HWACCMInternal.h@ 12805

Last change on this file since 12805 was 12805, checked in by vboxsync, 17 years ago
Reenabled real-mode emulation in VT-x again.
Property svn:eol-style set to `native` Property svn:keywords set to `Id`
File size: 19.4 KB

Line
1	/* $Id: HWACCMInternal.h 12805 2008-09-29 14:45:02Z vboxsync $ */
2	/** @file
3	* HWACCM - Internal header file.
4	*/
5
6	/*
7	* Copyright (C) 2006-2007 Sun Microsystems, Inc.
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*
17	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18	* Clara, CA 95054 USA or visit http://www.sun.com if you need
19	* additional information or have any questions.
20	*/
21
22	#ifndef ___HWACCMInternal_h
23	#define ___HWACCMInternal_h
24
25	#include <VBox/cdefs.h>
26	#include <VBox/types.h>
27	#include <VBox/em.h>
28	#include <VBox/stam.h>
29	#include <VBox/dis.h>
30	#include <VBox/hwaccm.h>
31	#include <VBox/pgm.h>
32	#include <VBox/cpum.h>
33	#include <iprt/memobj.h>
34	#include <iprt/cpuset.h>
35	#include <iprt/mp.h>
36
37	#if HC_ARCH_BITS == 64
38	/* Enable 64 bits guest support. */
39	# define VBOX_ENABLE_64_BITS_GUESTS
40	#endif
41
42	#define HWACCM_VMX_EMULATE_REALMODE
43
44	__BEGIN_DECLS
45
46
47	/** @defgroup grp_hwaccm_int Internal
48	* @ingroup grp_hwaccm
49	* @internal
50	* @{
51	*/
52
53
54	/**
55	* Converts a HWACCM pointer into a VM pointer.
56	* @returns Pointer to the VM structure the EM is part of.
57	* @param pHWACCM Pointer to HWACCM instance data.
58	*/
59	#define HWACCM2VM(pHWACCM) ( (PVM)((char*)pHWACCM - pHWACCM->offVM) )
60
61	/** Maximum number of exit reason statistics counters. */
62	#define MAX_EXITREASON_STAT 0x100
63	#define MASK_EXITREASON_STAT 0xff
64
65	/** @name Changed flags
66	* These flags are used to keep track of which important registers that
67	* have been changed since last they were reset.
68	* @{
69	*/
70	#define HWACCM_CHANGED_GUEST_FPU RT_BIT(0)
71	#define HWACCM_CHANGED_GUEST_CR0 RT_BIT(1)
72	#define HWACCM_CHANGED_GUEST_CR3 RT_BIT(2)
73	#define HWACCM_CHANGED_GUEST_CR4 RT_BIT(3)
74	#define HWACCM_CHANGED_GUEST_GDTR RT_BIT(4)
75	#define HWACCM_CHANGED_GUEST_IDTR RT_BIT(5)
76	#define HWACCM_CHANGED_GUEST_LDTR RT_BIT(6)
77	#define HWACCM_CHANGED_GUEST_TR RT_BIT(7)
78	#define HWACCM_CHANGED_GUEST_SYSENTER_MSR RT_BIT(8)
79	#define HWACCM_CHANGED_GUEST_SEGMENT_REGS RT_BIT(9)
80	#define HWACCM_CHANGED_GUEST_DEBUG RT_BIT(10)
81	#define HWACCM_CHANGED_HOST_CONTEXT RT_BIT(11)
82
83	#define HWACCM_CHANGED_ALL ( HWACCM_CHANGED_GUEST_SEGMENT_REGS \
84	\| HWACCM_CHANGED_GUEST_CR0 \
85	\| HWACCM_CHANGED_GUEST_CR3 \
86	\| HWACCM_CHANGED_GUEST_CR4 \
87	\| HWACCM_CHANGED_GUEST_GDTR \
88	\| HWACCM_CHANGED_GUEST_IDTR \
89	\| HWACCM_CHANGED_GUEST_LDTR \
90	\| HWACCM_CHANGED_GUEST_TR \
91	\| HWACCM_CHANGED_GUEST_SYSENTER_MSR \
92	\| HWACCM_CHANGED_GUEST_FPU \
93	\| HWACCM_CHANGED_GUEST_DEBUG \
94	\| HWACCM_CHANGED_HOST_CONTEXT)
95
96	#define HWACCM_CHANGED_ALL_GUEST ( HWACCM_CHANGED_GUEST_SEGMENT_REGS \
97	\| HWACCM_CHANGED_GUEST_CR0 \
98	\| HWACCM_CHANGED_GUEST_CR3 \
99	\| HWACCM_CHANGED_GUEST_CR4 \
100	\| HWACCM_CHANGED_GUEST_GDTR \
101	\| HWACCM_CHANGED_GUEST_IDTR \
102	\| HWACCM_CHANGED_GUEST_LDTR \
103	\| HWACCM_CHANGED_GUEST_TR \
104	\| HWACCM_CHANGED_GUEST_SYSENTER_MSR \
105	\| HWACCM_CHANGED_GUEST_DEBUG \
106	\| HWACCM_CHANGED_GUEST_FPU)
107
108	/** @} */
109
110	/** @name Intercepted traps
111	* Traps that need to be intercepted so we can correctly dispatch them to the guest if required.
