/* $Id: HWACCMInternal.h 15507 2008-12-15 14:51:45Z vboxsync $ */ /** @file * HWACCM - Internal header file. */ /* * Copyright (C) 2006-2007 Sun Microsystems, Inc. * * This file is part of VirtualBox Open Source Edition (OSE), as * available from http://www.virtualbox.org. This file is free software; * you can redistribute it and/or modify it under the terms of the GNU * General Public License (GPL) as published by the Free Software * Foundation, in version 2 as it comes in the "COPYING" file of the * VirtualBox OSE distribution. VirtualBox OSE is distributed in the * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. * * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa * Clara, CA 95054 USA or visit http://www.sun.com if you need * additional information or have any questions. */ #ifndef ___HWACCMInternal_h #define ___HWACCMInternal_h #include #include #include #include #include #include #include #include #include #include #include #if HC_ARCH_BITS == 64 || defined(VBOX_WITH_HYBRID_32BIT_KERNEL) || defined (VBOX_WITH_64_BITS_GUESTS) /* Enable 64 bits guest support. */ # define VBOX_ENABLE_64_BITS_GUESTS #endif #define VMX_USE_CACHED_VMCS_ACCESSES #define HWACCM_VMX_EMULATE_REALMODE #define HWACCM_VTX_WITH_EPT #define HWACCM_VTX_WITH_VPID __BEGIN_DECLS /** @defgroup grp_hwaccm_int Internal * @ingroup grp_hwaccm * @internal * @{ */ /** Maximum number of exit reason statistics counters. */ #define MAX_EXITREASON_STAT 0x100 #define MASK_EXITREASON_STAT 0xff /** @name Changed flags * These flags are used to keep track of which important registers that * have been changed since last they were reset. * @{ */ #define HWACCM_CHANGED_GUEST_FPU RT_BIT(0) #define HWACCM_CHANGED_GUEST_CR0 RT_BIT(1) #define HWACCM_CHANGED_GUEST_CR3 RT_BIT(2) #define HWACCM_CHANGED_GUEST_CR4 RT_BIT(3) #define HWACCM_CHANGED_GUEST_GDTR RT_BIT(4) #define HWACCM_CHANGED_GUEST_IDTR RT_BIT(5) #define HWACCM_CHANGED_GUEST_LDTR RT_BIT(6) #define HWACCM_CHANGED_GUEST_TR RT_BIT(7) #define HWACCM_CHANGED_GUEST_SYSENTER_MSR RT_BIT(8) #define HWACCM_CHANGED_GUEST_SEGMENT_REGS RT_BIT(9) #define HWACCM_CHANGED_GUEST_DEBUG RT_BIT(10) #define HWACCM_CHANGED_HOST_CONTEXT RT_BIT(11) #define HWACCM_CHANGED_ALL ( HWACCM_CHANGED_GUEST_SEGMENT_REGS \ | HWACCM_CHANGED_GUEST_CR0 \ | HWACCM_CHANGED_GUEST_CR3 \ | HWACCM_CHANGED_GUEST_CR4 \ | HWACCM_CHANGED_GUEST_GDTR \ | HWACCM_CHANGED_GUEST_IDTR \ | HWACCM_CHANGED_GUEST_LDTR \ | HWACCM_CHANGED_GUEST_TR \ | HWACCM_CHANGED_GUEST_SYSENTER_MSR \ | HWACCM_CHANGED_GUEST_FPU \ | HWACCM_CHANGED_GUEST_DEBUG \ | HWACCM_CHANGED_HOST_CONTEXT) #define HWACCM_CHANGED_ALL_GUEST ( HWACCM_CHANGED_GUEST_SEGMENT_REGS \ | HWACCM_CHANGED_GUEST_CR0 \ | HWACCM_CHANGED_GUEST_CR3 \ | HWACCM_CHANGED_GUEST_CR4 \ | HWACCM_CHANGED_GUEST_GDTR \ | HWACCM_CHANGED_GUEST_IDTR \ | HWACCM_CHANGED_GUEST_LDTR \ | HWACCM_CHANGED_GUEST_TR \ | HWACCM_CHANGED_GUEST_SYSENTER_MSR \ | HWACCM_CHANGED_GUEST_DEBUG \ | HWACCM_CHANGED_GUEST_FPU) /** @} */ /** @name Intercepted