VMM.cpp@ 94018

Last change on this file since 94018 was 93744, checked in by vboxsync, 3 years ago
VMM: More arm64 adjustments. bugref:9898
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1	/* $Id: VMM.cpp 93744 2022-02-14 21:00:26Z vboxsync $ */
2	/** @file
3	* VMM - The Virtual Machine Monitor Core.
4	*/
5
6	/*
7	* Copyright (C) 2006-2022 Oracle Corporation
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
18	//#define NO_SUPCALLR0VMM
19
20	/** @page pg_vmm VMM - The Virtual Machine Monitor
21	*
22	* The VMM component is two things at the moment, it's a component doing a few
23	* management and routing tasks, and it's the whole virtual machine monitor
24	* thing. For hysterical reasons, it is not doing all the management that one
25	* would expect, this is instead done by @ref pg_vm. We'll address this
26	* misdesign eventually, maybe.
27	*
28	* VMM is made up of these components:
29	* - @subpage pg_cfgm
30	* - @subpage pg_cpum
31	* - @subpage pg_dbgf
32	* - @subpage pg_em
33	* - @subpage pg_gim
34	* - @subpage pg_gmm
35	* - @subpage pg_gvmm
36	* - @subpage pg_hm
37	* - @subpage pg_iem
38	* - @subpage pg_iom
39	* - @subpage pg_mm
40	* - @subpage pg_nem
41	* - @subpage pg_pdm
42	* - @subpage pg_pgm
43	* - @subpage pg_selm
44	* - @subpage pg_ssm
45	* - @subpage pg_stam
46	* - @subpage pg_tm
47	* - @subpage pg_trpm
48	* - @subpage pg_vm
49	*
50	*
51	* @see @ref grp_vmm @ref grp_vm @subpage pg_vmm_guideline @subpage pg_raw
52	*
53	*
54	* @section sec_vmmstate VMM State
55	*
56	* @image html VM_Statechart_Diagram.gif
57	*
58	* To be written.
59	*
60	*
61	* @subsection subsec_vmm_init VMM Initialization
62	*
63	* To be written.
64	*
65	*
66	* @subsection subsec_vmm_term VMM Termination
67	*
68	* To be written.
69	*
70	*
71	* @section sec_vmm_limits VMM Limits
72	*
73	* There are various resource limits imposed by the VMM and it's
74	* sub-components. We'll list some of them here.
75	*
76	* On 64-bit hosts:
77	* - Max 8191 VMs. Imposed by GVMM's handle allocation (GVMM_MAX_HANDLES),
78	* can be increased up to 64K - 1.
79	* - Max 16TB - 64KB of the host memory can be used for backing VM RAM and
80	* ROM pages. The limit is imposed by the 32-bit page ID used by GMM.
81	* - A VM can be assigned all the memory we can use (16TB), however, the
82	* Main API will restrict this to 2TB (MM_RAM_MAX_IN_MB).
83	* - Max 32 virtual CPUs (VMM_MAX_CPU_COUNT).
84	*
85	* On 32-bit hosts:
86	* - Max 127 VMs. Imposed by GMM's per page structure.
87	* - Max 64GB - 64KB of the host memory can be used for backing VM RAM and
88	* ROM pages. The limit is imposed by the 28-bit page ID used
89	* internally in GMM. It is also limited by PAE.
90	* - A VM can be assigned all the memory GMM can allocate, however, the
91	* Main API will restrict this to 3584MB (MM_RAM_MAX_IN_MB).
92	* - Max 32 virtual CPUs (VMM_MAX_CPU_COUNT).
93	*
94	*/
95
96
97	/*********************************************************************************************************************************
98	* Header Files *
99	*********************************************************************************************************************************/
100	#define LOG_GROUP LOG_GROUP_VMM
101	#include <VBox/vmm/vmm.h>
102	#include <VBox/vmm/vmapi.h>
103	#include <VBox/vmm/pgm.h>
104	#include <VBox/vmm/cfgm.h>
105	#include <VBox/vmm/pdmqueue.h>
106	#include <VBox/vmm/pdmcritsect.h>
107	#include <VBox/vmm/pdmcritsectrw.h>
108	#include <VBox/vmm/pdmapi.h>
109	#include <VBox/vmm/cpum.h>
110	#include <VBox/vmm/gim.h>
111	#include <VBox/vmm/mm.h>
112	#include <VBox/vmm/nem.h>
113	#ifdef VBOX_WITH_NESTED_HWVIRT_VMX
114	# include <VBox/vmm/iem.h>
115	#endif
116	#include <VBox/vmm/iom.h>
117	#include <VBox/vmm/trpm.h>
118	#include <VBox/vmm/selm.h>
119	#include <VBox/vmm/em.h>
120	#include <VBox/sup.h>
121	#include <VBox/vmm/dbgf.h>
122	#include <VBox/vmm/apic.h>
123	#include <VBox/vmm/ssm.h>
124	#include <VBox/vmm/tm.h>
125	#include "VMMInternal.h"
126	#include <VBox/vmm/vmcc.h>
127
128	#include <VBox/err.h>
129	#include <VBox/param.h>
130	#include <VBox/version.h>
131	#include <VBox/vmm/hm.h>
132	#include <iprt/assert.h>
133	#include <iprt/alloc.h>
134	#include <iprt/asm.h>
135	#include <iprt/time.h>
136	#include <iprt/semaphore.h>
137	#include <iprt/stream.h>
138	#include <iprt/string.h>
139	#include <iprt/stdarg.h>
140	#include <iprt/ctype.h>
141	#include <iprt/x86.h>
142
143
144	/*********************************************************************************************************************************
145	* Defined Constants And Macros *
146	*********************************************************************************************************************************/
147	/** The saved state version. */
148	#define VMM_SAVED_STATE_VERSION 4
149	/** The saved state version used by v3.0 and earlier. (Teleportation) */
150	#define VMM_SAVED_STATE_VERSION_3_0 3
151
152	/** Macro for flushing the ring-0 logging. */
153	#define VMM_FLUSH_R0_LOG(a_pVM, a_pVCpu, a_pLogger, a_pR3Logger) \
154	do { \
155	size_t const idxBuf = (a_pLogger)->idxBuf % VMMLOGGER_BUFFER_COUNT; \
156	if ( (a_pLogger)->aBufs[idxBuf].AuxDesc.offBuf == 0 \
157	\|\| (a_pLogger)->aBufs[idxBuf].AuxDesc.fFlushedIndicator) \
158	{ /* likely? */ } \
159	else \
160	vmmR3LogReturnFlush(a_pVM, a_pVCpu, a_pLogger, idxBuf, a_pR3Logger); \
161	} while (0)
162
163
164	/*********************************************************************************************************************************
165	* Internal Functions *
166	*********************************************************************************************************************************/
167	static void vmmR3InitRegisterStats(PVM pVM);
168	static DECLCALLBACK(int) vmmR3Save(PVM pVM, PSSMHANDLE pSSM);
169	static DECLCALLBACK(int) vmmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass);
170	#if 0 /* pointless when timers doesn't run on EMT */
171	static DECLCALLBACK(void) vmmR3YieldEMT(PVM pVM, TMTIMERHANDLE hTimer, void *pvUser);
172	#endif
173	static VBOXSTRICTRC vmmR3EmtRendezvousCommon(PVM pVM, PVMCPU pVCpu, bool fIsCaller,
174	uint32_t fFlags, PFNVMMEMTRENDEZVOUS pfnRendezvous, void *pvUser);
175	static int vmmR3HandleRing0Assert(PVM pVM, PVMCPU pVCpu);
176	static FNRTTHREAD vmmR3LogFlusher;
177	static void vmmR3LogReturnFlush(PVM pVM, PVMCPU pVCpu, PVMMR3CPULOGGER pShared, size_t idxBuf,
178	PRTLOGGER pDstLogger);
179	static DECLCALLBACK(void) vmmR3InfoFF(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
180
181
182
183	/**
184	* Initializes the VMM.
185	*
186	* @returns VBox status code.
187	* @param pVM The cross context VM structure.
188	*/
189	VMMR3_INT_DECL(int) VMMR3Init(PVM pVM)
190	{
191	LogFlow(("VMMR3Init\n"));
192
193	/*
194	* Assert alignment, sizes and order.
195	*/
196	AssertCompile(sizeof(pVM->vmm.s) <= sizeof(pVM->vmm.padding));
197	AssertCompile(RT_SIZEOFMEMB(VMCPU, vmm.s) <= RT_SIZEOFMEMB(VMCPU, vmm.padding));
198
199	/*
200	* Init basic VM VMM members.
201	*/
202	pVM->vmm.s.pahEvtRendezvousEnterOrdered = NULL;
203	pVM->vmm.s.hEvtRendezvousEnterOneByOne = NIL_RTSEMEVENT;
204	pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce = NIL_RTSEMEVENTMULTI;
205	pVM->vmm.s.hEvtMulRendezvousDone = NIL_RTSEMEVENTMULTI;
206	pVM->vmm.s.hEvtRendezvousDoneCaller = NIL_RTSEMEVENT;
207	pVM->vmm.s.hEvtMulRendezvousRecursionPush = NIL_RTSEMEVENTMULTI;
208	pVM->vmm.s.hEvtMulRendezvousRecursionPop = NIL_RTSEMEVENTMULTI;
209	pVM->vmm.s.hEvtRendezvousRecursionPushCaller = NIL_RTSEMEVENT;
210	pVM->vmm.s.hEvtRendezvousRecursionPopCaller = NIL_RTSEMEVENT;
211	pVM->vmm.s.nsProgramStart = RTTimeProgramStartNanoTS();
212
213	#if 0 /* pointless when timers doesn't run on EMT */
214	/** @cfgm{/YieldEMTInterval, uint32_t, 1, UINT32_MAX, 23, ms}
215	* The EMT yield interval. The EMT yielding is a hack we employ to play a
216	* bit nicer with the rest of the system (like for instance the GUI).
217	*/
218	int rc = CFGMR3QueryU32Def(CFGMR3GetRoot(pVM), "YieldEMTInterval", &pVM->vmm.s.cYieldEveryMillies,
219	23 /* Value arrived at after experimenting with the grub boot prompt. */);
220	AssertMsgRCReturn(rc, ("Configuration error. Failed to query \"YieldEMTInterval\", rc=%Rrc\n", rc), rc);
221	#endif
222
223	/** @cfgm{/VMM/UsePeriodicPreemptionTimers, boolean, true}
224	* Controls whether we employ per-cpu preemption timers to limit the time
225	* spent executing guest code. This option is not available on all
226	* platforms and we will silently ignore this setting then. If we are
227	* running in VT-x mode, we will use the VMX-preemption timer instead of
228	* this one when possible.
229	*/
230	PCFGMNODE pCfgVMM = CFGMR3GetChild(CFGMR3GetRoot(pVM), "VMM");
231	int rc = CFGMR3QueryBoolDef(pCfgVMM, "UsePeriodicPreemptionTimers", &pVM->vmm.s.fUsePeriodicPreemptionTimers, true);
232	AssertMsgRCReturn(rc, ("Configuration error. Failed to query \"VMM/UsePeriodicPreemptionTimers\", rc=%Rrc\n", rc), rc);
233
234	/*
235	* Initialize the VMM rendezvous semaphores.
236	*/
237	pVM->vmm.s.pahEvtRendezvousEnterOrdered = (PRTSEMEVENT)MMR3HeapAlloc(pVM, MM_TAG_VMM, sizeof(RTSEMEVENT) * pVM->cCpus);
238	if (!pVM->vmm.s.pahEvtRendezvousEnterOrdered)
239	return VERR_NO_MEMORY;
240	for (VMCPUID i = 0; i < pVM->cCpus; i++)
241	pVM->vmm.s.pahEvtRendezvousEnterOrdered[i] = NIL_RTSEMEVENT;
242	for (VMCPUID i = 0; i < pVM->cCpus; i++)
243	{
244	rc = RTSemEventCreate(&pVM->vmm.s.pahEvtRendezvousEnterOrdered[i]);
245	AssertRCReturn(rc, rc);
246	}
247	rc = RTSemEventCreate(&pVM->vmm.s.hEvtRendezvousEnterOneByOne);
248	AssertRCReturn(rc, rc);
249	rc = RTSemEventMultiCreate(&pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce);
250	AssertRCReturn(rc, rc);
251	rc = RTSemEventMultiCreate(&pVM->vmm.s.hEvtMulRendezvousDone);
252	AssertRCReturn(rc, rc);
253	rc = RTSemEventCreate(&pVM->vmm.s.hEvtRendezvousDoneCaller);
254	AssertRCReturn(rc, rc);
255	rc = RTSemEventMultiCreate(&pVM->vmm.s.hEvtMulRendezvousRecursionPush);
256	AssertRCReturn(rc, rc);
257	rc = RTSemEventMultiCreate(&pVM->vmm.s.hEvtMulRendezvousRecursionPop);
258	AssertRCReturn(rc, rc);
259	rc = RTSemEventCreate(&pVM->vmm.s.hEvtRendezvousRecursionPushCaller);
260	AssertRCReturn(rc, rc);
261	rc = RTSemEventCreate(&pVM->vmm.s.hEvtRendezvousRecursionPopCaller);
262	AssertRCReturn(rc, rc);
263
264	/*
265	* Register the saved state data unit.
266	*/
267	rc = SSMR3RegisterInternal(pVM, "vmm", 1, VMM_SAVED_STATE_VERSION, VMM_STACK_SIZE + sizeof(RTGCPTR),
268	NULL, NULL, NULL,
269	NULL, vmmR3Save, NULL,
270	NULL, vmmR3Load, NULL);
271	if (RT_FAILURE(rc))
272	return rc;
273
274	/*
275	* Register the Ring-0 VM handle with the session for fast ioctl calls.
276	*/
277	bool const fDriverless = SUPR3IsDriverless();
278	if (!fDriverless)
279	{
280	rc = SUPR3SetVMForFastIOCtl(VMCC_GET_VMR0_FOR_CALL(pVM));
281	if (RT_FAILURE(rc))
282	return rc;
283	}
284
285	#ifdef VBOX_WITH_NMI
286	/*
287	* Allocate mapping for the host APIC.
288	*/
289	rc = MMR3HyperReserve(pVM, HOST_PAGE_SIZE, "Host APIC", &pVM->vmm.s.GCPtrApicBase);
290	AssertRC(rc);
291	#endif
292	if (RT_SUCCESS(rc))
293	{
294	/*
295	* Start the log flusher thread.
296	*/
297	if (!fDriverless)
298	rc = RTThreadCreate(&pVM->vmm.s.hLogFlusherThread, vmmR3LogFlusher, pVM, 0 /cbStack/,
299	RTTHREADTYPE_IO, RTTHREADFLAGS_WAITABLE, "R0LogWrk");
300	if (RT_SUCCESS(rc))
301	{
302
303	/*
304	* Debug info and statistics.
305	*/
306	DBGFR3InfoRegisterInternal(pVM, "fflags", "Displays the current Forced actions Flags.", vmmR3InfoFF);
307	vmmR3InitRegisterStats(pVM);
308	vmmInitFormatTypes();
309
310	return VINF_SUCCESS;
311	}
312	}
313	/** @todo Need failure cleanup? */
314
315	return rc;
316	}
317
318
319	/**
320	* VMMR3Init worker that register the statistics with STAM.
321	*
322	* @param pVM The cross context VM structure.
323	*/
324	static void vmmR3InitRegisterStats(PVM pVM)
325	{
326	RT_NOREF_PV(pVM);
327
328	/* Nothing to do here in driverless mode. */
329	if (SUPR3IsDriverless())
330	return;
331
332	/*
333	* Statistics.
