VMMTests.cpp@ 70161

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1	/* $Id: VMMTests.cpp 69111 2017-10-17 14:26:02Z vboxsync $ */
2	/** @file
3	* VMM - The Virtual Machine Monitor Core, Tests.
4	*/
5
6	/*
7	* Copyright (C) 2006-2017 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
21	/*********************************************************************************************************************************
22	* Header Files *
23	*********************************************************************************************************************************/
24	#define LOG_GROUP LOG_GROUP_VMM
25	#include <iprt/asm-amd64-x86.h> /* for SUPGetCpuHzFromGIP */
26	#include <VBox/vmm/vmm.h>
27	#include <VBox/vmm/pdmapi.h>
28	#include <VBox/vmm/cpum.h>
29	#include <VBox/dbg.h>
30	#include <VBox/vmm/hm.h>
31	#include <VBox/vmm/mm.h>
32	#include <VBox/vmm/trpm.h>
33	#include <VBox/vmm/selm.h>
34	#include "VMMInternal.h"
35	#include <VBox/vmm/vm.h>
36	#include <VBox/err.h>
37	#include <VBox/param.h>
38
39	#include <iprt/assert.h>
40	#include <iprt/asm.h>
41	#include <iprt/time.h>
42	#include <iprt/stream.h>
43	#include <iprt/string.h>
44	#include <iprt/x86.h>
45
46
47	#ifdef VBOX_WITH_RAW_MODE
48
49	static void vmmR3TestClearStack(PVMCPU pVCpu)
50	{
51	/* We leave the first 64 bytes of the stack alone because of strict
52	ring-0 long jump code uses it. */
53	memset(pVCpu->vmm.s.pbEMTStackR3 + 64, 0xaa, VMM_STACK_SIZE - 64);
54	}
55
56
57	static int vmmR3ReportMsrRange(PVM pVM, uint32_t uMsr, uint64_t cMsrs, PRTSTREAM pReportStrm, uint32_t *pcMsrsFound)
58	{
59	/*
60	* Preps.
61	*/
62	RTRCPTR RCPtrEP;
63	int rc = PDMR3LdrGetSymbolRC(pVM, VMMRC_MAIN_MODULE_NAME, "VMMRCTestReadMsrs", &RCPtrEP);
64	AssertMsgRCReturn(rc, ("Failed to resolved VMMRC.rc::VMMRCEntry(), rc=%Rrc\n", rc), rc);
65
66	uint32_t const cMsrsPerCall = 16384;
67	uint32_t cbResults = cMsrsPerCall * sizeof(VMMTESTMSRENTRY);
68	PVMMTESTMSRENTRY paResults;
69	rc = MMHyperAlloc(pVM, cbResults, 0, MM_TAG_VMM, (void **)&paResults);
70	AssertMsgRCReturn(rc, ("Error allocating %#x bytes off the hyper heap: %Rrc\n", cbResults, rc), rc);
71	/*
72	* The loop.
73	*/
74	RTRCPTR RCPtrResults = MMHyperR3ToRC(pVM, paResults);
75	uint32_t cMsrsFound = 0;
76	uint32_t uLastMsr = uMsr;
77	uint64_t uNsTsStart = RTTimeNanoTS();
78
79	for (;;)
80	{
81	if ( pReportStrm
82	&& uMsr - uLastMsr > _64K
83	&& (uMsr & (_4M - 1)) == 0)
84	{
85	if (uMsr - uLastMsr < 16U*_1M)
86	RTStrmFlush(pReportStrm);
87	RTPrintf("... %#010x [%u ns/msr] ...\n", uMsr, (RTTimeNanoTS() - uNsTsStart) / uMsr);
88	}
89
90	/RT_BZERO(paResults, cbResults);/
91	uint32_t const cBatch = RT_MIN(cMsrsPerCall, cMsrs);
92	rc = VMMR3CallRC(pVM, RCPtrEP, 4, pVM->pVMRC, uMsr, cBatch, RCPtrResults);
93	if (RT_FAILURE(rc))
94	{
95	RTPrintf("VMM: VMMR3CallRC failed rc=%Rrc, uMsr=%#x\n", rc, uMsr);
96	break;
97	}
98
99	for (uint32_t i = 0; i < cBatch; i++)
100	if (paResults[i].uMsr != UINT64_MAX)
101	{
102	if (paResults[i].uValue == 0)
103	{
104	if (pReportStrm)
105	RTStrmPrintf(pReportStrm,
106	" MVO(%#010llx, \"MSR\", UINT64_C(%#018llx)),\n", paResults[i].uMsr, paResults[i].uValue);
107	RTPrintf("%#010llx = 0\n", paResults[i].uMsr);
108	}
109	else
110	{
111	if (pReportStrm)
112	RTStrmPrintf(pReportStrm,
113	" MVO(%#010llx, \"MSR\", UINT64_C(%#018llx)),\n", paResults[i].uMsr, paResults[i].uValue);
114	RTPrintf("%#010llx = %#010x`%08x\n", paResults[i].uMsr,
115	RT_HI_U32(paResults[i].uValue), RT_LO_U32(paResults[i].uValue));
116	}
117	cMsrsFound++;
118	uLastMsr = paResults[i].uMsr;
119	}
120
121	/* Advance. */
122	if (cMsrs <= cMsrsPerCall)
123	break;
124	cMsrs -= cMsrsPerCall;
125	uMsr += cMsrsPerCall;
126	}
127
128	*pcMsrsFound += cMsrsFound;
129	MMHyperFree(pVM, paResults);
130	return rc;
131	}
132
133
134	/**
135	* Produces a quick report of MSRs.
136	*
137	* @returns VBox status code.
138	* @param pVM The cross context VM structure.
139	* @param pReportStrm Pointer to the report output stream. Optional.
140	* @param fWithCpuId Whether CPUID should be included.