traps * Traps that need to be intercepted so we can correctly dispatch them to the guest if required. * Currently #NM and #PF only */ #ifdef VBOX_STRICT #define HWACCM_VMX_TRAP_MASK RT_BIT(X86_XCPT_DE) | RT_BIT(X86_XCPT_NM) | RT_BIT(X86_XCPT_PF) | RT_BIT(X86_XCPT_UD) | RT_BIT(X86_XCPT_NP) | RT_BIT(X86_XCPT_SS) | RT_BIT(X86_XCPT_GP) | RT_BIT(X86_XCPT_MF) #define HWACCM_SVM_TRAP_MASK HWACCM_VMX_TRAP_MASK #else #define HWACCM_VMX_TRAP_MASK RT_BIT(X86_XCPT_NM) | RT_BIT(X86_XCPT_PF) #define HWACCM_SVM_TRAP_MASK RT_BIT(X86_XCPT_NM) | RT_BIT(X86_XCPT_PF) #endif /* All exceptions have to be intercept in emulated real-mode (minues NM & PF as they are always intercepted. */ #define HWACCM_VMX_TRAP_MASK_REALMODE RT_BIT(X86_XCPT_DE) | RT_BIT(X86_XCPT_DB) | RT_BIT(X86_XCPT_NMI) | RT_BIT(X86_XCPT_BP) | RT_BIT(X86_XCPT_OF) | RT_BIT(X86_XCPT_BR) | RT_BIT(X86_XCPT_UD) | RT_BIT(X86_XCPT_DF) | RT_BIT(X86_XCPT_CO_SEG_OVERRUN) | RT_BIT(X86_XCPT_TS) | RT_BIT(X86_XCPT_NP) | RT_BIT(X86_XCPT_SS) | RT_BIT(X86_XCPT_GP) | RT_BIT(X86_XCPT_MF) | RT_BIT(X86_XCPT_AC) | RT_BIT(X86_XCPT_MC) | RT_BIT(X86_XCPT_XF) /** @} */ /** Maxium resume loops allowed in ring 0 (safety precaution) */ #define HWACCM_MAX_RESUME_LOOPS 1024 /** Size for the EPT identity page table (1024 4 MB pages to cover the entire address space). */ #define HWACCM_EPT_IDENTITY_PG_TABLE_SIZE PAGE_SIZE /** Size of the TSS structure + 2 pages for the IO bitmap + end byte. */ #define HWACCM_VTX_TSS_SIZE (sizeof(VBOXTSS) + 2*PAGE_SIZE + 1) /** Total guest mapped memory needed. */ #define HWACCM_VTX_TOTAL_DEVHEAP_MEM (HWACCM_EPT_IDENTITY_PG_TABLE_SIZE + HWACCM_VTX_TSS_SIZE) /** HWACCM SSM version */ #define HWACCM_SSM_VERSION 4 #define HWACCM_SSM_VERSION_2_0_X 3 /* Per-cpu information. (host) */ typedef struct { RTCPUID idCpu; RTR0MEMOBJ pMemObj; /* Current ASID (AMD-V)/VPID (Intel) */ uint32_t uCurrentASID; /* TLB flush count */ uint32_t cTLBFlushes; /* Set the first time a cpu is used to make sure we start with a clean TLB. */ bool fFlushTLB; /** Configured for VT-x or AMD-V. */ bool fConfigured; /** In use by our code. (for power suspend) */ volatile bool fInUse; } HWACCM_CPUINFO; typedef HWACCM_CPUINFO *PHWACCM_CPUINFO; /* VT-x capability qword. */ typedef union { struct { uint32_t disallowed0; uint32_t allowed1; } n; uint64_t u; } VMX_CAPABILITY; /** * Switcher function, HC to RC. * * @param pVM The VM handle. * @returns Return code indicating the action to take. */ typedef DECLASMTYPE(int) FNHWACCMSWITCHERHC(PVM pVM); /** Pointer to switcher function. */ typedef FNHWACCMSWITCHERHC *PFNHWACCMSWITCHERHC; /** * HWACCM VM Instance data. * Changes to this must checked against the padding of the cfgm union in VM! */ typedef struct HWACCM { /** Set when we've initialized VMX or SVM. */ bool fInitialized; /** Set when we're using VMX/SVN at that moment. */ bool fActive; /** Set when hardware acceleration is allowed. */ bool fAllowed; /** Set if nested paging is enabled. */ bool fNestedPaging; /** Set