VirtualBox

source: vbox/trunk/src/VBox/VMM/VMM.cpp@ 11043

Last change on this file since 11043 was 10720, checked in by vboxsync, 17 years ago

Fixed issue in fast (METHOD_NEITHER) ioctls.
Write the last error to pVM->vmm.s.iLastGCRc instead of writing it to a user buffer.
  • Property svn:eol-style set to native
  • Property svn:keywords set to Id
File size: 99.1 KB
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1/* $Id: VMM.cpp 10720 2008-07-17 12:06:56Z vboxsync $ */
2/** @file
3 * VMM - The Virtual Machine Monitor Core.
4 */
5
6/*
7 * Copyright (C) 2006-2007 Sun Microsystems, Inc.
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 * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18 * Clara, CA 95054 USA or visit http://www.sun.com if you need
19 * additional information or have any questions.
20 */
21
22//#define NO_SUPCALLR0VMM
23
24/** @page pg_vmm VMM - The Virtual Machine Monitor
25 *
26 * !Revise this! It's already incorrect!
27 *
28 * The Virtual Machine Monitor (VMM) is the core of the virtual machine. It
29 * manages the alternate reality; controlling the virtualization, managing
30 * resources, tracking CPU state, it's resources and so on...
31 *
32 * We will split the VMM into smaller entities:
33 *
34 * - Virtual Machine Core Monitor (VMCM), which purpose it is to
35 * provide ring and world switching, that including routing
36 * interrupts to the host OS and traps to the appropriate trap
37 * handlers. It will implement an external interface for
38 * managing trap handlers.
39 *
40 * - CPU Monitor (CM), tracking the state of the CPU (in the alternate
41 * reality) and implementing external interfaces to read and change
42 * the state.
43 *
44 * - Memory Monitor (MM), which purpose it is to virtualize physical
45 * pages, segment descriptor tables, interrupt descriptor tables, task
46 * segments, and keep track of all memory providing external interfaces
47 * to access content and map pages. (Internally splitt into smaller entities!)
48 *
49 * - IO Monitor (IOM), which virtualizes in and out I/O operations. It
50 * interacts with the MM to implement memory mapped I/O. External
51 * interfaces for adding and removing I/O ranges are implemented.
52 *
53 * - External Interrupt Monitor (EIM), which purpose it is to manage
54 * interrupts generated by virtual devices. This monitor provides
55 * an interfaces for raising interrupts which is accessible at any
56 * time and from all thread.
57 * <p>
58 * A subentity of the EIM is the vitual Programmable Interrupt
59 * Controller Device (VPICD), and perhaps a virtual I/O Advanced
60 * Programmable Interrupt Controller Device (VAPICD).
61 *
62 * - Direct Memory Access Monitor (DMAM), which purpose it is to support
63 * virtual device using the DMA controller. Interfaces must be as the
64 * EIM interfaces independent and threadable.
65 * <p>
66 * A subentity of the DMAM is a virtual DMA Controller Device (VDMACD).
67 *
68 *
69 * Entities working on a higher level:
70 *
71 * - Device Manager (DM), which is a support facility for virtualized
72 * hardware. This provides generic facilities for efficient device
73 * virtualization. It will manage device attaching and detaching
74 * conversing with EIM and IOM.
75 *
76 * - Debugger Facility (DBGF) provides the basic features for
77 * debugging the alternate reality execution.
78 *
79 *
80 *
81 * @section pg_vmm_s_use_cases Use Cases
82 *
83 * @subsection pg_vmm_s_use_case_boot Bootstrap
84 *
85 * - Basic Init:
86 * - Init SUPDRV.
87 *
88 * - Init Virtual Machine Instance:
89 * - Load settings.
90 * - Check resource requirements (memory, com, stuff).
91 *
92 * - Init Host Ring 3 part:
93 * - Init Core code.
94 * - Load Pluggable Components.
95 * - Init Pluggable Components.
96 *
97 * - Init Host Ring 0 part:
98 * - Load Core (core = core components like VMM, RMI, CA, and so on) code.
99 * - Init Core code.
100 * - Load Pluggable Component code.
101 * - Init Pluggable Component code.