334	*/
335	STAM_REG(pVM, &pVM->vmm.s.StatRunGC, STAMTYPE_COUNTER, "/VMM/RunGC", STAMUNIT_OCCURENCES, "Number of context switches.");
336	STAM_REG(pVM, &pVM->vmm.s.StatRZRetNormal, STAMTYPE_COUNTER, "/VMM/RZRet/Normal", STAMUNIT_OCCURENCES, "Number of VINF_SUCCESS returns.");
337	STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterrupt, STAMTYPE_COUNTER, "/VMM/RZRet/Interrupt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT returns.");
338	STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterruptHyper, STAMTYPE_COUNTER, "/VMM/RZRet/InterruptHyper", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT_HYPER returns.");
339	STAM_REG(pVM, &pVM->vmm.s.StatRZRetGuestTrap, STAMTYPE_COUNTER, "/VMM/RZRet/GuestTrap", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_GUEST_TRAP returns.");
340	STAM_REG(pVM, &pVM->vmm.s.StatRZRetRingSwitch, STAMTYPE_COUNTER, "/VMM/RZRet/RingSwitch", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_RING_SWITCH returns.");
341	STAM_REG(pVM, &pVM->vmm.s.StatRZRetRingSwitchInt, STAMTYPE_COUNTER, "/VMM/RZRet/RingSwitchInt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_RING_SWITCH_INT returns.");
342	STAM_REG(pVM, &pVM->vmm.s.StatRZRetStaleSelector, STAMTYPE_COUNTER, "/VMM/RZRet/StaleSelector", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_STALE_SELECTOR returns.");
343	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIRETTrap, STAMTYPE_COUNTER, "/VMM/RZRet/IRETTrap", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_IRET_TRAP returns.");
344	STAM_REG(pVM, &pVM->vmm.s.StatRZRetEmulate, STAMTYPE_COUNTER, "/VMM/RZRet/Emulate", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION returns.");
345	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchEmulate, STAMTYPE_COUNTER, "/VMM/RZRet/PatchEmulate", STAMUNIT_OCCURENCES, "Number of VINF_PATCH_EMULATE_INSTR returns.");
346	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIORead, STAMTYPE_COUNTER, "/VMM/RZRet/IORead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_R3_IOPORT_READ returns.");
347	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIOWrite, STAMTYPE_COUNTER, "/VMM/RZRet/IOWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_R3_IOPORT_WRITE returns.");
348	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIOCommitWrite, STAMTYPE_COUNTER, "/VMM/RZRet/IOCommitWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_R3_IOPORT_COMMIT_WRITE returns.");
349	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIORead, STAMTYPE_COUNTER, "/VMM/RZRet/MMIORead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_R3_MMIO_READ returns.");
350	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_R3_MMIO_WRITE returns.");
351	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOCommitWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOCommitWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_R3_MMIO_COMMIT_WRITE returns.");
352	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOReadWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOReadWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_R3_MMIO_READ_WRITE returns.");
353	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOPatchRead, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOPatchRead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_PATCH_READ returns.");
354	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMMIOPatchWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MMIOPatchWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_PATCH_WRITE returns.");
355	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMSRRead, STAMTYPE_COUNTER, "/VMM/RZRet/MSRRead", STAMUNIT_OCCURENCES, "Number of VINF_CPUM_R3_MSR_READ returns.");
356	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMSRWrite, STAMTYPE_COUNTER, "/VMM/RZRet/MSRWrite", STAMUNIT_OCCURENCES, "Number of VINF_CPUM_R3_MSR_WRITE returns.");
357	STAM_REG(pVM, &pVM->vmm.s.StatRZRetLDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/LDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_GDT_FAULT returns.");
358	STAM_REG(pVM, &pVM->vmm.s.StatRZRetGDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/GDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_LDT_FAULT returns.");
359	STAM_REG(pVM, &pVM->vmm.s.StatRZRetIDTFault, STAMTYPE_COUNTER, "/VMM/RZRet/IDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_IDT_FAULT returns.");
360	STAM_REG(pVM, &pVM->vmm.s.StatRZRetTSSFault, STAMTYPE_COUNTER, "/VMM/RZRet/TSSFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_TSS_FAULT returns.");
361	STAM_REG(pVM, &pVM->vmm.s.StatRZRetCSAMTask, STAMTYPE_COUNTER, "/VMM/RZRet/CSAMTask", STAMUNIT_OCCURENCES, "Number of VINF_CSAM_PENDING_ACTION returns.");
362	STAM_REG(pVM, &pVM->vmm.s.StatRZRetSyncCR3, STAMTYPE_COUNTER, "/VMM/RZRet/SyncCR", STAMUNIT_OCCURENCES, "Number of VINF_PGM_SYNC_CR3 returns.");
363	STAM_REG(pVM, &pVM->vmm.s.StatRZRetMisc, STAMTYPE_COUNTER, "/VMM/RZRet/Misc", STAMUNIT_OCCURENCES, "Number of misc returns.");
364	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchInt3, STAMTYPE_COUNTER, "/VMM/RZRet/PatchInt3", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_INT3 returns.");
365	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchPF, STAMTYPE_COUNTER, "/VMM/RZRet/PatchPF", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_TRAP_PF returns.");
366	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchGP, STAMTYPE_COUNTER, "/VMM/RZRet/PatchGP", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_TRAP_GP returns.");
367	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchIretIRQ, STAMTYPE_COUNTER, "/VMM/RZRet/PatchIret", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PENDING_IRQ_AFTER_IRET returns.");
368	STAM_REG(pVM, &pVM->vmm.s.StatRZRetRescheduleREM, STAMTYPE_COUNTER, "/VMM/RZRet/ScheduleREM", STAMUNIT_OCCURENCES, "Number of VINF_EM_RESCHEDULE_REM returns.");
369	STAM_REG(pVM, &pVM->vmm.s.StatRZRetToR3Total, STAMTYPE_COUNTER, "/VMM/RZRet/ToR3", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns.");
370	STAM_REG(pVM, &pVM->vmm.s.StatRZRetToR3Unknown, STAMTYPE_COUNTER, "/VMM/RZRet/ToR3/Unknown", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns without responsible force flag.");
371	STAM_REG(pVM, &pVM->vmm.s.StatRZRetToR3FF, STAMTYPE_COUNTER, "/VMM/RZRet/ToR3/ToR3", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns with VMCPU_FF_TO_R3.");
372	STAM_REG(pVM, &pVM->vmm.s.StatRZRetToR3TMVirt, STAMTYPE_COUNTER, "/VMM/RZRet/ToR3/TMVirt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns with VM_FF_TM_VIRTUAL_SYNC.");
373	STAM_REG(pVM, &pVM->vmm.s.StatRZRetToR3HandyPages, STAMTYPE_COUNTER, "/VMM/RZRet/ToR3/Handy", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns with VM_FF_PGM_NEED_HANDY_PAGES.");
374	STAM_REG(pVM, &pVM->vmm.s.StatRZRetToR3PDMQueues, STAMTYPE_COUNTER, "/VMM/RZRet/ToR3/PDMQueue", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns with VM_FF_PDM_QUEUES.");
375	STAM_REG(pVM, &pVM->vmm.s.StatRZRetToR3Rendezvous, STAMTYPE_COUNTER, "/VMM/RZRet/ToR3/Rendezvous", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns with VM_FF_EMT_RENDEZVOUS.");
376	STAM_REG(pVM, &pVM->vmm.s.StatRZRetToR3Timer, STAMTYPE_COUNTER, "/VMM/RZRet/ToR3/Timer", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns with VMCPU_FF_TIMER.");
377	STAM_REG(pVM, &pVM->vmm.s.StatRZRetToR3DMA, STAMTYPE_COUNTER, "/VMM/RZRet/ToR3/DMA", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns with VM_FF_PDM_DMA.");
378	STAM_REG(pVM, &pVM->vmm.s.StatRZRetToR3CritSect, STAMTYPE_COUNTER, "/VMM/RZRet/ToR3/CritSect", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns with VMCPU_FF_PDM_CRITSECT.");
379	STAM_REG(pVM, &pVM->vmm.s.StatRZRetToR3Iem, STAMTYPE_COUNTER, "/VMM/RZRet/ToR3/IEM", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns with VMCPU_FF_IEM.");
380	STAM_REG(pVM, &pVM->vmm.s.StatRZRetToR3Iom, STAMTYPE_COUNTER, "/VMM/RZRet/ToR3/IOM", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns with VMCPU_FF_IOM.");
381	STAM_REG(pVM, &pVM->vmm.s.StatRZRetTimerPending, STAMTYPE_COUNTER, "/VMM/RZRet/TimerPending", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TIMER_PENDING returns.");
382	STAM_REG(pVM, &pVM->vmm.s.StatRZRetInterruptPending, STAMTYPE_COUNTER, "/VMM/RZRet/InterruptPending", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT_PENDING returns.");
383	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPATMDuplicateFn, STAMTYPE_COUNTER, "/VMM/RZRet/PATMDuplicateFn", STAMUNIT_OCCURENCES, "Number of VINF_PATM_DUPLICATE_FUNCTION returns.");
384	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPGMFlushPending, STAMTYPE_COUNTER, "/VMM/RZRet/PGMFlushPending", STAMUNIT_OCCURENCES, "Number of VINF_PGM_POOL_FLUSH_PENDING returns.");
385	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPendingRequest, STAMTYPE_COUNTER, "/VMM/RZRet/PendingRequest", STAMUNIT_OCCURENCES, "Number of VINF_EM_PENDING_REQUEST returns.");
386	STAM_REG(pVM, &pVM->vmm.s.StatRZRetPatchTPR, STAMTYPE_COUNTER, "/VMM/RZRet/PatchTPR", STAMUNIT_OCCURENCES, "Number of VINF_EM_HM_PATCH_TPR_INSTR returns.");
387
388	STAMR3Register(pVM, &pVM->vmm.s.StatLogFlusherFlushes, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, "/VMM/LogFlush/00-Flushes", STAMUNIT_OCCURENCES, "Total number of buffer flushes");
389	STAMR3Register(pVM, &pVM->vmm.s.StatLogFlusherNoWakeUp, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, "/VMM/LogFlush/00-NoWakups", STAMUNIT_OCCURENCES, "Times the flusher thread didn't need waking up.");
390
391	for (VMCPUID i = 0; i < pVM->cCpus; i++)
392	{
393	PVMCPU pVCpu = pVM->apCpusR3[i];
394	STAMR3RegisterF(pVM, &pVCpu->vmm.s.StatR0HaltBlock, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_CALL, "", "/PROF/CPU%u/VM/Halt/R0HaltBlock", i);
395	STAMR3RegisterF(pVM, &pVCpu->vmm.s.StatR0HaltBlockOnTime, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_CALL, "", "/PROF/CPU%u/VM/Halt/R0HaltBlockOnTime", i);
396	STAMR3RegisterF(pVM, &pVCpu->vmm.s.StatR0HaltBlockOverslept, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_CALL, "", "/PROF/CPU%u/VM/Halt/R0HaltBlockOverslept", i);
397	STAMR3RegisterF(pVM, &pVCpu->vmm.s.StatR0HaltBlockInsomnia, STAMTYPE_PROFILE, STAMVISIBILITY_ALWAYS, STAMUNIT_NS_PER_CALL, "", "/PROF/CPU%u/VM/Halt/R0HaltBlockInsomnia", i);
398	STAMR3RegisterF(pVM, &pVCpu->vmm.s.StatR0HaltExec, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "", "/PROF/CPU%u/VM/Halt/R0HaltExec", i);
399	STAMR3RegisterF(pVM, &pVCpu->vmm.s.StatR0HaltExecFromSpin, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "", "/PROF/CPU%u/VM/Halt/R0HaltExec/FromSpin", i);
400	STAMR3RegisterF(pVM, &pVCpu->vmm.s.StatR0HaltExecFromBlock, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "", "/PROF/CPU%u/VM/Halt/R0HaltExec/FromBlock", i);
401	STAMR3RegisterF(pVM, &pVCpu->vmm.s.StatR0HaltToR3, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "", "/PROF/CPU%u/VM/Halt/R0HaltToR3", i);
402	STAMR3RegisterF(pVM, &pVCpu->vmm.s.StatR0HaltToR3FromSpin, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "", "/PROF/CPU%u/VM/Halt/R0HaltToR3/FromSpin", i);
403	STAMR3RegisterF(pVM, &pVCpu->vmm.s.StatR0HaltToR3Other, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "", "/PROF/CPU%u/VM/Halt/R0HaltToR3/Other", i);
404	STAMR3RegisterF(pVM, &pVCpu->vmm.s.StatR0HaltToR3PendingFF, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "", "/PROF/CPU%u/VM/Halt/R0HaltToR3/PendingFF", i);
405	STAMR3RegisterF(pVM, &pVCpu->vmm.s.StatR0HaltToR3SmallDelta, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "", "/PROF/CPU%u/VM/Halt/R0HaltToR3/SmallDelta", i);
406	STAMR3RegisterF(pVM, &pVCpu->vmm.s.StatR0HaltToR3PostNoInt, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "", "/PROF/CPU%u/VM/Halt/R0HaltToR3/PostWaitNoInt", i);
407	STAMR3RegisterF(pVM, &pVCpu->vmm.s.StatR0HaltToR3PostPendingFF,STAMTYPE_COUNTER,STAMVISIBILITY_ALWAYS,STAMUNIT_OCCURENCES, "", "/PROF/CPU%u/VM/Halt/R0HaltToR3/PostWaitPendingFF", i);
408	STAMR3RegisterF(pVM, &pVCpu->vmm.s.cR0Halts, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "", "/PROF/CPU%u/VM/Halt/R0HaltHistoryCounter", i);
409	STAMR3RegisterF(pVM, &pVCpu->vmm.s.cR0HaltsSucceeded, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "", "/PROF/CPU%u/VM/Halt/R0HaltHistorySucceeded", i);
410	STAMR3RegisterF(pVM, &pVCpu->vmm.s.cR0HaltsToRing3, STAMTYPE_U32, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "", "/PROF/CPU%u/VM/Halt/R0HaltHistoryToRing3", i);
411
412	STAMR3RegisterF(pVM, &pVCpu->cEmtHashCollisions, STAMTYPE_U8, STAMVISIBILITY_ALWAYS, STAMUNIT_OCCURENCES, "", "/VMM/EmtHashCollisions/Emt%02u", i);
413
414	PVMMR3CPULOGGER pShared = &pVCpu->vmm.s.u.s.Logger;
415	STAMR3RegisterF(pVM, &pShared->StatFlushes, STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES, "", "/VMM/LogFlush/CPU%u/Reg", i);
416	STAMR3RegisterF(pVM, &pShared->StatCannotBlock, STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES, "", "/VMM/LogFlush/CPU%u/Reg/CannotBlock", i);
417	STAMR3RegisterF(pVM, &pShared->StatWait, STAMTYPE_PROFILE, STAMVISIBILITY_USED, STAMUNIT_TICKS_PER_CALL, "", "/VMM/LogFlush/CPU%u/Reg/Wait", i);
418	STAMR3RegisterF(pVM, &pShared->StatRaces, STAMTYPE_PROFILE, STAMVISIBILITY_USED, STAMUNIT_TICKS_PER_CALL, "", "/VMM/LogFlush/CPU%u/Reg/Races", i);
419	STAMR3RegisterF(pVM, &pShared->StatRacesToR0, STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES, "", "/VMM/LogFlush/CPU%u/Reg/RacesToR0", i);
420	STAMR3RegisterF(pVM, &pShared->cbDropped, STAMTYPE_U32, STAMVISIBILITY_USED, STAMUNIT_BYTES, "", "/VMM/LogFlush/CPU%u/Reg/cbDropped", i);
421	STAMR3RegisterF(pVM, &pShared->cbBuf, STAMTYPE_U32, STAMVISIBILITY_USED, STAMUNIT_BYTES, "", "/VMM/LogFlush/CPU%u/Reg/cbBuf", i);
422	STAMR3RegisterF(pVM, &pShared->idxBuf, STAMTYPE_U32, STAMVISIBILITY_USED, STAMUNIT_BYTES, "", "/VMM/LogFlush/CPU%u/Reg/idxBuf", i);
423
424	pShared = &pVCpu->vmm.s.u.s.RelLogger;
425	STAMR3RegisterF(pVM, &pShared->StatFlushes, STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES, "", "/VMM/LogFlush/CPU%u/Rel", i);
426	STAMR3RegisterF(pVM, &pShared->StatCannotBlock, STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES, "", "/VMM/LogFlush/CPU%u/Rel/CannotBlock", i);
427	STAMR3RegisterF(pVM, &pShared->StatWait, STAMTYPE_PROFILE, STAMVISIBILITY_USED, STAMUNIT_TICKS_PER_CALL, "", "/VMM/LogFlush/CPU%u/Rel/Wait", i);
428	STAMR3RegisterF(pVM, &pShared->StatRaces, STAMTYPE_PROFILE, STAMVISIBILITY_USED, STAMUNIT_TICKS_PER_CALL, "", "/VMM/LogFlush/CPU%u/Rel/Races", i);
429	STAMR3RegisterF(pVM, &pShared->StatRacesToR0, STAMTYPE_COUNTER, STAMVISIBILITY_USED, STAMUNIT_OCCURENCES, "", "/VMM/LogFlush/CPU%u/Rel/RacesToR0", i);
430	STAMR3RegisterF(pVM, &pShared->cbDropped, STAMTYPE_U32, STAMVISIBILITY_USED, STAMUNIT_BYTES, "", "/VMM/LogFlush/CPU%u/Rel/cbDropped", i);
431	STAMR3RegisterF(pVM, &pShared->cbBuf, STAMTYPE_U32, STAMVISIBILITY_USED, STAMUNIT_BYTES, "", "/VMM/LogFlush/CPU%u/Rel/cbBuf", i);
432	STAMR3RegisterF(pVM, &pShared->idxBuf, STAMTYPE_U32, STAMVISIBILITY_USED, STAMUNIT_BYTES, "", "/VMM/LogFlush/CPU%u/Rel/idxBuf", i);
433	}
434	}
435
436
437	/**
438	* Worker for VMMR3InitR0 that calls ring-0 to do EMT specific initialization.
439	*
440	* @returns VBox status code.
441	* @param pVM The cross context VM structure.
442	* @param pVCpu The cross context per CPU structure.
443	* @thread EMT(pVCpu)
444	*/
445	static DECLCALLBACK(int) vmmR3InitR0Emt(PVM pVM, PVMCPU pVCpu)
446	{
447	return VMMR3CallR0Emt(pVM, pVCpu, VMMR0_DO_VMMR0_INIT_EMT, 0, NULL);
448	}
449
450
451	/**
452	* Initializes the R0 VMM.
453	*
454	* @returns VBox status code.
455	* @param pVM The cross context VM structure.
456	*/
457	VMMR3_INT_DECL(int) VMMR3InitR0(PVM pVM)
458	{
459	int rc;
460	PVMCPU pVCpu = VMMGetCpu(pVM);
461	Assert(pVCpu && pVCpu->idCpu == 0);
462
463	/*
464	* Nothing to do here in driverless mode.
465	*/
466	if (SUPR3IsDriverless())
467	return VINF_SUCCESS;
468
469	/*
470	* Make sure the ring-0 loggers are up to date.
471	*/
472	rc = VMMR3UpdateLoggers(pVM);
473	if (RT_FAILURE(rc))
474	return rc;
475
476	/*
477	* Call Ring-0 entry with init code.
