* DPL=3, present, code/data, r/w/accessed. */ \
val = (pCtx->reg##Hid.Attr.u & ~0xFF) | 0xF3; \
} \
else \
if ( CPUMIsGuestInRealModeEx(pCtx) \
&& !pVM->hwaccm.s.vmx.fUnrestrictedGuest) \
{ \
/* 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->reg || !CPUMIsGuestInPagedProtectedModeEx(pCtx) || (!pCtx->csHid.Attr.n.u1DefBig && !CPUMIsGuestIn64BitCodeEx(pCtx))) \
&& 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_VMCS32_GUEST_##REG##_ACCESS_RIGHTS, val); \
}
# define VMX_READ_SELREG(REG, reg) \
{ \
VMXReadCachedVMCS(VMX_VMCS16_GUEST_FIELD_##REG, &val); \
pCtx->reg = val; \
VMXReadCachedVMCS(VMX_VMCS32_GUEST_##REG##_LIMIT, &val); \
pCtx->reg##Hid.u32Limit = val; \
VMXReadCachedVMCS(VMX_VMCS64_GUEST_##REG##_BASE, &val); \
pCtx->reg##Hid.u64Base = val; \
VMXReadCachedVMCS(VMX_VMCS32_GUEST_##REG##_ACCESS_RIGHTS, &val); \
pCtx->reg##Hid.Attr.u = val; \
}
/* Don't read from the cache in this macro; used only in case of failure where the cache is out of sync. */
# define VMX_LOG_SELREG(REG, szSelReg, val) \
{ \
VMXReadVMCS(VMX_VMCS16_GUEST_FIELD_##REG, &(val)); \
Log(("%s Selector %x\n", szSelReg, (val))); \
VMXReadVMCS(VMX_VMCS32_GUEST_##REG##_LIMIT, &(val)); \
Log(("%s Limit %x\n", szSelReg, (val))); \
VMXReadVMCS(VMX_VMCS64_GUEST_##REG##_BASE, &(val)); \
Log(("%s Base %RX64\n", szSelReg, (uint64_t)(val))); \
VMXReadVMCS(VMX_VMCS32_GUEST_##REG##_ACCESS_RIGHTS, &(val)); \
Log(("%s Attributes %x\n", szSelReg, (val))); \
}
/**
* Cache VMCS writes for performance reasons (Darwin) and for running 64 bits guests on 32 bits hosts.
*
* @param pVCpu The VMCPU to operate on.
* @param idxField VMCS field
* @param u64Val Value
*/
VMMR0DECL(int) VMXWriteCachedVMCSEx(PVMCPU pVCpu, uint32_t idxField, uint64_t u64Val);
#ifdef VMX_USE_CACHED_VMCS_ACCESSES
/**
* Return value of cached VMCS read for performance reasons (Darwin) and for running 64 bits guests on 32 bits hosts.
*
* @param pVCpu The VMCPU to operate on.
* @param idxField VMCS cache index (not VMCS field index!)
* @param pVal Value
*/
DECLINLINE(int) VMXReadCachedVMCSEx(PVMCPU pVCpu, uint32_t idxCache, RTGCUINTREG *pVal)
{
Assert(idxCache <= VMX_VMCS_MAX_NESTED_PAGING_CACHE_IDX);
*pVal = pVCpu->hwaccm.s.vmx.VMCSCache.Read.aFieldVal[idxCache];
return VINF_SUCCESS;
}
#endif
/**
* Return value of cached VMCS read for performance reasons (Darwin) and for running 64 bits guests on 32 bits hosts.
*
* @param idxField VMCS field
* @param pVal Value pointer (out)
*/
#ifdef VMX_USE_CACHED_VMCS_ACCESSES
# define VMXReadCachedVMCS(idxField, pVal) VMXReadCachedVMCSEx(pVCpu, idxField##_CACHE_IDX, pVal)
#else
# define VMXReadCachedVMCS(idxField, pVal) VMXReadVMCS(idxField, pVal)
#endif
/**
* Setup cached VMCS for performance reasons (Darwin) and for running 64 bits guests on 32 bits hosts.
*
* @param pCache The cache.
* @param idxField VMCS field
*/
#define VMXSetupCachedReadVMCS(pCache, idxField) \
{ \
Assert(pCache->Read.aField[idxField##_CACHE_IDX] == 0); \
pCache->Read.aField[idxField##_CACHE_IDX] = idxField; \
pCache->Read.aFieldVal[idxField##_CACHE_IDX] = 0; \
}
#define VMX_SETUP_SELREG(REG, pCache) \
{ \
VMXSetupCachedReadVMCS(pCache, VMX_VMCS16_GUEST_FIELD_##REG); \
VMXSetupCachedReadVMCS(pCache, VMX_VMCS32_GUEST_##REG##_LIMIT); \
VMXSetupCachedReadVMCS(pCache, VMX_VMCS64_GUEST_##REG##_BASE); \
VMXSetupCachedReadVMCS(pCache, VMX_VMCS32_GUEST_##REG##_ACCESS_RIGHTS); \
}
/**
* Prepares for and executes VMLAUNCH (32 bits guest mode)
*
* @returns VBox status code
* @param fResume vmlauch/vmresume
* @param pCtx Guest context
* @param pCache VMCS cache
* @param pVM The VM to operate on.
* @param pVCpu The VMCPU to operate on.
*/
DECLASM(int) VMXR0StartVM32(RTHCUINT fResume, PCPUMCTX pCtx, PVMCSCACHE pCache, PVM pVM, PVMCPU pVCpu);
/**
* Prepares for and executes VMLAUNCH (64 bits guest mode)
*
* @returns VBox status code
* @param fResume vmlauch/vmresume
* @param pCtx Guest context
* @param pCache VMCS cache
* @param pVM The VM to operate on.
* @param pVCpu The VMCPU to operate on.
*/
DECLASM(int) VMXR0StartVM64(RTHCUINT fResume, PCPUMCTX pCtx, PVMCSCACHE pCache, PVM pVM, PVMCPU pVCpu);
# if HC_ARCH_BITS == 32 && defined(VBOX_WITH_64_BITS_GUESTS) && !defined(VBOX_WITH_HYBRID_32BIT_KERNEL)
/**
* Prepares for and executes VMLAUNCH (64 bits guest mode)
*
* @returns VBox status code
* @param fResume vmlauch/vmresume
* @param pCtx Guest context
* @param pCache VMCS cache
* @param pVM The VM to operate on.
* @param pVCpu The VMCPU to operate on.
*/
DECLASM(int) VMXR0SwitcherStartVM64(RTHCUINT fResume, PCPUMCTX pCtx, PVMCSCACHE pCache, PVM pVM, PVMCPU pVCpu);
# endif
#endif /* IN_RING0 */
/** @} */
RT_C_DECLS_END
#endif