112	* Currently #NM and #PF only
113	*/
114	#ifdef VBOX_STRICT
115	#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)
116	#define HWACCM_SVM_TRAP_MASK HWACCM_VMX_TRAP_MASK
117	#else
118	#define HWACCM_VMX_TRAP_MASK RT_BIT(X86_XCPT_NM) \| RT_BIT(X86_XCPT_PF)
119	#define HWACCM_SVM_TRAP_MASK RT_BIT(X86_XCPT_NM) \| RT_BIT(X86_XCPT_PF)
120	#endif
121	/** @} */
122
123
124	/** Maxium resume loops allowed in ring 0 (safety precaution) */
125	#define HWACCM_MAX_RESUME_LOOPS 1024
126
127	/** Size of the TSS structure + 2 pages for the IO bitmap + end byte. */
128	#define HWACCM_VTX_TSS_SIZE (sizeof(VBOXTSS) + 2*PAGE_SIZE + 1)
129
130	/** HWACCM SSM version
131	*/
132	#define HWACCM_SSM_VERSION 3
133
134	/* Per-cpu information. */
135	typedef struct
136	{
137	RTCPUID idCpu;
138
139	RTR0MEMOBJ pMemObj;
140	/* Current ASID (AMD-V only) */
141	uint32_t uCurrentASID;
142	/* TLB flush count */
143	uint32_t cTLBFlushes;
144
145	/* Set the first time a cpu is used to make sure we start with a clean TLB. */
146	bool fFlushTLB;
147
148	bool fConfigured;
149	} HWACCM_CPUINFO;
150	typedef HWACCM_CPUINFO *PHWACCM_CPUINFO;
151
152	/* VT-x capability qword. */
153	typedef union
154	{
155	struct
156	{
157	uint32_t disallowed0;
158	uint32_t allowed1;
159	} n;
160	uint64_t u;
161	} VMX_CAPABILITY;
162
163	/**
164	* HWACCM VM Instance data.
165	* Changes to this must checked against the padding of the cfgm union in VM!
166	*/
167	typedef struct HWACCM
168	{
169	/** Offset to the VM structure.
170	* See HWACCM2VM(). */
171	RTUINT offVM;
172
173	/** Set when we've initialized VMX or SVM. */
174	bool fInitialized;
175	/** Set when we're using VMX/SVN at that moment. */
176	bool fActive;
177
178	/** Set when hardware acceleration is allowed. */
179	bool fAllowed;
180
181	/** Set if nested paging is enabled. */
182	bool fNestedPaging;
183
184	/** Set if nested paging is allowed. */
185	bool fAllowNestedPaging;
186
187	/** Explicit alignment padding to make 32-bit gcc align u64RegisterMask
188	* naturally. */
189	bool padding[3+4];
190
191	/** HWACCM_CHANGED_* flags. */
192	uint32_t fContextUseFlags;
193
194	/** Old style FPU reporting trap mask override performed (optimization) */
195	uint32_t fFPUOldStyleOverride;
196
197	/** And mask for copying register contents. */
198	uint64_t u64RegisterMask;
199	struct
200	{
201	/** Set by the ring-0 driver to indicate VMX is supported by the CPU. */
202	bool fSupported;
203
204	/** Set when we've enabled VMX. */
205	bool fEnabled;
206
207	/** Set if we can use VMXResume to execute guest code. */
208	bool fResumeVM;
209
210	/** R0 memory object for the VM control structure (VMCS). */
211	RTR0MEMOBJ pMemObjVMCS;
212	/** Physical address of the VM control structure (VMCS). */
213	RTHCPHYS pVMCSPhys;
214	/** Virtual address of the VM control structure (VMCS). */
215	R0PTRTYPE(void *) pVMCS;
216
217	/** Virtual address of the TSS page used for real mode emulation. */
218	R3PTRTYPE(PVBOXTSS) pRealModeTSS;
219	#if HC_ARCH_BITS == 32
220	uint32_t padding2; /*< explicit alignment for 32-bit gcc /
221	#endif
222
