CPUMR3Db.cpp revision 6a0359b8230a1b91fe49967c124a75191c3dfbf9
/* $Id$ */
/** @file
* CPUM - CPU database part.
*/
/*
* Copyright (C) 2013 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.
*/
/*******************************************************************************
* Header Files *
*******************************************************************************/
#define LOG_GROUP LOG_GROUP_CPUM
#include <VBox/vmm/cpum.h>
#include "CPUMInternal.h"
#include <VBox/vmm/vm.h>
#include <VBox/err.h>
#include <iprt/asm-amd64-x86.h>
#include <iprt/mem.h>
#include <iprt/string.h>
/*******************************************************************************
* Structures and Typedefs *
*******************************************************************************/
typedef struct CPUMDBENTRY
{
/** The CPU name. */
const char *pszName;
/** The full CPU name. */
const char *pszFullName;
/** The CPU vendor (CPUMCPUVENDOR). */
uint8_t enmVendor;
/** The CPU family. */
uint8_t uFamily;
/** The CPU model. */
uint8_t uModel;
/** The CPU stepping. */
uint8_t uStepping;
/** The microarchitecture. */
CPUMMICROARCH enmMicroarch;
/** Flags (TBD). */
uint32_t fFlags;
/** The maximum physical address with of the CPU. This should correspond to
* the value in CPUID leaf 0x80000008 when present. */
uint8_t cMaxPhysAddrWidth;
/** Pointer to an array of CPUID leaves. */
PCCPUMCPUIDLEAF paCpuIdLeaves;
/** The number of CPUID leaves in the array paCpuIdLeaves points to. */
uint32_t cCpuIdLeaves;
/** The method used to deal with unknown CPUID leaves. */
CPUMUKNOWNCPUID enmUnknownCpuId;
/** The default unknown CPUID value. */
CPUMCPUID DefUnknownCpuId;
/** MSR mask. Several microarchitectures ignore higher bits of the */
uint32_t fMsrMask;
/** The number of ranges in the table pointed to b paMsrRanges. */
uint32_t cMsrRanges;
/** MSR ranges for this CPU. */
PCCPUMMSRRANGE paMsrRanges;
} CPUMDBENTRY;
/*******************************************************************************
* Defined Constants And Macros *
*******************************************************************************/
/** @def NULL_ALONE
* For eliminating an unnecessary data dependency in standalone builds (for
* VBoxSVC). */
/** @def ZERO_ALONE
* For eliminating an unnecessary data size dependency in standalone builds (for
* VBoxSVC). */
#ifndef CPUM_DB_STANDALONE
# define NULL_ALONE(a_aTable) a_aTable
# define ZERO_ALONE(a_cTable) a_cTable
#else
# define NULL_ALONE(a_aTable) NULL
# define ZERO_ALONE(a_cTable) 0
#endif
/** @name Short macros for the MSR range entries.
*
* These are rather cryptic, but this is to reduce the attack on the right
* margin.
*
* @{ */
/** Alias one MSR onto another (a_uTarget). */
#define MAL(a_uMsr, a_szName, a_uTarget) \
RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_MsrAlias, kCpumMsrWrFn_MsrAlias, 0, a_uTarget, 0, 0, a_szName)
/** Functions handles everything. */
#define MFN(a_uMsr, a_szName, a_enmRdFnSuff, a_enmWrFnSuff) \
RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, 0, 0, 0, 0, a_szName)
/** Functions handles everything, with GP mask. */
#define MFG(a_uMsr, a_szName, a_enmRdFnSuff, a_enmWrFnSuff, a_fWrGpMask) \
RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, 0, 0, 0, a_fWrGpMask, a_szName)
/** Function handlers, read-only. */
#define MFO(a_uMsr, a_szName, a_enmRdFnSuff) \
RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_ReadOnly, 0, 0, 0, UINT64_MAX, a_szName)
/** Function handlers, ignore all writes. */
#define MFI(a_uMsr, a_szName, a_enmRdFnSuff) \
RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_IgnoreWrite, 0, 0, UINT64_MAX, 0, a_szName)
/** Function handlers, with value. */
#define MFV(a_uMsr, a_szName, a_enmRdFnSuff, a_enmWrFnSuff, a_uValue) \
RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, 0, a_uValue, 0, 0, a_szName)
/** Function handlers, with write ignore mask. */
#define MFW(a_uMsr, a_szName, a_enmRdFnSuff, a_enmWrFnSuff, a_fWrIgnMask) \
RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, 0, 0, a_fWrIgnMask, 0, a_szName)
/** Function handlers, extended version. */
#define MFX(a_uMsr, a_szName, a_enmRdFnSuff, a_enmWrFnSuff, a_uValue, a_fWrIgnMask, a_fWrGpMask) \
RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, 0, a_uValue, a_fWrIgnMask, a_fWrGpMask, a_szName)
/** Function handlers, with CPUMCPU storage variable. */
#define MFS(a_uMsr, a_szName, a_enmRdFnSuff, a_enmWrFnSuff, a_CpumCpuMember) \
RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, \
RT_OFFSETOF(CPUMCPU, a_CpumCpuMember), 0, 0, 0, a_szName)
/** Function handlers, with CPUMCPU storage variable, ignore mask and GP mask. */
#define MFZ(a_uMsr, a_szName, a_enmRdFnSuff, a_enmWrFnSuff, a_CpumCpuMember, a_fWrIgnMask, a_fWrGpMask) \
RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, \
RT_OFFSETOF(CPUMCPU, a_CpumCpuMember), 0, a_fWrIgnMask, a_fWrGpMask, a_szName)
/** Read-only fixed value. */
#define MVO(a_uMsr, a_szName, a_uValue) \
RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_FixedValue, kCpumMsrWrFn_ReadOnly, 0, a_uValue, 0, UINT64_MAX, a_szName)
/** Read-only fixed value, ignores all writes. */
#define MVI(a_uMsr, a_szName, a_uValue) \
RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_FixedValue, kCpumMsrWrFn_IgnoreWrite, 0, a_uValue, UINT64_MAX, 0, a_szName)
/** Read fixed value, ignore writes outside GP mask. */
#define MVG(a_uMsr, a_szName, a_uValue, a_fWrGpMask) \
RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_FixedValue, kCpumMsrWrFn_IgnoreWrite, 0, a_uValue, 0, a_fWrGpMask, a_szName)
/** Read fixed value, extended version with both GP and ignore masks. */
#define MVX(a_uMsr, a_szName, a_uValue, a_fWrIgnMask, a_fWrGpMask) \
RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_FixedValue, kCpumMsrWrFn_IgnoreWrite, 0, a_uValue, a_fWrIgnMask, a_fWrGpMask, a_szName)
/** The short form, no CPUM backing. */
#define MSN(a_uMsr, a_szName, a_enmRdFnSuff, a_enmWrFnSuff, a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask) \
RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, 0, \
a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask, a_szName)
/** Range: Functions handles everything. */
#define RFN(a_uFirst, a_uLast, a_szName, a_enmRdFnSuff, a_enmWrFnSuff) \
RINT(a_uFirst, a_uLast, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, 0, 0, 0, 0, a_szName)
/** Range: Read fixed value, read-only. */
#define RVO(a_uFirst, a_uLast, a_szName, a_uValue) \
RINT(a_uFirst, a_uLast, kCpumMsrRdFn_FixedValue, kCpumMsrWrFn_ReadOnly, 0, a_uValue, 0, UINT64_MAX, a_szName)
/** Range: Read fixed value, ignore writes. */
#define RVI(a_uFirst, a_uLast, a_szName, a_uValue) \
RINT(a_uFirst, a_uLast, kCpumMsrRdFn_FixedValue, kCpumMsrWrFn_IgnoreWrite, 0, a_uValue, UINT64_MAX, 0, a_szName)
/** Range: The short form, no CPUM backing. */
#define RSN(a_uFirst, a_uLast, a_szName, a_enmRdFnSuff, a_enmWrFnSuff, a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask) \
RINT(a_uFirst, a_uLast, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, 0, \
a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask, a_szName)
/** Internal form used by the macros. */
#ifdef VBOX_WITH_STATISTICS
# define RINT(a_uFirst, a_uLast, a_enmRdFn, a_enmWrFn, a_offCpumCpu, a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask, a_szName) \
{ a_uFirst, a_uLast, a_enmRdFn, a_enmWrFn, a_offCpumCpu, 0, a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask, a_szName, \
{ 0 }, { 0 }, { 0 }, { 0 } }
#else
# define RINT(a_uFirst, a_uLast, a_enmRdFn, a_enmWrFn, a_offCpumCpu, a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask, a_szName) \
{ a_uFirst, a_uLast, a_enmRdFn, a_enmWrFn, a_offCpumCpu, 0, a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask, a_szName }
#endif
/** @} */
#include "cpus/Intel_Pentium_M_processor_2_00GHz.h"
#include "cpus/Intel_Core_i7_3960X.h"
#include "cpus/Intel_Core_i5_3570.h"
#include "cpus/AMD_FX_8150_Eight_Core.h"
#include "cpus/Quad_Core_AMD_Opteron_2384.h"
/**
* The database entries.