102 *
103 * - Allocate first chunk of memory and pin it down. This block of memory
104 * will fit the following pieces:
105 * - Virtual Machine Instance data. (Config, CPU state, VMM state, ++)
106 * (This is available from everywhere (at different addresses though)).
107 * - VMM Guest Context code.
108 * - Pluggable devices Guest Context code.
109 * - Page tables (directory and everything) for the VMM Guest
110 *
111 * - Setup Guest (Ring 0) part:
112 * - Setup initial page tables (i.e. directory all the stuff).
113 * - Load Core Guest Context code.
114 * - Load Pluggable Devices Guest Context code.
115 *
116 *
117 */
118
119
120/*******************************************************************************
121* Header Files *
122*******************************************************************************/
123#define LOG_GROUP LOG_GROUP_VMM
124#include <VBox/vmm.h>
125#include <VBox/vmapi.h>
126#include <VBox/pgm.h>
127#include <VBox/cfgm.h>
128#include <VBox/pdmqueue.h>
129#include <VBox/pdmapi.h>
130#include <VBox/cpum.h>
131#include <VBox/mm.h>
132#include <VBox/iom.h>
133#include <VBox/trpm.h>
134#include <VBox/selm.h>
135#include <VBox/em.h>
136#include <VBox/sup.h>
137#include <VBox/dbgf.h>
138#include <VBox/csam.h>
139#include <VBox/patm.h>
140#include <VBox/rem.h>
141#include <VBox/ssm.h>
142#include <VBox/tm.h>
143#include "VMMInternal.h"
144#include "VMMSwitcher/VMMSwitcher.h"
145#include <VBox/vm.h>
146#include <VBox/err.h>
147#include <VBox/param.h>
148#include <VBox/version.h>
149#include <VBox/x86.h>
150#include <VBox/hwaccm.h>
151#include <iprt/assert.h>
152#include <iprt/alloc.h>
153#include <iprt/asm.h>
154#include <iprt/time.h>
155#include <iprt/stream.h>
156#include <iprt/string.h>
157#include <iprt/stdarg.h>
158#include <iprt/ctype.h>
159
160
161
162/** The saved state version. */
163#define VMM_SAVED_STATE_VERSION 3
164
165
166/*******************************************************************************
167* Internal Functions *
168*******************************************************************************/
169static DECLCALLBACK(int) vmmR3Save(PVM pVM, PSSMHANDLE pSSM);
170static DECLCALLBACK(int) vmmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version);
171static DECLCALLBACK(void) vmmR3YieldEMT(PVM pVM, PTMTIMER pTimer, void *pvUser);
172static int vmmR3ServiceCallHostRequest(PVM pVM);
173static DECLCALLBACK(void) vmmR3InfoFF(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs);
174
175
176/*******************************************************************************
177* Global Variables *
178*******************************************************************************/
179/** Array of switcher defininitions.
180 * The type and index shall match!
181 */
182static PVMMSWITCHERDEF s_apSwitchers[VMMSWITCHER_MAX] =
183{
184 NULL, /* invalid entry */
185#ifndef RT_ARCH_AMD64
186 &vmmR3Switcher32BitTo32Bit_Def,
187 &vmmR3Switcher32BitToPAE_Def,
188 NULL, //&vmmR3Switcher32BitToAMD64_Def,
189 &vmmR3SwitcherPAETo32Bit_Def,
190 &vmmR3SwitcherPAEToPAE_Def,
191 NULL, //&vmmR3SwitcherPAEToAMD64_Def,
192# ifdef VBOX_WITH_HYBIRD_32BIT_KERNEL
193 &vmmR3SwitcherAMD64ToPAE_Def,
194# else
195 NULL, //&vmmR3SwitcherAMD64ToPAE_Def,
196# endif
197 NULL //&vmmR3SwitcherAMD64ToAMD64_Def,
198#else
199 NULL, //&vmmR3Switcher32BitTo32Bit_Def,
200 NULL, //&vmmR3Switcher32BitToPAE_Def,
201 NULL, //&vmmR3Switcher32BitToAMD64_Def,
202 NULL, //&vmmR3SwitcherPAETo32Bit_Def,
203 NULL, //&vmmR3SwitcherPAEToPAE_Def,
204 NULL, //&vmmR3SwitcherPAEToAMD64_Def,
205 &vmmR3SwitcherAMD64ToPAE_Def,
206 NULL //&vmmR3SwitcherAMD64ToAMD64_Def,
207#endif
208};
209
210
211
212/**
213 * Initiates the core code.
