CPUMInternal.h@ 102806

Last change on this file since 102806 was 101603, checked in by vboxsync, 13 months ago
VMM: Nested VMX: Todo regarding reminder to add 'enmHwVirt' when next bumping CPUM SSM version.
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1	/* $Id: CPUMInternal.h 101603 2023-10-26 11:15:56Z vboxsync $ */
2	/** @file
3	* CPUM - Internal header file.
4	*/
5
6	/*
7	* Copyright (C) 2006-2023 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.virtualbox.org.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* SPDX-License-Identifier: GPL-3.0-only
26	*/
27
28	#ifndef VMM_INCLUDED_SRC_include_CPUMInternal_h
29	#define VMM_INCLUDED_SRC_include_CPUMInternal_h
30	#ifndef RT_WITHOUT_PRAGMA_ONCE
31	# pragma once
32	#endif
33
34	#ifndef VBOX_FOR_DTRACE_LIB
35	# include <VBox/cdefs.h>
36	# include <VBox/types.h>
37	# include <VBox/vmm/stam.h>
38	# include <iprt/x86.h>
39	# include <VBox/vmm/pgm.h>
40	#else
41	# pragma D depends_on library x86.d
42	# pragma D depends_on library cpumctx.d
43	# pragma D depends_on library cpum.d
44
45	/* Some fudging. */
46	typedef uint64_t STAMCOUNTER;
47	#endif
48
49
50
51
52	/** @defgroup grp_cpum_int Internals
53	* @ingroup grp_cpum
54	* @internal
55	* @{
56	*/
57
58	/** Use flags (CPUM::fUseFlags).
59	* (Don't forget to sync this with CPUMInternal.mac !)
60	* @note Was part of saved state (6.1 and earlier).
61	* @{ */
62	/** Indicates that we've saved the host FPU, SSE, whatever state and that it
63	* needs to be restored. */
64	#define CPUM_USED_FPU_HOST RT_BIT(0)
65	/** Indicates that we've loaded the guest FPU, SSE, whatever state and that it
66	* needs to be saved.
67	* @note Mirrored in CPUMCTX::fUsedFpuGuest for the HM switcher code. */
68	#define CPUM_USED_FPU_GUEST RT_BIT(10)
69	/** Used the guest FPU, SSE or such stuff since last we were in REM.
70	* REM syncing is clearing this, lazy FPU is setting it. */
71	#define CPUM_USED_FPU_SINCE_REM RT_BIT(1)
72	/** The XMM state was manually restored. (AMD only) */
73	#define CPUM_USED_MANUAL_XMM_RESTORE RT_BIT(2)
74
75	/** Host OS is using SYSENTER and we must NULL the CS. */
76	#define CPUM_USE_SYSENTER RT_BIT(3)
77	/** Host OS is using SYSENTER and we must NULL the CS. */
78	#define CPUM_USE_SYSCALL RT_BIT(4)
79
80	/** Debug registers are used by host and that DR7 and DR6 must be saved and
81	* disabled when switching to raw-mode. */
82	#define CPUM_USE_DEBUG_REGS_HOST RT_BIT(5)
83	/** Records that we've saved the host DRx registers.
84	* In ring-0 this means all (DR0-7), while in raw-mode context this means DR0-3
85	* since DR6 and DR7 are covered by CPUM_USE_DEBUG_REGS_HOST. */
86	#define CPUM_USED_DEBUG_REGS_HOST RT_BIT(6)
87	/** Set to indicate that we should save host DR0-7 and load the hypervisor debug
88	* registers in the raw-mode world switchers. (See CPUMRecalcHyperDRx.) */
89	#define CPUM_USE_DEBUG_REGS_HYPER RT_BIT(7)
90	/** Used in ring-0 to indicate that we have loaded the hypervisor debug
91	* registers. */
92	#define CPUM_USED_DEBUG_REGS_HYPER RT_BIT(8)
93	/** Used in ring-0 to indicate that we have loaded the guest debug
94	* registers (DR0-3 and maybe DR6) for direct use by the guest.
