vm.h@ 58283

Last change on this file since 58283 was 58283, checked in by vboxsync, 9 years ago
VMM/GIM: Implemented Hyper-V SINT2 and SIMP faking for making Windows 10 32-bit guests happy.
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1	/** @file
2	* VM - The Virtual Machine, data.
3	*/
4
5	/*
6	* Copyright (C) 2006-2015 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_vm_h
27	#define ___VBox_vmm_vm_h
28
29	#ifndef VBOX_FOR_DTRACE_LIB
30	# include <VBox/types.h>
31	# include <VBox/vmm/cpum.h>
32	# include <VBox/vmm/stam.h>
33	# include <VBox/vmm/vmapi.h>
34	# include <VBox/vmm/vmm.h>
35	# include <VBox/sup.h>
36	#else
37	# pragma D depends_on library vbox-types.d
38	# pragma D depends_on library CPUMInternal.d
39	# define ___CPUMInternal_h
40	#endif
41
42
43
44	/** @defgroup grp_vm The Virtual Machine
45	* @ingroup grp_vmm
46	* @{
47	*/
48
49	/**
50	* The state of a Virtual CPU.
51	*
52	* The basic state indicated here is whether the CPU has been started or not. In
53	* addition, there are sub-states when started for assisting scheduling (GVMM
54	* mostly).
55	*
56	* The transition out of the STOPPED state is done by a vmR3PowerOn.
57	* The transition back to the STOPPED state is done by vmR3PowerOff.
58	*
59	* (Alternatively we could let vmR3PowerOn start CPU 0 only and let the SPIP
60	* handling switch on the other CPUs. Then vmR3Reset would stop all but CPU 0.)
61	*/
62	typedef enum VMCPUSTATE
63	{
64	/** The customary invalid zero. */
65	VMCPUSTATE_INVALID = 0,
66
67	/** Virtual CPU has not yet been started. */
68	VMCPUSTATE_STOPPED,
69
70	/** CPU started. */
71	VMCPUSTATE_STARTED,
72	/** CPU started in HM context. */
73	VMCPUSTATE_STARTED_HM,
74	/** Executing guest code and can be poked (RC or STI bits of HM). */
75	VMCPUSTATE_STARTED_EXEC,
76	/** Executing guest code in the recompiler. */
77	VMCPUSTATE_STARTED_EXEC_REM,
78	/** Halted. */
79	VMCPUSTATE_STARTED_HALTED,
80
81	/** The end of valid virtual CPU states. */
82	VMCPUSTATE_END,
83
84	/** Ensure 32-bit type. */
85	VMCPUSTATE_32BIT_HACK = 0x7fffffff
86	} VMCPUSTATE;
87
88
89	/**
90	* The cross context virtual CPU structure.
91	*
92	* Run 'kmk run-struct-tests' (from src/VBox/VMM if you like) after updating!
93	*/
94	typedef struct VMCPU
95	{
96	/** Per CPU forced action.
97	* See the VMCPU_FF_* \#defines. Updated atomically. */
98	uint32_t volatile fLocalForcedActions; /* 0 */
99	/** The CPU state. */
100	VMCPUSTATE volatile enmState; /* 4 */
101
102	/** Pointer to the ring-3 UVMCPU structure. */
103	PUVMCPU pUVCpu; /* 8 */
104	/** Ring-3 Host Context VM Pointer. */
105	PVMR3 pVMR3; /* 16 / 12 */
106	/** Ring-0 Host Context VM Pointer. */
107	PVMR0 pVMR0; /* 24 / 16 */
108	/** Raw-mode Context VM Pointer. */
109	PVMRC pVMRC; /* 32 / 20 */
110	/** The CPU ID.
111	* This is the index into the VM::aCpu array. */
112	VMCPUID idCpu; /* 36 / 24 */
113	/** The native thread handle. */
114	RTNATIVETHREAD hNativeThread; /* 40 / 28 */
115	/** The native R0 thread handle. (different from the R3 handle!) */
116	RTNATIVETHREAD hNativeThreadR0; /* 48 / 32 */
117	/** Which host CPU ID is this EMT running on.
118	* Only valid when in RC or HMR0 with scheduling disabled. */
119	RTCPUID volatile idHostCpu; /* 56 / 36 */
120	/** The CPU set index corresponding to idHostCpu, UINT32_MAX if not valid.
121	* @remarks Best to make sure iHostCpuSet shares cache line with idHostCpu! */
122	uint32_t volatile iHostCpuSet; /* 60 / 40 */
123
124	/** Trace groups enable flags. */
125	uint32_t fTraceGroups; /* 64 / 44 */
126	/** Align the structures below bit on a 64-byte boundary and make sure it starts
127	* at the same offset in both 64-bit and 32-bit builds.
128	*
129	* @remarks The alignments of the members that are larger than 48 bytes should be
130	* 64-byte for cache line reasons. structs containing small amounts of
131	* data could be lumped together at the end with a < 64 byte padding
132	* following it (to grow into and align the struct size).
133	* */
134	uint8_t abAlignment1[HC_ARCH_BITS == 64 ? 56 : 12+64];
135	/** State data for use by ad hoc profiling. */
136	uint32_t uAdHoc;
137	/** Profiling samples for use by ad hoc profiling. */
138	STAMPROFILEADV aStatAdHoc[8]; /* size: 408 = 320 /
139
140	/** HM part. */
141	union
142	{
143	#ifdef ___HMInternal_h
144	struct HMCPU s;
145	#endif
146	uint8_t padding[5760]; /* multiple of 64 */
147	} hm;
148
149	/** EM part. */
150	union
151	{
152	#ifdef ___EMInternal_h
153	struct EMCPU s;
154	#endif
155	uint8_t padding[1408]; /* multiple of 64 */
156	} em;
157
158	/** IEM part. */
159	union
160	{
161	#ifdef ___IEMInternal_h
162	struct IEMCPU s;
163	#endif
164	uint8_t padding[3072]; /* multiple of 64 */
165	} iem;
166
167	/** TRPM part. */
168	union
169	{
170	#ifdef ___TRPMInternal_h
171	struct TRPMCPU s;
172	#endif
173	uint8_t padding[128]; /* multiple of 64 */
174	} trpm;
175
176	/** TM part. */
177	union
178	{
179	#ifdef ___TMInternal_h
180	struct TMCPU s;
181	#endif
182	uint8_t padding[384]; /* multiple of 64 */
183	} tm;
184
185	/** VMM part. */
186	union
187	{
188	#ifdef ___VMMInternal_h
189	struct VMMCPU s;
190	#endif
191	uint8_t padding[704]; /* multiple of 64 */
192	} vmm;
193
194	/** PDM part. */
195	union
196	{
197	#ifdef ___PDMInternal_h
198	struct PDMCPU s;
199	#endif
200	uint8_t padding[256]; /* multiple of 64 */
201	} pdm;
202
203	/** IOM part. */
204	union
205	{
206	#ifdef ___IOMInternal_h
207	struct IOMCPU s;
208	#endif
209	uint8_t padding[512]; /* multiple of 64 */
210	} iom;
211
212	/** DBGF part.