214 *
215 * This is core per VM code which might need fixups and/or for ease of use
216 * are put on linear contiguous backing.
217 *
218 * @returns VBox status code.
219 * @param pVM Pointer to VM structure.
220 */
221static int vmmR3InitCoreCode(PVM pVM)
222{
223 /*
224 * Calc the size.
225 */
226 unsigned cbCoreCode = 0;
227 for (unsigned iSwitcher = 0; iSwitcher < ELEMENTS(s_apSwitchers); iSwitcher++)
228 {
229 pVM->vmm.s.aoffSwitchers[iSwitcher] = cbCoreCode;
230 PVMMSWITCHERDEF pSwitcher = s_apSwitchers[iSwitcher];
231 if (pSwitcher)
232 {
233 AssertRelease((unsigned)pSwitcher->enmType == iSwitcher);
234 cbCoreCode += RT_ALIGN_32(pSwitcher->cbCode + 1, 32);
235 }
236 }
237
238 /*
239 * Allocate continguous pages for switchers and deal with
240 * conflicts in the intermediate mapping of the code.
241 */
242 pVM->vmm.s.cbCoreCode = RT_ALIGN_32(cbCoreCode, PAGE_SIZE);
243 pVM->vmm.s.pvHCCoreCodeR3 = SUPContAlloc2(pVM->vmm.s.cbCoreCode >> PAGE_SHIFT, &pVM->vmm.s.pvHCCoreCodeR0, &pVM->vmm.s.HCPhysCoreCode);
244 int rc = VERR_NO_MEMORY;
245 if (pVM->vmm.s.pvHCCoreCodeR3)
246 {
247 rc = PGMR3MapIntermediate(pVM, pVM->vmm.s.pvHCCoreCodeR0, pVM->vmm.s.HCPhysCoreCode, cbCoreCode);
248 if (rc == VERR_PGM_INTERMEDIATE_PAGING_CONFLICT)
249 {
250 /* try more allocations. */
251 struct
252 {
253 RTR0PTR pvR0;
254 void *pvR3;
255 RTHCPHYS HCPhys;
256 RTUINT cb;
257 } aBadTries[128];
258 unsigned i = 0;
259 do
260 {
261 aBadTries[i].pvR3 = pVM->vmm.s.pvHCCoreCodeR3;
262 aBadTries[i].pvR0 = pVM->vmm.s.pvHCCoreCodeR0;
263 aBadTries[i].HCPhys = pVM->vmm.s.HCPhysCoreCode;
264 i++;
265 pVM->vmm.s.pvHCCoreCodeR0 = NIL_RTR0PTR;
266 pVM->vmm.s.HCPhysCoreCode = NIL_RTHCPHYS;
267 pVM->vmm.s.pvHCCoreCodeR3 = SUPContAlloc2(pVM->vmm.s.cbCoreCode >> PAGE_SHIFT, &pVM->vmm.s.pvHCCoreCodeR0, &pVM->vmm.s.HCPhysCoreCode);
268 if (!pVM->vmm.s.pvHCCoreCodeR3)
269 break;
270 rc = PGMR3MapIntermediate(pVM, pVM->vmm.s.pvHCCoreCodeR0, pVM->vmm.s.HCPhysCoreCode, cbCoreCode);
271 } while ( rc == VERR_PGM_INTERMEDIATE_PAGING_CONFLICT
272 && i < RT_ELEMENTS(aBadTries) - 1);
273
274 /* cleanup */
275 if (VBOX_FAILURE(rc))
276 {
277 aBadTries[i].pvR3 = pVM->vmm.s.pvHCCoreCodeR3;
278 aBadTries[i].pvR0 = pVM->vmm.s.pvHCCoreCodeR0;
279 aBadTries[i].HCPhys = pVM->vmm.s.HCPhysCoreCode;
280 aBadTries[i].cb = pVM->vmm.s.cbCoreCode;
281 i++;
282 LogRel(("Failed to allocated and map core code: rc=%Vrc\n", rc));
283 }
284 while (i-- > 0)
285 {
286 LogRel(("Core code alloc attempt #%d: pvR3=%p pvR0=%p HCPhys=%VHp\n",
287 i, aBadTries[i].pvR3, aBadTries[i].pvR0, aBadTries[i].HCPhys));
288 SUPContFree(aBadTries[i].pvR3, aBadTries[i].cb >> PAGE_SHIFT);
289 }
290 }
291 }
292 if (VBOX_SUCCESS(rc))
293 {
294 /*
295 * copy the code.
