1 | /* $Id: VMMTests.cpp 56051 2015-05-24 14:11:46Z vboxsync $ */
|
---|
2 | /** @file
|
---|
3 | * VMM - The Virtual Machine Monitor Core, Tests.
|
---|
4 | */
|
---|
5 |
|
---|
6 | /*
|
---|
7 | * Copyright (C) 2006-2013 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 | * Header Files *
|
---|
22 | *******************************************************************************/
|
---|
23 | #define LOG_GROUP LOG_GROUP_VMM
|
---|
24 | #include <iprt/asm-amd64-x86.h> /* for SUPGetCpuHzFromGIP */
|
---|
25 | #include <VBox/vmm/vmm.h>
|
---|
26 | #include <VBox/vmm/pdmapi.h>
|
---|
27 | #include <VBox/vmm/cpum.h>
|
---|
28 | #include <VBox/dbg.h>
|
---|
29 | #include <VBox/vmm/hm.h>
|
---|
30 | #include <VBox/vmm/mm.h>
|
---|
31 | #include <VBox/vmm/trpm.h>
|
---|
32 | #include <VBox/vmm/selm.h>
|
---|
33 | #include "VMMInternal.h"
|
---|
34 | #include <VBox/vmm/vm.h>
|
---|
35 | #include <VBox/err.h>
|
---|
36 | #include <VBox/param.h>
|
---|
37 |
|
---|
38 | #include <iprt/assert.h>
|
---|
39 | #include <iprt/asm.h>
|
---|
40 | #include <iprt/time.h>
|
---|
41 | #include <iprt/stream.h>
|
---|
42 | #include <iprt/string.h>
|
---|
43 | #include <iprt/x86.h>
|
---|
44 |
|
---|
45 | static void vmmR3TestClearStack(PVMCPU pVCpu)
|
---|
46 | {
|
---|
47 | /* We leave the first 64 bytes of the stack alone because of strict
|
---|
48 | ring-0 long jump code uses it. */
|
---|
49 | memset(pVCpu->vmm.s.pbEMTStackR3 + 64, 0xaa, VMM_STACK_SIZE - 64);
|
---|
50 | }
|
---|
51 |
|
---|
52 |
|
---|
53 | #ifdef VBOX_WITH_RAW_MODE
|
---|
54 |
|
---|
55 | static int vmmR3ReportMsrRange(PVM pVM, uint32_t uMsr, uint64_t cMsrs, PRTSTREAM pReportStrm, uint32_t *pcMsrsFound)
|
---|
56 | {
|
---|
57 | /*
|
---|
58 | * Preps.
|
---|
59 | */
|
---|
60 | RTRCPTR RCPtrEP;
|
---|
61 | int rc = PDMR3LdrGetSymbolRC(pVM, VMMRC_MAIN_MODULE_NAME, "VMMRCTestReadMsrs", &RCPtrEP);
|
---|
62 | AssertMsgRCReturn(rc, ("Failed to resolved VMMRC.rc::VMMRCEntry(), rc=%Rrc\n", rc), rc);
|
---|
63 |
|
---|
64 | uint32_t const cMsrsPerCall = 16384;
|
---|
65 | uint32_t cbResults = cMsrsPerCall * sizeof(VMMTESTMSRENTRY);
|
---|
66 | PVMMTESTMSRENTRY paResults;
|
---|
67 | rc = MMHyperAlloc(pVM, cbResults, 0, MM_TAG_VMM, (void **)&paResults);
|
---|
68 | AssertMsgRCReturn(rc, ("Error allocating %#x bytes off the hyper heap: %Rrc\n", cbResults, rc), rc);
|
---|
69 | /*
|
---|
70 | * The loop.
|
---|
71 | */
|
---|
72 | RTRCPTR RCPtrResults = MMHyperR3ToRC(pVM, paResults);
|
---|
73 | uint32_t cMsrsFound = 0;
|
---|
74 | uint32_t uLastMsr = uMsr;
|
---|
75 | uint64_t uNsTsStart = RTTimeNanoTS();
|
---|
76 |
|
---|
77 | for (;;)
|
---|
78 | {
|
---|
79 | if ( pReportStrm
|
---|
80 | && uMsr - uLastMsr > _64K
|
---|
81 | && (uMsr & (_4M - 1)) == 0)
|
---|
82 | {
|
---|
83 | if (uMsr - uLastMsr < 16U*_1M)
|
---|
84 | RTStrmFlush(pReportStrm);
|
---|
85 | RTPrintf("... %#010x [%u ns/msr] ...\n", uMsr, (RTTimeNanoTS() - uNsTsStart) / uMsr);
|
---|
86 | }
|
---|
87 |
|
---|
88 | /*RT_BZERO(paResults, cbResults);*/
|
---|
89 | uint32_t const cBatch = RT_MIN(cMsrsPerCall, cMsrs);
|
---|
90 | rc = VMMR3CallRC(pVM, RCPtrEP, 4, pVM->pVMRC, uMsr, cBatch, RCPtrResults);
|
---|
91 | if (RT_FAILURE(rc))
|
---|
92 | {
|
---|
93 | RTPrintf("VMM: VMMR3CallRC failed rc=%Rrc, uMsr=%#x\n", rc, uMsr);
|
---|
94 | break;
|
---|
95 | }
|
---|
96 |
|
---|
97 | for (uint32_t i = 0; i < cBatch; i++)
|
---|
98 | if (paResults[i].uMsr != UINT64_MAX)
|
---|
99 | {
|
---|
100 | if (paResults[i].uValue == 0)
|
---|
101 | {
|
---|
102 | if (pReportStrm)
|
---|
103 | RTStrmPrintf(pReportStrm,
|
---|
104 | " MVO(%#010llx, \"MSR\", UINT64_C(%#018llx)),\n", paResults[i].uMsr, paResults[i].uValue);
|
---|
105 | RTPrintf("%#010llx = 0\n", paResults[i].uMsr);
|
---|
106 | }
|
---|
107 | else
|
---|
108 | {
|
---|
109 | if (pReportStrm)
|
---|
110 | RTStrmPrintf(pReportStrm,
|
---|
111 | " MVO(%#010llx, \"MSR\", UINT64_C(%#018llx)),\n", paResults[i].uMsr, paResults[i].uValue);
|
---|
112 | RTPrintf("%#010llx = %#010x`%08x\n", paResults[i].uMsr,
|
---|
113 | (uint32_t)(paResults[i].uValue >> 32), (uint32_t)paResults[i].uValue);
|
---|
114 | }
|
---|
115 | cMsrsFound++;
|
---|
116 | uLastMsr = paResults[i].uMsr;
|
---|
117 | }
|
---|
118 |
|
---|
119 | /* Advance. */
|
---|
120 | if (cMsrs <= cMsrsPerCall)
|
---|
121 | break;
|
---|
122 | cMsrs -= cMsrsPerCall;
|
---|
123 | uMsr += cMsrsPerCall;
|
---|
124 | }
|
---|
125 |
|
---|
126 | *pcMsrsFound += cMsrsFound;
|
---|
127 | MMHyperFree(pVM, paResults);
|
---|
128 | return rc;
|
---|
129 | }
|
---|
130 |
|
---|
131 |
|
---|
132 | /**
|
---|
133 | * Produces a quick report of MSRs.
|
---|
134 | *
|
---|
135 | * @returns VBox status code.
|
---|
136 | * @param pVM Pointer to the cross context VM structure.
|
---|
137 | * @param pReportStrm Pointer to the report output stream. Optional.
|
---|
138 | * @param fWithCpuId Whether CPUID should be included.