223	/** R0 memory object for the virtual APIC mmio cache. */
224	RTR0MEMOBJ pMemObjAPIC;
225	/** Physical address of the virtual APIC mmio cache. */
226	RTHCPHYS pAPICPhys;
227	/** Virtual address of the virtual APIC mmio cache. */
228	R0PTRTYPE(uint8_t *) pAPIC;
229
230	/** R0 memory object for the MSR bitmap (1 page). */
231	RTR0MEMOBJ pMemObjMSRBitmap;
232	/** Physical address of the MSR bitmap (1 page). */
233	RTHCPHYS pMSRBitmapPhys;
234	/** Virtual address of the MSR bitmap (1 page). */
235	R0PTRTYPE(uint8_t *) pMSRBitmap;
236
237	/** R0 memory object for the MSR entry load page (guest MSRs). */
238	RTR0MEMOBJ pMemObjMSREntryLoad;
239	/** Physical address of the MSR entry load page (guest MSRs). */
240	RTHCPHYS pMSREntryLoadPhys;
241	/** Virtual address of the MSR entry load page (guest MSRs). */
242	R0PTRTYPE(uint8_t *) pMSREntryLoad;
243
244	/** R0 memory object for the MSR exit store page (guest MSRs). */
245	RTR0MEMOBJ pMemObjMSRExitStore;
246	/** Physical address of the MSR exit store page (guest MSRs). */
247	RTHCPHYS pMSRExitStorePhys;
248	/** Virtual address of the MSR exit store page (guest MSRs). */
249	R0PTRTYPE(uint8_t *) pMSRExitStore;
250
251	/** R0 memory object for the MSR exit load page (host MSRs). */
252	RTR0MEMOBJ pMemObjMSRExitLoad;
253	/** Physical address of the MSR exit load page (host MSRs). */
254	RTHCPHYS pMSRExitLoadPhys;
255	/** Virtual address of the MSR exit load page (host MSRs). */
256	R0PTRTYPE(uint8_t *) pMSRExitLoad;
257
258	/** Ring 0 handlers for VT-x. */
259	DECLR0CALLBACKMEMBER(int, pfnStartVM,(RTHCUINT fResume, PCPUMCTX pCtx));
260
261	/** Host CR4 value (set by ring-0 VMX init) */
262	uint64_t hostCR4;
263
264	/** Current VMX_VMCS_CTRL_PROC_EXEC_CONTROLS. */
265	uint64_t proc_ctls;
266
267	/** Current CR0 mask. */
268	uint64_t cr0_mask;
269	/** Current CR4 mask. */
270	uint64_t cr4_mask;
271
272	/** VMX MSR values */
273	struct
274	{
275	uint64_t feature_ctrl;
276	uint64_t vmx_basic_info;
277	VMX_CAPABILITY vmx_pin_ctls;
278	VMX_CAPABILITY vmx_proc_ctls;
279	VMX_CAPABILITY vmx_proc_ctls2;
280	VMX_CAPABILITY vmx_exit;
281	VMX_CAPABILITY vmx_entry;
282	uint64_t vmx_misc;
283	uint64_t vmx_cr0_fixed0;
284	uint64_t vmx_cr0_fixed1;
285	uint64_t vmx_cr4_fixed0;
286	uint64_t vmx_cr4_fixed1;
287	uint64_t vmx_vmcs_enum;
288	uint64_t vmx_eptcaps;
289	} msr;
290
291	/* Last instruction error */
292	uint32_t ulLastInstrError;
293
294	/** Current trap mask. */
295	uint32_t u32TrapMask;
296
297	/** The last known guest paging mode. */
298	PGMMODE enmCurrGuestMode;
299
300	#if HC_ARCH_BITS == 32
301	uint32_t padding3; /*< explicit alignment for 32-bit gcc /
302	#endif
303
304	/** Real-mode emulation state. */
305	struct
306	{
307	struct
308	{
309	uint32_t fPending;
310	uint32_t padding4;
311	uint64_t intInfo;
312	} Event;
313
314	CPUMSELREGHID dsHid;
315	CPUMSELREGHID esHid;
316	CPUMSELREGHID fsHid;
317	CPUMSELREGHID gsHid;
318	CPUMSELREGHID ssHid;
319	RTSEL ds;
320	RTSEL es;
321	RTSEL fs;
322	RTSEL gs;
323	RTSEL ss;
324	uint32_t eip;
325	RTSEL padding4[3];
326	} RealMode;
327
328	struct
329	{
330	uint64_t u64VMCSPhys;