*
* Warning! The first entry is special. It is the fallback for unknown
* processors. Thus, it better be pretty representative.
*/
static CPUMDBENTRY const * const g_apCpumDbEntries[] =
{
#ifdef VBOX_CPUDB_Intel_Core_i5_3570
&g_Entry_Intel_Core_i5_3570,
#endif
#ifdef VBOX_CPUDB_Intel_Core_i7_3960X
&g_Entry_Intel_Core_i7_3960X,
#endif
#ifdef Intel_Pentium_M_processor_2_00GHz
&g_Entry_Intel_Pentium_M_processor_2_00GHz,
#endif
#ifdef VBOX_CPUDB_AMD_FX_8150_Eight_Core
&g_Entry_AMD_FX_8150_Eight_Core,
#endif
#ifdef VBOX_CPUDB_AMD_Phenom_II_X6_1100T
&g_Entry_AMD_Phenom_II_X6_1100T,
#endif
#ifdef VBOX_CPUDB_Quad_Core_AMD_Opteron_2384
&g_Entry_Quad_Core_AMD_Opteron_2384,
#endif
};
#ifndef CPUM_DB_STANDALONE
/**
* Binary search used by cpumR3MsrRangesInsert and has some special properties
* wrt to mismatches.
*
* @returns Insert location.
* @param paMsrRanges The MSR ranges to search.
* @param cMsrRanges The number of MSR ranges.
* @param uMsr What to search for.
*/
static uint32_t cpumR3MsrRangesBinSearch(PCCPUMMSRRANGE paMsrRanges, uint32_t cMsrRanges, uint32_t uMsr)
{
if (!cMsrRanges)
return 0;
uint32_t iStart = 0;
uint32_t iLast = cMsrRanges - 1;
for (;;)
{
uint32_t i = iStart + (iLast - iStart + 1) / 2;
if ( uMsr >= paMsrRanges[i].uFirst
&& uMsr <= paMsrRanges[i].uLast)
return i;
if (uMsr < paMsrRanges[i].uFirst)
{
if (i <= iStart)
return i;
iLast = i - 1;
}
else
{
if (i >= iLast)
{
if (i < cMsrRanges)
i++;
return i;
}
iStart = i + 1;
}
}
}
/**
* Ensures that there is space for at least @a cNewRanges in the table,
* reallocating the table if necessary.
*
* @returns Pointer to the MSR ranges on success, NULL on failure. On failure
* @a *ppaMsrRanges is freed and set to NULL.
* @param ppaMsrRanges The variable pointing to the ranges (input/output).
* @param cMsrRanges The current number of ranges.
* @param cNewRanges The number of ranges to be added.
*/
static PCPUMMSRRANGE cpumR3MsrRangesEnsureSpace(PCPUMMSRRANGE *ppaMsrRanges, uint32_t cMsrRanges, uint32_t cNewRanges)
{
uint32_t cMsrRangesAllocated = RT_ALIGN_32(cMsrRanges, 16);
if (cMsrRangesAllocated < cMsrRanges + cNewRanges)
{
uint32_t cNew = RT_ALIGN_32(cMsrRanges + cNewRanges, 16);
void *pvNew = RTMemRealloc(*ppaMsrRanges, cNew * sizeof(**ppaMsrRanges));
if (!pvNew)
{
RTMemFree(*ppaMsrRanges);
*ppaMsrRanges = NULL;
return NULL;
}
*ppaMsrRanges = (PCPUMMSRRANGE)pvNew;
}
return *ppaMsrRanges;
}
/**
* Inserts a new MSR range in into an sorted MSR range array.