141	*/
142	static int vmmR3DoMsrQuickReport(PVM pVM, PRTSTREAM pReportStrm, bool fWithCpuId)
143	{
144	uint64_t uTsStart = RTTimeNanoTS();
145	RTPrintf("=== MSR Quick Report Start ===\n");
146	RTStrmFlush(g_pStdOut);
147	if (fWithCpuId)
148	{
149	DBGFR3InfoStdErr(pVM->pUVM, "cpuid", "verbose");
150	RTPrintf("\n");
151	}
152	if (pReportStrm)
153	RTStrmPrintf(pReportStrm, "\n\n{\n");
154
155	static struct { uint32_t uFirst, cMsrs; } const s_aRanges[] =
156	{
157	{ 0x00000000, 0x00042000 },
158	{ 0x10000000, 0x00001000 },
159	{ 0x20000000, 0x00001000 },
160	{ 0x40000000, 0x00012000 },
161	{ 0x80000000, 0x00012000 },
162	// Need 0xc0000000..0xc001106f (at least), but trouble on solaris w/ 10h and 0fh family cpus:
163	// { 0xc0000000, 0x00022000 },
164	{ 0xc0000000, 0x00010000 },
165	{ 0xc0010000, 0x00001040 },
166	{ 0xc0011040, 0x00004040 }, /* should cause trouble... */
167	};
168	uint32_t cMsrsFound = 0;
169	int rc = VINF_SUCCESS;
170	for (unsigned i = 0; i < RT_ELEMENTS(s_aRanges) && RT_SUCCESS(rc); i++)
171	{
172	//if (i >= 3)
173	//{
174	//RTStrmFlush(g_pStdOut);
175	//RTThreadSleep(40);
176	//}
177	rc = vmmR3ReportMsrRange(pVM, s_aRanges[i].uFirst, s_aRanges[i].cMsrs, pReportStrm, &cMsrsFound);
178	}
179
180	if (pReportStrm)
181	RTStrmPrintf(pReportStrm, "}; /* %u (%#x) MSRs; rc=%Rrc */\n", cMsrsFound, cMsrsFound, rc);
182	RTPrintf("Total %u (%#x) MSRs\n", cMsrsFound, cMsrsFound);
183	RTPrintf("=== MSR Quick Report End (rc=%Rrc, %'llu ns) ===\n", rc, RTTimeNanoTS() - uTsStart);
184	return rc;
185	}
186
187
188	/**
189	* Performs a testcase.
190	*
191	* @returns return value from the test.
192	* @param pVM The cross context VM structure.
193	* @param enmTestcase The testcase operation to perform.
194	* @param uVariation The testcase variation id.
195	*/
196	static int vmmR3DoGCTest(PVM pVM, VMMRCOPERATION enmTestcase, unsigned uVariation)
197	{
198	PVMCPU pVCpu = &pVM->aCpus[0];
199
200	RTRCPTR RCPtrEP;
201	int rc = PDMR3LdrGetSymbolRC(pVM, VMMRC_MAIN_MODULE_NAME, "VMMRCEntry", &RCPtrEP);
202	if (RT_FAILURE(rc))
203	return rc;
204
205	Log(("vmmR3DoGCTest: %d %#x\n", enmTestcase, uVariation));
206	CPUMSetHyperState(pVCpu, pVM->vmm.s.pfnCallTrampolineRC, pVCpu->vmm.s.pbEMTStackBottomRC, 0, 0);
207	vmmR3TestClearStack(pVCpu);
208	CPUMPushHyper(pVCpu, uVariation);
209	CPUMPushHyper(pVCpu, enmTestcase);
210	CPUMPushHyper(pVCpu, pVM->pVMRC);
211	CPUMPushHyper(pVCpu, 3 * sizeof(RTRCPTR)); /* stack frame size */
212	CPUMPushHyper(pVCpu, RCPtrEP); /* what to call */
213	Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
214	rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
215
216	# if 1
217	/* flush the raw-mode logs. */
218	# ifdef LOG_ENABLED
219	PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
220	if ( pLogger
221	&& pLogger->offScratch > 0)
222	RTLogFlushRC(NULL, pLogger);
223	# endif
224	# ifdef VBOX_WITH_RC_RELEASE_LOGGING
225	PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
226	if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
227	RTLogFlushRC(RTLogRelGetDefaultInstance(), pRelLogger);
228	# endif
229	# endif
230
231	Log(("vmmR3DoGCTest: rc=%Rrc iLastGZRc=%Rrc\n", rc, pVCpu->vmm.s.iLastGZRc));
232	if (RT_LIKELY(rc == VINF_SUCCESS))
233	rc = pVCpu->vmm.s.iLastGZRc;
234	return rc;
235	}
236
237
238	/**
239	* Performs a trap test.
240	*
241	* @returns Return value from the trap test.
242	* @param pVM The cross context VM structure.
243	* @param u8Trap The trap number to test.
244	* @param uVariation The testcase variation.
245	* @param rcExpect The expected result.
246	* @param u32Eax The expected eax value.
247	* @param pszFaultEIP The fault address. Pass NULL if this isn't available or doesn't apply.
248	* @param pszDesc The test description.
249	*/
250	static int vmmR3DoTrapTest(PVM pVM, uint8_t u8Trap, unsigned uVariation, int rcExpect, uint32_t u32Eax, const char pszFaultEIP, const char pszDesc)
251	{
252	PVMCPU pVCpu = &pVM->aCpus[0];
253
254	RTPrintf("VMM: testing 0%x / %d - %s\n", u8Trap, uVariation, pszDesc);
255
256	RTRCPTR RCPtrEP;
257	int rc = PDMR3LdrGetSymbolRC(pVM, VMMRC_MAIN_MODULE_NAME, "VMMRCEntry", &RCPtrEP);
258	if (RT_FAILURE(rc))
259	return rc;
260
261	CPUMSetHyperState(pVCpu, pVM->vmm.s.pfnCallTrampolineRC, pVCpu->vmm.s.pbEMTStackBottomRC, 0, 0);
262	vmmR3TestClearStack(pVCpu);
263	CPUMPushHyper(pVCpu, uVariation);
264	CPUMPushHyper(pVCpu, u8Trap + VMMRC_DO_TESTCASE_TRAP_FIRST);
265	CPUMPushHyper(pVCpu, pVM->pVMRC);
266	CPUMPushHyper(pVCpu, 3 * sizeof(RTRCPTR)); /* stack frame size */
267	CPUMPushHyper(pVCpu, RCPtrEP); /* what to call */
268	Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
269	rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