296 */
297 for (unsigned iSwitcher = 0; iSwitcher < ELEMENTS(s_apSwitchers); iSwitcher++)
298 {
299 PVMMSWITCHERDEF pSwitcher = s_apSwitchers[iSwitcher];
300 if (pSwitcher)
301 memcpy((uint8_t *)pVM->vmm.s.pvHCCoreCodeR3 + pVM->vmm.s.aoffSwitchers[iSwitcher],
302 pSwitcher->pvCode, pSwitcher->cbCode);
303 }
304
305 /*
306 * Map the code into the GC address space.
307 */
308 RTGCPTR GCPtr;
309 rc = MMR3HyperMapHCPhys(pVM, pVM->vmm.s.pvHCCoreCodeR3, pVM->vmm.s.HCPhysCoreCode, cbCoreCode, "Core Code", &GCPtr);
310 if (VBOX_SUCCESS(rc))
311 {
312 pVM->vmm.s.pvGCCoreCode = GCPtr;
313 MMR3HyperReserve(pVM, PAGE_SIZE, "fence", NULL);
314 LogRel(("CoreCode: R3=%VHv R0=%VHv GC=%VRv Phys=%VHp cb=%#x\n",
315 pVM->vmm.s.pvHCCoreCodeR3, pVM->vmm.s.pvHCCoreCodeR0, pVM->vmm.s.pvGCCoreCode, pVM->vmm.s.HCPhysCoreCode, pVM->vmm.s.cbCoreCode));
316
317 /*
318 * Finally, PGM probably have selected a switcher already but we need
319 * to do get the addresses so we'll reselect it.
320 * This may legally fail so, we're ignoring the rc.
321 */
322 VMMR3SelectSwitcher(pVM, pVM->vmm.s.enmSwitcher);
323 return rc;
324 }
325
326 /* shit */
327 AssertMsgFailed(("PGMR3Map(,%VRv, %VGp, %#x, 0) failed with rc=%Vrc\n", pVM->vmm.s.pvGCCoreCode, pVM->vmm.s.HCPhysCoreCode, cbCoreCode, rc));
328 SUPContFree(pVM->vmm.s.pvHCCoreCodeR3, pVM->vmm.s.cbCoreCode >> PAGE_SHIFT);
329 }
330 else
331 VMSetError(pVM, rc, RT_SRC_POS,
332 N_("Failed to allocate %d bytes of contiguous memory for the world switcher code"),
333 cbCoreCode);
334
335 pVM->vmm.s.pvHCCoreCodeR3 = NULL;
336 pVM->vmm.s.pvHCCoreCodeR0 = NIL_RTR0PTR;
337 pVM->vmm.s.pvGCCoreCode = 0;
338 return rc;
339}
340
341
342/**
343 * Initializes the VMM.
344 *
345 * @returns VBox status code.
346 * @param pVM The VM to operate on.
347 */
348VMMR3DECL(int) VMMR3Init(PVM pVM)
349{
350 LogFlow(("VMMR3Init\n"));
351
352 /*
353 * Assert alignment, sizes and order.
354 */
355 AssertMsg(pVM->vmm.s.offVM == 0, ("Already initialized!\n"));
356 AssertMsg(sizeof(pVM->vmm.padding) >= sizeof(pVM->vmm.s),
357 ("pVM->vmm.padding is too small! vmm.padding %d while vmm.s is %d\n",
358 sizeof(pVM->vmm.padding), sizeof(pVM->vmm.s)));
359
360 /*
361 * Init basic VM VMM members.