478	*/
479	#ifdef NO_SUPCALLR0VMM
480	//rc = VERR_GENERAL_FAILURE;
481	rc = VINF_SUCCESS;
482	#else
483	rc = SUPR3CallVMMR0Ex(VMCC_GET_VMR0_FOR_CALL(pVM), 0 /idCpu/, VMMR0_DO_VMMR0_INIT, RT_MAKE_U64(VMMGetSvnRev(), vmmGetBuildType()), NULL);
484	#endif
485
486	/*
487	* Flush the logs & deal with assertions.
488	*/
489	#ifdef LOG_ENABLED
490	VMM_FLUSH_R0_LOG(pVM, pVCpu, &pVCpu->vmm.s.u.s.Logger, NULL);
491	#endif
492	VMM_FLUSH_R0_LOG(pVM, pVCpu, &pVCpu->vmm.s.u.s.RelLogger, RTLogRelGetDefaultInstance());
493	if (rc == VERR_VMM_RING0_ASSERTION)
494	rc = vmmR3HandleRing0Assert(pVM, pVCpu);
495	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
496	{
497	LogRel(("VMM: R0 init failed, rc=%Rra\n", rc));
498	if (RT_SUCCESS(rc))
499	rc = VERR_IPE_UNEXPECTED_INFO_STATUS;
500	}
501
502	/*
503	* Log stuff we learned in ring-0.
504	*/
505	/* Log whether thread-context hooks are used (on Linux this can depend on how the kernel is configured). */
506	if (pVM->vmm.s.fIsUsingContextHooks)
507	LogRel(("VMM: Enabled thread-context hooks\n"));
508	else
509	LogRel(("VMM: Thread-context hooks unavailable\n"));
510
511	/* Log RTThreadPreemptIsPendingTrusty() and RTThreadPreemptIsPossible() results. */
512	if (pVM->vmm.s.fIsPreemptPendingApiTrusty)
513	LogRel(("VMM: RTThreadPreemptIsPending() can be trusted\n"));
514	else
515	LogRel(("VMM: Warning! RTThreadPreemptIsPending() cannot be trusted! Need to update kernel info?\n"));
516	if (pVM->vmm.s.fIsPreemptPossible)
517	LogRel(("VMM: Kernel preemption is possible\n"));
518	else
519	LogRel(("VMM: Kernel preemption is not possible it seems\n"));
520
521	/*
522	* Send all EMTs to ring-0 to get their logger initialized.
523	*/
524	for (VMCPUID idCpu = 0; RT_SUCCESS(rc) && idCpu < pVM->cCpus; idCpu++)
525	rc = VMR3ReqCallWait(pVM, idCpu, (PFNRT)vmmR3InitR0Emt, 2, pVM, pVM->apCpusR3[idCpu]);
526
527	return rc;
528	}
529
530
531	/**
532	* Called when an init phase completes.
533	*
534	* @returns VBox status code.
535	* @param pVM The cross context VM structure.
536	* @param enmWhat Which init phase.
537	*/
538	VMMR3_INT_DECL(int) VMMR3InitCompleted(PVM pVM, VMINITCOMPLETED enmWhat)
539	{
540	int rc = VINF_SUCCESS;
541
542	switch (enmWhat)
543	{
544	case VMINITCOMPLETED_RING3:
545	{
546	#if 0 /* pointless when timers doesn't run on EMT */
547	/*
548	* Create the EMT yield timer.
549	*/
550	rc = TMR3TimerCreate(pVM, TMCLOCK_REAL, vmmR3YieldEMT, NULL, TMTIMER_FLAGS_NO_RING0,
551	"EMT Yielder", &pVM->vmm.s.hYieldTimer);
552	AssertRCReturn(rc, rc);
553
554	rc = TMTimerSetMillies(pVM, pVM->vmm.s.hYieldTimer, pVM->vmm.s.cYieldEveryMillies);
555	AssertRCReturn(rc, rc);
556	#endif
557	break;
558	}
559
560	case VMINITCOMPLETED_HM:
561	{
562	/*
563	* Disable the periodic preemption timers if we can use the
564	* VMX-preemption timer instead.
565	*/
566	if ( pVM->vmm.s.fUsePeriodicPreemptionTimers
567	&& HMR3IsVmxPreemptionTimerUsed(pVM))
568	pVM->vmm.s.fUsePeriodicPreemptionTimers = false;
569	LogRel(("VMM: fUsePeriodicPreemptionTimers=%RTbool\n", pVM->vmm.s.fUsePeriodicPreemptionTimers));
570
571	/*
572	* Last chance for GIM to update its CPUID leaves if it requires
573	* knowledge/information from HM initialization.
574	*/
575	/** @todo r=bird: This shouldn't be done from here, but rather from VM.cpp. There is no dependency on VMM here. */
576	rc = GIMR3InitCompleted(pVM);
577	AssertRCReturn(rc, rc);
578
579	/*
580	* CPUM's post-initialization (print CPUIDs).
581	*/
582	CPUMR3LogCpuIdAndMsrFeatures(pVM);
583	break;
584	}
585
586	default: /* shuts up gcc */
587	break;
588	}
589
590	return rc;
591	}
592
593
594	/**
595	* Terminate the VMM bits.
596	*
597	* @returns VBox status code.
598	* @param pVM The cross context VM structure.
599	*/
600	VMMR3_INT_DECL(int) VMMR3Term(PVM pVM)
601	{
602	PVMCPU pVCpu = VMMGetCpu(pVM);
603	Assert(pVCpu && pVCpu->idCpu == 0);
604
605	/*
606	* Call Ring-0 entry with termination code.
607	*/
608	int rc = VINF_SUCCESS;
609	if (!SUPR3IsDriverless())
610	{
611	#ifndef NO_SUPCALLR0VMM
612	rc = SUPR3CallVMMR0Ex(VMCC_GET_VMR0_FOR_CALL(pVM), 0 /idCpu/, VMMR0_DO_VMMR0_TERM, 0, NULL);
613	#endif
614	}
615
616	/*
617	* Flush the logs & deal with assertions.
618	*/
619	#ifdef LOG_ENABLED
620	VMM_FLUSH_R0_LOG(pVM, pVCpu, &pVCpu->vmm.s.u.s.Logger, NULL);
621	#endif
622	VMM_FLUSH_R0_LOG(pVM, pVCpu, &pVCpu->vmm.s.u.s.RelLogger, RTLogRelGetDefaultInstance());
623	if (rc == VERR_VMM_RING0_ASSERTION)
624	rc = vmmR3HandleRing0Assert(pVM, pVCpu);
625	if (RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
626	{
627	LogRel(("VMM: VMMR3Term: R0 term failed, rc=%Rra. (warning)\n", rc));
628	if (RT_SUCCESS(rc))
629	rc = VERR_IPE_UNEXPECTED_INFO_STATUS;
630	}
631
632	/*
633	* Do clean ups.
634	*/
635	for (VMCPUID i = 0; i < pVM->cCpus; i++)
636	{
637	RTSemEventDestroy(pVM->vmm.s.pahEvtRendezvousEnterOrdered[i]);
638	pVM->vmm.s.pahEvtRendezvousEnterOrdered[i] = NIL_RTSEMEVENT;
639	}
640	RTSemEventDestroy(pVM->vmm.s.hEvtRendezvousEnterOneByOne);
641	pVM->vmm.s.hEvtRendezvousEnterOneByOne = NIL_RTSEMEVENT;
642	RTSemEventMultiDestroy(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce);
643	pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce = NIL_RTSEMEVENTMULTI;
644	RTSemEventMultiDestroy(pVM->vmm.s.hEvtMulRendezvousDone);
645	pVM->vmm.s.hEvtMulRendezvousDone = NIL_RTSEMEVENTMULTI;
646	RTSemEventDestroy(pVM->vmm.s.hEvtRendezvousDoneCaller);
647	pVM->vmm.s.hEvtRendezvousDoneCaller = NIL_RTSEMEVENT;
648	RTSemEventMultiDestroy(pVM->vmm.s.hEvtMulRendezvousRecursionPush);
649	pVM->vmm.s.hEvtMulRendezvousRecursionPush = NIL_RTSEMEVENTMULTI;
650	RTSemEventMultiDestroy(pVM->vmm.s.hEvtMulRendezvousRecursionPop);
651	pVM->vmm.s.hEvtMulRendezvousRecursionPop = NIL_RTSEMEVENTMULTI;
652	RTSemEventDestroy(pVM->vmm.s.hEvtRendezvousRecursionPushCaller);
653	pVM->vmm.s.hEvtRendezvousRecursionPushCaller = NIL_RTSEMEVENT;
654	RTSemEventDestroy(pVM->vmm.s.hEvtRendezvousRecursionPopCaller);
655	pVM->vmm.s.hEvtRendezvousRecursionPopCaller = NIL_RTSEMEVENT;
656
657	vmmTermFormatTypes();
658
659	/*
660	* Wait for the log flusher thread to complete.
661	*/
662	if (pVM->vmm.s.hLogFlusherThread != NIL_RTTHREAD)
663	{
664	int rc2 = RTThreadWait(pVM->vmm.s.hLogFlusherThread, RT_MS_30SEC, NULL);
665	AssertLogRelRC(rc2);
666	if (RT_SUCCESS(rc2))
667	pVM->vmm.s.hLogFlusherThread = NIL_RTTHREAD;
668	}
669
670	return rc;
671	}
672
673
674	/**
675	* Applies relocations to data and code managed by this
676	* component. This function will be called at init and
677	* whenever the VMM need to relocate it self inside the GC.
678	*
679	* The VMM will need to apply relocations to the core code.
680	*
681	* @param pVM The cross context VM structure.
682	* @param offDelta The relocation delta.
683	*/
684	VMMR3_INT_DECL(void) VMMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
685	{
686	LogFlow(("VMMR3Relocate: offDelta=%RGv\n", offDelta));
687	RT_NOREF(offDelta);
688
689	/*
690	* Update the logger.
691	*/
692	VMMR3UpdateLoggers(pVM);
693	}
694
695
696	/**
697	* Worker for VMMR3UpdateLoggers.
698	*/
699	static int vmmR3UpdateLoggersWorker(PVM pVM, PVMCPU pVCpu, PRTLOGGER pSrcLogger, bool fReleaseLogger)
700	{
701	/*
702	* Get the group count.
703	*/
704	uint32_t uGroupsCrc32 = 0;
705	uint32_t cGroups = 0;
706	uint64_t fFlags = 0;
707	int rc = RTLogQueryBulk(pSrcLogger, &fFlags, &uGroupsCrc32, &cGroups, NULL);
708	Assert(rc == VERR_BUFFER_OVERFLOW);
709
710	/*
711	* Allocate the request of the right size.
712	*/
713	uint32_t const cbReq = RT_UOFFSETOF_DYN(VMMR0UPDATELOGGERSREQ, afGroups[cGroups]);
714	PVMMR0UPDATELOGGERSREQ pReq = (PVMMR0UPDATELOGGERSREQ)RTMemAllocZVar(cbReq);
715	if (pReq)
716	{
717	pReq->Hdr.u32Magic = SUPVMMR0REQHDR_MAGIC;
718	pReq->Hdr.cbReq = cbReq;
719	pReq->cGroups = cGroups;
720	rc = RTLogQueryBulk(pSrcLogger, &pReq->fFlags, &pReq->uGroupCrc32, &pReq->cGroups, pReq->afGroups);
721	AssertRC(rc);
722	if (RT_SUCCESS(rc))
723	rc = VMMR3CallR0Emt(pVM, pVCpu, VMMR0_DO_VMMR0_UPDATE_LOGGERS, fReleaseLogger, &pReq->Hdr);
724
725	RTMemFree(pReq);
726	}
727	else
728	rc = VERR_NO_MEMORY;
729	return rc;
730	}
731
732
733	/**
734	* Updates the settings for the RC and R0 loggers.
735	*
736	* @returns VBox status code.
737	* @param pVM The cross context VM structure.
738	* @thread EMT
739	*/
740	VMMR3_INT_DECL(int) VMMR3UpdateLoggers(PVM pVM)
741	{
742	/* Nothing to do here if we're in driverless mode: */
743	if (SUPR3IsDriverless())
744	return VINF_SUCCESS;
745
746	PVMCPU pVCpu = VMMGetCpu(pVM);
747	AssertReturn(pVCpu, VERR_VM_THREAD_NOT_EMT);
748
749	/*
750	* Each EMT has each own logger instance.
751	*/
752	/* Debug logging.*/
753	int rcDebug = VINF_SUCCESS;
754	#ifdef LOG_ENABLED
755	PRTLOGGER const pDefault = RTLogDefaultInstance();
756	if (pDefault)
757	rcDebug = vmmR3UpdateLoggersWorker(pVM, pVCpu, pDefault, false /fReleaseLogger/);
758	#else
759	RT_NOREF(pVM);
760	#endif
761
762	/* Release logging. */
763	int rcRelease = VINF_SUCCESS;
764	PRTLOGGER const pRelease = RTLogRelGetDefaultInstance();
765	if (pRelease)
766	rcRelease = vmmR3UpdateLoggersWorker(pVM, pVCpu, pRelease, true /fReleaseLogger/);
767
768	return RT_SUCCESS(rcDebug) ? rcRelease : rcDebug;
769	}
770
771
772	/**
773	* @callback_method_impl{FNRTTHREAD, Ring-0 log flusher thread.}
774	*/
775	static DECLCALLBACK(int) vmmR3LogFlusher(RTTHREAD hThreadSelf, void *pvUser)
776	{
777	PVM const pVM = (PVM)pvUser;
778	RT_NOREF(hThreadSelf);
779
780	/* Reset the flusher state before we start: */
781	pVM->vmm.s.LogFlusherItem.u32 = UINT32_MAX;
782
783	/*
784	* The work loop.
785	*/
786	for (;;)
787	{
788	/*
789	* Wait for work.
790	*/
791	int rc = SUPR3CallVMMR0Ex(VMCC_GET_VMR0_FOR_CALL(pVM), NIL_VMCPUID, VMMR0_DO_VMMR0_LOG_FLUSHER, 0, NULL);
792	if (RT_SUCCESS(rc))
793	{
794	/* Paranoia: Make another copy of the request, to make sure the validated data can't be changed. */
795	VMMLOGFLUSHERENTRY Item;
796	Item.u32 = pVM->vmm.s.LogFlusherItem.u32;
797	if ( Item.s.idCpu < pVM->cCpus
798	&& Item.s.idxLogger < VMMLOGGER_IDX_MAX
799	&& Item.s.idxBuffer < VMMLOGGER_BUFFER_COUNT)
800	{
801	/*
802	* Verify the request.
803	*/
804	PVMCPU const pVCpu = pVM->apCpusR3[Item.s.idCpu];
805	PVMMR3CPULOGGER const pShared = &pVCpu->vmm.s.u.aLoggers[Item.s.idxLogger];
806	uint32_t const cbToFlush = pShared->aBufs[Item.s.idxBuffer].AuxDesc.offBuf;
807	if (cbToFlush > 0)
808	{
809	if (cbToFlush <= pShared->cbBuf)
810	{
811	char * const pchBufR3 = pShared->aBufs[Item.s.idxBuffer].pchBufR3;
812	if (pchBufR3)
813	{
814	/*
815	* Do the flushing.
816	*/
817	PRTLOGGER const pLogger = Item.s.idxLogger == VMMLOGGER_IDX_REGULAR
818	? RTLogGetDefaultInstance() : RTLogRelGetDefaultInstance();
819	if (pLogger)
820	{
821	char szBefore[128];
822	RTStrPrintf(szBefore, sizeof(szBefore),
823	"FLUSH idCpu=%u idxLogger=%u idxBuffer=%u cbToFlush=%#x fFlushed=%RTbool cbDropped=%#x\n",
824	Item.s.idCpu, Item.s.idxLogger, Item.s.idxBuffer, cbToFlush,
825	pShared->aBufs[Item.s.idxBuffer].AuxDesc.fFlushedIndicator, pShared->cbDropped);
826	RTLogBulkWrite(pLogger, szBefore, pchBufR3, cbToFlush, "FLUSH DONE\n");
827	}
828	}
829	else
830	Log(("vmmR3LogFlusher: idCpu=%u idxLogger=%u idxBuffer=%u cbToFlush=%#x: Warning! No ring-3 buffer pointer!\n",
831	Item.s.idCpu, Item.s.idxLogger, Item.s.idxBuffer, cbToFlush));
832	}
833	else
834	Log(("vmmR3LogFlusher: idCpu=%u idxLogger=%u idxBuffer=%u cbToFlush=%#x: Warning! Exceeds %#x bytes buffer size!\n",
835	Item.s.idCpu, Item.s.idxLogger, Item.s.idxBuffer, cbToFlush, pShared->cbBuf));
836	}
837	else
838	Log(("vmmR3LogFlusher: idCpu=%u idxLogger=%u idxBuffer=%u cbToFlush=%#x: Warning! Zero bytes to flush!\n",
839	Item.s.idCpu, Item.s.idxLogger, Item.s.idxBuffer, cbToFlush));
840
841	/*
842	* Mark the descriptor as flushed and set the request flag for same.
843	*/
844	pShared->aBufs[Item.s.idxBuffer].AuxDesc.fFlushedIndicator = true;
845	}
846	else
847	{
848	Assert(Item.s.idCpu == UINT16_MAX);
849	Assert(Item.s.idxLogger == UINT8_MAX);
850	Assert(Item.s.idxBuffer == UINT8_MAX);
851	}
852	}
853	/*
854	* Interrupted can happen, just ignore it.
