vm.h@ 43756

Last change on this file since 43756 was 43387, checked in by vboxsync, 12 years ago
VMM: HM cleanup.
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1	/** @file
2	* VM - The Virtual Machine, data.
3	*/
4
5	/*
6	* Copyright (C) 2006-2012 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	* @{
46	*/
47
48	/**
49	* The state of a Virtual CPU.
50	*
51	* The basic state indicated here is whether the CPU has been started or not. In
52	* addition, there are sub-states when started for assisting scheduling (GVMM
53	* mostly).
54	*
55	* The transition out of the STOPPED state is done by a vmR3PowerOn.
56	* The transition back to the STOPPED state is done by vmR3PowerOff.
57	*
58	* (Alternatively we could let vmR3PowerOn start CPU 0 only and let the SPIP
59	* handling switch on the other CPUs. Then vmR3Reset would stop all but CPU 0.)
60	*/
61	typedef enum VMCPUSTATE
62	{
63	/** The customary invalid zero. */
64	VMCPUSTATE_INVALID = 0,
65
66	/** Virtual CPU has not yet been started. */
67	VMCPUSTATE_STOPPED,
68
69	/** CPU started. */
70	VMCPUSTATE_STARTED,
71	/** Executing guest code and can be poked. */
72	VMCPUSTATE_STARTED_EXEC,
73	/** Executing guest code in the recompiler. */
74	VMCPUSTATE_STARTED_EXEC_REM,
75	/** Halted. */
76	VMCPUSTATE_STARTED_HALTED,
77
78	/** The end of valid virtual CPU states. */
79	VMCPUSTATE_END,
80
81	/** Ensure 32-bit type. */
82	VMCPUSTATE_32BIT_HACK = 0x7fffffff
83	} VMCPUSTATE;
84
85
86	/**
87	* Per virtual CPU data.
88	*/
89	typedef struct VMCPU
90	{
91	/** Per CPU forced action.
92	* See the VMCPU_FF_* \#defines. Updated atomically. */
93	uint32_t volatile fLocalForcedActions; /* 0 */
94	/** The CPU state. */
95	VMCPUSTATE volatile enmState; /* 4 */
96
97	/** Pointer to the ring-3 UVMCPU structure. */
98	PUVMCPU pUVCpu; /* 8 */
99	/** Ring-3 Host Context VM Pointer. */
100	PVMR3 pVMR3; /* 16 / 12 */
101	/** Ring-0 Host Context VM Pointer. */
102	PVMR0 pVMR0; /* 24 / 16 */
103	/** Raw-mode Context VM Pointer. */
104	PVMRC pVMRC; /* 32 / 20 */
105	/** The CPU ID.
106	* This is the index into the VM::aCpu array. */
107	VMCPUID idCpu; /* 36 / 24 */
108	/** The native thread handle. */
109	RTNATIVETHREAD hNativeThread; /* 40 / 28 */
110	/** The native R0 thread handle. (different from the R3 handle!) */
111	RTNATIVETHREAD hNativeThreadR0; /* 48 / 32 */
112	/** Which host CPU ID is this EMT running on.
113	* Only valid when in RC or HMR0 with scheduling disabled. */
114	RTCPUID volatile idHostCpu; /* 56 / 36 */
115
116	/** Trace groups enable flags. */
117	uint32_t fTraceGroups; /* 60 / 40 */
118	/** Align the structures below bit on a 64-byte boundary and make sure it starts
119	* at the same offset in both 64-bit and 32-bit builds.
120	*
121	* @remarks The alignments of the members that are larger than 48 bytes should be
122	* 64-byte for cache line reasons. structs containing small amounts of
123	* data could be lumped together at the end with a < 64 byte padding
124	* following it (to grow into and align the struct size).
125	* */
126	uint8_t abAlignment1[HC_ARCH_BITS == 64 ? 60 : 16+64];
127	/** State data for use by ad hoc profiling. */
128	uint32_t uAdHoc;
129	/** Profiling samples for use by ad hoc profiling. */
130	STAMPROFILEADV aStatAdHoc[8]; /* size: 408 = 320 /
131
132	/** CPUM part. */
133	union
134	{
135	#ifdef ___CPUMInternal_h
136	struct CPUMCPU s;
137	#endif
138	uint8_t padding[3584]; /* multiple of 64 */
139	} cpum;
140
141	/** HM part. */
142	union
143	{
144	#ifdef ___HMInternal_h
145	struct HMCPU s;
146	#endif
147	uint8_t padding[5376]; /* multiple of 64 */
148	} hm;
149
150	/** EM part. */
151	union
152	{
153	#ifdef ___EMInternal_h
154	struct EMCPU s;
155	#endif
156	uint8_t padding[1472]; /* multiple of 64 */
157	} em;
158
159	/** IEM part. */
160	union
161	{
162	#ifdef ___IEMInternal_h
163	struct IEMCPU s;
164	#endif
165	uint8_t padding[3072]; /* multiple of 64 */
166	} iem;
167
168	/** TRPM part. */
169	union
170	{
171	#ifdef ___TRPMInternal_h
172	struct TRPMCPU s;
173	#endif
174	uint8_t padding[128]; /* multiple of 64 */
175	} trpm;
176
177	/** TM part. */
178	union
179	{
180	#ifdef ___TMInternal_h
181	struct TMCPU s;
182	#endif
183	uint8_t padding[384]; /* multiple of 64 */
184	} tm;
185
186	/** VMM part. */
187	union
188	{
189	#ifdef ___VMMInternal_h
190	struct VMMCPU s;
191	#endif
192	uint8_t padding[640]; /* multiple of 64 */
193	} vmm;
194
195	/** PDM part. */
196	union
197	{
198	#ifdef ___PDMInternal_h
199	struct PDMCPU s;
200	#endif
201	uint8_t padding[128]; /* multiple of 64 */
202	} pdm;
203
204	/** IOM part. */
205	union
206	{
207	#ifdef ___IOMInternal_h
208	struct IOMCPU s;
209	#endif
210	uint8_t padding[512]; /* multiple of 64 */
211	} iom;
212
213	/** DBGF part.