|
---|
139 | */
|
---|
140 | static int vmmR3DoMsrQuickReport(PVM pVM, PRTSTREAM pReportStrm, bool fWithCpuId)
|
---|
141 | {
|
---|
142 | uint64_t uTsStart = RTTimeNanoTS();
|
---|
143 | RTPrintf("=== MSR Quick Report Start ===\n");
|
---|
144 | RTStrmFlush(g_pStdOut);
|
---|
145 | if (fWithCpuId)
|
---|
146 | {
|
---|
147 | DBGFR3InfoStdErr(pVM->pUVM, "cpuid", "verbose");
|
---|
148 | RTPrintf("\n");
|
---|
149 | }
|
---|
150 | if (pReportStrm)
|
---|
151 | RTStrmPrintf(pReportStrm, "\n\n{\n");
|
---|
152 |
|
---|
153 | static struct { uint32_t uFirst, cMsrs; } const s_aRanges[] =
|
---|
154 | {
|
---|
155 | { 0x00000000, 0x00042000 },
|
---|
156 | { 0x10000000, 0x00001000 },
|
---|
157 | { 0x20000000, 0x00001000 },
|
---|
158 | { 0x40000000, 0x00012000 },
|
---|
159 | { 0x80000000, 0x00012000 },
|
---|
160 | // Need 0xc0000000..0xc001106f (at least), but trouble on solaris w/ 10h and 0fh family cpus:
|
---|
161 | // { 0xc0000000, 0x00022000 },
|
---|
162 | { 0xc0000000, 0x00010000 },
|
---|
163 | { 0xc0010000, 0x00001040 },
|
---|
164 | { 0xc0011040, 0x00004040 }, /* should cause trouble... */
|
---|
165 | };
|
---|
166 | uint32_t cMsrsFound = 0;
|
---|
167 | int rc = VINF_SUCCESS;
|
---|
168 | for (unsigned i = 0; i < RT_ELEMENTS(s_aRanges) && RT_SUCCESS(rc); i++)
|
---|
169 | {
|
---|
170 | //if (i >= 3)
|
---|
171 | //{
|
---|
172 | //RTStrmFlush(g_pStdOut);
|
---|
173 | //RTThreadSleep(40);
|
---|
174 | //}
|
---|
175 | rc = vmmR3ReportMsrRange(pVM, s_aRanges[i].uFirst, s_aRanges[i].cMsrs, pReportStrm, &cMsrsFound);
|
---|
176 | }
|
---|
177 |
|
---|
178 | if (pReportStrm)
|
---|
179 | RTStrmPrintf(pReportStrm, "}; /* %u (%#x) MSRs; rc=%Rrc */\n", cMsrsFound, cMsrsFound, rc);
|
---|
180 | RTPrintf("Total %u (%#x) MSRs\n", cMsrsFound, cMsrsFound);
|
---|
181 | RTPrintf("=== MSR Quick Report End (rc=%Rrc, %'llu ns) ===\n", rc, RTTimeNanoTS() - uTsStart);
|
---|
182 | return rc;
|
---|
183 | }
|
---|
184 |
|
---|
185 |
|
---|
186 | /**
|
---|
187 | * Performs a testcase.
|
---|
188 | *
|
---|
189 | * @returns return value from the test.
|
---|
190 | * @param pVM Pointer to the VM.
|
---|
191 | * @param enmTestcase The testcase operation to perform.
|
---|
192 | * @param uVariation The testcase variation id.
|
---|
193 | */
|
---|
194 | static int vmmR3DoGCTest(PVM pVM, VMMGCOPERATION enmTestcase, unsigned uVariation)
|
---|
195 | {
|
---|
196 | PVMCPU pVCpu = &pVM->aCpus[0];
|
---|
197 |
|
---|
198 | RTRCPTR RCPtrEP;
|
---|
199 | int rc = PDMR3LdrGetSymbolRC(pVM, VMMRC_MAIN_MODULE_NAME, "VMMGCEntry", &RCPtrEP);
|
---|
200 | if (RT_FAILURE(rc))
|
---|
201 | return rc;
|
---|
202 |
|
---|
203 | Log(("vmmR3DoGCTest: %d %#x\n", enmTestcase, uVariation));
|
---|
204 | CPUMSetHyperState(pVCpu, pVM->vmm.s.pfnCallTrampolineRC, pVCpu->vmm.s.pbEMTStackBottomRC, 0, 0);
|
---|
205 | vmmR3TestClearStack(pVCpu);
|
---|
206 | CPUMPushHyper(pVCpu, uVariation);
|
---|
207 | CPUMPushHyper(pVCpu, enmTestcase);
|
---|
208 | CPUMPushHyper(pVCpu, pVM->pVMRC);
|
---|
209 | CPUMPushHyper(pVCpu, 3 * sizeof(RTRCPTR)); /* stack frame size */
|
---|
210 | CPUMPushHyper(pVCpu, RCPtrEP); /* what to call */
|
---|
211 | Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
|
---|
212 | rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
|
---|
213 |
|
---|
214 | #if 1
|
---|
215 | /* flush the raw-mode logs. */
|
---|
216 | # ifdef LOG_ENABLED
|
---|
217 | PRTLOGGERRC pLogger = pVM->vmm.s.pRCLoggerR3;
|
---|
218 | if ( pLogger
|
---|
219 | && pLogger->offScratch > 0)
|
---|
220 | RTLogFlushRC(NULL, pLogger);
|
---|
221 | # endif
|
---|
222 | # ifdef VBOX_WITH_RC_RELEASE_LOGGING
|
---|
223 | PRTLOGGERRC pRelLogger = pVM->vmm.s.pRCRelLoggerR3;
|
---|
224 | if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
|
---|
225 | RTLogFlushRC(RTLogRelGetDefaultInstance(), pRelLogger);
|
---|
226 | # endif
|
---|
227 | #endif
|
---|
228 |
|
---|
229 | Log(("vmmR3DoGCTest: rc=%Rrc iLastGZRc=%Rrc\n", rc, pVCpu->vmm.s.iLastGZRc));
|
---|
230 | if (RT_LIKELY(rc == VINF_SUCCESS))
|
---|
231 | rc = pVCpu->vmm.s.iLastGZRc;
|
---|
232 | return rc;
|
---|
233 | }
|
---|
234 |
|
---|
235 |
|
---|
236 | /**
|
---|
237 | * Performs a trap test.
|
---|
238 | *
|
---|
239 | * @returns Return value from the trap test.
|
---|
240 | * @param pVM Pointer to the VM.
|
---|
241 | * @param u8Trap The trap number to test.
|
---|
242 | * @param uVariation The testcase variation.
|
---|
243 | * @param rcExpect The expected result.
|
---|
244 | * @param u32Eax The expected eax value.
|
---|
245 | * @param pszFaultEIP The fault address. Pass NULL if this isn't available or doesn't apply.
|
---|
246 | * @param pszDesc The test description.