*
* If the new MSR range overlaps existing ranges, the existing ones will be
* adjusted/removed to fit in the new one.
*
* @returns VBox status code.
* @retval VINF_SUCCESS
* @retval VERR_NO_MEMORY
*
* @param ppaMsrRanges The variable pointing to the ranges (input/output).
* @param pcMsrRanges The variable holding number of ranges.
* @param pNewRange The new range.
*/
int cpumR3MsrRangesInsert(PCPUMMSRRANGE *ppaMsrRanges, uint32_t *pcMsrRanges, PCCPUMMSRRANGE pNewRange)
{
uint32_t cMsrRanges = *pcMsrRanges;
PCPUMMSRRANGE paMsrRanges = *ppaMsrRanges;
Assert(pNewRange->uLast >= pNewRange->uFirst);
Assert(pNewRange->enmRdFn > kCpumMsrRdFn_Invalid && pNewRange->enmRdFn < kCpumMsrRdFn_End);
Assert(pNewRange->enmWrFn > kCpumMsrWrFn_Invalid && pNewRange->enmWrFn < kCpumMsrWrFn_End);
/*
* Optimize the linear insertion case where we add new entries at the end.
*/
if ( cMsrRanges > 0
&& paMsrRanges[cMsrRanges - 1].uLast < pNewRange->uFirst)
{
paMsrRanges = cpumR3MsrRangesEnsureSpace(ppaMsrRanges, cMsrRanges, 1);
if (!paMsrRanges)
return VERR_NO_MEMORY;
paMsrRanges[cMsrRanges] = *pNewRange;
*pcMsrRanges += 1;
}
else
{
uint32_t i = cpumR3MsrRangesBinSearch(paMsrRanges, cMsrRanges, pNewRange->uFirst);
Assert(i == cMsrRanges || pNewRange->uFirst <= paMsrRanges[i].uLast);
Assert(i == 0 || pNewRange->uFirst > paMsrRanges[i - 1].uLast);
/*
* Adding an entirely new entry?
*/
if ( i >= cMsrRanges
|| pNewRange->uLast < paMsrRanges[i].uFirst)
{
paMsrRanges = cpumR3MsrRangesEnsureSpace(ppaMsrRanges, cMsrRanges, 1);
if (!paMsrRanges)
return VERR_NO_MEMORY;
if (i < cMsrRanges)
memmove(&paMsrRanges[i + 1], &paMsrRanges[i], (cMsrRanges - i) * sizeof(paMsrRanges[0]));
paMsrRanges[i] = *pNewRange;
*pcMsrRanges += 1;
}
/*
* Replace existing entry?
*/
else if ( pNewRange->uFirst == paMsrRanges[i].uFirst
&& pNewRange->uLast == paMsrRanges[i].uLast)
paMsrRanges[i] = *pNewRange;
/*
* Splitting an existing entry?
*/
else if ( pNewRange->uFirst > paMsrRanges[i].uFirst
&& pNewRange->uLast < paMsrRanges[i].uLast)
{
paMsrRanges = cpumR3MsrRangesEnsureSpace(ppaMsrRanges, cMsrRanges, 2);
if (!paMsrRanges)
return VERR_NO_MEMORY;
if (i < cMsrRanges)
memmove(&paMsrRanges[i + 2], &paMsrRanges[i], (cMsrRanges - i) * sizeof(paMsrRanges[0]));
paMsrRanges[i + 1] = *pNewRange;
paMsrRanges[i + 2] = paMsrRanges[i];
paMsrRanges[i ].uLast = pNewRange->uFirst - 1;
paMsrRanges[i + 2].uFirst = pNewRange->uLast + 1;
*pcMsrRanges += 2;
}
/*
* Complicated scenarios that can affect more than one range.
*
* The current code does not optimize memmove calls when replacing
* one or more existing ranges, because it's tedious to deal with and
* not expected to be a frequent usage scenario.