214	* @todo Combine this with other tiny structures. */
215	union
216	{
217	#ifdef ___DBGFInternal_h
218	struct DBGFCPU s;
219	#endif
220	uint8_t padding[64]; /* multiple of 64 */
221	} dbgf;
222
223	/** Align the following members on page boundary. */
224	uint8_t abAlignment2[1024 - 320 - 128];
225
226	/** PGM part. */
227	union
228	{
229	#ifdef ___PGMInternal_h
230	struct PGMCPU s;
231	#endif
232	uint8_t padding[4096]; /* multiple of 4096 */
233	} pgm;
234
235	} VMCPU;
236
237
238	#ifndef VBOX_FOR_DTRACE_LIB
239
240	/** @name Operations on VMCPU::enmState
241	* @{ */
242	/** Gets the VMCPU state. */
243	#define VMCPU_GET_STATE(pVCpu) ( (pVCpu)->enmState )
244	/** Sets the VMCPU state. */
245	#define VMCPU_SET_STATE(pVCpu, enmNewState) \
246	ASMAtomicWriteU32((uint32_t volatile *)&(pVCpu)->enmState, (enmNewState))
247	/** Cmpares and sets the VMCPU state. */
248	#define VMCPU_CMPXCHG_STATE(pVCpu, enmNewState, enmOldState) \
249	ASMAtomicCmpXchgU32((uint32_t volatile *)&(pVCpu)->enmState, (enmNewState), (enmOldState))
250	/** Checks the VMCPU state. */
251	#ifdef VBOX_STRICT
252	# define VMCPU_ASSERT_STATE(pVCpu, enmExpectedState) \
253	do { \
254	VMCPUSTATE enmState = VMCPU_GET_STATE(pVCpu); \
255	AssertMsg(enmState == (enmExpectedState), \
256	("enmState=%d enmExpectedState=%d idCpu=%u\n", \
257	enmState, enmExpectedState, (pVCpu)->idCpu)); \
258	} while (0)
259	#else
260	# define VMCPU_ASSERT_STATE(pVCpu, enmExpectedState) do { } while (0)
261	#endif
262	/** Tests if the state means that the CPU is started. */
263	#define VMCPUSTATE_IS_STARTED(enmState) ( (enmState) > VMCPUSTATE_STOPPED )
264	/** Tests if the state means that the CPU is stopped. */
265	#define VMCPUSTATE_IS_STOPPED(enmState) ( (enmState) == VMCPUSTATE_STOPPED )
266	/** @} */
267
268
269	/** The name of the Guest Context VMM Core module. */
270	#define VMMGC_MAIN_MODULE_NAME "VMMGC.gc"
271	/** The name of the Ring 0 Context VMM Core module. */
272	#define VMMR0_MAIN_MODULE_NAME "VMMR0.r0"
273
274	/** VM Forced Action Flags.
275	*
276	* Use the VM_FF_SET() and VM_FF_CLEAR() macros to change the force
277	* action mask of a VM.
278	*
279	* @{
280	*/
281	/** The virtual sync clock has been stopped, go to TM until it has been
282	* restarted... */
283	#define VM_FF_TM_VIRTUAL_SYNC RT_BIT_32(2)
284	/** PDM Queues are pending. */
285	#define VM_FF_PDM_QUEUES RT_BIT_32(VM_FF_PDM_QUEUES_BIT)
286	/** The bit number for VM_FF_PDM_QUEUES. */
287	#define VM_FF_PDM_QUEUES_BIT 3
288	/** PDM DMA transfers are pending. */
289	#define VM_FF_PDM_DMA RT_BIT_32(VM_FF_PDM_DMA_BIT)
290	/** The bit number for VM_FF_PDM_DMA. */
291	#define VM_FF_PDM_DMA_BIT 4
292	/** This action forces the VM to call DBGF so DBGF can service debugger
293	* requests in the emulation thread.
294	* This action flag stays asserted till DBGF clears it.*/
295	#define VM_FF_DBGF RT_BIT_32(VM_FF_DBGF_BIT)
296	/** The bit number for VM_FF_DBGF. */
297	#define VM_FF_DBGF_BIT 8
298	/** This action forces the VM to service pending requests from other
299	* thread or requests which must be executed in another context. */
300	#define VM_FF_REQUEST RT_BIT_32(9)
301	/** Check for VM state changes and take appropriate action. */
302	#define VM_FF_CHECK_VM_STATE RT_BIT_32(VM_FF_CHECK_VM_STATE_BIT)
303	/** The bit number for VM_FF_CHECK_VM_STATE. */
304	#define VM_FF_CHECK_VM_STATE_BIT 10
305	/** Reset the VM. (postponed) */
306	#define VM_FF_RESET RT_BIT_32(VM_FF_RESET_BIT)
307	/** The bit number for VM_FF_RESET. */
308	#define VM_FF_RESET_BIT 11
309	/** EMT rendezvous in VMM. */
310	#define VM_FF_EMT_RENDEZVOUS RT_BIT_32(VM_FF_EMT_RENDEZVOUS_BIT)
311	/** The bit number for VM_FF_EMT_RENDEZVOUS. */
312	#define VM_FF_EMT_RENDEZVOUS_BIT 12
313
314	/** PGM needs to allocate handy pages. */
315	#define VM_FF_PGM_NEED_HANDY_PAGES RT_BIT_32(18)
316	/** PGM is out of memory.
317	* Abandon all loops and code paths which can be resumed and get up to the EM
318	* loops. */
319	#define VM_FF_PGM_NO_MEMORY RT_BIT_32(19)
320	/** PGM is about to perform a lightweight pool flush
321	* Guest SMP: all EMT threads should return to ring 3
322	*/
323	#define VM_FF_PGM_POOL_FLUSH_PENDING RT_BIT_32(20)
324	/** REM needs to be informed about handler changes. */
325	#define VM_FF_REM_HANDLER_NOTIFY RT_BIT_32(VM_FF_REM_HANDLER_NOTIFY_BIT)
326	/** The bit number for VM_FF_REM_HANDLER_NOTIFY. */
327	#define VM_FF_REM_HANDLER_NOTIFY_BIT 29
328	/** Suspend the VM - debug only. */
329	#define VM_FF_DEBUG_SUSPEND RT_BIT_32(31)
330
331
332	/** This action forces the VM to check any pending interrups on the APIC. */
333	#define VMCPU_FF_INTERRUPT_APIC RT_BIT_32(0)
334	/** This action forces the VM to check any pending interrups on the PIC. */
335	#define VMCPU_FF_INTERRUPT_PIC RT_BIT_32(1)
336	/** This action forces the VM to schedule and run pending timer (TM).