95	* DR7 (and AMD-V DR6) are handled via the VMCB. */
96	#define CPUM_USED_DEBUG_REGS_GUEST RT_BIT(9)
97
98	/** Host CPU requires fxsave/fxrstor leaky bit handling. */
99	#define CPUM_USE_FFXSR_LEAKY RT_BIT(19)
100	/** Set if the VM supports long-mode. */
101	#define CPUM_USE_SUPPORTS_LONGMODE RT_BIT(20)
102	/** @} */
103
104
105	/** @name CPUM Saved State Version.
106	* @{ */
107	/** The current saved state version.
108	* @todo When bumping to next version, add CPUMCTX::enmHwVirt to the saved
109	* state. */
110	#define CPUM_SAVED_STATE_VERSION CPUM_SAVED_STATE_VERSION_HWVIRT_VMX_4
111	/** The saved state version with u32RestoreProcCtls2 for Nested Microsoft
112	* Hyper-V. */
113	#define CPUM_SAVED_STATE_VERSION_HWVIRT_VMX_4 23
114	/** The saved state version with more virtual VMCS fields (HLAT prefix size,
115	* PCONFIG-exiting bitmap, HLAT ptr, VM-exit ctls2) and a CPUMCTX field (VM-exit
116	* ctls2 MSR). */
117	#define CPUM_SAVED_STATE_VERSION_HWVIRT_VMX_3 22
118	/** The saved state version with PAE PDPEs added. */
119	#define CPUM_SAVED_STATE_VERSION_PAE_PDPES 21
120	/** The saved state version with more virtual VMCS fields and CPUMCTX VMX fields. */
121	#define CPUM_SAVED_STATE_VERSION_HWVIRT_VMX_2 20
122	/** The saved state version including VMX hardware virtualization state. */
123	#define CPUM_SAVED_STATE_VERSION_HWVIRT_VMX 19
124	/** The saved state version including SVM hardware virtualization state. */
125	#define CPUM_SAVED_STATE_VERSION_HWVIRT_SVM 18
126	/** The saved state version including XSAVE state. */
127	#define CPUM_SAVED_STATE_VERSION_XSAVE 17
128	/** The saved state version with good CPUID leaf count. */
129	#define CPUM_SAVED_STATE_VERSION_GOOD_CPUID_COUNT 16
130	/** CPUID changes with explode forgetting to update the leaf count on
131	* restore, resulting in garbage being saved restoring+saving old states). */
132	#define CPUM_SAVED_STATE_VERSION_BAD_CPUID_COUNT 15
133	/** The saved state version before the CPUIDs changes. */
134	#define CPUM_SAVED_STATE_VERSION_PUT_STRUCT 14
135	/** The saved state version before using SSMR3PutStruct. */
136	#define CPUM_SAVED_STATE_VERSION_MEM 13
137	/** The saved state version before introducing the MSR size field. */
138	#define CPUM_SAVED_STATE_VERSION_NO_MSR_SIZE 12
139	/** The saved state version of 3.2, 3.1 and 3.3 trunk before the hidden
140	* selector register change (CPUM_CHANGED_HIDDEN_SEL_REGS_INVALID). */
141	#define CPUM_SAVED_STATE_VERSION_VER3_2 11
142	/** The saved state version of 3.0 and 3.1 trunk before the teleportation
143	* changes. */
144	#define CPUM_SAVED_STATE_VERSION_VER3_0 10
145	/** The saved state version for the 2.1 trunk before the MSR changes. */
146	#define CPUM_SAVED_STATE_VERSION_VER2_1_NOMSR 9
147	/** The saved state version of 2.0, used for backwards compatibility. */
148	#define CPUM_SAVED_STATE_VERSION_VER2_0 8
149	/** The saved state version of 1.6, used for backwards compatibility. */
150	#define CPUM_SAVED_STATE_VERSION_VER1_6 6
151	/** @} */
152
153
154	/** @name XSAVE limits.
155	* @{ */
156	/** Max size we accept for the XSAVE area.