855	*/
856	else if (rc == VERR_INTERRUPTED)
857	{ /* ignore*/ }
858	/*
859	* The ring-0 termination code will set the shutdown flag and wake us
860	* up, and we should return with object destroyed. In case there is
861	* some kind of race, we might also get sempahore destroyed.
862	*/
863	else if ( rc == VERR_OBJECT_DESTROYED
864	\|\| rc == VERR_SEM_DESTROYED
865	\|\| rc == VERR_INVALID_HANDLE)
866	{
867	LogRel(("vmmR3LogFlusher: Terminating (%Rrc)\n", rc));
868	return VINF_SUCCESS;
869	}
870	/*
871	* There shouldn't be any other errors...
872	*/
873	else
874	{
875	LogRelMax(64, ("vmmR3LogFlusher: VMMR0_DO_VMMR0_LOG_FLUSHER -> %Rrc\n", rc));
876	AssertRC(rc);
877	RTThreadSleep(1);
878	}
879	}
880	}
881
882
883	/**
884	* Helper for VMM_FLUSH_R0_LOG that does the flushing.
885	*
886	* @param pVM The cross context VM structure.
887	* @param pVCpu The cross context virtual CPU structure of the calling
888	* EMT.
889	* @param pShared The shared logger data.
890	* @param idxBuf The buffer to flush.
891	* @param pDstLogger The destination IPRT logger.
892	*/
893	static void vmmR3LogReturnFlush(PVM pVM, PVMCPU pVCpu, PVMMR3CPULOGGER pShared, size_t idxBuf, PRTLOGGER pDstLogger)
894	{
895	uint32_t const cbToFlush = pShared->aBufs[idxBuf].AuxDesc.offBuf;
896	const char pszBefore = cbToFlush < 256 ? NULL : "FLUSH*\n";
897	const char pszAfter = cbToFlush < 256 ? NULL : "END*\n";
898
899	#if VMMLOGGER_BUFFER_COUNT > 1
900	/*
901	* When we have more than one log buffer, the flusher thread may still be
902	* working on the previous buffer when we get here.
903	*/
904	char szBefore[64];
905	if (pShared->cFlushing > 0)
906	{
907	STAM_REL_PROFILE_START(&pShared->StatRaces, a);
908	uint64_t const nsStart = RTTimeNanoTS();
909
910	/* A no-op, but it takes the lock and the hope is that we end up waiting
911	on the flusher to finish up. */
912	RTLogBulkWrite(pDstLogger, NULL, "", 0, NULL);
913	if (pShared->cFlushing != 0)
914	{
915	RTLogBulkWrite(pDstLogger, NULL, "", 0, NULL);
916
917	/* If no luck, go to ring-0 and to proper waiting. */
918	if (pShared->cFlushing != 0)
919	{
920	STAM_REL_COUNTER_INC(&pShared->StatRacesToR0);
921	SUPR3CallVMMR0Ex(VMCC_GET_VMR0_FOR_CALL(pVM), pVCpu->idCpu, VMMR0_DO_VMMR0_LOG_WAIT_FLUSHED, 0, NULL);
922	}
923	}
924
925	RTStrPrintf(szBefore, sizeof(szBefore), "%sFLUSH waited %'RU64 ns\n",
926	pShared->cFlushing == 0 ? "" : " MISORDERED", RTTimeNanoTS() - nsStart);
927	pszBefore = szBefore;
928	STAM_REL_PROFILE_STOP(&pShared->StatRaces, a);
929	}
930	#else
931	RT_NOREF(pVM, pVCpu);
932	#endif
933
934	RTLogBulkWrite(pDstLogger, pszBefore, pShared->aBufs[idxBuf].pchBufR3, cbToFlush, pszAfter);
935	pShared->aBufs[idxBuf].AuxDesc.fFlushedIndicator = true;
936	}
937
938
939	/**
940	* Gets the pointer to a buffer containing the R0/RC RTAssertMsg1Weak output.
941	*
942	* @returns Pointer to the buffer.
943	* @param pVM The cross context VM structure.
944	*/
945	VMMR3DECL(const char *) VMMR3GetRZAssertMsg1(PVM pVM)
946	{
947	return pVM->vmm.s.szRing0AssertMsg1;
948	}
949
950
951	/**
952	* Returns the VMCPU of the specified virtual CPU.
953	*
954	* @returns The VMCPU pointer. NULL if @a idCpu or @a pUVM is invalid.
955	*
956	* @param pUVM The user mode VM handle.
957	* @param idCpu The ID of the virtual CPU.
958	*/
959	VMMR3DECL(PVMCPU) VMMR3GetCpuByIdU(PUVM pUVM, RTCPUID idCpu)
960	{
961	UVM_ASSERT_VALID_EXT_RETURN(pUVM, NULL);
962	AssertReturn(idCpu < pUVM->cCpus, NULL);
963	VM_ASSERT_VALID_EXT_RETURN(pUVM->pVM, NULL);
964	return pUVM->pVM->apCpusR3[idCpu];
965	}
966
967
968	/**
969	* Gets the pointer to a buffer containing the R0/RC RTAssertMsg2Weak output.
970	*
971	* @returns Pointer to the buffer.
972	* @param pVM The cross context VM structure.
973	*/
974	VMMR3DECL(const char *) VMMR3GetRZAssertMsg2(PVM pVM)
975	{
976	return pVM->vmm.s.szRing0AssertMsg2;
977	}
978
979
980	/**
981	* Execute state save operation.
982	*
983	* @returns VBox status code.
984	* @param pVM The cross context VM structure.
985	* @param pSSM SSM operation handle.
986	*/
987	static DECLCALLBACK(int) vmmR3Save(PVM pVM, PSSMHANDLE pSSM)
988	{
989	LogFlow(("vmmR3Save:\n"));
990
991	/*
992	* Save the started/stopped state of all CPUs except 0 as it will always
993	* be running. This avoids breaking the saved state version. :-)
994	*/
995	for (VMCPUID i = 1; i < pVM->cCpus; i++)
996	SSMR3PutBool(pSSM, VMCPUSTATE_IS_STARTED(VMCPU_GET_STATE(pVM->apCpusR3[i])));
997
998	return SSMR3PutU32(pSSM, UINT32_MAX); /* terminator */
999	}
1000
1001
1002	/**
1003	* Execute state load operation.
1004	*
1005	* @returns VBox status code.
1006	* @param pVM The cross context VM structure.
1007	* @param pSSM SSM operation handle.
1008	* @param uVersion Data layout version.
1009	* @param uPass The data pass.
1010	*/
1011	static DECLCALLBACK(int) vmmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t uVersion, uint32_t uPass)
1012	{
1013	LogFlow(("vmmR3Load:\n"));
1014	Assert(uPass == SSM_PASS_FINAL); NOREF(uPass);
1015
1016	/*
1017	* Validate version.
1018	*/
1019	if ( uVersion != VMM_SAVED_STATE_VERSION
1020	&& uVersion != VMM_SAVED_STATE_VERSION_3_0)
1021	{
1022	AssertMsgFailed(("vmmR3Load: Invalid version uVersion=%u!\n", uVersion));
1023	return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
1024	}
1025
1026	if (uVersion <= VMM_SAVED_STATE_VERSION_3_0)
1027	{
1028	/* Ignore the stack bottom, stack pointer and stack bits. */
1029	RTRCPTR RCPtrIgnored;
1030	SSMR3GetRCPtr(pSSM, &RCPtrIgnored);
1031	SSMR3GetRCPtr(pSSM, &RCPtrIgnored);
1032	#ifdef RT_OS_DARWIN
1033	if ( SSMR3HandleVersion(pSSM) >= VBOX_FULL_VERSION_MAKE(3,0,0)
1034	&& SSMR3HandleVersion(pSSM) < VBOX_FULL_VERSION_MAKE(3,1,0)
1035	&& SSMR3HandleRevision(pSSM) >= 48858
1036	&& ( !strcmp(SSMR3HandleHostOSAndArch(pSSM), "darwin.x86")
1037	\|\| !strcmp(SSMR3HandleHostOSAndArch(pSSM), "") )
1038	)
1039	SSMR3Skip(pSSM, 16384);
1040	else
1041	SSMR3Skip(pSSM, 8192);
1042	#else
1043	SSMR3Skip(pSSM, 8192);
1044	#endif
1045	}
1046
1047	/*
1048	* Restore the VMCPU states. VCPU 0 is always started.
1049	*/
1050	VMCPU_SET_STATE(pVM->apCpusR3[0], VMCPUSTATE_STARTED);
1051	for (VMCPUID i = 1; i < pVM->cCpus; i++)
1052	{
1053	bool fStarted;
1054	int rc = SSMR3GetBool(pSSM, &fStarted);
1055	if (RT_FAILURE(rc))
1056	return rc;
1057	VMCPU_SET_STATE(pVM->apCpusR3[i], fStarted ? VMCPUSTATE_STARTED : VMCPUSTATE_STOPPED);
1058	}
1059
1060	/* terminator */
1061	uint32_t u32;
1062	int rc = SSMR3GetU32(pSSM, &u32);
1063	if (RT_FAILURE(rc))
1064	return rc;
1065	if (u32 != UINT32_MAX)
1066	{
1067	AssertMsgFailed(("u32=%#x\n", u32));
1068	return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
1069	}
1070	return VINF_SUCCESS;
1071	}
1072
1073
1074	/**
1075	* Suspends the CPU yielder.
1076	*
1077	* @param pVM The cross context VM structure.
1078	*/
1079	VMMR3_INT_DECL(void) VMMR3YieldSuspend(PVM pVM)
1080	{
1081	#if 0 /* pointless when timers doesn't run on EMT */
1082	VMCPU_ASSERT_EMT(pVM->apCpusR3[0]);
1083	if (!pVM->vmm.s.cYieldResumeMillies)
1084	{
1085	uint64_t u64Now = TMTimerGet(pVM, pVM->vmm.s.hYieldTimer);
1086	uint64_t u64Expire = TMTimerGetExpire(pVM, pVM->vmm.s.hYieldTimer);
1087	if (u64Now >= u64Expire \|\| u64Expire == ~(uint64_t)0)
1088	pVM->vmm.s.cYieldResumeMillies = pVM->vmm.s.cYieldEveryMillies;
1089	else
1090	pVM->vmm.s.cYieldResumeMillies = TMTimerToMilli(pVM, pVM->vmm.s.hYieldTimer, u64Expire - u64Now);
1091	TMTimerStop(pVM, pVM->vmm.s.hYieldTimer);
1092	}
1093	pVM->vmm.s.u64LastYield = RTTimeNanoTS();
1094	#else
1095	RT_NOREF(pVM);
1096	#endif
1097	}
1098
1099
1100	/**
1101	* Stops the CPU yielder.
1102	*
1103	* @param pVM The cross context VM structure.
1104	*/
1105	VMMR3_INT_DECL(void) VMMR3YieldStop(PVM pVM)
1106	{
1107	#if 0 /* pointless when timers doesn't run on EMT */
1108	if (!pVM->vmm.s.cYieldResumeMillies)
1109	TMTimerStop(pVM, pVM->vmm.s.hYieldTimer);
1110	pVM->vmm.s.cYieldResumeMillies = pVM->vmm.s.cYieldEveryMillies;
1111	pVM->vmm.s.u64LastYield = RTTimeNanoTS();
1112	#else
1113	RT_NOREF(pVM);
1114	#endif
1115	}
1116
1117
1118	/**
1119	* Resumes the CPU yielder when it has been a suspended or stopped.
1120	*
1121	* @param pVM The cross context VM structure.
1122	*/
1123	VMMR3_INT_DECL(void) VMMR3YieldResume(PVM pVM)
1124	{
1125	#if 0 /* pointless when timers doesn't run on EMT */
1126	if (pVM->vmm.s.cYieldResumeMillies)
1127	{
1128	TMTimerSetMillies(pVM, pVM->vmm.s.hYieldTimer, pVM->vmm.s.cYieldResumeMillies);
1129	pVM->vmm.s.cYieldResumeMillies = 0;
1130	}
1131	#else
1132	RT_NOREF(pVM);
1133	#endif
1134	}
1135
1136
1137	#if 0 /* pointless when timers doesn't run on EMT */
1138	/**
1139	* @callback_method_impl{FNTMTIMERINT, EMT yielder}
1140	*
1141	* @todo This is a UNI core/thread thing, really... Should be reconsidered.
1142	*/
1143	static DECLCALLBACK(void) vmmR3YieldEMT(PVM pVM, TMTIMERHANDLE hTimer, void *pvUser)
1144	{
1145	NOREF(pvUser);
1146
1147	/*
1148	* This really needs some careful tuning. While we shouldn't be too greedy since
1149	* that'll cause the rest of the system to stop up, we shouldn't be too nice either
1150	* because that'll cause us to stop up.
1151	*
1152	* The current logic is to use the default interval when there is no lag worth
1153	* mentioning, but when we start accumulating lag we don't bother yielding at all.
1154	*
1155	* (This depends on the TMCLOCK_VIRTUAL_SYNC to be scheduled before TMCLOCK_REAL
1156	* so the lag is up to date.)
1157	*/
1158	const uint64_t u64Lag = TMVirtualSyncGetLag(pVM);
1159	if ( u64Lag < 50000000 /* 50ms */
1160	\|\| ( u64Lag < 1000000000 /* 1s */
1161	&& RTTimeNanoTS() - pVM->vmm.s.u64LastYield < 500000000 /* 500 ms */)
1162	)
1163	{
1164	uint64_t u64Elapsed = RTTimeNanoTS();
1165	pVM->vmm.s.u64LastYield = u64Elapsed;
1166
1167	RTThreadYield();
1168
1169	#ifdef LOG_ENABLED
1170	u64Elapsed = RTTimeNanoTS() - u64Elapsed;
1171	Log(("vmmR3YieldEMT: %RI64 ns\n", u64Elapsed));
1172	#endif
1173	}
1174	TMTimerSetMillies(pVM, hTimer, pVM->vmm.s.cYieldEveryMillies);
1175	}
1176	#endif
1177
1178
1179	/**
1180	* Executes guest code (Intel VT-x and AMD-V).
1181	*
1182	* @param pVM The cross context VM structure.
1183	* @param pVCpu The cross context virtual CPU structure.
1184	*/
1185	VMMR3_INT_DECL(int) VMMR3HmRunGC(PVM pVM, PVMCPU pVCpu)
1186	{
1187	Log2(("VMMR3HmRunGC: (cs:rip=%04x:%RX64)\n", CPUMGetGuestCS(pVCpu), CPUMGetGuestRIP(pVCpu)));
1188
1189	int rc;
1190	do
1191	{
1192	#ifdef NO_SUPCALLR0VMM
1193	rc = VERR_GENERAL_FAILURE;
1194	#else
1195	rc = SUPR3CallVMMR0Fast(VMCC_GET_VMR0_FOR_CALL(pVM), VMMR0_DO_HM_RUN, pVCpu->idCpu);
1196	if (RT_LIKELY(rc == VINF_SUCCESS))
1197	rc = pVCpu->vmm.s.iLastGZRc;
1198	#endif
1199	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1200
1201	#if 0 /** @todo triggers too often */
1202	Assert(!VMCPU_FF_IS_SET(pVCpu, VMCPU_FF_TO_R3));
1203	#endif
1204
1205	/*
1206	* Flush the logs
1207	*/
1208	#ifdef LOG_ENABLED
1209	VMM_FLUSH_R0_LOG(pVM, pVCpu, &pVCpu->vmm.s.u.s.Logger, NULL);
1210	#endif
1211	VMM_FLUSH_R0_LOG(pVM, pVCpu, &pVCpu->vmm.s.u.s.RelLogger, RTLogRelGetDefaultInstance());
1212	if (rc != VERR_VMM_RING0_ASSERTION)
1213	{
1214	Log2(("VMMR3HmRunGC: returns %Rrc (cs:rip=%04x:%RX64)\n", rc, CPUMGetGuestCS(pVCpu), CPUMGetGuestRIP(pVCpu)));
1215	return rc;
1216	}
1217	return vmmR3HandleRing0Assert(pVM, pVCpu);
1218	}
1219
1220
1221	/**
1222	* Perform one of the fast I/O control VMMR0 operation.
1223	*
1224	* @returns VBox strict status code.
1225	* @param pVM The cross context VM structure.
1226	* @param pVCpu The cross context virtual CPU structure.
1227	* @param enmOperation The operation to perform.
1228	*/
1229	VMMR3_INT_DECL(VBOXSTRICTRC) VMMR3CallR0EmtFast(PVM pVM, PVMCPU pVCpu, VMMR0OPERATION enmOperation)
1230	{
1231	VBOXSTRICTRC rcStrict;
1232	do
1233	{
1234	#ifdef NO_SUPCALLR0VMM
1235	rcStrict = VERR_GENERAL_FAILURE;
1236	#else
1237	rcStrict = SUPR3CallVMMR0Fast(VMCC_GET_VMR0_FOR_CALL(pVM), enmOperation, pVCpu->idCpu);
1238	if (RT_LIKELY(rcStrict == VINF_SUCCESS))
1239	rcStrict = pVCpu->vmm.s.iLastGZRc;
1240	#endif
1241	} while (rcStrict == VINF_EM_RAW_INTERRUPT_HYPER);
1242
1243	/*
1244	* Flush the logs
1245	*/
1246	#ifdef LOG_ENABLED
1247	VMM_FLUSH_R0_LOG(pVM, pVCpu, &pVCpu->vmm.s.u.s.Logger, NULL);
1248	#endif
1249	VMM_FLUSH_R0_LOG(pVM, pVCpu, &pVCpu->vmm.s.u.s.RelLogger, RTLogRelGetDefaultInstance());
1250	if (rcStrict != VERR_VMM_RING0_ASSERTION)
1251	return rcStrict;
1252	return vmmR3HandleRing0Assert(pVM, pVCpu);
1253	}
1254
1255
1256	/**
1257	* VCPU worker for VMMR3SendStartupIpi.
