VirtualBox

source: vbox/trunk/include/VBox/vmm/hm.h@ 53370

Last change on this file since 53370 was 52419, checked in by vboxsync, 10 years ago

VMM: Fix restoring 32-bit guest FPU state on 64-bit capable VMs.
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File size: 10.2 KB
Line 
1/** @file
2 * HM - Intel/AMD VM Hardware Assisted Virtualization Manager (VMM)
3 */
4
5/*
6 * Copyright (C) 2006-2014 Oracle Corporation
7 *
8 * This file is part of VirtualBox Open Source Edition (OSE), as
9 * available from http://www.virtualbox.org. This file is free software;
10 * you can redistribute it and/or modify it under the terms of the GNU
11 * General Public License (GPL) as published by the Free Software
12 * Foundation, in version 2 as it comes in the "COPYING" file of the
13 * VirtualBox OSE distribution. VirtualBox OSE is distributed in the
14 * hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
15 *
16 * The contents of this file may alternatively be used under the terms
17 * of the Common Development and Distribution License Version 1.0
18 * (CDDL) only, as it comes in the "COPYING.CDDL" file of the
19 * VirtualBox OSE distribution, in which case the provisions of the
20 * CDDL are applicable instead of those of the GPL.
21 *
22 * You may elect to license modified versions of this file under the
23 * terms and conditions of either the GPL or the CDDL or both.
24 */
25
26#ifndef ___VBox_vmm_hm_h
27#define ___VBox_vmm_hm_h
28
29#include <VBox/vmm/pgm.h>
30#include <VBox/vmm/cpum.h>
31#include <VBox/vmm/vmm.h>
32#include <iprt/mp.h>
33
34
35/** @defgroup grp_hm The VM Hardware Manager API
36 * @{
37 */
38
39RT_C_DECLS_BEGIN
40
41/**
42 * Checks whether HM (VT-x/AMD-V) is being used by this VM.
43 *
44 * @retval @c true if used.
45 * @retval @c false if software virtualization (raw-mode) is used.
46 *
47 * @param a_pVM The cross context VM structure.
48 * @sa HMIsEnabledNotMacro, HMR3IsEnabled
49 * @internal
50 */
51#if defined(VBOX_STRICT) && defined(IN_RING3)
52# define HMIsEnabled(a_pVM) HMIsEnabledNotMacro(a_pVM)
53#else
54# define HMIsEnabled(a_pVM) ((a_pVM)->fHMEnabled)
55#endif
56
57/**
58 * Checks whether raw-mode context is required for any purpose.
59 *
60 * @retval @c true if required either by raw-mode itself or by HM for doing
61 * switching the cpu to 64-bit mode.
62 * @retval @c false if not required.
63 *
64 * @param a_pVM The cross context VM structure.
65 * @internal
66 */
67#if HC_ARCH_BITS == 64
68# define HMIsRawModeCtxNeeded(a_pVM) (!HMIsEnabled(a_pVM))
69#else
70# define HMIsRawModeCtxNeeded(a_pVM) (!HMIsEnabled(a_pVM) || (a_pVM)->fHMNeedRawModeCtx)
71#endif
72
73 /**
74 * Check if the current CPU state is valid for emulating IO blocks in the recompiler
75 *
76 * @returns boolean
77 * @param a_pVCpu Pointer to the shared virtual CPU structure.
78 * @internal
79 */
80#define HMCanEmulateIoBlock(a_pVCpu) (!CPUMIsGuestInPagedProtectedMode(a_pVCpu))
81
82 /**
83 * Check if the current CPU state is valid for emulating IO blocks in the recompiler
84 *
85 * @returns boolean
86 * @param a_pCtx Pointer to the CPU context (within PVM).
87 * @internal
88 */
89#define HMCanEmulateIoBlockEx(a_pCtx) (!CPUMIsGuestInPagedProtectedModeEx(a_pCtx))
90
91/**
92 * Checks whether we're in the special hardware virtualization context.
93 * @returns true / false.
94 * @param a_pVCpu The caller's cross context virtual CPU structure.
95 * @thread EMT
96 */
97#ifdef IN_RING0
98# define HMIsInHwVirtCtx(a_pVCpu) (VMCPU_GET_STATE(a_pVCpu) == VMCPUSTATE_STARTED_HM)
99#else
100# define HMIsInHwVirtCtx(a_pVCpu) (false)
101#endif
102
103/**
104 * Checks whether we're in the special hardware virtualization context and we
105 * cannot perform long jump without guru meditating and possibly messing up the
106 * host and/or guest state.
107 *
108 * This is after we've turned interrupts off and such.
109 *
110 * @returns true / false.
111 * @param a_pVCpu The caller's cross context virtual CPU structure.