157	* @see CPUMCTX::abXSave */
158	#define CPUM_MAX_XSAVE_AREA_SIZE (0x4000 - 0x300)
159	/* Min size we accept for the XSAVE area. */
160	#define CPUM_MIN_XSAVE_AREA_SIZE 0x240
161	/** @} */
162
163
164	/**
165	* CPU info
166	*/
167	typedef struct CPUMINFO
168	{
169	/** The number of MSR ranges (CPUMMSRRANGE) in the array pointed to below. */
170	uint32_t cMsrRanges;
171	/** Mask applied to ECX before looking up the MSR for a RDMSR/WRMSR
172	* instruction. Older hardware has been observed to ignore higher bits. */
173	uint32_t fMsrMask;
174
175	/** MXCSR mask. */
176	uint32_t fMxCsrMask;
177
178	/** The number of CPUID leaves (CPUMCPUIDLEAF) in the array pointed to below. */
179	uint32_t cCpuIdLeaves;
180	/** The index of the first extended CPUID leaf in the array.
181	* Set to cCpuIdLeaves if none present. */
182	uint32_t iFirstExtCpuIdLeaf;
183	/** How to handle unknown CPUID leaves. */
184	CPUMUNKNOWNCPUID enmUnknownCpuIdMethod;
185	/** For use with CPUMUNKNOWNCPUID_DEFAULTS (DB & VM),
186	* CPUMUNKNOWNCPUID_LAST_STD_LEAF (VM) and CPUMUNKNOWNCPUID_LAST_STD_LEAF_WITH_ECX (VM). */
187	CPUMCPUID DefCpuId;
188
189	/** Scalable bus frequency used for reporting other frequencies. */
190	uint64_t uScalableBusFreq;
191
192	/** Pointer to the MSR ranges (for compatibility with old hyper heap code). */
193	R3PTRTYPE(PCPUMMSRRANGE) paMsrRangesR3;
194	/** Pointer to the CPUID leaves (for compatibility with old hyper heap code). */
195	R3PTRTYPE(PCPUMCPUIDLEAF) paCpuIdLeavesR3;
196
197	/** CPUID leaves. */
198	CPUMCPUIDLEAF aCpuIdLeaves[256];
199	/** MSR ranges.
200	* @todo This is insane, so might want to move this into a separate
201	* allocation. The insanity is mainly for more recent AMD CPUs. */
202	CPUMMSRRANGE aMsrRanges[8192];
203	} CPUMINFO;
204	/** Pointer to a CPU info structure. */
205	typedef CPUMINFO *PCPUMINFO;
206	/** Pointer to a const CPU info structure. */
207	typedef CPUMINFO const *CPCPUMINFO;
208
209
210	/**
211	* The saved host CPU state.
212	*/
213	typedef struct CPUMHOSTCTX
214	{
215	/** The extended state (FPU/SSE/AVX/AVX-2/XXXX). Must be aligned on 64 bytes. */
216	union /* no tag */
217	{
218	X86XSAVEAREA XState;
219	/** Byte view for simple indexing and space allocation.
220	* @note Must match or exceed the size of CPUMCTX::abXState. */
221	uint8_t abXState[0x4000 - 0x300];
222	} CPUM_UNION_NM(u);
223
224	/** General purpose register, selectors, flags and more
225	* @{ */
226	/** General purpose register ++
227	* { */
228	/uint64_t rax; - scratch/
229	uint64_t rbx;
230	/uint64_t rcx; - scratch/
231	/uint64_t rdx; - scratch/
232	uint64_t rdi;
233	uint64_t rsi;
234	uint64_t rbp;
235	uint64_t rsp;
236	/uint64_t r8; - scratch/
237	/uint64_t r9; - scratch/
238	uint64_t r10;
239	uint64_t r11;
240	uint64_t r12;
241	uint64_t r13;
242	uint64_t r14;
243	uint64_t r15;
244	/uint64_t rip; - scratch/
245	uint64_t rflags;
246	/** @} */
247
248	/** Selector registers
249	* @{ */
250	RTSEL ss;
251	RTSEL ssPadding;
252	RTSEL gs;
253	RTSEL gsPadding;
254	RTSEL fs;
255	RTSEL fsPadding;
256	RTSEL es;
257	RTSEL esPadding;
258	RTSEL ds;
259	RTSEL dsPadding;
260	RTSEL cs;
261	RTSEL csPadding;
262	/** @} */
263
264	/** Control registers.
265	* @{ */
266	/** The CR0 FPU state in HM mode. */
267	uint64_t cr0;
268	/uint64_t cr2; - scratch/
269	uint64_t cr3;
270	uint64_t cr4;
271	uint64_t cr8;
272	/** @} */
273
274	/** Debug registers.
