/* $Id: CPUMR3CpuId.cpp $ */ /** @file * CPUM - CPU ID part. */ /* * Copyright (C) 2013-2022 Oracle and/or its affiliates. * * This file is part of VirtualBox base platform packages, as * available from https://www.virtualbox.org. * * This program 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 3 of the * License. * * This program is distributed in the hope that it will be useful, but * WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * General Public License for more details. * * You should have received a copy of the GNU General Public License * along with this program; if not, see . * * SPDX-License-Identifier: GPL-3.0-only */ /********************************************************************************************************************************* * Header Files * *********************************************************************************************************************************/ #define LOG_GROUP LOG_GROUP_CPUM #include #include #include #include #include #include "CPUMInternal.h" #include #include #include #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) # include #endif #include #include #include #include /********************************************************************************************************************************* * Defined Constants And Macros * *********************************************************************************************************************************/ /** For sanity and avoid wasting hyper heap on buggy config / saved state. */ #define CPUM_CPUID_MAX_LEAVES 2048 #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) /** * Determins the host CPU MXCSR mask. * * @returns MXCSR mask. */ VMMR3DECL(uint32_t) CPUMR3DeterminHostMxCsrMask(void) { if ( ASMHasCpuId() && RTX86IsValidStdRange(ASMCpuId_EAX(0)) && ASMCpuId_EDX(1) & X86_CPUID_FEATURE_EDX_FXSR) { uint8_t volatile abBuf[sizeof(X86FXSTATE) + 64]; PX86FXSTATE pState = (PX86FXSTATE)&abBuf[64 - ((uintptr_t)&abBuf[0] & 63)]; RT_ZERO(*pState); ASMFxSave(pState); if (pState->MXCSR_MASK == 0) return 0xffbf; return pState->MXCSR_MASK; } return 0; } #endif #ifndef IN_VBOX_CPU_REPORT /** * Gets a matching leaf in the CPUID leaf array, converted to a CPUMCPUID. * * @returns true if found, false it not. * @param paLeaves The CPUID leaves to search. This is sorted. * @param cLeaves The number of leaves in the array. * @param uLeaf The leaf to locate. * @param uSubLeaf The subleaf to locate. Pass 0 if no sub-leaves. * @param pLegacy The legacy output leaf. */ static bool cpumR3CpuIdGetLeafLegacy(PCPUMCPUIDLEAF paLeaves, uint32_t cLeaves, uint32_t uLeaf, uint32_t uSubLeaf, PCPUMCPUID pLegacy) { PCPUMCPUIDLEAF pLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, uLeaf, uSubLeaf); if (pLeaf) { pLegacy->uEax = pLeaf->uEax; pLegacy->uEbx = pLeaf->uEbx; pLegacy->uEcx = pLeaf->uEcx; pLegacy->uEdx = pLeaf->uEdx; return true; } return false; } #endif /* IN_VBOX_CPU_REPORT */ /** * Inserts a CPU ID leaf, replacing any existing ones. * * When inserting a simple leaf where we already got a series of sub-leaves with * the same leaf number (eax), the simple leaf will replace the whole series. * * When pVM is NULL, this ASSUMES that the leaves array is still on the normal * host-context heap and has only been allocated/reallocated by the * cpumCpuIdEnsureSpace function. * * @returns VBox status code. * @param pVM The cross context VM structure. If NULL, use * the process heap, otherwise the VM's hyper heap. * @param ppaLeaves Pointer to the pointer to the array of sorted * CPUID leaves and sub-leaves. Must be NULL if using * the hyper heap. * @param pcLeaves Where we keep the leaf count for *ppaLeaves. Must * be NULL if using the hyper heap. * @param pNewLeaf Pointer to the data of the new leaf we're about to * insert. */ static int cpumR3CpuIdInsert(PVM pVM, PCPUMCPUIDLEAF *ppaLeaves, uint32_t *pcLeaves, PCPUMCPUIDLEAF pNewLeaf) { /* * Validate input parameters if we are using the hyper heap and use the VM's CPUID arrays. */ if (pVM) { AssertReturn(!ppaLeaves, VERR_INVALID_PARAMETER); AssertReturn(!pcLeaves, VERR_INVALID_PARAMETER); AssertReturn(pVM->cpum.s.GuestInfo.paCpuIdLeavesR3 == pVM->cpum.s.GuestInfo.aCpuIdLeaves, VERR_INVALID_PARAMETER); ppaLeaves = &pVM->cpum.s.GuestInfo.paCpuIdLeavesR3; pcLeaves = &pVM->cpum.s.GuestInfo.cCpuIdLeaves; } PCPUMCPUIDLEAF paLeaves = *ppaLeaves; uint32_t cLeaves = *pcLeaves; /* * Validate the new leaf a little. */ AssertLogRelMsgReturn(!(pNewLeaf->fFlags & ~CPUMCPUIDLEAF_F_VALID_MASK), ("%#x/%#x: %#x", pNewLeaf->uLeaf, pNewLeaf->uSubLeaf, pNewLeaf->fFlags), VERR_INVALID_FLAGS); AssertLogRelMsgReturn(pNewLeaf->fSubLeafMask != 0 || pNewLeaf->uSubLeaf == 0, ("%#x/%#x: %#x", pNewLeaf->uLeaf, pNewLeaf->uSubLeaf, pNewLeaf->fSubLeafMask), VERR_INVALID_PARAMETER); AssertLogRelMsgReturn(RT_IS_POWER_OF_TWO(pNewLeaf->fSubLeafMask + 1), ("%#x/%#x: %#x", pNewLeaf->uLeaf, pNewLeaf->uSubLeaf, pNewLeaf->fSubLeafMask), VERR_INVALID_PARAMETER); AssertLogRelMsgReturn((pNewLeaf->fSubLeafMask & pNewLeaf->uSubLeaf) == pNewLeaf->uSubLeaf, ("%#x/%#x: %#x", pNewLeaf->uLeaf, pNewLeaf->uSubLeaf, pNewLeaf->fSubLeafMask), VERR_INVALID_PARAMETER); /* * Find insertion point. The lazy bird uses the same excuse as in * cpumCpuIdGetLeaf(), but optimizes for linear insertion (saved state). */ uint32_t i; if ( cLeaves > 0 && paLeaves[cLeaves - 1].uLeaf < pNewLeaf->uLeaf) { /* Add at end. */ i = cLeaves; } else if ( cLeaves > 0 && paLeaves[cLeaves - 1].uLeaf == pNewLeaf->uLeaf) { /* Either replacing the last leaf or dealing with sub-leaves. Spool back to the first sub-leaf to pretend we did the linear search. */ i = cLeaves - 1; while ( i > 0 && paLeaves[i - 1].uLeaf == pNewLeaf->uLeaf) i--; } else { /* Linear search from the start. */ i = 0; while ( i < cLeaves && paLeaves[i].uLeaf < pNewLeaf->uLeaf) i++; } if ( i < cLeaves && paLeaves[i].uLeaf == pNewLeaf->uLeaf) { if (paLeaves[i].fSubLeafMask != pNewLeaf->fSubLeafMask) { /* * The sub-leaf mask differs, replace all existing leaves with the * same leaf number. */ uint32_t c = 1; while ( i + c < cLeaves && paLeaves[i + c].uLeaf == pNewLeaf->uLeaf) c++; if (c > 1 && i + c < cLeaves) { memmove(&paLeaves[i + c], &paLeaves[i + 1], (cLeaves - i - c) * sizeof(paLeaves[0])); *pcLeaves = cLeaves -= c - 1; } paLeaves[i] = *pNewLeaf; #ifdef VBOX_STRICT cpumCpuIdAssertOrder(*ppaLeaves, *pcLeaves); #endif return VINF_SUCCESS; } /* Find sub-leaf insertion point. */ while ( i < cLeaves && paLeaves[i].uSubLeaf < pNewLeaf->uSubLeaf && paLeaves[i].uLeaf == pNewLeaf->uLeaf) i++; /* * If we've got an exactly matching leaf, replace it. */ if ( i < cLeaves && paLeaves[i].uLeaf == pNewLeaf->uLeaf && paLeaves[i].uSubLeaf == pNewLeaf->uSubLeaf) { paLeaves[i] = *pNewLeaf; #ifdef VBOX_STRICT cpumCpuIdAssertOrder(*ppaLeaves, *pcLeaves); #endif return VINF_SUCCESS; } } /* * Adding a new leaf at 'i'. */ AssertLogRelReturn(cLeaves < CPUM_CPUID_MAX_LEAVES, VERR_TOO_MANY_CPUID_LEAVES); paLeaves = cpumCpuIdEnsureSpace(pVM, ppaLeaves, cLeaves); if (!paLeaves) return VERR_NO_MEMORY; if (i < cLeaves) memmove(&paLeaves[i + 1], &paLeaves[i], (cLeaves - i) * sizeof(paLeaves[0])); *pcLeaves += 1; paLeaves[i] = *pNewLeaf; #ifdef VBOX_STRICT cpumCpuIdAssertOrder(*ppaLeaves, *pcLeaves); #endif return VINF_SUCCESS; } #ifndef IN_VBOX_CPU_REPORT /** * Removes a range of CPUID leaves. * * This will not reallocate the array. * * @param paLeaves The array of sorted CPUID leaves and sub-leaves. * @param pcLeaves Where we keep the leaf count for @a paLeaves. * @param uFirst The first leaf. * @param uLast The last leaf. */ static void cpumR3CpuIdRemoveRange(PCPUMCPUIDLEAF paLeaves, uint32_t *pcLeaves, uint32_t uFirst, uint32_t uLast) { uint32_t cLeaves = *pcLeaves; Assert(uFirst <= uLast); /* * Find the first one. */ uint32_t iFirst = 0; while ( iFirst < cLeaves && paLeaves[iFirst].uLeaf < uFirst) iFirst++; /* * Find the end (last + 1). */ uint32_t iEnd = iFirst; while ( iEnd < cLeaves && paLeaves[iEnd].uLeaf <= uLast) iEnd++; /* * Adjust the array if anything needs removing. */ if (iFirst < iEnd) { if (iEnd < cLeaves) memmove(&paLeaves[iFirst], &paLeaves[iEnd], (cLeaves - iEnd) * sizeof(paLeaves[0])); *pcLeaves = cLeaves -= (iEnd - iFirst); } # ifdef VBOX_STRICT cpumCpuIdAssertOrder(paLeaves, *pcLeaves); # endif } #endif /* IN_VBOX_CPU_REPORT */ /** * Gets a CPU ID leaf. * * @returns VBox status code. * @param pVM The cross context VM structure. * @param pLeaf Where to store the found leaf. * @param uLeaf The leaf to locate. * @param uSubLeaf The subleaf to locate. Pass 0 if no sub-leaves. */ VMMR3DECL(int) CPUMR3CpuIdGetLeaf(PVM pVM, PCPUMCPUIDLEAF pLeaf, uint32_t uLeaf, uint32_t uSubLeaf) { PCPUMCPUIDLEAF pcLeaf = cpumCpuIdGetLeafInt(pVM->cpum.s.GuestInfo.paCpuIdLeavesR3, pVM->cpum.s.GuestInfo.cCpuIdLeaves, uLeaf, uSubLeaf); if (pcLeaf) { memcpy(pLeaf, pcLeaf, sizeof(*pLeaf)); return VINF_SUCCESS; } return VERR_NOT_FOUND; } /** * Gets all the leaves. * * This only works after the CPUID leaves have been initialized. The interface * is intended for NEM and configuring CPUID leaves for the native hypervisor. * * @returns Pointer to the array of leaves. NULL on failure. * @param pVM The cross context VM structure. * @param pcLeaves Where to return the number of leaves. */ VMMR3_INT_DECL(PCCPUMCPUIDLEAF) CPUMR3CpuIdGetPtr(PVM pVM, uint32_t *pcLeaves) { *pcLeaves = pVM->cpum.s.GuestInfo.cCpuIdLeaves; return pVM->cpum.s.GuestInfo.paCpuIdLeavesR3; } /** * Inserts a CPU ID leaf, replacing any existing ones. * * @returns VBox status code. * @param pVM The cross context VM structure. * @param pNewLeaf Pointer to the leaf being inserted. */ VMMR3DECL(int) CPUMR3CpuIdInsert(PVM pVM, PCPUMCPUIDLEAF pNewLeaf) { /* * Validate parameters. */ AssertReturn(pVM, VERR_INVALID_PARAMETER); AssertReturn(pNewLeaf, VERR_INVALID_PARAMETER); /* * Disallow replacing CPU ID leaves that this API currently cannot manage. * These leaves have dependencies on saved-states, see PATMCpuidReplacement(). * If you want to modify these leaves, use CPUMSetGuestCpuIdFeature(). */ if ( pNewLeaf->uLeaf == UINT32_C(0x00000000) /* Standard */ || pNewLeaf->uLeaf == UINT32_C(0x00000001) || pNewLeaf->uLeaf == UINT32_C(0x80000000) /* Extended */ || pNewLeaf->uLeaf == UINT32_C(0x80000001) || pNewLeaf->uLeaf == UINT32_C(0xc0000000) /* Centaur */ || pNewLeaf->uLeaf == UINT32_C(0xc0000001) ) { return VERR_NOT_SUPPORTED; } return cpumR3CpuIdInsert(pVM, NULL /* ppaLeaves */, NULL /* pcLeaves */, pNewLeaf); } #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) /** * Determines the method the CPU uses to handle unknown CPUID leaves. * * @returns VBox status code. * @param penmUnknownMethod Where to return the method. * @param pDefUnknown Where to return default unknown values. This * will be set, even if the resulting method * doesn't actually needs it. */ VMMR3DECL(int) CPUMR3CpuIdDetectUnknownLeafMethod(PCPUMUNKNOWNCPUID penmUnknownMethod, PCPUMCPUID pDefUnknown) { uint32_t uLastStd = ASMCpuId_EAX(0); uint32_t uLastExt = ASMCpuId_EAX(0x80000000); if (!RTX86IsValidExtRange(uLastExt)) uLastExt = 0x80000000; uint32_t auChecks[] = { uLastStd + 1, uLastStd + 5, uLastStd + 8, uLastStd + 32, uLastStd + 251, uLastExt + 1, uLastExt + 8, uLastExt + 15, uLastExt + 63, uLastExt + 255, 0x7fbbffcc, 0x833f7872, 0xefff2353, 0x35779456, 0x1ef6d33e, }; static const uint32_t s_auValues[] = { 0xa95d2156, 0x00000001, 0x00000002, 0x00000008, 0x00000000, 0x55773399, 0x93401769, 0x12039587, }; /* * Simple method, all zeros. */ *penmUnknownMethod = CPUMUNKNOWNCPUID_DEFAULTS; pDefUnknown->uEax = 0; pDefUnknown->uEbx = 0; pDefUnknown->uEcx = 0; pDefUnknown->uEdx = 0; /* * Intel has been observed returning the last standard leaf. */ uint32_t auLast[4]; ASMCpuIdExSlow(uLastStd, 0, 0, 0, &auLast[0], &auLast[1], &auLast[2], &auLast[3]); uint32_t cChecks = RT_ELEMENTS(auChecks); while (cChecks > 0) { uint32_t auCur[4]; ASMCpuIdExSlow(auChecks[cChecks - 1], 0, 0, 0, &auCur[0], &auCur[1], &auCur[2], &auCur[3]); if (memcmp(auCur, auLast, sizeof(auCur))) break; cChecks--; } if (cChecks == 0) { /* Now, what happens when the input changes? Esp. ECX. */ uint32_t cTotal = 0; uint32_t cSame = 0; uint32_t cLastWithEcx = 0; uint32_t cNeither = 0; uint32_t cValues = RT_ELEMENTS(s_auValues); while (cValues > 0) { uint32_t uValue = s_auValues[cValues - 1]; uint32_t auLastWithEcx[4]; ASMCpuIdExSlow(uLastStd, uValue, uValue, uValue, &auLastWithEcx[0], &auLastWithEcx[1], &auLastWithEcx[2], &auLastWithEcx[3]); cChecks = RT_ELEMENTS(auChecks); while (cChecks > 0) { uint32_t auCur[4]; ASMCpuIdExSlow(auChecks[cChecks - 1], uValue, uValue, uValue, &auCur[0], &auCur[1], &auCur[2], &auCur[3]); if (!memcmp(auCur, auLast, sizeof(auCur))) { cSame++; if (!memcmp(auCur, auLastWithEcx, sizeof(auCur))) cLastWithEcx++; } else if (!memcmp(auCur, auLastWithEcx, sizeof(auCur))) cLastWithEcx++; else cNeither++; cTotal++; cChecks--; } cValues--; } Log(("CPUM: cNeither=%d cSame=%d cLastWithEcx=%d cTotal=%d\n", cNeither, cSame, cLastWithEcx, cTotal)); if (cSame == cTotal) *penmUnknownMethod = CPUMUNKNOWNCPUID_LAST_STD_LEAF; else if (cLastWithEcx == cTotal) *penmUnknownMethod = CPUMUNKNOWNCPUID_LAST_STD_LEAF_WITH_ECX; else *penmUnknownMethod = CPUMUNKNOWNCPUID_LAST_STD_LEAF; pDefUnknown->uEax = auLast[0]; pDefUnknown->uEbx = auLast[1]; pDefUnknown->uEcx = auLast[2]; pDefUnknown->uEdx = auLast[3]; return VINF_SUCCESS; } /* * Unchanged register values? */ cChecks = RT_ELEMENTS(auChecks); while (cChecks > 0) { uint32_t const uLeaf = auChecks[cChecks - 1]; uint32_t cValues = RT_ELEMENTS(s_auValues); while (cValues > 0) { uint32_t uValue = s_auValues[cValues - 1]; uint32_t auCur[4]; ASMCpuIdExSlow(uLeaf, uValue, uValue, uValue, &auCur[0], &auCur[1], &auCur[2], &auCur[3]); if ( auCur[0] != uLeaf || auCur[1] != uValue || auCur[2] != uValue || auCur[3] != uValue) break; cValues--; } if (cValues != 0) break; cChecks--; } if (cChecks == 0) { *penmUnknownMethod = CPUMUNKNOWNCPUID_PASSTHRU; return VINF_SUCCESS; } /* * Just go with the simple method. */ return VINF_SUCCESS; } #endif /* RT_ARCH_X86 || RT_ARCH_AMD64 */ /** * Translates a unknow CPUID leaf method into the constant name (sans prefix). * * @returns Read only name string. * @param enmUnknownMethod The method to translate. */ VMMR3DECL(const char *) CPUMR3CpuIdUnknownLeafMethodName(CPUMUNKNOWNCPUID enmUnknownMethod) { switch (enmUnknownMethod) { case CPUMUNKNOWNCPUID_DEFAULTS: return "DEFAULTS"; case CPUMUNKNOWNCPUID_LAST_STD_LEAF: return "LAST_STD_LEAF"; case CPUMUNKNOWNCPUID_LAST_STD_LEAF_WITH_ECX: return "LAST_STD_LEAF_WITH_ECX"; case CPUMUNKNOWNCPUID_PASSTHRU: return "PASSTHRU"; case CPUMUNKNOWNCPUID_INVALID: case CPUMUNKNOWNCPUID_END: case CPUMUNKNOWNCPUID_32BIT_HACK: break; } return "Invalid-unknown-CPUID-method"; } /* * * Init related code. * Init related code. * Init related code. * * */ #ifndef IN_VBOX_CPU_REPORT /** * Gets an exactly matching leaf + sub-leaf in the CPUID leaf array. * * This ignores the fSubLeafMask. * * @returns Pointer to the matching leaf, or NULL if not found. * @param pCpum The CPUM instance data. * @param uLeaf The leaf to locate. * @param uSubLeaf The subleaf to locate. */ static PCPUMCPUIDLEAF cpumR3CpuIdGetExactLeaf(PCPUM pCpum, uint32_t uLeaf, uint32_t uSubLeaf) { uint64_t uNeedle = RT_MAKE_U64(uSubLeaf, uLeaf); PCPUMCPUIDLEAF paLeaves = pCpum->GuestInfo.paCpuIdLeavesR3; uint32_t iEnd = pCpum->GuestInfo.cCpuIdLeaves; if (iEnd) { uint32_t iBegin = 0; for (;;) { uint32_t const i = (iEnd - iBegin) / 2 + iBegin; uint64_t const uCur = RT_MAKE_U64(paLeaves[i].uSubLeaf, paLeaves[i].uLeaf); if (uNeedle < uCur) { if (i > iBegin) iEnd = i; else break; } else if (uNeedle > uCur) { if (i + 1 < iEnd) iBegin = i + 1; else break; } else return &paLeaves[i]; } } return NULL; } /** * Loads MSR range overrides. * * This must be called before the MSR ranges are moved from the normal heap to * the hyper heap! * * @returns VBox status code (VMSetError called). * @param pVM The cross context VM structure. * @param pMsrNode The CFGM node with the MSR overrides. */ static int cpumR3LoadMsrOverrides(PVM pVM, PCFGMNODE pMsrNode) { for (PCFGMNODE pNode = CFGMR3GetFirstChild(pMsrNode); pNode; pNode = CFGMR3GetNextChild(pNode)) { /* * Assemble a valid MSR range. */ CPUMMSRRANGE MsrRange; MsrRange.offCpumCpu = 0; MsrRange.fReserved = 0; int rc = CFGMR3GetName(pNode, MsrRange.szName, sizeof(MsrRange.szName)); if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Invalid MSR entry (name is probably too long): %Rrc\n", rc); rc = CFGMR3QueryU32(pNode, "First", &MsrRange.uFirst); if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Invalid MSR entry '%s': Error querying mandatory 'First' value: %Rrc\n", MsrRange.szName, rc); rc = CFGMR3QueryU32Def(pNode, "Last", &MsrRange.uLast, MsrRange.uFirst); if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Invalid MSR entry '%s': Error querying 'Last' value: %Rrc\n", MsrRange.szName, rc); char szType[32]; rc = CFGMR3QueryStringDef(pNode, "Type", szType, sizeof(szType), "FixedValue"); if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Invalid MSR entry '%s': Error querying 'Type' value: %Rrc\n", MsrRange.szName, rc); if (!RTStrICmp(szType, "FixedValue")) { MsrRange.enmRdFn = kCpumMsrRdFn_FixedValue; MsrRange.enmWrFn = kCpumMsrWrFn_IgnoreWrite; rc = CFGMR3QueryU64Def(pNode, "Value", &MsrRange.uValue, 0); if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Invalid MSR entry '%s': Error querying 'Value' value: %Rrc\n", MsrRange.szName, rc); rc = CFGMR3QueryU64Def(pNode, "WrGpMask", &MsrRange.fWrGpMask, 0); if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Invalid MSR entry '%s': Error querying 'WrGpMask' value: %Rrc\n", MsrRange.szName, rc); rc = CFGMR3QueryU64Def(pNode, "WrIgnMask", &MsrRange.fWrIgnMask, 0); if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Invalid MSR entry '%s': Error querying 'WrIgnMask' value: %Rrc\n", MsrRange.szName, rc); } else return VMSetError(pVM, VERR_INVALID_PARAMETER, RT_SRC_POS, "Invalid MSR entry '%s': Unknown type '%s'\n", MsrRange.szName, szType); /* * Insert the range into the table (replaces/splits/shrinks existing * MSR ranges). */ rc = cpumR3MsrRangesInsert(NULL /* pVM */, &pVM->cpum.s.GuestInfo.paMsrRangesR3, &pVM->cpum.s.GuestInfo.cMsrRanges, &MsrRange); if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Error adding MSR entry '%s': %Rrc\n", MsrRange.szName, rc); } return VINF_SUCCESS; } /** * Loads CPUID leaf overrides. * * This must be called before the CPUID leaves are moved from the normal * heap to the hyper heap! * * @returns VBox status code (VMSetError called). * @param pVM The cross context VM structure. * @param pParentNode The CFGM node with the CPUID leaves. * @param pszLabel How to label the overrides we're loading. */ static int cpumR3LoadCpuIdOverrides(PVM pVM, PCFGMNODE pParentNode, const char *pszLabel) { for (PCFGMNODE pNode = CFGMR3GetFirstChild(pParentNode); pNode; pNode = CFGMR3GetNextChild(pNode)) { /* * Get the leaf and subleaf numbers. */ char szName[128]; int rc = CFGMR3GetName(pNode, szName, sizeof(szName)); if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Invalid %s entry (name is probably too long): %Rrc\n", pszLabel, rc); /* The leaf number is either specified directly or thru the node name. */ uint32_t uLeaf; rc = CFGMR3QueryU32(pNode, "Leaf", &uLeaf); if (rc == VERR_CFGM_VALUE_NOT_FOUND) { rc = RTStrToUInt32Full(szName, 16, &uLeaf); if (rc != VINF_SUCCESS) return VMSetError(pVM, VERR_INVALID_NAME, RT_SRC_POS, "Invalid %s entry: Invalid leaf number: '%s' \n", pszLabel, szName); } else if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Invalid %s entry '%s': Error querying 'Leaf' value: %Rrc\n", pszLabel, szName, rc); uint32_t uSubLeaf; rc = CFGMR3QueryU32Def(pNode, "SubLeaf", &uSubLeaf, 0); if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Invalid %s entry '%s': Error querying 'SubLeaf' value: %Rrc\n", pszLabel, szName, rc); uint32_t fSubLeafMask; rc = CFGMR3QueryU32Def(pNode, "SubLeafMask", &fSubLeafMask, 0); if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Invalid %s entry '%s': Error querying 'SubLeafMask' value: %Rrc\n", pszLabel, szName, rc); /* * Look up the specified leaf, since the output register values * defaults to any existing values. This allows overriding a single * register, without needing to know the other values. */ PCCPUMCPUIDLEAF pLeaf = cpumR3CpuIdGetExactLeaf(&pVM->cpum.s, uLeaf, uSubLeaf); CPUMCPUIDLEAF Leaf; if (pLeaf) Leaf = *pLeaf; else RT_ZERO(Leaf); Leaf.uLeaf = uLeaf; Leaf.uSubLeaf = uSubLeaf; Leaf.fSubLeafMask = fSubLeafMask; rc = CFGMR3QueryU32Def(pNode, "eax", &Leaf.uEax, Leaf.uEax); if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Invalid %s entry '%s': Error querying 'eax' value: %Rrc\n", pszLabel, szName, rc); rc = CFGMR3QueryU32Def(pNode, "ebx", &Leaf.uEbx, Leaf.uEbx); if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Invalid %s entry '%s': Error querying 'ebx' value: %Rrc\n", pszLabel, szName, rc); rc = CFGMR3QueryU32Def(pNode, "ecx", &Leaf.uEcx, Leaf.uEcx); if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Invalid %s entry '%s': Error querying 'ecx' value: %Rrc\n", pszLabel, szName, rc); rc = CFGMR3QueryU32Def(pNode, "edx", &Leaf.uEdx, Leaf.uEdx); if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Invalid %s entry '%s': Error querying 'edx' value: %Rrc\n", pszLabel, szName, rc); /* * Insert the leaf into the table (replaces existing ones). */ rc = cpumR3CpuIdInsert(NULL /* pVM */, &pVM->cpum.s.GuestInfo.paCpuIdLeavesR3, &pVM->cpum.s.GuestInfo.cCpuIdLeaves, &Leaf); if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Error adding CPUID leaf entry '%s': %Rrc\n", szName, rc); } return VINF_SUCCESS; } /** * Fetches overrides for a CPUID leaf. * * @returns VBox status code. * @param pLeaf The leaf to load the overrides into. * @param pCfgNode The CFGM node containing the overrides * (/CPUM/HostCPUID/ or /CPUM/CPUID/). * @param iLeaf The CPUID leaf number. */ static int cpumR3CpuIdFetchLeafOverride(PCPUMCPUID pLeaf, PCFGMNODE pCfgNode, uint32_t iLeaf) { PCFGMNODE pLeafNode = CFGMR3GetChildF(pCfgNode, "%RX32", iLeaf); if (pLeafNode) { uint32_t u32; int rc = CFGMR3QueryU32(pLeafNode, "eax", &u32); if (RT_SUCCESS(rc)) pLeaf->uEax = u32; else AssertReturn(rc == VERR_CFGM_VALUE_NOT_FOUND, rc); rc = CFGMR3QueryU32(pLeafNode, "ebx", &u32); if (RT_SUCCESS(rc)) pLeaf->uEbx = u32; else AssertReturn(rc == VERR_CFGM_VALUE_NOT_FOUND, rc); rc = CFGMR3QueryU32(pLeafNode, "ecx", &u32); if (RT_SUCCESS(rc)) pLeaf->uEcx = u32; else AssertReturn(rc == VERR_CFGM_VALUE_NOT_FOUND, rc); rc = CFGMR3QueryU32(pLeafNode, "edx", &u32); if (RT_SUCCESS(rc)) pLeaf->uEdx = u32; else AssertReturn(rc == VERR_CFGM_VALUE_NOT_FOUND, rc); } return VINF_SUCCESS; } /** * Load the overrides for a set of CPUID leaves. * * @returns VBox status code. * @param paLeaves The leaf array. * @param cLeaves The number of leaves. * @param uStart The start leaf number. * @param pCfgNode The CFGM node containing the overrides * (/CPUM/HostCPUID/ or /CPUM/CPUID/). */ static int cpumR3CpuIdInitLoadOverrideSet(uint32_t uStart, PCPUMCPUID paLeaves, uint32_t cLeaves, PCFGMNODE pCfgNode) { for (uint32_t i = 0; i < cLeaves; i++) { int rc = cpumR3CpuIdFetchLeafOverride(&paLeaves[i], pCfgNode, uStart + i); if (RT_FAILURE(rc)) return rc; } return VINF_SUCCESS; } /** * Installs the CPUID leaves and explods the data into structures like * GuestFeatures and CPUMCTX::aoffXState. * * @returns VBox status code. * @param pVM The cross context VM structure. * @param pCpum The CPUM part of @a VM. * @param paLeaves The leaves. These will be copied (but not freed). * @param cLeaves The number of leaves. * @param pMsrs The MSRs. */ static int cpumR3CpuIdInstallAndExplodeLeaves(PVM pVM, PCPUM pCpum, PCPUMCPUIDLEAF paLeaves, uint32_t cLeaves, PCCPUMMSRS pMsrs) { # ifdef VBOX_STRICT cpumCpuIdAssertOrder(paLeaves, cLeaves); # endif /* * Install the CPUID information. */ AssertLogRelMsgReturn(cLeaves <= RT_ELEMENTS(pVM->cpum.s.GuestInfo.aCpuIdLeaves), ("cLeaves=%u - max %u\n", cLeaves, RT_ELEMENTS(pVM->cpum.s.GuestInfo.aCpuIdLeaves)), VERR_CPUM_IPE_1); /** @todo better status! */ if (paLeaves != pCpum->GuestInfo.aCpuIdLeaves) memcpy(pCpum->GuestInfo.aCpuIdLeaves, paLeaves, cLeaves * sizeof(paLeaves[0])); pCpum->GuestInfo.paCpuIdLeavesR3 = pCpum->GuestInfo.aCpuIdLeaves; pCpum->GuestInfo.cCpuIdLeaves = cLeaves; /* * Update the default CPUID leaf if necessary. */ switch (pCpum->GuestInfo.enmUnknownCpuIdMethod) { case CPUMUNKNOWNCPUID_LAST_STD_LEAF: case CPUMUNKNOWNCPUID_LAST_STD_LEAF_WITH_ECX: { /* We don't use CPUID(0).eax here because of the NT hack that only changes that value without actually removing any leaves. */ uint32_t i = 0; if ( pCpum->GuestInfo.cCpuIdLeaves > 0 && pCpum->GuestInfo.paCpuIdLeavesR3[0].uLeaf <= UINT32_C(0xff)) { while ( i + 1 < pCpum->GuestInfo.cCpuIdLeaves && pCpum->GuestInfo.paCpuIdLeavesR3[i + 1].uLeaf <= UINT32_C(0xff)) i++; pCpum->GuestInfo.DefCpuId.uEax = pCpum->GuestInfo.paCpuIdLeavesR3[i].uEax; pCpum->GuestInfo.DefCpuId.uEbx = pCpum->GuestInfo.paCpuIdLeavesR3[i].uEbx; pCpum->GuestInfo.DefCpuId.uEcx = pCpum->GuestInfo.paCpuIdLeavesR3[i].uEcx; pCpum->GuestInfo.DefCpuId.uEdx = pCpum->GuestInfo.paCpuIdLeavesR3[i].uEdx; } break; } default: break; } /* * Explode the guest CPU features. */ int rc = cpumCpuIdExplodeFeaturesX86(pCpum->GuestInfo.paCpuIdLeavesR3, pCpum->GuestInfo.cCpuIdLeaves, pMsrs, &pCpum->GuestFeatures); AssertLogRelRCReturn(rc, rc); /* * Adjust the scalable bus frequency according to the CPUID information * we're now using. */ if (CPUMMICROARCH_IS_INTEL_CORE7(pVM->cpum.s.GuestFeatures.enmMicroarch)) pCpum->GuestInfo.uScalableBusFreq = pCpum->GuestFeatures.enmMicroarch >= kCpumMicroarch_Intel_Core7_SandyBridge ? UINT64_C(100000000) /* 100MHz */ : UINT64_C(133333333); /* 133MHz */ /* * Populate the legacy arrays. Currently used for everything, later only * for patch manager. */ struct { PCPUMCPUID paCpuIds; uint32_t cCpuIds, uBase; } aOldRanges[] = { { pCpum->aGuestCpuIdPatmStd, RT_ELEMENTS(pCpum->aGuestCpuIdPatmStd), 0x00000000 }, { pCpum->aGuestCpuIdPatmExt, RT_ELEMENTS(pCpum->aGuestCpuIdPatmExt), 0x80000000 }, { pCpum->aGuestCpuIdPatmCentaur, RT_ELEMENTS(pCpum->aGuestCpuIdPatmCentaur), 0xc0000000 }, }; for (uint32_t i = 0; i < RT_ELEMENTS(aOldRanges); i++) { uint32_t cLeft = aOldRanges[i].cCpuIds; uint32_t uLeaf = aOldRanges[i].uBase + cLeft; PCPUMCPUID pLegacyLeaf = &aOldRanges[i].paCpuIds[cLeft]; while (cLeft-- > 0) { uLeaf--; pLegacyLeaf--; PCCPUMCPUIDLEAF pLeaf = cpumR3CpuIdGetExactLeaf(pCpum, uLeaf, 0 /* uSubLeaf */); if (pLeaf) { pLegacyLeaf->uEax = pLeaf->uEax; pLegacyLeaf->uEbx = pLeaf->uEbx; pLegacyLeaf->uEcx = pLeaf->uEcx; pLegacyLeaf->uEdx = pLeaf->uEdx; } else *pLegacyLeaf = pCpum->GuestInfo.DefCpuId; } } /* * Configure XSAVE offsets according to the CPUID info and set the feature flags. */ PVMCPU pVCpu0 = pVM->apCpusR3[0]; AssertCompile(sizeof(pVCpu0->cpum.s.Guest.abXState) == CPUM_MAX_XSAVE_AREA_SIZE); memset(&pVCpu0->cpum.s.Guest.aoffXState[0], 0xff, sizeof(pVCpu0->cpum.s.Guest.aoffXState)); pVCpu0->cpum.s.Guest.aoffXState[XSAVE_C_X87_BIT] = 0; pVCpu0->cpum.s.Guest.aoffXState[XSAVE_C_SSE_BIT] = 0; for (uint32_t iComponent = XSAVE_C_SSE_BIT + 1; iComponent < 63; iComponent++) if (pCpum->fXStateGuestMask & RT_BIT_64(iComponent)) { PCPUMCPUIDLEAF pSubLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 0xd, iComponent); AssertLogRelMsgReturn(pSubLeaf, ("iComponent=%#x\n", iComponent), VERR_CPUM_IPE_1); AssertLogRelMsgReturn(pSubLeaf->fSubLeafMask >= iComponent, ("iComponent=%#x\n", iComponent), VERR_CPUM_IPE_1); AssertLogRelMsgReturn( pSubLeaf->uEax > 0 && pSubLeaf->uEbx >= CPUM_MIN_XSAVE_AREA_SIZE && pSubLeaf->uEax <= pCpum->GuestFeatures.cbMaxExtendedState && pSubLeaf->uEbx <= pCpum->GuestFeatures.cbMaxExtendedState && pSubLeaf->uEbx + pSubLeaf->uEax <= pCpum->GuestFeatures.cbMaxExtendedState, ("iComponent=%#x eax=%#x ebx=%#x cbMax=%#x\n", iComponent, pSubLeaf->uEax, pSubLeaf->uEbx, pCpum->GuestFeatures.cbMaxExtendedState), VERR_CPUM_IPE_1); pVCpu0->cpum.s.Guest.aoffXState[iComponent] = pSubLeaf->uEbx; } /* Copy the CPU #0 data to the other CPUs. */ for (VMCPUID idCpu = 1; idCpu < pVM->cCpus; idCpu++) { PVMCPU pVCpu = pVM->apCpusR3[idCpu]; memcpy(&pVCpu->cpum.s.Guest.aoffXState[0], &pVCpu0->cpum.s.Guest.aoffXState[0], sizeof(pVCpu0->cpum.s.Guest.aoffXState)); } return VINF_SUCCESS; } /** @name Instruction Set Extension Options * @{ */ /** Configuration option type (extended boolean, really). */ typedef uint8_t CPUMISAEXTCFG; /** Always disable the extension. */ #define CPUMISAEXTCFG_DISABLED false /** Enable the extension if it's supported by the host CPU. */ #define CPUMISAEXTCFG_ENABLED_SUPPORTED true /** Enable the extension if it's supported by the host CPU, but don't let * the portable CPUID feature disable it. */ #define CPUMISAEXTCFG_ENABLED_PORTABLE UINT8_C(127) /** Always enable the extension. */ #define CPUMISAEXTCFG_ENABLED_ALWAYS UINT8_C(255) /** @} */ /** * CPUID Configuration (from CFGM). * * @remarks The members aren't document since we would only be duplicating the * \@cfgm entries in cpumR3CpuIdReadConfig. */ typedef struct CPUMCPUIDCONFIG { bool fNt4LeafLimit; bool fInvariantTsc; bool fForceVme; bool fNestedHWVirt; CPUMISAEXTCFG enmCmpXchg16b; CPUMISAEXTCFG enmMonitor; CPUMISAEXTCFG enmMWaitExtensions; CPUMISAEXTCFG enmSse41; CPUMISAEXTCFG enmSse42; CPUMISAEXTCFG enmAvx; CPUMISAEXTCFG enmAvx2; CPUMISAEXTCFG enmXSave; CPUMISAEXTCFG enmAesNi; CPUMISAEXTCFG enmPClMul; CPUMISAEXTCFG enmPopCnt; CPUMISAEXTCFG enmMovBe; CPUMISAEXTCFG enmRdRand; CPUMISAEXTCFG enmRdSeed; CPUMISAEXTCFG enmCLFlushOpt; CPUMISAEXTCFG enmFsGsBase; CPUMISAEXTCFG enmPcid; CPUMISAEXTCFG enmInvpcid; CPUMISAEXTCFG enmFlushCmdMsr; CPUMISAEXTCFG enmMdsClear; CPUMISAEXTCFG enmArchCapMsr; CPUMISAEXTCFG enmAbm; CPUMISAEXTCFG enmSse4A; CPUMISAEXTCFG enmMisAlnSse; CPUMISAEXTCFG enm3dNowPrf; CPUMISAEXTCFG enmAmdExtMmx; uint32_t uMaxStdLeaf; uint32_t uMaxExtLeaf; uint32_t uMaxCentaurLeaf; uint32_t uMaxIntelFamilyModelStep; char szCpuName[128]; } CPUMCPUIDCONFIG; /** Pointer to CPUID config (from CFGM). */ typedef CPUMCPUIDCONFIG *PCPUMCPUIDCONFIG; /** * Mini CPU selection support for making Mac OS X happy. * * Executes the /CPUM/MaxIntelFamilyModelStep config. * * @param pCpum The CPUM instance data. * @param pConfig The CPUID configuration we've read from CFGM. */ static void cpumR3CpuIdLimitIntelFamModStep(PCPUM pCpum, PCPUMCPUIDCONFIG pConfig) { if (pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_INTEL) { PCPUMCPUIDLEAF pStdFeatureLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 1, 0); uint32_t uCurIntelFamilyModelStep = RT_MAKE_U32_FROM_U8(RTX86GetCpuStepping(pStdFeatureLeaf->uEax), RTX86GetCpuModelIntel(pStdFeatureLeaf->uEax), RTX86GetCpuFamily(pStdFeatureLeaf->uEax), 0); uint32_t uMaxIntelFamilyModelStep = pConfig->uMaxIntelFamilyModelStep; if (pConfig->uMaxIntelFamilyModelStep < uCurIntelFamilyModelStep) { uint32_t uNew = pStdFeatureLeaf->uEax & UINT32_C(0xf0003000); uNew |= RT_BYTE1(uMaxIntelFamilyModelStep) & 0xf; /* stepping */ uNew |= (RT_BYTE2(uMaxIntelFamilyModelStep) & 0xf) << 4; /* 4 low model bits */ uNew |= (RT_BYTE2(uMaxIntelFamilyModelStep) >> 4) << 16; /* 4 high model bits */ uNew |= (RT_BYTE3(uMaxIntelFamilyModelStep) & 0xf) << 8; /* 4 low family bits */ if (RT_BYTE3(uMaxIntelFamilyModelStep) > 0xf) /* 8 high family bits, using intel's suggested calculation. */ uNew |= ( (RT_BYTE3(uMaxIntelFamilyModelStep) - (RT_BYTE3(uMaxIntelFamilyModelStep) & 0xf)) & 0xff ) << 20; LogRel(("CPU: CPUID(0).EAX %#x -> %#x (uMaxIntelFamilyModelStep=%#x, uCurIntelFamilyModelStep=%#x\n", pStdFeatureLeaf->uEax, uNew, uMaxIntelFamilyModelStep, uCurIntelFamilyModelStep)); pStdFeatureLeaf->uEax = uNew; } } } /** * Limit it the number of entries, zapping the remainder. * * The limits are masking off stuff about power saving and similar, this * is perhaps a bit crudely done as there is probably some relatively harmless * info too in these leaves (like words about having a constant TSC). * * @param pCpum The CPUM instance data. * @param pConfig The CPUID configuration we've read from CFGM. */ static void cpumR3CpuIdLimitLeaves(PCPUM pCpum, PCPUMCPUIDCONFIG pConfig) { /* * Standard leaves. */ uint32_t uSubLeaf = 0; PCPUMCPUIDLEAF pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 0, uSubLeaf); if (pCurLeaf) { uint32_t uLimit = pCurLeaf->uEax; if (uLimit <= UINT32_C(0x000fffff)) { if (uLimit > pConfig->uMaxStdLeaf) { pCurLeaf->uEax = uLimit = pConfig->uMaxStdLeaf; cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves, uLimit + 1, UINT32_C(0x000fffff)); } /* NT4 hack, no zapping of extra leaves here. */ if (pConfig->fNt4LeafLimit && uLimit > 3) pCurLeaf->uEax = uLimit = 3; while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x00000000), ++uSubLeaf)) != NULL) pCurLeaf->uEax = uLimit; } else { LogRel(("CPUID: Invalid standard range: %#x\n", uLimit)); cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves, UINT32_C(0x00000000), UINT32_C(0x0fffffff)); } } /* * Extended leaves. */ uSubLeaf = 0; pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x80000000), uSubLeaf); if (pCurLeaf) { uint32_t uLimit = pCurLeaf->uEax; if ( uLimit >= UINT32_C(0x80000000) && uLimit <= UINT32_C(0x800fffff)) { if (uLimit > pConfig->uMaxExtLeaf) { pCurLeaf->uEax = uLimit = pConfig->uMaxExtLeaf; cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves, uLimit + 1, UINT32_C(0x800fffff)); while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x80000000), ++uSubLeaf)) != NULL) pCurLeaf->uEax = uLimit; } } else { LogRel(("CPUID: Invalid extended range: %#x\n", uLimit)); cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves, UINT32_C(0x80000000), UINT32_C(0x8ffffffd)); } } /* * Centaur leaves (VIA). */ uSubLeaf = 0; pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0xc0000000), uSubLeaf); if (pCurLeaf) { uint32_t uLimit = pCurLeaf->uEax; if ( uLimit >= UINT32_C(0xc0000000) && uLimit <= UINT32_C(0xc00fffff)) { if (uLimit > pConfig->uMaxCentaurLeaf) { pCurLeaf->uEax = uLimit = pConfig->uMaxCentaurLeaf; cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves, uLimit + 1, UINT32_C(0xcfffffff)); while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0xc0000000), ++uSubLeaf)) != NULL) pCurLeaf->uEax = uLimit; } } else { LogRel(("CPUID: Invalid centaur range: %#x\n", uLimit)); cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves, UINT32_C(0xc0000000), UINT32_C(0xcfffffff)); } } } /** * Clears a CPUID leaf and all sub-leaves (to zero). * * @param pCpum The CPUM instance data. * @param uLeaf The leaf to clear. */ static void cpumR3CpuIdZeroLeaf(PCPUM pCpum, uint32_t uLeaf) { uint32_t uSubLeaf = 0; PCPUMCPUIDLEAF pCurLeaf; while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, uLeaf, uSubLeaf)) != NULL) { pCurLeaf->uEax = 0; pCurLeaf->uEbx = 0; pCurLeaf->uEcx = 0; pCurLeaf->uEdx = 0; uSubLeaf++; } } /** * Used by cpumR3CpuIdSanitize to ensure that we don't have any sub-leaves for * the given leaf. * * @returns pLeaf. * @param pCpum The CPUM instance data. * @param pLeaf The leaf to ensure is alone with it's EAX input value. */ static PCPUMCPUIDLEAF cpumR3CpuIdMakeSingleLeaf(PCPUM pCpum, PCPUMCPUIDLEAF pLeaf) { Assert((uintptr_t)(pLeaf - pCpum->GuestInfo.paCpuIdLeavesR3) < pCpum->GuestInfo.cCpuIdLeaves); if (pLeaf->fSubLeafMask != 0) { /* * Figure out how many sub-leaves in need of removal (we'll keep the first). * Log everything while we're at it. */ LogRel(("CPUM:\n" "CPUM: Unexpected CPUID sub-leaves for leaf %#x; fSubLeafMask=%#x\n", pLeaf->uLeaf, pLeaf->fSubLeafMask)); PCPUMCPUIDLEAF pLast = &pCpum->GuestInfo.paCpuIdLeavesR3[pCpum->GuestInfo.cCpuIdLeaves - 1]; PCPUMCPUIDLEAF pSubLeaf = pLeaf; for (;;) { LogRel(("CPUM: %08x/%08x: %08x %08x %08x %08x; flags=%#x mask=%#x\n", pSubLeaf->uLeaf, pSubLeaf->uSubLeaf, pSubLeaf->uEax, pSubLeaf->uEbx, pSubLeaf->uEcx, pSubLeaf->uEdx, pSubLeaf->fFlags, pSubLeaf->fSubLeafMask)); if (pSubLeaf == pLast || pSubLeaf[1].uLeaf != pLeaf->uLeaf) break; pSubLeaf++; } LogRel(("CPUM:\n")); /* * Remove the offending sub-leaves. */ if (pSubLeaf != pLeaf) { if (pSubLeaf != pLast) memmove(pLeaf + 1, pSubLeaf + 1, (uintptr_t)pLast - (uintptr_t)pSubLeaf); pCpum->GuestInfo.cCpuIdLeaves -= (uint32_t)(pSubLeaf - pLeaf); } /* * Convert the first sub-leaf into a single leaf. */ pLeaf->uSubLeaf = 0; pLeaf->fSubLeafMask = 0; } return pLeaf; } /** * Sanitizes and adjust the CPUID leaves. * * Drop features that aren't virtualized (or virtualizable). Adjust information * and capabilities to fit the virtualized hardware. Remove information the * guest shouldn't have (because it's wrong in the virtual world or because it * gives away host details) or that we don't have documentation for and no idea * what means. * * @returns VBox status code. * @param pVM The cross context VM structure (for cCpus). * @param pCpum The CPUM instance data. * @param pConfig The CPUID configuration we've read from CFGM. */ static int cpumR3CpuIdSanitize(PVM pVM, PCPUM pCpum, PCPUMCPUIDCONFIG pConfig) { #define PORTABLE_CLEAR_BITS_WHEN(Lvl, a_pLeafReg, FeatNm, fMask, uValue) \ if ( pCpum->u8PortableCpuIdLevel >= (Lvl) && ((a_pLeafReg) & (fMask)) == (uValue) ) \ { \ LogRel(("PortableCpuId: " #a_pLeafReg "[" #FeatNm "]: %#x -> 0\n", (a_pLeafReg) & (fMask))); \ (a_pLeafReg) &= ~(uint32_t)(fMask); \ } #define PORTABLE_DISABLE_FEATURE_BIT(Lvl, a_pLeafReg, FeatNm, fBitMask) \ if ( pCpum->u8PortableCpuIdLevel >= (Lvl) && ((a_pLeafReg) & (fBitMask)) ) \ { \ LogRel(("PortableCpuId: " #a_pLeafReg "[" #FeatNm "]: 1 -> 0\n")); \ (a_pLeafReg) &= ~(uint32_t)(fBitMask); \ } #define PORTABLE_DISABLE_FEATURE_BIT_CFG(Lvl, a_pLeafReg, FeatNm, fBitMask, enmConfig) \ if ( pCpum->u8PortableCpuIdLevel >= (Lvl) \ && ((a_pLeafReg) & (fBitMask)) \ && (enmConfig) != CPUMISAEXTCFG_ENABLED_PORTABLE ) \ { \ LogRel(("PortableCpuId: " #a_pLeafReg "[" #FeatNm "]: 1 -> 0\n")); \ (a_pLeafReg) &= ~(uint32_t)(fBitMask); \ } Assert(pCpum->GuestFeatures.enmCpuVendor != CPUMCPUVENDOR_INVALID); /* The CPUID entries we start with here isn't necessarily the ones of the host, so we must consult HostFeatures when processing CPUMISAEXTCFG variables. */ PCCPUMFEATURES pHstFeat = &pCpum->HostFeatures; #define PASSTHRU_FEATURE(enmConfig, fHostFeature, fConst) \ ((enmConfig) && ((enmConfig) == CPUMISAEXTCFG_ENABLED_ALWAYS || (fHostFeature)) ? (fConst) : 0) #define PASSTHRU_FEATURE_EX(enmConfig, fHostFeature, fAndExpr, fConst) \ ((enmConfig) && ((enmConfig) == CPUMISAEXTCFG_ENABLED_ALWAYS || (fHostFeature)) && (fAndExpr) ? (fConst) : 0) #define PASSTHRU_FEATURE_TODO(enmConfig, fConst) ((enmConfig) ? (fConst) : 0) /* Cpuid 1: * EAX: CPU model, family and stepping. * * ECX + EDX: Supported features. Only report features we can support. * Note! When enabling new features the Synthetic CPU and Portable CPUID * options may require adjusting (i.e. stripping what was enabled). * * EBX: Branding, CLFLUSH line size, logical processors per package and * initial APIC ID. */ PCPUMCPUIDLEAF pStdFeatureLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 1, 0); /* Note! Must refetch when used later. */ AssertLogRelReturn(pStdFeatureLeaf, VERR_CPUM_IPE_2); pStdFeatureLeaf = cpumR3CpuIdMakeSingleLeaf(pCpum, pStdFeatureLeaf); pStdFeatureLeaf->uEdx &= X86_CPUID_FEATURE_EDX_FPU | X86_CPUID_FEATURE_EDX_VME | X86_CPUID_FEATURE_EDX_DE | X86_CPUID_FEATURE_EDX_PSE | X86_CPUID_FEATURE_EDX_TSC | X86_CPUID_FEATURE_EDX_MSR //| X86_CPUID_FEATURE_EDX_PAE - set later if configured. | X86_CPUID_FEATURE_EDX_MCE | X86_CPUID_FEATURE_EDX_CX8 //| X86_CPUID_FEATURE_EDX_APIC - set by the APIC device if present. //| RT_BIT_32(10) - not defined | X86_CPUID_FEATURE_EDX_SEP | X86_CPUID_FEATURE_EDX_MTRR | X86_CPUID_FEATURE_EDX_PGE | X86_CPUID_FEATURE_EDX_MCA | X86_CPUID_FEATURE_EDX_CMOV | X86_CPUID_FEATURE_EDX_PAT /* 16 */ | X86_CPUID_FEATURE_EDX_PSE36 //| X86_CPUID_FEATURE_EDX_PSN - no serial number. | X86_CPUID_FEATURE_EDX_CLFSH //| RT_BIT_32(20) - not defined //| X86_CPUID_FEATURE_EDX_DS - no debug store. //| X86_CPUID_FEATURE_EDX_ACPI - not supported (not DevAcpi, right?). | X86_CPUID_FEATURE_EDX_MMX | X86_CPUID_FEATURE_EDX_FXSR | X86_CPUID_FEATURE_EDX_SSE | X86_CPUID_FEATURE_EDX_SSE2 //| X86_CPUID_FEATURE_EDX_SS - no self snoop. | X86_CPUID_FEATURE_EDX_HTT //| X86_CPUID_FEATURE_EDX_TM - no thermal monitor. //| RT_BIT_32(30) - not defined //| X86_CPUID_FEATURE_EDX_PBE - no pending break enabled. ; pStdFeatureLeaf->uEcx &= X86_CPUID_FEATURE_ECX_SSE3 | PASSTHRU_FEATURE_TODO(pConfig->enmPClMul, X86_CPUID_FEATURE_ECX_PCLMUL) //| X86_CPUID_FEATURE_ECX_DTES64 - not implemented yet. /* Can't properly emulate monitor & mwait with guest SMP; force the guest to use hlt for idling VCPUs. */ | PASSTHRU_FEATURE_EX(pConfig->enmMonitor, pHstFeat->fMonitorMWait, pVM->cCpus == 1, X86_CPUID_FEATURE_ECX_MONITOR) //| X86_CPUID_FEATURE_ECX_CPLDS - no CPL qualified debug store. | (pConfig->fNestedHWVirt ? X86_CPUID_FEATURE_ECX_VMX : 0) //| X86_CPUID_FEATURE_ECX_SMX - not virtualized yet. //| X86_CPUID_FEATURE_ECX_EST - no extended speed step. //| X86_CPUID_FEATURE_ECX_TM2 - no thermal monitor 2. | X86_CPUID_FEATURE_ECX_SSSE3 //| X86_CPUID_FEATURE_ECX_CNTXID - no L1 context id (MSR++). //| X86_CPUID_FEATURE_ECX_FMA - not implemented yet. | PASSTHRU_FEATURE(pConfig->enmCmpXchg16b, pHstFeat->fMovCmpXchg16b, X86_CPUID_FEATURE_ECX_CX16) /* ECX Bit 14 - xTPR Update Control. Processor supports changing IA32_MISC_ENABLES[bit 23]. */ //| X86_CPUID_FEATURE_ECX_TPRUPDATE //| X86_CPUID_FEATURE_ECX_PDCM - not implemented yet. | PASSTHRU_FEATURE(pConfig->enmPcid, pHstFeat->fPcid, X86_CPUID_FEATURE_ECX_PCID) //| X86_CPUID_FEATURE_ECX_DCA - not implemented yet. | PASSTHRU_FEATURE(pConfig->enmSse41, pHstFeat->fSse41, X86_CPUID_FEATURE_ECX_SSE4_1) | PASSTHRU_FEATURE(pConfig->enmSse42, pHstFeat->fSse42, X86_CPUID_FEATURE_ECX_SSE4_2) //| X86_CPUID_FEATURE_ECX_X2APIC - turned on later by the device if enabled. | PASSTHRU_FEATURE_TODO(pConfig->enmMovBe, X86_CPUID_FEATURE_ECX_MOVBE) | PASSTHRU_FEATURE(pConfig->enmPopCnt, pHstFeat->fPopCnt, X86_CPUID_FEATURE_ECX_POPCNT) //| X86_CPUID_FEATURE_ECX_TSCDEADL - not implemented yet. | PASSTHRU_FEATURE_TODO(pConfig->enmAesNi, X86_CPUID_FEATURE_ECX_AES) | PASSTHRU_FEATURE(pConfig->enmXSave, pHstFeat->fXSaveRstor, X86_CPUID_FEATURE_ECX_XSAVE) //| X86_CPUID_FEATURE_ECX_OSXSAVE - mirrors CR4.OSXSAVE state, set dynamically. | PASSTHRU_FEATURE(pConfig->enmAvx, pHstFeat->fAvx, X86_CPUID_FEATURE_ECX_AVX) //| X86_CPUID_FEATURE_ECX_F16C - not implemented yet. | PASSTHRU_FEATURE_TODO(pConfig->enmRdRand, X86_CPUID_FEATURE_ECX_RDRAND) //| X86_CPUID_FEATURE_ECX_HVP - Set explicitly later. ; /* Mask out PCID unless FSGSBASE is exposed due to a bug in Windows 10 SMP guests, see @bugref{9089#c15}. */ if ( !pVM->cpum.s.GuestFeatures.fFsGsBase && (pStdFeatureLeaf->uEcx & X86_CPUID_FEATURE_ECX_PCID)) { pStdFeatureLeaf->uEcx &= ~X86_CPUID_FEATURE_ECX_PCID; LogRel(("CPUM: Disabled PCID without FSGSBASE to workaround buggy guests\n")); } if (pCpum->u8PortableCpuIdLevel > 0) { PORTABLE_CLEAR_BITS_WHEN(1, pStdFeatureLeaf->uEax, ProcessorType, (UINT32_C(3) << 12), (UINT32_C(2) << 12)); PORTABLE_DISABLE_FEATURE_BIT( 1, pStdFeatureLeaf->uEcx, SSSE3, X86_CPUID_FEATURE_ECX_SSSE3); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, PCID, X86_CPUID_FEATURE_ECX_PCID, pConfig->enmPcid); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, SSE4_1, X86_CPUID_FEATURE_ECX_SSE4_1, pConfig->enmSse41); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, SSE4_2, X86_CPUID_FEATURE_ECX_SSE4_2, pConfig->enmSse42); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, MOVBE, X86_CPUID_FEATURE_ECX_MOVBE, pConfig->enmMovBe); PORTABLE_DISABLE_FEATURE_BIT( 1, pStdFeatureLeaf->uEcx, AES, X86_CPUID_FEATURE_ECX_AES); PORTABLE_DISABLE_FEATURE_BIT( 1, pStdFeatureLeaf->uEcx, VMX, X86_CPUID_FEATURE_ECX_VMX); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, PCLMUL, X86_CPUID_FEATURE_ECX_PCLMUL, pConfig->enmPClMul); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, POPCNT, X86_CPUID_FEATURE_ECX_POPCNT, pConfig->enmPopCnt); PORTABLE_DISABLE_FEATURE_BIT( 1, pStdFeatureLeaf->uEcx, F16C, X86_CPUID_FEATURE_ECX_F16C); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, XSAVE, X86_CPUID_FEATURE_ECX_XSAVE, pConfig->enmXSave); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, AVX, X86_CPUID_FEATURE_ECX_AVX, pConfig->enmAvx); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, RDRAND, X86_CPUID_FEATURE_ECX_RDRAND, pConfig->enmRdRand); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pStdFeatureLeaf->uEcx, CX16, X86_CPUID_FEATURE_ECX_CX16, pConfig->enmCmpXchg16b); PORTABLE_DISABLE_FEATURE_BIT( 2, pStdFeatureLeaf->uEcx, SSE3, X86_CPUID_FEATURE_ECX_SSE3); PORTABLE_DISABLE_FEATURE_BIT( 3, pStdFeatureLeaf->uEdx, SSE2, X86_CPUID_FEATURE_EDX_SSE2); PORTABLE_DISABLE_FEATURE_BIT( 3, pStdFeatureLeaf->uEdx, SSE, X86_CPUID_FEATURE_EDX_SSE); PORTABLE_DISABLE_FEATURE_BIT( 3, pStdFeatureLeaf->uEdx, CLFSH, X86_CPUID_FEATURE_EDX_CLFSH); PORTABLE_DISABLE_FEATURE_BIT( 3, pStdFeatureLeaf->uEdx, CMOV, X86_CPUID_FEATURE_EDX_CMOV); Assert(!(pStdFeatureLeaf->uEdx & ( X86_CPUID_FEATURE_EDX_SEP ///?? | X86_CPUID_FEATURE_EDX_PSN | X86_CPUID_FEATURE_EDX_DS | X86_CPUID_FEATURE_EDX_ACPI | X86_CPUID_FEATURE_EDX_SS | X86_CPUID_FEATURE_EDX_TM | X86_CPUID_FEATURE_EDX_PBE ))); Assert(!(pStdFeatureLeaf->uEcx & ( X86_CPUID_FEATURE_ECX_DTES64 | X86_CPUID_FEATURE_ECX_CPLDS | X86_CPUID_FEATURE_ECX_AES | X86_CPUID_FEATURE_ECX_VMX | X86_CPUID_FEATURE_ECX_SMX | X86_CPUID_FEATURE_ECX_EST | X86_CPUID_FEATURE_ECX_TM2 | X86_CPUID_FEATURE_ECX_CNTXID | X86_CPUID_FEATURE_ECX_FMA | X86_CPUID_FEATURE_ECX_TPRUPDATE | X86_CPUID_FEATURE_ECX_PDCM | X86_CPUID_FEATURE_ECX_DCA | X86_CPUID_FEATURE_ECX_OSXSAVE ))); } /* Set up APIC ID for CPU 0, configure multi core/threaded smp. */ pStdFeatureLeaf->uEbx &= UINT32_C(0x0000ffff); /* (APIC-ID := 0 and #LogCpus := 0) */ /* The HTT bit is architectural and does not directly indicate hyper-threading or multiple cores; * it was set even on single-core/non-HT Northwood P4s for example. The HTT bit only means that the * information in EBX[23:16] (max number of addressable logical processor IDs) is valid. */ #ifdef VBOX_WITH_MULTI_CORE if (pVM->cCpus > 1) pStdFeatureLeaf->uEdx |= X86_CPUID_FEATURE_EDX_HTT; /* Force if emulating a multi-core CPU. */ #endif if (pStdFeatureLeaf->uEdx & X86_CPUID_FEATURE_EDX_HTT) { /* If CPUID Fn0000_0001_EDX[HTT] = 1 then LogicalProcessorCount is the number of threads per CPU core times the number of CPU cores per processor */ #ifdef VBOX_WITH_MULTI_CORE pStdFeatureLeaf->uEbx |= pVM->cCpus <= 0xff ? (pVM->cCpus << 16) : UINT32_C(0x00ff0000); #else /* Single logical processor in a package. */ pStdFeatureLeaf->uEbx |= (1 << 16); #endif } uint32_t uMicrocodeRev; int rc = SUPR3QueryMicrocodeRev(&uMicrocodeRev); if (RT_SUCCESS(rc)) { LogRel(("CPUM: Microcode revision 0x%08X\n", uMicrocodeRev)); } else { uMicrocodeRev = 0; LogRel(("CPUM: Failed to query microcode revision. rc=%Rrc\n", rc)); } /* Mask out the VME capability on certain CPUs, unless overridden by fForceVme. * VME bug was fixed in AGESA 1.0.0.6, microcode patch level 8001126. */ if ( ( pVM->cpum.s.GuestFeatures.enmMicroarch == kCpumMicroarch_AMD_Zen_Ryzen /** @todo The following ASSUMES that Hygon uses the same version numbering * as AMD and that they shipped buggy firmware. */ || pVM->cpum.s.GuestFeatures.enmMicroarch == kCpumMicroarch_Hygon_Dhyana) && uMicrocodeRev < 0x8001126 && !pConfig->fForceVme) { /** @todo The above is a very coarse test but at the moment we don't know any better (see @bugref{8852}). */ LogRel(("CPUM: Zen VME workaround engaged\n")); pStdFeatureLeaf->uEdx &= ~X86_CPUID_FEATURE_EDX_VME; } /* Force standard feature bits. */ if (pConfig->enmPClMul == CPUMISAEXTCFG_ENABLED_ALWAYS) pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_PCLMUL; if (pConfig->enmMonitor == CPUMISAEXTCFG_ENABLED_ALWAYS) pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_MONITOR; if (pConfig->enmCmpXchg16b == CPUMISAEXTCFG_ENABLED_ALWAYS) pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_CX16; if (pConfig->enmSse41 == CPUMISAEXTCFG_ENABLED_ALWAYS) pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_SSE4_1; if (pConfig->enmSse42 == CPUMISAEXTCFG_ENABLED_ALWAYS) pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_SSE4_2; if (pConfig->enmMovBe == CPUMISAEXTCFG_ENABLED_ALWAYS) pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_MOVBE; if (pConfig->enmPopCnt == CPUMISAEXTCFG_ENABLED_ALWAYS) pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_POPCNT; if (pConfig->enmAesNi == CPUMISAEXTCFG_ENABLED_ALWAYS) pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_AES; if (pConfig->enmXSave == CPUMISAEXTCFG_ENABLED_ALWAYS) pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_XSAVE; if (pConfig->enmAvx == CPUMISAEXTCFG_ENABLED_ALWAYS) pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_AVX; if (pConfig->enmRdRand == CPUMISAEXTCFG_ENABLED_ALWAYS) pStdFeatureLeaf->uEcx |= X86_CPUID_FEATURE_ECX_RDRAND; pStdFeatureLeaf = NULL; /* Must refetch! */ /* Cpuid 0x80000001: (Similar, but in no way identical to 0x00000001.) * AMD: * EAX: CPU model, family and stepping. * * ECX + EDX: Supported features. Only report features we can support. * Note! When enabling new features the Synthetic CPU and Portable CPUID * options may require adjusting (i.e. stripping what was enabled). * ASSUMES that this is ALWAYS the AMD defined feature set if present. * * EBX: Branding ID and package type (or reserved). * * Intel and probably most others: * EAX: 0 * EBX: 0 * ECX + EDX: Subset of AMD features, mainly for AMD64 support. */ PCPUMCPUIDLEAF pExtFeatureLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x80000001), 0); if (pExtFeatureLeaf) { pExtFeatureLeaf = cpumR3CpuIdMakeSingleLeaf(pCpum, pExtFeatureLeaf); pExtFeatureLeaf->uEdx &= X86_CPUID_AMD_FEATURE_EDX_FPU | X86_CPUID_AMD_FEATURE_EDX_VME | X86_CPUID_AMD_FEATURE_EDX_DE | X86_CPUID_AMD_FEATURE_EDX_PSE | X86_CPUID_AMD_FEATURE_EDX_TSC | X86_CPUID_AMD_FEATURE_EDX_MSR //?? this means AMD MSRs.. //| X86_CPUID_AMD_FEATURE_EDX_PAE - turned on when necessary //| X86_CPUID_AMD_FEATURE_EDX_MCE - not virtualized yet. | X86_CPUID_AMD_FEATURE_EDX_CX8 //| X86_CPUID_AMD_FEATURE_EDX_APIC - set by the APIC device if present. //| RT_BIT_32(10) - reserved | X86_CPUID_EXT_FEATURE_EDX_SYSCALL | X86_CPUID_AMD_FEATURE_EDX_MTRR | X86_CPUID_AMD_FEATURE_EDX_PGE | X86_CPUID_AMD_FEATURE_EDX_MCA | X86_CPUID_AMD_FEATURE_EDX_CMOV | X86_CPUID_AMD_FEATURE_EDX_PAT | X86_CPUID_AMD_FEATURE_EDX_PSE36 //| RT_BIT_32(18) - reserved //| RT_BIT_32(19) - reserved | X86_CPUID_EXT_FEATURE_EDX_NX //| RT_BIT_32(21) - reserved | PASSTHRU_FEATURE(pConfig->enmAmdExtMmx, pHstFeat->fAmdMmxExts, X86_CPUID_AMD_FEATURE_EDX_AXMMX) | X86_CPUID_AMD_FEATURE_EDX_MMX | X86_CPUID_AMD_FEATURE_EDX_FXSR | X86_CPUID_AMD_FEATURE_EDX_FFXSR //| X86_CPUID_EXT_FEATURE_EDX_PAGE1GB | X86_CPUID_EXT_FEATURE_EDX_RDTSCP //| RT_BIT_32(28) - reserved //| X86_CPUID_EXT_FEATURE_EDX_LONG_MODE - turned on when necessary | X86_CPUID_AMD_FEATURE_EDX_3DNOW_EX | X86_CPUID_AMD_FEATURE_EDX_3DNOW ; pExtFeatureLeaf->uEcx &= X86_CPUID_EXT_FEATURE_ECX_LAHF_SAHF //| X86_CPUID_AMD_FEATURE_ECX_CMPL - set below if applicable. | (pConfig->fNestedHWVirt ? X86_CPUID_AMD_FEATURE_ECX_SVM : 0) //| X86_CPUID_AMD_FEATURE_ECX_EXT_APIC /* Note: This could prevent teleporting from AMD to Intel CPUs! */ | X86_CPUID_AMD_FEATURE_ECX_CR8L /* expose lock mov cr0 = mov cr8 hack for guests that can use this feature to access the TPR. */ | PASSTHRU_FEATURE(pConfig->enmAbm, pHstFeat->fAbm, X86_CPUID_AMD_FEATURE_ECX_ABM) | PASSTHRU_FEATURE_TODO(pConfig->enmSse4A, X86_CPUID_AMD_FEATURE_ECX_SSE4A) | PASSTHRU_FEATURE_TODO(pConfig->enmMisAlnSse, X86_CPUID_AMD_FEATURE_ECX_MISALNSSE) | PASSTHRU_FEATURE(pConfig->enm3dNowPrf, pHstFeat->f3DNowPrefetch, X86_CPUID_AMD_FEATURE_ECX_3DNOWPRF) //| X86_CPUID_AMD_FEATURE_ECX_OSVW //| X86_CPUID_AMD_FEATURE_ECX_IBS //| X86_CPUID_AMD_FEATURE_ECX_XOP //| X86_CPUID_AMD_FEATURE_ECX_SKINIT //| X86_CPUID_AMD_FEATURE_ECX_WDT //| RT_BIT_32(14) - reserved //| X86_CPUID_AMD_FEATURE_ECX_LWP - not supported //| X86_CPUID_AMD_FEATURE_ECX_FMA4 - not yet virtualized. //| RT_BIT_32(17) - reserved //| RT_BIT_32(18) - reserved //| X86_CPUID_AMD_FEATURE_ECX_NODEID - not yet virtualized. //| RT_BIT_32(20) - reserved //| X86_CPUID_AMD_FEATURE_ECX_TBM - not yet virtualized. //| X86_CPUID_AMD_FEATURE_ECX_TOPOEXT - not yet virtualized. //| RT_BIT_32(23) - reserved //| RT_BIT_32(24) - reserved //| RT_BIT_32(25) - reserved //| RT_BIT_32(26) - reserved //| RT_BIT_32(27) - reserved //| RT_BIT_32(28) - reserved //| RT_BIT_32(29) - reserved //| RT_BIT_32(30) - reserved //| RT_BIT_32(31) - reserved ; #ifdef VBOX_WITH_MULTI_CORE if ( pVM->cCpus > 1 && ( pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD || pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON)) pExtFeatureLeaf->uEcx |= X86_CPUID_AMD_FEATURE_ECX_CMPL; /* CmpLegacy */ #endif if (pCpum->u8PortableCpuIdLevel > 0) { PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEcx, CR8L, X86_CPUID_AMD_FEATURE_ECX_CR8L); PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEcx, SVM, X86_CPUID_AMD_FEATURE_ECX_SVM); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pExtFeatureLeaf->uEcx, ABM, X86_CPUID_AMD_FEATURE_ECX_ABM, pConfig->enmAbm); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pExtFeatureLeaf->uEcx, SSE4A, X86_CPUID_AMD_FEATURE_ECX_SSE4A, pConfig->enmSse4A); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pExtFeatureLeaf->uEcx, MISALNSSE, X86_CPUID_AMD_FEATURE_ECX_MISALNSSE, pConfig->enmMisAlnSse); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pExtFeatureLeaf->uEcx, 3DNOWPRF, X86_CPUID_AMD_FEATURE_ECX_3DNOWPRF, pConfig->enm3dNowPrf); PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEcx, XOP, X86_CPUID_AMD_FEATURE_ECX_XOP); PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEcx, TBM, X86_CPUID_AMD_FEATURE_ECX_TBM); PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEcx, FMA4, X86_CPUID_AMD_FEATURE_ECX_FMA4); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pExtFeatureLeaf->uEdx, AXMMX, X86_CPUID_AMD_FEATURE_EDX_AXMMX, pConfig->enmAmdExtMmx); PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEdx, 3DNOW, X86_CPUID_AMD_FEATURE_EDX_3DNOW); PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEdx, 3DNOW_EX, X86_CPUID_AMD_FEATURE_EDX_3DNOW_EX); PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEdx, FFXSR, X86_CPUID_AMD_FEATURE_EDX_FFXSR); PORTABLE_DISABLE_FEATURE_BIT( 1, pExtFeatureLeaf->uEdx, RDTSCP, X86_CPUID_EXT_FEATURE_EDX_RDTSCP); PORTABLE_DISABLE_FEATURE_BIT( 2, pExtFeatureLeaf->uEcx, LAHF_SAHF, X86_CPUID_EXT_FEATURE_ECX_LAHF_SAHF); PORTABLE_DISABLE_FEATURE_BIT( 3, pExtFeatureLeaf->uEcx, CMOV, X86_CPUID_AMD_FEATURE_EDX_CMOV); Assert(!