331	uint32_t ulVMCSRevision;
332	} lasterror;
333	} vmx;
334
335	struct
336	{
337	/** Set by the ring-0 driver to indicate SVM is supported by the CPU. */
338	bool fSupported;
339	/** Set when we've enabled SVM. */
340	bool fEnabled;
341	/** Set if we don't have to flush the TLB on VM entry. */
342	bool fResumeVM;
343	/** Set if erratum 170 affects the AMD cpu. */
344	bool fAlwaysFlushTLB;
345	/** Set if we need to flush the TLB during the world switch. */
346	bool fForceTLBFlush;
347
348	/* Id of the last cpu we were executing code on (NIL_RTCPUID for the first time) */
349	RTCPUID idLastCpu;
350
351	/* TLB flush count */
352	uint32_t cTLBFlushes;
353
354	/* Current ASID in use by the VM */
355	uint32_t uCurrentASID;
356
357	/** R0 memory object for the VM control block (VMCB). */
358	RTR0MEMOBJ pMemObjVMCB;
359	/** Physical address of the VM control block (VMCB). */
360	RTHCPHYS pVMCBPhys;
361	/** Virtual address of the VM control block (VMCB). */
362	R0PTRTYPE(void *) pVMCB;
363
364	/** R0 memory object for the host VM control block (VMCB). */
365	RTR0MEMOBJ pMemObjVMCBHost;
366	/** Physical address of the host VM control block (VMCB). */
367	RTHCPHYS pVMCBHostPhys;
368	/** Virtual address of the host VM control block (VMCB). */
369	R0PTRTYPE(void *) pVMCBHost;
370
371	/** R0 memory object for the IO bitmap (12kb). */
372	RTR0MEMOBJ pMemObjIOBitmap;
373	/** Physical address of the IO bitmap (12kb). */
374	RTHCPHYS pIOBitmapPhys;
375	/** Virtual address of the IO bitmap. */
376	R0PTRTYPE(void *) pIOBitmap;
377
378	/** R0 memory object for the MSR bitmap (8kb). */
379	RTR0MEMOBJ pMemObjMSRBitmap;
380	/** Physical address of the MSR bitmap (8kb). */
381	RTHCPHYS pMSRBitmapPhys;
382	/** Virtual address of the MSR bitmap. */
383	R0PTRTYPE(void *) pMSRBitmap;
384
385	/** Ring 0 handlers for VT-x. */
386	DECLR0CALLBACKMEMBER(int, pfnVMRun,(RTHCPHYS pVMCBHostPhys, RTHCPHYS pVMCBPhys, PCPUMCTX pCtx));
387
388	/** SVM revision. */
389	uint32_t u32Rev;
390
391	/** Maximum ASID allowed. */
392	uint32_t u32MaxASID;
393
394	/** SVM feature bits from cpuid 0x8000000a */
395	uint32_t u32Features;
396	} svm;
397
398	struct
399	{
400	uint32_t u32AMDFeatureECX;
401	uint32_t u32AMDFeatureEDX;
402	} cpuid;
403
404	/** Event injection state. */
405	struct
406	{
407	uint32_t fPending;
408	uint32_t errCode;
409	uint64_t intInfo;
410	} Event;
411
412	/** Saved error from detection */
413	int32_t lLastError;
414
415	/** HWACCMR0Init was run */
416	bool fHWACCMR0Init;
417
418	/** Currenty shadow paging mode. */
419	PGMMODE enmShadowMode;
420
421	/** Explicit alignment padding of StatEntry (32-bit g++ again). */
422	int32_t padding2;
423
424	#ifdef VBOX_STRICT
425	/** The CPU ID of the CPU currently owning the VMCS. Set in
426	* HWACCMR0Enter and cleared in HWACCMR0Leave. */
427	RTCPUID idEnteredCpu;
428	# if HC_ARCH_BITS == 32
429	RTCPUID Alignment0;
430	# endif
431	#endif
432
433	STAMPROFILEADV StatEntry;
434	STAMPROFILEADV StatExit;
435	STAMPROFILEADV StatInGC;
436
437	STAMCOUNTER StatIntInject;
438
439	STAMCOUNTER StatExitShadowNM;
440	STAMCOUNTER StatExitGuestNM;