if nested paging is allowed. */ bool fAllowNestedPaging; /** Set if we're supposed to inject an NMI. */ bool fInjectNMI; /** Set if we can support 64-bit guests or not. */ bool fAllow64BitGuests; /** Explicit alignment padding to make 32-bit gcc align u64RegisterMask * naturally. */ bool padding[1]; /** And mask for copying register contents. */ uint64_t u64RegisterMask; /** Maximum ASID allowed. */ RTUINT uMaxASID; #if HC_ARCH_BITS == 32 && defined(VBOX_ENABLE_64_BITS_GUESTS) && !defined(VBOX_WITH_HYBRID_32BIT_KERNEL) /** 32 to 64 bits switcher entrypoint. */ R0PTRTYPE(PFNHWACCMSWITCHERHC) pfnHost32ToGuest64R0; /* AMD-V 64 bits vmrun handler */ RTRCPTR pfnSVMGCVMRun64; /* VT-x 64 bits vmlaunch handler */ RTRCPTR pfnVMXGCStartVM64; /* RC handler to setup the 64 bits FPU state. */ RTRCPTR pfnSaveGuestFPU64; /* RC handler to setup the 64 bits debug state. */ RTRCPTR pfnSaveGuestDebug64; # ifdef DEBUG /* Test handler */ RTRCPTR pfnTest64; RTRCPTR uAlignment[1]; # endif #elif defined(VBOX_WITH_HYBRID_32BIT_KERNEL) uint32_t u32Alignment[1]; #endif struct { /** Set by the ring-0 driver to indicate VMX is supported by the CPU. */ bool fSupported; /** Set when we've enabled VMX. */ bool fEnabled; /** Set if VPID is supported. */ bool fVPID; /** Set if VT-x VPID is allowed. */ bool fAllowVPID; /** Virtual address of the TSS page used for real mode emulation. */ R3PTRTYPE(PVBOXTSS) pRealModeTSS; /** Virtual address of the identity page table used for real mode and protected mode without paging emulation in EPT mode. */ R3PTRTYPE(PX86PD) pNonPagingModeEPTPageTable; /** R0 memory object for the virtual APIC mmio cache. */ RTR0MEMOBJ pMemObjAPIC; /** Physical address of the virtual APIC mmio cache. */ RTHCPHYS pAPICPhys; /** Virtual address of the virtual APIC mmio cache. */ R0PTRTYPE(uint8_t *) pAPIC; /** R0 memory object for the MSR bitmap (1 page). */ RTR0MEMOBJ pMemObjMSRBitmap; /** Physical address of the MSR bitmap (1 page). */ RTHCPHYS pMSRBitmapPhys; /** Virtual address of the MSR bitmap (1 page). */ R0PTRTYPE(uint8_t *) pMSRBitmap; /** R0 memory object for the MSR entry load page (guest MSRs). */ RTR0MEMOBJ pMemObjMSREntryLoad; /** Physical address of the MSR entry load page (guest MSRs). */ RTHCPHYS pMSREntryLoadPhys; /** Virtual address of the MSR entry load page (guest MSRs). */ R0PTRTYPE(uint8_t *) pMSREntryLoad; /** R0 memory object for the MSR exit store page (guest MSRs). */ RTR0MEMOBJ pMemObjMSRExitStore; /** Physical address of the MSR exit store page (guest MSRs). */ RTHCPHYS pMSRExitStorePhys; /** Virtual address of the MSR exit store page (guest MSRs). */ R0PTRTYPE(uint8_t *) pMSRExitStore; /** R0 memory object for the MSR exit load page (host MSRs). */ RTR0MEMOBJ pMemObjMSRExitLoad; /** Physical address of the MSR exit load page (host MSRs). */ RTHCPHYS pMSRExitLoadPhys; /** Virtual address of the MSR exit load page (host MSRs). */ R0PTRTYPE(uint8_t *) pMSRExitLoad; /** Ring 0 handlers for VT-x. */ DECLR0CALLBACKMEMBER(void, pfnSetupTaggedTLB, (PVM pVM, PVMCPU pVCpu)); /** Host CR4 value (set by ring-0 VMX init) */ uint64_t hostCR4; /** VMX MSR values */ struct { uint64_t feature_ctrl; uint64_t vmx_basic_info; VMX_CAPABILITY vmx_pin_ctls; VMX_CAPABILITY vmx_proc_ctls; VMX_CAPABILITY vmx_proc_ctls2; VMX_CAPABILITY vmx_exit; VMX_CAPABILITY vmx_entry; uint64_t vmx_misc; uint64_t vmx_cr0_fixed0; uint64_t vmx_cr0_fixed1; uint64_t vmx_cr4_fixed0; uint64_t vmx_cr4_fixed1; uint64_t vmx_vmcs_enum; uint64_t vmx_eptcaps; } msr; /** Flush types for invept & invvpid; they depend on capabilities. */ VMX_FLUSH enmFlushPage; VMX_FLUSH enmFlushContext; } vmx; struct { /** Set by the ring-0 driver to indicate SVM is supported by the CPU. */ bool fSupported; /** Set when we've enabled SVM. */ bool fEnabled; /** Set if erratum 170 affects the AMD cpu. */ bool fAlwaysFlushTLB; /** Explicit alignment padding to make 32-bit gcc align u64RegisterMask * naturally. */ bool padding[1]; /** R0 memory object for the host VM control block (VMCB). */ RTR0MEMOBJ pMemObjVMCBHost; /** Physical address of the host VM control block (VMCB). */ RTHCPHYS pVMCBHostPhys; /** Virtual address of the host VM control block (VMCB). */ R0PTRTYPE(void *) pVMCBHost; /** R0 memory object for the IO bitmap (12kb). */ RTR0MEMOBJ pMemObjIOBitmap; /** Physical address of the IO bitmap (12kb). */ RTHCPHYS pIOBitmapPhys; /** Virtual address of the IO bitmap. */ R0PTRTYPE(void *) pIOBitmap; /** R0 memory object for the MSR bitmap (8kb). */ RTR0MEMOBJ pMemObjMSRBitmap; /** Physical address of the MSR bitmap (8kb). */ RTHCPHYS pMSRBitmapPhys; /** Virtual address of the MSR bitmap. */ R0PTRTYPE(void *) pMSRBitmap; /** SVM revision. */ uint32_t u32Rev; /** SVM feature bits from cpuid 0x8000000a */ uint32_t u32Features; } svm; struct { uint32_t u32AMDFeatureECX; uint32_t u32AMDFeatureEDX; } cpuid; /** Saved error from detection */ int32_t lLastError; /** HWACCMR0Init was run */ bool fHWACCMR0Init; } HWACCM; /** Pointer to HWACCM VM instance data. */ typedef HWACCM *PHWACCM; /* Maximum number of cached entries. */ #define VMCSCACHE_MAX_ENTRY 256 /* Structure for storing read and write VMCS actions. */ typedef struct VMCSCACHE { /* CR2 is saved here for EPT syncing. */ uint64_t cr2; struct { uint32_t cValidEntries; uint32_t uAlignment; uint32_t aField[VMCSCACHE_MAX_ENTRY]; uint64_t aFieldVal[VMCSCACHE_MAX_ENTRY]; } Write; struct { uint32_t cValidEntries; uint32_t uAlignment; uint32_t aField[VMCSCACHE_MAX_ENTRY]; uint64_t aFieldVal[VMCSCACHE_MAX_ENTRY]; } Read; #ifdef DEBUG struct { RTHCPHYS pPageCpuPhys; RTHCPHYS pVMCSPhys; RTGCPTR pCache; RTGCPTR pCtx; } TestIn; struct { RTHCPHYS pVMCSPhys; RTGCPTR pCache; RTGCPTR pCtx; } TestOut; struct { uint64_t param1; uint64_t param2; uint64_t param3; uint64_t param4; } ScratchPad; #endif } VMCSCACHE; /** Pointer to VMCSCACHE. */ typedef VMCSCACHE *PVMCSCACHE; /** * HWACCM VMCPU Instance data. */ typedef struct HWACCMCPU { /** Old style FPU reporting trap mask override