1258	*
1259	* @param pVM The cross context VM structure.
1260	* @param idCpu Virtual CPU to perform SIPI on.
1261	* @param uVector The SIPI vector.
1262	*/
1263	static DECLCALLBACK(int) vmmR3SendStarupIpi(PVM pVM, VMCPUID idCpu, uint32_t uVector)
1264	{
1265	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
1266	VMCPU_ASSERT_EMT(pVCpu);
1267
1268	/*
1269	* In the INIT state, the target CPU is only responsive to an SIPI.
1270	* This is also true for when when the CPU is in VMX non-root mode.
1271	*
1272	* See AMD spec. 16.5 "Interprocessor Interrupts (IPI)".
1273	* See Intel spec. 26.6.2 "Activity State".
1274	*/
1275	if (EMGetState(pVCpu) != EMSTATE_WAIT_SIPI)
1276	return VINF_SUCCESS;
1277
1278	PCPUMCTX pCtx = CPUMQueryGuestCtxPtr(pVCpu);
1279	#ifdef VBOX_WITH_NESTED_HWVIRT_VMX
1280	if (CPUMIsGuestInVmxRootMode(pCtx))
1281	{
1282	/* If the CPU is in VMX non-root mode we must cause a VM-exit. */
1283	if (CPUMIsGuestInVmxNonRootMode(pCtx))
1284	return VBOXSTRICTRC_TODO(IEMExecVmxVmexitStartupIpi(pVCpu, uVector));
1285
1286	/* If the CPU is in VMX root mode (and not in VMX non-root mode) SIPIs are blocked. */
1287	return VINF_SUCCESS;
1288	}
1289	#endif
1290
1291	pCtx->cs.Sel = uVector << 8;
1292	pCtx->cs.ValidSel = uVector << 8;
1293	pCtx->cs.fFlags = CPUMSELREG_FLAGS_VALID;
1294	pCtx->cs.u64Base = uVector << 12;
1295	pCtx->cs.u32Limit = UINT32_C(0x0000ffff);
1296	pCtx->rip = 0;
1297
1298	Log(("vmmR3SendSipi for VCPU %d with vector %x\n", idCpu, uVector));
1299
1300	# if 1 /* If we keep the EMSTATE_WAIT_SIPI method, then move this to EM.cpp. */
1301	EMSetState(pVCpu, EMSTATE_HALTED);
1302	return VINF_EM_RESCHEDULE;
1303	# else /* And if we go the VMCPU::enmState way it can stay here. */
1304	VMCPU_ASSERT_STATE(pVCpu, VMCPUSTATE_STOPPED);
1305	VMCPU_SET_STATE(pVCpu, VMCPUSTATE_STARTED);
1306	return VINF_SUCCESS;
1307	# endif
1308	}
1309
1310
1311	/**
1312	* VCPU worker for VMMR3SendInitIpi.
1313	*
1314	* @returns VBox status code.
1315	* @param pVM The cross context VM structure.
1316	* @param idCpu Virtual CPU to perform SIPI on.
1317	*/
1318	static DECLCALLBACK(int) vmmR3SendInitIpi(PVM pVM, VMCPUID idCpu)
1319	{
1320	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
1321	VMCPU_ASSERT_EMT(pVCpu);
1322
1323	Log(("vmmR3SendInitIpi for VCPU %d\n", idCpu));
1324
1325	/** @todo r=ramshankar: We should probably block INIT signal when the CPU is in
1326	* wait-for-SIPI state. Verify. */
1327
1328	/* If the CPU is in VMX non-root mode, INIT signals cause VM-exits. */
1329	#ifdef VBOX_WITH_NESTED_HWVIRT_VMX
1330	PCCPUMCTX pCtx = CPUMQueryGuestCtxPtr(pVCpu);
1331	if (CPUMIsGuestInVmxNonRootMode(pCtx))
1332	return VBOXSTRICTRC_TODO(IEMExecVmxVmexit(pVCpu, VMX_EXIT_INIT_SIGNAL, 0 /* uExitQual */));
1333	#endif
1334
1335	/** @todo Figure out how to handle a SVM nested-guest intercepts here for INIT
1336	* IPI (e.g. SVM_EXIT_INIT). */
1337
1338	PGMR3ResetCpu(pVM, pVCpu);
1339	PDMR3ResetCpu(pVCpu); /* Only clears pending interrupts force flags */
1340	APICR3InitIpi(pVCpu);
1341	TRPMR3ResetCpu(pVCpu);
1342	CPUMR3ResetCpu(pVM, pVCpu);
1343	EMR3ResetCpu(pVCpu);
1344	HMR3ResetCpu(pVCpu);
1345	NEMR3ResetCpu(pVCpu, true /fInitIpi/);
1346
1347	/* This will trickle up on the target EMT. */
1348	return VINF_EM_WAIT_SIPI;
1349	}
1350
1351
1352	/**
1353	* Sends a Startup IPI to the virtual CPU by setting CS:EIP into
1354	* vector-dependent state and unhalting processor.
1355	*
1356	* @param pVM The cross context VM structure.
1357	* @param idCpu Virtual CPU to perform SIPI on.
1358	* @param uVector SIPI vector.
1359	*/
1360	VMMR3_INT_DECL(void) VMMR3SendStartupIpi(PVM pVM, VMCPUID idCpu, uint32_t uVector)
1361	{
1362	AssertReturnVoid(idCpu < pVM->cCpus);
1363
1364	int rc = VMR3ReqCallNoWait(pVM, idCpu, (PFNRT)vmmR3SendStarupIpi, 3, pVM, idCpu, uVector);
1365	AssertRC(rc);
1366	}
1367
1368
1369	/**
1370	* Sends init IPI to the virtual CPU.
1371	*
1372	* @param pVM The cross context VM structure.
1373	* @param idCpu Virtual CPU to perform int IPI on.
1374	*/
1375	VMMR3_INT_DECL(void) VMMR3SendInitIpi(PVM pVM, VMCPUID idCpu)
1376	{
1377	AssertReturnVoid(idCpu < pVM->cCpus);
1378
1379	int rc = VMR3ReqCallNoWait(pVM, idCpu, (PFNRT)vmmR3SendInitIpi, 2, pVM, idCpu);
1380	AssertRC(rc);
1381	}
1382
1383
1384	/**
1385	* Registers the guest memory range that can be used for patching.
1386	*
1387	* @returns VBox status code.
1388	* @param pVM The cross context VM structure.
1389	* @param pPatchMem Patch memory range.
1390	* @param cbPatchMem Size of the memory range.
1391	*/
1392	VMMR3DECL(int) VMMR3RegisterPatchMemory(PVM pVM, RTGCPTR pPatchMem, unsigned cbPatchMem)
1393	{
1394	VM_ASSERT_EMT(pVM);
1395	if (HMIsEnabled(pVM))
1396	return HMR3EnablePatching(pVM, pPatchMem, cbPatchMem);
1397
1398	return VERR_NOT_SUPPORTED;
1399	}
1400
1401
1402	/**
1403	* Deregisters the guest memory range that can be used for patching.
1404	*
1405	* @returns VBox status code.
1406	* @param pVM The cross context VM structure.
1407	* @param pPatchMem Patch memory range.
1408	* @param cbPatchMem Size of the memory range.
1409	*/
1410	VMMR3DECL(int) VMMR3DeregisterPatchMemory(PVM pVM, RTGCPTR pPatchMem, unsigned cbPatchMem)
1411	{
1412	if (HMIsEnabled(pVM))
1413	return HMR3DisablePatching(pVM, pPatchMem, cbPatchMem);
1414
1415	return VINF_SUCCESS;
1416	}
1417
1418
1419	/**
1420	* Common recursion handler for the other EMTs.
1421	*
1422	* @returns Strict VBox status code.
1423	* @param pVM The cross context VM structure.
1424	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
1425	* @param rcStrict Current status code to be combined with the one
1426	* from this recursion and returned.
1427	*/
1428	static VBOXSTRICTRC vmmR3EmtRendezvousCommonRecursion(PVM pVM, PVMCPU pVCpu, VBOXSTRICTRC rcStrict)
1429	{
1430	int rc2;
1431
1432	/*
1433	* We wait here while the initiator of this recursion reconfigures
1434	* everything. The last EMT to get in signals the initiator.
1435	*/
1436	if (ASMAtomicIncU32(&pVM->vmm.s.cRendezvousEmtsRecursingPush) == pVM->cCpus)
1437	{
1438	rc2 = RTSemEventSignal(pVM->vmm.s.hEvtRendezvousRecursionPushCaller);
1439	AssertLogRelRC(rc2);
1440	}
1441
1442	rc2 = RTSemEventMultiWait(pVM->vmm.s.hEvtMulRendezvousRecursionPush, RT_INDEFINITE_WAIT);
1443	AssertLogRelRC(rc2);
1444
1445	/*
1446	* Do the normal rendezvous processing.
1447	*/
1448	VBOXSTRICTRC rcStrict2 = vmmR3EmtRendezvousCommon(pVM, pVCpu, false /* fIsCaller */, pVM->vmm.s.fRendezvousFlags,
1449	pVM->vmm.s.pfnRendezvous, pVM->vmm.s.pvRendezvousUser);
1450
1451	/*
1452	* Wait for the initiator to restore everything.
1453	*/
1454	rc2 = RTSemEventMultiWait(pVM->vmm.s.hEvtMulRendezvousRecursionPop, RT_INDEFINITE_WAIT);
1455	AssertLogRelRC(rc2);
1456
1457	/*
1458	* Last thread out of here signals the initiator.
1459	*/
1460	if (ASMAtomicIncU32(&pVM->vmm.s.cRendezvousEmtsRecursingPop) == pVM->cCpus)
1461	{
1462	rc2 = RTSemEventSignal(pVM->vmm.s.hEvtRendezvousRecursionPopCaller);
1463	AssertLogRelRC(rc2);
1464	}
1465
1466	/*
1467	* Merge status codes and return.
1468	*/
1469	AssertRC(VBOXSTRICTRC_VAL(rcStrict2));
1470	if ( rcStrict2 != VINF_SUCCESS
1471	&& ( rcStrict == VINF_SUCCESS
1472	\|\| rcStrict > rcStrict2))
1473	rcStrict = rcStrict2;
1474	return rcStrict;
1475	}
1476
1477
1478	/**
1479	* Count returns and have the last non-caller EMT wake up the caller.
1480	*
1481	* @returns VBox strict informational status code for EM scheduling. No failures
1482	* will be returned here, those are for the caller only.
1483	*
1484	* @param pVM The cross context VM structure.
1485	* @param rcStrict The current accumulated recursive status code,
1486	* to be merged with i32RendezvousStatus and
1487	* returned.
1488	*/
1489	DECL_FORCE_INLINE(VBOXSTRICTRC) vmmR3EmtRendezvousNonCallerReturn(PVM pVM, VBOXSTRICTRC rcStrict)
1490	{
1491	VBOXSTRICTRC rcStrict2 = ASMAtomicReadS32(&pVM->vmm.s.i32RendezvousStatus);
1492
1493	uint32_t cReturned = ASMAtomicIncU32(&pVM->vmm.s.cRendezvousEmtsReturned);
1494	if (cReturned == pVM->cCpus - 1U)
1495	{
1496	int rc = RTSemEventSignal(pVM->vmm.s.hEvtRendezvousDoneCaller);
1497	AssertLogRelRC(rc);
1498	}
1499
1500	/*
1501	* Merge the status codes, ignoring error statuses in this code path.
1502	*/
1503	AssertLogRelMsgReturn( rcStrict2 <= VINF_SUCCESS
1504	\|\| (rcStrict2 >= VINF_EM_FIRST && rcStrict2 <= VINF_EM_LAST),
1505	("%Rrc\n", VBOXSTRICTRC_VAL(rcStrict2)),
1506	VERR_IPE_UNEXPECTED_INFO_STATUS);
1507
1508	if (RT_SUCCESS(rcStrict2))
1509	{
1510	if ( rcStrict2 != VINF_SUCCESS
1511	&& ( rcStrict == VINF_SUCCESS
1512	\|\| rcStrict > rcStrict2))
1513	rcStrict = rcStrict2;
1514	}
1515	return rcStrict;
1516	}
1517
1518
1519	/**
1520	* Common worker for VMMR3EmtRendezvous and VMMR3EmtRendezvousFF.
1521	*
1522	* @returns VBox strict informational status code for EM scheduling. No failures
1523	* will be returned here, those are for the caller only. When
1524	* fIsCaller is set, VINF_SUCCESS is always returned.
1525	*
1526	* @param pVM The cross context VM structure.
1527	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
1528	* @param fIsCaller Whether we're the VMMR3EmtRendezvous caller or
1529	* not.
1530	* @param fFlags The flags.
1531	* @param pfnRendezvous The callback.
1532	* @param pvUser The user argument for the callback.
1533	*/
1534	static VBOXSTRICTRC vmmR3EmtRendezvousCommon(PVM pVM, PVMCPU pVCpu, bool fIsCaller,
1535	uint32_t fFlags, PFNVMMEMTRENDEZVOUS pfnRendezvous, void *pvUser)
1536	{
1537	int rc;
1538	VBOXSTRICTRC rcStrictRecursion = VINF_SUCCESS;
1539
1540	/*
1541	* Enter, the last EMT triggers the next callback phase.
1542	*/
1543	uint32_t cEntered = ASMAtomicIncU32(&pVM->vmm.s.cRendezvousEmtsEntered);
1544	if (cEntered != pVM->cCpus)
1545	{
1546	if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONE_BY_ONE)
1547	{
1548	/* Wait for our turn. */
1549	for (;;)
1550	{
1551	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousEnterOneByOne, RT_INDEFINITE_WAIT);
1552	AssertLogRelRC(rc);
1553	if (!pVM->vmm.s.fRendezvousRecursion)
1554	break;
1555	rcStrictRecursion = vmmR3EmtRendezvousCommonRecursion(pVM, pVCpu, rcStrictRecursion);
1556	}
1557	}
1558	else if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ALL_AT_ONCE)
1559	{
1560	/* Wait for the last EMT to arrive and wake everyone up. */
1561	rc = RTSemEventMultiWait(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce, RT_INDEFINITE_WAIT);
1562	AssertLogRelRC(rc);
1563	Assert(!pVM->vmm.s.fRendezvousRecursion);
1564	}
1565	else if ( (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ASCENDING
1566	\|\| (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING)
1567	{
1568	/* Wait for our turn. */
1569	for (;;)
1570	{
1571	rc = RTSemEventWait(pVM->vmm.s.pahEvtRendezvousEnterOrdered[pVCpu->idCpu], RT_INDEFINITE_WAIT);
1572	AssertLogRelRC(rc);
1573	if (!pVM->vmm.s.fRendezvousRecursion)
1574	break;
1575	rcStrictRecursion = vmmR3EmtRendezvousCommonRecursion(pVM, pVCpu, rcStrictRecursion);
1576	}
1577	}
1578	else
1579	{
1580	Assert((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE);
1581
1582	/*
1583	* The execute once is handled specially to optimize the code flow.
1584	*
1585	* The last EMT to arrive will perform the callback and the other
1586	* EMTs will wait on the Done/DoneCaller semaphores (instead of
1587	* the EnterOneByOne/AllAtOnce) in the meanwhile. When the callback
1588	* returns, that EMT will initiate the normal return sequence.
1589	*/
1590	if (!fIsCaller)
1591	{
1592	for (;;)
1593	{
1594	rc = RTSemEventMultiWait(pVM->vmm.s.hEvtMulRendezvousDone, RT_INDEFINITE_WAIT);
1595	AssertLogRelRC(rc);
1596	if (!pVM->vmm.s.fRendezvousRecursion)
1597	break;
1598	rcStrictRecursion = vmmR3EmtRendezvousCommonRecursion(pVM, pVCpu, rcStrictRecursion);
1599	}
1600
1601	return vmmR3EmtRendezvousNonCallerReturn(pVM, rcStrictRecursion);
1602	}
1603	return VINF_SUCCESS;
1604	}
1605	}
1606	else
1607	{
1608	/*
1609	* All EMTs are waiting, clear the FF and take action according to the
1610	* execution method.
1611	*/
1612	VM_FF_CLEAR(pVM, VM_FF_EMT_RENDEZVOUS);
1613
1614	if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ALL_AT_ONCE)
1615	{
1616	/* Wake up everyone. */
1617	rc = RTSemEventMultiSignal(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce);
1618	AssertLogRelRC(rc);
1619	}
1620	else if ( (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ASCENDING
1621	\|\| (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING)
1622	{
1623	/* Figure out who to wake up and wake it up. If it's ourself, then
1624	it's easy otherwise wait for our turn. */
1625	VMCPUID iFirst = (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ASCENDING
1626	? 0
1627	: pVM->cCpus - 1U;
1628	if (pVCpu->idCpu != iFirst)
1629	{
1630	rc = RTSemEventSignal(pVM->vmm.s.pahEvtRendezvousEnterOrdered[iFirst]);
1631	AssertLogRelRC(rc);
1632	for (;;)
1633	{
1634	rc = RTSemEventWait(pVM->vmm.s.pahEvtRendezvousEnterOrdered[pVCpu->idCpu], RT_INDEFINITE_WAIT);
1635	AssertLogRelRC(rc);
1636	if (!pVM->vmm.s.fRendezvousRecursion)
1637	break;
1638	rcStrictRecursion = vmmR3EmtRendezvousCommonRecursion(pVM, pVCpu, rcStrictRecursion);
1639	}
1640	}
1641	}
1642	/* else: execute the handler on the current EMT and wake up one or more threads afterwards. */
1643	}
1644
1645
1646	/*
1647	* Do the callback and update the status if necessary.