|
---|
247 | */
|
---|
248 | static int vmmR3DoTrapTest(PVM pVM, uint8_t u8Trap, unsigned uVariation, int rcExpect, uint32_t u32Eax, const char *pszFaultEIP, const char *pszDesc)
|
---|
249 | {
|
---|
250 | PVMCPU pVCpu = &pVM->aCpus[0];
|
---|
251 |
|
---|
252 | RTPrintf("VMM: testing 0%x / %d - %s\n", u8Trap, uVariation, pszDesc);
|
---|
253 |
|
---|
254 | RTRCPTR RCPtrEP;
|
---|
255 | int rc = PDMR3LdrGetSymbolRC(pVM, VMMRC_MAIN_MODULE_NAME, "VMMGCEntry", &RCPtrEP);
|
---|
256 | if (RT_FAILURE(rc))
|
---|
257 | return rc;
|
---|
258 |
|
---|
259 | CPUMSetHyperState(pVCpu, pVM->vmm.s.pfnCallTrampolineRC, pVCpu->vmm.s.pbEMTStackBottomRC, 0, 0);
|
---|
260 | vmmR3TestClearStack(pVCpu);
|
---|
261 | CPUMPushHyper(pVCpu, uVariation);
|
---|
262 | CPUMPushHyper(pVCpu, u8Trap + VMMGC_DO_TESTCASE_TRAP_FIRST);
|
---|
263 | CPUMPushHyper(pVCpu, pVM->pVMRC);
|
---|
264 | CPUMPushHyper(pVCpu, 3 * sizeof(RTRCPTR)); /* stack frame size */
|
---|
265 | CPUMPushHyper(pVCpu, RCPtrEP); /* what to call */
|
---|
266 | Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
|
---|
267 | rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
|
---|
268 | if (RT_LIKELY(rc == VINF_SUCCESS))
|
---|
269 | rc = pVCpu->vmm.s.iLastGZRc;
|
---|
270 | bool fDump = false;
|
---|
271 | if (rc != rcExpect)
|
---|
272 | {
|
---|
273 | RTPrintf("VMM: FAILURE - rc=%Rrc expected %Rrc\n", rc, rcExpect);
|
---|
274 | if (rc != VERR_NOT_IMPLEMENTED)
|
---|
275 | fDump = true;
|
---|
276 | }
|
---|
277 | else if ( rcExpect != VINF_SUCCESS
|
---|
278 | && u8Trap != 8 /* double fault doesn't dare set TrapNo. */
|
---|
279 | && u8Trap != 3 /* guest only, we're not in guest. */
|
---|
280 | && u8Trap != 1 /* guest only, we're not in guest. */
|
---|
281 | && u8Trap != TRPMGetTrapNo(pVCpu))
|
---|
282 | {
|
---|
283 | RTPrintf("VMM: FAILURE - Trap %#x expected %#x\n", TRPMGetTrapNo(pVCpu), u8Trap);
|
---|
284 | fDump = true;
|
---|
285 | }
|
---|
286 | else if (pszFaultEIP)
|
---|
287 | {
|
---|
288 | RTRCPTR RCPtrFault;
|
---|
289 | int rc2 = PDMR3LdrGetSymbolRC(pVM, VMMRC_MAIN_MODULE_NAME, pszFaultEIP, &RCPtrFault);
|
---|
290 | if (RT_FAILURE(rc2))
|
---|
291 | RTPrintf("VMM: FAILURE - Failed to resolve symbol '%s', %Rrc!\n", pszFaultEIP, rc);
|
---|
292 | else if (RCPtrFault != CPUMGetHyperEIP(pVCpu))
|
---|
293 | {
|
---|
294 | RTPrintf("VMM: FAILURE - EIP=%08RX32 expected %RRv (%s)\n", CPUMGetHyperEIP(pVCpu), RCPtrFault, pszFaultEIP);
|
---|
295 | fDump = true;
|
---|
296 | }
|
---|
297 | }
|
---|
298 | else if (rcExpect != VINF_SUCCESS)
|
---|
299 | {
|
---|
300 | if (CPUMGetHyperSS(pVCpu) == SELMGetHyperDS(pVM))
|
---|
301 | RTPrintf("VMM: FAILURE - ss=%x expected %x\n", CPUMGetHyperSS(pVCpu), SELMGetHyperDS(pVM));
|
---|
302 | if (CPUMGetHyperES(pVCpu) == SELMGetHyperDS(pVM))
|
---|
303 | RTPrintf("VMM: FAILURE - es=%x expected %x\n", CPUMGetHyperES(pVCpu), SELMGetHyperDS(pVM));
|
---|
304 | if (CPUMGetHyperDS(pVCpu) == SELMGetHyperDS(pVM))
|
---|
305 | RTPrintf("VMM: FAILURE - ds=%x expected %x\n", CPUMGetHyperDS(pVCpu), SELMGetHyperDS(pVM));
|
---|
306 | if (CPUMGetHyperFS(pVCpu) == SELMGetHyperDS(pVM))
|
---|
307 | RTPrintf("VMM: FAILURE - fs=%x expected %x\n", CPUMGetHyperFS(pVCpu), SELMGetHyperDS(pVM));
|
---|
308 | if (CPUMGetHyperGS(pVCpu) == SELMGetHyperDS(pVM))
|
---|
309 | RTPrintf("VMM: FAILURE - gs=%x expected %x\n", CPUMGetHyperGS(pVCpu), SELMGetHyperDS(pVM));
|
---|
310 | if (CPUMGetHyperEDI(pVCpu) == 0x01234567)
|
---|
311 | RTPrintf("VMM: FAILURE - edi=%x expected %x\n", CPUMGetHyperEDI(pVCpu), 0x01234567);
|
---|
312 | if (CPUMGetHyperESI(pVCpu) == 0x42000042)
|
---|
313 | RTPrintf("VMM: FAILURE - esi=%x expected %x\n", CPUMGetHyperESI(pVCpu), 0x42000042);
|
---|
314 | if (CPUMGetHyperEBP(pVCpu) == 0xffeeddcc)
|
---|
315 | RTPrintf("VMM: FAILURE - ebp=%x expected %x\n", CPUMGetHyperEBP(pVCpu), 0xffeeddcc);
|
---|
316 | if (CPUMGetHyperEBX(pVCpu) == 0x89abcdef)
|
---|
317 | RTPrintf("VMM: FAILURE - ebx=%x expected %x\n", CPUMGetHyperEBX(pVCpu), 0x89abcdef);
|
---|
318 | if (CPUMGetHyperECX(pVCpu) == 0xffffaaaa)
|
---|
319 | RTPrintf("VMM: FAILURE - ecx=%x expected %x\n", CPUMGetHyperECX(pVCpu), 0xffffaaaa);
|
---|
320 | if (CPUMGetHyperEDX(pVCpu) == 0x77778888)
|
---|
321 | RTPrintf("VMM: FAILURE - edx=%x expected %x\n", CPUMGetHyperEDX(pVCpu), 0x77778888);
|
---|
322 | if (CPUMGetHyperEAX(pVCpu) == u32Eax)
|
---|
323 | RTPrintf("VMM: FAILURE - eax=%x expected %x\n", CPUMGetHyperEAX(pVCpu), u32Eax);
|
---|
324 | }
|
---|
325 | if (fDump)
|
---|
326 | VMMR3FatalDump(pVM, pVCpu, rc);
|
---|
327 | return rc;
|
---|
328 | }
|
---|
329 |
|
---|
330 | #endif /* VBOX_WITH_RAW_MODE */
|
---|
331 |
|
---|
332 |
|
---|
333 | /* execute the switch. */
|
---|
334 | VMMR3DECL(int) VMMDoTest(PVM pVM)
|
---|
335 | {
|
---|
336 | int rc = VINF_SUCCESS;
|
---|
337 |
|
---|
338 | #ifdef VBOX_WITH_RAW_MODE
|
---|
339 | PVMCPU pVCpu = &pVM->aCpus[0];
|
---|
340 | PUVM pUVM = pVM->pUVM;
|
---|
341 |
|
---|
342 | # ifdef NO_SUPCALLR0VMM
|
---|
343 | RTPrintf("NO_SUPCALLR0VMM\n");
|
---|
344 | return rc;
|
---|
345 | # endif
|
---|
346 |
|
---|
347 | /*
|
---|
348 | * Setup stack for calling VMMGCEntry().
|
---|
349 | */
|
---|
350 | RTRCPTR RCPtrEP;
|
---|
351 | rc = PDMR3LdrGetSymbolRC(pVM, VMMRC_MAIN_MODULE_NAME, "VMMGCEntry", &RCPtrEP);
|
---|
352 | if (RT_SUCCESS(rc))
|
---|
353 | {
|
---|
354 | RTPrintf("VMM: VMMGCEntry=%RRv\n", RCPtrEP);
|
---|
355 |
|
---|
356 | /*
|
---|
357 | * Test various crashes which we must be able to recover from.