performed (optimization) */ bool fFPUOldStyleOverride; /** Set if we don't have to flush the TLB on VM entry. */ bool fResumeVM; /** Set if we need to flush the TLB during the world switch. */ bool fForceTLBFlush; /** Explicit alignment padding to make 32-bit gcc align u64RegisterMask * naturally. */ bool padding[1]; /** HWACCM_CHANGED_* flags. */ RTUINT fContextUseFlags; /* Id of the last cpu we were executing code on (NIL_RTCPUID for the first time) */ RTCPUID idLastCpu; /* TLB flush count */ RTUINT cTLBFlushes; /* Current ASID in use by the VM */ RTUINT uCurrentASID; struct { /** R0 memory object for the VM control structure (VMCS). */ RTR0MEMOBJ pMemObjVMCS; /** Physical address of the VM control structure (VMCS). */ RTHCPHYS pVMCSPhys; /** Virtual address of the VM control structure (VMCS). */ R0PTRTYPE(void *) pVMCS; /** Ring 0 handlers for VT-x. */ DECLR0CALLBACKMEMBER(int, pfnStartVM,(RTHCUINT fResume, PCPUMCTX pCtx, PVMCSCACHE pCache, PVM pVM, PVMCPU pVCpu)); /** Current VMX_VMCS_CTRL_PROC_EXEC_CONTROLS. */ uint64_t proc_ctls; /** Current CR0 mask. */ uint64_t cr0_mask; /** Current CR4 mask. */ uint64_t cr4_mask; /** Current EPTP. */ RTHCPHYS GCPhysEPTP; /** VMCS cache. */ VMCSCACHE VMCSCache; /** Real-mode emulation state. */ struct { X86EFLAGS eflags; uint32_t fValid; } RealMode; struct { uint64_t u64VMCSPhys; uint32_t ulVMCSRevision; uint32_t ulInstrError; uint32_t ulExitReason; RTCPUID idEnteredCpu; RTCPUID idCurrentCpu; uint32_t padding; } lasterror; /** The last seen guest paging mode (by VT-x). */ PGMMODE enmLastSeenGuestMode; /** Current guest paging mode (as seen by HWACCMR3PagingModeChanged). */ PGMMODE enmCurrGuestMode; /** Previous guest paging mode (as seen by HWACCMR3PagingModeChanged). */ PGMMODE enmPrevGuestMode; } vmx; struct { /** R0 memory object for the VM control block (VMCB). */ RTR0MEMOBJ pMemObjVMCB; /** Physical address of the VM control block (VMCB). */ RTHCPHYS pVMCBPhys; /** Virtual address of the VM control block (VMCB). */ R0PTRTYPE(void *) pVMCB; /** Ring 0 handlers for VT-x. */ DECLR0CALLBACKMEMBER(int, pfnVMRun,(RTHCPHYS pVMCBHostPhys, RTHCPHYS pVMCBPhys, PCPUMCTX pCtx, PVM pVM, PVMCPU pVCpu)); } svm; /** Event injection state. */ struct { uint32_t fPending; uint32_t errCode; uint64_t intInfo; } Event; /** Currenty shadow paging mode. */ PGMMODE enmShadowMode; /** The CPU ID of the CPU currently owning the VMCS. Set in * HWACCMR0Enter and cleared in HWACCMR0Leave. */ RTCPUID idEnteredCpu; STAMPROFILEADV StatEntry; STAMPROFILEADV StatExit1; STAMPROFILEADV StatExit2; #if 1 /* temporary for tracking down darwin issues. */ STAMPROFILEADV StatExit2Sub1; STAMPROFILEADV StatExit2Sub2; STAMPROFILEADV StatExit2Sub3; #endif STAMPROFILEADV StatInGC; STAMCOUNTER StatIntInject; STAMCOUNTER StatExitShadowNM; STAMCOUNTER StatExitGuestNM; STAMCOUNTER StatExitShadowPF; STAMCOUNTER StatExitGuestPF; STAMCOUNTER StatExitGuestUD; STAMCOUNTER StatExitGuestSS; STAMCOUNTER StatExitGuestNP; STAMCOUNTER