337	* @remarks Don't move - PATM compatibility. */
338	#define VMCPU_FF_TIMER RT_BIT_32(2)
339	/** This action forces the VM to check any pending NMIs. */
340	#define VMCPU_FF_INTERRUPT_NMI_BIT 3
341	#define VMCPU_FF_INTERRUPT_NMI RT_BIT_32(VMCPU_FF_INTERRUPT_NMI_BIT)
342	/** This action forces the VM to check any pending SMIs. */
343	#define VMCPU_FF_INTERRUPT_SMI_BIT 4
344	#define VMCPU_FF_INTERRUPT_SMI RT_BIT_32(VMCPU_FF_INTERRUPT_SMI_BIT)
345	/** PDM critical section unlocking is pending, process promptly upon return to R3. */
346	#define VMCPU_FF_PDM_CRITSECT RT_BIT_32(5)
347	/** This action forces the VM to service pending requests from other
348	* thread or requests which must be executed in another context. */
349	#define VMCPU_FF_REQUEST RT_BIT_32(9)
350	/** This action forces the VM to resync the page tables before going
351	* back to execute guest code. (GLOBAL FLUSH) */
352	#define VMCPU_FF_PGM_SYNC_CR3 RT_BIT_32(16)
353	/** Same as VM_FF_PGM_SYNC_CR3 except that global pages can be skipped.
354	* (NON-GLOBAL FLUSH) */
355	#define VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL RT_BIT_32(17)
356	/** Check for pending TLB shootdown actions.
357	* Consumer: HM
358	* @todo rename to VMCPU_FF_HM_TLB_SHOOTDOWN */
359	#define VMCPU_FF_TLB_SHOOTDOWN RT_BIT_32(18)
360	/** Check for pending TLB flush action.
361	* Consumer: HM
362	* @todo rename to VMCPU_FF_HM_TLB_FLUSH */
363	#define VMCPU_FF_TLB_FLUSH RT_BIT_32(VMCPU_FF_TLB_FLUSH_BIT)
364	/** The bit number for VMCPU_FF_TLB_FLUSH. */
365	#define VMCPU_FF_TLB_FLUSH_BIT 19
366	/** Check the interrupt and trap gates */
367	#define VMCPU_FF_TRPM_SYNC_IDT RT_BIT_32(20)
368	/** Check Guest's TSS ring 0 stack */
369	#define VMCPU_FF_SELM_SYNC_TSS RT_BIT_32(21)
370	/** Check Guest's GDT table */
371	#define VMCPU_FF_SELM_SYNC_GDT RT_BIT_32(22)
372	/** Check Guest's LDT table */
373	#define VMCPU_FF_SELM_SYNC_LDT RT_BIT_32(23)
374	/** Inhibit interrupts pending. See EMGetInhibitInterruptsPC(). */
375	#define VMCPU_FF_INHIBIT_INTERRUPTS RT_BIT_32(24)
376	/** CSAM needs to scan the page that's being executed */
377	#define VMCPU_FF_CSAM_SCAN_PAGE RT_BIT_32(26)
378	/** CSAM needs to do some homework. */
379	#define VMCPU_FF_CSAM_PENDING_ACTION RT_BIT_32(27)
380	/** Force return to Ring-3. */
381	#define VMCPU_FF_TO_R3 RT_BIT_32(28)
382
383	/** Externally VM forced actions. Used to quit the idle/wait loop. */
384	#define VM_FF_EXTERNAL_SUSPENDED_MASK (VM_FF_CHECK_VM_STATE \| VM_FF_DBGF \| VM_FF_REQUEST \| VM_FF_EMT_RENDEZVOUS)
385	/** Externally VMCPU forced actions. Used to quit the idle/wait loop. */
386	#define VMCPU_FF_EXTERNAL_SUSPENDED_MASK (VMCPU_FF_REQUEST)
387
388	/** Externally forced VM actions. Used to quit the idle/wait loop. */
389	#define VM_FF_EXTERNAL_HALTED_MASK ( VM_FF_CHECK_VM_STATE \| VM_FF_DBGF \| VM_FF_REQUEST \
390	\| VM_FF_PDM_QUEUES \| VM_FF_PDM_DMA \| VM_FF_EMT_RENDEZVOUS)
391	/** Externally forced VMCPU actions. Used to quit the idle/wait loop. */
392	#define VMCPU_FF_EXTERNAL_HALTED_MASK (VMCPU_FF_INTERRUPT_APIC \| VMCPU_FF_INTERRUPT_PIC \| VMCPU_FF_REQUEST \| VMCPU_FF_TIMER)
393
394	/** High priority VM pre-execution actions. */
395	#define VM_FF_HIGH_PRIORITY_PRE_MASK ( VM_FF_CHECK_VM_STATE \| VM_FF_DBGF \| VM_FF_TM_VIRTUAL_SYNC \
396	\| VM_FF_DEBUG_SUSPEND \| VM_FF_PGM_NEED_HANDY_PAGES \| VM_FF_PGM_NO_MEMORY \| VM_FF_EMT_RENDEZVOUS)
397	/** High priority VMCPU pre-execution actions. */
398	#define VMCPU_FF_HIGH_PRIORITY_PRE_MASK ( VMCPU_FF_TIMER \| VMCPU_FF_INTERRUPT_APIC \| VMCPU_FF_INTERRUPT_PIC \| VMCPU_FF_PGM_SYNC_CR3 \
399	\| VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL \| VMCPU_FF_SELM_SYNC_TSS \| VMCPU_FF_TRPM_SYNC_IDT \
400	\| VMCPU_FF_SELM_SYNC_GDT \| VMCPU_FF_SELM_SYNC_LDT \| VMCPU_FF_INHIBIT_INTERRUPTS)
401
402	/** High priority VM pre raw-mode execution mask. */
403	#define VM_FF_HIGH_PRIORITY_PRE_RAW_MASK (VM_FF_PGM_NEED_HANDY_PAGES \| VM_FF_PGM_NO_MEMORY)
404	/** High priority VMCPU pre raw-mode execution mask. */
405	#define VMCPU_FF_HIGH_PRIORITY_PRE_RAW_MASK ( VMCPU_FF_PGM_SYNC_CR3 \| VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL \| VMCPU_FF_SELM_SYNC_TSS \| VMCPU_FF_TRPM_SYNC_IDT \