275	* @{ */
276	uint64_t dr0;
277	uint64_t dr1;
278	uint64_t dr2;
279	uint64_t dr3;
280	uint64_t dr6;
281	uint64_t dr7;
282	/** @} */
283
284	/** Global Descriptor Table register. */
285	X86XDTR64 gdtr;
286	uint16_t gdtrPadding;
287	/** Interrupt Descriptor Table register. */
288	X86XDTR64 idtr;
289	uint16_t idtrPadding;
290	/** The task register. */
291	RTSEL ldtr;
292	RTSEL ldtrPadding;
293	/** The task register. */
294	RTSEL tr;
295	RTSEL trPadding;
296
297	/** MSRs
298	* @{ */
299	CPUMSYSENTER SysEnter;
300	uint64_t FSbase;
301	uint64_t GSbase;
302	uint64_t efer;
303	/** @} */
304
305	/** The XCR0 register. */
306	uint64_t xcr0;
307	/** The mask to pass to XSAVE/XRSTOR in EDX:EAX. If zero we use
308	* FXSAVE/FXRSTOR (since bit 0 will always be set, we only need to test it). */
309	uint64_t fXStateMask;
310
311	/* padding to get 64byte aligned size */
312	uint8_t auPadding[24];
313	#if HC_ARCH_BITS != 64
314	# error HC_ARCH_BITS not defined or unsupported
315	#endif
316	} CPUMHOSTCTX;
317	#ifndef VBOX_FOR_DTRACE_LIB
318	AssertCompileSizeAlignment(CPUMHOSTCTX, 64);
319	#endif
320	/** Pointer to the saved host CPU state. */
321	typedef CPUMHOSTCTX *PCPUMHOSTCTX;
322
323
324	/**
325	* The hypervisor context CPU state (just DRx left now).
326	*/
327	typedef struct CPUMHYPERCTX
328	{
329	/** Debug registers.
330	* @remarks DR4 and DR5 should not be used since they are aliases for
331	* DR6 and DR7 respectively on both AMD and Intel CPUs.
332	* @remarks DR8-15 are currently not supported by AMD or Intel, so
333	* neither do we.
334	*/
335	uint64_t dr[8];
336	/** @todo eliminiate the rest. */
337	uint64_t cr3;
338	uint64_t au64Padding[7];
339	} CPUMHYPERCTX;
340	#ifndef VBOX_FOR_DTRACE_LIB
341	AssertCompileSizeAlignment(CPUMHYPERCTX, 64);
342	#endif
343	/** Pointer to the hypervisor context CPU state. */
344	typedef CPUMHYPERCTX *PCPUMHYPERCTX;
345
346
347	/**
348	* CPUM Data (part of VM)
349	*/
350	typedef struct CPUM
351	{
352	/** Use flags.
353	* These flags indicates which CPU features the host uses.
354	*/
355	uint32_t fHostUseFlags;
356
357	/** CR4 mask
358	* @todo obsolete? */
359	struct
360	{
361	uint32_t AndMask; /*< @todo Move these to the per-CPU structure and fix the switchers. Saves a register! /
362	uint32_t OrMask;
363	} CR4;
364
365	/** The (more) portable CPUID level. */
366	uint8_t u8PortableCpuIdLevel;
367	/** Indicates that a state restore is pending.
368	* This is used to verify load order dependencies (PGM). */
369	bool fPendingRestore;
370	/** Whether MTRR reads report valid memory types for memory regions. */
371	bool fMtrrRead;
372	/** Whether the guest's writes to MTRRs are implemented. */
373	bool fMtrrWrite;
374
375	/** XSAVE/XRTOR components we can expose to the guest mask. */
376	uint64_t fXStateGuestMask;
377	/** XSAVE/XRSTOR host mask. Only state components in this mask can be exposed
378	* to the guest. This is 0 if no XSAVE/XRSTOR bits can be exposed. */
379	uint64_t fXStateHostMask;
380
381	#if defined(RT_ARCH_X86) \|\| defined(RT_ARCH_AMD64)
382	/** The host MXCSR mask (determined at init). */
383	uint32_t fHostMxCsrMask;
384	#else
385	uint32_t u32UnusedOnNonX86;
386	#endif
387	uint8_t abPadding1[4];
388
389	/** Random value we store in the reserved RFLAGS bits we don't use ourselves so
390	* we can detect corruption. */
391	uint64_t fReservedRFlagsCookie;
392
393	/** Align to 64-byte boundary. */
394	uint8_t abPadding2[16];
395
396	/** Host CPU feature information.