270	if (RT_LIKELY(rc == VINF_SUCCESS))
271	rc = pVCpu->vmm.s.iLastGZRc;
272	bool fDump = false;
273	if (rc != rcExpect)
274	{
275	RTPrintf("VMM: FAILURE - rc=%Rrc expected %Rrc\n", rc, rcExpect);
276	if (rc != VERR_NOT_IMPLEMENTED)
277	fDump = true;
278	}
279	else if ( rcExpect != VINF_SUCCESS
280	&& u8Trap != 8 /* double fault doesn't dare set TrapNo. */
281	&& u8Trap != 3 /* guest only, we're not in guest. */
282	&& u8Trap != 1 /* guest only, we're not in guest. */
283	&& u8Trap != TRPMGetTrapNo(pVCpu))
284	{
285	RTPrintf("VMM: FAILURE - Trap %#x expected %#x\n", TRPMGetTrapNo(pVCpu), u8Trap);
286	fDump = true;
287	}
288	else if (pszFaultEIP)
289	{
290	RTRCPTR RCPtrFault;
291	int rc2 = PDMR3LdrGetSymbolRC(pVM, VMMRC_MAIN_MODULE_NAME, pszFaultEIP, &RCPtrFault);
292	if (RT_FAILURE(rc2))
293	RTPrintf("VMM: FAILURE - Failed to resolve symbol '%s', %Rrc!\n", pszFaultEIP, rc);
294	else if (RCPtrFault != CPUMGetHyperEIP(pVCpu))
295	{
296	RTPrintf("VMM: FAILURE - EIP=%08RX32 expected %RRv (%s)\n", CPUMGetHyperEIP(pVCpu), RCPtrFault, pszFaultEIP);
297	fDump = true;
298	}
299	}
300	else if (rcExpect != VINF_SUCCESS)
301	{
302	if (CPUMGetHyperSS(pVCpu) == SELMGetHyperDS(pVM))
303	RTPrintf("VMM: FAILURE - ss=%x expected %x\n", CPUMGetHyperSS(pVCpu), SELMGetHyperDS(pVM));
304	if (CPUMGetHyperES(pVCpu) == SELMGetHyperDS(pVM))
305	RTPrintf("VMM: FAILURE - es=%x expected %x\n", CPUMGetHyperES(pVCpu), SELMGetHyperDS(pVM));
306	if (CPUMGetHyperDS(pVCpu) == SELMGetHyperDS(pVM))
307	RTPrintf("VMM: FAILURE - ds=%x expected %x\n", CPUMGetHyperDS(pVCpu), SELMGetHyperDS(pVM));
308	if (CPUMGetHyperFS(pVCpu) == SELMGetHyperDS(pVM))
309	RTPrintf("VMM: FAILURE - fs=%x expected %x\n", CPUMGetHyperFS(pVCpu), SELMGetHyperDS(pVM));
310	if (CPUMGetHyperGS(pVCpu) == SELMGetHyperDS(pVM))
311	RTPrintf("VMM: FAILURE - gs=%x expected %x\n", CPUMGetHyperGS(pVCpu), SELMGetHyperDS(pVM));
312	if (CPUMGetHyperEDI(pVCpu) == 0x01234567)
313	RTPrintf("VMM: FAILURE - edi=%x expected %x\n", CPUMGetHyperEDI(pVCpu), 0x01234567);
314	if (CPUMGetHyperESI(pVCpu) == 0x42000042)
315	RTPrintf("VMM: FAILURE - esi=%x expected %x\n", CPUMGetHyperESI(pVCpu), 0x42000042);
316	if (CPUMGetHyperEBP(pVCpu) == 0xffeeddcc)
317	RTPrintf("VMM: FAILURE - ebp=%x expected %x\n", CPUMGetHyperEBP(pVCpu), 0xffeeddcc);
318	if (CPUMGetHyperEBX(pVCpu) == 0x89abcdef)
319	RTPrintf("VMM: FAILURE - ebx=%x expected %x\n", CPUMGetHyperEBX(pVCpu), 0x89abcdef);
320	if (CPUMGetHyperECX(pVCpu) == 0xffffaaaa)
321	RTPrintf("VMM: FAILURE - ecx=%x expected %x\n", CPUMGetHyperECX(pVCpu), 0xffffaaaa);
322	if (CPUMGetHyperEDX(pVCpu) == 0x77778888)
323	RTPrintf("VMM: FAILURE - edx=%x expected %x\n", CPUMGetHyperEDX(pVCpu), 0x77778888);
324	if (CPUMGetHyperEAX(pVCpu) == u32Eax)
325	RTPrintf("VMM: FAILURE - eax=%x expected %x\n", CPUMGetHyperEAX(pVCpu), u32Eax);
326	}
327	if (fDump)
328	VMMR3FatalDump(pVM, pVCpu, rc);
329	return rc;
330	}
331
332	#endif /* VBOX_WITH_RAW_MODE */
333
334
335	/* execute the switch. */
336	VMMR3DECL(int) VMMDoTest(PVM pVM)
337	{
338	int rc = VINF_SUCCESS;
339
340	#ifdef VBOX_WITH_RAW_MODE
341	PVMCPU pVCpu = &pVM->aCpus[0];
342	PUVM pUVM = pVM->pUVM;
343
344	# ifdef NO_SUPCALLR0VMM
345	RTPrintf("NO_SUPCALLR0VMM\n");
346	return rc;
347	# endif
348
349	/*
350	* Setup stack for calling VMMRCEntry().
351	*/
352	RTRCPTR RCPtrEP;
353	rc = PDMR3LdrGetSymbolRC(pVM, VMMRC_MAIN_MODULE_NAME, "VMMRCEntry", &RCPtrEP);
354	if (RT_SUCCESS(rc))
355	{
356	RTPrintf("VMM: VMMRCEntry=%RRv\n", RCPtrEP);
357
358	/*
359	* Test various crashes which we must be able to recover from.
360	*/
361	vmmR3DoTrapTest(pVM, 0x3, 0, VINF_EM_DBG_HYPER_ASSERTION, 0xf0f0f0f0, "vmmGCTestTrap3_FaultEIP", "int3");
362	vmmR3DoTrapTest(pVM, 0x3, 1, VINF_EM_DBG_HYPER_ASSERTION, 0xf0f0f0f0, "vmmGCTestTrap3_FaultEIP", "int3 WP");
363
364	# if 0//defined(DEBUG_bird) /* guess most people would like to skip these since they write to com1. */
365	vmmR3DoTrapTest(pVM, 0x8, 0, VERR_TRPM_PANIC, 0x00000000, "vmmGCTestTrap8_FaultEIP", "#DF [#PG]");
366	SELMR3Relocate(pVM); /* this resets the busy flag of the Trap 08 TSS */
367	bool f;
368	rc = CFGMR3QueryBool(CFGMR3GetRoot(pVM), "DoubleFault", &f);
369	# if !defined(DEBUG_bird)
370	if (RT_SUCCESS(rc) && f)
371	# endif
372	{
373	/* see triple fault warnings in SELM and VMMRC.cpp. */
374	vmmR3DoTrapTest(pVM, 0x8, 1, VERR_TRPM_PANIC, 0x00000000, "vmmGCTestTrap8_FaultEIP", "#DF [#PG] WP");
375	SELMR3Relocate(pVM); /* this resets the busy flag of the Trap 08 TSS */
376	}
377	# endif
378
379	vmmR3DoTrapTest(pVM, 0xd, 0, VERR_TRPM_DONT_PANIC, 0xf0f0f0f0, "vmmGCTestTrap0d_FaultEIP", "ltr #GP");
380	/// @todo find a better \#GP case, on intel ltr will \#PF (busy update?) and not \#GP.