112 * @thread EMT
113 */
114#ifdef IN_RING0
115# define HMIsInHwVirtNoLongJmpCtx(a_pVCpu) (VMCPU_GET_STATE(a_pVCpu) == VMCPUSTATE_STARTED_EXEC)
116#else
117# define HMIsInHwVirtNoLongJmpCtx(a_pVCpu) (false)
118#endif
119
120/**
121 * 64-bit raw-mode (intermediate memory context) operations.
122 *
123 * These are special hypervisor eip values used when running 64-bit guests on
124 * 32-bit hosts. Each operation corresponds to a routine.
125 *
126 * @note Duplicated in the assembly code!
127 */
128typedef enum HM64ON32OP
129{
130 HM64ON32OP_INVALID = 0,
131 HM64ON32OP_VMXRCStartVM64,
132 HM64ON32OP_SVMRCVMRun64,
133 HM64ON32OP_HMRCSaveGuestFPU64,
134 HM64ON32OP_HMRCSaveGuestDebug64,
135 HM64ON32OP_HMRCTestSwitcher64,
136 HM64ON32OP_END,
137 HM64ON32OP_32BIT_HACK = 0x7fffffff
138} HM64ON32OP;
139
140VMMDECL(bool) HMIsEnabledNotMacro(PVM pVM);
141VMM_INT_DECL(int) HMInvalidatePage(PVMCPU pVCpu, RTGCPTR GCVirt);
142VMM_INT_DECL(bool) HMHasPendingIrq(PVM pVM);
143VMM_INT_DECL(PX86PDPE) HMGetPaePdpes(PVMCPU pVCpu);
144VMM_INT_DECL(int) HMAmdIsSubjectToErratum170(uint32_t *pu32Family, uint32_t *pu32Model, uint32_t *pu32Stepping);
145VMM_INT_DECL(bool) HMSetSingleInstruction(PVMCPU pVCpu, bool fEnable);
146VMM_INT_DECL(int) HMPatchHypercall(PVM pVM, void *pvBuf, size_t cbBuf, size_t *pcbWritten);
147
148#ifndef IN_RC
149VMM_INT_DECL(int) HMFlushTLB(PVMCPU pVCpu);
150VMM_INT_DECL(int) HMFlushTLBOnAllVCpus(PVM pVM);
151VMM_INT_DECL(int) HMInvalidatePageOnAllVCpus(PVM pVM, RTGCPTR GCVirt);
152VMM_INT_DECL(int) HMInvalidatePhysPage(PVM pVM, RTGCPHYS GCPhys);
153VMM_INT_DECL(bool) HMIsNestedPagingActive(PVM pVM);
154VMM_INT_DECL(bool) HMIsLongModeAllowed(PVM pVM);
155VMM_INT_DECL(bool) HMAreMsrBitmapsAvailable(PVM pVM);
156VMM_INT_DECL(PGMMODE) HMGetShwPagingMode(PVM pVM);
157#else /* Nops in RC: */
158# define HMFlushTLB(pVCpu) do { } while (0)
159# define HMIsNestedPagingActive(pVM) false
160# define HMIsLongModeAllowed(pVM) false
161# define HMAreMsrBitmapsAvailable(pVM) false
162# define HMFlushTLBOnAllVCpus(pVM) do { } while (0)
163#endif
164
165#ifdef IN_RING0
166/** @defgroup grp_hm_r0 The VM Hardware Manager API
167 * @ingroup grp_hm
168 * @{
169 */
170VMMR0_INT_DECL(int) HMR0Init(void);
171VMMR0_INT_DECL(int) HMR0Term(void);
172VMMR0_INT_DECL(int) HMR0InitVM(PVM pVM);
173VMMR0_INT_DECL(int) HMR0TermVM(PVM pVM);
174VMMR0_INT_DECL(int) HMR0EnableAllCpus(PVM pVM);
175VMMR0_INT_DECL(int) HMR0EnterSwitcher(PVM pVM, VMMSWITCHER enmSwitcher, bool *pfVTxDisabled);
176VMMR0_INT_DECL(void) HMR0LeaveSwitcher(PVM pVM, bool fVTxDisabled);
177
178VMMR0_INT_DECL(void) HMR0SavePendingIOPortWrite(PVMCPU pVCpu, RTGCPTR GCPtrRip, RTGCPTR GCPtrRipNext,
179 unsigned uPort, unsigned uAndVal, unsigned cbSize);
180VMMR0_INT_DECL(void) HMR0SavePendingIOPortRead(PVMCPU pVCpu, RTGCPTR GCPtrRip, RTGCPTR GCPtrRipNext,
181 unsigned uPort, unsigned uAndVal, unsigned cbSize);
182
183/** @} */
184#endif /* IN_RING0 */
185
186
187#ifdef IN_RING3
188/** @defgroup grp_hm_r3 The VM Hardware Manager API
189 * @ingroup grp_hm
190 * @{
191 */
192VMMR3DECL(bool) HMR3IsEnabled(PUVM pUVM);
193VMMR3DECL(bool) HMR3IsNestedPagingActive(PUVM pUVM);
194VMMR3DECL(bool) HMR3IsVpidActive(PUVM pUVM);