406	\| VMCPU_FF_SELM_SYNC_GDT \| VMCPU_FF_SELM_SYNC_LDT \| VMCPU_FF_INHIBIT_INTERRUPTS)
407
408	/** High priority post-execution actions. */
409	#define VM_FF_HIGH_PRIORITY_POST_MASK (VM_FF_PGM_NO_MEMORY)
410	/** High priority post-execution actions. */
411	#define VMCPU_FF_HIGH_PRIORITY_POST_MASK (VMCPU_FF_PDM_CRITSECT\|VMCPU_FF_CSAM_PENDING_ACTION)
412
413	/** Normal priority VM post-execution actions. */
414	#define VM_FF_NORMAL_PRIORITY_POST_MASK ( VM_FF_CHECK_VM_STATE \| VM_FF_DBGF \| VM_FF_RESET \
415	\| VM_FF_PGM_NO_MEMORY \| VM_FF_EMT_RENDEZVOUS)
416	/** Normal priority VMCPU post-execution actions. */
417	#define VMCPU_FF_NORMAL_PRIORITY_POST_MASK (VMCPU_FF_CSAM_SCAN_PAGE)
418
419	/** Normal priority VM actions. */
420	#define VM_FF_NORMAL_PRIORITY_MASK (VM_FF_REQUEST \| VM_FF_PDM_QUEUES \| VM_FF_PDM_DMA \| VM_FF_REM_HANDLER_NOTIFY \| VM_FF_EMT_RENDEZVOUS)
421	/** Normal priority VMCPU actions. */
422	#define VMCPU_FF_NORMAL_PRIORITY_MASK (VMCPU_FF_REQUEST)
423
424	/** Flags to clear before resuming guest execution. */
425	#define VMCPU_FF_RESUME_GUEST_MASK (VMCPU_FF_TO_R3)
426
427	/** VM Flags that cause the HM loops to go back to ring-3. */
428	#define VM_FF_HM_TO_R3_MASK (VM_FF_TM_VIRTUAL_SYNC \| VM_FF_PGM_NEED_HANDY_PAGES \| VM_FF_PGM_NO_MEMORY \| VM_FF_PDM_QUEUES \| VM_FF_EMT_RENDEZVOUS)
429	/** VMCPU Flags that cause the HM loops to go back to ring-3. */
430	#define VMCPU_FF_HM_TO_R3_MASK (VMCPU_FF_TO_R3 \| VMCPU_FF_TIMER \| VMCPU_FF_PDM_CRITSECT)
431
432	/** All the forced VM flags. */
433	#define VM_FF_ALL_MASK (~0U)
434	/** All the forced VMCPU flags. */
435	#define VMCPU_FF_ALL_MASK (~0U)
436
437	/** All the forced VM flags except those related to raw-mode and hardware
438	* assisted execution. */
439	#define VM_FF_ALL_REM_MASK (~(VM_FF_HIGH_PRIORITY_PRE_RAW_MASK) \| VM_FF_PGM_NO_MEMORY)
440	/** All the forced VMCPU flags except those related to raw-mode and hardware
441	* assisted execution. */
442	#define VMCPU_FF_ALL_REM_MASK (~(VMCPU_FF_HIGH_PRIORITY_PRE_RAW_MASK \| VMCPU_FF_CSAM_PENDING_ACTION \| VMCPU_FF_PDM_CRITSECT \| VMCPU_FF_TLB_FLUSH \| VMCPU_FF_TLB_SHOOTDOWN))
443
444	/** @} */
445
446	/** @def VM_FF_SET
447	* Sets a force action flag.
448	*
449	* @param pVM VM Handle.
450	* @param fFlag The flag to set.
451	*/
452	#if 1
453	# define VM_FF_SET(pVM, fFlag) ASMAtomicOrU32(&(pVM)->fGlobalForcedActions, (fFlag))
454	#else
455	# define VM_FF_SET(pVM, fFlag) \
456	do { ASMAtomicOrU32(&(pVM)->fGlobalForcedActions, (fFlag)); \
457	RTLogPrintf("VM_FF_SET : %08x %s - %s(%d) %s\n", (pVM)->fGlobalForcedActions, #fFlag, __FILE__, __LINE__, __FUNCTION__); \
458	} while (0)
459	#endif
460
461	/** @def VMCPU_FF_SET
462	* Sets a force action flag for the given VCPU.
463	*
464	* @param pVCpu VMCPU Handle.
465	* @param fFlag The flag to set.
466	*/
467	#define VMCPU_FF_SET(pVCpu, fFlag) ASMAtomicOrU32(&(pVCpu)->fLocalForcedActions, (fFlag))
468
469	/** @def VM_FF_CLEAR
470	* Clears a force action flag.
471	*
472	* @param pVM VM Handle.
473	* @param fFlag The flag to clear.
474	*/
475	#if 1
476	# define VM_FF_CLEAR(pVM, fFlag) ASMAtomicAndU32(&(pVM)->fGlobalForcedActions, ~(fFlag))
477	#else
478	# define VM_FF_CLEAR(pVM, fFlag) \
479	do { ASMAtomicAndU32(&(pVM)->fGlobalForcedActions, ~(fFlag)); \
480	RTLogPrintf("VM_FF_CLEAR: %08x %s - %s(%d) %s\n", (pVM)->fGlobalForcedActions, #fFlag, __FILE__, __LINE__, __FUNCTION__); \
481	} while (0)
482	#endif
483
484	/** @def VMCPU_FF_CLEAR
485	* Clears a force action flag for the given VCPU.
486	*
487	* @param pVCpu VMCPU Handle.
488	* @param fFlag The flag to clear.
489	*/
490	#define VMCPU_FF_CLEAR(pVCpu, fFlag) ASMAtomicAndU32(&(pVCpu)->fLocalForcedActions, ~(fFlag))
491
492	/** @def VM_FF_ISSET
493	* Checks if a force action flag is set.
494	*
495	* @param pVM VM Handle.
496	* @param fFlag The flag to check.
497	*/
498	#define VM_FF_IS_SET(pVM, fFlag) (((pVM)->fGlobalForcedActions & (fFlag)) == (fFlag))
499	/** @deprecated */
500	#define VM_FF_ISSET(pVM, fFlag) VM_FF_IS_SET(pVM, fFlag)
501
502	/** @def VMCPU_FF_ISSET
503	* Checks if a force action flag is set for the given VCPU.
504	*
505	* @param pVCpu VMCPU Handle.
506	* @param fFlag The flag to check.