1648	*/
1649	if ( !(fFlags & VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR)
1650	\|\| RT_SUCCESS(ASMAtomicUoReadS32(&pVM->vmm.s.i32RendezvousStatus)) )
1651	{
1652	VBOXSTRICTRC rcStrict2 = pfnRendezvous(pVM, pVCpu, pvUser);
1653	if (rcStrict2 != VINF_SUCCESS)
1654	{
1655	AssertLogRelMsg( rcStrict2 <= VINF_SUCCESS
1656	\|\| (rcStrict2 >= VINF_EM_FIRST && rcStrict2 <= VINF_EM_LAST),
1657	("%Rrc\n", VBOXSTRICTRC_VAL(rcStrict2)));
1658	int32_t i32RendezvousStatus;
1659	do
1660	{
1661	i32RendezvousStatus = ASMAtomicUoReadS32(&pVM->vmm.s.i32RendezvousStatus);
1662	if ( rcStrict2 == i32RendezvousStatus
1663	\|\| RT_FAILURE(i32RendezvousStatus)
1664	\|\| ( i32RendezvousStatus != VINF_SUCCESS
1665	&& rcStrict2 > i32RendezvousStatus))
1666	break;
1667	} while (!ASMAtomicCmpXchgS32(&pVM->vmm.s.i32RendezvousStatus, VBOXSTRICTRC_VAL(rcStrict2), i32RendezvousStatus));
1668	}
1669	}
1670
1671	/*
1672	* Increment the done counter and take action depending on whether we're
1673	* the last to finish callback execution.
1674	*/
1675	uint32_t cDone = ASMAtomicIncU32(&pVM->vmm.s.cRendezvousEmtsDone);
1676	if ( cDone != pVM->cCpus
1677	&& (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) != VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE)
1678	{
1679	/* Signal the next EMT? */
1680	if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONE_BY_ONE)
1681	{
1682	rc = RTSemEventSignal(pVM->vmm.s.hEvtRendezvousEnterOneByOne);
1683	AssertLogRelRC(rc);
1684	}
1685	else if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ASCENDING)
1686	{
1687	Assert(cDone == pVCpu->idCpu + 1U);
1688	rc = RTSemEventSignal(pVM->vmm.s.pahEvtRendezvousEnterOrdered[pVCpu->idCpu + 1U]);
1689	AssertLogRelRC(rc);
1690	}
1691	else if ((fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING)
1692	{
1693	Assert(pVM->cCpus - cDone == pVCpu->idCpu);
1694	rc = RTSemEventSignal(pVM->vmm.s.pahEvtRendezvousEnterOrdered[pVM->cCpus - cDone - 1U]);
1695	AssertLogRelRC(rc);
1696	}
1697
1698	/* Wait for the rest to finish (the caller waits on hEvtRendezvousDoneCaller). */
1699	if (!fIsCaller)
1700	{
1701	for (;;)
1702	{
1703	rc = RTSemEventMultiWait(pVM->vmm.s.hEvtMulRendezvousDone, RT_INDEFINITE_WAIT);
1704	AssertLogRelRC(rc);
1705	if (!pVM->vmm.s.fRendezvousRecursion)
1706	break;
1707	rcStrictRecursion = vmmR3EmtRendezvousCommonRecursion(pVM, pVCpu, rcStrictRecursion);
1708	}
1709	}
1710	}
1711	else
1712	{
1713	/* Callback execution is all done, tell the rest to return. */
1714	rc = RTSemEventMultiSignal(pVM->vmm.s.hEvtMulRendezvousDone);
1715	AssertLogRelRC(rc);
1716	}
1717
1718	if (!fIsCaller)
1719	return vmmR3EmtRendezvousNonCallerReturn(pVM, rcStrictRecursion);
1720	return rcStrictRecursion;
1721	}
1722
1723
1724	/**
1725	* Called in response to VM_FF_EMT_RENDEZVOUS.
1726	*
1727	* @returns VBox strict status code - EM scheduling. No errors will be returned
1728	* here, nor will any non-EM scheduling status codes be returned.
1729	*
1730	* @param pVM The cross context VM structure.
1731	* @param pVCpu The cross context virtual CPU structure of the calling EMT.
1732	*
1733	* @thread EMT
1734	*/
1735	VMMR3_INT_DECL(int) VMMR3EmtRendezvousFF(PVM pVM, PVMCPU pVCpu)
1736	{
1737	Assert(!pVCpu->vmm.s.fInRendezvous);
1738	Log(("VMMR3EmtRendezvousFF: EMT%#u\n", pVCpu->idCpu));
1739	pVCpu->vmm.s.fInRendezvous = true;
1740	VBOXSTRICTRC rcStrict = vmmR3EmtRendezvousCommon(pVM, pVCpu, false /* fIsCaller */, pVM->vmm.s.fRendezvousFlags,
1741	pVM->vmm.s.pfnRendezvous, pVM->vmm.s.pvRendezvousUser);
1742	pVCpu->vmm.s.fInRendezvous = false;
1743	Log(("VMMR3EmtRendezvousFF: EMT%#u returns %Rrc\n", pVCpu->idCpu, VBOXSTRICTRC_VAL(rcStrict)));
1744	return VBOXSTRICTRC_TODO(rcStrict);
1745	}
1746
1747
1748	/**
1749	* Helper for resetting an single wakeup event sempahore.
1750	*
1751	* @returns VERR_TIMEOUT on success, RTSemEventWait status otherwise.
1752	* @param hEvt The event semaphore to reset.
1753	*/
1754	static int vmmR3HlpResetEvent(RTSEMEVENT hEvt)
1755	{
1756	for (uint32_t cLoops = 0; ; cLoops++)
1757	{
1758	int rc = RTSemEventWait(hEvt, 0 /cMsTimeout/);
1759	if (rc != VINF_SUCCESS \|\| cLoops > _4K)
1760	return rc;
1761	}
1762	}
1763
1764
1765	/**
1766	* Worker for VMMR3EmtRendezvous that handles recursion.
1767	*
1768	* @returns VBox strict status code. This will be the first error,
1769	* VINF_SUCCESS, or an EM scheduling status code.
1770	*
1771	* @param pVM The cross context VM structure.
1772	* @param pVCpu The cross context virtual CPU structure of the
1773	* calling EMT.
1774	* @param fFlags Flags indicating execution methods. See
1775	* grp_VMMR3EmtRendezvous_fFlags.
1776	* @param pfnRendezvous The callback.
1777	* @param pvUser User argument for the callback.
1778	*
1779	* @thread EMT(pVCpu)
1780	*/
1781	static VBOXSTRICTRC vmmR3EmtRendezvousRecursive(PVM pVM, PVMCPU pVCpu, uint32_t fFlags,
1782	PFNVMMEMTRENDEZVOUS pfnRendezvous, void *pvUser)
1783	{
1784	Log(("vmmR3EmtRendezvousRecursive: %#x EMT#%u depth=%d\n", fFlags, pVCpu->idCpu, pVM->vmm.s.cRendezvousRecursions));
1785	AssertLogRelReturn(pVM->vmm.s.cRendezvousRecursions < 3, VERR_DEADLOCK);
1786	Assert(pVCpu->vmm.s.fInRendezvous);
1787
1788	/*
1789	* Save the current state.
1790	*/
1791	uint32_t const fParentFlags = pVM->vmm.s.fRendezvousFlags;
1792	uint32_t const cParentDone = pVM->vmm.s.cRendezvousEmtsDone;
1793	int32_t const iParentStatus = pVM->vmm.s.i32RendezvousStatus;
1794	PFNVMMEMTRENDEZVOUS const pfnParent = pVM->vmm.s.pfnRendezvous;
1795	void * const pvParentUser = pVM->vmm.s.pvRendezvousUser;
1796
1797	/*
1798	* Check preconditions and save the current state.
1799	*/
1800	AssertReturn( (fParentFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ASCENDING
1801	\|\| (fParentFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING
1802	\|\| (fParentFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONE_BY_ONE
1803	\|\| (fParentFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE,
1804	VERR_INTERNAL_ERROR);
1805	AssertReturn(pVM->vmm.s.cRendezvousEmtsEntered == pVM->cCpus, VERR_INTERNAL_ERROR_2);
1806	AssertReturn(pVM->vmm.s.cRendezvousEmtsReturned == 0, VERR_INTERNAL_ERROR_3);
1807
1808	/*
1809	* Reset the recursion prep and pop semaphores.
1810	*/
1811	int rc = RTSemEventMultiReset(pVM->vmm.s.hEvtMulRendezvousRecursionPush);
1812	AssertLogRelRCReturn(rc, rc);
1813	rc = RTSemEventMultiReset(pVM->vmm.s.hEvtMulRendezvousRecursionPop);
1814	AssertLogRelRCReturn(rc, rc);
1815	rc = vmmR3HlpResetEvent(pVM->vmm.s.hEvtRendezvousRecursionPushCaller);
1816	AssertLogRelMsgReturn(rc == VERR_TIMEOUT, ("%Rrc\n", rc), RT_FAILURE_NP(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS);
1817	rc = vmmR3HlpResetEvent(pVM->vmm.s.hEvtRendezvousRecursionPopCaller);
1818	AssertLogRelMsgReturn(rc == VERR_TIMEOUT, ("%Rrc\n", rc), RT_FAILURE_NP(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS);
1819
1820	/*
1821	* Usher the other thread into the recursion routine.
1822	*/
1823	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsRecursingPush, 0);
1824	ASMAtomicWriteBool(&pVM->vmm.s.fRendezvousRecursion, true);
1825
1826	uint32_t cLeft = pVM->cCpus - (cParentDone + 1U);
1827	if ((fParentFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONE_BY_ONE)
1828	while (cLeft-- > 0)
1829	{
1830	rc = RTSemEventSignal(pVM->vmm.s.hEvtRendezvousEnterOneByOne);
1831	AssertLogRelRC(rc);
1832	}
1833	else if ((fParentFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ASCENDING)
1834	{
1835	Assert(cLeft == pVM->cCpus - (pVCpu->idCpu + 1U));
1836	for (VMCPUID iCpu = pVCpu->idCpu + 1U; iCpu < pVM->cCpus; iCpu++)
1837	{
1838	rc = RTSemEventSignal(pVM->vmm.s.pahEvtRendezvousEnterOrdered[iCpu]);
1839	AssertLogRelRC(rc);
1840	}
1841	}
1842	else if ((fParentFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING)
1843	{
1844	Assert(cLeft == pVCpu->idCpu);
1845	for (VMCPUID iCpu = pVCpu->idCpu; iCpu > 0; iCpu--)
1846	{
1847	rc = RTSemEventSignal(pVM->vmm.s.pahEvtRendezvousEnterOrdered[iCpu - 1U]);
1848	AssertLogRelRC(rc);
1849	}
1850	}
1851	else
1852	AssertLogRelReturn((fParentFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE,
1853	VERR_INTERNAL_ERROR_4);
1854
1855	rc = RTSemEventMultiSignal(pVM->vmm.s.hEvtMulRendezvousDone);
1856	AssertLogRelRC(rc);
1857	rc = RTSemEventSignal(pVM->vmm.s.hEvtRendezvousDoneCaller);
1858	AssertLogRelRC(rc);
1859
1860
1861	/*
1862	* Wait for the EMTs to wake up and get out of the parent rendezvous code.
1863	*/
1864	if (ASMAtomicIncU32(&pVM->vmm.s.cRendezvousEmtsRecursingPush) != pVM->cCpus)
1865	{
1866	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousRecursionPushCaller, RT_INDEFINITE_WAIT);
1867	AssertLogRelRC(rc);
1868	}
1869
1870	ASMAtomicWriteBool(&pVM->vmm.s.fRendezvousRecursion, false);
1871
1872	/*
1873	* Clear the slate and setup the new rendezvous.
1874	*/
1875	for (VMCPUID i = 0; i < pVM->cCpus; i++)
1876	{
1877	rc = vmmR3HlpResetEvent(pVM->vmm.s.pahEvtRendezvousEnterOrdered[i]);
1878	AssertLogRelMsg(rc == VERR_TIMEOUT, ("%Rrc\n", rc));
1879	}
1880	rc = vmmR3HlpResetEvent(pVM->vmm.s.hEvtRendezvousEnterOneByOne); AssertLogRelMsg(rc == VERR_TIMEOUT, ("%Rrc\n", rc));
1881	rc = RTSemEventMultiReset(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce); AssertLogRelRC(rc);
1882	rc = RTSemEventMultiReset(pVM->vmm.s.hEvtMulRendezvousDone); AssertLogRelRC(rc);
1883	rc = vmmR3HlpResetEvent(pVM->vmm.s.hEvtRendezvousDoneCaller); AssertLogRelMsg(rc == VERR_TIMEOUT, ("%Rrc\n", rc));
1884
1885	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsEntered, 0);
1886	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsDone, 0);
1887	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsReturned, 0);
1888	ASMAtomicWriteS32(&pVM->vmm.s.i32RendezvousStatus, VINF_SUCCESS);
1889	ASMAtomicWritePtr((void * volatile )&pVM->vmm.s.pfnRendezvous, (void )(uintptr_t)pfnRendezvous);
1890	ASMAtomicWritePtr(&pVM->vmm.s.pvRendezvousUser, pvUser);
1891	ASMAtomicWriteU32(&pVM->vmm.s.fRendezvousFlags, fFlags);
1892	ASMAtomicIncU32(&pVM->vmm.s.cRendezvousRecursions);
1893
1894	/*
1895	* We're ready to go now, do normal rendezvous processing.
1896	*/
1897	rc = RTSemEventMultiSignal(pVM->vmm.s.hEvtMulRendezvousRecursionPush);
1898	AssertLogRelRC(rc);
1899
1900	VBOXSTRICTRC rcStrict = vmmR3EmtRendezvousCommon(pVM, pVCpu, true /fIsCaller/, fFlags, pfnRendezvous, pvUser);
1901
1902	/*
1903	* The caller waits for the other EMTs to be done, return and waiting on the
1904	* pop semaphore.
1905	*/
1906	for (;;)
1907	{
1908	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousDoneCaller, RT_INDEFINITE_WAIT);
1909	AssertLogRelRC(rc);
1910	if (!pVM->vmm.s.fRendezvousRecursion)
1911	break;
1912	rcStrict = vmmR3EmtRendezvousCommonRecursion(pVM, pVCpu, rcStrict);
1913	}
1914
1915	/*
1916	* Get the return code and merge it with the above recursion status.
1917	*/
1918	VBOXSTRICTRC rcStrict2 = pVM->vmm.s.i32RendezvousStatus;
1919	if ( rcStrict2 != VINF_SUCCESS
1920	&& ( rcStrict == VINF_SUCCESS
1921	\|\| rcStrict > rcStrict2))
1922	rcStrict = rcStrict2;
1923
1924	/*
1925	* Restore the parent rendezvous state.
1926	*/
1927	for (VMCPUID i = 0; i < pVM->cCpus; i++)
1928	{
1929	rc = vmmR3HlpResetEvent(pVM->vmm.s.pahEvtRendezvousEnterOrdered[i]);
1930	AssertLogRelMsg(rc == VERR_TIMEOUT, ("%Rrc\n", rc));
1931	}
1932	rc = vmmR3HlpResetEvent(pVM->vmm.s.hEvtRendezvousEnterOneByOne); AssertLogRelMsg(rc == VERR_TIMEOUT, ("%Rrc\n", rc));
1933	rc = RTSemEventMultiReset(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce); AssertLogRelRC(rc);
1934	rc = RTSemEventMultiReset(pVM->vmm.s.hEvtMulRendezvousDone); AssertLogRelRC(rc);
1935	rc = vmmR3HlpResetEvent(pVM->vmm.s.hEvtRendezvousDoneCaller); AssertLogRelMsg(rc == VERR_TIMEOUT, ("%Rrc\n", rc));
1936
1937	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsEntered, pVM->cCpus);
1938	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsReturned, 0);
1939	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsDone, cParentDone);
1940	ASMAtomicWriteS32(&pVM->vmm.s.i32RendezvousStatus, iParentStatus);
1941	ASMAtomicWriteU32(&pVM->vmm.s.fRendezvousFlags, fParentFlags);
1942	ASMAtomicWritePtr(&pVM->vmm.s.pvRendezvousUser, pvParentUser);
1943	ASMAtomicWritePtr((void * volatile )&pVM->vmm.s.pfnRendezvous, (void )(uintptr_t)pfnParent);
1944
1945	/*
1946	* Usher the other EMTs back to their parent recursion routine, waiting
1947	* for them to all get there before we return (makes sure they've been
1948	* scheduled and are past the pop event sem, see below).
1949	*/
1950	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsRecursingPop, 0);
1951	rc = RTSemEventMultiSignal(pVM->vmm.s.hEvtMulRendezvousRecursionPop);
1952	AssertLogRelRC(rc);
1953
1954	if (ASMAtomicIncU32(&pVM->vmm.s.cRendezvousEmtsRecursingPop) != pVM->cCpus)
1955	{
1956	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousRecursionPopCaller, RT_INDEFINITE_WAIT);
1957	AssertLogRelRC(rc);
1958	}
1959
1960	/*
1961	* We must reset the pop semaphore on the way out (doing the pop caller too,
1962	* just in case). The parent may be another recursion.