|
---|
358 | */
|
---|
359 | vmmR3DoTrapTest(pVM, 0x3, 0, VINF_EM_DBG_HYPER_ASSERTION, 0xf0f0f0f0, "vmmGCTestTrap3_FaultEIP", "int3");
|
---|
360 | vmmR3DoTrapTest(pVM, 0x3, 1, VINF_EM_DBG_HYPER_ASSERTION, 0xf0f0f0f0, "vmmGCTestTrap3_FaultEIP", "int3 WP");
|
---|
361 |
|
---|
362 | # if 0//defined(DEBUG_bird) /* guess most people would like to skip these since they write to com1. */
|
---|
363 | vmmR3DoTrapTest(pVM, 0x8, 0, VERR_TRPM_PANIC, 0x00000000, "vmmGCTestTrap8_FaultEIP", "#DF [#PG]");
|
---|
364 | SELMR3Relocate(pVM); /* this resets the busy flag of the Trap 08 TSS */
|
---|
365 | bool f;
|
---|
366 | rc = CFGMR3QueryBool(CFGMR3GetRoot(pVM), "DoubleFault", &f);
|
---|
367 | # if !defined(DEBUG_bird)
|
---|
368 | if (RT_SUCCESS(rc) && f)
|
---|
369 | # endif
|
---|
370 | {
|
---|
371 | /* see triple fault warnings in SELM and VMMGC.cpp. */
|
---|
372 | vmmR3DoTrapTest(pVM, 0x8, 1, VERR_TRPM_PANIC, 0x00000000, "vmmGCTestTrap8_FaultEIP", "#DF [#PG] WP");
|
---|
373 | SELMR3Relocate(pVM); /* this resets the busy flag of the Trap 08 TSS */
|
---|
374 | }
|
---|
375 | # endif
|
---|
376 |
|
---|
377 | vmmR3DoTrapTest(pVM, 0xd, 0, VERR_TRPM_DONT_PANIC, 0xf0f0f0f0, "vmmGCTestTrap0d_FaultEIP", "ltr #GP");
|
---|
378 | ///@todo find a better \#GP case, on intel ltr will \#PF (busy update?) and not \#GP.
|
---|
379 | //vmmR3DoTrapTest(pVM, 0xd, 1, VERR_TRPM_DONT_PANIC, 0xf0f0f0f0, "vmmGCTestTrap0d_FaultEIP", "ltr #GP WP");
|
---|
380 |
|
---|
381 | vmmR3DoTrapTest(pVM, 0xe, 0, VERR_TRPM_DONT_PANIC, 0x00000000, "vmmGCTestTrap0e_FaultEIP", "#PF (NULL)");
|
---|
382 | vmmR3DoTrapTest(pVM, 0xe, 1, VERR_TRPM_DONT_PANIC, 0x00000000, "vmmGCTestTrap0e_FaultEIP", "#PF (NULL) WP");
|
---|
383 | vmmR3DoTrapTest(pVM, 0xe, 2, VINF_SUCCESS, 0x00000000, NULL, "#PF w/Tmp Handler");
|
---|
384 | /* This test is no longer relevant as fs and gs are loaded with NULL
|
---|
385 | selectors and we will always return to HC if a #GP occurs while
|
---|
386 | returning to guest code.
|
---|
387 | vmmR3DoTrapTest(pVM, 0xe, 4, VINF_SUCCESS, 0x00000000, NULL, "#PF w/Tmp Handler and bad fs");
|
---|
388 | */
|
---|
389 |
|
---|
390 | /*
|
---|
391 | * Set a debug register and perform a context switch.
|
---|
392 | */
|
---|
393 | rc = vmmR3DoGCTest(pVM, VMMGC_DO_TESTCASE_NOP, 0);
|
---|
394 | if (rc != VINF_SUCCESS)
|
---|
395 | {
|
---|
396 | RTPrintf("VMM: Nop test failed, rc=%Rrc not VINF_SUCCESS\n", rc);
|
---|
397 | return RT_FAILURE(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS;
|
---|
398 | }
|
---|
399 |
|
---|
400 | /* a harmless breakpoint */
|
---|
401 | RTPrintf("VMM: testing hardware bp at 0x10000 (not hit)\n");
|
---|
402 | DBGFADDRESS Addr;
|
---|
403 | DBGFR3AddrFromFlat(pUVM, &Addr, 0x10000);
|
---|
404 | RTUINT iBp0;
|
---|
405 | rc = DBGFR3BpSetReg(pUVM, &Addr, 0, ~(uint64_t)0, X86_DR7_RW_EO, 1, &iBp0);
|
---|
406 | AssertReleaseRC(rc);
|
---|
407 | rc = vmmR3DoGCTest(pVM, VMMGC_DO_TESTCASE_NOP, 0);
|
---|
408 | if (rc != VINF_SUCCESS)
|
---|
409 | {
|
---|
410 | RTPrintf("VMM: DR0=0x10000 test failed with rc=%Rrc!\n", rc);
|
---|
411 | return RT_FAILURE(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS;
|
---|
412 | }
|
---|
413 |
|
---|
414 | /* a bad one at VMMGCEntry */
|
---|
415 | RTPrintf("VMM: testing hardware bp at VMMGCEntry (hit)\n");
|
---|
416 | DBGFR3AddrFromFlat(pUVM, &Addr, RCPtrEP);
|
---|
417 | RTUINT iBp1;
|
---|
418 | rc = DBGFR3BpSetReg(pUVM, &Addr, 0, ~(uint64_t)0, X86_DR7_RW_EO, 1, &iBp1);
|
---|
419 | AssertReleaseRC(rc);
|
---|
420 | rc = vmmR3DoGCTest(pVM, VMMGC_DO_TESTCASE_NOP, 0);
|
---|
421 | if (rc != VINF_EM_DBG_HYPER_BREAKPOINT)
|
---|
422 | {
|
---|
423 | RTPrintf("VMM: DR1=VMMGCEntry test failed with rc=%Rrc! expected VINF_EM_RAW_BREAKPOINT_HYPER\n", rc);
|
---|
424 | return RT_FAILURE(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS;
|
---|
425 | }
|
---|
426 |
|
---|
427 | /* resume the breakpoint */
|
---|
428 | RTPrintf("VMM: resuming hyper after breakpoint\n");
|
---|
429 | CPUMSetHyperEFlags(pVCpu, CPUMGetHyperEFlags(pVCpu) | X86_EFL_RF);
|
---|
430 | rc = VMMR3ResumeHyper(pVM, pVCpu);
|
---|
431 | if (rc != VINF_SUCCESS)
|
---|
432 | {
|
---|
433 | RTPrintf("VMM: failed to resume on hyper breakpoint, rc=%Rrc = KNOWN BUG\n", rc); /** @todo fix VMMR3ResumeHyper */
|
---|
434 | return RT_FAILURE(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS;
|
---|
435 | }
|
---|
436 |
|
---|
437 | /* engage the breakpoint again and try single stepping. */
|
---|
438 | RTPrintf("VMM: testing hardware bp at VMMGCEntry + stepping\n");
|
---|
439 | rc = vmmR3DoGCTest(pVM, VMMGC_DO_TESTCASE_NOP, 0);
|
---|
440 | if (rc != VINF_EM_DBG_HYPER_BREAKPOINT)
|
---|
441 | {
|
---|
442 | RTPrintf("VMM: DR1=VMMGCEntry test failed with rc=%Rrc! expected VINF_EM_RAW_BREAKPOINT_HYPER\n", rc);
|
---|
443 | return RT_FAILURE(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS;
|
---|
444 | }
|
---|
445 |
|
---|
446 | RTGCUINTREG OldPc = CPUMGetHyperEIP(pVCpu);
|
---|
447 | RTPrintf("%RGr=>", OldPc);
|
---|
448 | unsigned i;
|
---|
449 | for (i = 0; i < 8; i++)
|
---|
450 | {
|
---|
451 | CPUMSetHyperEFlags(pVCpu, CPUMGetHyperEFlags(pVCpu) | X86_EFL_TF | X86_EFL_RF);
|
---|
452 | rc = VMMR3ResumeHyper(pVM, pVCpu);
|
---|
453 | if (rc != VINF_EM_DBG_HYPER_STEPPED)
|
---|
454 | {
|
---|
455 | RTPrintf("\nVMM: failed to step on hyper breakpoint, rc=%Rrc\n", rc);
|
---|
456 | return RT_FAILURE(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS;
|
---|
457 | }
|
---|
458 | RTGCUINTREG Pc = CPUMGetHyperEIP(pVCpu);
|
---|
459 | RTPrintf("%RGr=>", Pc);
|
---|
460 | if (Pc == OldPc)
|
---|
461 | {
|
---|
462 | RTPrintf("\nVMM: step failed, PC: %RGr -> %RGr\n", OldPc, Pc);
|
---|
463 | return VERR_GENERAL_FAILURE;
|
---|
464 | }
|
---|
465 | OldPc = Pc;
|
---|
466 | }
|
---|
467 | RTPrintf("ok\n");
|
---|
468 |
|
---|
469 | /* done, clear it */
|
---|
470 | if ( RT_FAILURE(DBGFR3BpClear(pUVM, iBp0))
|
---|
471 | || RT_FAILURE(DBGFR3BpClear(pUVM, iBp1)))
|
---|
472 | {
|
---|
473 | RTPrintf("VMM: Failed to clear breakpoints!\n");
|
---|
474 | return VERR_GENERAL_FAILURE;
|
---|
475 | }
|
---|
476 | rc = vmmR3DoGCTest(pVM, VMMGC_DO_TESTCASE_NOP, 0);
|
---|
477 | if (rc != VINF_SUCCESS)
|
---|
478 | {
|
---|
479 | RTPrintf("VMM: NOP failed, rc=%Rrc\n", rc);
|
---|
480 | return RT_FAILURE(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS;
|
---|
481 | }
|
---|
482 |
|
---|
483 | /*
|
---|
484 | * Interrupt masking. Failure may indiate NMI watchdog activity.