507	*/
508	#define VMCPU_FF_IS_SET(pVCpu, fFlag) (((pVCpu)->fLocalForcedActions & (fFlag)) == (fFlag))
509	/** @deprecated */
510	#define VMCPU_FF_ISSET(pVCpu, fFlag) VMCPU_FF_IS_SET(pVCpu, fFlag)
511
512	/** @def VM_FF_ISPENDING
513	* Checks if one or more force action in the specified set is pending.
514	*
515	* @param pVM VM Handle.
516	* @param fFlags The flags to check for.
517	*/
518	#define VM_FF_IS_PENDING(pVM, fFlags) ((pVM)->fGlobalForcedActions & (fFlags))
519	/** @deprecated */
520	#define VM_FF_ISPENDING(pVM, fFlags) VM_FF_IS_PENDING(pVM, fFlags)
521
522	/** @def VM_FF_TESTANDCLEAR
523	* Checks if one (!) force action in the specified set is pending and clears it atomically
524	*
525	* @returns true if the bit was set.
526	* @returns false if the bit was clear.
527	* @param pVM VM Handle.
528	* @param iBit Bit position to check and clear
529	*/
530	#define VM_FF_TEST_AND_CLEAR(pVM, iBit) (ASMAtomicBitTestAndClear(&(pVM)->fGlobalForcedActions, iBit##_BIT))
531	/** @deprecated */
532	#define VM_FF_TESTANDCLEAR(pVM, iBit) (ASMAtomicBitTestAndClear(&(pVM)->fGlobalForcedActions, iBit##_BIT))
533
534	/** @def VMCPU_FF_TESTANDCLEAR
535	* Checks if one (!) force action in the specified set is pending and clears it atomically
536	*
537	* @returns true if the bit was set.
538	* @returns false if the bit was clear.
539	* @param pVCpu VMCPU Handle.
540	* @param iBit Bit position to check and clear
541	*/
542	#define VMCPU_FF_TEST_AND_CLEAR(pVCpu, iBit) (ASMAtomicBitTestAndClear(&(pVCpu)->fLocalForcedActions, iBit##_BIT))
543	/** @deprecated */
544	#define VMCPU_FF_TESTANDCLEAR(pVCpu, iBit) (ASMAtomicBitTestAndClear(&(pVCpu)->fLocalForcedActions, iBit##_BIT))
545
546	/** @def VMCPU_FF_ISPENDING
547	* Checks if one or more force action in the specified set is pending for the given VCPU.
548	*
549	* @param pVCpu VMCPU Handle.
550	* @param fFlags The flags to check for.
551	*/
552	#define VMCPU_FF_IS_PENDING(pVCpu, fFlags) ((pVCpu)->fLocalForcedActions & (fFlags))
553	/** @deprecated */
554	#define VMCPU_FF_ISPENDING(pVCpu, fFlags) VMCPU_FF_IS_PENDING(pVCpu, fFlags)
555
556	/** @def VM_FF_ISPENDING
557	* Checks if one or more force action in the specified set is pending while one
558	* or more other ones are not.
559	*
560	* @param pVM VM Handle.
561	* @param fFlags The flags to check for.
562	* @param fExcpt The flags that should not be set.
563	*/
564	#define VM_FF_IS_PENDING_EXCEPT(pVM, fFlags, fExcpt) ( ((pVM)->fGlobalForcedActions & (fFlags)) && !((pVM)->fGlobalForcedActions & (fExcpt)) )
565
566	/** @def VMCPU_FF_IS_PENDING_EXCEPT
567	* Checks if one or more force action in the specified set is pending for the given
568	* VCPU while one or more other ones are not.
569	*
570	* @param pVCpu VMCPU Handle.
571	* @param fFlags The flags to check for.
572	* @param fExcpt The flags that should not be set.
573	*/
574	#define VMCPU_FF_IS_PENDING_EXCEPT(pVCpu, fFlags, fExcpt) ( ((pVCpu)->fLocalForcedActions & (fFlags)) && !((pVCpu)->fLocalForcedActions & (fExcpt)) )
575
576	/** @def VM_IS_EMT
577	* Checks if the current thread is the emulation thread (EMT).
578	*
579	* @remark The ring-0 variation will need attention if we expand the ring-0
580	* code to let threads other than EMT mess around with the VM.
581	*/
582	#ifdef IN_RC
583	# define VM_IS_EMT(pVM) true
584	#else
585	# define VM_IS_EMT(pVM) (VMMGetCpu(pVM) != NULL)
586	#endif
587
588	/** @def VMCPU_IS_EMT
589	* Checks if the current thread is the emulation thread (EMT) for the specified
590	* virtual CPU.
591	*/
592	#ifdef IN_RC
593	# define VMCPU_IS_EMT(pVCpu) true
594	#else
595	# define VMCPU_IS_EMT(pVCpu) ((pVCpu) && ((pVCpu) == VMMGetCpu((pVCpu)->CTX_SUFF(pVM))))
596	#endif
597
598	/** @def VM_ASSERT_EMT
599	* Asserts that the current thread IS the emulation thread (EMT).
600	*/
601	#ifdef IN_RC
602	# define VM_ASSERT_EMT(pVM) Assert(VM_IS_EMT(pVM))
603	#elif defined(IN_RING0)
604	# define VM_ASSERT_EMT(pVM) Assert(VM_IS_EMT(pVM))
605	#else
606	# define VM_ASSERT_EMT(pVM) \
607	AssertMsg(VM_IS_EMT(pVM), \
608	("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd\n", RTThreadNativeSelf(), VMR3GetVMCPUNativeThread(pVM)))
609	#endif
610
611	/** @def VMCPU_ASSERT_EMT
612	* Asserts that the current thread IS the emulation thread (EMT) of the
613	* specified virtual CPU.
614	*/
615	#ifdef IN_RC
616	# define VMCPU_ASSERT_EMT(pVCpu) Assert(VMCPU_IS_EMT(pVCpu))
617	#elif defined(IN_RING0)
618	# define VMCPU_ASSERT_EMT(pVCpu) Assert(VMCPU_IS_EMT(pVCpu))
619	#else
620	# define VMCPU_ASSERT_EMT(pVCpu) \
621	AssertMsg(VMCPU_IS_EMT(pVCpu), \
622	("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd idCpu=%#x\n", \
623	RTThreadNativeSelf(), (pVCpu)->hNativeThread, (pVCpu)->idCpu))
624	#endif
625
626	/** @def VM_ASSERT_EMT_RETURN
627	* Asserts that the current thread IS the emulation thread (EMT) and returns if it isn't.