397	* Externaly visible via the VM structure, aligned on 64-byte boundrary. */
398	CPUMFEATURES HostFeatures;
399	/** Guest CPU feature information.
400	* Externaly visible via that VM structure, aligned with HostFeatures. */
401	CPUMFEATURES GuestFeatures;
402	/** Guest CPU info. */
403	CPUMINFO GuestInfo;
404
405	/** The standard set of CpuId leaves. */
406	CPUMCPUID aGuestCpuIdPatmStd[6];
407	/** The extended set of CpuId leaves. */
408	CPUMCPUID aGuestCpuIdPatmExt[10];
409	/** The centaur set of CpuId leaves. */
410	CPUMCPUID aGuestCpuIdPatmCentaur[4];
411
412	/** @name MSR statistics.
413	* @{ */
414	STAMCOUNTER cMsrWrites;
415	STAMCOUNTER cMsrWritesToIgnoredBits;
416	STAMCOUNTER cMsrWritesRaiseGp;
417	STAMCOUNTER cMsrWritesUnknown;
418	STAMCOUNTER cMsrReads;
419	STAMCOUNTER cMsrReadsRaiseGp;
420	STAMCOUNTER cMsrReadsUnknown;
421	/** @} */
422	} CPUM;
423	#ifndef VBOX_FOR_DTRACE_LIB
424	AssertCompileMemberOffset(CPUM, HostFeatures, 64);
425	AssertCompileMemberOffset(CPUM, GuestFeatures, 112);
426	#endif
427	/** Pointer to the CPUM instance data residing in the shared VM structure. */
428	typedef CPUM *PCPUM;
429
430	/**
431	* CPUM Data (part of VMCPU)
432	*/
433	typedef struct CPUMCPU
434	{
435	/** Guest context.
436	* Aligned on a 64-byte boundary. */
437	CPUMCTX Guest;
438	/** Guest context - misc MSRs
439	* Aligned on a 64-byte boundary. */
440	CPUMCTXMSRS GuestMsrs;
441
442	/** Nested VMX: VMX-preemption timer. */
443	TMTIMERHANDLE hNestedVmxPreemptTimer;
444
445	/** Use flags.
446	* These flags indicates both what is to be used and what has been used. */
447	uint32_t fUseFlags;
448
449	/** Changed flags.
450	* These flags indicates to REM (and others) which important guest
451	* registers which has been changed since last time the flags were cleared.
452	* See the CPUM_CHANGED_* defines for what we keep track of.
453	*
454	* @todo Obsolete, but will probably be refactored so keep it for reference. */
455	uint32_t fChanged;
456
457	/** Temporary storage for the return code of the function called in the
458	* 32-64 switcher. */
459	uint32_t u32RetCode;
460
461	/** Whether the X86_CPUID_FEATURE_EDX_APIC and X86_CPUID_AMD_FEATURE_EDX_APIC
462	* (?) bits are visible or not. (The APIC is responsible for setting this
463	* when loading state, so we won't save it.) */
464	bool fCpuIdApicFeatureVisible;
465
466	/** Align the next member on a 64-byte boundary. */
467	uint8_t abPadding2[64 - 8 - 4*3 - 1];
468
469	/** Saved host context. Only valid while inside RC or HM contexts.
470	* Must be aligned on a 64-byte boundary. */
471	CPUMHOSTCTX Host;
472	/** Old hypervisor context, only used for combined DRx values now.