441	STAMCOUNTER StatExitShadowPF;
442	STAMCOUNTER StatExitGuestPF;
443	STAMCOUNTER StatExitGuestUD;
444	STAMCOUNTER StatExitGuestSS;
445	STAMCOUNTER StatExitGuestNP;
446	STAMCOUNTER StatExitGuestGP;
447	STAMCOUNTER StatExitGuestDE;
448	STAMCOUNTER StatExitGuestDB;
449	STAMCOUNTER StatExitGuestMF;
450	STAMCOUNTER StatExitInvpg;
451	STAMCOUNTER StatExitInvd;
452	STAMCOUNTER StatExitCpuid;
453	STAMCOUNTER StatExitRdtsc;
454	STAMCOUNTER StatExitCRxWrite;
455	STAMCOUNTER StatExitCRxRead;
456	STAMCOUNTER StatExitDRxWrite;
457	STAMCOUNTER StatExitDRxRead;
458	STAMCOUNTER StatExitCLTS;
459	STAMCOUNTER StatExitLMSW;
460	STAMCOUNTER StatExitIOWrite;
461	STAMCOUNTER StatExitIORead;
462	STAMCOUNTER StatExitIOStringWrite;
463	STAMCOUNTER StatExitIOStringRead;
464	STAMCOUNTER StatExitIrqWindow;
465	STAMCOUNTER StatExitMaxResume;
466	STAMCOUNTER StatIntReinject;
467	STAMCOUNTER StatPendingHostIrq;
468
469	STAMCOUNTER StatFlushPageManual;
470	STAMCOUNTER StatFlushPhysPageManual;
471	STAMCOUNTER StatFlushTLBManual;
472	STAMCOUNTER StatFlushPageInvlpg;
473	STAMCOUNTER StatFlushTLBWorldSwitch;
474	STAMCOUNTER StatNoFlushTLBWorldSwitch;
475	STAMCOUNTER StatFlushTLBCRxChange;
476	STAMCOUNTER StatFlushASID;
477
478	STAMCOUNTER StatSwitchGuestIrq;
479	STAMCOUNTER StatSwitchToR3;
480
481	STAMCOUNTER StatTSCOffset;
482	STAMCOUNTER StatTSCIntercept;
483
484	STAMCOUNTER StatExitReasonNPF;
485	STAMCOUNTER StatDRxArmed;
486	STAMCOUNTER StatDRxContextSwitch;
487	STAMCOUNTER StatDRxIOCheck;
488
489
490	R3PTRTYPE(PSTAMCOUNTER) paStatExitReason;
491	R0PTRTYPE(PSTAMCOUNTER) paStatExitReasonR0;
492	} HWACCM;
493	/** Pointer to HWACCM VM instance data. */
494	typedef HWACCM *PHWACCM;
495
496	#ifdef IN_RING0
497
498	HWACCMR0DECL(PHWACCM_CPUINFO) HWACCMR0GetCurrentCpu();
499
500	#ifdef VBOX_STRICT
501	HWACCMR0DECL(void) HWACCMDumpRegs(PVM pVM, PCPUMCTX pCtx);
502	HWACCMR0DECL(void) HWACCMR0DumpDescriptor(PX86DESCHC Desc, RTSEL Sel, const char *pszMsg);
503	#else
504	#define HWACCMDumpRegs(a, b) do { } while (0)
505	#define HWACCMR0DumpDescriptor(a, b, c) do { } while (0)
506	#endif
507
508	/* Dummy callback handlers. */
509	HWACCMR0DECL(int) HWACCMR0DummyEnter(PVM pVM, PHWACCM_CPUINFO pCpu);
510	HWACCMR0DECL(int) HWACCMR0DummyLeave(PVM pVM, CPUMCTX *pCtx);
511	HWACCMR0DECL(int) HWACCMR0DummyEnableCpu(PHWACCM_CPUINFO pCpu, PVM pVM, void *pvPageCpu, RTHCPHYS pPageCpuPhys);
512	HWACCMR0DECL(int) HWACCMR0DummyDisableCpu(PHWACCM_CPUINFO pCpu, void *pvPageCpu, RTHCPHYS pPageCpuPhys);
513	HWACCMR0DECL(int) HWACCMR0DummyInitVM(PVM pVM);
514	HWACCMR0DECL(int) HWACCMR0DummyTermVM(PVM pVM);
515	HWACCMR0DECL(int) HWACCMR0DummySetupVM(PVM pVM);
516	HWACCMR0DECL(int) HWACCMR0DummyRunGuestCode(PVM pVM, CPUMCTX *pCtx);
517	HWACCMR0DECL(int) HWACCMR0DummySaveHostState(PVM pVM);
518	HWACCMR0DECL(int) HWACCMR0DummyLoadGuestState(PVM pVM, CPUMCTX *pCtx);
519
520	#endif /* IN_RING0 */
521
522	/** @} */
523
524	__END_DECLS
525
526	#endif
527

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source: vbox/trunk/src/VBox/VMM/HWACCMInternal.h@ 12805

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