628	*/
629	#ifdef IN_RC
630	# define VM_ASSERT_EMT_RETURN(pVM, rc) AssertReturn(VM_IS_EMT(pVM), (rc))
631	#elif defined(IN_RING0)
632	# define VM_ASSERT_EMT_RETURN(pVM, rc) AssertReturn(VM_IS_EMT(pVM), (rc))
633	#else
634	# define VM_ASSERT_EMT_RETURN(pVM, rc) \
635	AssertMsgReturn(VM_IS_EMT(pVM), \
636	("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd\n", RTThreadNativeSelf(), VMR3GetVMCPUNativeThread(pVM)), \
637	(rc))
638	#endif
639
640	/** @def VMCPU_ASSERT_EMT_RETURN
641	* Asserts that the current thread IS the emulation thread (EMT) and returns if it isn't.
642	*/
643	#ifdef IN_RC
644	# define VMCPU_ASSERT_EMT_RETURN(pVCpu, rc) AssertReturn(VMCPU_IS_EMT(pVCpu), (rc))
645	#elif defined(IN_RING0)
646	# define VMCPU_ASSERT_EMT_RETURN(pVCpu, rc) AssertReturn(VMCPU_IS_EMT(pVCpu), (rc))
647	#else
648	# define VMCPU_ASSERT_EMT_RETURN(pVCpu, rc) \
649	AssertMsg(VMCPU_IS_EMT(pVCpu), \
650	("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd idCpu=%#x\n", \
651	RTThreadNativeSelf(), (pVCpu)->hNativeThread, (pVCpu)->idCpu), \
652	(rc))
653	#endif
654
655	/** @def VMCPU_ASSERT_EMT_OR_GURU
656	* Asserts that the current thread IS the emulation thread (EMT) of the
657	* specified virtual CPU.
658	*/
659	#if defined(IN_RC) \|\| defined(IN_RING0)
660	# define VMCPU_ASSERT_EMT_OR_GURU(pVCpu) Assert( VMCPU_IS_EMT(pVCpu) \
661	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_GURU_MEDITATION \
662	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_GURU_MEDITATION_LS )
663	#else
664	# define VMCPU_ASSERT_EMT_OR_GURU(pVCpu) \
665	AssertMsg( VMCPU_IS_EMT(pVCpu) \
666	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_GURU_MEDITATION \
667	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_GURU_MEDITATION_LS, \
668	("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd idCpu=%#x\n", \
669	RTThreadNativeSelf(), (pVCpu)->hNativeThread, (pVCpu)->idCpu))
670	#endif
671
672	/** @def VMCPU_ASSERT_EMT_OR_NOT_RUNNING
673	* Asserts that the current thread IS the emulation thread (EMT) of the
674	* specified virtual CPU when the VM is running.
675	*/
676	#if defined(IN_RC) \|\| defined(IN_RING0)
677	# define VMCPU_ASSERT_EMT_OR_NOT_RUNNING(pVCpu) \
678	Assert( VMCPU_IS_EMT(pVCpu) \
679	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING \
680	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING_LS \
681	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING_FT )
682	#else
683	# define VMCPU_ASSERT_EMT_OR_NOT_RUNNING(pVCpu) \
684	AssertMsg( VMCPU_IS_EMT(pVCpu) \
685	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING \
686	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING_LS \
687	\|\| pVCpu->CTX_SUFF(pVM)->enmVMState == VMSTATE_RUNNING_FT, \
688	("Not emulation thread! Thread=%RTnthrd ThreadEMT=%RTnthrd idCpu=%#x\n", \
689	RTThreadNativeSelf(), (pVCpu)->hNativeThread, (pVCpu)->idCpu))
690	#endif
691
692	/** @def VM_ASSERT_EMT0
693	* Asserts that the current thread IS emulation thread \#0 (EMT0).
694	*/
695	#define VM_ASSERT_EMT0(pVM) VMCPU_ASSERT_EMT(&(pVM)->aCpus[0])
696
697	/** @def VM_ASSERT_EMT0_RETURN
698	* Asserts that the current thread IS emulation thread \#0 (EMT0) and returns if
699	* it isn't.
700	*/
701	#define VM_ASSERT_EMT0_RETURN(pVM, rc) VMCPU_ASSERT_EMT_RETURN(&(pVM)->aCpus[0], (rc))
702
703
704	/**
705	* Asserts that the current thread is NOT the emulation thread.
706	*/
707	#define VM_ASSERT_OTHER_THREAD(pVM) \
708	AssertMsg(!VM_IS_EMT(pVM), ("Not other thread!!\n"))
709
710
711	/** @def VM_ASSERT_STATE_RETURN
712	* Asserts a certain VM state.
713	*/
714	#define VM_ASSERT_STATE(pVM, _enmState) \
715	AssertMsg((pVM)->enmVMState == (_enmState), \
716	("state %s, expected %s\n", VMGetStateName((pVM)->enmVMState), VMGetStateName(_enmState)))
717
718	/** @def VM_ASSERT_STATE_RETURN
719	* Asserts a certain VM state and returns if it doesn't match.
720	*/
721	#define VM_ASSERT_STATE_RETURN(pVM, _enmState, rc) \
722	AssertMsgReturn((pVM)->enmVMState == (_enmState), \
723	("state %s, expected %s\n", VMGetStateName((pVM)->enmVMState), VMGetStateName(_enmState)), \
724	(rc))
725
726	/** @def VM_ASSERT_VALID_EXT_RETURN
727	* Asserts a the VM handle is valid for external access, i.e. not being
728	* destroy or terminated.
729	*/
730	#define VM_ASSERT_VALID_EXT_RETURN(pVM, rc) \
731	AssertMsgReturn( RT_VALID_ALIGNED_PTR(pVM, PAGE_SIZE) \
732	&& ( (unsigned)(pVM)->enmVMState < (unsigned)VMSTATE_DESTROYING \
733	\|\| ( (unsigned)(pVM)->enmVMState == (unsigned)VMSTATE_DESTROYING \
734	&& VM_IS_EMT(pVM))), \
735	("pVM=%p state %s\n", (pVM), RT_VALID_ALIGNED_PTR(pVM, PAGE_SIZE) \
736	? VMGetStateName(pVM->enmVMState) : ""), \
737	(rc))
738
739	/** @def VMCPU_ASSERT_VALID_EXT_RETURN
740	* Asserts a the VMCPU handle is valid for external access, i.e. not being
741	* destroy or terminated.