362 */
363 pVM->vmm.s.offVM = RT_OFFSETOF(VM, vmm);
364 int rc = CFGMR3QueryU32(CFGMR3GetRoot(pVM), "YieldEMTInterval", &pVM->vmm.s.cYieldEveryMillies);
365 if (rc == VERR_CFGM_VALUE_NOT_FOUND)
366 pVM->vmm.s.cYieldEveryMillies = 23; /* Value arrived at after experimenting with the grub boot prompt. */
367 //pVM->vmm.s.cYieldEveryMillies = 8; //debugging
368 else
369 AssertMsgRCReturn(rc, ("Configuration error. Failed to query \"YieldEMTInterval\", rc=%Vrc\n", rc), rc);
370
371 /* GC switchers are enabled by default. Turned off by HWACCM. */
372 pVM->vmm.s.fSwitcherDisabled = false;
373
374 /*
375 * Register the saved state data unit.
376 */
377 rc = SSMR3RegisterInternal(pVM, "vmm", 1, VMM_SAVED_STATE_VERSION, VMM_STACK_SIZE + sizeof(RTGCPTR),
378 NULL, vmmR3Save, NULL,
379 NULL, vmmR3Load, NULL);
380 if (VBOX_FAILURE(rc))
381 return rc;
382
383 /*
384 * Register the Ring-0 VM handle with the session for fast ioctl calls.
385 */
386 rc = SUPSetVMForFastIOCtl(pVM->pVMR0);
387 if (VBOX_FAILURE(rc))
388 return rc;
389
390 /*
391 * Init core code.
392 */
393 rc = vmmR3InitCoreCode(pVM);
394 if (VBOX_SUCCESS(rc))
395 {
396 /*
397 * Allocate & init VMM GC stack.
398 * The stack pages are also used by the VMM R0 when VMMR0CallHost is invoked.
399 * (The page protection is modifed during R3 init completion.)
400 */
401#ifdef VBOX_STRICT_VMM_STACK
402 rc = MMHyperAlloc(pVM, VMM_STACK_SIZE + PAGE_SIZE + PAGE_SIZE, PAGE_SIZE, MM_TAG_VMM, (void **)&pVM->vmm.s.pbHCStack);
403#else
404 rc = MMHyperAlloc(pVM, VMM_STACK_SIZE, PAGE_SIZE, MM_TAG_VMM, (void **)&pVM->vmm.s.pbHCStack);
405#endif
406 if (VBOX_SUCCESS(rc))
407 {
408 /* Set HC and GC stack pointers to top of stack. */
409 pVM->vmm.s.CallHostR0JmpBuf.pvSavedStack = (RTR0PTR)pVM->vmm.s.pbHCStack;
410 pVM->vmm.s.pbGCStack = MMHyperHC2GC(pVM, pVM->vmm.s.pbHCStack);
411 pVM->vmm.s.pbGCStackBottom = pVM->vmm.s.pbGCStack + VMM_STACK_SIZE;
412 AssertRelease(pVM->vmm.s.pbGCStack);
413
414 /* Set hypervisor eip. */
415 CPUMSetHyperESP(pVM, pVM->vmm.s.pbGCStack);
416
417 /*
418 * Allocate GC & R0 Logger instances (they are finalized in the relocator).
419 */
420#ifdef LOG_ENABLED
421 PRTLOGGER pLogger = RTLogDefaultInstance();
422 if (pLogger)
423 {
424 pVM->vmm.s.cbLoggerGC = RT_OFFSETOF(RTLOGGERRC, afGroups[pLogger->cGroups]);
425 rc = MMHyperAlloc(pVM, pVM->vmm.s.cbLoggerGC, 0, MM_TAG_VMM, (void **)&pVM->vmm.s.pLoggerHC);
426 if (VBOX_SUCCESS(rc))
427 {
428 pVM->vmm.s.pLoggerGC = MMHyperHC2GC(pVM, pVM->vmm.s.pLoggerHC);
429
430/*
431 * Ring-0 logging isn't 100% safe yet (thread id reuse / process exit cleanup), so
432 * you have to sign up here by adding your defined(DEBUG_<userid>) to the #if.