|
---|
485 | */
|
---|
486 | RTPrintf("VMM: interrupt masking...\n"); RTStrmFlush(g_pStdOut); RTThreadSleep(250);
|
---|
487 | for (i = 0; i < 10000; i++)
|
---|
488 | {
|
---|
489 | uint64_t StartTick = ASMReadTSC();
|
---|
490 | rc = vmmR3DoGCTest(pVM, VMMGC_DO_TESTCASE_INTERRUPT_MASKING, 0);
|
---|
491 | if (rc != VINF_SUCCESS)
|
---|
492 | {
|
---|
493 | RTPrintf("VMM: Interrupt masking failed: rc=%Rrc\n", rc);
|
---|
494 | return RT_FAILURE(rc) ? rc : VERR_IPE_UNEXPECTED_INFO_STATUS;
|
---|
495 | }
|
---|
496 | uint64_t Ticks = ASMReadTSC() - StartTick;
|
---|
497 | if (Ticks < (SUPGetCpuHzFromGip(g_pSUPGlobalInfoPage) / 10000))
|
---|
498 | RTPrintf("Warning: Ticks=%RU64 (< %RU64)\n", Ticks, SUPGetCpuHzFromGip(g_pSUPGlobalInfoPage) / 10000);
|
---|
499 | }
|
---|
500 |
|
---|
501 | /*
|
---|
502 | * Interrupt forwarding.
|
---|
503 | */
|
---|
504 | CPUMSetHyperState(pVCpu, pVM->vmm.s.pfnCallTrampolineRC, pVCpu->vmm.s.pbEMTStackBottomRC, 0, 0);
|
---|
505 | CPUMPushHyper(pVCpu, 0);
|
---|
506 | CPUMPushHyper(pVCpu, VMMGC_DO_TESTCASE_HYPER_INTERRUPT);
|
---|
507 | CPUMPushHyper(pVCpu, pVM->pVMRC);
|
---|
508 | CPUMPushHyper(pVCpu, 3 * sizeof(RTRCPTR)); /* stack frame size */
|
---|
509 | CPUMPushHyper(pVCpu, RCPtrEP); /* what to call */
|
---|
510 | Log(("trampoline=%x\n", pVM->vmm.s.pfnCallTrampolineRC));
|
---|
511 |
|
---|
512 | /*
|
---|
513 | * Switch and do da thing.
|
---|
514 | */
|
---|
515 | RTPrintf("VMM: interrupt forwarding...\n"); RTStrmFlush(g_pStdOut); RTThreadSleep(250);
|
---|
516 | i = 0;
|
---|
517 | uint64_t tsBegin = RTTimeNanoTS();
|
---|
518 | uint64_t TickStart = ASMReadTSC();
|
---|
519 | Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
|
---|
520 | do
|
---|
521 | {
|
---|
522 | rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
|
---|
523 | if (RT_LIKELY(rc == VINF_SUCCESS))
|
---|
524 | rc = pVCpu->vmm.s.iLastGZRc;
|
---|
525 | if (RT_FAILURE(rc))
|
---|
526 | {
|
---|
527 | Log(("VMM: GC returned fatal %Rra in iteration %d\n", rc, i));
|
---|
528 | VMMR3FatalDump(pVM, pVCpu, rc);
|
---|
529 | return rc;
|
---|
530 | }
|
---|
531 | i++;
|
---|
532 | if (!(i % 32))
|
---|
533 | Log(("VMM: iteration %d, esi=%08x edi=%08x ebx=%08x\n",
|
---|
534 | i, CPUMGetHyperESI(pVCpu), CPUMGetHyperEDI(pVCpu), CPUMGetHyperEBX(pVCpu)));
|
---|
535 | } while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
|
---|
536 | uint64_t TickEnd = ASMReadTSC();
|
---|
537 | uint64_t tsEnd = RTTimeNanoTS();
|
---|
538 |
|
---|
539 | uint64_t Elapsed = tsEnd - tsBegin;
|
---|
540 | uint64_t PerIteration = Elapsed / (uint64_t)i;
|
---|
541 | uint64_t cTicksElapsed = TickEnd - TickStart;
|
---|
542 | uint64_t cTicksPerIteration = cTicksElapsed / (uint64_t)i;
|
---|
543 |
|
---|
544 | RTPrintf("VMM: %8d interrupts in %11llu ns (%11llu ticks), %10llu ns/iteration (%11llu ticks)\n",
|
---|
545 | i, Elapsed, cTicksElapsed, PerIteration, cTicksPerIteration);
|
---|
546 | Log(("VMM: %8d interrupts in %11llu ns (%11llu ticks), %10llu ns/iteration (%11llu ticks)\n",
|
---|
547 | i, Elapsed, cTicksElapsed, PerIteration, cTicksPerIteration));
|
---|
548 |
|
---|
549 | /*
|
---|
550 | * These forced actions are not necessary for the test and trigger breakpoints too.
|
---|
551 | */
|
---|
552 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_TRPM_SYNC_IDT);
|
---|
553 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_SELM_SYNC_TSS);
|
---|
554 |
|
---|
555 | /*
|
---|
556 | * Profile switching.
|
---|
557 | */
|
---|
558 | RTPrintf("VMM: profiling switcher...\n");
|
---|
559 | Log(("VMM: profiling switcher...\n"));
|
---|
560 | uint64_t TickMin = ~0;
|
---|
561 | tsBegin = RTTimeNanoTS();
|
---|
562 | TickStart = ASMReadTSC();
|
---|
563 | Assert(CPUMGetHyperCR3(pVCpu) && CPUMGetHyperCR3(pVCpu) == PGMGetHyperCR3(pVCpu));
|
---|
564 | for (i = 0; i < 1000000; i++)
|
---|
565 | {
|
---|
566 | CPUMSetHyperState(pVCpu, pVM->vmm.s.pfnCallTrampolineRC, pVCpu->vmm.s.pbEMTStackBottomRC, 0, 0);
|
---|
567 | CPUMPushHyper(pVCpu, 0);
|
---|
568 | CPUMPushHyper(pVCpu, VMMGC_DO_TESTCASE_NOP);
|
---|
569 | CPUMPushHyper(pVCpu, pVM->pVMRC);
|
---|
570 | CPUMPushHyper(pVCpu, 3 * sizeof(RTRCPTR)); /* stack frame size */
|
---|
571 | CPUMPushHyper(pVCpu, RCPtrEP); /* what to call */
|
---|
572 |
|
---|
573 | uint64_t TickThisStart = ASMReadTSC();
|
---|
574 | rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN, 0);
|
---|
575 | if (RT_LIKELY(rc == VINF_SUCCESS))
|
---|
576 | rc = pVCpu->vmm.s.iLastGZRc;
|
---|
577 | uint64_t TickThisElapsed = ASMReadTSC() - TickThisStart;
|
---|
578 | if (RT_FAILURE(rc))
|
---|
579 | {
|
---|
580 | Log(("VMM: GC returned fatal %Rra in iteration %d\n", rc, i));
|
---|
581 | VMMR3FatalDump(pVM, pVCpu, rc);
|
---|
582 | return rc;
|
---|
583 | }
|
---|
584 | if (TickThisElapsed < TickMin)
|
---|
585 | TickMin = TickThisElapsed;
|
---|
586 | }
|
---|
587 | TickEnd = ASMReadTSC();
|
---|
588 | tsEnd = RTTimeNanoTS();
|
---|
589 |
|
---|
590 | Elapsed = tsEnd - tsBegin;
|
---|
591 | PerIteration = Elapsed / (uint64_t)i;
|
---|
592 | cTicksElapsed = TickEnd - TickStart;
|
---|
593 | cTicksPerIteration = cTicksElapsed / (uint64_t)i;
|
---|
594 |
|
---|
595 | RTPrintf("VMM: %8d cycles in %11llu ns (%11lld ticks), %10llu ns/iteration (%11lld ticks) Min %11lld ticks\n",
|
---|
596 | i, Elapsed, cTicksElapsed, PerIteration, cTicksPerIteration, TickMin);
|
---|
597 | Log(("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 |
|
---|
600 | rc = VINF_SUCCESS;
|
---|
601 |
|
---|
602 | #if 0 /* drop this for now as it causes trouble on AMDs (Opteron 2384 and possibly others). */
|
---|
603 | /*
|
---|
604 | * A quick MSR report.