213	* @todo Combine this with other tiny structures. */
214	union
215	{
216	#ifdef ___DBGFInternal_h
217	struct DBGFCPU s;
218	#endif
219	uint8_t padding[64]; /* multiple of 64 */
220	} dbgf;
221
222	/** GIM part. */
223	union
224	{
225	#ifdef ___GIMInternal_h
226	struct GIMCPU s;
227	#endif
228	uint8_t padding[64]; /* multiple of 64 */
229	} gim;
230
231	/** Align the following members on page boundary. */
232	uint8_t abAlignment2[3584];
233
234	/** PGM part. */
235	union
236	{
237	#ifdef ___PGMInternal_h
238	struct PGMCPU s;
239	#endif
240	uint8_t padding[4096]; /* multiple of 4096 */
241	} pgm;
242
243	/** CPUM part. */
244	union
245	{
246	#ifdef ___CPUMInternal_h
247	struct CPUMCPU s;
248	#endif
249	uint8_t padding[4096]; /* multiple of 4096 */
250	} cpum;
251
252	} VMCPU;
253
254
255	#ifndef VBOX_FOR_DTRACE_LIB
256
257	/** @name Operations on VMCPU::enmState
258	* @{ */
259	/** Gets the VMCPU state. */
260	#define VMCPU_GET_STATE(pVCpu) ( (pVCpu)->enmState )
261	/** Sets the VMCPU state. */
262	#define VMCPU_SET_STATE(pVCpu, enmNewState) \
263	ASMAtomicWriteU32((uint32_t volatile *)&(pVCpu)->enmState, (enmNewState))
264	/** Cmpares and sets the VMCPU state. */
265	#define VMCPU_CMPXCHG_STATE(pVCpu, enmNewState, enmOldState) \
266	ASMAtomicCmpXchgU32((uint32_t volatile *)&(pVCpu)->enmState, (enmNewState), (enmOldState))
267	/** Checks the VMCPU state. */
268	#ifdef VBOX_STRICT
269	# define VMCPU_ASSERT_STATE(pVCpu, enmExpectedState) \
270	do { \
271	VMCPUSTATE enmState = VMCPU_GET_STATE(pVCpu); \
272	AssertMsg(enmState == (enmExpectedState), \
273	("enmState=%d enmExpectedState=%d idCpu=%u\n", \
274	enmState, enmExpectedState, (pVCpu)->idCpu)); \
275	} while (0)
276	#else
277	# define VMCPU_ASSERT_STATE(pVCpu, enmExpectedState) do { } while (0)
278	#endif
279	/** Tests if the state means that the CPU is started. */
280	#define VMCPUSTATE_IS_STARTED(enmState) ( (enmState) > VMCPUSTATE_STOPPED )
281	/** Tests if the state means that the CPU is stopped. */
282	#define VMCPUSTATE_IS_STOPPED(enmState) ( (enmState) == VMCPUSTATE_STOPPED )
283	/** @} */
284
285
286	/** The name of the raw-mode context VMM Core module. */
287	#define VMMRC_MAIN_MODULE_NAME "VMMRC.rc"
288	/** The name of the ring-0 context VMM Core module. */
289	#define VMMR0_MAIN_MODULE_NAME "VMMR0.r0"
290
291	/**
292	* Wrapper macro for avoiding too much \#ifdef VBOX_WITH_RAW_MODE.
293	*/
294	#ifdef VBOX_WITH_RAW_MODE
295	# define VM_WHEN_RAW_MODE(a_WithExpr, a_WithoutExpr) a_WithExpr
296	#else
297	# define VM_WHEN_RAW_MODE(a_WithExpr, a_WithoutExpr) a_WithoutExpr
298	#endif
299
300
301	/** VM Forced Action Flags.
302	*
303	* Use the VM_FF_SET() and VM_FF_CLEAR() macros to change the force
304	* action mask of a VM.
305	*
306	* @{
307	*/
308	/** The virtual sync clock has been stopped, go to TM until it has been
309	* restarted... */
310	#define VM_FF_TM_VIRTUAL_SYNC RT_BIT_32(2)
311	/** PDM Queues are pending. */
312	#define VM_FF_PDM_QUEUES RT_BIT_32(VM_FF_PDM_QUEUES_BIT)
313	/** The bit number for VM_FF_PDM_QUEUES. */
314	#define VM_FF_PDM_QUEUES_BIT 3
315	/** PDM DMA transfers are pending. */
316	#define VM_FF_PDM_DMA RT_BIT_32(VM_FF_PDM_DMA_BIT)
317	/** The bit number for VM_FF_PDM_DMA. */
318	#define VM_FF_PDM_DMA_BIT 4
319	/** This action forces the VM to call DBGF so DBGF can service debugger
320	* requests in the emulation thread.
321	* This action flag stays asserted till DBGF clears it.*/
322	#define VM_FF_DBGF RT_BIT_32(VM_FF_DBGF_BIT)
323	/** The bit number for VM_FF_DBGF. */
324	#define VM_FF_DBGF_BIT 8
325	/** This action forces the VM to service pending requests from other
326	* thread or requests which must be executed in another context. */
327	#define VM_FF_REQUEST RT_BIT_32(9)
328	/** Check for VM state changes and take appropriate action. */
329	#define VM_FF_CHECK_VM_STATE RT_BIT_32(VM_FF_CHECK_VM_STATE_BIT)
330	/** The bit number for VM_FF_CHECK_VM_STATE. */
331	#define VM_FF_CHECK_VM_STATE_BIT 10
332	/** Reset the VM. (postponed) */
333	#define VM_FF_RESET RT_BIT_32(VM_FF_RESET_BIT)
334	/** The bit number for VM_FF_RESET. */
335	#define VM_FF_RESET_BIT 11
336	/** EMT rendezvous in VMM. */
337	#define VM_FF_EMT_RENDEZVOUS RT_BIT_32(VM_FF_EMT_RENDEZVOUS_BIT)
338	/** The bit number for VM_FF_EMT_RENDEZVOUS. */
339	#define VM_FF_EMT_RENDEZVOUS_BIT 12
340
341	/** PGM needs to allocate handy pages. */
342	#define VM_FF_PGM_NEED_HANDY_PAGES RT_BIT_32(18)
343	/** PGM is out of memory.
344	* Abandon all loops and code paths which can be resumed and get up to the EM
345	* loops. */
346	#define VM_FF_PGM_NO_MEMORY RT_BIT_32(19)
347	/** PGM is about to perform a lightweight pool flush
348	* Guest SMP: all EMT threads should return to ring 3
349	*/
350	#define VM_FF_PGM_POOL_FLUSH_PENDING RT_BIT_32(20)
351	/** REM needs to be informed about handler changes. */
352	#define VM_FF_REM_HANDLER_NOTIFY RT_BIT_32(VM_FF_REM_HANDLER_NOTIFY_BIT)
353	/** The bit number for VM_FF_REM_HANDLER_NOTIFY. */
354	#define VM_FF_REM_HANDLER_NOTIFY_BIT 29
355	/** Suspend the VM - debug only. */
356	#define VM_FF_DEBUG_SUSPEND RT_BIT_32(31)
357
358
359	/** This action forces the VM to check any pending interrups on the APIC. */
360	#define VMCPU_FF_INTERRUPT_APIC RT_BIT_32(0)
361	/** This action forces the VM to check any pending interrups on the PIC. */
362	#define VMCPU_FF_INTERRUPT_PIC RT_BIT_32(1)
363	/** This action forces the VM to schedule and run pending timer (TM).