*/
else
{
/* Adjust start of first match? */
if ( pNewRange->uFirst <= paMsrRanges[i].uFirst
&& pNewRange->uLast < paMsrRanges[i].uLast)
paMsrRanges[i].uFirst = pNewRange->uLast + 1;
else
{
/* Adjust end of first match? */
if (pNewRange->uFirst > paMsrRanges[i].uFirst)
{
Assert(paMsrRanges[i].uLast >= pNewRange->uFirst);
paMsrRanges[i].uLast = pNewRange->uFirst - 1;
i++;
}
/* Replace the whole first match (lazy bird). */
else
{
if (i + 1 < cMsrRanges)
memmove(&paMsrRanges[i], &paMsrRanges[i + 1], (cMsrRanges - i - 1) * sizeof(paMsrRanges[0]));
cMsrRanges = *pcMsrRanges -= 1;
}
/* Do the new range affect more ranges? */
while ( i < cMsrRanges
&& pNewRange->uLast >= paMsrRanges[i].uFirst)
{
if (pNewRange->uLast < paMsrRanges[i].uLast)
{
/* Adjust the start of it, then we're done. */
paMsrRanges[i].uFirst = pNewRange->uLast + 1;
break;
}
/* Remove it entirely. */
if (i + 1 < cMsrRanges)
memmove(&paMsrRanges[i], &paMsrRanges[i + 1], (cMsrRanges - i - 1) * sizeof(paMsrRanges[0]));
cMsrRanges = *pcMsrRanges -= 1;
}
}
/* Now, perform a normal insertion. */
paMsrRanges = cpumR3MsrRangesEnsureSpace(ppaMsrRanges, cMsrRanges, 1);
if (!paMsrRanges)
return VERR_NO_MEMORY;
if (i < cMsrRanges)
memmove(&paMsrRanges[i + 1], &paMsrRanges[i], (cMsrRanges - i) * sizeof(paMsrRanges[0]));
paMsrRanges[i] = *pNewRange;
*pcMsrRanges += 1;
}
}
return VINF_SUCCESS;
}
int cpumR3DbGetCpuInfo(const char *pszName, PCPUMINFO pInfo)
{
CPUMDBENTRY const *pEntry = NULL;
int rc;
if (!strcmp(pszName, "host"))
{
/*
* Create a CPU database entry for the host CPU. This means getting
* the CPUID bits from the real CPU and grabbing the closest matching
* database entry for MSRs.
*/
rc = CPUMR3CpuIdDetectUnknownLeafMethod(&pInfo->enmUnknownCpuIdMethod, &pInfo->DefCpuId);
if (RT_FAILURE(rc))
return rc;
rc = CPUMR3CpuIdCollectLeaves(&pInfo->paCpuIdLeavesR3, &pInfo->cCpuIdLeaves);
if (RT_FAILURE(rc))
return rc;
/* Lookup database entry for MSRs. */
CPUMCPUVENDOR const enmVendor = CPUMR3CpuIdDetectVendorEx(pInfo->paCpuIdLeavesR3[0].uEax,
pInfo->paCpuIdLeavesR3[0].uEbx,
pInfo->paCpuIdLeavesR3[0].uEcx,
pInfo->paCpuIdLeavesR3[0].uEdx);
uint32_t const uStd1Eax = pInfo->paCpuIdLeavesR3[1].uEax;
uint8_t const uFamily = ASMGetCpuFamily(uStd1Eax);
uint8_t const uModel = ASMGetCpuModel(uStd1Eax, enmVendor == CPUMCPUVENDOR_INTEL);
uint8_t const uStepping = ASMGetCpuStepping(uStd1Eax);
CPUMMICROARCH const enmMicroarch = CPUMR3CpuIdDetermineMicroarchEx(enmVendor, uFamily, uModel, uStepping);
for (unsigned i = 0; i < RT_ELEMENTS(g_apCpumDbEntries); i++)
{
CPUMDBENTRY const *pCur = g_apCpumDbEntries[i];
if ((CPUMCPUVENDOR)pCur->enmVendor == enmVendor)
{
/* Anything from the same vendor is better than nothing: */
if (!pEntry)
pEntry = pCur;
/* Newer micro arch is better than an older one: */
else if ( pEntry->enmMicroarch < enmMicroarch
&& pCur->enmMicroarch >= enmMicroarch)
pEntry = pCur;
/* Prefer a micro arch match: */
else if ( pEntry->enmMicroarch != enmMicroarch