|
---|
605 | */
|
---|
606 | vmmR3DoMsrQuickReport(pVM, NULL, true);
|
---|
607 | #endif
|
---|
608 | }
|
---|
609 | else
|
---|
610 | AssertMsgFailed(("Failed to resolved VMMGC.gc::VMMGCEntry(), rc=%Rrc\n", rc));
|
---|
611 | #endif
|
---|
612 | return rc;
|
---|
613 | }
|
---|
614 |
|
---|
615 | #define SYNC_SEL(pHyperCtx, reg) \
|
---|
616 | if (pHyperCtx->reg.Sel) \
|
---|
617 | { \
|
---|
618 | DBGFSELINFO selInfo; \
|
---|
619 | int rc2 = SELMR3GetShadowSelectorInfo(pVM, pHyperCtx->reg.Sel, &selInfo); \
|
---|
620 | AssertRC(rc2); \
|
---|
621 | \
|
---|
622 | pHyperCtx->reg.u64Base = selInfo.GCPtrBase; \
|
---|
623 | pHyperCtx->reg.u32Limit = selInfo.cbLimit; \
|
---|
624 | pHyperCtx->reg.Attr.n.u1Present = selInfo.u.Raw.Gen.u1Present; \
|
---|
625 | pHyperCtx->reg.Attr.n.u1DefBig = selInfo.u.Raw.Gen.u1DefBig; \
|
---|
626 | pHyperCtx->reg.Attr.n.u1Granularity = selInfo.u.Raw.Gen.u1Granularity; \
|
---|
627 | pHyperCtx->reg.Attr.n.u4Type = selInfo.u.Raw.Gen.u4Type; \
|
---|
628 | pHyperCtx->reg.Attr.n.u2Dpl = selInfo.u.Raw.Gen.u2Dpl; \
|
---|
629 | pHyperCtx->reg.Attr.n.u1DescType = selInfo.u.Raw.Gen.u1DescType; \
|
---|
630 | pHyperCtx->reg.Attr.n.u1Long = selInfo.u.Raw.Gen.u1Long; \
|
---|
631 | }
|
---|
632 |
|
---|
633 | /* execute the switch. */
|
---|
634 | VMMR3DECL(int) VMMDoHmTest(PVM pVM)
|
---|
635 | {
|
---|
636 | uint32_t i;
|
---|
637 | int rc;
|
---|
638 | PCPUMCTX pHyperCtx, pGuestCtx;
|
---|
639 | RTGCPHYS CR3Phys = 0x0; /* fake address */
|
---|
640 | PVMCPU pVCpu = &pVM->aCpus[0];
|
---|
641 |
|
---|
642 | if (!HMIsEnabled(pVM))
|
---|
643 | {
|
---|
644 | RTPrintf("VMM: Hardware accelerated test not available!\n");
|
---|
645 | return VERR_ACCESS_DENIED;
|
---|
646 | }
|
---|
647 |
|
---|
648 | #ifdef VBOX_WITH_RAW_MODE
|
---|
649 | /*
|
---|
650 | * These forced actions are not necessary for the test and trigger breakpoints too.
|
---|
651 | */
|
---|
652 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_TRPM_SYNC_IDT);
|
---|
653 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_SELM_SYNC_TSS);
|
---|
654 | #endif
|
---|
655 |
|
---|
656 | /* Enable mapping of the hypervisor into the shadow page table. */
|
---|
657 | uint32_t cb;
|
---|
658 | rc = PGMR3MappingsSize(pVM, &cb);
|
---|
659 | AssertRCReturn(rc, rc);
|
---|
660 |
|
---|
661 | /* Pretend the mappings are now fixed; to force a refresh of the reserved PDEs. */
|
---|
662 | rc = PGMR3MappingsFix(pVM, MM_HYPER_AREA_ADDRESS, cb);
|
---|
663 | AssertRCReturn(rc, rc);
|
---|
664 |
|
---|
665 | pHyperCtx = CPUMGetHyperCtxPtr(pVCpu);
|
---|
666 |
|
---|
667 | pHyperCtx->cr0 = X86_CR0_PE | X86_CR0_WP | X86_CR0_PG | X86_CR0_TS | X86_CR0_ET | X86_CR0_NE | X86_CR0_MP;
|
---|
668 | pHyperCtx->cr4 = X86_CR4_PGE | X86_CR4_OSFXSR | X86_CR4_OSXMMEEXCPT;
|
---|
669 | PGMChangeMode(pVCpu, pHyperCtx->cr0, pHyperCtx->cr4, pHyperCtx->msrEFER);
|
---|
670 | PGMSyncCR3(pVCpu, pHyperCtx->cr0, CR3Phys, pHyperCtx->cr4, true);
|
---|
671 |
|
---|
672 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_TO_R3);
|
---|
673 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_TIMER);
|
---|
674 | VM_FF_CLEAR(pVM, VM_FF_TM_VIRTUAL_SYNC);
|
---|
675 | VM_FF_CLEAR(pVM, VM_FF_REQUEST);
|
---|
676 |
|
---|
677 | /*
|
---|
678 | * Setup stack for calling VMMGCEntry().
|
---|
679 | */
|
---|
680 | RTRCPTR RCPtrEP;
|
---|
681 | rc = PDMR3LdrGetSymbolRC(pVM, VMMRC_MAIN_MODULE_NAME, "VMMGCEntry", &RCPtrEP);
|
---|
682 | if (RT_SUCCESS(rc))
|
---|
683 | {
|
---|
684 | RTPrintf("VMM: VMMGCEntry=%RRv\n", RCPtrEP);
|
---|
685 |
|
---|
686 | pHyperCtx = CPUMGetHyperCtxPtr(pVCpu);
|
---|
687 |
|
---|
688 | /* Fill in hidden selector registers for the hypervisor state. */
|
---|
689 | SYNC_SEL(pHyperCtx, cs);
|
---|
690 | SYNC_SEL(pHyperCtx, ds);
|
---|
691 | SYNC_SEL(pHyperCtx, es);
|
---|
692 | SYNC_SEL(pHyperCtx, fs);
|
---|
693 | SYNC_SEL(pHyperCtx, gs);
|
---|
694 | SYNC_SEL(pHyperCtx, ss);
|
---|
695 | SYNC_SEL(pHyperCtx, tr);
|
---|
696 |
|
---|
697 | /*
|
---|
698 | * Profile switching.