StatExitGuestGP; STAMCOUNTER StatExitGuestDE; STAMCOUNTER StatExitGuestDB; STAMCOUNTER StatExitGuestMF; STAMCOUNTER StatExitInvpg; STAMCOUNTER StatExitInvd; STAMCOUNTER StatExitCpuid; STAMCOUNTER StatExitRdtsc; STAMCOUNTER StatExitCRxWrite[8]; STAMCOUNTER StatExitCRxRead[8]; STAMCOUNTER StatExitDRxWrite; STAMCOUNTER StatExitDRxRead; STAMCOUNTER StatExitCLTS; STAMCOUNTER StatExitLMSW; STAMCOUNTER StatExitIOWrite; STAMCOUNTER StatExitIORead; STAMCOUNTER StatExitIOStringWrite; STAMCOUNTER StatExitIOStringRead; STAMCOUNTER StatExitIrqWindow; STAMCOUNTER StatExitMaxResume; STAMCOUNTER StatIntReinject; STAMCOUNTER StatPendingHostIrq; STAMCOUNTER StatFlushPageManual; STAMCOUNTER StatFlushPhysPageManual; STAMCOUNTER StatFlushTLBManual; STAMCOUNTER StatFlushPageInvlpg; STAMCOUNTER StatFlushTLBWorldSwitch; STAMCOUNTER StatNoFlushTLBWorldSwitch; STAMCOUNTER StatFlushTLBCRxChange; STAMCOUNTER StatFlushASID; STAMCOUNTER StatFlushTLBInvlpga; STAMCOUNTER StatSwitchGuestIrq; STAMCOUNTER StatSwitchToR3; STAMCOUNTER StatTSCOffset; STAMCOUNTER StatTSCIntercept; STAMCOUNTER StatExitReasonNPF; STAMCOUNTER StatDRxArmed; STAMCOUNTER StatDRxContextSwitch; STAMCOUNTER StatDRxIOCheck; R3PTRTYPE(PSTAMCOUNTER) paStatExitReason; R0PTRTYPE(PSTAMCOUNTER) paStatExitReasonR0; } HWACCMCPU; /** Pointer to HWACCM VM instance data. */ typedef HWACCMCPU *PHWACCMCPU; #ifdef IN_RING0 VMMR0DECL(PHWACCM_CPUINFO) HWACCMR0GetCurrentCpu(); VMMR0DECL(PHWACCM_CPUINFO) HWACCMR0GetCurrentCpuEx(RTCPUID idCpu); #ifdef VBOX_STRICT VMMR0DECL(void) HWACCMDumpRegs(PVM pVM, PCPUMCTX pCtx); VMMR0DECL(void) HWACCMR0DumpDescriptor(PX86DESCHC Desc, RTSEL Sel, const char *pszMsg); #else #define HWACCMDumpRegs(a, b) do { } while (0) #define HWACCMR0DumpDescriptor(a, b, c) do { } while (0) #endif /* Dummy callback handlers. */ VMMR0DECL(int) HWACCMR0DummyEnter(PVM pVM, PVMCPU pVCpu, PHWACCM_CPUINFO pCpu); VMMR0DECL(int) HWACCMR0DummyLeave(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx); VMMR0DECL(int) HWACCMR0DummyEnableCpu(PHWACCM_CPUINFO pCpu, PVM pVM, void *pvPageCpu, RTHCPHYS pPageCpuPhys); VMMR0DECL(int) HWACCMR0DummyDisableCpu(PHWACCM_CPUINFO pCpu, void *pvPageCpu, RTHCPHYS pPageCpuPhys); VMMR0DECL(int) HWACCMR0DummyInitVM(PVM pVM); VMMR0DECL(int) HWACCMR0DummyTermVM(PVM pVM); VMMR0DECL(int) HWACCMR0DummySetupVM(PVM pVM); VMMR0DECL(int) HWACCMR0DummyRunGuestCode(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx); VMMR0DECL(int) HWACCMR0DummySaveHostState(PVM pVM, PVMCPU pVCpu); VMMR0DECL(int) HWACCMR0DummyLoadGuestState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx); # ifdef VBOX_WITH_HYBRID_32BIT_KERNEL /** * Gets 64-bit GDTR and IDTR on darwin. * @param pGdtr Where to store the 64-bit GDTR. * @param pIdtr Where to store the 64-bit IDTR. */ DECLASM(void) hwaccmR0Get64bitGDTRandIDTR(PX86XDTR64 pGdtr, PX86XDTR64 pIdtr); /** * Gets 64-bit CR3 on darwin. * @returns CR3 */ DECLASM(uint64_t) hwaccmR0Get64bitCR3(void); # endif #endif /* IN_RING0 */ /** @} */ __END_DECLS #endif