(pExtFeatureLeaf->uEcx & ( X86_CPUID_AMD_FEATURE_ECX_SVM | X86_CPUID_AMD_FEATURE_ECX_EXT_APIC | X86_CPUID_AMD_FEATURE_ECX_OSVW | X86_CPUID_AMD_FEATURE_ECX_IBS | X86_CPUID_AMD_FEATURE_ECX_SKINIT | X86_CPUID_AMD_FEATURE_ECX_WDT | X86_CPUID_AMD_FEATURE_ECX_LWP | X86_CPUID_AMD_FEATURE_ECX_NODEID | X86_CPUID_AMD_FEATURE_ECX_TOPOEXT | UINT32_C(0xff964000) ))); Assert(!(pExtFeatureLeaf->uEdx & ( RT_BIT(10) | X86_CPUID_EXT_FEATURE_EDX_SYSCALL | RT_BIT(18) | RT_BIT(19) | RT_BIT(21) | X86_CPUID_AMD_FEATURE_EDX_AXMMX | X86_CPUID_EXT_FEATURE_EDX_PAGE1GB | RT_BIT(28) ))); } /* Force extended feature bits. */ if (pConfig->enmAbm == CPUMISAEXTCFG_ENABLED_ALWAYS) pExtFeatureLeaf->uEcx |= X86_CPUID_AMD_FEATURE_ECX_ABM; if (pConfig->enmSse4A == CPUMISAEXTCFG_ENABLED_ALWAYS) pExtFeatureLeaf->uEcx |= X86_CPUID_AMD_FEATURE_ECX_SSE4A; if (pConfig->enmMisAlnSse == CPUMISAEXTCFG_ENABLED_ALWAYS) pExtFeatureLeaf->uEcx |= X86_CPUID_AMD_FEATURE_ECX_MISALNSSE; if (pConfig->enm3dNowPrf == CPUMISAEXTCFG_ENABLED_ALWAYS) pExtFeatureLeaf->uEcx |= X86_CPUID_AMD_FEATURE_ECX_3DNOWPRF; if (pConfig->enmAmdExtMmx == CPUMISAEXTCFG_ENABLED_ALWAYS) pExtFeatureLeaf->uEdx |= X86_CPUID_AMD_FEATURE_EDX_AXMMX; } pExtFeatureLeaf = NULL; /* Must refetch! */ /* Cpuid 2: * Intel: (Nondeterministic) Cache and TLB information * AMD: Reserved * VIA: Reserved * Safe to expose. */ uint32_t uSubLeaf = 0; PCPUMCPUIDLEAF pCurLeaf; while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 2, uSubLeaf)) != NULL) { if ((pCurLeaf->uEax & 0xff) > 1) { LogRel(("CpuId: Std[2].al: %d -> 1\n", pCurLeaf->uEax & 0xff)); pCurLeaf->uEax &= UINT32_C(0xffffff01); } uSubLeaf++; } /* Cpuid 3: * Intel: EAX, EBX - reserved (transmeta uses these) * ECX, EDX - Processor Serial Number if available, otherwise reserved * AMD: Reserved * VIA: Reserved * Safe to expose */ pStdFeatureLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 1, 0); if (!(pStdFeatureLeaf->uEdx & X86_CPUID_FEATURE_EDX_PSN)) { uSubLeaf = 0; while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 3, uSubLeaf)) != NULL) { pCurLeaf->uEcx = pCurLeaf->uEdx = 0; if (pCpum->u8PortableCpuIdLevel > 0) pCurLeaf->uEax = pCurLeaf->uEbx = 0; uSubLeaf++; } } /* Cpuid 4 + ECX: * Intel: Deterministic Cache Parameters Leaf. * AMD: Reserved * VIA: Reserved * Safe to expose, except for EAX: * Bits 25-14: Maximum number of addressable IDs for logical processors sharing this cache (see note)** * Bits 31-26: Maximum number of processor cores in this physical package** * Note: These SMP values are constant regardless of ECX */ uSubLeaf = 0; while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 4, uSubLeaf)) != NULL) { pCurLeaf->uEax &= UINT32_C(0x00003fff); /* Clear the #maxcores, #threads-sharing-cache (both are #-1).*/ #ifdef VBOX_WITH_MULTI_CORE if ( pVM->cCpus > 1 && pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_INTEL) { AssertReturn(pVM->cCpus <= 64, VERR_TOO_MANY_CPUS); /* One logical processor with possibly multiple cores. */ /* See http://www.intel.com/Assets/PDF/appnote/241618.pdf p. 29 */ pCurLeaf->uEax |= pVM->cCpus <= 0x40 ? ((pVM->cCpus - 1) << 26) : UINT32_C(0xfc000000); /* 6 bits only -> 64 cores! */ } #endif uSubLeaf++; } /* Cpuid 5: Monitor/mwait Leaf * Intel: ECX, EDX - reserved * EAX, EBX - Smallest and largest monitor line size * AMD: EDX - reserved * EAX, EBX - Smallest and largest monitor line size * ECX - extensions (ignored for now) * VIA: Reserved * Safe to expose */ uSubLeaf = 0; while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 5, uSubLeaf)) != NULL) { pStdFeatureLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 1, 0); if (!(pStdFeatureLeaf->uEcx & X86_CPUID_FEATURE_ECX_MONITOR)) pCurLeaf->uEax = pCurLeaf->uEbx = 0; pCurLeaf->uEcx = pCurLeaf->uEdx = 0; if (pConfig->enmMWaitExtensions) { pCurLeaf->uEcx = X86_CPUID_MWAIT_ECX_EXT | X86_CPUID_MWAIT_ECX_BREAKIRQIF0; /** @todo for now we just expose host's MWAIT C-states, although conceptually it shall be part of our power management virtualization model */ #if 0 /* MWAIT sub C-states */ pCurLeaf->uEdx = (0 << 0) /* 0 in C0 */ | (2 << 4) /* 2 in C1 */ | (2 << 8) /* 2 in C2 */ | (2 << 12) /* 2 in C3 */ | (0 << 16) /* 0 in C4 */ ; #endif } else pCurLeaf->uEcx = pCurLeaf->uEdx = 0; uSubLeaf++; } /* Cpuid 6: Digital Thermal Sensor and Power Management Paramenters. * Intel: Various stuff. * AMD: EAX, EBX, EDX - reserved. * ECX - Bit zero is EffFreq, indicating MSR_0000_00e7 and MSR_0000_00e8 * present. Same as intel. * VIA: ?? * * We clear everything here for now. */ cpumR3CpuIdZeroLeaf(pCpum, 6); /* Cpuid 7 + ECX: Structured Extended Feature Flags Enumeration * EAX: Number of sub leaves. * EBX+ECX+EDX: Feature flags * * We only have documentation for one sub-leaf, so clear all other (no need * to remove them as such, just set them to zero). * * Note! When enabling new features the Synthetic CPU and Portable CPUID * options may require adjusting (i.e. stripping what was enabled). */ uSubLeaf = 0; while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 7, uSubLeaf)) != NULL) { switch (uSubLeaf) { case 0: { pCurLeaf->uEax = 0; /* Max ECX input is 0. */ pCurLeaf->uEbx &= 0 | PASSTHRU_FEATURE(pConfig->enmFsGsBase, pHstFeat->fFsGsBase, X86_CPUID_STEXT_FEATURE_EBX_FSGSBASE) //| X86_CPUID_STEXT_FEATURE_EBX_TSC_ADJUST RT_BIT(1) //| X86_CPUID_STEXT_FEATURE_EBX_SGX RT_BIT(2) | X86_CPUID_STEXT_FEATURE_EBX_BMI1 //| X86_CPUID_STEXT_FEATURE_EBX_HLE RT_BIT(4) | PASSTHRU_FEATURE(pConfig->enmAvx2, pHstFeat->fAvx2, X86_CPUID_STEXT_FEATURE_EBX_AVX2) | X86_CPUID_STEXT_FEATURE_EBX_FDP_EXCPTN_ONLY //| X86_CPUID_STEXT_FEATURE_EBX_SMEP RT_BIT(7) | X86_CPUID_STEXT_FEATURE_EBX_BMI2 //| X86_CPUID_STEXT_FEATURE_EBX_ERMS RT_BIT(9) | PASSTHRU_FEATURE(pConfig->enmInvpcid, pHstFeat->fInvpcid, X86_CPUID_STEXT_FEATURE_EBX_INVPCID) //| X86_CPUID_STEXT_FEATURE_EBX_RTM RT_BIT(11) //| X86_CPUID_STEXT_FEATURE_EBX_PQM RT_BIT(12) | X86_CPUID_STEXT_FEATURE_EBX_DEPR_FPU_CS_DS //| X86_CPUID_STEXT_FEATURE_EBX_MPE RT_BIT(14) //| X86_CPUID_STEXT_FEATURE_EBX_PQE RT_BIT(15) //| X86_CPUID_STEXT_FEATURE_EBX_AVX512F RT_BIT(16) //| RT_BIT(17) - reserved | PASSTHRU_FEATURE_TODO(pConfig->enmRdSeed, X86_CPUID_STEXT_FEATURE_EBX_RDSEED) //| X86_CPUID_STEXT_FEATURE_EBX_ADX RT_BIT(19) //| X86_CPUID_STEXT_FEATURE_EBX_SMAP RT_BIT(20) //| RT_BIT(21) - reserved //| RT_BIT(22) - reserved | PASSTHRU_FEATURE(pConfig->enmCLFlushOpt, pHstFeat->fClFlushOpt, X86_CPUID_STEXT_FEATURE_EBX_CLFLUSHOPT) //| RT_BIT(24) - reserved //| X86_CPUID_STEXT_FEATURE_EBX_INTEL_PT RT_BIT(25) //| X86_CPUID_STEXT_FEATURE_EBX_AVX512PF RT_BIT(26) //| X86_CPUID_STEXT_FEATURE_EBX_AVX512ER RT_BIT(27) //| X86_CPUID_STEXT_FEATURE_EBX_AVX512CD RT_BIT(28) //| X86_CPUID_STEXT_FEATURE_EBX_SHA RT_BIT(29) //| RT_BIT(30) - reserved //| RT_BIT(31) - reserved ; pCurLeaf->uEcx &= 0 //| X86_CPUID_STEXT_FEATURE_ECX_PREFETCHWT1 - we do not do vector functions yet. ; pCurLeaf->uEdx &= 0 | PASSTHRU_FEATURE(pConfig->enmMdsClear, pHstFeat->fMdsClear, X86_CPUID_STEXT_FEATURE_EDX_MD_CLEAR) //| X86_CPUID_STEXT_FEATURE_EDX_IBRS_IBPB RT_BIT(26) //| X86_CPUID_STEXT_FEATURE_EDX_STIBP RT_BIT(27) | PASSTHRU_FEATURE(pConfig->enmFlushCmdMsr, pHstFeat->fFlushCmd, X86_CPUID_STEXT_FEATURE_EDX_FLUSH_CMD) | PASSTHRU_FEATURE(pConfig->enmArchCapMsr, pHstFeat->fArchCap, X86_CPUID_STEXT_FEATURE_EDX_ARCHCAP) ; /* Mask out INVPCID unless FSGSBASE is exposed due to a bug in Windows 10 SMP guests, see @bugref{9089#c15}. */ if ( !pVM->cpum.s.GuestFeatures.fFsGsBase && (pCurLeaf->uEbx & X86_CPUID_STEXT_FEATURE_EBX_INVPCID)) { pCurLeaf->uEbx &= ~X86_CPUID_STEXT_FEATURE_EBX_INVPCID; LogRel(("CPUM: Disabled INVPCID without FSGSBASE to work around buggy guests\n")); } if (pCpum->u8PortableCpuIdLevel > 0) { PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pCurLeaf->uEbx, FSGSBASE, X86_CPUID_STEXT_FEATURE_EBX_FSGSBASE, pConfig->enmFsGsBase); PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, SGX, X86_CPUID_STEXT_FEATURE_EBX_SGX); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pCurLeaf->uEbx, AVX2, X86_CPUID_STEXT_FEATURE_EBX_AVX2, pConfig->enmAvx2); PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, SMEP, X86_CPUID_STEXT_FEATURE_EBX_SMEP); PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, BMI2, X86_CPUID_STEXT_FEATURE_EBX_BMI2); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pCurLeaf->uEbx, INVPCID, X86_CPUID_STEXT_FEATURE_EBX_INVPCID, pConfig->enmInvpcid); PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, AVX512F, X86_CPUID_STEXT_FEATURE_EBX_AVX512F); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pCurLeaf->uEbx, RDSEED, X86_CPUID_STEXT_FEATURE_EBX_RDSEED, pConfig->enmRdSeed); PORTABLE_DISABLE_FEATURE_BIT_CFG(1, pCurLeaf->uEbx, CLFLUSHOPT, X86_CPUID_STEXT_FEATURE_EBX_RDSEED, pConfig->enmCLFlushOpt); PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, AVX512PF, X86_CPUID_STEXT_FEATURE_EBX_AVX512PF); PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, AVX512ER, X86_CPUID_STEXT_FEATURE_EBX_AVX512ER); PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, AVX512CD, X86_CPUID_STEXT_FEATURE_EBX_AVX512CD); PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, SMAP, X86_CPUID_STEXT_FEATURE_EBX_SMAP); PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEbx, SHA, X86_CPUID_STEXT_FEATURE_EBX_SHA); PORTABLE_DISABLE_FEATURE_BIT( 1, pCurLeaf->uEcx, PREFETCHWT1, X86_CPUID_STEXT_FEATURE_ECX_PREFETCHWT1); PORTABLE_DISABLE_FEATURE_BIT_CFG(3, pCurLeaf->uEdx, FLUSH_CMD, X86_CPUID_STEXT_FEATURE_EDX_FLUSH_CMD, pConfig->enmFlushCmdMsr); PORTABLE_DISABLE_FEATURE_BIT_CFG(3, pCurLeaf->uEdx, MD_CLEAR, X86_CPUID_STEXT_FEATURE_EDX_MD_CLEAR, pConfig->enmMdsClear); PORTABLE_DISABLE_FEATURE_BIT_CFG(3, pCurLeaf->uEdx, ARCHCAP, X86_CPUID_STEXT_FEATURE_EDX_ARCHCAP, pConfig->enmArchCapMsr); } /* Dependencies. */ if (!(pCurLeaf->uEdx & X86_CPUID_STEXT_FEATURE_EDX_FLUSH_CMD)) pCurLeaf->uEdx &= ~X86_CPUID_STEXT_FEATURE_EDX_MD_CLEAR; /* Force standard feature bits. */ if (pConfig->enmFsGsBase == CPUMISAEXTCFG_ENABLED_ALWAYS) pCurLeaf->uEbx |= X86_CPUID_STEXT_FEATURE_EBX_FSGSBASE; if (pConfig->enmAvx2 == CPUMISAEXTCFG_ENABLED_ALWAYS) pCurLeaf->uEbx |= X86_CPUID_STEXT_FEATURE_EBX_AVX2; if (pConfig->enmRdSeed == CPUMISAEXTCFG_ENABLED_ALWAYS) pCurLeaf->uEbx |= X86_CPUID_STEXT_FEATURE_EBX_RDSEED; if (pConfig->enmCLFlushOpt == CPUMISAEXTCFG_ENABLED_ALWAYS) pCurLeaf->uEbx |= X86_CPUID_STEXT_FEATURE_EBX_CLFLUSHOPT; if (pConfig->enmInvpcid == CPUMISAEXTCFG_ENABLED_ALWAYS) pCurLeaf->uEbx |= X86_CPUID_STEXT_FEATURE_EBX_INVPCID; if (pConfig->enmFlushCmdMsr == CPUMISAEXTCFG_ENABLED_ALWAYS) pCurLeaf->uEdx |= X86_CPUID_STEXT_FEATURE_EDX_FLUSH_CMD; if (pConfig->enmMdsClear == CPUMISAEXTCFG_ENABLED_ALWAYS) pCurLeaf->uEdx |= X86_CPUID_STEXT_FEATURE_EDX_MD_CLEAR; if (pConfig->enmArchCapMsr == CPUMISAEXTCFG_ENABLED_ALWAYS) pCurLeaf->uEdx |= X86_CPUID_STEXT_FEATURE_EDX_ARCHCAP; break; } default: /* Invalid index, all values are zero. */ pCurLeaf->uEax = 0; pCurLeaf->uEbx = 0; pCurLeaf->uEcx = 0; pCurLeaf->uEdx = 0; break; } uSubLeaf++; } /* Cpuid 8: Marked as reserved by Intel and AMD. * We zero this since we don't know what it may have been used for. */ cpumR3CpuIdZeroLeaf(pCpum, 8); /* Cpuid 9: Direct Cache Access (DCA) Parameters * Intel: EAX - Value of PLATFORM_DCA_CAP bits. * EBX, ECX, EDX - reserved. * AMD: Reserved * VIA: ?? * * We zero this. */ cpumR3CpuIdZeroLeaf(pCpum, 9); /* Cpuid 0xa: Architectural Performance Monitor Features * Intel: EAX - Value of PLATFORM_DCA_CAP bits. * EBX, ECX, EDX - reserved. * AMD: Reserved * VIA: ?? * * We zero this, for now at least. */ cpumR3CpuIdZeroLeaf(pCpum, 10); /* Cpuid 0xb+ECX: x2APIC Features / Processor Topology. * Intel: EAX - APCI ID shift right for next level. * EBX - Factory configured cores/threads at this level. * ECX - Level number (same as input) and level type (1,2,0). * EDX - Extended initial APIC ID. * AMD: Reserved * VIA: ?? */ uSubLeaf = 0; while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 11, uSubLeaf)) != NULL) { if (pCurLeaf->fFlags & CPUMCPUIDLEAF_F_CONTAINS_APIC_ID) { uint8_t bLevelType = RT_BYTE2(pCurLeaf->uEcx); if (bLevelType == 1) { /* Thread level - we don't do threads at the moment. */ pCurLeaf->uEax = 0; /** @todo is this correct? Real CPUs never do 0 here, I think... */ pCurLeaf->uEbx = 1; } else if (bLevelType == 2) { /* Core level. */ pCurLeaf->uEax = 1; /** @todo real CPUs are supposed to be in the 4-6 range, not 1. Our APIC ID assignments are a little special... */ #ifdef VBOX_WITH_MULTI_CORE while (RT_BIT_32(pCurLeaf->uEax) < pVM->cCpus) pCurLeaf->uEax++; #endif pCurLeaf->uEbx = pVM->cCpus; } else { AssertLogRelMsg(bLevelType == 0, ("bLevelType=%#x uSubLeaf=%#x\n", bLevelType, uSubLeaf)); pCurLeaf->uEax = 0; pCurLeaf->uEbx = 0; pCurLeaf->uEcx = 0; } pCurLeaf->uEcx = (pCurLeaf->uEcx & UINT32_C(0xffffff00)) | (uSubLeaf & 0xff); pCurLeaf->uEdx = 0; /* APIC ID is filled in by CPUMGetGuestCpuId() at runtime. Init for EMT(0) as usual. */ } else { pCurLeaf->uEax = 0; pCurLeaf->uEbx = 0; pCurLeaf->uEcx = 0; pCurLeaf->uEdx = 0; } uSubLeaf++; } /* Cpuid 0xc: Marked as reserved by Intel and AMD. * We zero this since we don't know what it may have been used for. */ cpumR3CpuIdZeroLeaf(pCpum, 12); /* Cpuid 0xd + ECX: Processor Extended State Enumeration * ECX=0: EAX - Valid bits in XCR0[31:0]. * EBX - Maximum state size as per current XCR0 value. * ECX - Maximum state size for all supported features. * EDX - Valid bits in XCR0[63:32]. * ECX=1: EAX - Various X-features. * EBX - Maximum state size as per current XCR0|IA32_XSS value. * ECX - Valid bits in IA32_XSS[31:0]. * EDX - Valid bits in IA32_XSS[63:32]. * ECX=N, where N in 2..63 and indicates a bit in XCR0 and/or IA32_XSS, * if the bit invalid all four registers are set to zero. * EAX - The state size for this feature. * EBX - The state byte offset of this feature. * ECX - Bit 0 indicates whether this sub-leaf maps to a valid IA32_XSS bit (=1) or a valid XCR0 bit (=0). * EDX - Reserved, but is set to zero if invalid sub-leaf index. * * Clear them all as we don't currently implement extended CPU state. */ /* Figure out the supported XCR0/XSS mask component and make sure CPUID[1].ECX[27] = CR4.OSXSAVE. */ uint64_t fGuestXcr0Mask = 0; pStdFeatureLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 1, 0); if (pStdFeatureLeaf && (pStdFeatureLeaf->uEcx & X86_CPUID_FEATURE_ECX_XSAVE)) { fGuestXcr0Mask = XSAVE_C_X87 | XSAVE_C_SSE; if (pStdFeatureLeaf && (pStdFeatureLeaf->uEcx & X86_CPUID_FEATURE_ECX_AVX)) fGuestXcr0Mask |= XSAVE_C_YMM; pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 7, 0); if (pCurLeaf && (pCurLeaf->uEbx & X86_CPUID_STEXT_FEATURE_EBX_AVX512F)) fGuestXcr0Mask |= XSAVE_C_ZMM_16HI | XSAVE_C_ZMM_HI256 | XSAVE_C_OPMASK; fGuestXcr0Mask &= pCpum->fXStateHostMask; pStdFeatureLeaf->fFlags |= CPUMCPUIDLEAF_F_CONTAINS_OSXSAVE; } pStdFeatureLeaf = NULL; pCpum->fXStateGuestMask = fGuestXcr0Mask; /* Work the sub-leaves. */ uint32_t cbXSaveMaxActual = CPUM_MIN_XSAVE_AREA_SIZE; uint32_t cbXSaveMaxReport = CPUM_MIN_XSAVE_AREA_SIZE; for (uSubLeaf = 0; uSubLeaf < 63; uSubLeaf++) { pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 13, uSubLeaf); if (pCurLeaf) { if (fGuestXcr0Mask) { switch (uSubLeaf) { case 0: pCurLeaf->uEax &= RT_LO_U32(fGuestXcr0Mask); pCurLeaf->uEdx &= RT_HI_U32(fGuestXcr0Mask); AssertLogRelMsgReturn((pCurLeaf->uEax & (XSAVE_C_X87 | XSAVE_C_SSE)) == (XSAVE_C_X87 | XSAVE_C_SSE), ("CPUID(0xd/0).EAX missing mandatory X87 or SSE bits: %#RX32", pCurLeaf->uEax), VERR_CPUM_IPE_1); cbXSaveMaxActual = pCurLeaf->uEcx; AssertLogRelMsgReturn(cbXSaveMaxActual <= CPUM_MAX_XSAVE_AREA_SIZE && cbXSaveMaxActual >= CPUM_MIN_XSAVE_AREA_SIZE, ("%#x max=%#x\n", cbXSaveMaxActual, CPUM_MAX_XSAVE_AREA_SIZE), VERR_CPUM_IPE_2); AssertLogRelMsgReturn(pCurLeaf->uEbx >= CPUM_MIN_XSAVE_AREA_SIZE && pCurLeaf->uEbx <= cbXSaveMaxActual, ("ebx=%#x cbXSaveMaxActual=%#x\n", pCurLeaf->uEbx, cbXSaveMaxActual), VERR_CPUM_IPE_2); continue; case 1: pCurLeaf->uEax &= 0; pCurLeaf->uEcx &= 0; pCurLeaf->uEdx &= 0; /** @todo what about checking ebx? */ continue; default: if (fGuestXcr0Mask & RT_BIT_64(uSubLeaf)) { AssertLogRelMsgReturn( pCurLeaf->uEax <= cbXSaveMaxActual && pCurLeaf->uEax > 0 && pCurLeaf->uEbx < cbXSaveMaxActual && pCurLeaf->uEbx >= CPUM_MIN_XSAVE_AREA_SIZE && pCurLeaf->uEbx + pCurLeaf->uEax <= cbXSaveMaxActual, ("%#x: eax=%#x ebx=%#x cbMax=%#x\n", uSubLeaf, pCurLeaf->uEax, pCurLeaf->uEbx, cbXSaveMaxActual), VERR_CPUM_IPE_2); AssertLogRel(!(pCurLeaf->uEcx & 1)); pCurLeaf->uEcx = 0; /* Bit 0 should be zero (XCR0), the reset are reserved... */ pCurLeaf->uEdx = 0; /* it's reserved... */ if (pCurLeaf->uEbx + pCurLeaf->uEax > cbXSaveMaxReport) cbXSaveMaxReport = pCurLeaf->uEbx + pCurLeaf->uEax; continue; } break; } } /* Clear the leaf. */ pCurLeaf->uEax = 0; pCurLeaf->uEbx = 0; pCurLeaf->uEcx = 0; pCurLeaf->uEdx = 0; } } /* Update the max and current feature sizes to shut up annoying Linux kernels. */ if (cbXSaveMaxReport != cbXSaveMaxActual && fGuestXcr0Mask) { pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 13, 0); if (pCurLeaf) { LogRel(("CPUM: Changing leaf 13[0]: EBX=%#RX32 -> %#RX32, ECX=%#RX32 -> %#RX32\n", pCurLeaf->uEbx, cbXSaveMaxReport, pCurLeaf->uEcx, cbXSaveMaxReport)); pCurLeaf->uEbx = cbXSaveMaxReport; pCurLeaf->uEcx = cbXSaveMaxReport; } } /* Cpuid 0xe: Marked as reserved by Intel and AMD. * We zero this since we don't know what it may have been used for. */ cpumR3CpuIdZeroLeaf(pCpum, 14); /* Cpuid 0xf + ECX: Platform quality of service monitoring (PQM), * also known as Intel Resource Director Technology (RDT) Monitoring * We zero this as we don't currently virtualize PQM. */ cpumR3CpuIdZeroLeaf(pCpum, 15); /* Cpuid 0x10 + ECX: Platform quality of service enforcement (PQE), * also known as Intel Resource Director Technology (RDT) Allocation * We zero this as we don't currently virtualize PQE. */ cpumR3CpuIdZeroLeaf(pCpum, 16); /* Cpuid 0x11: Marked as reserved by Intel and AMD. * We zero this since we don't know what it may have been used for. */ cpumR3CpuIdZeroLeaf(pCpum, 17); /* Cpuid 0x12 + ECX: SGX resource enumeration. * We zero this as we don't currently virtualize this. */ cpumR3CpuIdZeroLeaf(pCpum, 18); /* Cpuid 0x13: Marked as reserved by Intel and AMD. * We zero this since we don't know what it may have been used for. */ cpumR3CpuIdZeroLeaf(pCpum, 19); /* Cpuid 0x14 + ECX: Processor Trace (PT) capability enumeration. * We zero this as we don't currently virtualize this. */ cpumR3CpuIdZeroLeaf(pCpum, 20); /* Cpuid 0x15: Timestamp Counter / Core Crystal Clock info. * Intel: uTscFrequency = uCoreCrystalClockFrequency * EBX / EAX. * EAX - denominator (unsigned). * EBX - numerator (unsigned). * ECX, EDX - reserved. * AMD: Reserved / undefined / not implemented. * VIA: Reserved / undefined / not implemented. * We zero this as we don't currently virtualize this. */ cpumR3CpuIdZeroLeaf(pCpum, 21); /* Cpuid 0x16: Processor frequency info * Intel: EAX - Core base frequency in MHz. * EBX - Core maximum frequency in MHz. * ECX - Bus (reference) frequency in MHz. * EDX - Reserved. * AMD: Reserved / undefined / not implemented. * VIA: Reserved / undefined / not implemented. * We zero this as we don't currently virtualize this. */ cpumR3CpuIdZeroLeaf(pCpum, 22); /* Cpuid 0x17..0x10000000: Unknown. * We don't know these and what they mean, so remove them. */ cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves, UINT32_C(0x00000017), UINT32_C(0x0fffffff)); /* CpuId 0x40000000..0x4fffffff: Reserved for hypervisor/emulator. * We remove all these as we're a hypervisor and must provide our own. */ cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves, UINT32_C(0x40000000), UINT32_C(0x4fffffff)); /* Cpuid 0x80000000 is harmless. */ /* Cpuid 0x80000001 is handled with cpuid 1 way up above. */ /* Cpuid 0x80000002...0x80000004 contains the processor name and is considered harmless. */ /* Cpuid 0x800000005 & 0x800000006 contain information about L1, L2 & L3 cache and TLB identifiers. * Safe to pass on to the guest. * * AMD: 0x800000005 L1 cache information * 0x800000006 L2/L3 cache information * Intel: 0x800000005 reserved * 0x800000006 L2 cache information * VIA: 0x800000005 TLB and L1 cache information * 0x800000006 L2 cache information */ /* Cpuid 0x800000007: Advanced Power Management Information. * AMD: EAX: Processor feedback capabilities. * EBX: RAS capabilites. * ECX: Advanced power monitoring interface. * EDX: Enhanced power management capabilities. * Intel: EAX, EBX, ECX - reserved. * EDX - Invariant TSC indicator supported (bit 8), the rest is reserved. * VIA: Reserved * We let the guest see EDX_TSCINVAR (and later maybe EDX_EFRO). Actually, we should set EDX_TSCINVAR. */ uSubLeaf = 0; while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x80000007), uSubLeaf)) != NULL) { pCurLeaf->uEax = pCurLeaf->uEbx = pCurLeaf->uEcx = 0; if ( pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD || pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON) { /* * Older 64-bit linux kernels blindly assume that the AMD performance counters work * if X86_CPUID_AMD_ADVPOWER_EDX_TSCINVAR is set, see @bugref{7243#c85}. Exposing this * bit is now configurable. */ pCurLeaf->uEdx &= 0 //| X86_CPUID_AMD_ADVPOWER_EDX_TS //| X86_CPUID_AMD_ADVPOWER_EDX_FID //| X86_CPUID_AMD_ADVPOWER_EDX_VID //| X86_CPUID_AMD_ADVPOWER_EDX_TTP //| X86_CPUID_AMD_ADVPOWER_EDX_TM //| X86_CPUID_AMD_ADVPOWER_EDX_STC //| X86_CPUID_AMD_ADVPOWER_EDX_MC //| X86_CPUID_AMD_ADVPOWER_EDX_HWPSTATE | X86_CPUID_AMD_ADVPOWER_EDX_TSCINVAR //| X86_CPUID_AMD_ADVPOWER_EDX_CPB RT_BIT(9) //| X86_CPUID_AMD_ADVPOWER_EDX_EFRO RT_BIT(10) //| X86_CPUID_AMD_ADVPOWER_EDX_PFI RT_BIT(11) //| X86_CPUID_AMD_ADVPOWER_EDX_PA RT_BIT(12) | 0; } else pCurLeaf->uEdx &= X86_CPUID_AMD_ADVPOWER_EDX_TSCINVAR; if (!pConfig->fInvariantTsc) pCurLeaf->uEdx &= ~X86_CPUID_AMD_ADVPOWER_EDX_TSCINVAR; uSubLeaf++; } /* Cpuid 0x80000008: * AMD: EBX, EDX - reserved * EAX: Virtual/Physical/Guest address Size * ECX: Number of cores + APICIdCoreIdSize * Intel: EAX: Virtual/Physical address Size * EBX, ECX, EDX - reserved * VIA: EAX: Virtual/Physical address Size * EBX, ECX, EDX - reserved * * We only expose the virtual+pysical address size to the guest atm. * On AMD we set the core count, but not the apic id stuff as we're * currently not doing the apic id assignments in a complatible manner. */ uSubLeaf = 0; while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x80000008), uSubLeaf)) != NULL) { pCurLeaf->uEax &= UINT32_C(0x0000ffff); /* Virtual & physical address sizes only. */ pCurLeaf->uEbx = 0; /* reserved - [12] == IBPB */ pCurLeaf->uEdx = 0; /* reserved */ /* Set APICIdCoreIdSize to zero (use legacy method to determine the number of cores per cpu). * Set core count to 0, indicating 1 core. Adjust if we're in multi core mode on AMD. */ pCurLeaf->uEcx = 0; #ifdef VBOX_WITH_MULTI_CORE if ( pVM->cCpus > 1 && ( pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD || pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON)) pCurLeaf->uEcx |= (pVM->cCpus - 1) & UINT32_C(0xff); #endif uSubLeaf++; } /* Cpuid 0x80000009: Reserved * We zero this since we don't know what it may have been used for. */ cpumR3CpuIdZeroLeaf(pCpum, UINT32_C(0x80000009)); /* Cpuid 0x8000000a: SVM information on AMD, invalid on Intel. * AMD: EAX - SVM revision. * EBX - Number of ASIDs. * ECX - Reserved. * EDX - SVM Feature identification. */ if ( pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD || pCpum->GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON) { pExtFeatureLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x80000001), 0); if ( pExtFeatureLeaf && (pExtFeatureLeaf->uEcx & X86_CPUID_AMD_FEATURE_ECX_SVM)) { PCPUMCPUIDLEAF pSvmFeatureLeaf = cpumR3CpuIdGetExactLeaf(pCpum, 0x8000000a, 0); if (pSvmFeatureLeaf) { pSvmFeatureLeaf->uEax = 0x1; pSvmFeatureLeaf->uEbx = 0x8000; /** @todo figure out virtual NASID. */ pSvmFeatureLeaf->uEcx = 0; pSvmFeatureLeaf->uEdx &= ( X86_CPUID_SVM_FEATURE_EDX_NRIP_SAVE /** @todo Support other SVM features */ | X86_CPUID_SVM_FEATURE_EDX_FLUSH_BY_ASID | X86_CPUID_SVM_FEATURE_EDX_DECODE_ASSISTS); } else { /* Should never happen. */ LogRel(("CPUM: Warning! Expected CPUID leaf 0x8000000a not present! SVM features not exposed to the guest\n")); cpumR3CpuIdZeroLeaf(pCpum, UINT32_C(0x8000000a)); } } else { /* If SVM is not supported, this is reserved, zero out. */ cpumR3CpuIdZeroLeaf(pCpum, UINT32_C(0x8000000a)); } } else { /* Cpuid 0x8000000a: Reserved on Intel. * We zero this since we don't know what it may have been used for. */ cpumR3CpuIdZeroLeaf(pCpum, UINT32_C(0x8000000a)); } /* Cpuid 0x8000000b thru 0x80000018: Reserved * We clear these as we don't know what purpose they might have. */ for (uint32_t uLeaf = UINT32_C(0x8000000b); uLeaf <= UINT32_C(0x80000018); uLeaf++) cpumR3CpuIdZeroLeaf(pCpum, uLeaf); /* Cpuid 0x80000019: TLB configuration * Seems to be harmless, pass them thru as is. */ /* Cpuid 0x8000001a: Peformance