|
---|
699 | */
|
---|
700 | RTPrintf("VMM: profiling switcher...\n");
|
---|
701 | Log(("VMM: profiling switcher...\n"));
|
---|
702 | uint64_t TickMin = ~0;
|
---|
703 | uint64_t tsBegin = RTTimeNanoTS();
|
---|
704 | uint64_t TickStart = ASMReadTSC();
|
---|
705 | for (i = 0; i < 1000000; i++)
|
---|
706 | {
|
---|
707 | CPUMSetHyperState(pVCpu, pVM->vmm.s.pfnCallTrampolineRC, pVCpu->vmm.s.pbEMTStackBottomRC, 0, 0);
|
---|
708 | CPUMPushHyper(pVCpu, 0);
|
---|
709 | CPUMPushHyper(pVCpu, VMMGC_DO_TESTCASE_HM_NOP);
|
---|
710 | CPUMPushHyper(pVCpu, pVM->pVMRC);
|
---|
711 | CPUMPushHyper(pVCpu, 3 * sizeof(RTRCPTR)); /* stack frame size */
|
---|
712 | CPUMPushHyper(pVCpu, RCPtrEP); /* what to call */
|
---|
713 |
|
---|
714 | pHyperCtx = CPUMGetHyperCtxPtr(pVCpu);
|
---|
715 | pGuestCtx = CPUMQueryGuestCtxPtr(pVCpu);
|
---|
716 |
|
---|
717 | /* Copy the hypervisor context to make sure we have a valid guest context. */
|
---|
718 | *pGuestCtx = *pHyperCtx;
|
---|
719 | pGuestCtx->cr3 = CR3Phys;
|
---|
720 |
|
---|
721 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_TO_R3);
|
---|
722 | VMCPU_FF_CLEAR(pVCpu, VMCPU_FF_TIMER);
|
---|
723 | VM_FF_CLEAR(pVM, VM_FF_TM_VIRTUAL_SYNC);
|
---|
724 |
|
---|
725 | uint64_t TickThisStart = ASMReadTSC();
|
---|
726 | rc = SUPR3CallVMMR0Fast(pVM->pVMR0, VMMR0_DO_HM_RUN, 0);
|
---|
727 | uint64_t TickThisElapsed = ASMReadTSC() - TickThisStart;
|
---|
728 | if (RT_FAILURE(rc))
|
---|
729 | {
|
---|
730 | Log(("VMM: R0 returned fatal %Rrc in iteration %d\n", rc, i));
|
---|
731 | VMMR3FatalDump(pVM, pVCpu, rc);
|
---|
732 | return rc;
|
---|
733 | }
|
---|
734 | if (TickThisElapsed < TickMin)
|
---|
735 | TickMin = TickThisElapsed;
|
---|
736 | }
|
---|
737 | uint64_t TickEnd = ASMReadTSC();
|
---|
738 | uint64_t tsEnd = RTTimeNanoTS();
|
---|
739 |
|
---|
740 | uint64_t Elapsed = tsEnd - tsBegin;
|
---|
741 | uint64_t PerIteration = Elapsed / (uint64_t)i;
|
---|
742 | uint64_t cTicksElapsed = TickEnd - TickStart;
|
---|
743 | uint64_t cTicksPerIteration = cTicksElapsed / (uint64_t)i;
|
---|
744 |
|
---|
745 | RTPrintf("VMM: %8d cycles in %11llu ns (%11lld ticks), %10llu ns/iteration (%11lld ticks) Min %11lld ticks\n",
|
---|
746 | i, Elapsed, cTicksElapsed, PerIteration, cTicksPerIteration, TickMin);
|
---|
747 | Log(("VMM: %8d cycles in %11llu ns (%11lld ticks), %10llu ns/iteration (%11lld ticks) Min %11lld ticks\n",
|
---|
748 | i, Elapsed, cTicksElapsed, PerIteration, cTicksPerIteration, TickMin));
|
---|
749 |
|
---|
750 | rc = VINF_SUCCESS;
|
---|
751 | }
|
---|
752 | else
|
---|
753 | AssertMsgFailed(("Failed to resolved VMMGC.gc::VMMGCEntry(), rc=%Rrc\n", rc));
|
---|
754 |
|
---|
755 | return rc;
|
---|
756 | }
|
---|
757 |
|
---|
758 |
|
---|
759 | #ifdef VBOX_WITH_RAW_MODE
|
---|
760 |
|
---|
761 | /**
|
---|
762 | * Used by VMMDoBruteForceMsrs to dump the CPUID info of the host CPU as a
|
---|
763 | * prefix to the MSR report.
|
---|
764 | */
|
---|
765 | static DECLCALLBACK(void) vmmDoPrintfVToStream(PCDBGFINFOHLP pHlp, const char *pszFormat, va_list va)
|
---|
766 | {
|
---|
767 | PRTSTREAM pOutStrm = ((PRTSTREAM *)pHlp)[-1];
|
---|
768 | RTStrmPrintfV(pOutStrm, pszFormat, va);
|
---|
769 | }
|
---|
770 |
|
---|
771 | /**
|
---|
772 | * Used by VMMDoBruteForceMsrs to dump the CPUID info of the host CPU as a
|
---|
773 | * prefix to the MSR report.
|
---|
774 | */
|
---|
775 | static DECLCALLBACK(void) vmmDoPrintfToStream(PCDBGFINFOHLP pHlp, const char *pszFormat, ...)
|
---|
776 | {
|
---|
777 | va_list va;
|
---|
778 | va_start(va, pszFormat);
|
---|
779 | vmmDoPrintfVToStream(pHlp, pszFormat, va);
|
---|
780 | va_end(va);
|
---|
781 | }
|
---|
782 |
|
---|
783 | #endif
|
---|
784 |
|
---|
785 |
|
---|
786 | /**
|
---|
787 | * Uses raw-mode to query all possible MSRs on the real hardware.
|
---|
788 | *
|
---|
789 | * This generates a msr-report.txt file (appending, no overwriting) as well as
|
---|
790 | * writing the values and process to stdout.
|
---|
791 | *
|
---|
792 | * @returns VBox status code.
|
---|
793 | * @param pVM The VM handle.
|
---|
794 | */
|
---|
795 | VMMR3DECL(int) VMMDoBruteForceMsrs(PVM pVM)
|
---|
796 | {
|
---|
797 | #ifdef VBOX_WITH_RAW_MODE
|
---|
798 | PRTSTREAM pOutStrm;
|
---|
799 | int rc = RTStrmOpen("msr-report.txt", "a", &pOutStrm);
|
---|
800 | if (RT_SUCCESS(rc))
|
---|
801 | {
|
---|
802 | /* Header */
|
---|
803 | struct
|
---|
804 | {
|
---|
805 | PRTSTREAM pOutStrm;
|
---|
806 | DBGFINFOHLP Hlp;
|
---|
807 | } MyHlp = { pOutStrm, { vmmDoPrintfToStream, vmmDoPrintfVToStream } };
|
---|
808 | DBGFR3Info(pVM->pUVM, "cpuid", "verbose", &MyHlp.Hlp);
|
---|
809 | RTStrmPrintf(pOutStrm, "\n");
|
---|
810 |
|
---|
811 | uint32_t cMsrsFound = 0;
|
---|
812 | vmmR3ReportMsrRange(pVM, 0, _4G, pOutStrm, &cMsrsFound);
|
---|
813 |
|
---|
814 | RTStrmPrintf(pOutStrm, "Total %u (%#x) MSRs\n", cMsrsFound, cMsrsFound);
|
---|
815 | RTPrintf("Total %u (%#x) MSRs\n", cMsrsFound, cMsrsFound);
|
---|
816 |
|
---|
817 | RTStrmClose(pOutStrm);
|
---|
818 | }
|
---|
819 | return rc;
|
---|
820 | #else
|
---|
821 | return VERR_NOT_SUPPORTED;
|
---|
822 | #endif
|
---|
823 | }
|
---|
824 |
|
---|
825 |
|
---|
826 | /**
|
---|
827 | * Uses raw-mode to query all known MSRS on the real hardware.
|
---|
828 | *
|
---|
829 | * This generates a known-msr-report.txt file (appending, no overwriting) as
|
---|
830 | * well as writing the values and process to stdout.