381	//vmmR3DoTrapTest(pVM, 0xd, 1, VERR_TRPM_DONT_PANIC, 0xf0f0f0f0, "vmmGCTestTrap0d_FaultEIP", "ltr #GP WP");
382
383	vmmR3DoTrapTest(pVM, 0xe, 0, VERR_TRPM_DONT_PANIC, 0x00000000, "vmmGCTestTrap0e_FaultEIP", "#PF (NULL)");
384	vmmR3DoTrapTest(pVM, 0xe, 1, VERR_TRPM_DONT_PANIC, 0x00000000, "vmmGCTestTrap0e_FaultEIP", "#PF (NULL) WP");
385	vmmR3DoTrapTest(pVM, 0xe, 2, VINF_SUCCESS, 0x00000000, NULL, "#PF w/Tmp Handler");
386	/* This test is no longer relevant as fs and gs are loaded with NULL
387	selectors and we will always return to HC if a #GP occurs while
388	returning to guest code.
389	vmmR3DoTrapTest(pVM, 0xe, 4, VINF_SUCCESS, 0x00000000, NULL, "#PF w/Tmp Handler and bad fs");
390	*/
391
392	/*
393	* Set a debug register and perform a context switch.
394	*/
395	rc = vmmR3DoGCTest(pVM, VMMRC_DO_TESTCASE_NOP, 0);
396	if (rc != VINF_SUCCESS)
397	{
398	RTPrintf("VMM: Nop test failed, rc=%Rrc not VINF_SUCCESS\n", rc);
399	return RT_FAILURE(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS;
400	}
401
402	/* a harmless breakpoint */
403	RTPrintf("VMM: testing hardware bp at 0x10000 (not hit)\n");
404	DBGFADDRESS Addr;
405	DBGFR3AddrFromFlat(pUVM, &Addr, 0x10000);
406	RTUINT iBp0;
407	rc = DBGFR3BpSetReg(pUVM, &Addr, 0, ~(uint64_t)0, X86_DR7_RW_EO, 1, &iBp0);
408	AssertReleaseRC(rc);
409	rc = vmmR3DoGCTest(pVM, VMMRC_DO_TESTCASE_NOP, 0);
410	if (rc != VINF_SUCCESS)
411	{
412	RTPrintf("VMM: DR0=0x10000 test failed with rc=%Rrc!\n", rc);
413	return RT_FAILURE(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS;
414	}
415
416	/* a bad one at VMMRCEntry */
417	RTPrintf("VMM: testing hardware bp at VMMRCEntry (hit)\n");
418	DBGFR3AddrFromFlat(pUVM, &Addr, RCPtrEP);
419	RTUINT iBp1;
420	rc = DBGFR3BpSetReg(pUVM, &Addr, 0, ~(uint64_t)0, X86_DR7_RW_EO, 1, &iBp1);
421	AssertReleaseRC(rc);
422	rc = vmmR3DoGCTest(pVM, VMMRC_DO_TESTCASE_NOP, 0);
423	if (rc != VINF_EM_DBG_HYPER_BREAKPOINT)
424	{
425	RTPrintf("VMM: DR1=VMMRCEntry test failed with rc=%Rrc! expected VINF_EM_RAW_BREAKPOINT_HYPER\n", rc);
426	return RT_FAILURE(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS;
427	}
428
429	/* resume the breakpoint */
430	RTPrintf("VMM: resuming hyper after breakpoint\n");
431	CPUMSetHyperEFlags(pVCpu, CPUMGetHyperEFlags(pVCpu) \| X86_EFL_RF);
432	rc = VMMR3ResumeHyper(pVM, pVCpu);
433	if (rc != VINF_SUCCESS)
434	{
435	RTPrintf("VMM: failed to resume on hyper breakpoint, rc=%Rrc = KNOWN BUG\n", rc); /** @todo fix VMMR3ResumeHyper */
436	return RT_FAILURE(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS;
437	}
438
439	/* engage the breakpoint again and try single stepping. */
440	RTPrintf("VMM: testing hardware bp at VMMRCEntry + stepping\n");
441	rc = vmmR3DoGCTest(pVM, VMMRC_DO_TESTCASE_NOP, 0);
442	if (rc != VINF_EM_DBG_HYPER_BREAKPOINT)
443	{
444	RTPrintf("VMM: DR1=VMMRCEntry test failed with rc=%Rrc! expected VINF_EM_RAW_BREAKPOINT_HYPER\n", rc);
445	return RT_FAILURE(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS;
446	}
447
448	RTGCUINTREG OldPc = CPUMGetHyperEIP(pVCpu);
449	RTPrintf("%RGr=>", OldPc);
450	unsigned i;
451	for (i = 0; i < 8; i++)
452	{
453	CPUMSetHyperEFlags(pVCpu, CPUMGetHyperEFlags(pVCpu) \| X86_EFL_TF \| X86_EFL_RF);
454	rc = VMMR3ResumeHyper(pVM, pVCpu);
455	if (rc != VINF_EM_DBG_HYPER_STEPPED)
456	{
457	RTPrintf("\nVMM: failed to step on hyper breakpoint, rc=%Rrc\n", rc);
458	return RT_FAILURE(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS;
459	}
460	RTGCUINTREG Pc = CPUMGetHyperEIP(pVCpu);
461	RTPrintf("%RGr=>", Pc);
462	if (Pc == OldPc)
463	{
464	RTPrintf("\nVMM: step failed, PC: %RGr -> %RGr\n", OldPc, Pc);
465	return VERR_GENERAL_FAILURE;
466	}
467	OldPc = Pc;
468	}
469	RTPrintf("ok\n");
470
471	/* done, clear it */
472	if ( RT_FAILURE(DBGFR3BpClear(pUVM, iBp0))
473	\|\| RT_FAILURE(DBGFR3BpClear(pUVM, iBp1)))
474	{
475	RTPrintf("VMM: Failed to clear breakpoints!\n");
476	return VERR_GENERAL_FAILURE;
477	}
478	rc = vmmR3DoGCTest(pVM, VMMRC_DO_TESTCASE_NOP, 0);
479	if (rc != VINF_SUCCESS)
480	{
481	RTPrintf("VMM: NOP failed, rc=%Rrc\n", rc);
482	return RT_FAILURE(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS;
483	}
484
485	/*
486	* Interrupt masking. Failure may indiate NMI watchdog activity.