optimization identifiers. * Strip anything we don't know what is or addresses feature we don't implement. */ uSubLeaf = 0; while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x8000001a), uSubLeaf)) != NULL) { pCurLeaf->uEax &= RT_BIT_32(0) /* FP128 - use 1x128-bit instead of 2x64-bit. */ | RT_BIT_32(1) /* MOVU - Prefere unaligned MOV over MOVL + MOVH. */ //| RT_BIT_32(2) /* FP256 - use 1x256-bit instead of 2x128-bit. */ ; pCurLeaf->uEbx = 0; /* reserved */ pCurLeaf->uEcx = 0; /* reserved */ pCurLeaf->uEdx = 0; /* reserved */ uSubLeaf++; } /* Cpuid 0x8000001b: Instruct based sampling (IBS) information. * Clear this as we don't currently virtualize this feature. */ cpumR3CpuIdZeroLeaf(pCpum, UINT32_C(0x8000001b)); /* Cpuid 0x8000001c: Lightweight profiling (LWP) information. * Clear this as we don't currently virtualize this feature. */ cpumR3CpuIdZeroLeaf(pCpum, UINT32_C(0x8000001c)); /* Cpuid 0x8000001d+ECX: Get cache configuration descriptors. * We need to sanitize the cores per cache (EAX[25:14]). * * This is very much the same as Intel's CPUID(4) leaf, except EAX[31:26] * and EDX[2] are reserved here, and EAX[14:25] is documented having a * slightly different meaning. */ uSubLeaf = 0; while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x8000001d), uSubLeaf)) != NULL) { #ifdef VBOX_WITH_MULTI_CORE uint32_t cCores = ((pCurLeaf->uEax >> 14) & 0xfff) + 1; if (cCores > pVM->cCpus) cCores = pVM->cCpus; pCurLeaf->uEax &= UINT32_C(0x00003fff); pCurLeaf->uEax |= ((cCores - 1) & 0xfff) << 14; #else pCurLeaf->uEax &= UINT32_C(0x00003fff); #endif uSubLeaf++; } /* Cpuid 0x8000001e: Get APIC / unit / node information. * If AMD, we configure it for our layout (on EMT(0)). In the multi-core * setup, we have one compute unit with all the cores in it. Single node. */ uSubLeaf = 0; while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0x8000001e), uSubLeaf)) != NULL) { pCurLeaf->uEax = 0; /* Extended APIC ID = EMT(0).idApic (== 0). */ if (pCurLeaf->fFlags & CPUMCPUIDLEAF_F_CONTAINS_APIC_ID) { #ifdef VBOX_WITH_MULTI_CORE pCurLeaf->uEbx = pVM->cCpus < 0x100 ? (pVM->cCpus - 1) << 8 : UINT32_C(0x0000ff00); /* Compute unit ID 0, core per unit. */ #else pCurLeaf->uEbx = 0; /* Compute unit ID 0, 1 core per unit. */ #endif pCurLeaf->uEcx = 0; /* Node ID 0, 1 node per CPU. */ } else { Assert(pCpum->GuestFeatures.enmCpuVendor != CPUMCPUVENDOR_AMD); Assert(pCpum->GuestFeatures.enmCpuVendor != CPUMCPUVENDOR_HYGON); pCurLeaf->uEbx = 0; /* Reserved. */ pCurLeaf->uEcx = 0; /* Reserved. */ } pCurLeaf->uEdx = 0; /* Reserved. */ uSubLeaf++; } /* Cpuid 0x8000001f...0x8ffffffd: Unknown. * We don't know these and what they mean, so remove them. */ cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves, UINT32_C(0x8000001f), UINT32_C(0x8ffffffd)); /* Cpuid 0x8ffffffe: Mystery AMD K6 leaf. * Just pass it thru for now. */ /* Cpuid 0x8fffffff: Mystery hammer time leaf! * Just pass it thru for now. */ /* Cpuid 0xc0000000: Centaur stuff. * Harmless, pass it thru. */ /* Cpuid 0xc0000001: Centaur features. * VIA: EAX - Family, model, stepping. * EDX - Centaur extended feature flags. Nothing interesting, except may * FEMMS (bit 5), but VIA marks it as 'reserved', so never mind. * EBX, ECX - reserved. * We keep EAX but strips the rest. */ uSubLeaf = 0; while ((pCurLeaf = cpumR3CpuIdGetExactLeaf(pCpum, UINT32_C(0xc0000001), uSubLeaf)) != NULL) { pCurLeaf->uEbx = 0; pCurLeaf->uEcx = 0; pCurLeaf->uEdx = 0; /* Bits 0 thru 9 are documented on sandpil.org, but we don't want them, except maybe 5 (FEMMS). */ uSubLeaf++; } /* Cpuid 0xc0000002: Old Centaur Current Performance Data. * We only have fixed stale values, but should be harmless. */ /* Cpuid 0xc0000003: Reserved. * We zero this since we don't know what it may have been used for. */ cpumR3CpuIdZeroLeaf(pCpum, UINT32_C(0xc0000003)); /* Cpuid 0xc0000004: Centaur Performance Info. * We only have fixed stale values, but should be harmless. */ /* Cpuid 0xc0000005...0xcfffffff: Unknown. * We don't know these and what they mean, so remove them. */ cpumR3CpuIdRemoveRange(pCpum->GuestInfo.paCpuIdLeavesR3, &pCpum->GuestInfo.cCpuIdLeaves, UINT32_C(0xc0000005), UINT32_C(0xcfffffff)); return VINF_SUCCESS; #undef PORTABLE_DISABLE_FEATURE_BIT #undef PORTABLE_CLEAR_BITS_WHEN } /** * Reads a value in /CPUM/IsaExts/ node. * * @returns VBox status code (error message raised). * @param pVM The cross context VM structure. (For errors.) * @param pIsaExts The /CPUM/IsaExts node (can be NULL). * @param pszValueName The value / extension name. * @param penmValue Where to return the choice. * @param enmDefault The default choice. */ static int cpumR3CpuIdReadIsaExtCfg(PVM pVM, PCFGMNODE pIsaExts, const char *pszValueName, CPUMISAEXTCFG *penmValue, CPUMISAEXTCFG enmDefault) { /* * Try integer encoding first. */ uint64_t uValue; int rc = CFGMR3QueryInteger(pIsaExts, pszValueName, &uValue); if (RT_SUCCESS(rc)) switch (uValue) { case 0: *penmValue = CPUMISAEXTCFG_DISABLED; break; case 1: *penmValue = CPUMISAEXTCFG_ENABLED_SUPPORTED; break; case 2: *penmValue = CPUMISAEXTCFG_ENABLED_ALWAYS; break; case 9: *penmValue = CPUMISAEXTCFG_ENABLED_PORTABLE; break; default: return VMSetError(pVM, VERR_CPUM_INVALID_CONFIG_VALUE, RT_SRC_POS, "Invalid config value for '/CPUM/IsaExts/%s': %llu (expected 0/'disabled', 1/'enabled', 2/'portable', or 9/'forced')", pszValueName, uValue); } /* * If missing, use default. */ else if (rc == VERR_CFGM_VALUE_NOT_FOUND || rc == VERR_CFGM_NO_PARENT) *penmValue = enmDefault; else { if (rc == VERR_CFGM_NOT_INTEGER) { /* * Not an integer, try read it as a string. */ char szValue[32]; rc = CFGMR3QueryString(pIsaExts, pszValueName, szValue, sizeof(szValue)); if (RT_SUCCESS(rc)) { RTStrToLower(szValue); size_t cchValue = strlen(szValue); #define EQ(a_str) (cchValue == sizeof(a_str) - 1U && memcmp(szValue, a_str, sizeof(a_str) - 1)) if ( EQ("disabled") || EQ("disable") || EQ("off") || EQ("no")) *penmValue = CPUMISAEXTCFG_DISABLED; else if (EQ("enabled") || EQ("enable") || EQ("on") || EQ("yes")) *penmValue = CPUMISAEXTCFG_ENABLED_SUPPORTED; else if (EQ("forced") || EQ("force") || EQ("always")) *penmValue = CPUMISAEXTCFG_ENABLED_ALWAYS; else if (EQ("portable")) *penmValue = CPUMISAEXTCFG_ENABLED_PORTABLE; else if (EQ("default") || EQ("def")) *penmValue = enmDefault; else return VMSetError(pVM, VERR_CPUM_INVALID_CONFIG_VALUE, RT_SRC_POS, "Invalid config value for '/CPUM/IsaExts/%s': '%s' (expected 0/'disabled', 1/'enabled', 2/'portable', or 9/'forced')", pszValueName, uValue); #undef EQ } } if (RT_FAILURE(rc)) return VMSetError(pVM, rc, RT_SRC_POS, "Error reading config value '/CPUM/IsaExts/%s': %Rrc", pszValueName, rc); } return VINF_SUCCESS; } /** * Reads a value in /CPUM/IsaExts/ node, forcing it to DISABLED if wanted. * * @returns VBox status code (error message raised). * @param pVM The cross context VM structure. (For errors.) * @param pIsaExts The /CPUM/IsaExts node (can be NULL). * @param pszValueName The value / extension name. * @param penmValue Where to return the choice. * @param enmDefault The default choice. * @param fAllowed Allowed choice. Applied both to the result and to * the default value. */ static int cpumR3CpuIdReadIsaExtCfgEx(PVM pVM, PCFGMNODE pIsaExts, const char *pszValueName, CPUMISAEXTCFG *penmValue, CPUMISAEXTCFG enmDefault, bool fAllowed) { int rc; if (fAllowed) rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, pszValueName, penmValue, enmDefault); else { rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, pszValueName, penmValue, false /*enmDefault*/); if (RT_SUCCESS(rc) && *penmValue == CPUMISAEXTCFG_ENABLED_ALWAYS) LogRel(("CPUM: Ignoring forced '%s'\n", pszValueName)); *penmValue = CPUMISAEXTCFG_DISABLED; } return rc; } /** * Reads a value in /CPUM/IsaExts/ node that used to be located in /CPUM/. * * @returns VBox status code (error message raised). * @param pVM The cross context VM structure. (For errors.) * @param pIsaExts The /CPUM/IsaExts node (can be NULL). * @param pCpumCfg The /CPUM node (can be NULL). * @param pszValueName The value / extension name. * @param penmValue Where to return the choice. * @param enmDefault The default choice. */ static int cpumR3CpuIdReadIsaExtCfgLegacy(PVM pVM, PCFGMNODE pIsaExts, PCFGMNODE pCpumCfg, const char *pszValueName, CPUMISAEXTCFG *penmValue, CPUMISAEXTCFG enmDefault) { if (CFGMR3Exists(pCpumCfg, pszValueName)) { if (!CFGMR3Exists(pIsaExts, pszValueName)) LogRel(("Warning: /CPUM/%s is deprecated, use /CPUM/IsaExts/%s instead.\n", pszValueName, pszValueName)); else return VMSetError(pVM, VERR_DUPLICATE, RT_SRC_POS, "Duplicate config values '/CPUM/%s' and '/CPUM/IsaExts/%s' - please remove the former!", pszValueName, pszValueName); bool fLegacy; int rc = CFGMR3QueryBoolDef(pCpumCfg, pszValueName, &fLegacy, enmDefault != CPUMISAEXTCFG_DISABLED); if (RT_SUCCESS(rc)) { *penmValue = fLegacy; return VINF_SUCCESS; } return VMSetError(pVM, VERR_DUPLICATE, RT_SRC_POS, "Error querying '/CPUM/%s': %Rrc", pszValueName, rc); } return cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, pszValueName, penmValue, enmDefault); } static int cpumR3CpuIdReadConfig(PVM pVM, PCPUMCPUIDCONFIG pConfig, PCFGMNODE pCpumCfg, bool fNestedPagingAndFullGuestExec) { int rc; /** @cfgm{/CPUM/PortableCpuIdLevel, 8-bit, 0, 3, 0} * When non-zero CPUID features that could cause portability issues will be * stripped. The higher the value the more features gets stripped. Higher * values should only be used when older CPUs are involved since it may * harm performance and maybe also cause problems with specific guests. */ rc = CFGMR3QueryU8Def(pCpumCfg, "PortableCpuIdLevel", &pVM->cpum.s.u8PortableCpuIdLevel, 0); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/GuestCpuName, string} * The name of the CPU we're to emulate. The default is the host CPU. * Note! CPUs other than "host" one is currently unsupported. */ rc = CFGMR3QueryStringDef(pCpumCfg, "GuestCpuName", pConfig->szCpuName, sizeof(pConfig->szCpuName), "host"); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/NT4LeafLimit, boolean, false} * Limit the number of standard CPUID leaves to 0..3 to prevent NT4 from * bugchecking with MULTIPROCESSOR_CONFIGURATION_NOT_SUPPORTED (0x3e). * This option corresponds somewhat to IA32_MISC_ENABLES.BOOT_NT4[bit 22]. */ rc = CFGMR3QueryBoolDef(pCpumCfg, "NT4LeafLimit", &pConfig->fNt4LeafLimit, false); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/InvariantTsc, boolean, true} * Pass-through the invariant TSC flag in 0x80000007 if available on the host * CPU. On AMD CPUs, users may wish to suppress it to avoid trouble from older * 64-bit linux guests which assume the presence of AMD performance counters * that we do not virtualize. */ rc = CFGMR3QueryBoolDef(pCpumCfg, "InvariantTsc", &pConfig->fInvariantTsc, true); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/ForceVme, boolean, false} * Always expose the VME (Virtual-8086 Mode Extensions) capability if true. * By default the flag is passed thru as is from the host CPU, except * on AMD Ryzen CPUs where it's masked to avoid trouble with XP/Server 2003 * guests and DOS boxes in general. */ rc = CFGMR3QueryBoolDef(pCpumCfg, "ForceVme", &pConfig->fForceVme, false); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/MaxIntelFamilyModelStep, uint32_t, UINT32_MAX} * Restrict the reported CPU family+model+stepping of intel CPUs. This is * probably going to be a temporary hack, so don't depend on this. * The 1st byte of the value is the stepping, the 2nd byte value is the model * number and the 3rd byte value is the family, and the 4th value must be zero. */ rc = CFGMR3QueryU32Def(pCpumCfg, "MaxIntelFamilyModelStep", &pConfig->uMaxIntelFamilyModelStep, UINT32_MAX); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/MaxStdLeaf, uint32_t, 0x00000016} * The last standard leaf to keep. The actual last value that is stored in EAX * is RT_MAX(CPUID[0].EAX,/CPUM/MaxStdLeaf). Leaves beyond the max leaf are * removed. (This works independently of and differently from NT4LeafLimit.) * The default is usually set to what we're able to reasonably sanitize. */ rc = CFGMR3QueryU32Def(pCpumCfg, "MaxStdLeaf", &pConfig->uMaxStdLeaf, UINT32_C(0x00000016)); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/MaxExtLeaf, uint32_t, 0x8000001e} * The last extended leaf to keep. The actual last value that is stored in EAX * is RT_MAX(CPUID[0x80000000].EAX,/CPUM/MaxStdLeaf). Leaves beyond the max * leaf are removed. The default is set to what we're able to sanitize. */ rc = CFGMR3QueryU32Def(pCpumCfg, "MaxExtLeaf", &pConfig->uMaxExtLeaf, UINT32_C(0x8000001e)); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/MaxCentaurLeaf, uint32_t, 0xc0000004} * The last extended leaf to keep. The actual last value that is stored in EAX * is RT_MAX(CPUID[0xc0000000].EAX,/CPUM/MaxCentaurLeaf). Leaves beyond the max * leaf are removed. The default is set to what we're able to sanitize. */ rc = CFGMR3QueryU32Def(pCpumCfg, "MaxCentaurLeaf", &pConfig->uMaxCentaurLeaf, UINT32_C(0xc0000004)); AssertLogRelRCReturn(rc, rc); bool fQueryNestedHwvirt = false #ifdef VBOX_WITH_NESTED_HWVIRT_SVM || pVM->cpum.s.HostFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD || pVM->cpum.s.HostFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON #endif #ifdef VBOX_WITH_NESTED_HWVIRT_VMX || pVM->cpum.s.HostFeatures.enmCpuVendor == CPUMCPUVENDOR_INTEL || pVM->cpum.s.HostFeatures.enmCpuVendor == CPUMCPUVENDOR_VIA #endif ; if (fQueryNestedHwvirt) { /** @cfgm{/CPUM/NestedHWVirt, bool, false} * Whether to expose the hardware virtualization (VMX/SVM) feature to the guest. * The default is false, and when enabled requires a 64-bit CPU with support for * nested-paging and AMD-V or unrestricted guest mode. */ rc = CFGMR3QueryBoolDef(pCpumCfg, "NestedHWVirt", &pConfig->fNestedHWVirt, false); AssertLogRelRCReturn(rc, rc); if (pConfig->fNestedHWVirt) { /** @todo Think about enabling this later with NEM/KVM. */ if (VM_IS_NEM_ENABLED(pVM)) { LogRel(("CPUM: Warning! Can't turn on nested VT-x/AMD-V when NEM is used! (later)\n")); pConfig->fNestedHWVirt = false; } else if (!fNestedPagingAndFullGuestExec) return VMSetError(pVM, VERR_CPUM_INVALID_HWVIRT_CONFIG, RT_SRC_POS, "Cannot enable nested VT-x/AMD-V without nested-paging and unrestricted guest execution!\n"); } } /* * Instruction Set Architecture (ISA) Extensions. */ PCFGMNODE pIsaExts = CFGMR3GetChild(pCpumCfg, "IsaExts"); if (pIsaExts) { rc = CFGMR3ValidateConfig(pIsaExts, "/CPUM/IsaExts/", "CMPXCHG16B" "|MONITOR" "|MWaitExtensions" "|SSE4.1" "|SSE4.2" "|XSAVE" "|AVX" "|AVX2" "|AESNI" "|PCLMUL" "|POPCNT" "|MOVBE" "|RDRAND" "|RDSEED" "|CLFLUSHOPT" "|FSGSBASE" "|PCID" "|INVPCID" "|FlushCmdMsr" "|ABM" "|SSE4A" "|MISALNSSE" "|3DNOWPRF" "|AXMMX" , "" /*pszValidNodes*/, "CPUM" /*pszWho*/, 0 /*uInstance*/); if (RT_FAILURE(rc)) return rc; } /** @cfgm{/CPUM/IsaExts/CMPXCHG16B, boolean, true} * Expose CMPXCHG16B to the guest if available. All host CPUs which support * hardware virtualization have it. */ rc = cpumR3CpuIdReadIsaExtCfgLegacy(pVM, pIsaExts, pCpumCfg, "CMPXCHG16B", &pConfig->enmCmpXchg16b, true); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/MONITOR, boolean, true} * Expose MONITOR/MWAIT instructions to the guest. */ rc = cpumR3CpuIdReadIsaExtCfgLegacy(pVM, pIsaExts, pCpumCfg, "MONITOR", &pConfig->enmMonitor, true); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/MWaitExtensions, boolean, false} * Expose MWAIT extended features to the guest. For now we expose just MWAIT * break on interrupt feature (bit 1). */ rc = cpumR3CpuIdReadIsaExtCfgLegacy(pVM, pIsaExts, pCpumCfg, "MWaitExtensions", &pConfig->enmMWaitExtensions, false); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/SSE4.1, boolean, true} * Expose SSE4.1 to the guest if available. */ rc = cpumR3CpuIdReadIsaExtCfgLegacy(pVM, pIsaExts, pCpumCfg, "SSE4.1", &pConfig->enmSse41, true); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/SSE4.2, boolean, true} * Expose SSE4.2 to the guest if available. */ rc = cpumR3CpuIdReadIsaExtCfgLegacy(pVM, pIsaExts, pCpumCfg, "SSE4.2", &pConfig->enmSse42, true); AssertLogRelRCReturn(rc, rc); bool const fMayHaveXSave = pVM->cpum.s.HostFeatures.fXSaveRstor && pVM->cpum.s.HostFeatures.fOpSysXSaveRstor && ( VM_IS_NEM_ENABLED(pVM) ? NEMHCGetFeatures(pVM) & NEM_FEAT_F_XSAVE_XRSTOR : VM_IS_EXEC_ENGINE_IEM(pVM) ? false /** @todo IEM and XSAVE @bugref{9898} */ : fNestedPagingAndFullGuestExec); uint64_t const fXStateHostMask = pVM->cpum.s.fXStateHostMask; /** @cfgm{/CPUM/IsaExts/XSAVE, boolean, depends} * Expose XSAVE/XRSTOR to the guest if available. For the time being the * default is to only expose this to VMs with nested paging and AMD-V or * unrestricted guest execution mode. Not possible to force this one without * host support at the moment. */ rc = cpumR3CpuIdReadIsaExtCfgEx(pVM, pIsaExts, "XSAVE", &pConfig->enmXSave, fNestedPagingAndFullGuestExec, fMayHaveXSave /*fAllowed*/); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/AVX, boolean, depends} * Expose the AVX instruction set extensions to the guest if available and * XSAVE is exposed too. For the time being the default is to only expose this * to VMs with nested paging and AMD-V or unrestricted guest execution mode. */ rc = cpumR3CpuIdReadIsaExtCfgEx(pVM, pIsaExts, "AVX", &pConfig->enmAvx, fNestedPagingAndFullGuestExec, fMayHaveXSave && pConfig->enmXSave && (fXStateHostMask & XSAVE_C_YMM) /*fAllowed*/); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/AVX2, boolean, depends} * Expose the AVX2 instruction set extensions to the guest if available and * XSAVE is exposed too. For the time being the default is to only expose this * to VMs with nested paging and AMD-V or unrestricted guest execution mode. */ rc = cpumR3CpuIdReadIsaExtCfgEx(pVM, pIsaExts, "AVX2", &pConfig->enmAvx2, fNestedPagingAndFullGuestExec /* temporarily */, fMayHaveXSave && pConfig->enmXSave && (fXStateHostMask & XSAVE_C_YMM) /*fAllowed*/); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/AESNI, isaextcfg, depends} * Whether to expose the AES instructions to the guest. For the time being the * default is to only do this for VMs with nested paging and AMD-V or * unrestricted guest mode. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "AESNI", &pConfig->enmAesNi, fNestedPagingAndFullGuestExec); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/PCLMUL, isaextcfg, depends} * Whether to expose the PCLMULQDQ instructions to the guest. For the time * being the default is to only do this for VMs with nested paging and AMD-V or * unrestricted guest mode. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "PCLMUL", &pConfig->enmPClMul, fNestedPagingAndFullGuestExec); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/POPCNT, isaextcfg, true} * Whether to expose the POPCNT instructions to the guest. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "POPCNT", &pConfig->enmPopCnt, CPUMISAEXTCFG_ENABLED_SUPPORTED); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/MOVBE, isaextcfg, depends} * Whether to expose the MOVBE instructions to the guest. For the time * being the default is to only do this for VMs with nested paging and AMD-V or * unrestricted guest mode. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "MOVBE", &pConfig->enmMovBe, fNestedPagingAndFullGuestExec); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/RDRAND, isaextcfg, depends} * Whether to expose the RDRAND instructions to the guest. For the time being * the default is to only do this for VMs with nested paging and AMD-V or * unrestricted guest mode. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "RDRAND", &pConfig->enmRdRand, fNestedPagingAndFullGuestExec); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/RDSEED, isaextcfg, depends} * Whether to expose the RDSEED instructions to the guest. For the time being * the default is to only do this for VMs with nested paging and AMD-V or * unrestricted guest mode. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "RDSEED", &pConfig->enmRdSeed, fNestedPagingAndFullGuestExec); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/CLFLUSHOPT, isaextcfg, depends} * Whether to expose the CLFLUSHOPT instructions to the guest. For the time * being the default is to only do this for VMs with nested paging and AMD-V or * unrestricted guest mode. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "CLFLUSHOPT", &pConfig->enmCLFlushOpt, fNestedPagingAndFullGuestExec); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/FSGSBASE, isaextcfg, true} * Whether to expose the read/write FSGSBASE instructions to the guest. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "FSGSBASE", &pConfig->enmFsGsBase, true); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/PCID, isaextcfg, true} * Whether to expose the PCID feature to the guest. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "PCID", &pConfig->enmPcid, pConfig->enmFsGsBase); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/INVPCID, isaextcfg, true} * Whether to expose the INVPCID instruction to the guest. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "INVPCID", &pConfig->enmInvpcid, pConfig->enmFsGsBase); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/FlushCmdMsr, isaextcfg, true} * Whether to expose the IA32_FLUSH_CMD MSR to the guest. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "FlushCmdMsr", &pConfig->enmFlushCmdMsr, CPUMISAEXTCFG_ENABLED_SUPPORTED); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/MdsClear, isaextcfg, true} * Whether to advertise the VERW and MDS related IA32_FLUSH_CMD MSR bits to * the guest. Requires FlushCmdMsr to be present too. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "MdsClear", &pConfig->enmMdsClear, CPUMISAEXTCFG_ENABLED_SUPPORTED); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/ArchCapMSr, isaextcfg, true} * Whether to expose the MSR_IA32_ARCH_CAPABILITIES MSR to the guest. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "ArchCapMsr", &pConfig->enmArchCapMsr, CPUMISAEXTCFG_ENABLED_SUPPORTED); AssertLogRelRCReturn(rc, rc); /* AMD: */ /** @cfgm{/CPUM/IsaExts/ABM, isaextcfg, true} * Whether to expose the AMD ABM instructions to the guest. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "ABM", &pConfig->enmAbm, CPUMISAEXTCFG_ENABLED_SUPPORTED); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/SSE4A, isaextcfg, depends} * Whether to expose the AMD SSE4A instructions to the guest. For the time * being the default is to only do this for VMs with nested paging and AMD-V or * unrestricted guest mode. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "SSE4A", &pConfig->enmSse4A, fNestedPagingAndFullGuestExec); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/MISALNSSE, isaextcfg, depends} * Whether to expose the AMD MisAlSse feature (MXCSR flag 17) to the guest. For * the time being the default is to only do this for VMs with nested paging and * AMD-V or unrestricted guest mode. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "MISALNSSE", &pConfig->enmMisAlnSse, fNestedPagingAndFullGuestExec); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/3DNOWPRF, isaextcfg, depends} * Whether to expose the AMD 3D Now! prefetch instructions to the guest. * For the time being the default is to only do this for VMs with nested paging * and AMD-V or unrestricted guest mode. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "3DNOWPRF", &pConfig->enm3dNowPrf, fNestedPagingAndFullGuestExec); AssertLogRelRCReturn(rc, rc); /** @cfgm{/CPUM/IsaExts/AXMMX, isaextcfg, depends} * Whether to expose the AMD's MMX Extensions to the guest. For the time being * the default is to only do this for VMs with nested paging and AMD-V or * unrestricted guest mode. */ rc = cpumR3CpuIdReadIsaExtCfg(pVM, pIsaExts, "AXMMX", &pConfig->enmAmdExtMmx, fNestedPagingAndFullGuestExec); AssertLogRelRCReturn(rc, rc); return VINF_SUCCESS; } /** * Initializes the emulated CPU's CPUID & MSR information. * * @returns VBox status code. * @param pVM The cross context VM structure. * @param pHostMsrs Pointer to the host MSRs. */ int cpumR3InitCpuIdAndMsrs(PVM pVM, PCCPUMMSRS pHostMsrs) { Assert(pHostMsrs); PCPUM pCpum = &pVM->cpum.s; PCFGMNODE pCpumCfg = CFGMR3GetChild(CFGMR3GetRoot(pVM), "CPUM"); /* * Set the fCpuIdApicFeatureVisible flags so the APIC can assume visibility * on construction and manage everything from here on. */ for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++) { PVMCPU pVCpu = pVM->apCpusR3[idCpu]; pVCpu->cpum.s.fCpuIdApicFeatureVisible = true; } /* * Read the configuration. */ CPUMCPUIDCONFIG Config; RT_ZERO(Config); bool const fNestedPagingAndFullGuestExec = VM_IS_NEM_ENABLED(pVM) || HMAreNestedPagingAndFullGuestExecEnabled(pVM); int rc = cpumR3CpuIdReadConfig(pVM, &Config, pCpumCfg, fNestedPagingAndFullGuestExec); AssertRCReturn(rc, rc); /* * Get the guest CPU data from the database and/or the host. * * The CPUID and MSRs are currently living on the regular heap to avoid * fragmenting the hyper heap (and because there isn't/wasn't any realloc * API for the hyper heap). This means special cleanup considerations. */ /** @todo The hyper heap will be removed ASAP, so the final destination is * now a fixed sized arrays in the VM structure. Maybe we can simplify * this allocation fun a little now? Or maybe it's too convenient for * the CPU reporter code... No time to figure that out now. */ rc = cpumR3DbGetCpuInfo(Config.szCpuName, &pCpum->GuestInfo); if (RT_FAILURE(rc)) return rc == VERR_CPUM_DB_CPU_NOT_FOUND ? VMSetError(pVM, rc, RT_SRC_POS, "Info on guest CPU '%s' could not be found. Please, select a different CPU.", Config.szCpuName) : rc; #if defined(RT_ARCH_AMD64) || defined(RT_ARCH_X86) if (pCpum->GuestInfo.fMxCsrMask & ~pVM->cpum.s.fHostMxCsrMask) { LogRel(("Stripping unsupported MXCSR bits from guest mask: %#x -> %#x (host: %#x)\n", pCpum->GuestInfo.fMxCsrMask, pCpum->GuestInfo.fMxCsrMask & pVM->cpum.s.fHostMxCsrMask, pVM->cpum.s.fHostMxCsrMask)); pCpum->GuestInfo.fMxCsrMask &= pVM->cpum.s.fHostMxCsrMask; } LogRel(("CPUM: MXCSR_MASK=%#x (host: %#x)\n", pCpum->GuestInfo.fMxCsrMask, pVM->cpum.s.fHostMxCsrMask)); #else LogRel(("CPUM: MXCSR_MASK=%#x\n", pCpum->GuestInfo.fMxCsrMask)); #endif /** @cfgm{/CPUM/MSRs/[Name]/[First|Last|Type|Value|...],} * Overrides the guest MSRs. */ rc = cpumR3LoadMsrOverrides(pVM, CFGMR3GetChild(pCpumCfg, "MSRs")); /** @cfgm{/CPUM/HostCPUID/[000000xx|800000xx|c000000x]/[eax|ebx|ecx|edx],32-bit} * Overrides the CPUID leaf values (from the host CPU usually) used for * calculating the guest CPUID leaves. This can be used to preserve the CPUID * values when moving a VM to a different machine. Another use is restricting * (or extending) the feature set exposed to the guest. */ if (RT_SUCCESS(rc)) rc = cpumR3LoadCpuIdOverrides(pVM, CFGMR3GetChild(pCpumCfg, "HostCPUID"), "HostCPUID"); if (RT_SUCCESS(rc) && CFGMR3GetChild(pCpumCfg, "CPUID")) /* 2nd override, now discontinued. */ rc = VMSetError(pVM, VERR_CFGM_CONFIG_UNKNOWN_NODE, RT_SRC_POS, "Found unsupported configuration node '/CPUM/CPUID/'. " "Please use IMachine::setCPUIDLeaf() instead."); CPUMMSRS GuestMsrs; RT_ZERO(GuestMsrs); /* * Pre-explode the CPUID info. */ if (RT_SUCCESS(rc)) rc = cpumCpuIdExplodeFeaturesX86(pCpum->GuestInfo.paCpuIdLeavesR3, pCpum->GuestInfo.cCpuIdLeaves, &GuestMsrs, &pCpum->GuestFeatures); /* * Sanitize the cpuid information passed on to the guest. */ if (RT_SUCCESS(rc)) { rc = cpumR3CpuIdSanitize(pVM, pCpum, &Config); if (RT_SUCCESS(rc)) { cpumR3CpuIdLimitLeaves(pCpum, &Config); cpumR3CpuIdLimitIntelFamModStep(pCpum, &Config); } } /* * Setup MSRs introduced in microcode updates or that are otherwise not in * the CPU profile, but are advertised in the CPUID info we just sanitized. */ if (RT_SUCCESS(rc)) rc = cpumR3MsrReconcileWithCpuId(pVM); /* * MSR fudging. */ if (RT_SUCCESS(rc)) { /** @cfgm{/CPUM/FudgeMSRs, boolean, true} * Fudges some common MSRs if not present in the selected CPU database entry. * This is for trying to keep VMs running when moved between different hosts * and different CPU vendors. */ bool fEnable; rc = CFGMR3QueryBoolDef(pCpumCfg, "FudgeMSRs", &fEnable, true); AssertRC(rc); if (RT_SUCCESS(rc) && fEnable) { rc = cpumR3MsrApplyFudge(pVM); AssertLogRelRC(rc); } } if (RT_SUCCESS(rc)) { /* * Move the MSR and CPUID arrays over to the static VM structure allocations * and explode guest CPU features again. */ void *pvFree = pCpum->GuestInfo.paCpuIdLeavesR3; rc = cpumR3CpuIdInstallAndExplodeLeaves(pVM, pCpum, pCpum->GuestInfo.paCpuIdLeavesR3, pCpum->GuestInfo.cCpuIdLeaves, &GuestMsrs); RTMemFree(pvFree); AssertFatalMsg(pCpum->GuestInfo.cMsrRanges <= RT_ELEMENTS(pCpum->GuestInfo.aMsrRanges), ("%u\n", pCpum->GuestInfo.cMsrRanges)); memcpy(pCpum->GuestInfo.aMsrRanges, pCpum->GuestInfo.paMsrRangesR3, sizeof(pCpum->GuestInfo.paMsrRangesR3[0]) * pCpum->GuestInfo.cMsrRanges); RTMemFree(pCpum->GuestInfo.paMsrRangesR3); pCpum->GuestInfo.paMsrRangesR3 = pCpum->GuestInfo.aMsrRanges; AssertLogRelRCReturn(rc, rc); /* * Finally, initialize guest VMX MSRs. * * This needs to be done -after- exploding guest features and sanitizing CPUID leaves * as constructing VMX capabilities MSRs rely on CPU feature bits like long mode, * unrestricted-guest execution, CR4 feature bits and possibly more in the future. */ /** @todo r=bird: given that long mode never used to be enabled before the * VMINITCOMPLETED_RING0 state, and we're a lot earlier here in ring-3 * init, the above comment cannot be entirely accurate. */ if (pVM->cpum.s.GuestFeatures.fVmx) { Assert(Config.fNestedHWVirt); cpumR3InitVmxGuestFeaturesAndMsrs(pVM, pCpumCfg, &pHostMsrs->hwvirt.vmx, &GuestMsrs.hwvirt.vmx); /* Copy MSRs to all VCPUs */ PCVMXMSRS pVmxMsrs = &GuestMsrs.hwvirt.vmx; for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++) { PVMCPU pVCpu = pVM->apCpusR3[idCpu]; memcpy(&pVCpu->cpum.s.Guest.hwvirt.vmx.Msrs, pVmxMsrs, sizeof(*pVmxMsrs)); } } /* * Some more configuration that we're applying at the end of everything * via the CPUMR3SetGuestCpuIdFeature API. */ /* Check if 64-bit guest supported was enabled. */ bool fEnable64bit; rc = CFGMR3QueryBoolDef(pCpumCfg, "Enable64bit", &fEnable64bit, false); AssertRCReturn(rc, rc); if (fEnable64bit) { /* In case of a CPU upgrade: */ CPUMR3SetGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_SEP); CPUMR3SetGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_SYSCALL); /* (Long mode only on Intel CPUs.) */ CPUMR3SetGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_PAE); CPUMR3SetGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_LAHF); CPUMR3SetGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_NX); /* The actual feature: */ CPUMR3SetGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_LONG_MODE); } /* Check if PAE was explicitely enabled by the user. */ bool fEnable; rc = CFGMR3QueryBoolDef(CFGMR3GetRoot(pVM), "EnablePAE", &fEnable, fEnable64bit); AssertRCReturn(rc, rc); if (fEnable && !pVM->cpum.s.GuestFeatures.fPae) CPUMR3SetGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_PAE); /* We don't normally enable NX for raw-mode, so give the user a chance to force it on. */ rc = CFGMR3QueryBoolDef(pCpumCfg, "EnableNX", &fEnable, fEnable64bit); AssertRCReturn(rc, rc); if (fEnable && !pVM->cpum.s.GuestFeatures.fNoExecute) CPUMR3SetGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_NX); /* Check if speculation control is enabled. */ rc = CFGMR3QueryBoolDef(pCpumCfg, "SpecCtrl", &fEnable, false); AssertRCReturn(rc, rc); if (fEnable) CPUMR3SetGuestCpuIdFeature(pVM, CPUMCPUIDFEATURE_SPEC_CTRL); else { /* * Set the "SSBD-not-needed" flag to work around a bug in some Linux kernels when the VIRT_SPEC_CTL * feature is not exposed on AMD CPUs and there is only 1 vCPU configured. * This was observed with kernel "4.15.0-29-generic #31~16.04.1-Ubuntu" but more versions are likely affected. * * The kernel doesn't initialize a lock and causes a NULL pointer exception later on when configuring SSBD: * EIP: _raw_spin_lock+0x14/0x30 * EFLAGS: 00010046 CPU: 0 * EAX: 00000000 EBX: 00000001 ECX: 00000004 EDX: 00000000 * ESI: 00000000 EDI: 00000000 EBP: ee023f1c ESP: ee023f18 * DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 * CR0: 80050033 CR2: 00000004 CR3: 3671c180 CR4: 000006f0 * Call Trace: * speculative_store_bypass_update+0x8e/0x180 * ssb_prctl_set+0xc0/0xe0 * arch_seccomp_spec_mitigate+0x1d/0x20 * do_seccomp+0x3cb/0x610 * SyS_seccomp+0x16/0x20 * do_fast_syscall_32+0x7f/0x1d0 * entry_SYSENTER_32+0x4e/0x7c * * The lock would've been initialized in process.c:speculative_store_bypass_ht_init() called from two places in smpboot.c. * First when a secondary CPU is started and second in native_smp_prepare_cpus() which is not called in a single vCPU environment. * * As spectre control features are completely disabled anyway when we arrived here there is no harm done in informing the * guest to not even try. */ if ( pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD || pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON) { PCPUMCPUIDLEAF pLeaf = cpumR3CpuIdGetExactLeaf(&pVM->cpum.s, UINT32_C(0x80000008), 0); if (pLeaf) { pLeaf->uEbx |= X86_CPUID_AMD_EFEID_EBX_NO_SSBD_REQUIRED; LogRel(("CPUM: Set SSBD not required flag for AMD to work around some buggy Linux kernels!\n")); } } } return VINF_SUCCESS; } /* * Failed before switching to hyper heap. */ RTMemFree(pCpum->GuestInfo.paCpuIdLeavesR3); pCpum->GuestInfo.paCpuIdLeavesR3 = NULL; RTMemFree(pCpum->GuestInfo.paMsrRangesR3); pCpum->GuestInfo.paMsrRangesR3 = NULL; return rc; } /** * Sets a CPUID feature bit during VM initialization. * * Since the CPUID feature bits are generally related to CPU features, other * CPUM configuration like MSRs can also be modified by calls to this API. * * @param pVM The cross context VM structure. * @param enmFeature The feature to set. */ VMMR3_INT_DECL(void) CPUMR3SetGuestCpuIdFeature(PVM pVM, CPUMCPUIDFEATURE enmFeature) { PCPUMCPUIDLEAF pLeaf; PCPUMMSRRANGE pMsrRange; #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) # define CHECK_X86_HOST_FEATURE_RET(a_fFeature, a_szFeature) \ if (!pVM->cpum.s.HostFeatures. a_fFeature) \ { \ LogRel(("CPUM: WARNING! Can't turn on " a_szFeature " when the host doesn't support it!\n")); \ return; \ } else do { } while (0) #else # define CHECK_X86_HOST_FEATURE_RET(a_fFeature, a_szFeature) do { } while (0) #endif #define GET_8000_0001_CHECK_X86_HOST_FEATURE_RET(a_fFeature, a_szFeature) \ do \ { \ pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001)); \ if (!pLeaf) \ { \ LogRel(("CPUM: WARNING! Can't turn on " a_szFeature " when no 0x80000001 CPUID leaf!\n")); \ return; \ } \ CHECK_X86_HOST_FEATURE_RET(a_fFeature,a_szFeature); \ } while (0) switch (enmFeature) { /* * Set the APIC bit in both feature masks. */ case CPUMCPUIDFEATURE_APIC: pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001)); if (pLeaf && (pLeaf->fFlags & CPUMCPUIDLEAF_F_CONTAINS_APIC)) pVM->cpum.s.aGuestCpuIdPatmStd[1].uEdx = pLeaf->uEdx |= X86_CPUID_FEATURE_EDX_APIC; pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001)); if (pLeaf && (pLeaf->fFlags & CPUMCPUIDLEAF_F_CONTAINS_APIC)) pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx |= X86_CPUID_AMD_FEATURE_EDX_APIC; pVM->cpum.s.GuestFeatures.fApic = 1; /* Make sure we've got the APICBASE MSR present. */ pMsrRange = cpumLookupMsrRange(pVM, MSR_IA32_APICBASE); if (!pMsrRange) { static CPUMMSRRANGE const s_ApicBase = { /*.uFirst =*/ MSR_IA32_APICBASE, /*.uLast =*/ MSR_IA32_APICBASE, /*.enmRdFn =*/ kCpumMsrRdFn_Ia32ApicBase, /*.enmWrFn =*/ kCpumMsrWrFn_Ia32ApicBase, /*.offCpumCpu =*/ UINT16_MAX, /*.fReserved =*/ 0, /*.uValue =*/ 0, /*.fWrIgnMask =*/ 0, /*.fWrGpMask =*/ 0, /*.szName = */ "IA32_APIC_BASE" }; int rc = CPUMR3MsrRangesInsert(pVM, &s_ApicBase); AssertLogRelRC(rc); } LogRel(("CPUM: SetGuestCpuIdFeature: Enabled xAPIC\n")); break; /* * Set the x2APIC bit in the standard feature mask. * Note! ASSUMES CPUMCPUIDFEATURE_APIC is called first. */ case CPUMCPUIDFEATURE_X2APIC: pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001)); if (pLeaf) pVM->cpum.s.aGuestCpuIdPatmStd[1].uEcx = pLeaf->uEcx |= X86_CPUID_FEATURE_ECX_X2APIC; pVM->cpum.s.GuestFeatures.fX2Apic = 1; /* Make sure the MSR doesn't GP or ignore the EXTD bit. */ pMsrRange = cpumLookupMsrRange(pVM, MSR_IA32_APICBASE); if (pMsrRange) { pMsrRange->fWrGpMask &= ~MSR_IA32_APICBASE_EXTD; pMsrRange->fWrIgnMask &= ~MSR_IA32_APICBASE_EXTD; } LogRel(("CPUM: SetGuestCpuIdFeature: Enabled x2APIC\n")); break; /* * Set the sysenter/sysexit bit in the standard feature mask. * Assumes the caller knows what it's doing! (host must support these) */ case CPUMCPUIDFEATURE_SEP: CHECK_X86_HOST_FEATURE_RET(fSysEnter, "SEP"); pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001)); if (pLeaf) pVM->cpum.s.aGuestCpuIdPatmStd[1].uEdx = pLeaf->uEdx |= X86_CPUID_FEATURE_EDX_SEP; pVM->cpum.s.GuestFeatures.fSysEnter = 1; LogRel(("CPUM: SetGuestCpuIdFeature: Enabled SYSENTER/EXIT\n")); break; /* * Set the syscall/sysret bit in the extended feature mask. * Assumes the caller knows what it's doing! (host must support these) */ case CPUMCPUIDFEATURE_SYSCALL: GET_8000_0001_CHECK_X86_HOST_FEATURE_RET(fSysCall, "SYSCALL/SYSRET"); /* Valid for both Intel and AMD CPUs, although only in 64 bits mode for Intel. */ pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx |= X86_CPUID_EXT_FEATURE_EDX_SYSCALL; pVM->cpum.s.GuestFeatures.fSysCall = 1; LogRel(("CPUM: SetGuestCpuIdFeature: Enabled SYSCALL/RET\n")); break; /* * Set the PAE bit in both feature masks. * Assumes the caller knows what it's doing! (host must support these) */ case CPUMCPUIDFEATURE_PAE: pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001)); if (pLeaf) pVM->cpum.s.aGuestCpuIdPatmStd[1].uEdx = pLeaf->uEdx |= X86_CPUID_FEATURE_EDX_PAE; pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001)); if ( pLeaf && ( pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD || pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON)) pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx |= X86_CPUID_AMD_FEATURE_EDX_PAE; pVM->cpum.s.GuestFeatures.fPae = 1; LogRel(("CPUM: SetGuestCpuIdFeature: Enabled PAE\n")); break; /* * Set the LONG MODE bit in the extended feature mask. * Assumes the caller knows what it's doing! (host must support these) */ case CPUMCPUIDFEATURE_LONG_MODE: GET_8000_0001_CHECK_X86_HOST_FEATURE_RET(fLongMode, "LONG MODE"); /* Valid for both Intel and AMD. */ pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx |= X86_CPUID_EXT_FEATURE_EDX_LONG_MODE; pVM->cpum.s.GuestFeatures.fLongMode = 1; pVM->cpum.s.GuestFeatures.cVmxMaxPhysAddrWidth = pVM->cpum.s.GuestFeatures.cMaxPhysAddrWidth; if (pVM->cpum.s.GuestFeatures.fVmx) for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++) { PVMCPU pVCpu = pVM->apCpusR3[idCpu]; pVCpu->cpum.s.Guest.hwvirt.vmx.Msrs.u64Basic &= ~VMX_BASIC_PHYSADDR_WIDTH_32BIT; } LogRel(("CPUM: SetGuestCpuIdFeature: Enabled LONG MODE\n")); break; /* * Set the NX/XD bit in the extended feature mask. * Assumes the caller knows what it's doing! (host must support these) */ case CPUMCPUIDFEATURE_NX: GET_8000_0001_CHECK_X86_HOST_FEATURE_RET(fNoExecute, "NX/XD"); /* Valid for both Intel and AMD. */ pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx |= X86_CPUID_EXT_FEATURE_EDX_NX; pVM->cpum.s.GuestFeatures.fNoExecute = 1; LogRel(("CPUM: SetGuestCpuIdFeature: Enabled NX\n")); break; /* * Set the LAHF/SAHF support in 64-bit mode. * Assumes the caller knows what it's doing! (host must support this) */ case CPUMCPUIDFEATURE_LAHF: GET_8000_0001_CHECK_X86_HOST_FEATURE_RET(fLahfSahf, "LAHF/SAHF"); /* Valid for both Intel and AMD. */ pVM->cpum.s.aGuestCpuIdPatmExt[1].uEcx = pLeaf->uEcx |= X86_CPUID_EXT_FEATURE_ECX_LAHF_SAHF; pVM->cpum.s.GuestFeatures.fLahfSahf = 1; LogRel(("CPUM: SetGuestCpuIdFeature: Enabled LAHF/SAHF\n")); break; /* * Set the RDTSCP support bit. * Assumes the caller knows what it's doing! (host must support this) */ case CPUMCPUIDFEATURE_RDTSCP: if (pVM->cpum.s.u8PortableCpuIdLevel > 0) return; GET_8000_0001_CHECK_X86_HOST_FEATURE_RET(fRdTscP, "RDTSCP"); pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001)); /* Valid for both Intel and AMD. */ pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx |= X86_CPUID_EXT_FEATURE_EDX_RDTSCP; pVM->cpum.s.HostFeatures.fRdTscP = 1; LogRel(("CPUM: SetGuestCpuIdFeature: Enabled RDTSCP.\n")); break; /* * Set the Hypervisor Present bit in the standard feature mask. */ case CPUMCPUIDFEATURE_HVP: pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001)); if (pLeaf) pVM->cpum.s.aGuestCpuIdPatmStd[1].uEcx = pLeaf->uEcx |= X86_CPUID_FEATURE_ECX_HVP; pVM->cpum.s.GuestFeatures.fHypervisorPresent = 1; LogRel(("CPUM: SetGuestCpuIdFeature: Enabled Hypervisor Present bit\n")); break; /* * Set up the speculation control CPUID bits and MSRs. This is quite complicated * on Intel CPUs, and different on AMDs. */ case CPUMCPUIDFEATURE_SPEC_CTRL: if (pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_INTEL) { pLeaf = cpumR3CpuIdGetExactLeaf(&pVM->cpum.s, UINT32_C(0x00000007), 0); if ( !pLeaf || !(pVM->cpum.s.HostFeatures.fIbpb || pVM->cpum.s.HostFeatures.fIbrs)) { LogRel(("CPUM: WARNING! Can't turn on Speculation Control when the host doesn't support it!\n")); return; } /* The feature can be enabled. Let's see what we can actually do. */ pVM->cpum.s.GuestFeatures.fSpeculationControl = 1; /* We will only expose STIBP if IBRS is present to keep things simpler (simple is not an option). */ if (pVM->cpum.s.HostFeatures.fIbrs) { pLeaf->uEdx |= X86_CPUID_STEXT_FEATURE_EDX_IBRS_IBPB; pVM->cpum.s.GuestFeatures.fIbrs = 1; if (pVM->cpum.s.HostFeatures.fStibp) { pLeaf->uEdx |= X86_CPUID_STEXT_FEATURE_EDX_STIBP; pVM->cpum.s.GuestFeatures.fStibp = 1; } /* Make sure we have the speculation control MSR... */ pMsrRange = cpumLookupMsrRange(pVM, MSR_IA32_SPEC_CTRL); if (!pMsrRange) { static CPUMMSRRANGE const s_SpecCtrl = { /*.uFirst =*/ MSR_IA32_SPEC_CTRL, /*.uLast =*/ MSR_IA32_SPEC_CTRL, /*.enmRdFn =*/ kCpumMsrRdFn_Ia32SpecCtrl, /*.enmWrFn =*/ kCpumMsrWrFn_Ia32SpecCtrl, /*.offCpumCpu =*/ UINT16_MAX, /*.fReserved =*/ 0, /*.uValue =*/ 0, /*.fWrIgnMask =*/ 0, /*.fWrGpMask =*/ 0, /*.szName = */ "IA32_SPEC_CTRL" }; int rc = CPUMR3MsrRangesInsert(pVM, &s_SpecCtrl); AssertLogRelRC(rc); } /* ... and the predictor command MSR. */ pMsrRange = cpumLookupMsrRange(pVM, MSR_IA32_PRED_CMD); if (!pMsrRange) { /** @todo incorrect fWrGpMask. */ static CPUMMSRRANGE const s_SpecCtrl = { /*.uFirst =*/ MSR_IA32_PRED_CMD, /*.uLast =*/ MSR_IA32_PRED_CMD, /*.enmRdFn =*/ kCpumMsrRdFn_WriteOnly, /*.enmWrFn =*/ kCpumMsrWrFn_Ia32PredCmd, /*.offCpumCpu =*/ UINT16_MAX, /*.fReserved =*/ 0, /*.uValue =*/ 0, /*.fWrIgnMask =*/ 0, /*.fWrGpMask =*/ 0, /*.szName = */ "IA32_PRED_CMD" }; int rc = CPUMR3MsrRangesInsert(pVM, &s_SpecCtrl); AssertLogRelRC(rc); } } if (pVM->cpum.s.HostFeatures.fArchCap) { /* Install the architectural capabilities MSR. */ pMsrRange = cpumLookupMsrRange(pVM, MSR_IA32_ARCH_CAPABILITIES); if (!pMsrRange) { static CPUMMSRRANGE const s_ArchCaps = { /*.uFirst =*/ MSR_IA32_ARCH_CAPABILITIES, /*.uLast =*/ MSR_IA32_ARCH_CAPABILITIES, /*.enmRdFn =*/ kCpumMsrRdFn_Ia32ArchCapabilities, /*.enmWrFn =*/ kCpumMsrWrFn_ReadOnly, /*.offCpumCpu =*/ UINT16_MAX, /*.fReserved =*/ 0, /*.uValue =*/ 0, /*.fWrIgnMask =*/ 0, /*.fWrGpMask =*/ UINT64_MAX, /*.szName = */ "IA32_ARCH_CAPABILITIES" }; int rc = CPUMR3MsrRangesInsert(pVM, &s_ArchCaps); AssertLogRelRC(rc); } /* Advertise IBRS_ALL if present at this point... */ if (pVM->cpum.s.HostFeatures.fArchCap & MSR_IA32_ARCH_CAP_F_IBRS_ALL) VMCC_FOR_EACH_VMCPU_STMT(pVM, pVCpu->cpum.s.GuestMsrs.msr.ArchCaps |= MSR_IA32_ARCH_CAP_F_IBRS_ALL); } LogRel(("CPUM: SetGuestCpuIdFeature: Enabled Speculation Control.\n")); } else if ( pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD || pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON) { /* The precise details of AMD's implementation are not yet clear. */ } break; default: AssertMsgFailed(("enmFeature=%d\n", enmFeature)); break; } /** @todo can probably kill this as this API is now init time only... */ for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++) { PVMCPU pVCpu = pVM->apCpusR3[idCpu]; pVCpu->cpum.s.fChanged |= CPUM_CHANGED_CPUID; } #undef GET_8000_0001_CHECK_X86_HOST_FEATURE_RET #undef CHECK_X86_HOST_FEATURE_RET } /** * Queries a CPUID feature bit. * * @returns boolean for feature presence * @param pVM The cross context VM structure. * @param enmFeature The feature to query. * @deprecated Use the cpum.ro.GuestFeatures directly instead. */ VMMR3_INT_DECL(bool) CPUMR3GetGuestCpuIdFeature(PVM pVM, CPUMCPUIDFEATURE enmFeature) { switch (enmFeature) { case CPUMCPUIDFEATURE_APIC: return pVM->cpum.s.GuestFeatures.fApic; case CPUMCPUIDFEATURE_X2APIC: return pVM->cpum.s.GuestFeatures.fX2Apic; case CPUMCPUIDFEATURE_SYSCALL: return pVM->cpum.s.GuestFeatures.fSysCall; case CPUMCPUIDFEATURE_SEP: return pVM->cpum.s.GuestFeatures.fSysEnter; case CPUMCPUIDFEATURE_PAE: return pVM->cpum.s.GuestFeatures.fPae; case CPUMCPUIDFEATURE_NX: return pVM->cpum.s.GuestFeatures.fNoExecute; case CPUMCPUIDFEATURE_LAHF: return pVM->cpum.s.GuestFeatures.fLahfSahf; case CPUMCPUIDFEATURE_LONG_MODE: return pVM->cpum.s.GuestFeatures.fLongMode; case CPUMCPUIDFEATURE_RDTSCP: return pVM->cpum.s.GuestFeatures.fRdTscP; case CPUMCPUIDFEATURE_HVP: return pVM->cpum.s.GuestFeatures.fHypervisorPresent; case CPUMCPUIDFEATURE_SPEC_CTRL: return pVM->cpum.s.GuestFeatures.fSpeculationControl; case CPUMCPUIDFEATURE_INVALID: case CPUMCPUIDFEATURE_32BIT_HACK: break; } AssertFailed(); return false; } /** * Clears a CPUID feature bit. * * @param pVM The cross context VM structure. * @param enmFeature The feature to clear. * * @deprecated Probably better to default the feature to disabled and only allow * setting (enabling) it during construction. */ VMMR3_INT_DECL(void) CPUMR3ClearGuestCpuIdFeature(PVM pVM, CPUMCPUIDFEATURE enmFeature) { PCPUMCPUIDLEAF pLeaf; switch (enmFeature) { case CPUMCPUIDFEATURE_APIC: Assert(!pVM->cpum.s.GuestFeatures.fApic); /* We only expect this call during init. No MSR adjusting needed. */ pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001)); if (pLeaf) pVM->cpum.s.aGuestCpuIdPatmStd[1].uEdx = pLeaf->uEdx &= ~X86_CPUID_FEATURE_EDX_APIC; pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001)); if (pLeaf && (pLeaf->fFlags & CPUMCPUIDLEAF_F_CONTAINS_APIC)) pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx &= ~X86_CPUID_AMD_FEATURE_EDX_APIC; pVM->cpum.s.GuestFeatures.fApic = 0; Log(("CPUM: ClearGuestCpuIdFeature: Disabled xAPIC\n")); break; case CPUMCPUIDFEATURE_X2APIC: Assert(!pVM->cpum.s.GuestFeatures.fX2Apic); /* We only expect this call during init. No MSR adjusting needed. */ pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001)); if (pLeaf) pVM->cpum.s.aGuestCpuIdPatmStd[1].uEcx = pLeaf->uEcx &= ~X86_CPUID_FEATURE_ECX_X2APIC; pVM->cpum.s.GuestFeatures.fX2Apic = 0; Log(("CPUM: ClearGuestCpuIdFeature: Disabled x2APIC\n")); break; #if 0 case CPUMCPUIDFEATURE_PAE: pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001)); if (pLeaf) pVM->cpum.s.aGuestCpuIdPatmStd[1].uEdx = pLeaf->uEdx &= ~X86_CPUID_FEATURE_EDX_PAE; pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001)); if ( pLeaf && ( pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_AMD || pVM->cpum.s.GuestFeatures.enmCpuVendor == CPUMCPUVENDOR_HYGON)) pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx &= ~X86_CPUID_AMD_FEATURE_EDX_PAE; pVM->cpum.s.GuestFeatures.fPae = 0; Log(("CPUM: ClearGuestCpuIdFeature: Disabled PAE!\n")); break; case CPUMCPUIDFEATURE_LONG_MODE: pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001)); if (pLeaf) pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx &= ~X86_CPUID_EXT_FEATURE_EDX_LONG_MODE; pVM->cpum.s.GuestFeatures.fLongMode = 0; pVM->cpum.s.GuestFeatures.cVmxMaxPhysAddrWidth = 32; if (pVM->cpum.s.GuestFeatures.fVmx) for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++) { PVMCPU pVCpu = pVM->apCpusR3[idCpu]; pVCpu->cpum.s.Guest.hwvirt.vmx.Msrs.u64Basic |= VMX_BASIC_PHYSADDR_WIDTH_32BIT; } break; case CPUMCPUIDFEATURE_LAHF: pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001)); if (pLeaf) pVM->cpum.s.aGuestCpuIdPatmExt[1].uEcx = pLeaf->uEcx &= ~X86_CPUID_EXT_FEATURE_ECX_LAHF_SAHF; pVM->cpum.s.GuestFeatures.fLahfSahf = 0; break; #endif case CPUMCPUIDFEATURE_RDTSCP: pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001)); if (pLeaf) pVM->cpum.s.aGuestCpuIdPatmExt[1].uEdx = pLeaf->uEdx &= ~X86_CPUID_EXT_FEATURE_EDX_RDTSCP; pVM->cpum.s.GuestFeatures.fRdTscP = 0; Log(("CPUM: ClearGuestCpuIdFeature: Disabled RDTSCP!\n")); break; #if 0 case CPUMCPUIDFEATURE_HVP: pLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001)); if (pLeaf) pVM->cpum.s.aGuestCpuIdPatmStd[1].uEcx = pLeaf->uEcx &= ~X86_CPUID_FEATURE_ECX_HVP; pVM->cpum.s.GuestFeatures.fHypervisorPresent = 0; break; case CPUMCPUIDFEATURE_SPEC_CTRL: pLeaf = cpumR3CpuIdGetExactLeaf(&pVM->cpum.s, UINT32_C(0x00000007), 0); if (pLeaf) pLeaf->uEdx &= ~(X86_CPUID_STEXT_FEATURE_EDX_IBRS_IBPB | X86_CPUID_STEXT_FEATURE_EDX_STIBP); VMCC_FOR_EACH_VMCPU_STMT(pVM, pVCpu->cpum.s.GuestMsrs.msr.ArchCaps &= ~MSR_IA32_ARCH_CAP_F_IBRS_ALL); Log(("CPUM: ClearGuestCpuIdFeature: Disabled speculation control!\n")); break; #endif default: AssertMsgFailed(("enmFeature=%d\n", enmFeature)); break; } for (VMCPUID idCpu = 0; idCpu < pVM->cCpus; idCpu++) { PVMCPU pVCpu = pVM->apCpusR3[idCpu]; pVCpu->cpum.s.fChanged |= CPUM_CHANGED_CPUID; } } /** * Do some final polishing after all calls to CPUMR3SetGuestCpuIdFeature and * CPUMR3ClearGuestCpuIdFeature are (probably) done. * * @param pVM The cross context VM structure. */ void cpumR3CpuIdRing3InitDone(PVM pVM) { /* * Do not advertise NX w/o PAE, seems to confuse windows 7 (black screen very * early in real mode). */ PCPUMCPUIDLEAF pStdLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x00000001)); PCPUMCPUIDLEAF pExtLeaf = cpumCpuIdGetLeaf(pVM, UINT32_C(0x80000001)); if (pStdLeaf && pExtLeaf) { if ( !