|
---|
831 | *
|
---|
832 | * @returns VBox status code.
|
---|
833 | * @param pVM The VM handle.
|
---|
834 | */
|
---|
835 | VMMR3DECL(int) VMMDoKnownMsrs(PVM pVM)
|
---|
836 | {
|
---|
837 | #ifdef VBOX_WITH_RAW_MODE
|
---|
838 | PRTSTREAM pOutStrm;
|
---|
839 | int rc = RTStrmOpen("known-msr-report.txt", "a", &pOutStrm);
|
---|
840 | if (RT_SUCCESS(rc))
|
---|
841 | {
|
---|
842 | vmmR3DoMsrQuickReport(pVM, pOutStrm, false);
|
---|
843 | RTStrmClose(pOutStrm);
|
---|
844 | }
|
---|
845 | return rc;
|
---|
846 | #else
|
---|
847 | return VERR_NOT_SUPPORTED;
|
---|
848 | #endif
|
---|
849 | }
|
---|
850 |
|
---|
851 |
|
---|
852 | /**
|
---|
853 | * MSR experimentation.
|
---|
854 | *
|
---|
855 | * @returns VBox status code.
|
---|
856 | * @param pVM The VM handle.
|
---|
857 | */
|
---|
858 | VMMR3DECL(int) VMMDoMsrExperiments(PVM pVM)
|
---|
859 | {
|
---|
860 | #ifdef VBOX_WITH_RAW_MODE
|
---|
861 | /*
|
---|
862 | * Preps.
|
---|
863 | */
|
---|
864 | RTRCPTR RCPtrEP;
|
---|
865 | int rc = PDMR3LdrGetSymbolRC(pVM, VMMRC_MAIN_MODULE_NAME, "VMMRCTestTestWriteMsr", &RCPtrEP);
|
---|
866 | AssertMsgRCReturn(rc, ("Failed to resolved VMMRC.rc::VMMRCEntry(), rc=%Rrc\n", rc), rc);
|
---|
867 |
|
---|
868 | uint64_t *pauValues;
|
---|
869 | rc = MMHyperAlloc(pVM, 2 * sizeof(uint64_t), 0, MM_TAG_VMM, (void **)&pauValues);
|
---|
870 | AssertMsgRCReturn(rc, ("Error allocating %#x bytes off the hyper heap: %Rrc\n", 2 * sizeof(uint64_t), rc), rc);
|
---|
871 | RTRCPTR RCPtrValues = MMHyperR3ToRC(pVM, pauValues);
|
---|
872 |
|
---|
873 | /*
|
---|
874 | * Do the experiments.
|
---|
875 | */
|
---|
876 | uint32_t uMsr = 0x00000277;
|
---|
877 | uint64_t uValue = UINT64_C(0x0007010600070106);
|
---|
878 | #if 0
|
---|
879 | uValue &= ~(RT_BIT_64(17) | RT_BIT_64(16) | RT_BIT_64(15) | RT_BIT_64(14) | RT_BIT_64(13));
|
---|
880 | uValue |= RT_BIT_64(13);
|
---|
881 | rc = VMMR3CallRC(pVM, RCPtrEP, 6, pVM->pVMRC, uMsr, RT_LODWORD(uValue), RT_HIDWORD(uValue),
|
---|
882 | RCPtrValues, RCPtrValues + sizeof(uint64_t));
|
---|
883 | RTPrintf("uMsr=%#010x before=%#018llx written=%#018llx after=%#018llx rc=%Rrc\n",
|
---|
884 | uMsr, pauValues[0], uValue, pauValues[1], rc);
|
---|
885 | #elif 1
|
---|
886 | const uint64_t uOrgValue = uValue;
|
---|
887 | uint32_t cChanges = 0;
|
---|
888 | for (int iBit = 63; iBit >= 58; iBit--)
|
---|
889 | {
|
---|
890 | uValue = uOrgValue & ~RT_BIT_64(iBit);
|
---|
891 | rc = VMMR3CallRC(pVM, RCPtrEP, 6, pVM->pVMRC, uMsr, RT_LODWORD(uValue), RT_HIDWORD(uValue),
|
---|
892 | RCPtrValues, RCPtrValues + sizeof(uint64_t));
|
---|
893 | RTPrintf("uMsr=%#010x before=%#018llx written=%#018llx after=%#018llx rc=%Rrc\nclear bit=%u -> %s\n",
|
---|
894 | uMsr, pauValues[0], uValue, pauValues[1], rc, iBit,
|
---|
895 | (pauValues[0] ^ pauValues[1]) & RT_BIT_64(iBit) ? "changed" : "unchanged");
|
---|
896 | cChanges += RT_BOOL(pauValues[0] ^ pauValues[1]);
|
---|
897 |
|
---|
898 | uValue = uOrgValue | RT_BIT_64(iBit);
|
---|
899 | rc = VMMR3CallRC(pVM, RCPtrEP, 6, pVM->pVMRC, uMsr, RT_LODWORD(uValue), RT_HIDWORD(uValue),
|
---|
900 | RCPtrValues, RCPtrValues + sizeof(uint64_t));
|
---|
901 | RTPrintf("uMsr=%#010x before=%#018llx written=%#018llx after=%#018llx rc=%Rrc\nset bit=%u -> %s\n",
|
---|
902 | uMsr, pauValues[0], uValue, pauValues[1], rc, iBit,
|
---|
903 | (pauValues[0] ^ pauValues[1]) & RT_BIT_64(iBit) ? "changed" : "unchanged");
|
---|
904 | cChanges += RT_BOOL(pauValues[0] ^ pauValues[1]);
|
---|
905 | }
|
---|
906 | RTPrintf("%u change(s)\n", cChanges);
|
---|
907 | #else
|
---|
908 | uint64_t fWriteable = 0;
|
---|
909 | for (uint32_t i = 0; i <= 63; i++)
|
---|
910 | {
|
---|
911 | uValue = RT_BIT_64(i);
|
---|
912 | # if 0
|
---|
913 | if (uValue & (0x7))
|
---|
914 | continue;
|
---|
915 | # endif
|
---|
916 | rc = VMMR3CallRC(pVM, RCPtrEP, 6, pVM->pVMRC, uMsr, RT_LODWORD(uValue), RT_HIDWORD(uValue),
|
---|
917 | RCPtrValues, RCPtrValues + sizeof(uint64_t));
|
---|
918 | RTPrintf("uMsr=%#010x before=%#018llx written=%#018llx after=%#018llx rc=%Rrc\n",
|
---|
919 | uMsr, pauValues[0], uValue, pauValues[1], rc);
|
---|
920 | if (RT_SUCCESS(rc))
|
---|
921 | fWriteable |= RT_BIT_64(i);
|
---|
922 | }
|
---|
923 |
|
---|
924 | uValue = 0;
|
---|
925 | rc = VMMR3CallRC(pVM, RCPtrEP, 6, pVM->pVMRC, uMsr, RT_LODWORD(uValue), RT_HIDWORD(uValue),
|
---|
926 | RCPtrValues, RCPtrValues + sizeof(uint64_t));
|
---|
927 | RTPrintf("uMsr=%#010x before=%#018llx written=%#018llx after=%#018llx rc=%Rrc\n",
|
---|
928 | uMsr, pauValues[0], uValue, pauValues[1], rc);
|
---|
929 |
|
---|
930 | uValue = UINT64_MAX;
|
---|
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 = fWriteable;
|
---|
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 [fWriteable]\n",
|
---|
940 | uMsr, pauValues[0], uValue, pauValues[1], rc);
|
---|
941 |
|
---|
942 | #endif
|
---|
943 |
|
---|
944 | /*
|
---|
945 | * Cleanups.
|
---|
946 | */
|
---|
947 | MMHyperFree(pVM, pauValues);
|
---|
948 | return rc;
|
---|
949 | #else
|
---|
950 | return VERR_NOT_SUPPORTED;
|
---|
951 | #endif
|
---|
952 | }
|
---|
953 |
|
---|