433 *
434 * If you want to log in non-debug modes, you'll have to remember to change SUPDRvShared.c
435 * to not stub all the log functions.
436 *
437 * You might also wish to enable the AssertMsg1/2 overrides in VMMR0.cpp when enabling this.
438 */
439# if defined(DEBUG_sandervl) || defined(DEBUG_frank)
440 rc = MMHyperAlloc(pVM, RT_OFFSETOF(VMMR0LOGGER, Logger.afGroups[pLogger->cGroups]),
441 0, MM_TAG_VMM, (void **)&pVM->vmm.s.pR0Logger);
442 if (VBOX_SUCCESS(rc))
443 {
444 pVM->vmm.s.pR0Logger->pVM = pVM->pVMR0;
445 //pVM->vmm.s.pR0Logger->fCreated = false;
446 pVM->vmm.s.pR0Logger->cbLogger = RT_OFFSETOF(RTLOGGER, afGroups[pLogger->cGroups]);
447 }
448# endif
449 }
450 }
451#endif /* LOG_ENABLED */
452
453#ifdef VBOX_WITH_GC_AND_R0_RELEASE_LOG
454 /*
455 * Allocate GC Release Logger instances (finalized in the relocator).
456 */
457 if (VBOX_SUCCESS(rc))
458 {
459 PRTLOGGER pRelLogger = RTLogRelDefaultInstance();
460 if (pRelLogger)
461 {
462 pVM->vmm.s.cbRelLoggerGC = RT_OFFSETOF(RTLOGGERRC, afGroups[pRelLogger->cGroups]);
463 rc = MMHyperAlloc(pVM, pVM->vmm.s.cbRelLoggerGC, 0, MM_TAG_VMM, (void **)&pVM->vmm.s.pRelLoggerHC);
464 if (VBOX_SUCCESS(rc))
465 pVM->vmm.s.pRelLoggerGC = MMHyperHC2GC(pVM, pVM->vmm.s.pRelLoggerHC);
466 }
467 }
468#endif /* VBOX_WITH_GC_AND_R0_RELEASE_LOG */
469
470#ifdef VBOX_WITH_NMI
471 /*
472 * Allocate mapping for the host APIC.
473 */
474 if (VBOX_SUCCESS(rc))
475 {
476 rc = MMR3HyperReserve(pVM, PAGE_SIZE, "Host APIC", &pVM->vmm.s.GCPtrApicBase);
477 AssertRC(rc);
478 }
479#endif
480 if (VBOX_SUCCESS(rc))
481 {
482 rc = RTCritSectInit(&pVM->vmm.s.CritSectVMLock);
483 if (VBOX_SUCCESS(rc))
484 {
485 /*
486 * Debug info.
487 */
488 DBGFR3InfoRegisterInternal(pVM, "ff", "Displays the current Forced actions Flags.", vmmR3InfoFF);
489
490 /*
491 * Statistics.