364	* @remarks Don't move - PATM compatibility. */
365	#define VMCPU_FF_TIMER RT_BIT_32(2)
366	/** This action forces the VM to check any pending NMIs. */
367	#define VMCPU_FF_INTERRUPT_NMI_BIT 3
368	#define VMCPU_FF_INTERRUPT_NMI RT_BIT_32(VMCPU_FF_INTERRUPT_NMI_BIT)
369	/** This action forces the VM to check any pending SMIs. */
370	#define VMCPU_FF_INTERRUPT_SMI_BIT 4
371	#define VMCPU_FF_INTERRUPT_SMI RT_BIT_32(VMCPU_FF_INTERRUPT_SMI_BIT)
372	/** PDM critical section unlocking is pending, process promptly upon return to R3. */
373	#define VMCPU_FF_PDM_CRITSECT RT_BIT_32(5)
374	/** This action forces the VCPU out of the halted state. */
375	#define VMCPU_FF_UNHALT RT_BIT_32(6)
376	/** Pending IEM action (bit number). */
377	#define VMCPU_FF_IEM_BIT 7
378	/** Pending IEM action (mask). */
379	#define VMCPU_FF_IEM RT_BIT_32(VMCPU_FF_IEM_BIT)
380	/** This action forces the VM to service pending requests from other
381	* thread or requests which must be executed in another context. */
382	#define VMCPU_FF_REQUEST RT_BIT_32(9)
383	/** This action forces the VM to service any pending updates to CR3 (used only
384	* by HM). */
385	#define VMCPU_FF_HM_UPDATE_CR3 RT_BIT_32(12)
386	/** This action forces the VM to service any pending updates to PAE PDPEs (used
387	* only by HM). */
388	#define VMCPU_FF_HM_UPDATE_PAE_PDPES RT_BIT_32(13)
389	/** This action forces the VM to resync the page tables before going
390	* back to execute guest code. (GLOBAL FLUSH) */
391	#define VMCPU_FF_PGM_SYNC_CR3 RT_BIT_32(16)
392	/** Same as VM_FF_PGM_SYNC_CR3 except that global pages can be skipped.
393	* (NON-GLOBAL FLUSH) */
394	#define VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL RT_BIT_32(17)
395	/** Check for pending TLB shootdown actions (deprecated)
396	* Reserved for furture HM re-use if necessary / safe.
397	* Consumer: HM */
398	#define VMCPU_FF_TLB_SHOOTDOWN_UNUSED RT_BIT_32(18)
399	/** Check for pending TLB flush action.
400	* Consumer: HM
401	* @todo rename to VMCPU_FF_HM_TLB_FLUSH */
402	#define VMCPU_FF_TLB_FLUSH RT_BIT_32(VMCPU_FF_TLB_FLUSH_BIT)
403	/** The bit number for VMCPU_FF_TLB_FLUSH. */
404	#define VMCPU_FF_TLB_FLUSH_BIT 19
405	#ifdef VBOX_WITH_RAW_MODE
406	/** Check the interrupt and trap gates */
407	# define VMCPU_FF_TRPM_SYNC_IDT RT_BIT_32(20)
408	/** Check Guest's TSS ring 0 stack */
409	# define VMCPU_FF_SELM_SYNC_TSS RT_BIT_32(21)
410	/** Check Guest's GDT table */
411	# define VMCPU_FF_SELM_SYNC_GDT RT_BIT_32(22)
412	/** Check Guest's LDT table */
413	# define VMCPU_FF_SELM_SYNC_LDT RT_BIT_32(23)
414	#endif /* VBOX_WITH_RAW_MODE */
415	/** Inhibit interrupts pending. See EMGetInhibitInterruptsPC(). */
416	#define VMCPU_FF_INHIBIT_INTERRUPTS RT_BIT_32(24)
417	/** Block injection of non-maskable interrupts to the guest. */
418	#define VMCPU_FF_BLOCK_NMIS RT_BIT_32(25)
419	#ifdef VBOX_WITH_RAW_MODE
420	/** CSAM needs to scan the page that's being executed */
421	# define VMCPU_FF_CSAM_SCAN_PAGE RT_BIT_32(26)
422	/** CSAM needs to do some homework. */
423	# define VMCPU_FF_CSAM_PENDING_ACTION RT_BIT_32(27)
424	#endif /* VBOX_WITH_RAW_MODE */
425	/** Force return to Ring-3. */
426	#define VMCPU_FF_TO_R3 RT_BIT_32(28)
427
428	/** Externally VM forced actions. Used to quit the idle/wait loop. */
429	#define VM_FF_EXTERNAL_SUSPENDED_MASK (VM_FF_CHECK_VM_STATE \| VM_FF_DBGF \| VM_FF_REQUEST \| VM_FF_EMT_RENDEZVOUS)
430	/** Externally VMCPU forced actions. Used to quit the idle/wait loop. */
431	#define VMCPU_FF_EXTERNAL_SUSPENDED_MASK (VMCPU_FF_REQUEST)
432
433	/** Externally forced VM actions. Used to quit the idle/wait loop. */
434	#define VM_FF_EXTERNAL_HALTED_MASK ( VM_FF_CHECK_VM_STATE \| VM_FF_DBGF \| VM_FF_REQUEST \
435	\| VM_FF_PDM_QUEUES \| VM_FF_PDM_DMA \| VM_FF_EMT_RENDEZVOUS)
436	/** Externally forced VMCPU actions. Used to quit the idle/wait loop. */
437	#define VMCPU_FF_EXTERNAL_HALTED_MASK ( VMCPU_FF_INTERRUPT_APIC \| VMCPU_FF_INTERRUPT_PIC \| VMCPU_FF_REQUEST \
438	\| VMCPU_FF_INTERRUPT_NMI \| VMCPU_FF_INTERRUPT_SMI \| VMCPU_FF_UNHALT \
439	\| VMCPU_FF_TIMER)
440
441	/** High priority VM pre-execution actions. */
442	#define VM_FF_HIGH_PRIORITY_PRE_MASK ( VM_FF_CHECK_VM_STATE \| VM_FF_DBGF \| VM_FF_TM_VIRTUAL_SYNC \
443	\| VM_FF_DEBUG_SUSPEND \| VM_FF_PGM_NEED_HANDY_PAGES \| VM_FF_PGM_NO_MEMORY \
444	\| VM_FF_EMT_RENDEZVOUS)
445	/** High priority VMCPU pre-execution actions. */
446	#define VMCPU_FF_HIGH_PRIORITY_PRE_MASK ( VMCPU_FF_TIMER \| VMCPU_FF_INTERRUPT_APIC \| VMCPU_FF_INTERRUPT_PIC \
447	\| VMCPU_FF_PGM_SYNC_CR3 \| VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL \
448	\| VMCPU_FF_INHIBIT_INTERRUPTS \
449	\| VM_WHEN_RAW_MODE( VMCPU_FF_SELM_SYNC_TSS \| VMCPU_FF_TRPM_SYNC_IDT \
450	\| VMCPU_FF_SELM_SYNC_GDT \| VMCPU_FF_SELM_SYNC_LDT, 0 ) )
451
452	/** High priority VM pre raw-mode execution mask. */
453	#define VM_FF_HIGH_PRIORITY_PRE_RAW_MASK (VM_FF_PGM_NEED_HANDY_PAGES \| VM_FF_PGM_NO_MEMORY)
454	/** High priority VMCPU pre raw-mode execution mask. */
455	#define VMCPU_FF_HIGH_PRIORITY_PRE_RAW_MASK ( VMCPU_FF_PGM_SYNC_CR3 \| VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL \
456	\| VMCPU_FF_INHIBIT_INTERRUPTS \
457	\| VM_WHEN_RAW_MODE( VMCPU_FF_SELM_SYNC_TSS \| VMCPU_FF_TRPM_SYNC_IDT \
458	\| VMCPU_FF_SELM_SYNC_GDT \| VMCPU_FF_SELM_SYNC_LDT, 0) )
459
460	/** High priority post-execution actions. */
461	#define VM_FF_HIGH_PRIORITY_POST_MASK (VM_FF_PGM_NO_MEMORY)
462	/** High priority post-execution actions. */
463	#define VMCPU_FF_HIGH_PRIORITY_POST_MASK ( VMCPU_FF_PDM_CRITSECT \| VM_WHEN_RAW_MODE(VMCPU_FF_CSAM_PENDING_ACTION, 0) \
464	\| VMCPU_FF_HM_UPDATE_CR3 \| VMCPU_FF_HM_UPDATE_PAE_PDPES \| VMCPU_FF_IEM)
465
466	/** Normal priority VM post-execution actions. */
467	#define VM_FF_NORMAL_PRIORITY_POST_MASK ( VM_FF_CHECK_VM_STATE \| VM_FF_DBGF \| VM_FF_RESET \
468	\| VM_FF_PGM_NO_MEMORY \| VM_FF_EMT_RENDEZVOUS)
469	/** Normal priority VMCPU post-execution actions. */
470	#define VMCPU_FF_NORMAL_PRIORITY_POST_MASK VM_WHEN_RAW_MODE(VMCPU_FF_CSAM_SCAN_PAGE, 0)
471
472	/** Normal priority VM actions. */
473	#define VM_FF_NORMAL_PRIORITY_MASK ( VM_FF_REQUEST \| VM_FF_PDM_QUEUES \| VM_FF_PDM_DMA \| VM_FF_REM_HANDLER_NOTIFY \
474	\| VM_FF_EMT_RENDEZVOUS)
475	/** Normal priority VMCPU actions. */
476	#define VMCPU_FF_NORMAL_PRIORITY_MASK (VMCPU_FF_REQUEST \| VMCPU_FF_UNHALT)
477
478	/** Flags to clear before resuming guest execution. */
479	#define VMCPU_FF_RESUME_GUEST_MASK (VMCPU_FF_TO_R3)
480
481	/** VM Flags that cause the HM loops to go back to ring-3. */
482	#define VM_FF_HM_TO_R3_MASK ( VM_FF_TM_VIRTUAL_SYNC \| VM_FF_PGM_NEED_HANDY_PAGES \| VM_FF_PGM_NO_MEMORY \
483	\| VM_FF_PDM_QUEUES \| VM_FF_EMT_RENDEZVOUS)
484	/** VMCPU Flags that cause the HM loops to go back to ring-3. */
485	#define VMCPU_FF_HM_TO_R3_MASK (VMCPU_FF_TO_R3 \| VMCPU_FF_TIMER \| VMCPU_FF_PDM_CRITSECT \| VMCPU_FF_IEM)
486
487	/** High priority ring-0 VM pre HM-mode execution mask. */
488	#define VM_FF_HP_R0_PRE_HM_MASK (VM_FF_HM_TO_R3_MASK \| VM_FF_REQUEST \| VM_FF_PGM_POOL_FLUSH_PENDING \| VM_FF_PDM_DMA)
489	/** High priority ring-0 VMCPU pre HM-mode execution mask. */
490	#define VMCPU_FF_HP_R0_PRE_HM_MASK ( VMCPU_FF_HM_TO_R3_MASK \| VMCPU_FF_PGM_SYNC_CR3 \
491	\| VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL \| VMCPU_FF_REQUEST)
492	/** High priority ring-0 VM pre HM-mode execution mask, single stepping. */
493	#define VM_FF_HP_R0_PRE_HM_STEP_MASK (VM_FF_HP_R0_PRE_HM_MASK & ~( VM_FF_TM_VIRTUAL_SYNC \| VM_FF_PDM_QUEUES \
494	\| VM_FF_EMT_RENDEZVOUS \| VM_FF_REQUEST \
495	\| VM_FF_PDM_DMA) )
496	/** High priority ring-0 VMCPU pre HM-mode execution mask, single stepping. */
497	#define VMCPU_FF_HP_R0_PRE_HM_STEP_MASK (VMCPU_FF_HP_R0_PRE_HM_MASK & ~( VMCPU_FF_TO_R3 \| VMCPU_FF_TIMER \
498	\| VMCPU_FF_PDM_CRITSECT \| VMCPU_FF_REQUEST) )
499
500	/** All the forced VM flags. */
501	#define VM_FF_ALL_MASK (~0U)
502	/** All the forced VMCPU flags. */
503	#define VMCPU_FF_ALL_MASK (~0U)
504
505	/** All the forced VM flags except those related to raw-mode and hardware
506	* assisted execution. */
507	#define VM_FF_ALL_REM_MASK (~(VM_FF_HIGH_PRIORITY_PRE_RAW_MASK) \| VM_FF_PGM_NO_MEMORY)
508	/** All the forced VMCPU flags except those related to raw-mode and hardware
509	* assisted execution. */
510	#define VMCPU_FF_ALL_REM_MASK (~( VMCPU_FF_HIGH_PRIORITY_PRE_RAW_MASK \| VMCPU_FF_PDM_CRITSECT \
511	\| VMCPU_FF_TLB_FLUSH \| VM_WHEN_RAW_MODE(VMCPU_FF_CSAM_PENDING_ACTION, 0) ))
512	/** @} */
513
514	/** @def VM_FF_SET
515	* Sets a force action flag.
516	*
517	* @param pVM The cross context VM structure.
518	* @param fFlag The flag to set.
519	*/
520	#if 1
521	# define VM_FF_SET(pVM, fFlag) ASMAtomicOrU32(&(pVM)->fGlobalForcedActions, (fFlag))
522	#else
523	# define VM_FF_SET(pVM, fFlag) \
524	do { ASMAtomicOrU32(&(pVM)->fGlobalForcedActions, (fFlag)); \
525	RTLogPrintf("VM_FF_SET : %08x %s - %s(%d) %s\n", (pVM)->fGlobalForcedActions, #fFlag, __FILE__, __LINE__, __FUNCTION__); \
526	} while (0)
527	#endif
528
529	/** @def VMCPU_FF_SET
530	* Sets a force action flag for the given VCPU.
531	*
532	* @param pVCpu The cross context virtual CPU structure.