1963	*/
1964	rc = RTSemEventMultiReset(pVM->vmm.s.hEvtMulRendezvousRecursionPop); AssertLogRelRC(rc);
1965	rc = vmmR3HlpResetEvent(pVM->vmm.s.hEvtRendezvousRecursionPopCaller); AssertLogRelMsg(rc == VERR_TIMEOUT, ("%Rrc\n", rc));
1966
1967	ASMAtomicDecU32(&pVM->vmm.s.cRendezvousRecursions);
1968
1969	Log(("vmmR3EmtRendezvousRecursive: %#x EMT#%u depth=%d returns %Rrc\n",
1970	fFlags, pVCpu->idCpu, pVM->vmm.s.cRendezvousRecursions, VBOXSTRICTRC_VAL(rcStrict)));
1971	return rcStrict;
1972	}
1973
1974
1975	/**
1976	* EMT rendezvous.
1977	*
1978	* Gathers all the EMTs and execute some code on each of them, either in a one
1979	* by one fashion or all at once.
1980	*
1981	* @returns VBox strict status code. This will be the first error,
1982	* VINF_SUCCESS, or an EM scheduling status code.
1983	*
1984	* @retval VERR_DEADLOCK if recursion is attempted using a rendezvous type that
1985	* doesn't support it or if the recursion is too deep.
1986	*
1987	* @param pVM The cross context VM structure.
1988	* @param fFlags Flags indicating execution methods. See
1989	* grp_VMMR3EmtRendezvous_fFlags. The one-by-one,
1990	* descending and ascending rendezvous types support
1991	* recursion from inside @a pfnRendezvous.
1992	* @param pfnRendezvous The callback.
1993	* @param pvUser User argument for the callback.
1994	*
1995	* @thread Any.
1996	*/
1997	VMMR3DECL(int) VMMR3EmtRendezvous(PVM pVM, uint32_t fFlags, PFNVMMEMTRENDEZVOUS pfnRendezvous, void *pvUser)
1998	{
1999	/*
2000	* Validate input.
2001	*/
2002	AssertReturn(pVM, VERR_INVALID_VM_HANDLE);
2003	AssertMsg( (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) != VMMEMTRENDEZVOUS_FLAGS_TYPE_INVALID
2004	&& (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) <= VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING
2005	&& !(fFlags & ~VMMEMTRENDEZVOUS_FLAGS_VALID_MASK), ("%#x\n", fFlags));
2006	AssertMsg( !(fFlags & VMMEMTRENDEZVOUS_FLAGS_STOP_ON_ERROR)
2007	\|\| ( (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) != VMMEMTRENDEZVOUS_FLAGS_TYPE_ALL_AT_ONCE
2008	&& (fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) != VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE),
2009	("type %u\n", fFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK));
2010
2011	VBOXSTRICTRC rcStrict;
2012	PVMCPU pVCpu = VMMGetCpu(pVM);
2013	if (!pVCpu)
2014	{
2015	/*
2016	* Forward the request to an EMT thread.
2017	*/
2018	Log(("VMMR3EmtRendezvous: %#x non-EMT\n", fFlags));
2019	if (!(fFlags & VMMEMTRENDEZVOUS_FLAGS_PRIORITY))
2020	rcStrict = VMR3ReqCallWait(pVM, VMCPUID_ANY, (PFNRT)VMMR3EmtRendezvous, 4, pVM, fFlags, pfnRendezvous, pvUser);
2021	else
2022	rcStrict = VMR3ReqPriorityCallWait(pVM, VMCPUID_ANY, (PFNRT)VMMR3EmtRendezvous, 4, pVM, fFlags, pfnRendezvous, pvUser);
2023	Log(("VMMR3EmtRendezvous: %#x non-EMT returns %Rrc\n", fFlags, VBOXSTRICTRC_VAL(rcStrict)));
2024	}
2025	else if ( pVM->cCpus == 1
2026	\|\| ( pVM->enmVMState == VMSTATE_DESTROYING
2027	&& VMR3GetActiveEmts(pVM->pUVM) < pVM->cCpus ) )
2028	{
2029	/*
2030	* Shortcut for the single EMT case.
2031	*
2032	* We also ends up here if EMT(0) (or others) tries to issue a rendezvous
2033	* during vmR3Destroy after other emulation threads have started terminating.
2034	*/
2035	if (!pVCpu->vmm.s.fInRendezvous)
2036	{
2037	Log(("VMMR3EmtRendezvous: %#x EMT (uni)\n", fFlags));
2038	pVCpu->vmm.s.fInRendezvous = true;
2039	pVM->vmm.s.fRendezvousFlags = fFlags;
2040	rcStrict = pfnRendezvous(pVM, pVCpu, pvUser);
2041	pVCpu->vmm.s.fInRendezvous = false;
2042	}
2043	else
2044	{
2045	/* Recursion. Do the same checks as in the SMP case. */
2046	Log(("VMMR3EmtRendezvous: %#x EMT (uni), recursion depth=%d\n", fFlags, pVM->vmm.s.cRendezvousRecursions));
2047	uint32_t fType = pVM->vmm.s.fRendezvousFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK;
2048	AssertLogRelReturn( !pVCpu->vmm.s.fInRendezvous
2049	\|\| fType == VMMEMTRENDEZVOUS_FLAGS_TYPE_ASCENDING
2050	\|\| fType == VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING
2051	\|\| fType == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONE_BY_ONE
2052	\|\| fType == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE
2053	, VERR_DEADLOCK);
2054
2055	AssertLogRelReturn(pVM->vmm.s.cRendezvousRecursions < 3, VERR_DEADLOCK);
2056	pVM->vmm.s.cRendezvousRecursions++;
2057	uint32_t const fParentFlags = pVM->vmm.s.fRendezvousFlags;
2058	pVM->vmm.s.fRendezvousFlags = fFlags;
2059
2060	rcStrict = pfnRendezvous(pVM, pVCpu, pvUser);
2061
2062	pVM->vmm.s.fRendezvousFlags = fParentFlags;
2063	pVM->vmm.s.cRendezvousRecursions--;
2064	}
2065	Log(("VMMR3EmtRendezvous: %#x EMT (uni) returns %Rrc\n", fFlags, VBOXSTRICTRC_VAL(rcStrict)));
2066	}
2067	else
2068	{
2069	/*
2070	* Spin lock. If busy, check for recursion, if not recursing wait for
2071	* the other EMT to finish while keeping a lookout for the RENDEZVOUS FF.
2072	*/
2073	int rc;
2074	rcStrict = VINF_SUCCESS;
2075	if (RT_UNLIKELY(!ASMAtomicCmpXchgU32(&pVM->vmm.s.u32RendezvousLock, 0x77778888, 0)))
2076	{
2077	/* Allow recursion in some cases. */
2078	if ( pVCpu->vmm.s.fInRendezvous
2079	&& ( (pVM->vmm.s.fRendezvousFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ASCENDING
2080	\|\| (pVM->vmm.s.fRendezvousFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_DESCENDING
2081	\|\| (pVM->vmm.s.fRendezvousFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONE_BY_ONE
2082	\|\| (pVM->vmm.s.fRendezvousFlags & VMMEMTRENDEZVOUS_FLAGS_TYPE_MASK) == VMMEMTRENDEZVOUS_FLAGS_TYPE_ONCE
2083	))
2084	return VBOXSTRICTRC_TODO(vmmR3EmtRendezvousRecursive(pVM, pVCpu, fFlags, pfnRendezvous, pvUser));
2085
2086	AssertLogRelMsgReturn(!pVCpu->vmm.s.fInRendezvous, ("fRendezvousFlags=%#x\n", pVM->vmm.s.fRendezvousFlags),
2087	VERR_DEADLOCK);
2088
2089	Log(("VMMR3EmtRendezvous: %#x EMT#%u, waiting for lock...\n", fFlags, pVCpu->idCpu));
2090	while (!ASMAtomicCmpXchgU32(&pVM->vmm.s.u32RendezvousLock, 0x77778888, 0))
2091	{
2092	if (VM_FF_IS_SET(pVM, VM_FF_EMT_RENDEZVOUS))
2093	{
2094	rc = VMMR3EmtRendezvousFF(pVM, pVCpu);
2095	if ( rc != VINF_SUCCESS
2096	&& ( rcStrict == VINF_SUCCESS
2097	\|\| rcStrict > rc))
2098	rcStrict = rc;
2099	/** @todo Perhaps deal with termination here? */
2100	}
2101	ASMNopPause();
2102	}
2103	}
2104
2105	Log(("VMMR3EmtRendezvous: %#x EMT#%u\n", fFlags, pVCpu->idCpu));
2106	Assert(!VM_FF_IS_SET(pVM, VM_FF_EMT_RENDEZVOUS));
2107	Assert(!pVCpu->vmm.s.fInRendezvous);
2108	pVCpu->vmm.s.fInRendezvous = true;
2109
2110	/*
2111	* Clear the slate and setup the rendezvous. This is a semaphore ping-pong orgy. :-)
2112	*/
2113	for (VMCPUID i = 0; i < pVM->cCpus; i++)
2114	{
2115	rc = RTSemEventWait(pVM->vmm.s.pahEvtRendezvousEnterOrdered[i], 0);
2116	AssertLogRelMsg(rc == VERR_TIMEOUT \|\| rc == VINF_SUCCESS, ("%Rrc\n", rc));
2117	}
2118	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousEnterOneByOne, 0); AssertLogRelMsg(rc == VERR_TIMEOUT \|\| rc == VINF_SUCCESS, ("%Rrc\n", rc));
2119	rc = RTSemEventMultiReset(pVM->vmm.s.hEvtMulRendezvousEnterAllAtOnce); AssertLogRelRC(rc);
2120	rc = RTSemEventMultiReset(pVM->vmm.s.hEvtMulRendezvousDone); AssertLogRelRC(rc);
2121	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousDoneCaller, 0); AssertLogRelMsg(rc == VERR_TIMEOUT \|\| rc == VINF_SUCCESS, ("%Rrc\n", rc));
2122	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsEntered, 0);
2123	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsDone, 0);
2124	ASMAtomicWriteU32(&pVM->vmm.s.cRendezvousEmtsReturned, 0);
2125	ASMAtomicWriteS32(&pVM->vmm.s.i32RendezvousStatus, VINF_SUCCESS);
2126	ASMAtomicWritePtr((void * volatile )&pVM->vmm.s.pfnRendezvous, (void )(uintptr_t)pfnRendezvous);
2127	ASMAtomicWritePtr(&pVM->vmm.s.pvRendezvousUser, pvUser);
2128	ASMAtomicWriteU32(&pVM->vmm.s.fRendezvousFlags, fFlags);
2129
2130	/*
2131	* Set the FF and poke the other EMTs.
2132	*/
2133	VM_FF_SET(pVM, VM_FF_EMT_RENDEZVOUS);
2134	VMR3NotifyGlobalFFU(pVM->pUVM, VMNOTIFYFF_FLAGS_POKE);
2135
2136	/*
2137	* Do the same ourselves.
2138	*/
2139	VBOXSTRICTRC rcStrict2 = vmmR3EmtRendezvousCommon(pVM, pVCpu, true /* fIsCaller */, fFlags, pfnRendezvous, pvUser);
2140
2141	/*
2142	* The caller waits for the other EMTs to be done and return before doing
2143	* the cleanup. This makes away with wakeup / reset races we would otherwise
2144	* risk in the multiple release event semaphore code (hEvtRendezvousDoneCaller).
2145	*/
2146	for (;;)
2147	{
2148	rc = RTSemEventWait(pVM->vmm.s.hEvtRendezvousDoneCaller, RT_INDEFINITE_WAIT);
2149	AssertLogRelRC(rc);
2150	if (!pVM->vmm.s.fRendezvousRecursion)
2151	break;
2152	rcStrict2 = vmmR3EmtRendezvousCommonRecursion(pVM, pVCpu, rcStrict2);
2153	}
2154
2155	/*
2156	* Get the return code and clean up a little bit.
2157	*/
2158	VBOXSTRICTRC rcStrict3 = pVM->vmm.s.i32RendezvousStatus;
2159	ASMAtomicWriteNullPtr((void * volatile *)&pVM->vmm.s.pfnRendezvous);
2160
2161	ASMAtomicWriteU32(&pVM->vmm.s.u32RendezvousLock, 0);
2162	pVCpu->vmm.s.fInRendezvous = false;
2163
2164	/*
2165	* Merge rcStrict, rcStrict2 and rcStrict3.
2166	*/
2167	AssertRC(VBOXSTRICTRC_VAL(rcStrict));
2168	AssertRC(VBOXSTRICTRC_VAL(rcStrict2));
2169	if ( rcStrict2 != VINF_SUCCESS
2170	&& ( rcStrict == VINF_SUCCESS
2171	\|\| rcStrict > rcStrict2))
2172	rcStrict = rcStrict2;
2173	if ( rcStrict3 != VINF_SUCCESS
2174	&& ( rcStrict == VINF_SUCCESS
2175	\|\| rcStrict > rcStrict3))
2176	rcStrict = rcStrict3;
2177	Log(("VMMR3EmtRendezvous: %#x EMT#%u returns %Rrc\n", fFlags, pVCpu->idCpu, VBOXSTRICTRC_VAL(rcStrict)));
2178	}
2179
2180	AssertLogRelMsgReturn( rcStrict <= VINF_SUCCESS
2181	\|\| (rcStrict >= VINF_EM_FIRST && rcStrict <= VINF_EM_LAST),
2182	("%Rrc\n", VBOXSTRICTRC_VAL(rcStrict)),
2183	VERR_IPE_UNEXPECTED_INFO_STATUS);
2184	return VBOXSTRICTRC_VAL(rcStrict);
2185	}
2186
2187
2188	/**
2189	* Interface for vmR3SetHaltMethodU.
2190	*
2191	* @param pVCpu The cross context virtual CPU structure of the
2192	* calling EMT.
2193	* @param fMayHaltInRing0 The new state.
2194	* @param cNsSpinBlockThreshold The spin-vs-blocking threashold.
2195	* @thread EMT(pVCpu)
2196	*
2197	* @todo Move the EMT handling to VMM (or EM). I soooooo regret that VM
2198	* component.
2199	*/
2200	VMMR3_INT_DECL(void) VMMR3SetMayHaltInRing0(PVMCPU pVCpu, bool fMayHaltInRing0, uint32_t cNsSpinBlockThreshold)
2201	{
2202	LogFlow(("VMMR3SetMayHaltInRing0(#%u, %d, %u)\n", pVCpu->idCpu, fMayHaltInRing0, cNsSpinBlockThreshold));
2203	pVCpu->vmm.s.fMayHaltInRing0 = fMayHaltInRing0;
2204	pVCpu->vmm.s.cNsSpinBlockThreshold = cNsSpinBlockThreshold;
2205	}
2206
2207
2208	/**
2209	* Read from the ring 0 jump buffer stack.
2210	*
2211	* @returns VBox status code.
2212	*
2213	* @param pVM The cross context VM structure.
2214	* @param idCpu The ID of the source CPU context (for the address).
2215	* @param R0Addr Where to start reading.
2216	* @param pvBuf Where to store the data we've read.
2217	* @param cbRead The number of bytes to read.
2218	*/
2219	VMMR3_INT_DECL(int) VMMR3ReadR0Stack(PVM pVM, VMCPUID idCpu, RTHCUINTPTR R0Addr, void *pvBuf, size_t cbRead)
2220	{
2221	PVMCPU pVCpu = VMMGetCpuById(pVM, idCpu);
2222	AssertReturn(pVCpu, VERR_INVALID_PARAMETER);
2223	AssertReturn(cbRead < ~(size_t)0 / 2, VERR_INVALID_PARAMETER);
2224
2225	/*
2226	* Hopefully we've got all the requested bits. If not supply what we
2227	* can and zero the remaining stuff.
2228	*/
2229	RTHCUINTPTR off = R0Addr - pVCpu->vmm.s.AssertJmpBuf.UnwindSp;
2230	if (off < pVCpu->vmm.s.AssertJmpBuf.cbStackValid)
2231	{
2232	size_t const cbValid = pVCpu->vmm.s.AssertJmpBuf.cbStackValid - off;
2233	if (cbRead <= cbValid)
2234	{
2235	memcpy(pvBuf, &pVCpu->vmm.s.abAssertStack[off], cbRead);
2236	return VINF_SUCCESS;
2237	}
2238
2239	memcpy(pvBuf, &pVCpu->vmm.s.abAssertStack[off], cbValid);
2240	RT_BZERO((uint8_t *)pvBuf + cbValid, cbRead - cbValid);
2241	}
2242	else
2243	RT_BZERO(pvBuf, cbRead);
2244
2245	/*
2246	* Supply the setjmp return RIP/EIP if requested.