492 */
493 STAM_REG(pVM, &pVM->vmm.s.StatRunGC, STAMTYPE_COUNTER, "/VMM/RunGC", STAMUNIT_OCCURENCES, "Number of context switches.");
494 STAM_REG(pVM, &pVM->vmm.s.StatGCRetNormal, STAMTYPE_COUNTER, "/VMM/GCRet/Normal", STAMUNIT_OCCURENCES, "Number of VINF_SUCCESS returns.");
495 STAM_REG(pVM, &pVM->vmm.s.StatGCRetInterrupt, STAMTYPE_COUNTER, "/VMM/GCRet/Interrupt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT returns.");
496 STAM_REG(pVM, &pVM->vmm.s.StatGCRetInterruptHyper, STAMTYPE_COUNTER, "/VMM/GCRet/InterruptHyper", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT_HYPER returns.");
497 STAM_REG(pVM, &pVM->vmm.s.StatGCRetGuestTrap, STAMTYPE_COUNTER, "/VMM/GCRet/GuestTrap", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_GUEST_TRAP returns.");
498 STAM_REG(pVM, &pVM->vmm.s.StatGCRetRingSwitch, STAMTYPE_COUNTER, "/VMM/GCRet/RingSwitch", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_RING_SWITCH returns.");
499 STAM_REG(pVM, &pVM->vmm.s.StatGCRetRingSwitchInt, STAMTYPE_COUNTER, "/VMM/GCRet/RingSwitchInt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_RING_SWITCH_INT returns.");
500 STAM_REG(pVM, &pVM->vmm.s.StatGCRetExceptionPrivilege, STAMTYPE_COUNTER, "/VMM/GCRet/ExceptionPrivilege", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_EXCEPTION_PRIVILEGED returns.");
501 STAM_REG(pVM, &pVM->vmm.s.StatGCRetStaleSelector, STAMTYPE_COUNTER, "/VMM/GCRet/StaleSelector", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_STALE_SELECTOR returns.");
502 STAM_REG(pVM, &pVM->vmm.s.StatGCRetIRETTrap, STAMTYPE_COUNTER, "/VMM/GCRet/IRETTrap", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_IRET_TRAP returns.");
503 STAM_REG(pVM, &pVM->vmm.s.StatGCRetEmulate, STAMTYPE_COUNTER, "/VMM/GCRet/Emulate", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION returns.");
504 STAM_REG(pVM, &pVM->vmm.s.StatGCRetPatchEmulate, STAMTYPE_COUNTER, "/VMM/GCRet/PatchEmulate", STAMUNIT_OCCURENCES, "Number of VINF_PATCH_EMULATE_INSTR returns.");
505 STAM_REG(pVM, &pVM->vmm.s.StatGCRetIORead, STAMTYPE_COUNTER, "/VMM/GCRet/IORead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_IOPORT_READ returns.");
506 STAM_REG(pVM, &pVM->vmm.s.StatGCRetIOWrite, STAMTYPE_COUNTER, "/VMM/GCRet/IOWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_IOPORT_WRITE returns.");
507 STAM_REG(pVM, &pVM->vmm.s.StatGCRetMMIORead, STAMTYPE_COUNTER, "/VMM/GCRet/MMIORead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_READ returns.");
508 STAM_REG(pVM, &pVM->vmm.s.StatGCRetMMIOWrite, STAMTYPE_COUNTER, "/VMM/GCRet/MMIOWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_WRITE returns.");
509 STAM_REG(pVM, &pVM->vmm.s.StatGCRetMMIOReadWrite, STAMTYPE_COUNTER, "/VMM/GCRet/MMIOReadWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_READ_WRITE returns.");
510 STAM_REG(pVM, &pVM->vmm.s.StatGCRetMMIOPatchRead, STAMTYPE_COUNTER, "/VMM/GCRet/MMIOPatchRead", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_PATCH_READ returns.");
511 STAM_REG(pVM, &pVM->vmm.s.StatGCRetMMIOPatchWrite, STAMTYPE_COUNTER, "/VMM/GCRet/MMIOPatchWrite", STAMUNIT_OCCURENCES, "Number of VINF_IOM_HC_MMIO_PATCH_WRITE returns.");
512 STAM_REG(pVM, &pVM->vmm.s.StatGCRetLDTFault, STAMTYPE_COUNTER, "/VMM/GCRet/LDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_GDT_FAULT returns.");