533	* @param fFlag The flag to set.
534	*/
535	#define VMCPU_FF_SET(pVCpu, fFlag) ASMAtomicOrU32(&(pVCpu)->fLocalForcedActions, (fFlag))
536
537	/** @def VM_FF_CLEAR
538	* Clears a force action flag.
539	*
540	* @param pVM The cross context VM structure.
541	* @param fFlag The flag to clear.
542	*/
543	#if 1
544	# define VM_FF_CLEAR(pVM, fFlag) ASMAtomicAndU32(&(pVM)->fGlobalForcedActions, ~(fFlag))
545	#else
546	# define VM_FF_CLEAR(pVM, fFlag) \
547	do { ASMAtomicAndU32(&(pVM)->fGlobalForcedActions, ~(fFlag)); \
548	RTLogPrintf("VM_FF_CLEAR: %08x %s - %s(%d) %s\n", (pVM)->fGlobalForcedActions, #fFlag, __FILE__, __LINE__, __FUNCTION__); \
549	} while (0)
550	#endif
551
552	/** @def VMCPU_FF_CLEAR
553	* Clears a force action flag for the given VCPU.
554	*
555	* @param pVCpu The cross context virtual CPU structure.
556	* @param fFlag The flag to clear.
557	*/
558	#define VMCPU_FF_CLEAR(pVCpu, fFlag) ASMAtomicAndU32(&(pVCpu)->fLocalForcedActions, ~(fFlag))
559
560	/** @def VM_FF_IS_SET
561	* Checks if a force action flag is set.
562	*
563	* @param pVM The cross context VM structure.
564	* @param fFlag The flag to check.
565	*/
566	#define VM_FF_IS_SET(pVM, fFlag) (((pVM)->fGlobalForcedActions & (fFlag)) == (fFlag))
567
568	/** @def VMCPU_FF_IS_SET
569	* Checks if a force action flag is set for the given VCPU.
570	*
571	* @param pVCpu The cross context virtual CPU structure.
572	* @param fFlag The flag to check.
573	*/
574	#define VMCPU_FF_IS_SET(pVCpu, fFlag) (((pVCpu)->fLocalForcedActions & (fFlag)) == (fFlag))
575
576	/** @def VM_FF_IS_PENDING
577	* Checks if one or more force action in the specified set is pending.
578	*
579	* @param pVM The cross context VM structure.
580	* @param fFlags The flags to check for.
581	*/
582	#define VM_FF_IS_PENDING(pVM, fFlags) RT_BOOL((pVM)->fGlobalForcedActions & (fFlags))
583
584	/** @def VM_FF_TEST_AND_CLEAR
585	* Checks if one (!) force action in the specified set is pending and clears it atomically
586	*
587	* @returns true if the bit was set.
588	* @returns false if the bit was clear.
589	* @param pVM The cross context VM structure.
590	* @param iBit Bit position to check and clear
591	*/
592	#define VM_FF_TEST_AND_CLEAR(pVM, iBit) (ASMAtomicBitTestAndClear(&(pVM)->fGlobalForcedActions, iBit##_BIT))
593
594	/** @def VMCPU_FF_TEST_AND_CLEAR
595	* Checks if one (!) force action in the specified set is pending and clears it atomically
596	*
597	* @returns true if the bit was set.
598	* @returns false if the bit was clear.
599	* @param pVCpu The cross context virtual CPU structure.
600	* @param iBit Bit position to check and clear
601	*/
602	#define VMCPU_FF_TEST_AND_CLEAR(pVCpu, iBit) (ASMAtomicBitTestAndClear(&(pVCpu)->fLocalForcedActions, iBit##_BIT))
603
604	/** @def VMCPU_FF_IS_PENDING
605	* Checks if one or more force action in the specified set is pending for the given VCPU.
606	*
607	* @param pVCpu The cross context virtual CPU structure.
608	* @param fFlags The flags to check for.
609	*/
610	#define VMCPU_FF_IS_PENDING(pVCpu, fFlags) RT_BOOL((pVCpu)->fLocalForcedActions & (fFlags))
611
612	/** @def VM_FF_IS_PENDING_EXCEPT
613	* Checks if one or more force action in the specified set is pending while one
614	* or more other ones are not.
615	*
616	* @param pVM The cross context VM structure.
617	* @param fFlags The flags to check for.
618	* @param fExcpt The flags that should not be set.
619	*/
620	#define VM_FF_IS_PENDING_EXCEPT(pVM, fFlags, fExcpt) ( ((pVM)->fGlobalForcedActions & (fFlags)) && !((pVM)->fGlobalForcedActions & (fExcpt)) )
621
622	/** @def VMCPU_FF_IS_PENDING_EXCEPT
623	* Checks if one or more force action in the specified set is pending for the given
624	* VCPU while one or more other ones are not.
625	*
626	* @param pVCpu The cross context virtual CPU structure.
627	* @param fFlags The flags to check for.
628	* @param fExcpt The flags that should not be set.
629	*/
630	#define VMCPU_FF_IS_PENDING_EXCEPT(pVCpu, fFlags, fExcpt) ( ((pVCpu)->fLocalForcedActions & (fFlags)) && !((pVCpu)->fLocalForcedActions & (fExcpt)) )
631
632	/** @def VM_IS_EMT
633	* Checks if the current thread is the emulation thread (EMT).
634	*
635	* @remark The ring-0 variation will need attention if we expand the ring-0
636	* code to let threads other than EMT mess around with the VM.
637	*/
638	#ifdef IN_RC
639	# define VM_IS_EMT(pVM) true
640	#else
641	# define VM_IS_EMT(pVM) (VMMGetCpu(pVM) != NULL)
642	#endif
643
644	/** @def VMCPU_IS_EMT
645	* Checks if the current thread is the emulation thread (EMT) for the specified
646	* virtual CPU.
647	*/
648	#ifdef IN_RC
649	# define VMCPU_IS_EMT(pVCpu) true
650	#else
651	# define VMCPU_IS_EMT(pVCpu) ((pVCpu) && ((pVCpu) == VMMGetCpu((pVCpu)->CTX_SUFF(pVM))))
652	#endif
653
654	/** @def VM_ASSERT_EMT
655	* Asserts that the current thread IS the emulation thread (EMT).
656	*/
657	#ifdef IN_RC
658	# define VM_ASSERT_EMT(pVM) Assert(VM_IS_EMT(pVM))
659	#elif defined(IN_RING0)
660	# define VM_ASSERT_EMT(pVM) Assert(VM_IS_EMT(pVM))
661	#else
662	# define VM_ASSERT_EMT(pVM) \
663	AssertMsg(VM_IS_EMT(pVM), \
664	("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd\n", RTThreadNativeSelf(), VMR3GetVMCPUNativeThread(pVM)))
665	#endif
666
667	/** @def VMCPU_ASSERT_EMT
668	* Asserts that the current thread IS the emulation thread (EMT) of the
669	* specified virtual CPU.