742	*/
743	#define VMCPU_ASSERT_VALID_EXT_RETURN(pVCpu, rc) \
744	AssertMsgReturn( RT_VALID_ALIGNED_PTR(pVCpu, 64) \
745	&& RT_VALID_ALIGNED_PTR((pVCpu)->CTX_SUFF(pVM), PAGE_SIZE) \
746	&& (unsigned)(pVCpu)->CTX_SUFF(pVM)->enmVMState < (unsigned)VMSTATE_DESTROYING, \
747	("pVCpu=%p pVM=%p state %s\n", (pVCpu), RT_VALID_ALIGNED_PTR(pVCpu, 64) ? (pVCpu)->CTX_SUFF(pVM) : NULL, \
748	RT_VALID_ALIGNED_PTR(pVCpu, 64) && RT_VALID_ALIGNED_PTR((pVCpu)->CTX_SUFF(pVM), PAGE_SIZE) \
749	? VMGetStateName((pVCpu)->pVMR3->enmVMState) : ""), \
750	(rc))
751
752	#endif /* !VBOX_FOR_DTRACE_LIB */
753
754
755
756	/** This is the VM structure.
757	*
758	* It contains (nearly?) all the VM data which have to be available in all
759	* contexts. Even if it contains all the data the idea is to use APIs not
760	* to modify all the members all around the place. Therefore we make use of
761	* unions to hide everything which isn't local to the current source module.
762	* This means we'll have to pay a little bit of attention when adding new
763	* members to structures in the unions and make sure to keep the padding sizes
764	* up to date.
765	*
766	* Run tstVMStructSize after update!
767	*/
768	typedef struct VM
769	{
770	/** The state of the VM.
771	* This field is read only to everyone except the VM and EM. */
772	VMSTATE volatile enmVMState;
773	/** Forced action flags.
774	* See the VM_FF_* \#defines. Updated atomically.
775	*/
776	volatile uint32_t fGlobalForcedActions;
777	/** Pointer to the array of page descriptors for the VM structure allocation. */
778	R3PTRTYPE(PSUPPAGE) paVMPagesR3;
779	/** Session handle. For use when calling SUPR0 APIs. */
780	PSUPDRVSESSION pSession;
781	/** Pointer to the ring-3 VM structure. */
782	PUVM pUVM;
783	/** Ring-3 Host Context VM Pointer. */
784	R3PTRTYPE(struct VM *) pVMR3;
785	/** Ring-0 Host Context VM Pointer. */
786	R0PTRTYPE(struct VM *) pVMR0;
787	/** Raw-mode Context VM Pointer. */
788	RCPTRTYPE(struct VM *) pVMRC;
789
790	/** The GVM VM handle. Only the GVM should modify this field. */
791	uint32_t hSelf;
792	/** Number of virtual CPUs. */
793	uint32_t cCpus;
794	/** CPU excution cap (1-100) */
795	uint32_t uCpuExecutionCap;
796
797	/** Size of the VM structure including the VMCPU array. */
798	uint32_t cbSelf;
799
800	/** Offset to the VMCPU array starting from beginning of this structure. */
801	uint32_t offVMCPU;
802
803	/**
804	* VMMSwitcher assembly entry point returning to host context.
805	*
806	* Depending on how the host handles the rc status given in @a eax, this may
807	* return and let the caller resume whatever it was doing prior to the call.
808	*
809	*
810	* @param eax The return code, register.
811	* @remark Assume interrupts disabled.
812	* @remark This method pointer lives here because TRPM needs it.
813	*/
814	RTRCPTR pfnVMMRCToHostAsm/(int32_t eax)/;
815
816	/**
817	* VMMSwitcher assembly entry point returning to host context without saving the
818	* raw-mode context (hyper) registers.
819	*
820	* Unlike pfnVMMRC2HCAsm, this will not return to the caller. Instead it
821	* expects the caller to save a RC context in CPUM where one might return if the
822	* return code indicate that this is possible.
823	*
824	* This method pointer lives here because TRPM needs it.
825	*
826	* @param eax The return code, register.
827	* @remark Assume interrupts disabled.
828	* @remark This method pointer lives here because TRPM needs it.
829	*/
830	RTRCPTR pfnVMMRCToHostAsmNoReturn/(int32_t eax)/;
831
832	/** @name Various items that are frequently accessed.
833	* @{ */
834	/** Whether to recompile user mode code or run it raw/hm. */
835	bool fRecompileUser;
836	/** Whether to recompile supervisor mode code or run it raw/hm. */
837	bool fRecompileSupervisor;
838	/** PATM enabled flag.
839	* This is placed here for performance reasons. */
840	bool fPATMEnabled;
841	/** CSAM enabled flag.
842	* This is placed here for performance reasons. */
843	bool fCSAMEnabled;
844	/** Hardware VM support is available and enabled.
845	* This is placed here for performance reasons. */
846	bool fHMEnabled;
847	/** Hardware VM support is required and non-optional.