&& pCur->enmMicroarch == enmMicroarch)
pEntry = pCur;
/* If the micro arch matches, check model and stepping. Stop
looping if we get an exact match. */
else if ( pEntry->enmMicroarch == enmMicroarch
&& pCur->enmMicroarch == enmMicroarch)
{
if (pCur->uModel == uModel)
{
/* Perfect match? */
if (pCur->uStepping == uStepping)
{
pEntry = pCur;
break;
}
/* Better model match? */
if (pEntry->uModel != uModel)
pEntry = pCur;
/* The one with the closest stepping, prefering ones over earlier ones. */
else if ( pCur->uStepping > uStepping
? pCur->uStepping < pEntry->uStepping || pEntry->uStepping < uStepping
: pCur->uStepping > pEntry->uStepping)
pEntry = pCur;
}
/* The one with the closest model, prefering later ones over earlier ones. */
else if ( pCur->uModel > uModel
? pCur->uModel < pEntry->uModel || pEntry->uModel < uModel
: pCur->uModel > pEntry->uModel)
pEntry = pCur;
}
}
}
if (pEntry)
LogRel(("CPUM: Matched host CPU %s %#x/%#x/%#x %s with CPU DB entry '%s' (%s %#x/%#x/%#x %s).\n",
CPUMR3CpuVendorName(enmVendor), uFamily, uModel, uStepping, CPUMR3MicroarchName(enmMicroarch),
pEntry->pszName, CPUMR3CpuVendorName((CPUMCPUVENDOR)pEntry->enmVendor), pEntry->uFamily, pEntry->uModel,
pEntry->uStepping, CPUMR3MicroarchName(pEntry->enmMicroarch) ));
else
{
pEntry = g_apCpumDbEntries[0];
LogRel(("CPUM: No matching processor database entry %s %#x/%#x/%#x %s, falling back on '%s'.\n",
CPUMR3CpuVendorName(enmVendor), uFamily, uModel, uStepping, CPUMR3MicroarchName(enmMicroarch),
pEntry->pszName));
}
}
else
{
/*
* We're supposed to be emulating a specific CPU that is included in
* our CPU database. The CPUID tables needs to be copied onto the
* heap so the caller can modify them and so they can be freed like
* in the host case above.
*/
for (unsigned i = 0; i < RT_ELEMENTS(g_apCpumDbEntries); i++)
if (!strcmp(pszName, g_apCpumDbEntries[i]->pszName))
{
pEntry = g_apCpumDbEntries[i];
break;
}
if (!pEntry)
{
LogRel(("CPUM: Cannot locate any CPU by the name '%s'\n", pszName));
return VERR_CPUM_DB_CPU_NOT_FOUND;
}
pInfo->cCpuIdLeaves = pEntry->cCpuIdLeaves;
if (pEntry->cCpuIdLeaves)
{
pInfo->paCpuIdLeavesR3 = (PCPUMCPUIDLEAF)RTMemDup(pEntry->paCpuIdLeaves,
sizeof(pEntry->paCpuIdLeaves[0]) * pEntry->cCpuIdLeaves);
if (!pInfo->paCpuIdLeavesR3)
return VERR_NO_MEMORY;
}
else
pInfo->paCpuIdLeavesR3 = NULL;
pInfo->enmUnknownCpuIdMethod = pEntry->enmUnknownCpuId;
pInfo->DefCpuId = pEntry->DefUnknownCpuId;
LogRel(("CPUM: Using CPU DB entry '%s' (%s %#x/%#x/%#x %s).\n",
pEntry->pszName, CPUMR3CpuVendorName((CPUMCPUVENDOR)pEntry->enmVendor),
pEntry->uFamily, pEntry->uModel, pEntry->uStepping, CPUMR3MicroarchName(pEntry->enmMicroarch) ));
}
pInfo->fMsrMask = pEntry->fMsrMask;
pInfo->iFirstExtCpuIdLeaf = 0; /* Set by caller. */
pInfo->uPadding = 0;
pInfo->paCpuIdLeavesR0 = NIL_RTR0PTR;
pInfo->paMsrRangesR0 = NIL_RTR0PTR;
pInfo->paCpuIdLeavesRC = NIL_RTRCPTR;
pInfo->paMsrRangesRC = NIL_RTRCPTR;
/*
* Copy the MSR range.