195VMMR3DECL(bool) HMR3IsUXActive(PUVM pUVM);
196VMMR3DECL(bool) HMR3IsSvmEnabled(PUVM pUVM);
197VMMR3DECL(bool) HMR3IsVmxEnabled(PUVM pUVM);
198
199VMMR3_INT_DECL(bool) HMR3IsEventPending(PVMCPU pVCpu);
200VMMR3_INT_DECL(int) HMR3Init(PVM pVM);
201VMMR3_INT_DECL(int) HMR3InitCompleted(PVM pVM, VMINITCOMPLETED enmWhat);
202VMMR3_INT_DECL(void) HMR3Relocate(PVM pVM);
203VMMR3_INT_DECL(int) HMR3Term(PVM pVM);
204VMMR3_INT_DECL(void) HMR3Reset(PVM pVM);
205VMMR3_INT_DECL(void) HMR3ResetCpu(PVMCPU pVCpu);
206VMMR3_INT_DECL(void) HMR3CheckError(PVM pVM, int iStatusCode);
207VMMR3DECL(bool) HMR3CanExecuteGuest(PVM pVM, PCPUMCTX pCtx);
208VMMR3_INT_DECL(void) HMR3NotifyScheduled(PVMCPU pVCpu);
209VMMR3_INT_DECL(void) HMR3NotifyEmulated(PVMCPU pVCpu);
210VMMR3_INT_DECL(bool) HMR3IsActive(PVMCPU pVCpu);
211VMMR3_INT_DECL(void) HMR3PagingModeChanged(PVM pVM, PVMCPU pVCpu, PGMMODE enmShadowMode, PGMMODE enmGuestMode);
212VMMR3_INT_DECL(int) HMR3EmulateIoBlock(PVM pVM, PCPUMCTX pCtx);
213VMMR3_INT_DECL(VBOXSTRICTRC) HMR3RestartPendingIOInstr(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
214VMMR3_INT_DECL(int) HMR3EnablePatching(PVM pVM, RTGCPTR pPatchMem, unsigned cbPatchMem);
215VMMR3_INT_DECL(int) HMR3DisablePatching(PVM pVM, RTGCPTR pPatchMem, unsigned cbPatchMem);
216VMMR3_INT_DECL(int) HMR3PatchTprInstr(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
217VMMR3_INT_DECL(bool) HMR3IsRescheduleRequired(PVM pVM, PCPUMCTX pCtx);
218VMMR3_INT_DECL(bool) HMR3IsVmxPreemptionTimerUsed(PVM pVM);
219
220/** @} */
221#endif /* IN_RING3 */
222
223#ifdef IN_RING0
224/** @addtogroup grp_hm_r0
225 * @{
226 */
227/** Disables preemption if required. */
228# define HM_DISABLE_PREEMPT_IF_NEEDED() \
229 RTTHREADPREEMPTSTATE PreemptStateInternal = RTTHREADPREEMPTSTATE_INITIALIZER; \
230 bool fPreemptDisabledInternal = false; \
231 if (RTThreadPreemptIsEnabled(NIL_RTTHREAD)) \
232 { \
233 Assert(VMMR0ThreadCtxHooksAreRegistered(pVCpu)); \
234 RTThreadPreemptDisable(&PreemptStateInternal); \
235 fPreemptDisabledInternal = true; \
236 }
237
238/** Restores preemption if previously disabled by HM_DISABLE_PREEMPT(). */
239# define HM_RESTORE_PREEMPT_IF_NEEDED() \
240 do \
241 { \
242 if (fPreemptDisabledInternal) \
243 RTThreadPreemptRestore(&PreemptStateInternal); \
244 } while (0)
245
246VMMR0_INT_DECL(int) HMR0SetupVM(PVM pVM);
247VMMR0_INT_DECL(int) HMR0RunGuestCode(PVM pVM, PVMCPU pVCpu);
248VMMR0_INT_DECL(int) HMR0Enter(PVM pVM, PVMCPU pVCpu);
249VMMR0_INT_DECL(int) HMR0EnterCpu(PVMCPU pVCpu);
250VMMR0_INT_DECL(int) HMR0LeaveCpu(PVMCPU pVCpu);
251VMMR0_INT_DECL(void) HMR0ThreadCtxCallback(RTTHREADCTXEVENT enmEvent, void *pvUser);
252VMMR0_INT_DECL(bool) HMR0SuspendPending(void);
253
254# if HC_ARCH_BITS == 32 && defined(VBOX_WITH_64_BITS_GUESTS)
255VMMR0_INT_DECL(int) HMR0SaveFPUState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
256VMMR0_INT_DECL(int) HMR0SaveDebugState(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx);
257VMMR0_INT_DECL(int) HMR0TestSwitcher3264(PVM pVM);
258# endif
259
260/** @} */
261#endif /* IN_RING0 */
262
263
264/** @} */
265RT_C_DECLS_END
266
267
268#endif
269
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