(pStdLeaf->uEdx & X86_CPUID_FEATURE_EDX_PAE) && (pExtLeaf->uEdx & X86_CPUID_EXT_FEATURE_EDX_NX)) pExtLeaf->uEdx &= ~X86_CPUID_EXT_FEATURE_EDX_NX; } } /* * * * Saved state related code. * Saved state related code. * Saved state related code. * * */ /** * Called both in pass 0 and the final pass. * * @param pVM The cross context VM structure. * @param pSSM The saved state handle. */ void cpumR3SaveCpuId(PVM pVM, PSSMHANDLE pSSM) { /* * Save all the CPU ID leaves. */ SSMR3PutU32(pSSM, sizeof(pVM->cpum.s.GuestInfo.paCpuIdLeavesR3[0])); SSMR3PutU32(pSSM, pVM->cpum.s.GuestInfo.cCpuIdLeaves); SSMR3PutMem(pSSM, pVM->cpum.s.GuestInfo.paCpuIdLeavesR3, sizeof(pVM->cpum.s.GuestInfo.paCpuIdLeavesR3[0]) * pVM->cpum.s.GuestInfo.cCpuIdLeaves); SSMR3PutMem(pSSM, &pVM->cpum.s.GuestInfo.DefCpuId, sizeof(pVM->cpum.s.GuestInfo.DefCpuId)); /* * Save a good portion of the raw CPU IDs as well as they may come in * handy when validating features for raw mode. */ #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) CPUMCPUID aRawStd[16]; for (unsigned i = 0; i < RT_ELEMENTS(aRawStd); i++) ASMCpuIdExSlow(i, 0, 0, 0, &aRawStd[i].uEax, &aRawStd[i].uEbx, &aRawStd[i].uEcx, &aRawStd[i].uEdx); SSMR3PutU32(pSSM, RT_ELEMENTS(aRawStd)); SSMR3PutMem(pSSM, &aRawStd[0], sizeof(aRawStd)); CPUMCPUID aRawExt[32]; for (unsigned i = 0; i < RT_ELEMENTS(aRawExt); i++) ASMCpuIdExSlow(i | UINT32_C(0x80000000), 0, 0, 0, &aRawExt[i].uEax, &aRawExt[i].uEbx, &aRawExt[i].uEcx, &aRawExt[i].uEdx); SSMR3PutU32(pSSM, RT_ELEMENTS(aRawExt)); SSMR3PutMem(pSSM, &aRawExt[0], sizeof(aRawExt)); #else /* Two zero counts on non-x86 hosts. */ SSMR3PutU32(pSSM, 0); SSMR3PutU32(pSSM, 0); #endif } static int cpumR3LoadOneOldGuestCpuIdArray(PSSMHANDLE pSSM, uint32_t uBase, PCPUMCPUIDLEAF *ppaLeaves, uint32_t *pcLeaves) { uint32_t cCpuIds; int rc = SSMR3GetU32(pSSM, &cCpuIds); if (RT_SUCCESS(rc)) { if (cCpuIds < 64) { for (uint32_t i = 0; i < cCpuIds; i++) { CPUMCPUID CpuId; rc = SSMR3GetMem(pSSM, &CpuId, sizeof(CpuId)); if (RT_FAILURE(rc)) break; CPUMCPUIDLEAF NewLeaf; NewLeaf.uLeaf = uBase + i; NewLeaf.uSubLeaf = 0; NewLeaf.fSubLeafMask = 0; NewLeaf.uEax = CpuId.uEax; NewLeaf.uEbx = CpuId.uEbx; NewLeaf.uEcx = CpuId.uEcx; NewLeaf.uEdx = CpuId.uEdx; NewLeaf.fFlags = 0; rc = cpumR3CpuIdInsert(NULL /* pVM */, ppaLeaves, pcLeaves, &NewLeaf); } } else rc = VERR_SSM_DATA_UNIT_FORMAT_CHANGED; } if (RT_FAILURE(rc)) { RTMemFree(*ppaLeaves); *ppaLeaves = NULL; *pcLeaves = 0; } return rc; } static int cpumR3LoadGuestCpuIdArray(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, PCPUMCPUIDLEAF *ppaLeaves, uint32_t *pcLeaves) { *ppaLeaves = NULL; *pcLeaves = 0; int rc; if (uVersion > CPUM_SAVED_STATE_VERSION_PUT_STRUCT) { /* * The new format. Starts by declaring the leave size and count. */ uint32_t cbLeaf; SSMR3GetU32(pSSM, &cbLeaf); uint32_t cLeaves; rc = SSMR3GetU32(pSSM, &cLeaves); if (RT_SUCCESS(rc)) { if (cbLeaf == sizeof(**ppaLeaves)) { if (cLeaves <= CPUM_CPUID_MAX_LEAVES) { /* * Load the leaves one by one. * * The uPrev stuff is a kludge for working around a week worth of bad saved * states during the CPUID revamp in March 2015. We saved too many leaves * due to a bug in cpumR3CpuIdInstallAndExplodeLeaves, thus ending up with * garbage entires at the end of the array when restoring. We also had * a subleaf insertion bug that triggered with the leaf 4 stuff below, * this kludge doesn't deal correctly with that, but who cares... */ uint32_t uPrev = 0; for (uint32_t i = 0; i < cLeaves && RT_SUCCESS(rc); i++) { CPUMCPUIDLEAF Leaf; rc = SSMR3GetMem(pSSM, &Leaf, sizeof(Leaf)); if (RT_SUCCESS(rc)) { if ( uVersion != CPUM_SAVED_STATE_VERSION_BAD_CPUID_COUNT || Leaf.uLeaf >= uPrev) { rc = cpumR3CpuIdInsert(NULL /* pVM */, ppaLeaves, pcLeaves, &Leaf); uPrev = Leaf.uLeaf; } else uPrev = UINT32_MAX; } } } else rc = SSMR3SetLoadError(pSSM, VERR_TOO_MANY_CPUID_LEAVES, RT_SRC_POS, "Too many CPUID leaves: %#x, max %#x", cLeaves, CPUM_CPUID_MAX_LEAVES); } else rc = SSMR3SetLoadError(pSSM, VERR_SSM_DATA_UNIT_FORMAT_CHANGED, RT_SRC_POS, "CPUMCPUIDLEAF size differs: saved=%#x, our=%#x", cbLeaf, sizeof(**ppaLeaves)); } } else { /* * The old format with its three inflexible arrays. */ rc = cpumR3LoadOneOldGuestCpuIdArray(pSSM, UINT32_C(0x00000000), ppaLeaves, pcLeaves); if (RT_SUCCESS(rc)) rc = cpumR3LoadOneOldGuestCpuIdArray(pSSM, UINT32_C(0x80000000), ppaLeaves, pcLeaves); if (RT_SUCCESS(rc)) rc = cpumR3LoadOneOldGuestCpuIdArray(pSSM, UINT32_C(0xc0000000), ppaLeaves, pcLeaves); if (RT_SUCCESS(rc)) { /* * Fake up leaf 4 on intel like we used to do in CPUMGetGuestCpuId earlier. */ PCPUMCPUIDLEAF pLeaf = cpumCpuIdGetLeafInt(*ppaLeaves, *pcLeaves, 0, 0); if ( pLeaf && RTX86IsIntelCpu(pLeaf->uEbx, pLeaf->uEcx, pLeaf->uEdx)) { CPUMCPUIDLEAF Leaf; Leaf.uLeaf = 4; Leaf.fSubLeafMask = UINT32_MAX; Leaf.uSubLeaf = 0; Leaf.uEdx = UINT32_C(0); /* 3 flags, 0 is fine. */ Leaf.uEcx = UINT32_C(63); /* sets - 1 */ Leaf.uEbx = (UINT32_C(7) << 22) /* associativity -1 */ | (UINT32_C(0) << 12) /* phys line partitions - 1 */ | UINT32_C(63); /* system coherency line size - 1 */ Leaf.uEax = (RT_MIN(pVM->cCpus - 1, UINT32_C(0x3f)) << 26) /* cores per package - 1 */ | (UINT32_C(0) << 14) /* threads per cache - 1 */ | (UINT32_C(1) << 5) /* cache level */ | UINT32_C(1); /* cache type (data) */ Leaf.fFlags = 0; rc = cpumR3CpuIdInsert(NULL /* pVM */, ppaLeaves, pcLeaves, &Leaf); if (RT_SUCCESS(rc)) { Leaf.uSubLeaf = 1; /* Should've been cache type 2 (code), but buggy code made it data. */ rc = cpumR3CpuIdInsert(NULL /* pVM */, ppaLeaves, pcLeaves, &Leaf); } if (RT_SUCCESS(rc)) { Leaf.uSubLeaf = 2; /* Should've been cache type 3 (unified), but buggy code made it data. */ Leaf.uEcx = 4095; /* sets - 1 */ Leaf.uEbx &= UINT32_C(0x003fffff); /* associativity - 1 */ Leaf.uEbx |= UINT32_C(23) << 22; Leaf.uEax &= UINT32_C(0xfc003fff); /* threads per cache - 1 */ Leaf.uEax |= RT_MIN(pVM->cCpus - 1, UINT32_C(0xfff)) << 14; Leaf.uEax &= UINT32_C(0xffffff1f); /* level */ Leaf.uEax |= UINT32_C(2) << 5; rc = cpumR3CpuIdInsert(NULL /* pVM */, ppaLeaves, pcLeaves, &Leaf); } } } } return rc; } /** * Loads the CPU ID leaves saved by pass 0, inner worker. * * @returns VBox status code. * @param pVM The cross context VM structure. * @param pSSM The saved state handle. * @param uVersion The format version. * @param paLeaves Guest CPUID leaves loaded from the state. * @param cLeaves The number of leaves in @a paLeaves. * @param pMsrs The guest MSRs. */ int cpumR3LoadCpuIdInner(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, PCPUMCPUIDLEAF paLeaves, uint32_t cLeaves, PCCPUMMSRS pMsrs) { AssertMsgReturn(uVersion >= CPUM_SAVED_STATE_VERSION_VER3_2, ("%u\n", uVersion), VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION); #if !defined(RT_ARCH_AMD64) && !defined(RT_ARCH_X86) AssertMsgFailed(("Port me!")); #endif /* * Continue loading the state into stack buffers. */ CPUMCPUID GuestDefCpuId; int rc = SSMR3GetMem(pSSM, &GuestDefCpuId, sizeof(GuestDefCpuId)); AssertRCReturn(rc, rc); CPUMCPUID aRawStd[16]; uint32_t cRawStd; rc = SSMR3GetU32(pSSM, &cRawStd); AssertRCReturn(rc, rc); if (cRawStd > RT_ELEMENTS(aRawStd)) return VERR_SSM_DATA_UNIT_FORMAT_CHANGED; rc = SSMR3GetMem(pSSM, &aRawStd[0], cRawStd * sizeof(aRawStd[0])); AssertRCReturn(rc, rc); for (uint32_t i = cRawStd; i < RT_ELEMENTS(aRawStd); i++) #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) ASMCpuIdExSlow(i, 0, 0, 0, &aRawStd[i].uEax, &aRawStd[i].uEbx, &aRawStd[i].uEcx, &aRawStd[i].uEdx); #else RT_ZERO(aRawStd[i]); #endif CPUMCPUID aRawExt[32]; uint32_t cRawExt; rc = SSMR3GetU32(pSSM, &cRawExt); AssertRCReturn(rc, rc); if (cRawExt > RT_ELEMENTS(aRawExt)) return VERR_SSM_DATA_UNIT_FORMAT_CHANGED; rc = SSMR3GetMem(pSSM, &aRawExt[0], cRawExt * sizeof(aRawExt[0])); AssertRCReturn(rc, rc); for (uint32_t i = cRawExt; i < RT_ELEMENTS(aRawExt); i++) #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) ASMCpuIdExSlow(i | UINT32_C(0x80000000), 0, 0, 0, &aRawExt[i].uEax, &aRawExt[i].uEbx, &aRawExt[i].uEcx, &aRawExt[i].uEdx); #else RT_ZERO(aRawExt[i]); #endif /* * Get the raw CPU IDs for the current host. */ CPUMCPUID aHostRawStd[16]; #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) for (unsigned i = 0; i < RT_ELEMENTS(aHostRawStd); i++) ASMCpuIdExSlow(i, 0, 0, 0, &aHostRawStd[i].uEax, &aHostRawStd[i].uEbx, &aHostRawStd[i].uEcx, &aHostRawStd[i].uEdx); #else RT_ZERO(aHostRawStd); #endif CPUMCPUID aHostRawExt[32]; #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) for (unsigned i = 0; i < RT_ELEMENTS(aHostRawExt); i++) ASMCpuIdExSlow(i | UINT32_C(0x80000000), 0, 0, 0, &aHostRawExt[i].uEax, &aHostRawExt[i].uEbx, &aHostRawExt[i].uEcx, &aHostRawExt[i].uEdx); #else RT_ZERO(aHostRawExt); #endif /* * Get the host and guest overrides so we don't reject the state because * some feature was enabled thru these interfaces. * Note! We currently only need the feature leaves, so skip rest. */ PCFGMNODE pOverrideCfg = CFGMR3GetChild(CFGMR3GetRoot(pVM), "CPUM/HostCPUID"); CPUMCPUID aHostOverrideStd[2]; memcpy(&aHostOverrideStd[0], &aHostRawStd[0], sizeof(aHostOverrideStd)); cpumR3CpuIdInitLoadOverrideSet(UINT32_C(0x00000000), &aHostOverrideStd[0], RT_ELEMENTS(aHostOverrideStd), pOverrideCfg); CPUMCPUID aHostOverrideExt[2]; memcpy(&aHostOverrideExt[0], &aHostRawExt[0], sizeof(aHostOverrideExt)); cpumR3CpuIdInitLoadOverrideSet(UINT32_C(0x80000000), &aHostOverrideExt[0], RT_ELEMENTS(aHostOverrideExt), pOverrideCfg); /* * This can be skipped. */ bool fStrictCpuIdChecks; CFGMR3QueryBoolDef(CFGMR3GetChild(CFGMR3GetRoot(pVM), "CPUM"), "StrictCpuIdChecks", &fStrictCpuIdChecks, true); /* * Define a bunch of macros for simplifying the santizing/checking code below. */ /* Generic expression + failure message. */ #define CPUID_CHECK_RET(expr, fmt) \ do { \ if (!(expr)) \ { \ char *pszMsg = RTStrAPrintf2 fmt; /* lack of variadic macros sucks */ \ if (fStrictCpuIdChecks) \ { \ int rcCpuid = SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, "%s", pszMsg); \ RTStrFree(pszMsg); \ return rcCpuid; \ } \ LogRel(("CPUM: %s\n", pszMsg)); \ RTStrFree(pszMsg); \ } \ } while (0) #define CPUID_CHECK_WRN(expr, fmt) \ do { \ if (!(expr)) \ LogRel(fmt); \ } while (0) /* For comparing two values and bitch if they differs. */ #define CPUID_CHECK2_RET(what, host, saved) \ do { \ if ((host) != (saved)) \ { \ if (fStrictCpuIdChecks) \ return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, \ N_(#what " mismatch: host=%#x saved=%#x"), (host), (saved)); \ LogRel(("CPUM: " #what " differs: host=%#x saved=%#x\n", (host), (saved))); \ } \ } while (0) #define CPUID_CHECK2_WRN(what, host, saved) \ do { \ if ((host) != (saved)) \ LogRel(("CPUM: " #what " differs: host=%#x saved=%#x\n", (host), (saved))); \ } while (0) /* For checking raw cpu features (raw mode). */ #define CPUID_RAW_FEATURE_RET(set, reg, bit) \ do { \ if ((aHostRaw##set [1].reg & bit) != (aRaw##set [1].reg & bit)) \ { \ if (fStrictCpuIdChecks) \ return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, \ N_(#bit " mismatch: host=%d saved=%d"), \ !!(aHostRaw##set [1].reg & (bit)), !!(aRaw##set [1].reg & (bit)) ); \ LogRel(("CPUM: " #bit" differs: host=%d saved=%d\n", \ !!(aHostRaw##set [1].reg & (bit)), !!(aRaw##set [1].reg & (bit)) )); \ } \ } while (0) #define CPUID_RAW_FEATURE_WRN(set, reg, bit) \ do { \ if ((aHostRaw##set [1].reg & bit) != (aRaw##set [1].reg & bit)) \ LogRel(("CPUM: " #bit" differs: host=%d saved=%d\n", \ !!(aHostRaw##set [1].reg & (bit)), !!(aRaw##set [1].reg & (bit)) )); \ } while (0) #define CPUID_RAW_FEATURE_IGN(set, reg, bit) do { } while (0) /* For checking guest features. */ #define CPUID_GST_FEATURE_RET(set, reg, bit) \ do { \ if ( (aGuestCpuId##set [1].reg & bit) \ && !(aHostRaw##set [1].reg & bit) \ && !(aHostOverride##set [1].reg & bit) \ ) \ { \ if (fStrictCpuIdChecks) \ return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, \ N_(#bit " is not supported by the host but has already exposed to the guest")); \ LogRel(("CPUM: " #bit " is not supported by the host but has already exposed to the guest\n")); \ } \ } while (0) #define CPUID_GST_FEATURE_WRN(set, reg, bit) \ do { \ if ( (aGuestCpuId##set [1].reg & bit) \ && !(aHostRaw##set [1].reg & bit) \ && !(aHostOverride##set [1].reg & bit) \ ) \ LogRel(("CPUM: " #bit " is not supported by the host but has already exposed to the guest\n")); \ } while (0) #define CPUID_GST_FEATURE_EMU(set, reg, bit) \ do { \ if ( (aGuestCpuId##set [1].reg & bit) \ && !(aHostRaw##set [1].reg & bit) \ && !(aHostOverride##set [1].reg & bit) \ ) \ LogRel(("CPUM: Warning - " #bit " is not supported by the host but already exposed to the guest. This may impact performance.\n")); \ } while (0) #define CPUID_GST_FEATURE_IGN(set, reg, bit) do { } while (0) /* For checking guest features if AMD guest CPU. */ #define CPUID_GST_AMD_FEATURE_RET(set, reg, bit) \ do { \ if ( (aGuestCpuId##set [1].reg & bit) \ && fGuestAmd \ && (!fGuestAmd || !(aHostRaw##set [1].reg & bit)) \ && !(aHostOverride##set [1].reg & bit) \ ) \ { \ if (fStrictCpuIdChecks) \ return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, \ N_(#bit " is not supported by the host but has already exposed to the guest")); \ LogRel(("CPUM: " #bit " is not supported by the host but has already exposed to the guest\n")); \ } \ } while (0) #define CPUID_GST_AMD_FEATURE_WRN(set, reg, bit) \ do { \ if ( (aGuestCpuId##set [1].reg & bit) \ && fGuestAmd \ && (!fGuestAmd || !(aHostRaw##set [1].reg & bit)) \ && !(aHostOverride##set [1].reg & bit) \ ) \ LogRel(("CPUM: " #bit " is not supported by the host but has already exposed to the guest\n")); \ } while (0) #define CPUID_GST_AMD_FEATURE_EMU(set, reg, bit) \ do { \ if ( (aGuestCpuId##set [1].reg & bit) \ && fGuestAmd \ && (!fGuestAmd || !(aHostRaw##set [1].reg & bit)) \ && !(aHostOverride##set [1].reg & bit) \ ) \ LogRel(("CPUM: Warning - " #bit " is not supported by the host but already exposed to the guest. This may impact performance.\n")); \ } while (0) #define CPUID_GST_AMD_FEATURE_IGN(set, reg, bit) do { } while (0) /* For checking AMD features which have a corresponding bit in the standard range. (Intel defines very few bits in the extended feature sets.) */ #define CPUID_GST_FEATURE2_RET(reg, ExtBit, StdBit) \ do { \ if ( (aGuestCpuIdExt [1].reg & (ExtBit)) \ && !(fHostAmd \ ? aHostRawExt[1].reg & (ExtBit) \ : aHostRawStd[1].reg & (StdBit)) \ && !(aHostOverrideExt[1].reg & (ExtBit)) \ ) \ { \ if (fStrictCpuIdChecks) \ return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, \ N_(#ExtBit " is not supported by the host but has already exposed to the guest")); \ LogRel(("CPUM: " #ExtBit " is not supported by the host but has already exposed to the guest\n")); \ } \ } while (0) #define CPUID_GST_FEATURE2_WRN(reg, ExtBit, StdBit) \ do { \ if ( (aGuestCpuId[1].reg & (ExtBit)) \ && !(fHostAmd \ ? aHostRawExt[1].reg & (ExtBit) \ : aHostRawStd[1].reg & (StdBit)) \ && !(aHostOverrideExt[1].reg & (ExtBit)) \ ) \ LogRel(("CPUM: " #ExtBit " is not supported by the host but has already exposed to the guest\n")); \ } while (0) #define CPUID_GST_FEATURE2_EMU(reg, ExtBit, StdBit) \ do { \ if ( (aGuestCpuIdExt [1].reg & (ExtBit)) \ && !(fHostAmd \ ? aHostRawExt[1].reg & (ExtBit) \ : aHostRawStd[1].reg & (StdBit)) \ && !(aHostOverrideExt[1].reg & (ExtBit)) \ ) \ LogRel(("CPUM: Warning - " #ExtBit " is not supported by the host but already exposed to the guest. This may impact performance.\n")); \ } while (0) #define CPUID_GST_FEATURE2_IGN(reg, ExtBit, StdBit) do { } while (0) /* * Verify that we can support the features already exposed to the guest on * this host. * * Most of the features we're emulating requires intercepting instruction * and doing it the slow way, so there is no need to warn when they aren't * present in the host CPU. Thus we use IGN instead of EMU on these. * * Trailing comments: * "EMU" - Possible to emulate, could be lots of work and very slow. * "EMU?" - Can this be emulated? */ CPUMCPUID aGuestCpuIdStd[2]; RT_ZERO(aGuestCpuIdStd); cpumR3CpuIdGetLeafLegacy(paLeaves, cLeaves, 1, 0, &aGuestCpuIdStd[1]); /* CPUID(1).ecx */ CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_SSE3); // -> EMU CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_PCLMUL); // -> EMU? CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_DTES64); // -> EMU? CPUID_GST_FEATURE_IGN(Std, uEcx, X86_CPUID_FEATURE_ECX_MONITOR); CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_CPLDS); // -> EMU? CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_VMX); // -> EMU CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_SMX); // -> EMU CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_EST); // -> EMU CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_TM2); // -> EMU? CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_SSSE3); // -> EMU CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_CNTXID); // -> EMU CPUID_GST_FEATURE_IGN(Std, uEcx, X86_CPUID_FEATURE_ECX_SDBG); CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_FMA); // -> EMU? what's this? CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_CX16); // -> EMU? CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_TPRUPDATE);//-> EMU CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_PDCM); // -> EMU CPUID_GST_FEATURE_RET(Std, uEcx, RT_BIT_32(16) /*reserved*/); CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_PCID); CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_DCA); // -> EMU? CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_SSE4_1); // -> EMU CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_SSE4_2); // -> EMU CPUID_GST_FEATURE_IGN(Std, uEcx, X86_CPUID_FEATURE_ECX_X2APIC); CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_MOVBE); // -> EMU CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_POPCNT); // -> EMU CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_TSCDEADL); CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_AES); // -> EMU CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_XSAVE); // -> EMU CPUID_GST_FEATURE_IGN(Std, uEcx, X86_CPUID_FEATURE_ECX_OSXSAVE); CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_AVX); // -> EMU? CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_F16C); CPUID_GST_FEATURE_RET(Std, uEcx, X86_CPUID_FEATURE_ECX_RDRAND); CPUID_GST_FEATURE_IGN(Std, uEcx, X86_CPUID_FEATURE_ECX_HVP); // Normally not set by host /* CPUID(1).edx */ CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_FPU); CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_VME); CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_DE); // -> EMU? CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_PSE); CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_TSC); // -> EMU CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_MSR); // -> EMU CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_PAE); CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_MCE); CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_CX8); // -> EMU? CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_APIC); CPUID_GST_FEATURE_RET(Std, uEdx, RT_BIT_32(10) /*reserved*/); CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_SEP); CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_MTRR); CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_PGE); CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_MCA); CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_CMOV); // -> EMU CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_PAT); CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_PSE36); CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_PSN); CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_CLFSH); // -> EMU CPUID_GST_FEATURE_RET(Std, uEdx, RT_BIT_32(20) /*reserved*/); CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_DS); // -> EMU? CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_ACPI); // -> EMU? CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_MMX); // -> EMU CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_FXSR); // -> EMU CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_SSE); // -> EMU CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_SSE2); // -> EMU CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_SS); // -> EMU? CPUID_GST_FEATURE_IGN(Std, uEdx, X86_CPUID_FEATURE_EDX_HTT); // -> EMU? CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_TM); // -> EMU? CPUID_GST_FEATURE_RET(Std, uEdx, RT_BIT_32(30) /*JMPE/IA64*/); // -> EMU CPUID_GST_FEATURE_RET(Std, uEdx, X86_CPUID_FEATURE_EDX_PBE); // -> EMU? /* CPUID(0x80000000). */ CPUMCPUID aGuestCpuIdExt[2]; RT_ZERO(aGuestCpuIdExt); if (cpumR3CpuIdGetLeafLegacy(paLeaves, cLeaves, UINT32_C(0x80000001), 0, &aGuestCpuIdExt[1])) { /** @todo deal with no 0x80000001 on the host. */ bool const fHostAmd = RTX86IsAmdCpu(aHostRawStd[0].uEbx, aHostRawStd[0].uEcx, aHostRawStd[0].uEdx) || RTX86IsHygonCpu(aHostRawStd[0].uEbx, aHostRawStd[0].uEcx, aHostRawStd[0].uEdx); bool const fGuestAmd = RTX86IsAmdCpu(aGuestCpuIdExt[0].uEbx, aGuestCpuIdExt[0].uEcx, aGuestCpuIdExt[0].uEdx) || RTX86IsHygonCpu(aGuestCpuIdExt[0].uEbx, aGuestCpuIdExt[0].uEcx, aGuestCpuIdExt[0].uEdx); /* CPUID(0x80000001).ecx */ CPUID_GST_FEATURE_WRN(Ext, uEcx, X86_CPUID_EXT_FEATURE_ECX_LAHF_SAHF); // -> EMU CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_CMPL); // -> EMU CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_SVM); // -> EMU CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_EXT_APIC);// ??? CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_CR8L); // -> EMU CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_ABM); // -> EMU CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_SSE4A); // -> EMU CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_MISALNSSE);//-> EMU CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_3DNOWPRF);// -> EMU CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_OSVW); // -> EMU? CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_IBS); // -> EMU CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_XOP); // -> EMU CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_SKINIT); // -> EMU CPUID_GST_AMD_FEATURE_RET(Ext, uEcx, X86_CPUID_AMD_FEATURE_ECX_WDT); // -> EMU CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(14)); CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(15)); CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(16)); CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(17)); CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(18)); CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(19)); CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(20)); CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(21)); CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(22)); CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(23)); CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(24)); CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(25)); CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(26)); CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(27)); CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(28)); CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(29)); CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(30)); CPUID_GST_AMD_FEATURE_WRN(Ext, uEcx, RT_BIT_32(31)); /* CPUID(0x80000001).edx */ CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_FPU, X86_CPUID_FEATURE_EDX_FPU); // -> EMU CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_VME, X86_CPUID_FEATURE_EDX_VME); // -> EMU CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_DE, X86_CPUID_FEATURE_EDX_DE); // -> EMU CPUID_GST_FEATURE2_IGN( uEdx, X86_CPUID_AMD_FEATURE_EDX_PSE, X86_CPUID_FEATURE_EDX_PSE); CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_TSC, X86_CPUID_FEATURE_EDX_TSC); // -> EMU CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_MSR, X86_CPUID_FEATURE_EDX_MSR); // -> EMU CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_PAE, X86_CPUID_FEATURE_EDX_PAE); CPUID_GST_FEATURE2_IGN( uEdx, X86_CPUID_AMD_FEATURE_EDX_MCE, X86_CPUID_FEATURE_EDX_MCE); CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_CX8, X86_CPUID_FEATURE_EDX_CX8); // -> EMU? CPUID_GST_FEATURE2_IGN( uEdx, X86_CPUID_AMD_FEATURE_EDX_APIC, X86_CPUID_FEATURE_EDX_APIC); CPUID_GST_AMD_FEATURE_WRN(Ext, uEdx, RT_BIT_32(10) /*reserved*/); CPUID_GST_FEATURE_IGN( Ext, uEdx, X86_CPUID_EXT_FEATURE_EDX_SYSCALL); // On Intel: long mode only. CPUID_GST_FEATURE2_IGN( uEdx, X86_CPUID_AMD_FEATURE_EDX_MTRR, X86_CPUID_FEATURE_EDX_MTRR); CPUID_GST_FEATURE2_IGN( uEdx, X86_CPUID_AMD_FEATURE_EDX_PGE, X86_CPUID_FEATURE_EDX_PGE); CPUID_GST_FEATURE2_IGN( uEdx, X86_CPUID_AMD_FEATURE_EDX_MCA, X86_CPUID_FEATURE_EDX_MCA); CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_CMOV, X86_CPUID_FEATURE_EDX_CMOV); // -> EMU CPUID_GST_FEATURE2_IGN( uEdx, X86_CPUID_AMD_FEATURE_EDX_PAT, X86_CPUID_FEATURE_EDX_PAT); CPUID_GST_FEATURE2_IGN( uEdx, X86_CPUID_AMD_FEATURE_EDX_PSE36, X86_CPUID_FEATURE_EDX_PSE36); CPUID_GST_AMD_FEATURE_WRN(Ext, uEdx, RT_BIT_32(18) /*reserved*/); CPUID_GST_AMD_FEATURE_WRN(Ext, uEdx, RT_BIT_32(19) /*reserved*/); CPUID_GST_FEATURE_RET( Ext, uEdx, X86_CPUID_EXT_FEATURE_EDX_NX); CPUID_GST_FEATURE_WRN( Ext, uEdx, RT_BIT_32(21) /*reserved*/); CPUID_GST_FEATURE_RET( Ext, uEdx, X86_CPUID_AMD_FEATURE_EDX_AXMMX); CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_MMX, X86_CPUID_FEATURE_EDX_MMX); // -> EMU CPUID_GST_FEATURE2_RET( uEdx, X86_CPUID_AMD_FEATURE_EDX_FXSR, X86_CPUID_FEATURE_EDX_FXSR); // -> EMU CPUID_GST_AMD_FEATURE_RET(Ext, uEdx, X86_CPUID_AMD_FEATURE_EDX_FFXSR); CPUID_GST_AMD_FEATURE_RET(Ext, uEdx, X86_CPUID_EXT_FEATURE_EDX_PAGE1GB); CPUID_GST_AMD_FEATURE_RET(Ext, uEdx, X86_CPUID_EXT_FEATURE_EDX_RDTSCP); CPUID_GST_FEATURE_IGN( Ext, uEdx, RT_BIT_32(28) /*reserved*/); CPUID_GST_FEATURE_RET( Ext, uEdx, X86_CPUID_EXT_FEATURE_EDX_LONG_MODE); CPUID_GST_AMD_FEATURE_RET(Ext, uEdx, X86_CPUID_AMD_FEATURE_EDX_3DNOW_EX); CPUID_GST_AMD_FEATURE_RET(Ext, uEdx, X86_CPUID_AMD_FEATURE_EDX_3DNOW); } /** @todo check leaf 7 */ /* CPUID(d) - XCR0 stuff - takes ECX as input. * ECX=0: EAX - Valid bits in XCR0[31:0]. * EBX - Maximum state size as per current XCR0 value. * ECX - Maximum state size for all supported features. * EDX - Valid bits in XCR0[63:32]. * ECX=1: EAX - Various X-features. * EBX - Maximum state size as per current XCR0|IA32_XSS value. * ECX - Valid bits in IA32_XSS[31:0]. * EDX - Valid bits in IA32_XSS[63:32]. * ECX=N, where N in 2..63 and indicates a bit in XCR0 and/or IA32_XSS, * if the bit invalid all four registers are set to zero. * EAX - The state size for this feature. * EBX - The state byte offset of this feature. * ECX - Bit 0 indicates whether this sub-leaf maps to a valid IA32_XSS bit (=1) or a valid XCR0 bit (=0). * EDX - Reserved, but is set to zero if invalid sub-leaf index. */ uint64_t fGuestXcr0Mask = 0; PCPUMCPUIDLEAF pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0x0000000d), 0); if ( pCurLeaf && (aGuestCpuIdStd[1].uEcx & X86_CPUID_FEATURE_ECX_XSAVE) && ( pCurLeaf->uEax || pCurLeaf->uEbx || pCurLeaf->uEcx || pCurLeaf->uEdx) ) { fGuestXcr0Mask = RT_MAKE_U64(pCurLeaf->uEax, pCurLeaf->uEdx); if (fGuestXcr0Mask & ~pVM->cpum.s.fXStateHostMask) return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, N_("CPUID(0xd/0).EDX:EAX mismatch: %#llx saved, %#llx supported by the current host (XCR0 bits)"), fGuestXcr0Mask, pVM->cpum.s.fXStateHostMask); if ((fGuestXcr0Mask & (XSAVE_C_X87 | XSAVE_C_SSE)) != (XSAVE_C_X87 | XSAVE_C_SSE)) return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, N_("CPUID(0xd/0).EDX:EAX missing mandatory X87 or SSE bits: %#RX64"), fGuestXcr0Mask); /* We don't support any additional features yet. */ pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0x0000000d), 1); if (pCurLeaf && pCurLeaf->uEax) return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, N_("CPUID(0xd/1).EAX=%#x, expected zero"), pCurLeaf->uEax); if (pCurLeaf && (pCurLeaf->uEcx || pCurLeaf->uEdx)) return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, N_("CPUID(0xd/1).EDX:ECX=%#llx, expected zero"), RT_MAKE_U64(pCurLeaf->uEdx, pCurLeaf->uEcx)); #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) for (uint32_t uSubLeaf = 2; uSubLeaf < 64; uSubLeaf++) { pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0x0000000d), uSubLeaf); if (pCurLeaf) { /* If advertised, the state component offset and size must match the one used by host. */ if (pCurLeaf->uEax || pCurLeaf->uEbx || pCurLeaf->uEcx || pCurLeaf->uEdx) { CPUMCPUID RawHost; ASMCpuIdExSlow(UINT32_C(0x0000000d), 0, uSubLeaf, 0, &RawHost.uEax, &RawHost.uEbx, &RawHost.uEcx, &RawHost.uEdx); if ( RawHost.uEbx != pCurLeaf->uEbx || RawHost.uEax != pCurLeaf->uEax) return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, N_("CPUID(0xd/%#x).EBX/EAX=%#x/%#x, current host uses %#x/%#x (offset/size)"), uSubLeaf, pCurLeaf->uEbx, pCurLeaf->uEax, RawHost.uEbx, RawHost.uEax); } } } #endif } /* Clear leaf 0xd just in case we're loading an old state... */ else if (pCurLeaf) { for (uint32_t uSubLeaf = 0; uSubLeaf < 64; uSubLeaf++) { pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0x0000000d), uSubLeaf); if (pCurLeaf) { AssertLogRelMsg( uVersion <= CPUM_SAVED_STATE_VERSION_PUT_STRUCT || ( pCurLeaf->uEax == 0 && pCurLeaf->uEbx == 0 && pCurLeaf->uEcx == 0 && pCurLeaf->uEdx == 0), ("uVersion=%#x; %#x %#x %#x %#x\n", uVersion, pCurLeaf->uEax, pCurLeaf->uEbx, pCurLeaf->uEcx, pCurLeaf->uEdx)); pCurLeaf->uEax = pCurLeaf->uEbx = pCurLeaf->uEcx = pCurLeaf->uEdx = 0; } } } /* Update the fXStateGuestMask value for the VM. */ if (pVM->cpum.s.fXStateGuestMask != fGuestXcr0Mask) { LogRel(("CPUM: fXStateGuestMask=%#llx -> %#llx\n", pVM->cpum.s.fXStateGuestMask, fGuestXcr0Mask)); pVM->cpum.s.fXStateGuestMask = fGuestXcr0Mask; if (!fGuestXcr0Mask && (aGuestCpuIdStd[1].uEcx & X86_CPUID_FEATURE_ECX_XSAVE)) return SSMR3SetLoadError(pSSM, VERR_SSM_LOAD_CPUID_MISMATCH, RT_SRC_POS, N_("Internal Processing Error: XSAVE feature bit enabled, but leaf 0xd is empty.")); } #undef CPUID_CHECK_RET #undef CPUID_CHECK_WRN #undef CPUID_CHECK2_RET #undef CPUID_CHECK2_WRN #undef CPUID_RAW_FEATURE_RET #undef CPUID_RAW_FEATURE_WRN #undef CPUID_RAW_FEATURE_IGN #undef CPUID_GST_FEATURE_RET #undef CPUID_GST_FEATURE_WRN #undef CPUID_GST_FEATURE_EMU #undef CPUID_GST_FEATURE_IGN #undef CPUID_GST_FEATURE2_RET #undef CPUID_GST_FEATURE2_WRN #undef CPUID_GST_FEATURE2_EMU #undef CPUID_GST_FEATURE2_IGN #undef CPUID_GST_AMD_FEATURE_RET #undef CPUID_GST_AMD_FEATURE_WRN #undef CPUID_GST_AMD_FEATURE_EMU #undef CPUID_GST_AMD_FEATURE_IGN /* * We're good, commit the CPU ID leaves. */ pVM->cpum.s.GuestInfo.DefCpuId = GuestDefCpuId; rc = cpumR3CpuIdInstallAndExplodeLeaves(pVM, &pVM->cpum.s, paLeaves, cLeaves, pMsrs); AssertLogRelRCReturn(rc, rc); return VINF_SUCCESS; } /** * Loads the CPU ID leaves saved by pass 0. * * @returns VBox status code. * @param pVM The cross context VM structure. * @param pSSM The saved state handle. * @param uVersion The format version. * @param pMsrs The guest MSRs. */ int cpumR3LoadCpuId(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, PCCPUMMSRS pMsrs) { AssertMsgReturn(uVersion >= CPUM_SAVED_STATE_VERSION_VER3_2, ("%u\n", uVersion), VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION); /* * Load the CPUID leaves array first and call worker to do the rest, just so * we can free the memory when we need to without ending up in column 1000. */ PCPUMCPUIDLEAF paLeaves; uint32_t cLeaves; int rc = cpumR3LoadGuestCpuIdArray(pVM, pSSM, uVersion, &paLeaves, &cLeaves); AssertRC(rc); if (RT_SUCCESS(rc)) { rc = cpumR3LoadCpuIdInner(pVM, pSSM, uVersion, paLeaves, cLeaves, pMsrs); RTMemFree(paLeaves); } return rc; } /** * Loads the CPU ID leaves saved by pass 0 in an pre 3.2 saved state. * * @returns VBox status code. * @param pVM The cross context VM structure. * @param pSSM The saved state handle. * @param uVersion The format version. */ int cpumR3LoadCpuIdPre32(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion) { AssertMsgReturn(uVersion < CPUM_SAVED_STATE_VERSION_VER3_2, ("%u\n", uVersion), VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION); /* * Restore the CPUID leaves. * * Note that we support restoring less than the current amount of standard * leaves because we've been allowed more is newer version of VBox. */ uint32_t cElements; int rc = SSMR3GetU32(pSSM, &cElements); AssertRCReturn(rc, rc); if (cElements > RT_ELEMENTS(pVM->cpum.s.aGuestCpuIdPatmStd)) return VERR_SSM_DATA_UNIT_FORMAT_CHANGED; SSMR3GetMem(pSSM, &pVM->cpum.s.aGuestCpuIdPatmStd[0], cElements*sizeof(pVM->cpum.s.aGuestCpuIdPatmStd[0])); rc = SSMR3GetU32(pSSM, &cElements); AssertRCReturn(rc, rc); if (cElements != RT_ELEMENTS(pVM->cpum.s.aGuestCpuIdPatmExt)) return VERR_SSM_DATA_UNIT_FORMAT_CHANGED; SSMR3GetMem(pSSM, &pVM->cpum.s.aGuestCpuIdPatmExt[0], sizeof(pVM->cpum.s.aGuestCpuIdPatmExt)); rc = SSMR3GetU32(pSSM, &cElements); AssertRCReturn(rc, rc); if (cElements != RT_ELEMENTS(pVM->cpum.s.aGuestCpuIdPatmCentaur)) return VERR_SSM_DATA_UNIT_FORMAT_CHANGED; SSMR3GetMem(pSSM, &pVM->cpum.s.aGuestCpuIdPatmCentaur[0], sizeof(pVM->cpum.s.aGuestCpuIdPatmCentaur)); SSMR3GetMem(pSSM, &pVM->cpum.s.GuestInfo.DefCpuId, sizeof(pVM->cpum.s.GuestInfo.DefCpuId)); /* * Check that the basic cpuid id information is unchanged. */ /** @todo we should check the 64 bits capabilities too! */ uint32_t au32CpuId[8] = {0,0,0,0, 0,0,0,0}; #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) ASMCpuIdExSlow(0, 0, 0, 0, &au32CpuId[0], &au32CpuId[1], &au32CpuId[2], &au32CpuId[3]); ASMCpuIdExSlow(1, 0, 0, 0, &au32CpuId[4], &au32CpuId[5], &au32CpuId[6], &au32CpuId[7]); #endif uint32_t au32CpuIdSaved[8]; rc = SSMR3GetMem(pSSM, &au32CpuIdSaved[0], sizeof(au32CpuIdSaved)); if (RT_SUCCESS(rc)) { /* Ignore CPU stepping. */ au32CpuId[4] &= 0xfffffff0; au32CpuIdSaved[4] &= 0xfffffff0; /* Ignore APIC ID (AMD specs). */ au32CpuId[5] &= ~0xff000000; au32CpuIdSaved[5] &= ~0xff000000; /* Ignore the number of Logical CPUs (AMD specs). */ au32CpuId[5] &= ~0x00ff0000; au32CpuIdSaved[5] &= ~0x00ff0000; /* Ignore some advanced capability bits, that we don't expose to the guest. */ au32CpuId[6] &= ~( X86_CPUID_FEATURE_ECX_DTES64 | X86_CPUID_FEATURE_ECX_VMX | X86_CPUID_FEATURE_ECX_SMX | X86_CPUID_FEATURE_ECX_EST | X86_CPUID_FEATURE_ECX_TM2 | X86_CPUID_FEATURE_ECX_CNTXID | X86_CPUID_FEATURE_ECX_TPRUPDATE | X86_CPUID_FEATURE_ECX_PDCM | X86_CPUID_FEATURE_ECX_DCA | X86_CPUID_FEATURE_ECX_X2APIC ); au32CpuIdSaved[6] &= ~( X86_CPUID_FEATURE_ECX_DTES64 | X86_CPUID_FEATURE_ECX_VMX | X86_CPUID_FEATURE_ECX_SMX | X86_CPUID_FEATURE_ECX_EST | X86_CPUID_FEATURE_ECX_TM2 | X86_CPUID_FEATURE_ECX_CNTXID | X86_CPUID_FEATURE_ECX_TPRUPDATE | X86_CPUID_FEATURE_ECX_PDCM | X86_CPUID_FEATURE_ECX_DCA | X86_CPUID_FEATURE_ECX_X2APIC ); /* Make sure we don't forget to update the masks when enabling * features in the future. */ AssertRelease(!(pVM->cpum.s.aGuestCpuIdPatmStd[1].uEcx & ( X86_CPUID_FEATURE_ECX_DTES64 | X86_CPUID_FEATURE_ECX_VMX | X86_CPUID_FEATURE_ECX_SMX | X86_CPUID_FEATURE_ECX_EST | X86_CPUID_FEATURE_ECX_TM2 | X86_CPUID_FEATURE_ECX_CNTXID | X86_CPUID_FEATURE_ECX_TPRUPDATE | X86_CPUID_FEATURE_ECX_PDCM | X86_CPUID_FEATURE_ECX_DCA | X86_CPUID_FEATURE_ECX_X2APIC ))); /* do the compare */ if (memcmp(au32CpuIdSaved, au32CpuId, sizeof(au32CpuIdSaved))) { if (SSMR3HandleGetAfter(pSSM) == SSMAFTER_DEBUG_IT) LogRel(("cpumR3LoadExec: CpuId mismatch! (ignored due to SSMAFTER_DEBUG_IT)\n" "Saved=%.*Rhxs\n" "Real =%.*Rhxs\n", sizeof(au32CpuIdSaved), au32CpuIdSaved, sizeof(au32CpuId), au32CpuId)); else { LogRel(("cpumR3LoadExec: CpuId mismatch!\n" "Saved=%.*Rhxs\n" "Real =%.*Rhxs\n", sizeof(au32CpuIdSaved), au32CpuIdSaved, sizeof(au32CpuId), au32CpuId)); rc = VERR_SSM_LOAD_CPUID_MISMATCH; } } } return rc; } /* * * * CPUID Info Handler. * CPUID Info Handler. * CPUID Info Handler. * * */ /** * Get L1 cache / TLS associativity. */ static const char *getCacheAss(unsigned u, char *pszBuf) { if (u == 0) return "res0 "; if (u == 1) return "direct"; if (u == 255) return "fully"; if (u >= 256) return "???"; RTStrPrintf(pszBuf, 16, "%d way", u); return pszBuf; } /** * Get L2 cache associativity. */ const char *getL2CacheAss(unsigned u) { switch (u) { case 0: return "off "; case 1: return "direct"; case 2: return "2 way "; case 3: return "res3 "; case 4: return "4 way "; case 5: return "res5 "; case 6: return "8 way "; case 7: return "res7 "; case 8: return "16 way"; case 9: return "res9 "; case 10: return "res10 "; case 11: return "res11 "; case 12: return "res12 "; case 13: return "res13 "; case 14: return "res14 "; case 15: return "fully "; default: return "????"; } } /** CPUID(1).EDX field descriptions. */ static DBGFREGSUBFIELD const g_aLeaf1EdxSubFields[] = { DBGFREGSUBFIELD_RO("FPU\0" "x87 FPU on Chip", 0, 1, 0), DBGFREGSUBFIELD_RO("VME\0" "Virtual 8086 Mode Enhancements", 1, 1, 0), DBGFREGSUBFIELD_RO("DE\0" "Debugging extensions", 2, 1, 0), DBGFREGSUBFIELD_RO("PSE\0" "Page Size Extension", 3, 1, 0), DBGFREGSUBFIELD_RO("TSC\0" "Time Stamp Counter", 4, 1, 0), DBGFREGSUBFIELD_RO("MSR\0" "Model Specific Registers", 5, 1, 0), DBGFREGSUBFIELD_RO("PAE\0" "Physical Address Extension", 6, 1, 0), DBGFREGSUBFIELD_RO("MCE\0" "Machine Check Exception", 7, 1, 0), DBGFREGSUBFIELD_RO("CX8\0" "CMPXCHG8B instruction", 8, 1, 0), DBGFREGSUBFIELD_RO("APIC\0" "APIC On-Chip", 9, 1, 0), DBGFREGSUBFIELD_RO("SEP\0" "SYSENTER and SYSEXIT Present", 11, 1, 0), DBGFREGSUBFIELD_RO("MTRR\0" "Memory Type Range Registers", 12, 1, 0), DBGFREGSUBFIELD_RO("PGE\0" "PTE Global Bit", 13, 1, 0), DBGFREGSUBFIELD_RO("MCA\0" "Machine Check Architecture", 14, 1, 0), DBGFREGSUBFIELD_RO("CMOV\0" "Conditional Move instructions", 15, 1, 0), DBGFREGSUBFIELD_RO("PAT\0" "Page Attribute Table", 16, 1, 0), DBGFREGSUBFIELD_RO("PSE-36\0" "36-bit Page Size Extension", 17, 1, 0), DBGFREGSUBFIELD_RO("PSN\0" "Processor Serial Number", 18, 1, 0), DBGFREGSUBFIELD_RO("CLFSH\0" "CLFLUSH instruction", 19, 1, 0), DBGFREGSUBFIELD_RO("DS\0" "Debug Store", 21, 1, 0), DBGFREGSUBFIELD_RO("ACPI\0" "Thermal Mon. & Soft. Clock Ctrl.", 22, 1, 0), DBGFREGSUBFIELD_RO("MMX\0" "Intel MMX Technology", 23, 1, 0), DBGFREGSUBFIELD_RO("FXSR\0" "FXSAVE and FXRSTOR instructions", 24, 1, 0), DBGFREGSUBFIELD_RO("SSE\0" "SSE support", 25, 1, 0), DBGFREGSUBFIELD_RO("SSE2\0" "SSE2 support", 26, 1, 0), DBGFREGSUBFIELD_RO("SS\0" "Self Snoop", 27, 1, 0), DBGFREGSUBFIELD_RO("HTT\0" "Hyper-Threading Technology", 28, 1, 0), DBGFREGSUBFIELD_RO("TM\0" "Therm. Monitor", 29, 1, 0), DBGFREGSUBFIELD_RO("PBE\0" "Pending Break Enabled", 31, 1, 0), DBGFREGSUBFIELD_TERMINATOR() }; /** CPUID(1).ECX field descriptions. */ static DBGFREGSUBFIELD const g_aLeaf1EcxSubFields[] = { DBGFREGSUBFIELD_RO("SSE3\0" "SSE3 support", 0, 1, 0), DBGFREGSUBFIELD_RO("PCLMUL\0" "PCLMULQDQ support (for AES-GCM)", 1, 1, 0), DBGFREGSUBFIELD_RO("DTES64\0" "DS Area 64-bit Layout", 2, 1, 0), DBGFREGSUBFIELD_RO("MONITOR\0" "MONITOR/MWAIT instructions", 3, 1, 0), DBGFREGSUBFIELD_RO("CPL-DS\0" "CPL Qualified Debug Store", 4, 1, 0), DBGFREGSUBFIELD_RO("VMX\0" "Virtual Machine Extensions", 5, 1, 0), DBGFREGSUBFIELD_RO("SMX\0" "Safer Mode Extensions", 6, 1, 0), DBGFREGSUBFIELD_RO("EST\0" "Enhanced SpeedStep Technology", 7, 1, 0), DBGFREGSUBFIELD_RO("TM2\0" "Terminal Monitor 2", 8, 1, 0), DBGFREGSUBFIELD_RO("SSSE3\0" "Supplemental Streaming SIMD Extensions 3", 9, 1, 0), DBGFREGSUBFIELD_RO("CNTX-ID\0" "L1 Context ID", 10, 1, 0), DBGFREGSUBFIELD_RO("SDBG\0" "Silicon Debug interface", 11, 1, 0), DBGFREGSUBFIELD_RO("FMA\0" "Fused Multiply Add extensions", 12, 1, 0), DBGFREGSUBFIELD_RO("CX16\0" "CMPXCHG16B instruction", 13, 1, 0), DBGFREGSUBFIELD_RO("TPRUPDATE\0" "xTPR Update Control", 14, 1, 0), DBGFREGSUBFIELD_RO("PDCM\0" "Perf/Debug Capability MSR", 15, 1, 0), DBGFREGSUBFIELD_RO("PCID\0" "Process Context Identifiers", 17, 1, 0), DBGFREGSUBFIELD_RO("DCA\0" "Direct Cache Access", 18, 1, 0), DBGFREGSUBFIELD_RO("SSE4_1\0" "SSE4_1 support", 19, 1, 0), DBGFREGSUBFIELD_RO("SSE4_2\0" "SSE4_2 support", 20, 1, 0), DBGFREGSUBFIELD_RO("X2APIC\0" "x2APIC support", 21, 1, 0), DBGFREGSUBFIELD_RO("MOVBE\0" "MOVBE instruction", 22, 1, 0), DBGFREGSUBFIELD_RO("POPCNT\0" "POPCNT instruction", 23, 1, 0), DBGFREGSUBFIELD_RO("TSCDEADL\0" "Time Stamp Counter Deadline", 24, 1, 0), DBGFREGSUBFIELD_RO("AES\0" "AES instructions", 25, 1, 0), DBGFREGSUBFIELD_RO("XSAVE\0" "XSAVE instruction", 26, 1, 0), DBGFREGSUBFIELD_RO("OSXSAVE\0" "OSXSAVE instruction", 27, 1, 0), DBGFREGSUBFIELD_RO("AVX\0" "AVX support", 28, 1, 0), DBGFREGSUBFIELD_RO("F16C\0" "16-bit floating point conversion instructions", 29, 1, 0), DBGFREGSUBFIELD_RO("RDRAND\0" "RDRAND instruction", 30, 1, 0), DBGFREGSUBFIELD_RO("HVP\0" "Hypervisor Present (we're a guest)", 31, 1, 0), DBGFREGSUBFIELD_TERMINATOR() }; /** CPUID(7,0).EBX field descriptions. */ static DBGFREGSUBFIELD const g_aLeaf7Sub0EbxSubFields[] = { DBGFREGSUBFIELD_RO("FSGSBASE\0" "RDFSBASE/RDGSBASE/WRFSBASE/WRGSBASE instr.", 0, 1, 0), DBGFREGSUBFIELD_RO("TSCADJUST\0" "Supports MSR_IA32_TSC_ADJUST", 1, 1, 0), DBGFREGSUBFIELD_RO("SGX\0" "Supports Software Guard Extensions", 2, 1, 0), DBGFREGSUBFIELD_RO("BMI1\0" "Advanced Bit Manipulation extension 1", 3, 1, 0), DBGFREGSUBFIELD_RO("HLE\0" "Hardware Lock Elision", 4, 1, 0), DBGFREGSUBFIELD_RO("AVX2\0" "Advanced Vector Extensions 2", 5, 1, 0), DBGFREGSUBFIELD_RO("FDP_EXCPTN_ONLY\0" "FPU DP only updated on exceptions", 6, 1, 0), DBGFREGSUBFIELD_RO("SMEP\0" "Supervisor Mode Execution Prevention", 7, 1, 0), DBGFREGSUBFIELD_RO("BMI2\0" "Advanced Bit Manipulation extension 2", 8, 1, 0), DBGFREGSUBFIELD_RO("ERMS\0" "Enhanced REP MOVSB/STOSB instructions", 9, 1, 0), DBGFREGSUBFIELD_RO("INVPCID\0" "INVPCID instruction", 10, 1, 0), DBGFREGSUBFIELD_RO("RTM\0" "Restricted Transactional Memory", 11, 1, 0), DBGFREGSUBFIELD_RO("PQM\0" "Platform Quality of Service Monitoring", 12, 1, 0), DBGFREGSUBFIELD_RO("DEPFPU_CS_DS\0" "Deprecates FPU CS, FPU DS values if set", 13, 1, 0), DBGFREGSUBFIELD_RO("MPE\0" "Intel Memory Protection Extensions", 14, 1, 0), DBGFREGSUBFIELD_RO("PQE\0" "Platform Quality of Service Enforcement", 15, 1, 0), DBGFREGSUBFIELD_RO("AVX512F\0" "AVX512 Foundation instructions", 16, 1, 0), DBGFREGSUBFIELD_RO("RDSEED\0" "RDSEED instruction", 18, 1, 0), DBGFREGSUBFIELD_RO("ADX\0" "ADCX/ADOX instructions", 19, 1, 0), DBGFREGSUBFIELD_RO("SMAP\0" "Supervisor Mode Access Prevention", 20, 1, 0), DBGFREGSUBFIELD_RO("CLFLUSHOPT\0" "CLFLUSHOPT (Cache Line Flush) instruction", 23, 1, 0), DBGFREGSUBFIELD_RO("INTEL_PT\0" "Intel Processor Trace", 25, 1, 0), DBGFREGSUBFIELD_RO("AVX512PF\0" "AVX512 Prefetch instructions", 26, 1, 0), DBGFREGSUBFIELD_RO("AVX512ER\0" "AVX512 Exponential & Reciprocal instructions", 27, 1, 0), DBGFREGSUBFIELD_RO("AVX512CD\0" "AVX512 Conflict Detection instructions", 28, 1, 0), DBGFREGSUBFIELD_RO("SHA\0" "Secure Hash Algorithm extensions", 29, 1, 0), DBGFREGSUBFIELD_TERMINATOR() }; /** CPUID(7,0).ECX field descriptions. */ static DBGFREGSUBFIELD const g_aLeaf7Sub0EcxSubFields[] = { DBGFREGSUBFIELD_RO("PREFETCHWT1\0" "PREFETCHWT1 instruction", 0, 1, 0), DBGFREGSUBFIELD_RO("UMIP\0" "User mode insturction prevention", 2, 1, 0), DBGFREGSUBFIELD_RO("PKU\0" "Protection Key for Usermode pages", 3, 1, 0), DBGFREGSUBFIELD_RO("OSPKE\0" "CR4.PKU mirror", 4, 1, 0), DBGFREGSUBFIELD_RO("MAWAU\0" "Value used by BNDLDX & BNDSTX", 17, 5, 0), DBGFREGSUBFIELD_RO("RDPID\0" "Read processor ID support", 22, 1, 0), DBGFREGSUBFIELD_RO("SGX_LC\0" "Supports SGX Launch Configuration", 30, 1, 0), DBGFREGSUBFIELD_TERMINATOR() }; /** CPUID(7,0).EDX field descriptions. */ static DBGFREGSUBFIELD const g_aLeaf7Sub0EdxSubFields[] = { DBGFREGSUBFIELD_RO("MD_CLEAR\0" "Supports MDS related buffer clearing", 10, 1, 0), DBGFREGSUBFIELD_RO("IBRS_IBPB\0" "IA32_SPEC_CTRL.IBRS and IA32_PRED_CMD.IBPB", 26, 1, 0), DBGFREGSUBFIELD_RO("STIBP\0" "Supports IA32_SPEC_CTRL.STIBP", 27, 1, 0), DBGFREGSUBFIELD_RO("FLUSH_CMD\0" "Supports IA32_FLUSH_CMD", 28, 1, 0), DBGFREGSUBFIELD_RO("ARCHCAP\0" "Supports IA32_ARCH_CAP", 29, 1, 0), DBGFREGSUBFIELD_RO("CORECAP\0" "Supports IA32_CORE_CAP", 30, 1, 0), DBGFREGSUBFIELD_RO("SSBD\0" "Supports IA32_SPEC_CTRL.SSBD", 31, 1, 0), DBGFREGSUBFIELD_TERMINATOR() }; /** CPUID(13,0).EAX+EDX, XCR0, ++ bit descriptions. */ static DBGFREGSUBFIELD const g_aXSaveStateBits[] = { DBGFREGSUBFIELD_RO("x87\0" "Legacy FPU state", 0, 1, 0), DBGFREGSUBFIELD_RO("SSE\0" "128-bit SSE state", 1, 1, 0), DBGFREGSUBFIELD_RO("YMM_Hi128\0" "Upper 128 bits of YMM0-15 (AVX)", 2, 1, 0), DBGFREGSUBFIELD_RO("BNDREGS\0" "MPX bound register state", 3, 1, 0), DBGFREGSUBFIELD_RO("BNDCSR\0" "MPX bound config and status state", 4, 1, 0), DBGFREGSUBFIELD_RO("Opmask\0" "opmask state", 5, 1, 0), DBGFREGSUBFIELD_RO("ZMM_Hi256\0" "Upper 256 bits of ZMM0-15 (AVX-512)", 6, 1, 0), DBGFREGSUBFIELD_RO("Hi16_ZMM\0" "512-bits ZMM16-31 state (AVX-512)", 7, 1, 0), DBGFREGSUBFIELD_RO("LWP\0" "Lightweight Profiling (AMD)", 62, 1, 0), DBGFREGSUBFIELD_TERMINATOR() }; /** CPUID(13,1).EAX field descriptions. */ static DBGFREGSUBFIELD const g_aLeaf13Sub1EaxSubFields[] = { DBGFREGSUBFIELD_RO("XSAVEOPT\0" "XSAVEOPT is available", 0, 1, 0), DBGFREGSUBFIELD_RO("XSAVEC\0" "XSAVEC and compacted XRSTOR supported", 1, 1, 0), DBGFREGSUBFIELD_RO("XGETBC1\0" "XGETBV with ECX=1 supported", 2, 1, 0), DBGFREGSUBFIELD_RO("XSAVES\0" "XSAVES/XRSTORS and IA32_XSS supported", 3, 1, 0), DBGFREGSUBFIELD_TERMINATOR() }; /** CPUID(0x80000001,0).EDX field descriptions. */ static DBGFREGSUBFIELD const g_aExtLeaf1EdxSubFields[] = { DBGFREGSUBFIELD_RO("FPU\0" "x87 FPU on Chip", 0, 1, 0), DBGFREGSUBFIELD_RO("VME\0" "Virtual 8086 Mode Enhancements", 1, 1, 0), DBGFREGSUBFIELD_RO("DE\0" "Debugging extensions", 2, 1, 0), DBGFREGSUBFIELD_RO("PSE\0" "Page Size Extension", 3, 1, 0), DBGFREGSUBFIELD_RO("TSC\0" "Time Stamp Counter", 4, 1, 0), DBGFREGSUBFIELD_RO("MSR\0" "K86 Model Specific Registers", 5, 1, 0), DBGFREGSUBFIELD_RO("PAE\0" "Physical Address Extension", 6, 1, 0), DBGFREGSUBFIELD_RO("MCE\0" "Machine Check Exception", 7, 1, 0), DBGFREGSUBFIELD_RO("CX8\0" "CMPXCHG8B instruction", 8, 1, 0), DBGFREGSUBFIELD_RO("APIC\0" "APIC On-Chip", 9, 1, 0), DBGFREGSUBFIELD_RO("SEP\0" "SYSCALL/SYSRET", 11, 1, 0), DBGFREGSUBFIELD_RO("MTRR\0" "Memory Type Range Registers", 12, 1, 0), DBGFREGSUBFIELD_RO("PGE\0" "PTE Global Bit", 13, 1, 0), DBGFREGSUBFIELD_RO("MCA\0" "Machine Check Architecture", 14, 1, 0), DBGFREGSUBFIELD_RO("CMOV\0" "Conditional Move instructions", 15, 1, 0), DBGFREGSUBFIELD_RO("PAT\0" "Page Attribute Table", 16, 1, 0), DBGFREGSUBFIELD_RO("PSE-36\0" "36-bit Page Size Extension", 17, 1, 0), DBGFREGSUBFIELD_RO("NX\0" "No-Execute/Execute-Disable", 20, 1, 0), DBGFREGSUBFIELD_RO("AXMMX\0" "AMD Extensions to MMX instructions", 22, 1, 0), DBGFREGSUBFIELD_RO("MMX\0" "Intel MMX Technology", 23, 1, 0), DBGFREGSUBFIELD_RO("FXSR\0" "FXSAVE and FXRSTOR Instructions", 24, 1, 0), DBGFREGSUBFIELD_RO("FFXSR\0" "AMD fast FXSAVE and FXRSTOR instructions", 25, 1, 0), DBGFREGSUBFIELD_RO("Page1GB\0" "1 GB large page", 26, 1, 0), DBGFREGSUBFIELD_RO("RDTSCP\0" "RDTSCP instruction", 27, 1, 0), DBGFREGSUBFIELD_RO("LM\0" "AMD64 Long Mode", 29, 1, 0), DBGFREGSUBFIELD_RO("3DNOWEXT\0" "AMD Extensions to 3DNow", 30, 1, 0), DBGFREGSUBFIELD_RO("3DNOW\0" "AMD 3DNow", 31, 1, 0), DBGFREGSUBFIELD_TERMINATOR() }; /** CPUID(0x80000001,0).ECX field descriptions. */ static DBGFREGSUBFIELD const g_aExtLeaf1EcxSubFields[] = { DBGFREGSUBFIELD_RO("LahfSahf\0" "LAHF/SAHF support in 64-bit mode", 0, 1, 0), DBGFREGSUBFIELD_RO("CmpLegacy\0" "Core multi-processing legacy mode", 1, 1, 0), DBGFREGSUBFIELD_RO("SVM\0" "AMD Secure Virtual Machine extensions", 2, 1, 0), DBGFREGSUBFIELD_RO("EXTAPIC\0" "AMD Extended APIC registers", 3, 1, 0), DBGFREGSUBFIELD_RO("CR8L\0" "AMD LOCK MOV CR0 means MOV CR8", 4, 1, 0), DBGFREGSUBFIELD_RO("ABM\0" "AMD Advanced Bit Manipulation", 5, 1, 0), DBGFREGSUBFIELD_RO("SSE4A\0" "SSE4A instructions", 6, 1, 0), DBGFREGSUBFIELD_RO("MISALIGNSSE\0" "AMD Misaligned SSE mode", 7, 1, 0), DBGFREGSUBFIELD_RO("3DNOWPRF\0" "AMD PREFETCH and PREFETCHW instructions", 8, 1, 0), DBGFREGSUBFIELD_RO("OSVW\0" "AMD OS Visible Workaround", 9, 1, 0), DBGFREGSUBFIELD_RO("IBS\0" "Instruct Based Sampling", 10, 1, 0), DBGFREGSUBFIELD_RO("XOP\0" "Extended Operation support", 11, 1, 0), DBGFREGSUBFIELD_RO("SKINIT\0" "SKINIT, STGI, and DEV support", 12, 1, 0), DBGFREGSUBFIELD_RO("WDT\0" "AMD Watchdog Timer support", 13, 1, 0), DBGFREGSUBFIELD_RO("LWP\0" "Lightweight Profiling support", 15, 1, 0), DBGFREGSUBFIELD_RO("FMA4\0" "Four operand FMA instruction support", 16, 1, 0), DBGFREGSUBFIELD_RO("NodeId\0" "NodeId in MSR C001_100C", 19, 1, 0), DBGFREGSUBFIELD_RO("TBM\0" "Trailing Bit Manipulation instructions", 21, 1, 0), DBGFREGSUBFIELD_RO("TOPOEXT\0" "Topology Extensions", 22, 1, 0), DBGFREGSUBFIELD_RO("PRFEXTCORE\0" "Performance Counter Extensions support", 23, 1, 0), DBGFREGSUBFIELD_RO("PRFEXTNB\0" "NB Performance Counter Extensions support", 24, 1, 0), DBGFREGSUBFIELD_RO("DATABPEXT\0" "Data-access Breakpoint Extension", 26, 1, 0), DBGFREGSUBFIELD_RO("PERFTSC\0" "Performance Time Stamp Counter", 27, 1, 0), DBGFREGSUBFIELD_RO("PCX_L2I\0" "L2I/L3 Performance Counter Extensions", 28, 1, 0), DBGFREGSUBFIELD_RO("MWAITX\0" "MWAITX and MONITORX instructions", 29, 1, 0), DBGFREGSUBFIELD_TERMINATOR() }; /** CPUID(0x8000000a,0).EDX field descriptions. */ static DBGFREGSUBFIELD const g_aExtLeafAEdxSubFields[] = { DBGFREGSUBFIELD_RO("NP\0" "Nested Paging", 0, 1, 0), DBGFREGSUBFIELD_RO("LbrVirt\0" "Last Branch Record Virtualization", 1, 1, 0), DBGFREGSUBFIELD_RO("SVML\0" "SVM Lock", 2, 1, 0), DBGFREGSUBFIELD_RO("NRIPS\0" "NextRIP Save", 3, 1, 0), DBGFREGSUBFIELD_RO("TscRateMsr\0" "MSR based TSC rate control", 4, 1, 0), DBGFREGSUBFIELD_RO("VmcbClean\0" "VMCB clean bits", 5, 1, 0), DBGFREGSUBFIELD_RO("FlushByASID\0" "Flush by ASID", 6, 1, 0), DBGFREGSUBFIELD_RO("DecodeAssists\0" "Decode Assists", 7, 1, 0), DBGFREGSUBFIELD_RO("PauseFilter\0" "Pause intercept filter", 10, 1, 0), DBGFREGSUBFIELD_RO("PauseFilterThreshold\0" "Pause filter threshold", 12, 1, 0), DBGFREGSUBFIELD_RO("AVIC\0" "Advanced Virtual Interrupt Controller", 13, 1, 0), DBGFREGSUBFIELD_RO("VMSAVEVirt\0" "VMSAVE and VMLOAD Virtualization", 15, 1, 0), DBGFREGSUBFIELD_RO("VGIF\0" "Virtual Global-Interrupt Flag", 16, 1, 0), DBGFREGSUBFIELD_RO("GMET\0" "Guest Mode Execute Trap Extension", 17, 1, 0), DBGFREGSUBFIELD_TERMINATOR() }; /** CPUID(0x80000007,0).EDX field descriptions. */ static DBGFREGSUBFIELD const g_aExtLeaf7EdxSubFields[] = { DBGFREGSUBFIELD_RO("TS\0" "Temperature Sensor", 0, 1, 0), DBGFREGSUBFIELD_RO("FID\0" "Frequency ID control", 1, 1, 0), DBGFREGSUBFIELD_RO("VID\0" "Voltage ID control", 2, 1, 0), DBGFREGSUBFIELD_RO("VID\0" "Voltage ID control", 2, 1, 0), DBGFREGSUBFIELD_RO("TTP\0" "Thermal Trip", 3, 1, 0), DBGFREGSUBFIELD_RO("TM\0" "Hardware Thermal Control (HTC)", 4, 1, 0), DBGFREGSUBFIELD_RO("100MHzSteps\0" "100 MHz Multiplier control", 6, 1, 0), DBGFREGSUBFIELD_RO("HwPstate\0" "Hardware P-state control", 7, 1, 0), DBGFREGSUBFIELD_RO("TscInvariant\0" "Invariant Time Stamp Counter", 8, 1, 0), DBGFREGSUBFIELD_RO("CBP\0" "Core Performance Boost", 9, 1, 0), DBGFREGSUBFIELD_RO("EffFreqRO\0" "Read-only Effective Frequency Interface", 10, 1, 0), DBGFREGSUBFIELD_RO("ProcFdbkIf\0" "Processor Feedback Interface", 11, 1, 0), DBGFREGSUBFIELD_RO("ProcPwrRep\0" "Core power reporting interface support", 12, 1, 0), DBGFREGSUBFIELD_TERMINATOR() }; /** CPUID(0x80000008,0).EBX field descriptions. */ static DBGFREGSUBFIELD const g_aExtLeaf8EbxSubFields[] = { DBGFREGSUBFIELD_RO("CLZERO\0" "Clear zero instruction (cacheline)", 0, 1, 0), DBGFREGSUBFIELD_RO("IRPerf\0" "Instructions retired count support", 1, 1, 0), DBGFREGSUBFIELD_RO("XSaveErPtr\0" "Save/restore error pointers (FXSAVE/RSTOR*)", 2, 1, 0), DBGFREGSUBFIELD_RO("RDPRU\0" "RDPRU instruction", 4, 1, 0), DBGFREGSUBFIELD_RO("MCOMMIT\0" "MCOMMIT instruction", 8, 1, 0), DBGFREGSUBFIELD_RO("IBPB\0" "Supports the IBPB command in IA32_PRED_CMD", 12, 1, 0), DBGFREGSUBFIELD_TERMINATOR() }; static void cpumR3CpuIdInfoMnemonicListU32(PCDBGFINFOHLP pHlp, uint32_t uVal, PCDBGFREGSUBFIELD pDesc, const char *pszLeadIn, uint32_t cchWidth) { if (pszLeadIn) pHlp->pfnPrintf(pHlp, "%*s", cchWidth, pszLeadIn); for (uint32_t iBit = 0; iBit < 32; iBit++) if (RT_BIT_32(iBit) & uVal) { while ( pDesc->pszName != NULL && iBit >= (uint32_t)pDesc->iFirstBit + pDesc->cBits) pDesc++; if ( pDesc->pszName != NULL && iBit - (uint32_t)pDesc->iFirstBit < (uint32_t)pDesc->cBits) { if (pDesc->cBits == 1) pHlp->pfnPrintf(pHlp, " %s", pDesc->pszName); else { uint32_t uFieldValue = uVal >> pDesc->iFirstBit; if (pDesc->cBits < 32) uFieldValue &= RT_BIT_32(pDesc->cBits) - UINT32_C(1); pHlp->pfnPrintf(pHlp, pDesc->cBits < 4 ? " %s=%u" : " %s=%#x", pDesc->pszName, uFieldValue); iBit = pDesc->iFirstBit + pDesc->cBits - 1; } } else pHlp->pfnPrintf(pHlp, " %u", iBit); } if (pszLeadIn) pHlp->pfnPrintf(pHlp, "\n"); } static void cpumR3CpuIdInfoMnemonicListU64(PCDBGFINFOHLP pHlp, uint64_t uVal, PCDBGFREGSUBFIELD pDesc, const char *pszLeadIn, uint32_t cchWidth) { if (pszLeadIn) pHlp->pfnPrintf(pHlp, "%*s", cchWidth, pszLeadIn); for (uint32_t iBit = 0; iBit < 64; iBit++) if (RT_BIT_64(iBit) & uVal) { while ( pDesc->pszName != NULL && iBit >= (uint32_t)pDesc->iFirstBit + pDesc->cBits) pDesc++; if ( pDesc->pszName != NULL && iBit - (uint32_t)pDesc->iFirstBit < (uint32_t)pDesc->cBits) { if (pDesc->cBits == 1) pHlp->pfnPrintf(pHlp, " %s", pDesc->pszName); else { uint64_t uFieldValue = uVal >> pDesc->iFirstBit; if (pDesc->cBits < 64) uFieldValue &= RT_BIT_64(pDesc->cBits) - UINT64_C(1); pHlp->pfnPrintf(pHlp, pDesc->cBits < 4 ? " %s=%llu" : " %s=%#llx", pDesc->pszName, uFieldValue); iBit = pDesc->iFirstBit + pDesc->cBits - 1; } } else pHlp->pfnPrintf(pHlp, " %u", iBit); } if (pszLeadIn) pHlp->pfnPrintf(pHlp, "\n"); } static void cpumR3CpuIdInfoValueWithMnemonicListU64(PCDBGFINFOHLP pHlp, uint64_t uVal, PCDBGFREGSUBFIELD pDesc, const char *pszLeadIn, uint32_t cchWidth) { if (!uVal) pHlp->pfnPrintf(pHlp, "%*s %#010x`%08x\n", cchWidth, pszLeadIn, RT_HI_U32(uVal), RT_LO_U32(uVal)); else { pHlp->pfnPrintf(pHlp, "%*s %#010x`%08x (", cchWidth, pszLeadIn, RT_HI_U32(uVal), RT_LO_U32(uVal)); cpumR3CpuIdInfoMnemonicListU64(pHlp, uVal, pDesc, NULL, 0); pHlp->pfnPrintf(pHlp, " )\n"); } } static void cpumR3CpuIdInfoVerboseCompareListU32(PCDBGFINFOHLP pHlp, uint32_t uVal1, uint32_t uVal2, PCDBGFREGSUBFIELD pDesc, uint32_t cchWidth) { uint32_t uCombined = uVal1 | uVal2; for (uint32_t iBit = 0; iBit < 32; iBit++) if ( (RT_BIT_32(iBit) & uCombined) || (iBit == pDesc->iFirstBit && pDesc->pszName) ) { while ( pDesc->pszName != NULL && iBit >= (uint32_t)pDesc->iFirstBit + pDesc->cBits) pDesc++; if ( pDesc->pszName != NULL && iBit - (uint32_t)pDesc->iFirstBit < (uint32_t)pDesc->cBits) { size_t cchMnemonic = strlen(pDesc->pszName); const char *pszDesc = pDesc->pszName + cchMnemonic + 1; size_t cchDesc = strlen(pszDesc); uint32_t uFieldValue1 = uVal1 >> pDesc->iFirstBit; uint32_t uFieldValue2 = uVal2 >> pDesc->iFirstBit; if (pDesc->cBits < 32) { uFieldValue1 &= RT_BIT_32(pDesc->cBits) - UINT32_C(1); uFieldValue2 &= RT_BIT_32(pDesc->cBits) - UINT32_C(1); } pHlp->pfnPrintf(pHlp, pDesc->cBits < 4 ? " %s - %s%*s= %u (%u)\n" : " %s - %s%*s= %#x (%#x)\n", pDesc->pszName, pszDesc, cchMnemonic + 3 + cchDesc < cchWidth ? cchWidth - (cchMnemonic + 3 + cchDesc) : 1, "", uFieldValue1, uFieldValue2); iBit = pDesc->iFirstBit + pDesc->cBits - 1U; pDesc++; } else pHlp->pfnPrintf(pHlp, " %2u - Reserved%*s= %u (%u)\n", iBit, 13 < cchWidth ? cchWidth - 13 : 1, "", RT_BOOL(uVal1 & RT_BIT_32(iBit)), RT_BOOL(uVal2 & RT_BIT_32(iBit))); } } /** * Produces a detailed summary of standard leaf 0x00000001. * * @param pHlp The info helper functions. * @param pCurLeaf The 0x00000001 leaf. * @param fVerbose Whether to be very verbose or not. * @param fIntel Set if intel CPU. */ static void cpumR3CpuIdInfoStdLeaf1Details(PCDBGFINFOHLP pHlp, PCCPUMCPUIDLEAF pCurLeaf, bool fVerbose, bool fIntel) { Assert(pCurLeaf); Assert(pCurLeaf->uLeaf == 1); static const char * const s_apszTypes[4] = { "primary", "overdrive", "MP", "reserved" }; uint32_t uEAX = pCurLeaf->uEax; uint32_t uEBX = pCurLeaf->uEbx; pHlp->pfnPrintf(pHlp, "%36s %2d \tExtended: %d \tEffective: %d\n" "%36s %2d \tExtended: %d \tEffective: %d\n" "%36s %d\n" "%36s %d (%s)\n" "%36s %#04x\n" "%36s %d\n" "%36s %d\n" "%36s %#04x\n" , "Family:", (uEAX >> 8) & 0xf, (uEAX >> 20) & 0x7f, RTX86GetCpuFamily(uEAX), "Model:", (uEAX >> 4) & 0xf, (uEAX >> 16) & 0x0f, RTX86GetCpuModel(uEAX, fIntel), "Stepping:", RTX86GetCpuStepping(uEAX), "Type:", (uEAX >> 12) & 3, s_apszTypes[(uEAX >> 12) & 3], "APIC ID:", (uEBX >> 24) & 0xff, "Logical CPUs:",(uEBX >> 16) & 0xff, "CLFLUSH Size:",(uEBX >> 8) & 0xff, "Brand ID:", (uEBX >> 0) & 0xff); if (fVerbose) { CPUMCPUID Host = {0}; #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) ASMCpuIdExSlow(1, 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx); #endif pHlp->pfnPrintf(pHlp, "Features\n"); pHlp->pfnPrintf(pHlp, " Mnemonic - Description = guest (host)\n"); cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEdx, Host.uEdx, g_aLeaf1EdxSubFields, 56); cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEcx, Host.uEcx, g_aLeaf1EcxSubFields, 56); } else { cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEdx, g_aLeaf1EdxSubFields, "Features EDX:", 36); cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEcx, g_aLeaf1EcxSubFields, "Features ECX:", 36); } } /** * Produces a detailed summary of standard leaf 0x00000007. * * @param pHlp The info helper functions. * @param paLeaves The CPUID leaves array. * @param cLeaves The number of leaves in the array. * @param pCurLeaf The first 0x00000007 leaf. * @param fVerbose Whether to be very verbose or not. */ static void cpumR3CpuIdInfoStdLeaf7Details(PCDBGFINFOHLP pHlp, PCCPUMCPUIDLEAF paLeaves, uint32_t cLeaves, PCCPUMCPUIDLEAF pCurLeaf, bool fVerbose) { Assert(pCurLeaf); Assert(pCurLeaf->uLeaf == 7); pHlp->pfnPrintf(pHlp, "Structured Extended Feature Flags Enumeration (leaf 7):\n"); for (;;) { CPUMCPUID Host = {0}; #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) ASMCpuIdExSlow(pCurLeaf->uLeaf, 0, pCurLeaf->uSubLeaf, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx); #endif switch (pCurLeaf->uSubLeaf) { case 0: if (fVerbose) { pHlp->pfnPrintf(pHlp, " Mnemonic - Description = guest (host)\n"); cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEbx, Host.uEbx, g_aLeaf7Sub0EbxSubFields, 56); cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEcx, Host.uEcx, g_aLeaf7Sub0EcxSubFields, 56); if (pCurLeaf->uEdx || Host.uEdx) cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEdx, Host.uEdx, g_aLeaf7Sub0EdxSubFields, 56); } else { cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEbx, g_aLeaf7Sub0EbxSubFields, "Ext Features EBX:", 36); cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEcx, g_aLeaf7Sub0EcxSubFields, "Ext Features ECX:", 36); if (pCurLeaf->uEdx) cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEdx, g_aLeaf7Sub0EdxSubFields, "Ext Features EDX:", 36); } break; default: if (pCurLeaf->uEdx || pCurLeaf->uEcx || pCurLeaf->uEbx) pHlp->pfnPrintf(pHlp, "Unknown extended feature sub-leaf #%u: EAX=%#x EBX=%#x ECX=%#x EDX=%#x\n", pCurLeaf->uSubLeaf, pCurLeaf->uEax, pCurLeaf->uEbx, pCurLeaf->uEcx, pCurLeaf->uEdx); break; } /* advance. */ pCurLeaf++; if ( (uintptr_t)(pCurLeaf - paLeaves) >= cLeaves || pCurLeaf->uLeaf != 0x7) break; } } /** * Produces a detailed summary of standard leaf 0x0000000d. * * @param pHlp The info helper functions. * @param paLeaves The CPUID leaves array. * @param cLeaves The number of leaves in the array. * @param pCurLeaf The first 0x00000007 leaf. * @param fVerbose Whether to be very verbose or not. */ static void cpumR3CpuIdInfoStdLeaf13Details(PCDBGFINFOHLP pHlp, PCCPUMCPUIDLEAF paLeaves, uint32_t cLeaves, PCCPUMCPUIDLEAF pCurLeaf, bool fVerbose) { RT_NOREF_PV(fVerbose); Assert(pCurLeaf); Assert(pCurLeaf->uLeaf == 13); pHlp->pfnPrintf(pHlp, "Processor Extended State Enumeration (leaf 0xd):\n"); for (uint32_t uSubLeaf = 0; uSubLeaf < 64; uSubLeaf++) { CPUMCPUID Host = {0}; #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) ASMCpuIdExSlow(UINT32_C(0x0000000d), 0, uSubLeaf, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx); #endif switch (uSubLeaf) { case 0: if (pCurLeaf && pCurLeaf->uSubLeaf == uSubLeaf) pHlp->pfnPrintf(pHlp, "%42s %#x/%#x\n", "XSAVE area cur/max size by XCR0, guest:", pCurLeaf->uEbx, pCurLeaf->uEcx); pHlp->pfnPrintf(pHlp, "%42s %#x/%#x\n", "XSAVE area cur/max size by XCR0, host:", Host.uEbx, Host.uEcx); if (pCurLeaf && pCurLeaf->uSubLeaf == uSubLeaf) cpumR3CpuIdInfoValueWithMnemonicListU64(pHlp, RT_MAKE_U64(pCurLeaf->uEax, pCurLeaf->uEdx), g_aXSaveStateBits, "Valid XCR0 bits, guest:", 42); cpumR3CpuIdInfoValueWithMnemonicListU64(pHlp, RT_MAKE_U64(Host.uEax, Host.uEdx), g_aXSaveStateBits, "Valid XCR0 bits, host:", 42); break; case 1: if (pCurLeaf && pCurLeaf->uSubLeaf == uSubLeaf) cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEax, g_aLeaf13Sub1EaxSubFields, "XSAVE features, guest:", 42); cpumR3CpuIdInfoMnemonicListU32(pHlp, Host.uEax, g_aLeaf13Sub1EaxSubFields, "XSAVE features, host:", 42); if (pCurLeaf && pCurLeaf->uSubLeaf == uSubLeaf) pHlp->pfnPrintf(pHlp, "%42s %#x\n", "XSAVE area cur size XCR0|XSS, guest:", pCurLeaf->uEbx); pHlp->pfnPrintf(pHlp, "%42s %#x\n", "XSAVE area cur size XCR0|XSS, host:", Host.uEbx); if (pCurLeaf && pCurLeaf->uSubLeaf == uSubLeaf) cpumR3CpuIdInfoValueWithMnemonicListU64(pHlp, RT_MAKE_U64(pCurLeaf->uEcx, pCurLeaf->uEdx), g_aXSaveStateBits, " Valid IA32_XSS bits, guest:", 42); cpumR3CpuIdInfoValueWithMnemonicListU64(pHlp, RT_MAKE_U64(Host.uEdx, Host.uEcx), g_aXSaveStateBits, " Valid IA32_XSS bits, host:", 42); break; default: if ( pCurLeaf && pCurLeaf->uSubLeaf == uSubLeaf && (pCurLeaf->uEax || pCurLeaf->uEbx || pCurLeaf->uEcx || pCurLeaf->uEdx) ) { pHlp->pfnPrintf(pHlp, " State #%u, guest: off=%#06x, cb=%#06x %s", uSubLeaf, pCurLeaf->uEbx, pCurLeaf->uEax, pCurLeaf->uEcx & RT_BIT_32(0) ? "XCR0-bit" : "IA32_XSS-bit"); if (pCurLeaf->uEcx & ~RT_BIT_32(0)) pHlp->pfnPrintf(pHlp, " ECX[reserved]=%#x\n", pCurLeaf->uEcx & ~RT_BIT_32(0)); if (pCurLeaf->uEdx) pHlp->pfnPrintf(pHlp, " EDX[reserved]=%#x\n", pCurLeaf->uEdx); pHlp->pfnPrintf(pHlp, " --"); cpumR3CpuIdInfoMnemonicListU64(pHlp, RT_BIT_64(uSubLeaf), g_aXSaveStateBits, NULL, 0); pHlp->pfnPrintf(pHlp, "\n"); } if (Host.uEax || Host.uEbx || Host.uEcx || Host.uEdx) { pHlp->pfnPrintf(pHlp, " State #%u, host: off=%#06x, cb=%#06x %s", uSubLeaf, Host.uEbx, Host.uEax, Host.uEcx & RT_BIT_32(0) ? "XCR0-bit" : "IA32_XSS-bit"); if (Host.uEcx & ~RT_BIT_32(0)) pHlp->pfnPrintf(pHlp, " ECX[reserved]=%#x\n", Host.uEcx & ~RT_BIT_32(0)); if (Host.uEdx) pHlp->pfnPrintf(pHlp, " EDX[reserved]=%#x\n", Host.uEdx); pHlp->pfnPrintf(pHlp, " --"); cpumR3CpuIdInfoMnemonicListU64(pHlp, RT_BIT_64(uSubLeaf), g_aXSaveStateBits, NULL, 0); pHlp->pfnPrintf(pHlp, "\n"); } break; } /* advance. */ if (pCurLeaf) { while ( (uintptr_t)(pCurLeaf - paLeaves) < cLeaves && pCurLeaf->uSubLeaf <= uSubLeaf && pCurLeaf->uLeaf == UINT32_C(0x0000000d)) pCurLeaf++; if ( (uintptr_t)(pCurLeaf - paLeaves) >= cLeaves || pCurLeaf->uLeaf != UINT32_C(0x0000000d)) pCurLeaf = NULL; } } } static PCCPUMCPUIDLEAF cpumR3CpuIdInfoRawRange(PCDBGFINFOHLP pHlp, PCCPUMCPUIDLEAF paLeaves, uint32_t cLeaves, PCCPUMCPUIDLEAF pCurLeaf, uint32_t uUpToLeaf, const char *pszTitle) { if ( (uintptr_t)(pCurLeaf - paLeaves) < cLeaves && pCurLeaf->uLeaf <= uUpToLeaf) { pHlp->pfnPrintf(pHlp, " %s\n" " Leaf/sub-leaf eax ebx ecx edx\n", pszTitle); while ( (uintptr_t)(pCurLeaf - paLeaves) < cLeaves && pCurLeaf->uLeaf <= uUpToLeaf) { CPUMCPUID Host = {0}; #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) ASMCpuIdExSlow(pCurLeaf->uLeaf, 0, pCurLeaf->uSubLeaf, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx); #endif pHlp->pfnPrintf(pHlp, "Gst: %08x/%04x %08x %08x %08x %08x\n" "Hst: %08x %08x %08x %08x\n", pCurLeaf->uLeaf, pCurLeaf->uSubLeaf, pCurLeaf->uEax, pCurLeaf->uEbx, pCurLeaf->uEcx, pCurLeaf->uEdx, Host.uEax, Host.uEbx, Host.uEcx, Host.uEdx); pCurLeaf++; } } return pCurLeaf; } /** * Display the guest CpuId leaves. * * @param pVM The cross context VM structure. * @param pHlp The info helper functions. * @param pszArgs "terse", "default" or "verbose". */ DECLCALLBACK(void) cpumR3CpuIdInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs) { /* * Parse the argument. */ unsigned iVerbosity = 1; if (pszArgs) { pszArgs = RTStrStripL(pszArgs); if (!strcmp(pszArgs, "terse")) iVerbosity--; else if (!strcmp(pszArgs, "verbose")) iVerbosity++; } uint32_t uLeaf; CPUMCPUID Host = {0}; uint32_t cLeaves = pVM->cpum.s.GuestInfo.cCpuIdLeaves; PCPUMCPUIDLEAF paLeaves = pVM->cpum.s.GuestInfo.paCpuIdLeavesR3; PCCPUMCPUIDLEAF pCurLeaf; PCCPUMCPUIDLEAF pNextLeaf; bool const fIntel = RTX86IsIntelCpu(pVM->cpum.s.aGuestCpuIdPatmStd[0].uEbx, pVM->cpum.s.aGuestCpuIdPatmStd[0].uEcx, pVM->cpum.s.aGuestCpuIdPatmStd[0].uEdx); /* * Standard leaves. Custom raw dump here due to ECX sub-leaves host handling. */ #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) uint32_t cHstMax = ASMCpuId_EAX(0); #else uint32_t cHstMax = 0; #endif uint32_t cGstMax = paLeaves[0].uLeaf == 0 ? paLeaves[0].uEax : 0; uint32_t cMax = RT_MAX(cGstMax, cHstMax); pHlp->pfnPrintf(pHlp, " Raw Standard CPUID Leaves\n" " Leaf/sub-leaf eax ebx ecx edx\n"); for (uLeaf = 0, pCurLeaf = paLeaves; uLeaf <= cMax; uLeaf++) { uint32_t cMaxSubLeaves = 1; if (uLeaf == 4 || uLeaf == 7 || uLeaf == 0xb) cMaxSubLeaves = 16; else if (uLeaf == 0xd) cMaxSubLeaves = 128; for (uint32_t uSubLeaf = 0; uSubLeaf < cMaxSubLeaves; uSubLeaf++) { #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) ASMCpuIdExSlow(uLeaf, 0, uSubLeaf, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx); #endif if ( (uintptr_t)(pCurLeaf - paLeaves) < cLeaves && pCurLeaf->uLeaf == uLeaf && pCurLeaf->uSubLeaf == uSubLeaf) { pHlp->pfnPrintf(pHlp, "Gst: %08x/%04x %08x %08x %08x %08x\n" "Hst: %08x %08x %08x %08x\n", uLeaf, uSubLeaf, pCurLeaf->uEax, pCurLeaf->uEbx, pCurLeaf->uEcx, pCurLeaf->uEdx, Host.uEax, Host.uEbx, Host.uEcx, Host.uEdx); pCurLeaf++; } else if ( uLeaf != 0xd || uSubLeaf <= 1 || Host.uEbx != 0 ) pHlp->pfnPrintf(pHlp, "Hst: %08x/%04x %08x %08x %08x %08x\n", uLeaf, uSubLeaf, Host.uEax, Host.uEbx, Host.uEcx, Host.uEdx); /* Done? */ if ( ( (uintptr_t)(pCurLeaf - paLeaves) >= cLeaves || pCurLeaf->uLeaf != uLeaf) && ( (uLeaf == 0x4 && ((Host.uEax & 0x000f) == 0 || (Host.uEax & 0x000f) >= 8)) || (uLeaf == 0x7 && Host.uEax == 0) || (uLeaf == 0xb && ((Host.uEcx & 0xff00) == 0 || (Host.uEcx & 0xff00) >= 8)) || (uLeaf == 0xb && (Host.uEcx & 0xff) != uSubLeaf) || (uLeaf == 0xd && uSubLeaf >= 128) ) ) break; } } pNextLeaf = pCurLeaf; /* * If verbose, decode it. */ if (iVerbosity && paLeaves[0].uLeaf == 0) pHlp->pfnPrintf(pHlp, "%36s %.04s%.04s%.04s\n" "%36s 0x00000000-%#010x\n" , "Name:", &paLeaves[0].uEbx, &paLeaves[0].uEdx, &paLeaves[0].uEcx, "Supports:", paLeaves[0].uEax); if (iVerbosity && (pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0x00000001), 0)) != NULL) cpumR3CpuIdInfoStdLeaf1Details(pHlp, pCurLeaf, iVerbosity > 1, fIntel); if (iVerbosity && (pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0x00000007), 0)) != NULL) cpumR3CpuIdInfoStdLeaf7Details(pHlp, paLeaves, cLeaves, pCurLeaf, iVerbosity > 1); if (iVerbosity && (pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0x0000000d), 0)) != NULL) cpumR3CpuIdInfoStdLeaf13Details(pHlp, paLeaves, cLeaves, pCurLeaf, iVerbosity > 1); pCurLeaf = pNextLeaf; /* * Hypervisor leaves. * * Unlike most of the other leaves reported, the guest hypervisor leaves * aren't a subset of the host CPUID bits. */ pCurLeaf = cpumR3CpuIdInfoRawRange(pHlp, paLeaves, cLeaves, pCurLeaf, UINT32_C(0x3fffffff), "Unknown CPUID Leaves"); #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) ASMCpuIdExSlow(UINT32_C(0x40000000), 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx); #endif cHstMax = Host.uEax >= UINT32_C(0x40000001) && Host.uEax <= UINT32_C(0x40000fff) ? Host.uEax : 0; cGstMax = (uintptr_t)(pCurLeaf - paLeaves) < cLeaves && pCurLeaf->uLeaf == UINT32_C(0x40000000) ? RT_MIN(pCurLeaf->uEax, UINT32_C(0x40000fff)) : 0; cMax = RT_MAX(cHstMax, cGstMax); if (cMax >= UINT32_C(0x40000000)) { pNextLeaf = cpumR3CpuIdInfoRawRange(pHlp, paLeaves, cLeaves, pCurLeaf, cMax, "Raw Hypervisor CPUID Leaves"); /** @todo dump these in more detail. */ pCurLeaf = pNextLeaf; } /* * Extended. Custom raw dump here due to ECX sub-leaves host handling. * Implemented after AMD specs. */ pCurLeaf = cpumR3CpuIdInfoRawRange(pHlp, paLeaves, cLeaves, pCurLeaf, UINT32_C(0x7fffffff), "Unknown CPUID Leaves"); #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) ASMCpuIdExSlow(UINT32_C(0x80000000), 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx); #endif cHstMax = RTX86IsValidExtRange(Host.uEax) ? RT_MIN(Host.uEax, UINT32_C(0x80000fff)) : 0; cGstMax = (uintptr_t)(pCurLeaf - paLeaves) < cLeaves && pCurLeaf->uLeaf == UINT32_C(0x80000000) ? RT_MIN(pCurLeaf->uEax, UINT32_C(0x80000fff)) : 0; cMax = RT_MAX(cHstMax, cGstMax); if (cMax >= UINT32_C(0x80000000)) { pHlp->pfnPrintf(pHlp, " Raw Extended CPUID Leaves\n" " Leaf/sub-leaf eax ebx ecx edx\n"); PCCPUMCPUIDLEAF pExtLeaf = pCurLeaf; for (uLeaf = UINT32_C(0x80000000); uLeaf <= cMax; uLeaf++) { uint32_t cMaxSubLeaves = 1; if (uLeaf == UINT32_C(0x8000001d)) cMaxSubLeaves = 16; for (uint32_t uSubLeaf = 0; uSubLeaf < cMaxSubLeaves; uSubLeaf++) { #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) ASMCpuIdExSlow(uLeaf, 0, uSubLeaf, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx); #endif if ( (uintptr_t)(pCurLeaf - paLeaves) < cLeaves && pCurLeaf->uLeaf == uLeaf && pCurLeaf->uSubLeaf == uSubLeaf) { pHlp->pfnPrintf(pHlp, "Gst: %08x/%04x %08x %08x %08x %08x\n" "Hst: %08x %08x %08x %08x\n", uLeaf, uSubLeaf, pCurLeaf->uEax, pCurLeaf->uEbx, pCurLeaf->uEcx, pCurLeaf->uEdx, Host.uEax, Host.uEbx, Host.uEcx, Host.uEdx); pCurLeaf++; } else if ( uLeaf != 0xd || uSubLeaf <= 1 || Host.uEbx != 0 ) pHlp->pfnPrintf(pHlp, "Hst: %08x/%04x %08x %08x %08x %08x\n", uLeaf, uSubLeaf, Host.uEax, Host.uEbx, Host.uEcx, Host.uEdx); /* Done? */ if ( ( (uintptr_t)(pCurLeaf - paLeaves) >= cLeaves || pCurLeaf->uLeaf != uLeaf) && (uLeaf == UINT32_C(0x8000001d) && ((Host.uEax & 0x000f) == 0 || (Host.uEax & 0x000f) >= 8)) ) break; } } pNextLeaf = pCurLeaf; /* * Understandable output */ if (iVerbosity) pHlp->pfnPrintf(pHlp, "Ext Name: %.4s%.4s%.4s\n" "Ext Supports: 0x80000000-%#010x\n", &pExtLeaf->uEbx, &pExtLeaf->uEdx, &pExtLeaf->uEcx, pExtLeaf->uEax); pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0x80000001), 0); if (iVerbosity && pCurLeaf) { uint32_t uEAX = pCurLeaf->uEax; pHlp->pfnPrintf(pHlp, "Family: %d \tExtended: %d \tEffective: %d\n" "Model: %d \tExtended: %d \tEffective: %d\n" "Stepping: %d\n" "Brand ID: %#05x\n", (uEAX >> 8) & 0xf, (uEAX >> 20) & 0x7f, RTX86GetCpuFamily(uEAX), (uEAX >> 4) & 0xf, (uEAX >> 16) & 0x0f, RTX86GetCpuModel(uEAX, fIntel), RTX86GetCpuStepping(uEAX), pCurLeaf->uEbx & 0xfff); if (iVerbosity == 1) { cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEdx, g_aExtLeaf1EdxSubFields, "Ext Features EDX:", 34); cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEcx, g_aExtLeaf1EdxSubFields, "Ext Features ECX:", 34); } else { #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) ASMCpuIdExSlow(0x80000001, 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx); #endif pHlp->pfnPrintf(pHlp, "Ext Features\n"); pHlp->pfnPrintf(pHlp, " Mnemonic - Description = guest (host)\n"); cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEdx, Host.uEdx, g_aExtLeaf1EdxSubFields, 56); cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEcx, Host.uEcx, g_aExtLeaf1EcxSubFields, 56); if (Host.uEcx & X86_CPUID_AMD_FEATURE_ECX_SVM) { pHlp->pfnPrintf(pHlp, "SVM Feature Identification (leaf A):\n"); #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) ASMCpuIdExSlow(0x8000000a, 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx); #endif pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0x8000000a), 0); uint32_t const uGstEdx = pCurLeaf ? pCurLeaf->uEdx : 0; cpumR3CpuIdInfoVerboseCompareListU32(pHlp, uGstEdx, Host.uEdx, g_aExtLeafAEdxSubFields, 56); } } } if (iVerbosity && (pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0x80000002), 0)) != NULL) { char szString[4*4*3+1] = {0}; uint32_t *pu32 = (uint32_t *)szString; *pu32++ = pCurLeaf->uEax; *pu32++ = pCurLeaf->uEbx; *pu32++ = pCurLeaf->uEcx; *pu32++ = pCurLeaf->uEdx; pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0x80000003), 0); if (pCurLeaf) { *pu32++ = pCurLeaf->uEax; *pu32++ = pCurLeaf->uEbx; *pu32++ = pCurLeaf->uEcx; *pu32++ = pCurLeaf->uEdx; } pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0x80000004), 0); if (pCurLeaf) { *pu32++ = pCurLeaf->uEax; *pu32++ = pCurLeaf->uEbx; *pu32++ = pCurLeaf->uEcx; *pu32++ = pCurLeaf->uEdx; } pHlp->pfnPrintf(pHlp, "Full Name: \"%s\"\n", szString); } if (iVerbosity && (pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0x80000005), 0)) != NULL) { uint32_t uEAX = pCurLeaf->uEax; uint32_t uEBX = pCurLeaf->uEbx; uint32_t uECX = pCurLeaf->uEcx; uint32_t uEDX = pCurLeaf->uEdx; char sz1[32]; char sz2[32]; pHlp->pfnPrintf(pHlp, "TLB 2/4M Instr/Uni: %s %3d entries\n" "TLB 2/4M Data: %s %3d entries\n", getCacheAss((uEAX >> 8) & 0xff, sz1), (uEAX >> 0) & 0xff, getCacheAss((uEAX >> 24) & 0xff, sz2), (uEAX >> 16) & 0xff); pHlp->pfnPrintf(pHlp, "TLB 4K Instr/Uni: %s %3d entries\n" "TLB 4K Data: %s %3d entries\n", getCacheAss((uEBX >> 8) & 0xff, sz1), (uEBX >> 0) & 0xff, getCacheAss((uEBX >> 24) & 0xff, sz2), (uEBX >> 16) & 0xff); pHlp->pfnPrintf(pHlp, "L1 Instr Cache Line Size: %d bytes\n" "L1 Instr Cache Lines Per Tag: %d\n" "L1 Instr Cache Associativity: %s\n" "L1 Instr Cache Size: %d KB\n", (uEDX >> 0) & 0xff, (uEDX >> 8) & 0xff, getCacheAss((uEDX >> 16) & 0xff, sz1), (uEDX >> 24) & 0xff); pHlp->pfnPrintf(pHlp, "L1 Data Cache Line Size: %d bytes\n" "L1 Data Cache Lines Per Tag: %d\n" "L1 Data Cache Associativity: %s\n" "L1 Data Cache Size: %d KB\n", (uECX >> 0) & 0xff, (uECX >> 8) & 0xff, getCacheAss((uECX >> 16) & 0xff, sz1), (uECX >> 24) & 0xff); } if (iVerbosity && (pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0x80000006), 0)) != NULL) { uint32_t uEAX = pCurLeaf->uEax; uint32_t uEBX = pCurLeaf->uEbx; uint32_t uEDX = pCurLeaf->uEdx; pHlp->pfnPrintf(pHlp, "L2 TLB 2/4M Instr/Uni: %s %4d entries\n" "L2 TLB 2/4M Data: %s %4d entries\n", getL2CacheAss((uEAX >> 12) & 0xf), (uEAX >> 0) & 0xfff, getL2CacheAss((uEAX >> 28) & 0xf), (uEAX >> 16) & 0xfff); pHlp->pfnPrintf(pHlp, "L2 TLB 4K Instr/Uni: %s %4d entries\n" "L2 TLB 4K Data: %s %4d entries\n", getL2CacheAss((uEBX >> 12) & 0xf), (uEBX >> 0) & 0xfff, getL2CacheAss((uEBX >> 28) & 0xf), (uEBX >> 16) & 0xfff); pHlp->pfnPrintf(pHlp, "L2 Cache Line Size: %d bytes\n" "L2 Cache Lines Per Tag: %d\n" "L2 Cache Associativity: %s\n" "L2 Cache Size: %d KB\n", (uEDX >> 0) & 0xff, (uEDX >> 8) & 0xf, getL2CacheAss((uEDX >> 12) & 0xf), (uEDX >> 16) & 0xffff); } if (iVerbosity && (pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0x80000007), 0)) != NULL) { #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) ASMCpuIdExSlow(UINT32_C(0x80000007), 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx); #endif if (pCurLeaf->uEdx || (Host.uEdx && iVerbosity)) { if (iVerbosity < 1) cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEdx, g_aExtLeaf7EdxSubFields, "APM Features EDX:", 34); else cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEdx, Host.uEdx, g_aExtLeaf7EdxSubFields, 56); } } pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0x80000008), 0); if (pCurLeaf != NULL) { #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) ASMCpuIdExSlow(UINT32_C(0x80000008), 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx); #endif if (pCurLeaf->uEbx || (Host.uEbx && iVerbosity)) { if (iVerbosity < 1) cpumR3CpuIdInfoMnemonicListU32(pHlp, pCurLeaf->uEbx, g_aExtLeaf8EbxSubFields, "Ext Features ext IDs EBX:", 34); else cpumR3CpuIdInfoVerboseCompareListU32(pHlp, pCurLeaf->uEbx, Host.uEbx, g_aExtLeaf8EbxSubFields, 56); } if (iVerbosity) { uint32_t uEAX = pCurLeaf->uEax; uint32_t uECX = pCurLeaf->uEcx; /** @todo 0x80000008:EAX[23:16] is only defined for AMD. We'll get 0 on Intel. On * AMD if we get 0, the guest physical address width should be taken from * 0x80000008:EAX[7:0] instead. Guest Physical address width is relevant * for guests using nested paging. */ pHlp->pfnPrintf(pHlp, "Physical Address Width: %d bits\n" "Virtual Address Width: %d bits\n" "Guest Physical Address Width: %d bits\n", (uEAX >> 0) & 0xff, (uEAX >> 8) & 0xff, (uEAX >> 16) & 0xff); /** @todo 0x80000008:ECX is reserved on Intel (we'll get incorrect physical core * count here). */ pHlp->pfnPrintf(pHlp, "Physical Core Count: %d\n", ((uECX >> 0) & 0xff) + 1); } } pCurLeaf = pNextLeaf; } /* * Centaur. */ pCurLeaf = cpumR3CpuIdInfoRawRange(pHlp, paLeaves, cLeaves, pCurLeaf, UINT32_C(0xbfffffff), "Unknown CPUID Leaves"); #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) ASMCpuIdExSlow(UINT32_C(0xc0000000), 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx); #endif cHstMax = Host.uEax >= UINT32_C(0xc0000001) && Host.uEax <= UINT32_C(0xc0000fff) ? RT_MIN(Host.uEax, UINT32_C(0xc0000fff)) : 0; cGstMax = (uintptr_t)(pCurLeaf - paLeaves) < cLeaves && pCurLeaf->uLeaf == UINT32_C(0xc0000000) ? RT_MIN(pCurLeaf->uEax, UINT32_C(0xc0000fff)) : 0; cMax = RT_MAX(cHstMax, cGstMax); if (cMax >= UINT32_C(0xc0000000)) { pNextLeaf = cpumR3CpuIdInfoRawRange(pHlp, paLeaves, cLeaves, pCurLeaf, cMax, "Raw Centaur CPUID Leaves"); /* * Understandable output */ if (iVerbosity && (pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0xc0000000), 0)) != NULL) pHlp->pfnPrintf(pHlp, "Centaur Supports: 0xc0000000-%#010x\n", pCurLeaf->uEax); if (iVerbosity && (pCurLeaf = cpumCpuIdGetLeafInt(paLeaves, cLeaves, UINT32_C(0xc0000001), 0)) != NULL) { #if defined(RT_ARCH_X86) || defined(RT_ARCH_AMD64) ASMCpuIdExSlow(0xc0000001, 0, 0, 0, &Host.uEax, &Host.uEbx, &Host.uEcx, &Host.uEdx); #endif uint32_t uEdxGst = pCurLeaf->uEdx; uint32_t uEdxHst = Host.uEdx; if (iVerbosity == 1) { pHlp->pfnPrintf(pHlp, "Centaur Features EDX: "); if (uEdxGst & RT_BIT(0)) pHlp->pfnPrintf(pHlp, " AIS"); if (uEdxGst & RT_BIT(1)) pHlp->pfnPrintf(pHlp, " AIS-E"); if (uEdxGst & RT_BIT(2)) pHlp->pfnPrintf(pHlp, " RNG"); if (uEdxGst & RT_BIT(3)) pHlp->pfnPrintf(pHlp, " RNG-E"); if (uEdxGst & RT_BIT(4)) pHlp->pfnPrintf(pHlp, " LH"); if (uEdxGst & RT_BIT(5)) pHlp->pfnPrintf(pHlp, " FEMMS"); if (uEdxGst & RT_BIT(6)) pHlp->pfnPrintf(pHlp, " ACE"); if (uEdxGst & RT_BIT(7)) pHlp->pfnPrintf(pHlp, " ACE-E"); /* possibly indicating MM/HE and MM/HE-E on older chips... */ if (uEdxGst & RT_BIT(8)) pHlp->pfnPrintf(pHlp, " ACE2"); if (uEdxGst & RT_BIT(9)) pHlp->pfnPrintf(pHlp, " ACE2-E"); if (uEdxGst & RT_BIT(10)) pHlp->pfnPrintf(pHlp, " PHE"); if (uEdxGst & RT_BIT(11)) pHlp->pfnPrintf(pHlp, " PHE-E"); if (uEdxGst & RT_BIT(12)) pHlp->pfnPrintf(pHlp, " PMM"); if (uEdxGst & RT_BIT(13)) pHlp->pfnPrintf(pHlp, " PMM-E"); for (unsigned iBit = 14; iBit < 32; iBit++) if (uEdxGst & RT_BIT(iBit)) pHlp->pfnPrintf(pHlp, " %d", iBit); pHlp->pfnPrintf(pHlp, "\n"); } else { pHlp->pfnPrintf(pHlp, "Mnemonic - Description = guest (host)\n"); pHlp->pfnPrintf(pHlp, "AIS - Alternate Instruction Set = %d (%d)\n", !!(uEdxGst & RT_BIT( 0)), !!(uEdxHst & RT_BIT( 0))); pHlp->pfnPrintf(pHlp, "AIS-E - AIS enabled = %d (%d)\n", !!(uEdxGst & RT_BIT( 1)), !!(uEdxHst & RT_BIT( 1))); pHlp->pfnPrintf(pHlp, "RNG - Random Number Generator = %d (%d)\n", !!(uEdxGst & RT_BIT( 2)), !!(uEdxHst & RT_BIT( 2))); pHlp->pfnPrintf(pHlp, "RNG-E - RNG enabled = %d (%d)\n", !!(uEdxGst & RT_BIT( 3)), !!(uEdxHst & RT_BIT( 3))); pHlp->pfnPrintf(pHlp, "LH - LongHaul MSR 0000_110Ah = %d (%d)\n", !!(uEdxGst & RT_BIT( 4)), !!(uEdxHst & RT_BIT( 4))); pHlp->pfnPrintf(pHlp, "FEMMS - FEMMS = %d (%d)\n", !!(uEdxGst & RT_BIT( 5)), !!(uEdxHst & RT_BIT( 5))); pHlp->pfnPrintf(pHlp, "ACE - Advanced Cryptography Engine = %d (%d)\n", !!(uEdxGst & RT_BIT( 6)), !!(uEdxHst & RT_BIT( 6))); pHlp->pfnPrintf(pHlp, "ACE-E - ACE enabled = %d (%d)\n", !!(uEdxGst & RT_BIT( 7)), !!(uEdxHst & RT_BIT( 7))); /* possibly indicating MM/HE and MM/HE-E on older chips... */ pHlp->pfnPrintf(pHlp, "ACE2 - Advanced Cryptography Engine 2 = %d (%d)\n", !!(uEdxGst & RT_BIT( 8)), !!(uEdxHst & RT_BIT( 8))); pHlp->pfnPrintf(pHlp, "ACE2-E - ACE enabled = %d (%d)\n", !!(uEdxGst & RT_BIT( 9)), !!(uEdxHst & RT_BIT( 9))); pHlp->pfnPrintf(pHlp, "PHE - Padlock Hash Engine = %d (%d)\n", !!(uEdxGst & RT_BIT(10)), !!(uEdxHst & RT_BIT(10))); pHlp->pfnPrintf(pHlp, "PHE-E - PHE enabled = %d (%d)\n", !!(uEdxGst & RT_BIT(11)), !!(uEdxHst & RT_BIT(11))); pHlp->pfnPrintf(pHlp, "PMM - Montgomery Multiplier = %d (%d)\n", !!(uEdxGst & RT_BIT(12)), !!(uEdxHst & RT_BIT(12))); pHlp->pfnPrintf(pHlp, "PMM-E - PMM enabled = %d (%d)\n", !!(uEdxGst & RT_BIT(13)), !!(uEdxHst & RT_BIT(13))); pHlp->pfnPrintf(pHlp, "14 - Reserved = %d (%d)\n", !!(uEdxGst & RT_BIT(14)), !!(uEdxHst & RT_BIT(14))); pHlp->pfnPrintf(pHlp, "15 - Reserved = %d (%d)\n", !!(uEdxGst & RT_BIT(15)), !!(uEdxHst & RT_BIT(15))); pHlp->pfnPrintf(pHlp, "Parallax = %d (%d)\n", !!(uEdxGst & RT_BIT(16)), !!(uEdxHst & RT_BIT(16))); pHlp->pfnPrintf(pHlp, "Parallax enabled = %d (%d)\n", !!(uEdxGst & RT_BIT(17)), !!(uEdxHst & RT_BIT(17))); pHlp->pfnPrintf(pHlp, "Overstress = %d (%d)\n", !!(uEdxGst & RT_BIT(18)), !!(uEdxHst & RT_BIT(18))); pHlp->pfnPrintf(pHlp, "Overstress enabled = %d (%d)\n", !!(uEdxGst & RT_BIT(19)), !!(uEdxHst & RT_BIT(19))); pHlp->pfnPrintf(pHlp, "TM3 - Temperature Monitoring 3 = %d (%d)\n", !!(uEdxGst & RT_BIT(20)), !!(uEdxHst & RT_BIT(20))); pHlp->pfnPrintf(pHlp, "TM3-E - TM3 enabled = %d (%d)\n", !!(uEdxGst & RT_BIT(21)), !!(uEdxHst & RT_BIT(21))); pHlp->pfnPrintf(pHlp, "RNG2 - Random Number Generator 2 = %d (%d)\n", !!(uEdxGst & RT_BIT(22)), !!(uEdxHst & RT_BIT(22))); pHlp->pfnPrintf(pHlp, "RNG2-E - RNG2 enabled = %d (%d)\n", !!(uEdxGst & RT_BIT(23)), !!(uEdxHst & RT_BIT(23))); pHlp->pfnPrintf(pHlp, "24 - Reserved = %d (%d)\n", !!(uEdxGst & RT_BIT(24)), !!(uEdxHst & RT_BIT(24))); pHlp->pfnPrintf(pHlp, "PHE2 - Padlock Hash Engine 2 = %d (%d)\n", !!(uEdxGst & RT_BIT(25)), !!(uEdxHst & RT_BIT(25))); pHlp->pfnPrintf(pHlp, "PHE2-E - PHE2 enabled = %d (%d)\n", !!(uEdxGst & RT_BIT(26)), !!(uEdxHst & RT_BIT(26))); for (unsigned iBit = 27; iBit < 32; iBit++) if ((uEdxGst | uEdxHst) & RT_BIT(iBit)) pHlp->pfnPrintf(pHlp, "Bit %d = %d (%d)\n", iBit, !!(uEdxGst & RT_BIT(iBit)), !!(uEdxHst & RT_BIT(iBit))); pHlp->pfnPrintf(pHlp, "\n"); } } pCurLeaf = pNextLeaf; } /* * The remainder. */ pCurLeaf = cpumR3CpuIdInfoRawRange(pHlp, paLeaves, cLeaves, pCurLeaf, UINT32_C(0xffffffff), "Unknown CPUID Leaves"); } #endif /* !IN_VBOX_CPU_REPORT */