670	*/
671	#ifdef IN_RC
672	# define VMCPU_ASSERT_EMT(pVCpu) Assert(VMCPU_IS_EMT(pVCpu))
673	#elif defined(IN_RING0)
674	# define VMCPU_ASSERT_EMT(pVCpu) AssertMsg(VMCPU_IS_EMT(pVCpu), \
675	("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd idCpu=%u\n", \
676	RTThreadNativeSelf(), (pVCpu) ? (pVCpu)->hNativeThreadR0 : 0, \
677	(pVCpu) ? (pVCpu)->idCpu : 0))
678	#else
679	# define VMCPU_ASSERT_EMT(pVCpu) AssertMsg(VMCPU_IS_EMT(pVCpu), \
680	("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd idCpu=%#x\n", \
681	RTThreadNativeSelf(), (pVCpu)->hNativeThread, (pVCpu)->idCpu))
682	#endif
683
684	/** @def VM_ASSERT_EMT_RETURN
685	* Asserts that the current thread IS the emulation thread (EMT) and returns if it isn't.
686	*/
687	#ifdef IN_RC
688	# define VM_ASSERT_EMT_RETURN(pVM, rc) AssertReturn(VM_IS_EMT(pVM), (rc))
689	#elif defined(IN_RING0)
690	# define VM_ASSERT_EMT_RETURN(pVM, rc) AssertReturn(VM_IS_EMT(pVM), (rc))
691	#else
692	# define VM_ASSERT_EMT_RETURN(pVM, rc) \
693	AssertMsgReturn(VM_IS_EMT(pVM), \
694	("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd\n", RTThreadNativeSelf(), VMR3GetVMCPUNativeThread(pVM)), \
695	(rc))
696	#endif
697
698	/** @def VMCPU_ASSERT_EMT_RETURN
699	* Asserts that the current thread IS the emulation thread (EMT) and returns if it isn't.
700	*/
701	#ifdef IN_RC
702	# define VMCPU_ASSERT_EMT_RETURN(pVCpu, rc) AssertReturn(VMCPU_IS_EMT(pVCpu), (rc))
703	#elif defined(IN_RING0)
704	# define VMCPU_ASSERT_EMT_RETURN(pVCpu, rc) AssertReturn(VMCPU_IS_EMT(pVCpu), (rc))
705	#else
706	# define VMCPU_ASSERT_EMT_RETURN(pVCpu, rc) \
707	AssertMsgReturn(VMCPU_IS_EMT(pVCpu), \
708	("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd idCpu=%#x\n", \
709	RTThreadNativeSelf(), (pVCpu)->hNativeThread, (pVCpu)->idCpu), \
710	(rc))
711	#endif
712
713	/** @def VMCPU_ASSERT_EMT_OR_GURU
714	* Asserts that the current thread IS the emulation thread (EMT) of the
715	* specified virtual CPU.
716	*/
717	#if defined(IN_RC) \|\| defined(IN_RING0)
718	# define VMCPU_ASSERT_EMT_OR_GURU(pVCpu) Assert( VMCPU_IS_EMT(pVCpu) \
719	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_GURU_MEDITATION \
720	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_GURU_MEDITATION_LS )
721	#else
722	# define VMCPU_ASSERT_EMT_OR_GURU(pVCpu) \
723	AssertMsg( VMCPU_IS_EMT(pVCpu) \
724	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_GURU_MEDITATION \
725	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_GURU_MEDITATION_LS, \
726	("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd idCpu=%#x\n", \
727	RTThreadNativeSelf(), (pVCpu)->hNativeThread, (pVCpu)->idCpu))
728	#endif
729
730	/** @def VMCPU_ASSERT_EMT_OR_NOT_RUNNING
731	* Asserts that the current thread IS the emulation thread (EMT) of the
732	* specified virtual CPU when the VM is running.
733	*/
734	#if defined(IN_RC) \|\| defined(IN_RING0)
735	# define VMCPU_ASSERT_EMT_OR_NOT_RUNNING(pVCpu) \
736	Assert( VMCPU_IS_EMT(pVCpu) \
737	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING \
738	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING_LS \
739	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING_FT )
740	#else
741	# define VMCPU_ASSERT_EMT_OR_NOT_RUNNING(pVCpu) \
742	AssertMsg( VMCPU_IS_EMT(pVCpu) \
743	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING \
744	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING_LS \
745	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING_FT, \
746	("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd idCpu=%#x\n", \
747	RTThreadNativeSelf(), (pVCpu)->hNativeThread, (pVCpu)->idCpu))
748	#endif
749
750	/** @def VM_ASSERT_EMT0
751	* Asserts that the current thread IS emulation thread \#0 (EMT0).
752	*/
753	#define VM_ASSERT_EMT0(pVM) VMCPU_ASSERT_EMT(&(pVM)->aCpus[0])
754
755	/** @def VM_ASSERT_EMT0_RETURN
756	* Asserts that the current thread IS emulation thread \#0 (EMT0) and returns if
757	* it isn't.
758	*/
759	#define VM_ASSERT_EMT0_RETURN(pVM, rc) VMCPU_ASSERT_EMT_RETURN(&(pVM)->aCpus[0], (rc))
760
761
762	/**
763	* Asserts that the current thread is NOT the emulation thread.
764	*/
765	#define VM_ASSERT_OTHER_THREAD(pVM) \
766	AssertMsg(!VM_IS_EMT(pVM), ("Not other thread!!\n"))
767
768
769	/** @def VM_ASSERT_STATE_RETURN
770	* Asserts a certain VM state.
771	*/
772	#define VM_ASSERT_STATE(pVM, _enmState) \
773	AssertMsg((pVM)->enmVMState == (_enmState), \
774	("state %s, expected %s\n", VMGetStateName((pVM)->enmVMState), VMGetStateName(_enmState)))
775
776	/** @def VM_ASSERT_STATE_RETURN
777	* Asserts a certain VM state and returns if it doesn't match.
778	*/
779	#define VM_ASSERT_STATE_RETURN(pVM, _enmState, rc) \
780	AssertMsgReturn((pVM)->enmVMState == (_enmState), \
781	("state %s, expected %s\n", VMGetStateName((pVM)->enmVMState), VMGetStateName(_enmState)), \
782	(rc))
783
784	/** @def VM_IS_VALID_EXT
785	* Asserts a the VM handle is valid for external access, i.e. not being destroy
786	* or terminated. */
787	#define VM_IS_VALID_EXT(pVM) \
788	( RT_VALID_ALIGNED_PTR(pVM, PAGE_SIZE) \
789	&& ( (unsigned)(pVM)->enmVMState < (unsigned)VMSTATE_DESTROYING \
790	\|\| ( (unsigned)(pVM)->enmVMState == (unsigned)VMSTATE_DESTROYING \
791	&& VM_IS_EMT(pVM))) )
792
793	/** @def VM_ASSERT_VALID_EXT_RETURN
794	* Asserts a the VM handle is valid for external access, i.e. not being
795	* destroy or terminated.
796	*/
797	#define VM_ASSERT_VALID_EXT_RETURN(pVM, rc) \
798	AssertMsgReturn(VM_IS_VALID_EXT(pVM), \
799	("pVM=%p state %s\n", (pVM), RT_VALID_ALIGNED_PTR(pVM, PAGE_SIZE) \
800	? VMGetStateName(pVM->enmVMState) : ""), \
801	(rc))
802
803	/** @def VMCPU_ASSERT_VALID_EXT_RETURN
804	* Asserts a the VMCPU handle is valid for external access, i.e. not being
805	* destroy or terminated.