848	* This is initialized together with the rest of the VM structure. */
849	bool fHwVirtExtForced;
850	/** Set when this VM is the master FT node. */
851	bool fFaultTolerantMaster;
852	/** Large page enabled flag. */
853	bool fUseLargePages;
854	/** @} */
855
856	/** Alignment padding.. */
857	uint32_t uPadding1;
858
859	/** @name Debugging
860	* @{ */
861	/** Raw-mode Context VM Pointer. */
862	RCPTRTYPE(RTTRACEBUF) hTraceBufRC;
863	/** Ring-3 Host Context VM Pointer. */
864	R3PTRTYPE(RTTRACEBUF) hTraceBufR3;
865	/** Ring-0 Host Context VM Pointer. */
866	R0PTRTYPE(RTTRACEBUF) hTraceBufR0;
867	/** @} */
868
869	#if HC_ARCH_BITS == 32
870	/** Alignment padding.. */
871	uint32_t uPadding2;
872	#endif
873
874	/** @name Switcher statistics (remove)
875	* @{ */
876	/** Profiling the total time from Qemu to GC. */
877	STAMPROFILEADV StatTotalQemuToGC;
878	/** Profiling the total time from GC to Qemu. */
879	STAMPROFILEADV StatTotalGCToQemu;
880	/** Profiling the total time spent in GC. */
881	STAMPROFILEADV StatTotalInGC;
882	/** Profiling the total time spent not in Qemu. */
883	STAMPROFILEADV StatTotalInQemu;
884	/** Profiling the VMMSwitcher code for going to GC. */
885	STAMPROFILEADV StatSwitcherToGC;
886	/** Profiling the VMMSwitcher code for going to HC. */
887	STAMPROFILEADV StatSwitcherToHC;
888	STAMPROFILEADV StatSwitcherSaveRegs;
889	STAMPROFILEADV StatSwitcherSysEnter;
890	STAMPROFILEADV StatSwitcherDebug;
891	STAMPROFILEADV StatSwitcherCR0;
892	STAMPROFILEADV StatSwitcherCR4;
893	STAMPROFILEADV StatSwitcherJmpCR3;
894	STAMPROFILEADV StatSwitcherRstrRegs;
895	STAMPROFILEADV StatSwitcherLgdt;
896	STAMPROFILEADV StatSwitcherLidt;
897	STAMPROFILEADV StatSwitcherLldt;
898	STAMPROFILEADV StatSwitcherTSS;
899	/** @} */
900
901	/** Padding - the unions must be aligned on a 64 bytes boundary and the unions
902	* must start at the same offset on both 64-bit and 32-bit hosts. */
903	uint8_t abAlignment3[(HC_ARCH_BITS == 32 ? 24 : 0) + 40];
904
905	/** CPUM part. */
906	union
907	{
908	#ifdef ___CPUMInternal_h
909	struct CPUM s;
910	#endif
911	uint8_t padding[1536]; /* multiple of 64 */
912	} cpum;
913
914	/** VMM part. */
915	union
916	{
917	#ifdef ___VMMInternal_h
918	struct VMM s;
919	#endif
920	uint8_t padding[1600]; /* multiple of 64 */
921	} vmm;
922
923	/** PGM part. */
924	union
925	{
926	#ifdef ___PGMInternal_h
927	struct PGM s;
928	#endif
929	uint8_t padding[40962+6080]; / multiple of 64 */
930	} pgm;
931
932	/** HM part. */
933	union
934	{
935	#ifdef ___HMInternal_h
936	struct HM s;
937	#endif
938	uint8_t padding[5376]; /* multiple of 64 */
939	} hm;
940
941	/** TRPM part. */
942	union
943	{
944	#ifdef ___TRPMInternal_h
945	struct TRPM s;
946	#endif
947	uint8_t padding[5248]; /* multiple of 64 */
948	} trpm;
949
950	/** SELM part. */
951	union
952	{
953	#ifdef ___SELMInternal_h
954	struct SELM s;
955	#endif
956	uint8_t padding[768]; /* multiple of 64 */
957	} selm;
958
959	/** MM part. */
960	union
961	{
962	#ifdef ___MMInternal_h
963	struct MM s;
964	#endif
965	uint8_t padding[192]; /* multiple of 64 */
966	} mm;
967
968	/** PDM part. */
969	union
970	{
971	#ifdef ___PDMInternal_h
972	struct PDM s;
973	#endif
974	uint8_t padding[1920]; /* multiple of 64 */
975	} pdm;
976
977	/** IOM part. */
978	union
979	{
980	#ifdef ___IOMInternal_h
981	struct IOM s;
982	#endif
983	uint8_t padding[832]; /* multiple of 64 */
984	} iom;
985
986	/** PATM part. */
987	union
988	{
989	#ifdef ___PATMInternal_h
990	struct PATM s;
991	#endif
992	uint8_t padding[768]; /* multiple of 64 */
993	} patm;
994
995	/** CSAM part. */
996	union
997	{
998	#ifdef ___CSAMInternal_h
999	struct CSAM s;
1000	#endif
1001	uint8_t padding[1088]; /* multiple of 64 */
1002	} csam;
1003
1004	/** EM part. */
1005	union
1006	{
1007	#ifdef ___EMInternal_h
1008	struct EM s;
1009	#endif
1010	uint8_t padding[256]; /* multiple of 64 */
1011	} em;
1012
1013	/** TM part. */
1014	union
1015	{
1016	#ifdef ___TMInternal_h
1017	struct TM s;
1018	#endif
1019	uint8_t padding[2432]; /* multiple of 64 */
1020	} tm;
1021
1022	/** DBGF part. */
1023	union
1024	{
1025	#ifdef ___DBGFInternal_h
1026	struct DBGF s;
1027	#endif
1028	uint8_t padding[2368]; /* multiple of 64 */
1029	} dbgf;
1030
1031	/** SSM part. */
1032	union
1033	{
1034	#ifdef ___SSMInternal_h
1035	struct SSM s;
1036	#endif
1037	uint8_t padding[128]; /* multiple of 64 */
1038	} ssm;
1039
1040	/** FTM part. */
1041	union
1042	{
1043	#ifdef ___FTMInternal_h
1044	struct FTM s;
1045	#endif
1046	uint8_t padding[512]; /* multiple of 64 */
1047	} ftm;
1048
1049	/** REM part. */
1050	union
1051	{
1052	#ifdef ___REMInternal_h
1053	struct REM s;
1054	#endif
1055	uint8_t padding[0x11100]; /* multiple of 64 */
1056	} rem;
1057
1058	/* ---- begin small stuff ---- */
1059
1060	/** VM part. */
1061	union
1062	{
1063	#ifdef ___VMInternal_h
1064	struct VMINT s;
1065	#endif
1066	uint8_t padding[24]; /* multiple of 8 */
1067	} vm;
1068
1069	/** CFGM part. */
1070	union
1071	{
1072	#ifdef ___CFGMInternal_h
1073	struct CFGM s;
1074	#endif
1075	uint8_t padding[8]; /* multiple of 8 */
1076	} cfgm;
1077
1078
1079	/** Padding for aligning the cpu array on a page boundary. */
1080	uint8_t abAlignment2[542];
1081
1082	/* ---- end small stuff ---- */
1083
1084	/** VMCPU array for the configured number of virtual CPUs.
1085	* Must be aligned on a page boundary for TLB hit reasons as well as
1086	* alignment of VMCPU members. */
1087	VMCPU aCpus[1];
1088	} VM;
1089
1090
1091	#ifdef IN_RC
1092	RT_C_DECLS_BEGIN
1093
1094	/** The VM structure.
1095	* This is imported from the VMMGCBuiltin module, i.e. it's a one
1096	* of those magic globals which we should avoid using.
1097	*/
1098	extern DECLIMPORT(VM) g_VM;
1099
1100	RT_C_DECLS_END
1101	#endif
1102
1103	/** @} */
1104
1105	#endif
1106

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source: vbox/trunk/include/VBox/vmm/vm.h@ 43756

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