487	*/
488	RTPrintf("VMM: interrupt masking...\n"); RTStrmFlush(g_pStdOut); RTThreadSleep(250);
489	for (i = 0; i < 10000; i++)
490	{
491	uint64_t StartTick = ASMReadTSC();
492	rc = vmmR3DoGCTest(pVM, VMMRC_DO_TESTCASE_INTERRUPT_MASKING, 0);
493	if (rc != VINF_SUCCESS)
494	{
495	RTPrintf("VMM: Interrupt masking failed: rc=%Rrc\n", rc);
496	return RT_FAILURE(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS;
497	}
498	uint64_t Ticks = ASMReadTSC() - StartTick;
499	if (Ticks < (SUPGetCpuHzFromGip(g_pSUPGlobalInfoPage) / 10000))
500	RTPrintf("Warning: Ticks=%RU64 (< %RU64)\n", Ticks, SUPGetCpuHzFromGip(g_pSUPGlobalInfoPage) / 10000);
501	}
502
503	/*
504	* Interrupt forwarding.
505	*/
506	CPUMSetHyperState(pVCpu, pVM->vmm.s.pfnCallTrampolineRC, pVCpu->vmm.s.pbEMTStackBottomRC, 0, 0);
507	CPUMPushHyper(pVCpu, 0);
508	CPUMPushHyper(pVCpu, VMMRC_DO_TESTCASE_HYPER_INTERRUPT);
509	CPUMPushHyper(pVCpu, pVM->pVMRC);
510	CPUMPushHyper(pVCpu, 3 * sizeof(RTRCPTR)); /* stack frame size */
511	CPUMPushHyper(pVCpu, RCPtrEP); /* what to call */
512	Log(("trampoline=%x\n", pVM->vmm.s.pfnCallTrampolineRC));
513
514	/*
515	* Switch and do da thing.
516	*/
517	RTPrintf("VMM: interrupt forwarding...\n"); RTStrmFlush(g_pStdOut); RTThreadSleep(250);
518	i = 0;
519	uint64_t tsBegin = RTTimeNanoTS();
520	uint64_t TickStart = ASMReadTSC();
521	Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
522	do
523	{
524	rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
525	if (RT_LIKELY(rc == VINF_SUCCESS))
526	rc = pVCpu->vmm.s.iLastGZRc;
527	if (RT_FAILURE(rc))
528	{
529	Log(("VMM: GC returned fatal %Rra in iteration %d\n", rc, i));
530	VMMR3FatalDump(pVM, pVCpu, rc);
531	return rc;
532	}
533	i++;
534	if (!(i % 32))
535	Log(("VMM: iteration %d, esi=%08x edi=%08x ebx=%08x\n",
536	i, CPUMGetHyperESI(pVCpu), CPUMGetHyperEDI(pVCpu), CPUMGetHyperEBX(pVCpu)));
537	} while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
538	uint64_t TickEnd = ASMReadTSC();
539	uint64_t tsEnd = RTTimeNanoTS();
540
541	uint64_t Elapsed = tsEnd - tsBegin;
542	uint64_t PerIteration = Elapsed / (uint64_t)i;
543	uint64_t cTicksElapsed = TickEnd - TickStart;
544	uint64_t cTicksPerIteration = cTicksElapsed / (uint64_t)i;
545
546	RTPrintf("VMM: %8d interrupts in %11llu ns (%11llu ticks), %10llu ns/iteration (%11llu ticks)\n",
547	i, Elapsed, cTicksElapsed, PerIteration, cTicksPerIteration);
548	Log(("VMM: %8d interrupts in %11llu ns (%11llu ticks), %10llu ns/iteration (%11llu ticks)\n",
549	i, Elapsed, cTicksElapsed, PerIteration, cTicksPerIteration));
550
551	/*
552	* These forced actions are not necessary for the test and trigger breakpoints too.
553	*/
554	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_TRPM_SYNC_IDT);
555	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_SELM_SYNC_TSS);
556
557	/*
558	* Profile switching.
559	*/
560	RTPrintf("VMM: profiling switcher...\n");
561	Log(("VMM: profiling switcher...\n"));
562	uint64_t TickMin = UINT64_MAX;
563	tsBegin = RTTimeNanoTS();
564	TickStart = ASMReadTSC();
565	Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
566	for (i = 0; i < 1000000; i++)
567	{
568	CPUMSetHyperState(pVCpu, pVM->vmm.s.pfnCallTrampolineRC, pVCpu->vmm.s.pbEMTStackBottomRC, 0, 0);
569	CPUMPushHyper(pVCpu, 0);
570	CPUMPushHyper(pVCpu, VMMRC_DO_TESTCASE_NOP);
571	CPUMPushHyper(pVCpu, pVM->pVMRC);
572	CPUMPushHyper(pVCpu, 3 * sizeof(RTRCPTR)); /* stack frame size */
573	CPUMPushHyper(pVCpu, RCPtrEP); /* what to call */
574
575	uint64_t TickThisStart = ASMReadTSC();
576	rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
577	if (RT_LIKELY(rc == VINF_SUCCESS))
578	rc = pVCpu->vmm.s.iLastGZRc;
579	uint64_t TickThisElapsed = ASMReadTSC() - TickThisStart;
580	if (RT_FAILURE(rc))
581	{
582	Log(("VMM: GC returned fatal %Rra in iteration %d\n", rc, i));
583	VMMR3FatalDump(pVM, pVCpu, rc);
584	return rc;
585	}
586	if (TickThisElapsed < TickMin)
587	TickMin = TickThisElapsed;
588	}
589	TickEnd = ASMReadTSC();
590	tsEnd = RTTimeNanoTS();
591
592	Elapsed = tsEnd - tsBegin;
593	PerIteration = Elapsed / (uint64_t)i;
594	cTicksElapsed = TickEnd - TickStart;
595	cTicksPerIteration = cTicksElapsed / (uint64_t)i;
596
597	RTPrintf("VMM: %8d cycles in %11llu ns (%11lld ticks), %10llu ns/iteration (%11lld ticks) Min %11lld ticks\n",
598	i, Elapsed, cTicksElapsed, PerIteration, cTicksPerIteration, TickMin);
599	Log(("VMM: %8d cycles in %11llu ns (%11lld ticks), %10llu ns/iteration (%11lld ticks) Min %11lld ticks\n",
600	i, Elapsed, cTicksElapsed, PerIteration, cTicksPerIteration, TickMin));
601
602	rc = VINF_SUCCESS;
603
604	# if 0 /* drop this for now as it causes trouble on AMDs (Opteron 2384 and possibly others). */
605	/*
606	* A quick MSR report.