806	*/
807	#define VMCPU_ASSERT_VALID_EXT_RETURN(pVCpu, rc) \
808	AssertMsgReturn( RT_VALID_ALIGNED_PTR(pVCpu, 64) \
809	&& RT_VALID_ALIGNED_PTR((pVCpu)->CTX_SUFF(pVM), PAGE_SIZE) \
810	&& (unsigned)(pVCpu)->CTX_SUFF(pVM)->enmVMState < (unsigned)VMSTATE_DESTROYING, \
811	("pVCpu=%p pVM=%p state %s\n", (pVCpu), RT_VALID_ALIGNED_PTR(pVCpu, 64) ? (pVCpu)->CTX_SUFF(pVM) : NULL, \
812	RT_VALID_ALIGNED_PTR(pVCpu, 64) && RT_VALID_ALIGNED_PTR((pVCpu)->CTX_SUFF(pVM), PAGE_SIZE) \
813	? VMGetStateName((pVCpu)->pVMR3->enmVMState) : ""), \
814	(rc))
815
816	#endif /* !VBOX_FOR_DTRACE_LIB */
817
818
819
820	/**
821	* The cross context VM structure.
822	*
823	* It contains all the VM data which have to be available in all contexts.
824	* Even if it contains all the data the idea is to use APIs not to modify all
825	* the members all around the place. Therefore we make use of unions to hide
826	* everything which isn't local to the current source module. This means we'll
827	* have to pay a little bit of attention when adding new members to structures
828	* in the unions and make sure to keep the padding sizes up to date.
829	*
830	* Run 'kmk run-struct-tests' (from src/VBox/VMM if you like) after updating!
831	*/
832	typedef struct VM
833	{
834	/** The state of the VM.
835	* This field is read only to everyone except the VM and EM. */
836	VMSTATE volatile enmVMState;
837	/** Forced action flags.
838	* See the VM_FF_* \#defines. Updated atomically.
839	*/
840	volatile uint32_t fGlobalForcedActions;
841	/** Pointer to the array of page descriptors for the VM structure allocation. */
842	R3PTRTYPE(PSUPPAGE) paVMPagesR3;
843	/** Session handle. For use when calling SUPR0 APIs. */
844	PSUPDRVSESSION pSession;
845	/** Pointer to the ring-3 VM structure. */
846	PUVM pUVM;
847	/** Ring-3 Host Context VM Pointer. */
848	R3PTRTYPE(struct VM *) pVMR3;
849	/** Ring-0 Host Context VM Pointer. */
850	R0PTRTYPE(struct VM *) pVMR0;
851	/** Raw-mode Context VM Pointer. */
852	RCPTRTYPE(struct VM *) pVMRC;
853
854	/** The GVM VM handle. Only the GVM should modify this field. */
855	uint32_t hSelf;
856	/** Number of virtual CPUs. */
857	uint32_t cCpus;
858	/** CPU excution cap (1-100) */
859	uint32_t uCpuExecutionCap;
860
861	/** Size of the VM structure including the VMCPU array. */
862	uint32_t cbSelf;
863
864	/** Offset to the VMCPU array starting from beginning of this structure. */
865	uint32_t offVMCPU;
866
867	/**
868	* VMMSwitcher assembly entry point returning to host context.
869	*
870	* Depending on how the host handles the rc status given in @a eax, this may
871	* return and let the caller resume whatever it was doing prior to the call.
872	*
873	*
874	* @param eax The return code, register.
875	* @remark Assume interrupts disabled.
876	* @remark This method pointer lives here because TRPM needs it.
877	*/
878	RTRCPTR pfnVMMRCToHostAsm/(int32_t eax)/;
879
880	/**
881	* VMMSwitcher assembly entry point returning to host context without saving the
882	* raw-mode context (hyper) registers.
883	*
884	* Unlike pfnVMMRC2HCAsm, this will not return to the caller. Instead it
885	* expects the caller to save a RC context in CPUM where one might return if the
886	* return code indicate that this is possible.
887	*
888	* This method pointer lives here because TRPM needs it.
889	*
890	* @param eax The return code, register.
891	* @remark Assume interrupts disabled.
892	* @remark This method pointer lives here because TRPM needs it.
893	*/
894	RTRCPTR pfnVMMRCToHostAsmNoReturn/(int32_t eax)/;
895
896	/** @name Various items that are frequently accessed.
897	* @{ */
898	/** Whether to recompile user mode code or run it raw/hm. */
899	bool fRecompileUser;
900	/** Whether to recompile supervisor mode code or run it raw/hm. */
901	bool fRecompileSupervisor;
902	/** Whether raw mode supports ring-1 code or not. */
903	bool fRawRing1Enabled;
904	/** PATM enabled flag.
905	* This is placed here for performance reasons. */
906	bool fPATMEnabled;
907	/** CSAM enabled flag.
908	* This is placed here for performance reasons. */
909	bool fCSAMEnabled;
910	/** Hardware VM support is available and enabled.
911	* Determined very early during init.
912	* This is placed here for performance reasons. */
913	bool fHMEnabled;
914	/** For asserting on fHMEnable usage. */
915	bool fHMEnabledFixed;
916	/** Hardware VM support requires a minimal raw-mode context.
917	* This is never set on 64-bit hosts, only 32-bit hosts requires it. */
918	bool fHMNeedRawModeCtx;
919	/** Set when this VM is the master FT node.
920	* @todo This doesn't need to be here, FTM should store it in it's own
921	* structures instead. */
922	bool fFaultTolerantMaster;
923	/** Large page enabled flag.