*/
uint32_t cMsrs = 0;
PCPUMMSRRANGE paMsrs = NULL;
PCCPUMMSRRANGE pCurMsr = pEntry->paMsrRanges;
uint32_t cLeft = pEntry->cMsrRanges;
while (cLeft-- > 0)
{
rc = cpumR3MsrRangesInsert(&paMsrs, &cMsrs, pCurMsr);
if (RT_FAILURE(rc))
{
Assert(!paMsrs); /* The above function frees this. */
RTMemFree(pInfo->paCpuIdLeavesR3);
pInfo->paCpuIdLeavesR3 = NULL;
return rc;
}
pCurMsr++;
}
pInfo->paMsrRangesR3 = paMsrs;
pInfo->cMsrRanges = cMsrs;
return VINF_SUCCESS;
}
/**
* Register statistics for the MSRs.
*
* This must not be called before the MSRs have been finalized and moved to the
* hyper heap.
*
* @returns VBox status code.
* @param pVM Pointer to the cross context VM structure.
*/
int cpumR3MsrRegStats(PVM pVM)
{
/*
* Global statistics.
*/
PCPUM pCpum = &pVM->cpum.s;
STAM_REL_REG(pVM, &pCpum->cMsrReads, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/Reads",
STAMUNIT_OCCURENCES, "All RDMSRs making it to CPUM.");
STAM_REL_REG(pVM, &pCpum->cMsrReadsRaiseGp, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/ReadsRaisingGP",
STAMUNIT_OCCURENCES, "RDMSR raising #GPs, except unknown MSRs.");
STAM_REL_REG(pVM, &pCpum->cMsrReadsUnknown, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/ReadsUnknown",
STAMUNIT_OCCURENCES, "RDMSR on unknown MSRs (raises #GP).");
STAM_REL_REG(pVM, &pCpum->cMsrWrites, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/Writes",
STAMUNIT_OCCURENCES, "All RDMSRs making it to CPUM.");
STAM_REL_REG(pVM, &pCpum->cMsrWritesToIgnoredBits, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/WritesRaisingGP",
STAMUNIT_OCCURENCES, "WRMSR raising #GPs, except unknown MSRs.");
STAM_REL_REG(pVM, &pCpum->cMsrWritesRaiseGp, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/WritesToIgnoredBits",
STAMUNIT_OCCURENCES, "Writing of ignored bits.");
STAM_REL_REG(pVM, &pCpum->cMsrWritesUnknown, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/WritesUnknown",
STAMUNIT_OCCURENCES, "WRMSR on unknown MSRs (raises #GP).");
# ifdef VBOX_WITH_STATISTICS
/*
* Per range.
*/
PCPUMMSRRANGE paRanges = pVM->cpum.s.GuestInfo.paMsrRangesR3;
uint32_t cRanges = pVM->cpum.s.GuestInfo.cMsrRanges;
for (uint32_t i = 0; i < cRanges; i++)
{
char szName[160];
ssize_t cchName;
if (paRanges[i].uFirst == paRanges[i].uLast)
cchName = RTStrPrintf(szName, sizeof(szName), "/CPUM/MSRs/%#010x-%s",
paRanges[i].uFirst, paRanges[i].szName);
else
cchName = RTStrPrintf(szName, sizeof(szName), "/CPUM/MSRs/%#010x-%#010x-%s",
paRanges[i].uFirst, paRanges[i].uLast, paRanges[i].szName);
RTStrCopy(&szName[cchName], sizeof(szName) - cchName, "-reads");
STAMR3Register(pVM, &paRanges[i].cReads, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_OCCURENCES, "RDMSR");
RTStrCopy(&szName[cchName], sizeof(szName) - cchName, "-writes");
STAMR3Register(pVM, &paRanges[i].cWrites, STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "WRMSR");
RTStrCopy(&szName[cchName], sizeof(szName) - cchName, "-GPs");
STAMR3Register(pVM, &paRanges[i].cGps, STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "#GPs");
RTStrCopy(&szName[cchName], sizeof(szName) - cchName, "-ign-bits-writes");
STAMR3Register(pVM, &paRanges[i].cIgnoredBits, STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "WRMSR w/ ignored bits");
}
# endif /* VBOX_WITH_STATISTICS */
return VINF_SUCCESS;
}
#endif /* !CPUM_DB_STANDALONE */