607	*/
608	vmmR3DoMsrQuickReport(pVM, NULL, true);
609	# endif
610	}
611	else
612	AssertMsgFailed(("Failed to resolved VMMRC.rc::VMMRCEntry(), rc=%Rrc\n", rc));
613	#else /* !VBOX_WITH_RAW_MODE */
614	RT_NOREF(pVM);
615	#endif /* !VBOX_WITH_RAW_MODE */
616	return rc;
617	}
618
619	#define SYNC_SEL(pHyperCtx, reg) \
620	if (pHyperCtx->reg.Sel) \
621	{ \
622	DBGFSELINFO selInfo; \
623	int rc2 = SELMR3GetShadowSelectorInfo(pVM, pHyperCtx->reg.Sel, &selInfo); \
624	AssertRC(rc2); \
625	\
626	pHyperCtx->reg.u64Base = selInfo.GCPtrBase; \
627	pHyperCtx->reg.u32Limit = selInfo.cbLimit; \
628	pHyperCtx->reg.Attr.n.u1Present = selInfo.u.Raw.Gen.u1Present; \
629	pHyperCtx->reg.Attr.n.u1DefBig = selInfo.u.Raw.Gen.u1DefBig; \
630	pHyperCtx->reg.Attr.n.u1Granularity = selInfo.u.Raw.Gen.u1Granularity; \
631	pHyperCtx->reg.Attr.n.u4Type = selInfo.u.Raw.Gen.u4Type; \
632	pHyperCtx->reg.Attr.n.u2Dpl = selInfo.u.Raw.Gen.u2Dpl; \
633	pHyperCtx->reg.Attr.n.u1DescType = selInfo.u.Raw.Gen.u1DescType; \
634	pHyperCtx->reg.Attr.n.u1Long = selInfo.u.Raw.Gen.u1Long; \
635	}
636
637	/* execute the switch. */
638	VMMR3DECL(int) VMMDoHmTest(PVM pVM)
639	{
640	uint32_t i;
641	int rc;
642	PCPUMCTX pHyperCtx, pGuestCtx;
643	RTGCPHYS CR3Phys = 0x0; /* fake address */
644	PVMCPU pVCpu = &pVM->aCpus[0];
645
646	if (!HMIsEnabled(pVM))
647	{
648	RTPrintf("VMM: Hardware accelerated test not available!\n");
649	return VERR_ACCESS_DENIED;
650	}
651
652	#ifdef VBOX_WITH_RAW_MODE
653	/*
654	* These forced actions are not necessary for the test and trigger breakpoints too.
655	*/
656	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_TRPM_SYNC_IDT);
657	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_SELM_SYNC_TSS);
658	#endif
659
660	/* Enable mapping of the hypervisor into the shadow page table. */
661	uint32_t cb;
662	rc = PGMR3MappingsSize(pVM, &cb);
663	AssertRCReturn(rc, rc);
664
665	/* Pretend the mappings are now fixed; to force a refresh of the reserved PDEs. */
666	rc = PGMR3MappingsFix(pVM, MM_HYPER_AREA_ADDRESS, cb);
667	AssertRCReturn(rc, rc);
668
669	pHyperCtx = CPUMGetHyperCtxPtr(pVCpu);
670
671	pHyperCtx->cr0 = X86_CR0_PE \| X86_CR0_WP \| X86_CR0_PG \| X86_CR0_TS \| X86_CR0_ET \| X86_CR0_NE \| X86_CR0_MP;
672	pHyperCtx->cr4 = X86_CR4_PGE \| X86_CR4_OSFXSR \| X86_CR4_OSXMMEEXCPT;
673	PGMChangeMode(pVCpu, pHyperCtx->cr0, pHyperCtx->cr4, pHyperCtx->msrEFER);
674	PGMSyncCR3(pVCpu, pHyperCtx->cr0, CR3Phys, pHyperCtx->cr4, true);
675
676	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_TO_R3);
677	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_TIMER);
678	VM_FF_CLEAR(pVM, VM_FF_TM_VIRTUAL_SYNC);
679	VM_FF_CLEAR(pVM, VM_FF_REQUEST);
680
681	/*
682	* Setup stack for calling VMMRCEntry().
683	*/
684	RTRCPTR RCPtrEP;
685	rc = PDMR3LdrGetSymbolRC(pVM, VMMRC_MAIN_MODULE_NAME, "VMMRCEntry", &RCPtrEP);
686	if (RT_SUCCESS(rc))
687	{
688	RTPrintf("VMM: VMMRCEntry=%RRv\n", RCPtrEP);
689
690	pHyperCtx = CPUMGetHyperCtxPtr(pVCpu);
691
692	/* Fill in hidden selector registers for the hypervisor state. */
693	SYNC_SEL(pHyperCtx, cs);
694	SYNC_SEL(pHyperCtx, ds);
695	SYNC_SEL(pHyperCtx, es);
696	SYNC_SEL(pHyperCtx, fs);
697	SYNC_SEL(pHyperCtx, gs);
698	SYNC_SEL(pHyperCtx, ss);
699	SYNC_SEL(pHyperCtx, tr);
700
701	/*
702	* Profile switching.