924	* @todo This doesn't need to be here, PGM should store it in it's own
925	* structures instead. */
926	bool fUseLargePages;
927	/** @} */
928
929	/** Alignment padding. */
930	uint8_t uPadding1[2];
931
932	/** @name Debugging
933	* @{ */
934	/** Raw-mode Context VM Pointer. */
935	RCPTRTYPE(RTTRACEBUF) hTraceBufRC;
936	/** Ring-3 Host Context VM Pointer. */
937	R3PTRTYPE(RTTRACEBUF) hTraceBufR3;
938	/** Ring-0 Host Context VM Pointer. */
939	R0PTRTYPE(RTTRACEBUF) hTraceBufR0;
940	/** @} */
941
942	#if HC_ARCH_BITS == 32
943	/** Alignment padding. */
944	uint32_t uPadding2;
945	#endif
946
947	/** @name Switcher statistics (remove)
948	* @{ */
949	/** Profiling the total time from Qemu to GC. */
950	STAMPROFILEADV StatTotalQemuToGC;
951	/** Profiling the total time from GC to Qemu. */
952	STAMPROFILEADV StatTotalGCToQemu;
953	/** Profiling the total time spent in GC. */
954	STAMPROFILEADV StatTotalInGC;
955	/** Profiling the total time spent not in Qemu. */
956	STAMPROFILEADV StatTotalInQemu;
957	/** Profiling the VMMSwitcher code for going to GC. */
958	STAMPROFILEADV StatSwitcherToGC;
959	/** Profiling the VMMSwitcher code for going to HC. */
960	STAMPROFILEADV StatSwitcherToHC;
961	STAMPROFILEADV StatSwitcherSaveRegs;
962	STAMPROFILEADV StatSwitcherSysEnter;
963	STAMPROFILEADV StatSwitcherDebug;
964	STAMPROFILEADV StatSwitcherCR0;
965	STAMPROFILEADV StatSwitcherCR4;
966	STAMPROFILEADV StatSwitcherJmpCR3;
967	STAMPROFILEADV StatSwitcherRstrRegs;
968	STAMPROFILEADV StatSwitcherLgdt;
969	STAMPROFILEADV StatSwitcherLidt;
970	STAMPROFILEADV StatSwitcherLldt;
971	STAMPROFILEADV StatSwitcherTSS;
972	/** @} */
973
974	/** Padding - the unions must be aligned on a 64 bytes boundary and the unions
975	* must start at the same offset on both 64-bit and 32-bit hosts. */
976	uint8_t abAlignment3[(HC_ARCH_BITS == 32 ? 24 : 0) + 40];
977
978	/** CPUM part. */
979	union
980	{
981	#ifdef ___CPUMInternal_h
982	struct CPUM s;
983	#endif
984	#ifdef ___VBox_vmm_cpum_h
985	/** Read only info exposed about the host and guest CPUs. */
986	struct
987	{
988	/** Padding for hidden fields. */
989	uint8_t abHidden0[64];
990	/** Host CPU feature information. */
991	CPUMFEATURES HostFeatures;
992	/** Guest CPU feature information. */
993	CPUMFEATURES GuestFeatures;
994	} const ro;
995	#endif
996	uint8_t padding[1536]; /* multiple of 64 */
997	} cpum;
998
999	/** VMM part. */
1000	union
1001	{
1002	#ifdef ___VMMInternal_h
1003	struct VMM s;
1004	#endif
1005	uint8_t padding[1600]; /* multiple of 64 */
1006	} vmm;
1007
1008	/** PGM part. */
1009	union
1010	{
1011	#ifdef ___PGMInternal_h
1012	struct PGM s;
1013	#endif
1014	uint8_t padding[40962+6080]; / multiple of 64 */
1015	} pgm;
1016
1017	/** HM part. */
1018	union
1019	{
1020	#ifdef ___HMInternal_h
1021	struct HM s;
1022	#endif
1023	uint8_t padding[5440]; /* multiple of 64 */
1024	} hm;
1025
1026	/** TRPM part. */
1027	union
1028	{
1029	#ifdef ___TRPMInternal_h
1030	struct TRPM s;
1031	#endif
1032	uint8_t padding[5248]; /* multiple of 64 */
1033	} trpm;
1034
1035	/** SELM part. */
1036	union
1037	{
1038	#ifdef ___SELMInternal_h
1039	struct SELM s;
1040	#endif
1041	uint8_t padding[768]; /* multiple of 64 */
1042	} selm;
1043
1044	/** MM part. */
1045	union
1046	{
1047	#ifdef ___MMInternal_h
1048	struct MM s;
1049	#endif
1050	uint8_t padding[192]; /* multiple of 64 */
1051	} mm;
1052
1053	/** PDM part. */
1054	union
1055	{
1056	#ifdef ___PDMInternal_h
1057	struct PDM s;
1058	#endif
1059	uint8_t padding[1920]; /* multiple of 64 */
1060	} pdm;
1061
1062	/** IOM part. */
1063	union
1064	{
1065	#ifdef ___IOMInternal_h
1066	struct IOM s;
1067	#endif
1068	uint8_t padding[896]; /* multiple of 64 */
1069	} iom;
1070
1071	/** PATM part. */
1072	union
1073	{
1074	#ifdef ___PATMInternal_h
1075	struct PATM s;
1076	#endif
1077	uint8_t padding[768]; /* multiple of 64 */
1078	} patm;
1079
1080	/** CSAM part. */
1081	union
1082	{
1083	#ifdef ___CSAMInternal_h
1084	struct CSAM s;
1085	#endif
1086	uint8_t padding[1088]; /* multiple of 64 */
1087	} csam;
1088
1089	/** EM part. */
1090	union
1091	{
1092	#ifdef ___EMInternal_h
1093	struct EM s;
1094	#endif
1095	uint8_t padding[256]; /* multiple of 64 */
1096	} em;
1097
1098	/** TM part. */
1099	union
1100	{
1101	#ifdef ___TMInternal_h
1102	struct TM s;
1103	#endif
1104	uint8_t padding[2496]; /* multiple of 64 */
1105	} tm;
1106
1107	/** DBGF part. */
1108	union
1109	{
1110	#ifdef ___DBGFInternal_h
1111	struct DBGF s;
1112	#endif
1113	uint8_t padding[2368]; /* multiple of 64 */
1114	} dbgf;
1115
1116	/** SSM part. */
1117	union
1118	{
1119	#ifdef ___SSMInternal_h
1120	struct SSM s;
1121	#endif
1122	uint8_t padding[128]; /* multiple of 64 */
1123	} ssm;
1124
1125	/** FTM part. */
1126	union
1127	{
1128	#ifdef ___FTMInternal_h
1129	struct FTM s;
1130	#endif
1131	uint8_t padding[512]; /* multiple of 64 */
1132	} ftm;
1133
1134	/** REM part. */
1135	union
1136	{
1137	#ifdef ___REMInternal_h
1138	struct REM s;
1139	#endif
1140	uint8_t padding[0x11100]; /* multiple of 64 */
1141	} rem;
1142
1143	union
1144	{
1145	#ifdef ___GIMInternal_h
1146	struct GIM s;
1147	#endif
1148	uint8_t padding[448]; /* multiple of 64 */
1149	} gim;
1150
1151	/* ---- begin small stuff ---- */
1152
1153	/** VM part. */
1154	union
1155	{
1156	#ifdef ___VMInternal_h
1157	struct VMINT s;
1158	#endif
1159	uint8_t padding[24]; /* multiple of 8 */
1160	} vm;
1161
1162	/** CFGM part. */
1163	union
1164	{
1165	#ifdef ___CFGMInternal_h
1166	struct CFGM s;
1167	#endif
1168	uint8_t padding[8]; /* multiple of 8 */
1169	} cfgm;
1170
1171
1172	/** Padding for aligning the cpu array on a page boundary. */
1173	uint8_t abAlignment2[3998];
1174
1175	/* ---- end small stuff ---- */
1176
1177	/** VMCPU array for the configured number of virtual CPUs.
1178	* Must be aligned on a page boundary for TLB hit reasons as well as
1179	* alignment of VMCPU members. */
1180	VMCPU aCpus[1];
1181	} VM;
1182
1183
1184	#ifdef IN_RC
1185	RT_C_DECLS_BEGIN
1186
1187	/** The VM structure.
1188	* This is imported from the VMMRCBuiltin module, i.e. it's a one of those magic
1189	* globals which we should avoid using.
1190	*/
1191	extern DECLIMPORT(VM) g_VM;
1192
1193	RT_C_DECLS_END
1194	#endif
1195
1196	/** @} */
1197
1198	#endif
1199

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source: vbox/trunk/include/VBox/vmm/vm.h@ 58283

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