473	* Must be aligned on a 64-byte boundary. */
474	CPUMHYPERCTX Hyper;
475
476	#ifdef VBOX_WITH_CRASHDUMP_MAGIC
477	uint8_t aMagic[56];
478	uint64_t uMagic;
479	#endif
480	} CPUMCPU;
481	#ifndef VBOX_FOR_DTRACE_LIB
482	AssertCompileMemberAlignment(CPUMCPU, Host, 64);
483	#endif
484	/** Pointer to the CPUMCPU instance data residing in the shared VMCPU structure. */
485	typedef CPUMCPU *PCPUMCPU;
486
487	#ifndef VBOX_FOR_DTRACE_LIB
488	RT_C_DECLS_BEGIN
489
490	PCPUMCPUIDLEAF cpumCpuIdGetLeaf(PVM pVM, uint32_t uLeaf);
491	PCPUMCPUIDLEAF cpumCpuIdGetLeafEx(PVM pVM, uint32_t uLeaf, uint32_t uSubLeaf, bool *pfExactSubLeafHit);
492	PCPUMCPUIDLEAF cpumCpuIdGetLeafInt(PCPUMCPUIDLEAF paLeaves, uint32_t cLeaves, uint32_t uLeaf, uint32_t uSubLeaf);
493	PCPUMCPUIDLEAF cpumCpuIdEnsureSpace(PVM pVM, PCPUMCPUIDLEAF *ppaLeaves, uint32_t cLeaves);
494	# ifdef VBOX_STRICT
495	void cpumCpuIdAssertOrder(PCPUMCPUIDLEAF paLeaves, uint32_t cLeaves);
496	# endif
497	int cpumCpuIdExplodeFeaturesX86(PCCPUMCPUIDLEAF paLeaves, uint32_t cLeaves, PCCPUMMSRS pMsrs,
498	PCPUMFEATURES pFeatures);
499
500	# ifdef IN_RING3
501	int cpumR3DbgInit(PVM pVM);
502	int cpumR3InitCpuIdAndMsrs(PVM pVM, PCCPUMMSRS pHostMsrs);
503	void cpumR3InitVmxGuestFeaturesAndMsrs(PVM pVM, PCFGMNODE pCpumCfg, PCVMXMSRS pHostVmxMsrs,
504	PVMXMSRS pGuestVmxMsrs);
505	void cpumR3CpuIdRing3InitDone(PVM pVM);
506	void cpumR3SaveCpuId(PVM pVM, PSSMHANDLE pSSM);
507	int cpumR3LoadCpuId(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, PCCPUMMSRS pGuestMsrs);
508	int cpumR3LoadCpuIdPre32(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion);
509	DECLCALLBACK(void) cpumR3CpuIdInfo(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
510
511	int cpumR3DbGetCpuInfo(const char *pszName, PCPUMINFO pInfo);
512	int cpumR3MsrRangesInsert(PVM pVM, PCPUMMSRRANGE ppaMsrRanges, uint32_t pcMsrRanges, PCCPUMMSRRANGE pNewRange);
513	int cpumR3MsrReconcileWithCpuId(PVM pVM);
514	int cpumR3MsrApplyFudge(PVM pVM);
515	int cpumR3MsrRegStats(PVM pVM);
516	int cpumR3MsrStrictInitChecks(void);
517	PCPUMMSRRANGE cpumLookupMsrRange(PVM pVM, uint32_t idMsr);
518	# endif
519
520	# ifdef IN_RC
521	DECLASM(int) cpumHandleLazyFPUAsm(PCPUMCPU pCPUM);
522	# endif
523
524	# ifdef IN_RING0
525	DECLASM(int) cpumR0SaveHostRestoreGuestFPUState(PCPUMCPU pCPUM);
526	DECLASM(void) cpumR0SaveGuestRestoreHostFPUState(PCPUMCPU pCPUM);
527	# if ARCH_BITS == 32 && defined(VBOX_WITH_64_BITS_GUESTS)
528	DECLASM(void) cpumR0RestoreHostFPUState(PCPUMCPU pCPUM);
529	# endif
530	# endif
531
532	# if defined(IN_RC) \|\| defined(IN_RING0)
533	DECLASM(int) cpumRZSaveHostFPUState(PCPUMCPU pCPUM);
534	DECLASM(void) cpumRZSaveGuestFpuState(PCPUMCPU pCPUM, bool fLeaveFpuAccessible);
535	DECLASM(void) cpumRZSaveGuestSseRegisters(PCPUMCPU pCPUM);
536	DECLASM(void) cpumRZSaveGuestAvxRegisters(PCPUMCPU pCPUM);
537	# endif
538
539	RT_C_DECLS_END
540	#endif /* !VBOX_FOR_DTRACE_LIB */
541
542	/** @} */
543
544	#endif /* !VMM_INCLUDED_SRC_include_CPUMInternal_h */
545

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