703	*/
704	RTPrintf("VMM: profiling switcher...\n");
705	Log(("VMM: profiling switcher...\n"));
706	uint64_t TickMin = UINT64_MAX;
707	uint64_t tsBegin = RTTimeNanoTS();
708	uint64_t TickStart = ASMReadTSC();
709	for (i = 0; i < 1000000; i++)
710	{
711	CPUMSetHyperState(pVCpu, pVM->vmm.s.pfnCallTrampolineRC, pVCpu->vmm.s.pbEMTStackBottomRC, 0, 0);
712	CPUMPushHyper(pVCpu, 0);
713	CPUMPushHyper(pVCpu, VMMRC_DO_TESTCASE_HM_NOP);
714	CPUMPushHyper(pVCpu, pVM->pVMRC);
715	CPUMPushHyper(pVCpu, 3 * sizeof(RTRCPTR)); /* stack frame size */
716	CPUMPushHyper(pVCpu, RCPtrEP); /* what to call */
717
718	pHyperCtx = CPUMGetHyperCtxPtr(pVCpu);
719	pGuestCtx = CPUMQueryGuestCtxPtr(pVCpu);
720
721	/* Copy the hypervisor context to make sure we have a valid guest context. */
722	pGuestCtx = pHyperCtx;
723	pGuestCtx->cr3 = CR3Phys;
724
725	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_TO_R3);
726	VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_TIMER);
727	VM_FF_CLEAR(pVM, VM_FF_TM_VIRTUAL_SYNC);
728
729	uint64_t TickThisStart = ASMReadTSC();
730	rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_HM_RUN, 0);
731	uint64_t TickThisElapsed = ASMReadTSC() - TickThisStart;
732	if (RT_FAILURE(rc))
733	{
734	Log(("VMM: R0 returned fatal %Rrc in iteration %d\n", rc, i));
735	VMMR3FatalDump(pVM, pVCpu, rc);
736	return rc;
737	}
738	if (TickThisElapsed < TickMin)
739	TickMin = TickThisElapsed;
740	}
741	uint64_t TickEnd = ASMReadTSC();
742	uint64_t tsEnd = RTTimeNanoTS();
743
744	uint64_t Elapsed = tsEnd - tsBegin;
745	uint64_t PerIteration = Elapsed / (uint64_t)i;
746	uint64_t cTicksElapsed = TickEnd - TickStart;
747	uint64_t cTicksPerIteration = cTicksElapsed / (uint64_t)i;
748
749	RTPrintf("VMM: %8d cycles in %11llu ns (%11lld ticks), %10llu ns/iteration (%11lld ticks) Min %11lld ticks\n",
750	i, Elapsed, cTicksElapsed, PerIteration, cTicksPerIteration, TickMin);
751	Log(("VMM: %8d cycles in %11llu ns (%11lld ticks), %10llu ns/iteration (%11lld ticks) Min %11lld ticks\n",
752	i, Elapsed, cTicksElapsed, PerIteration, cTicksPerIteration, TickMin));
753
754	rc = VINF_SUCCESS;
755	}
756	else
757	AssertMsgFailed(("Failed to resolved VMMRC.rc::VMMRCEntry(), rc=%Rrc\n", rc));
758
759	return rc;
760	}
761
762
763	#ifdef VBOX_WITH_RAW_MODE
764
765	/**
766	* Used by VMMDoBruteForceMsrs to dump the CPUID info of the host CPU as a
767	* prefix to the MSR report.
768	*/
769	static DECLCALLBACK(void) vmmDoPrintfVToStream(PCDBGFINFOHLP pHlp, const char *pszFormat, va_list va)
770	{
771	PRTSTREAM pOutStrm = ((PRTSTREAM *)pHlp)[-1];
772	RTStrmPrintfV(pOutStrm, pszFormat, va);
773	}
774
775	/**
776	* Used by VMMDoBruteForceMsrs to dump the CPUID info of the host CPU as a
777	* prefix to the MSR report.
778	*/
779	static DECLCALLBACK(void) vmmDoPrintfToStream(PCDBGFINFOHLP pHlp, const char *pszFormat, ...)
780	{
781	va_list va;
782	va_start(va, pszFormat);
783	vmmDoPrintfVToStream(pHlp, pszFormat, va);
784	va_end(va);
785	}
786
787	#endif
788
789
790	/**
791	* Uses raw-mode to query all possible MSRs on the real hardware.
792	*
793	* This generates a msr-report.txt file (appending, no overwriting) as well as
794	* writing the values and process to stdout.
795	*
796	* @returns VBox status code.
797	* @param pVM The cross context VM structure.
798	*/
799	VMMR3DECL(int) VMMDoBruteForceMsrs(PVM pVM)
800	{
801	#ifdef VBOX_WITH_RAW_MODE
802	PRTSTREAM pOutStrm;
803	int rc = RTStrmOpen("msr-report.txt", "a", &pOutStrm);
804	if (RT_SUCCESS(rc))
805	{
806	/* Header */
807	struct
808	{
809	PRTSTREAM pOutStrm;
810	DBGFINFOHLP Hlp;
811	} MyHlp = { pOutStrm, { vmmDoPrintfToStream, vmmDoPrintfVToStream } };
812	DBGFR3Info(pVM->pUVM, "cpuid", "verbose", &MyHlp.Hlp);
813	RTStrmPrintf(pOutStrm, "\n");
814
815	uint32_t cMsrsFound = 0;
816	vmmR3ReportMsrRange(pVM, 0, _4G, pOutStrm, &cMsrsFound);
817
818	RTStrmPrintf(pOutStrm, "Total %u (%#x) MSRs\n", cMsrsFound, cMsrsFound);
819	RTPrintf("Total %u (%#x) MSRs\n", cMsrsFound, cMsrsFound);
820
821	RTStrmClose(pOutStrm);
822	}
823	return rc;
824	#else
825	RT_NOREF(pVM);
826	return VERR_NOT_SUPPORTED;
827	#endif
828	}
829
830
831	/**
832	* Uses raw-mode to query all known MSRS on the real hardware.
833	*
834	* This generates a known-msr-report.txt file (appending, no overwriting) as
835	* well as writing the values and process to stdout.
836	*
837	* @returns VBox status code.
838	* @param pVM The cross context VM structure.
839	*/
840	VMMR3DECL(int) VMMDoKnownMsrs(PVM pVM)
841	{
842	#ifdef VBOX_WITH_RAW_MODE
843	PRTSTREAM pOutStrm;
844	int rc = RTStrmOpen("known-msr-report.txt", "a", &pOutStrm);
845	if (RT_SUCCESS(rc))
846	{
847	vmmR3DoMsrQuickReport(pVM, pOutStrm, false);
848	RTStrmClose(pOutStrm);
849	}
850	return rc;
851	#else
852	RT_NOREF(pVM);
853	return VERR_NOT_SUPPORTED;
854	#endif
855	}
856
857
858	/**
859	* MSR experimentation.
860	*
861	* @returns VBox status code.
862	* @param pVM The cross context VM structure.