2247	*/
2248	if ( pVCpu->vmm.s.AssertJmpBuf.UnwindRetPcLocation + sizeof(RTR0UINTPTR) > R0Addr
2249	&& pVCpu->vmm.s.AssertJmpBuf.UnwindRetPcLocation < R0Addr + cbRead)
2250	{
2251	uint8_t const pbSrc = (uint8_t const )&pVCpu->vmm.s.AssertJmpBuf.UnwindRetPcValue;
2252	size_t cbSrc = sizeof(pVCpu->vmm.s.AssertJmpBuf.UnwindRetPcValue);
2253	size_t offDst = 0;
2254	if (R0Addr < pVCpu->vmm.s.AssertJmpBuf.UnwindRetPcLocation)
2255	offDst = pVCpu->vmm.s.AssertJmpBuf.UnwindRetPcLocation - R0Addr;
2256	else if (R0Addr > pVCpu->vmm.s.AssertJmpBuf.UnwindRetPcLocation)
2257	{
2258	size_t offSrc = R0Addr - pVCpu->vmm.s.AssertJmpBuf.UnwindRetPcLocation;
2259	Assert(offSrc < cbSrc);
2260	pbSrc -= offSrc;
2261	cbSrc -= offSrc;
2262	}
2263	if (cbSrc > cbRead - offDst)
2264	cbSrc = cbRead - offDst;
2265	memcpy((uint8_t *)pvBuf + offDst, pbSrc, cbSrc);
2266
2267	//if (cbSrc == cbRead)
2268	// rc = VINF_SUCCESS;
2269	}
2270
2271	return VINF_SUCCESS;
2272	}
2273
2274
2275	/**
2276	* Used by the DBGF stack unwinder to initialize the register state.
2277	*
2278	* @param pUVM The user mode VM handle.
2279	* @param idCpu The ID of the CPU being unwound.
2280	* @param pState The unwind state to initialize.
2281	*/
2282	VMMR3_INT_DECL(void) VMMR3InitR0StackUnwindState(PUVM pUVM, VMCPUID idCpu, struct RTDBGUNWINDSTATE *pState)
2283	{
2284	PVMCPU pVCpu = VMMR3GetCpuByIdU(pUVM, idCpu);
2285	AssertReturnVoid(pVCpu);
2286
2287	/*
2288	* This is all we really need here if we had proper unwind info (win64 only)...
2289	*/
2290	pState->u.x86.auRegs[X86_GREG_xBP] = pVCpu->vmm.s.AssertJmpBuf.UnwindBp;
2291	pState->u.x86.auRegs[X86_GREG_xSP] = pVCpu->vmm.s.AssertJmpBuf.UnwindSp;
2292	pState->uPc = pVCpu->vmm.s.AssertJmpBuf.UnwindPc;
2293
2294	/*
2295	* Locate the resume point on the stack.
2296	*/
2297	uintptr_t off = 0;
2298
2299	#ifdef RT_ARCH_AMD64
2300	/*
2301	* This code must match the vmmR0CallRing3LongJmp stack frame setup in VMMR0JmpA-amd64.asm exactly.
2302	*/
2303	# ifdef RT_OS_WINDOWS
2304	off += 0xa0; /* XMM6 thru XMM15 */
2305	# endif
2306	pState->u.x86.uRFlags = (uint64_t const )&pVCpu->vmm.s.abAssertStack[off];
2307	off += 8;
2308	pState->u.x86.auRegs[X86_GREG_xBX] = (uint64_t const )&pVCpu->vmm.s.abAssertStack[off];
2309	off += 8;
2310	# ifdef RT_OS_WINDOWS
2311	pState->u.x86.auRegs[X86_GREG_xSI] = (uint64_t const )&pVCpu->vmm.s.abAssertStack[off];
2312	off += 8;
2313	pState->u.x86.auRegs[X86_GREG_xDI] = (uint64_t const )&pVCpu->vmm.s.abAssertStack[off];
2314	off += 8;
2315	# endif
2316	pState->u.x86.auRegs[X86_GREG_x12] = (uint64_t const )&pVCpu->vmm.s.abAssertStack[off];
2317	off += 8;
2318	pState->u.x86.auRegs[X86_GREG_x13] = (uint64_t const )&pVCpu->vmm.s.abAssertStack[off];
2319	off += 8;
2320	pState->u.x86.auRegs[X86_GREG_x14] = (uint64_t const )&pVCpu->vmm.s.abAssertStack[off];
2321	off += 8;
2322	pState->u.x86.auRegs[X86_GREG_x15] = (uint64_t const )&pVCpu->vmm.s.abAssertStack[off];
2323	off += 8;
2324	pState->u.x86.auRegs[X86_GREG_xBP] = (uint64_t const )&pVCpu->vmm.s.abAssertStack[off];
2325	off += 8;
2326	pState->uPc = (uint64_t const )&pVCpu->vmm.s.abAssertStack[off];
2327	pState->u.x86.auRegs[X86_GREG_xSP] = pVCpu->vmm.s.AssertJmpBuf.UnwindRetSp;
2328
2329	#elif defined(RT_ARCH_X86)
2330	/*
2331	* This code must match the vmmR0CallRing3LongJmp stack frame setup in VMMR0JmpA-x86.asm exactly.
2332	*/
2333	pState->u.x86.uRFlags = (uint32_t const )&pVCpu->vmm.s.abAssertStack[off];
2334	off += 4;
2335	pState->u.x86.auRegs[X86_GREG_xBX] = (uint32_t const )&pVCpu->vmm.s.abAssertStack[off];
2336	off += 4;
2337	pState->u.x86.auRegs[X86_GREG_xSI] = (uint32_t const )&pVCpu->vmm.s.abAssertStack[off];
2338	off += 4;
2339	pState->u.x86.auRegs[X86_GREG_xDI] = (uint32_t const )&pVCpu->vmm.s.abAssertStack[off];
2340	off += 4;
2341	pState->u.x86.auRegs[X86_GREG_xBP] = (uint32_t const )&pVCpu->vmm.s.abAssertStack[off];
2342	off += 4;
2343	pState->uPc = (uint32_t const )&pVCpu->vmm.s.abAssertStack[off];
2344	pState->u.x86.auRegs[X86_GREG_xSP] = pVCpu->vmm.s.AssertJmpBuf.UnwindRetSp;
2345
2346	#elif defined(RT_ARCH_ARM64)
2347	/** @todo PORTME: arm ring-0 */
2348
2349	#else
2350	# error "Port me"
2351	#endif
2352	}
2353
2354
2355	/**
2356	* Wrapper for SUPR3CallVMMR0Ex which will deal with VINF_VMM_CALL_HOST returns.
2357	*
2358	* @returns VBox status code.
2359	* @param pVM The cross context VM structure.
2360	* @param uOperation Operation to execute.
2361	* @param u64Arg Constant argument.
2362	* @param pReqHdr Pointer to a request header. See SUPR3CallVMMR0Ex for
2363	* details.
2364	*/
2365	VMMR3DECL(int) VMMR3CallR0(PVM pVM, uint32_t uOperation, uint64_t u64Arg, PSUPVMMR0REQHDR pReqHdr)
2366	{
2367	PVMCPU pVCpu = VMMGetCpu(pVM);
2368	AssertReturn(pVCpu, VERR_VM_THREAD_NOT_EMT);
2369	return VMMR3CallR0Emt(pVM, pVCpu, (VMMR0OPERATION)uOperation, u64Arg, pReqHdr);
2370	}
2371
2372
2373	/**
2374	* Wrapper for SUPR3CallVMMR0Ex which will deal with VINF_VMM_CALL_HOST returns.
2375	*
2376	* @returns VBox status code.
2377	* @param pVM The cross context VM structure.
2378	* @param pVCpu The cross context VM structure.
2379	* @param enmOperation Operation to execute.
2380	* @param u64Arg Constant argument.
2381	* @param pReqHdr Pointer to a request header. See SUPR3CallVMMR0Ex for
2382	* details.
2383	*/
2384	VMMR3_INT_DECL(int) VMMR3CallR0Emt(PVM pVM, PVMCPU pVCpu, VMMR0OPERATION enmOperation, uint64_t u64Arg, PSUPVMMR0REQHDR pReqHdr)
2385	{
2386	/*
2387	* Call ring-0.
2388	*/
2389	#ifdef NO_SUPCALLR0VMM
2390	int rc = VERR_GENERAL_FAILURE;
2391	#else
2392	int rc = SUPR3CallVMMR0Ex(VMCC_GET_VMR0_FOR_CALL(pVM), pVCpu->idCpu, enmOperation, u64Arg, pReqHdr);
2393	#endif
2394
2395	/*
2396	* Flush the logs and deal with ring-0 assertions.
2397	*/
2398	#ifdef LOG_ENABLED
2399	VMM_FLUSH_R0_LOG(pVM, pVCpu, &pVCpu->vmm.s.u.s.Logger, NULL);
2400	#endif
2401	VMM_FLUSH_R0_LOG(pVM, pVCpu, &pVCpu->vmm.s.u.s.RelLogger, RTLogRelGetDefaultInstance());
2402	if (rc != VERR_VMM_RING0_ASSERTION)
2403	{
2404	AssertLogRelMsgReturn(rc == VINF_SUCCESS \|\| RT_FAILURE(rc),
2405	("enmOperation=%u rc=%Rrc\n", enmOperation, rc),
2406	VERR_IPE_UNEXPECTED_INFO_STATUS);
2407	return rc;
2408	}
2409	return vmmR3HandleRing0Assert(pVM, pVCpu);
2410	}
2411
2412
2413	/**
2414	* Logs a ring-0 assertion ASAP after returning to ring-3.
2415	*
2416	* @returns VBox status code.
2417	* @param pVM The cross context VM structure.
2418	* @param pVCpu The cross context virtual CPU structure.
2419	*/
2420	static int vmmR3HandleRing0Assert(PVM pVM, PVMCPU pVCpu)
2421	{
2422	RT_NOREF(pVCpu);
2423	LogRel(("%s", pVM->vmm.s.szRing0AssertMsg1));
2424	LogRel(("%s", pVM->vmm.s.szRing0AssertMsg2));
2425	return VERR_VMM_RING0_ASSERTION;
2426	}
2427
2428
2429	/**
2430	* Displays the Force action Flags.
2431	*
2432	* @param pVM The cross context VM structure.
2433	* @param pHlp The output helpers.
2434	* @param pszArgs The additional arguments (ignored).
2435	*/
2436	static DECLCALLBACK(void) vmmR3InfoFF(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
2437	{
2438	int c;
2439	uint32_t f;
2440	NOREF(pszArgs);
2441
2442	#define PRINT_FLAG(prf,flag) do { \
2443	if (f & (prf##flag)) \
2444	{ \
2445	static const char *s_psz = #flag; \
2446	if (!(c % 6)) \
2447	pHlp->pfnPrintf(pHlp, "%s\n %s", c ? "," : "", s_psz); \
2448	else \
2449	pHlp->pfnPrintf(pHlp, ", %s", s_psz); \
2450	c++; \
2451	f &= ~(prf##flag); \
2452	} \
2453	} while (0)
2454
2455	#define PRINT_GROUP(prf,grp,sfx) do { \
2456	if (f & (prf##grp##sfx)) \
2457	{ \
2458	static const char *s_psz = #grp; \
2459	if (!(c % 5)) \
2460	pHlp->pfnPrintf(pHlp, "%s %s", c ? ",\n" : " Groups:\n", s_psz); \
2461	else \
2462	pHlp->pfnPrintf(pHlp, ", %s", s_psz); \
2463	c++; \
2464	} \
2465	} while (0)
2466
2467	/*
2468	* The global flags.
2469	*/
2470	const uint32_t fGlobalForcedActions = pVM->fGlobalForcedActions;
2471	pHlp->pfnPrintf(pHlp, "Global FFs: %#RX32", fGlobalForcedActions);
2472
2473	/* show the flag mnemonics */
2474	c = 0;
2475	f = fGlobalForcedActions;
2476	PRINT_FLAG(VM_FF_,TM_VIRTUAL_SYNC);
2477	PRINT_FLAG(VM_FF_,PDM_QUEUES);
2478	PRINT_FLAG(VM_FF_,PDM_DMA);
2479	PRINT_FLAG(VM_FF_,DBGF);
2480	PRINT_FLAG(VM_FF_,REQUEST);
2481	PRINT_FLAG(VM_FF_,CHECK_VM_STATE);
2482	PRINT_FLAG(VM_FF_,RESET);
2483	PRINT_FLAG(VM_FF_,EMT_RENDEZVOUS);
2484	PRINT_FLAG(VM_FF_,PGM_NEED_HANDY_PAGES);
2485	PRINT_FLAG(VM_FF_,PGM_NO_MEMORY);
2486	PRINT_FLAG(VM_FF_,PGM_POOL_FLUSH_PENDING);
2487	PRINT_FLAG(VM_FF_,DEBUG_SUSPEND);
2488	if (f)
2489	pHlp->pfnPrintf(pHlp, "%s\n Unknown bits: %#RX32\n", c ? "," : "", f);
2490	else
2491	pHlp->pfnPrintf(pHlp, "\n");
2492
2493	/* the groups */
2494	c = 0;
2495	f = fGlobalForcedActions;
2496	PRINT_GROUP(VM_FF_,EXTERNAL_SUSPENDED,_MASK);
2497	PRINT_GROUP(VM_FF_,EXTERNAL_HALTED,_MASK);
2498	PRINT_GROUP(VM_FF_,HIGH_PRIORITY_PRE,_MASK);
2499	PRINT_GROUP(VM_FF_,HIGH_PRIORITY_PRE_RAW,_MASK);
2500	PRINT_GROUP(VM_FF_,HIGH_PRIORITY_POST,_MASK);
2501	PRINT_GROUP(VM_FF_,NORMAL_PRIORITY_POST,_MASK);
2502	PRINT_GROUP(VM_FF_,NORMAL_PRIORITY,_MASK);
2503	PRINT_GROUP(VM_FF_,ALL_REM,_MASK);
2504	if (c)
2505	pHlp->pfnPrintf(pHlp, "\n");
2506
2507	/*
2508	* Per CPU flags.
2509	*/
2510	for (VMCPUID i = 0; i < pVM->cCpus; i++)
2511	{
2512	PVMCPU pVCpu = pVM->apCpusR3[i];
2513	const uint64_t fLocalForcedActions = pVCpu->fLocalForcedActions;
2514	pHlp->pfnPrintf(pHlp, "CPU %u FFs: %#RX64", i, fLocalForcedActions);
2515
2516	/* show the flag mnemonics */
2517	c = 0;
2518	f = fLocalForcedActions;
2519	PRINT_FLAG(VMCPU_FF_,INTERRUPT_APIC);
2520	PRINT_FLAG(VMCPU_FF_,INTERRUPT_PIC);
2521	PRINT_FLAG(VMCPU_FF_,TIMER);
2522	PRINT_FLAG(VMCPU_FF_,INTERRUPT_NMI);
2523	PRINT_FLAG(VMCPU_FF_,INTERRUPT_SMI);
2524	PRINT_FLAG(VMCPU_FF_,PDM_CRITSECT);
2525	PRINT_FLAG(VMCPU_FF_,UNHALT);
2526	PRINT_FLAG(VMCPU_FF_,IEM);
2527	PRINT_FLAG(VMCPU_FF_,UPDATE_APIC);
2528	PRINT_FLAG(VMCPU_FF_,DBGF);
2529	PRINT_FLAG(VMCPU_FF_,REQUEST);
2530	PRINT_FLAG(VMCPU_FF_,HM_UPDATE_CR3);
2531	PRINT_FLAG(VMCPU_FF_,PGM_SYNC_CR3);
2532	PRINT_FLAG(VMCPU_FF_,PGM_SYNC_CR3_NON_GLOBAL);
2533	PRINT_FLAG(VMCPU_FF_,TLB_FLUSH);
2534	PRINT_FLAG(VMCPU_FF_,INHIBIT_INTERRUPTS);
2535	PRINT_FLAG(VMCPU_FF_,BLOCK_NMIS);
2536	PRINT_FLAG(VMCPU_FF_,TO_R3);
2537	PRINT_FLAG(VMCPU_FF_,IOM);
2538	if (f)
2539	pHlp->pfnPrintf(pHlp, "%s\n Unknown bits: %#RX64\n", c ? "," : "", f);
2540	else
2541	pHlp->pfnPrintf(pHlp, "\n");
2542
2543	if (fLocalForcedActions & VMCPU_FF_INHIBIT_INTERRUPTS)
2544	pHlp->pfnPrintf(pHlp, " intr inhibit RIP: %RGp\n", EMGetInhibitInterruptsPC(pVCpu));
2545
2546	/* the groups */
2547	c = 0;
2548	f = fLocalForcedActions;
2549	PRINT_GROUP(VMCPU_FF_,EXTERNAL_SUSPENDED,_MASK);
2550	PRINT_GROUP(VMCPU_FF_,EXTERNAL_HALTED,_MASK);
2551	PRINT_GROUP(VMCPU_FF_,HIGH_PRIORITY_PRE,_MASK);
2552	PRINT_GROUP(VMCPU_FF_,HIGH_PRIORITY_PRE_RAW,_MASK);
2553	PRINT_GROUP(VMCPU_FF_,HIGH_PRIORITY_POST,_MASK);
2554	PRINT_GROUP(VMCPU_FF_,NORMAL_PRIORITY_POST,_MASK);
2555	PRINT_GROUP(VMCPU_FF_,NORMAL_PRIORITY,_MASK);
2556	PRINT_GROUP(VMCPU_FF_,RESUME_GUEST,_MASK);
2557	PRINT_GROUP(VMCPU_FF_,HM_TO_R3,_MASK);
2558	PRINT_GROUP(VMCPU_FF_,ALL_REM,_MASK);
2559	if (c)
2560	pHlp->pfnPrintf(pHlp, "\n");
2561	}
2562
2563	#undef PRINT_FLAG
2564	#undef PRINT_GROUP
2565	}
2566

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source: vbox/trunk/src/VBox/VMM/VMMR3/VMM.cpp@ 94018

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