863	*/
864	VMMR3DECL(int) VMMDoMsrExperiments(PVM pVM)
865	{
866	#ifdef VBOX_WITH_RAW_MODE
867	/*
868	* Preps.
869	*/
870	RTRCPTR RCPtrEP;
871	int rc = PDMR3LdrGetSymbolRC(pVM, VMMRC_MAIN_MODULE_NAME, "VMMRCTestTestWriteMsr", &RCPtrEP);
872	AssertMsgRCReturn(rc, ("Failed to resolved VMMRC.rc::VMMRCEntry(), rc=%Rrc\n", rc), rc);
873
874	uint64_t *pauValues;
875	rc = MMHyperAlloc(pVM, 2 * sizeof(uint64_t), 0, MM_TAG_VMM, (void **)&pauValues);
876	AssertMsgRCReturn(rc, ("Error allocating %#x bytes off the hyper heap: %Rrc\n", 2 * sizeof(uint64_t), rc), rc);
877	RTRCPTR RCPtrValues = MMHyperR3ToRC(pVM, pauValues);
878
879	/*
880	* Do the experiments.
881	*/
882	uint32_t uMsr = 0x00000277;
883	uint64_t uValue = UINT64_C(0x0007010600070106);
884	# if 0
885	uValue &= ~(RT_BIT_64(17) \| RT_BIT_64(16) \| RT_BIT_64(15) \| RT_BIT_64(14) \| RT_BIT_64(13));
886	uValue \|= RT_BIT_64(13);
887	rc = VMMR3CallRC(pVM, RCPtrEP, 6, pVM->pVMRC, uMsr, RT_LODWORD(uValue), RT_HIDWORD(uValue),
888	RCPtrValues, RCPtrValues + sizeof(uint64_t));
889	RTPrintf("uMsr=%#010x before=%#018llx written=%#018llx after=%#018llx rc=%Rrc\n",
890	uMsr, pauValues[0], uValue, pauValues[1], rc);
891	# elif 1
892	const uint64_t uOrgValue = uValue;
893	uint32_t cChanges = 0;
894	for (int iBit = 63; iBit >= 58; iBit--)
895	{
896	uValue = uOrgValue & ~RT_BIT_64(iBit);
897	rc = VMMR3CallRC(pVM, RCPtrEP, 6, pVM->pVMRC, uMsr, RT_LODWORD(uValue), RT_HIDWORD(uValue),
898	RCPtrValues, RCPtrValues + sizeof(uint64_t));
899	RTPrintf("uMsr=%#010x before=%#018llx written=%#018llx after=%#018llx rc=%Rrc\nclear bit=%u -> %s\n",
900	uMsr, pauValues[0], uValue, pauValues[1], rc, iBit,
901	(pauValues[0] ^ pauValues[1]) & RT_BIT_64(iBit) ? "changed" : "unchanged");
902	cChanges += RT_BOOL(pauValues[0] ^ pauValues[1]);
903
904	uValue = uOrgValue \| RT_BIT_64(iBit);
905	rc = VMMR3CallRC(pVM, RCPtrEP, 6, pVM->pVMRC, uMsr, RT_LODWORD(uValue), RT_HIDWORD(uValue),
906	RCPtrValues, RCPtrValues + sizeof(uint64_t));
907	RTPrintf("uMsr=%#010x before=%#018llx written=%#018llx after=%#018llx rc=%Rrc\nset bit=%u -> %s\n",
908	uMsr, pauValues[0], uValue, pauValues[1], rc, iBit,
909	(pauValues[0] ^ pauValues[1]) & RT_BIT_64(iBit) ? "changed" : "unchanged");
910	cChanges += RT_BOOL(pauValues[0] ^ pauValues[1]);
911	}
912	RTPrintf("%u change(s)\n", cChanges);
913	# else
914	uint64_t fWriteable = 0;
915	for (uint32_t i = 0; i <= 63; i++)
916	{
917	uValue = RT_BIT_64(i);
918	# if 0
919	if (uValue & (0x7))
920	continue;
921	# endif
922	rc = VMMR3CallRC(pVM, RCPtrEP, 6, pVM->pVMRC, uMsr, RT_LODWORD(uValue), RT_HIDWORD(uValue),
923	RCPtrValues, RCPtrValues + sizeof(uint64_t));
924	RTPrintf("uMsr=%#010x before=%#018llx written=%#018llx after=%#018llx rc=%Rrc\n",
925	uMsr, pauValues[0], uValue, pauValues[1], rc);
926	if (RT_SUCCESS(rc))
927	fWriteable \|= RT_BIT_64(i);
928	}
929
930	uValue = 0;
931	rc = VMMR3CallRC(pVM, RCPtrEP, 6, pVM->pVMRC, uMsr, RT_LODWORD(uValue), RT_HIDWORD(uValue),
932	RCPtrValues, RCPtrValues + sizeof(uint64_t));
933	RTPrintf("uMsr=%#010x before=%#018llx written=%#018llx after=%#018llx rc=%Rrc\n",
934	uMsr, pauValues[0], uValue, pauValues[1], rc);
935
936	uValue = UINT64_MAX;
937	rc = VMMR3CallRC(pVM, RCPtrEP, 6, pVM->pVMRC, uMsr, RT_LODWORD(uValue), RT_HIDWORD(uValue),
938	RCPtrValues, RCPtrValues + sizeof(uint64_t));
939	RTPrintf("uMsr=%#010x before=%#018llx written=%#018llx after=%#018llx rc=%Rrc\n",
940	uMsr, pauValues[0], uValue, pauValues[1], rc);
941
942	uValue = fWriteable;
943	rc = VMMR3CallRC(pVM, RCPtrEP, 6, pVM->pVMRC, uMsr, RT_LODWORD(uValue), RT_HIDWORD(uValue),
944	RCPtrValues, RCPtrValues + sizeof(uint64_t));
945	RTPrintf("uMsr=%#010x before=%#018llx written=%#018llx after=%#018llx rc=%Rrc [fWriteable]\n",
946	uMsr, pauValues[0], uValue, pauValues[1], rc);
947
948	# endif
949
950	/*
951	* Cleanups.
952	*/
953	MMHyperFree(pVM, pauValues);
954	return rc;
955	#else
956	RT_NOREF(pVM);
957	return VERR_NOT_SUPPORTED;
958	#endif
959	}
960

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source: vbox/trunk/src/VBox/VMM/VMMR3/VMMTests.cpp@ 70161

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