513 STAM_REG(pVM, &pVM->vmm.s.StatGCRetGDTFault, STAMTYPE_COUNTER, "/VMM/GCRet/GDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_LDT_FAULT returns.");
514 STAM_REG(pVM, &pVM->vmm.s.StatGCRetIDTFault, STAMTYPE_COUNTER, "/VMM/GCRet/IDTFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_IDT_FAULT returns.");
515 STAM_REG(pVM, &pVM->vmm.s.StatGCRetTSSFault, STAMTYPE_COUNTER, "/VMM/GCRet/TSSFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_TSS_FAULT returns.");
516 STAM_REG(pVM, &pVM->vmm.s.StatGCRetPDFault, STAMTYPE_COUNTER, "/VMM/GCRet/PDFault", STAMUNIT_OCCURENCES, "Number of VINF_EM_EXECUTE_INSTRUCTION_PD_FAULT returns.");
517 STAM_REG(pVM, &pVM->vmm.s.StatGCRetCSAMTask, STAMTYPE_COUNTER, "/VMM/GCRet/CSAMTask", STAMUNIT_OCCURENCES, "Number of VINF_CSAM_PENDING_ACTION returns.");
518 STAM_REG(pVM, &pVM->vmm.s.StatGCRetSyncCR3, STAMTYPE_COUNTER, "/VMM/GCRet/SyncCR", STAMUNIT_OCCURENCES, "Number of VINF_PGM_SYNC_CR3 returns.");
519 STAM_REG(pVM, &pVM->vmm.s.StatGCRetMisc, STAMTYPE_COUNTER, "/VMM/GCRet/Misc", STAMUNIT_OCCURENCES, "Number of misc returns.");
520 STAM_REG(pVM, &pVM->vmm.s.StatGCRetPatchInt3, STAMTYPE_COUNTER, "/VMM/GCRet/PatchInt3", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_INT3 returns.");
521 STAM_REG(pVM, &pVM->vmm.s.StatGCRetPatchPF, STAMTYPE_COUNTER, "/VMM/GCRet/PatchPF", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_TRAP_PF returns.");
522 STAM_REG(pVM, &pVM->vmm.s.StatGCRetPatchGP, STAMTYPE_COUNTER, "/VMM/GCRet/PatchGP", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PATCH_TRAP_GP returns.");
523 STAM_REG(pVM, &pVM->vmm.s.StatGCRetPatchIretIRQ, STAMTYPE_COUNTER, "/VMM/GCRet/PatchIret", STAMUNIT_OCCURENCES, "Number of VINF_PATM_PENDING_IRQ_AFTER_IRET returns.");
524 STAM_REG(pVM, &pVM->vmm.s.StatGCRetPageOverflow, STAMTYPE_COUNTER, "/VMM/GCRet/InvlpgOverflow", STAMUNIT_OCCURENCES, "Number of VERR_REM_FLUSHED_PAGES_OVERFLOW returns.");
525 STAM_REG(pVM, &pVM->vmm.s.StatGCRetRescheduleREM, STAMTYPE_COUNTER, "/VMM/GCRet/ScheduleREM", STAMUNIT_OCCURENCES, "Number of VINF_EM_RESCHEDULE_REM returns.");
526 STAM_REG(pVM, &pVM->vmm.s.StatGCRetToR3, STAMTYPE_COUNTER, "/VMM/GCRet/ToR3", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TO_R3 returns.");
527 STAM_REG(pVM, &pVM->vmm.s.StatGCRetTimerPending, STAMTYPE_COUNTER, "/VMM/GCRet/TimerPending", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_TIMER_PENDING returns.");
528 STAM_REG(pVM, &pVM->vmm.s.StatGCRetInterruptPending, STAMTYPE_COUNTER, "/VMM/GCRet/InterruptPending", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_INTERRUPT_PENDING returns.");
529 STAM_REG(pVM, &pVM->vmm.s.StatGCRetCallHost, STAMTYPE_COUNTER, "/VMM/GCRet/CallHost/Misc", STAMUNIT_OCCURENCES, "Number of VINF_VMM_CALL_HOST returns.");
530 STAM_REG(pVM, &pVM->vmm.s.StatGCRetPGMGrowRAM, STAMTYPE_COUNTER, "/VMM/GCRet/CallHost/GrowRAM", STAMUNIT_OCCURENCES, "Number of VINF_VMM_CALL_HOST returns.");
531 STAM_REG(pVM, &pVM->vmm.s.StatGCRetPDMLock, STAMTYPE_COUNTER, "/VMM/GCRet/CallHost/PDMLock", STAMUNIT_OCCURENCES, "Number of VINF_VMM_CALL_HOST returns.");
532 STAM_REG(pVM, &pVM->vmm.s.StatGCRetLogFlush, STAMTYPE_COUNTER, "/VMM/GCRet/CallHost/LogFlush", STAMUNIT_OCCURENCES, "Number of VINF_VMM_CALL_HOST returns.");
533 STAM_REG(pVM, &pVM->vmm.s.StatGCRetPDMQueueFlush, STAMTYPE_COUNTER, "/VMM/GCRet/CallHost/QueueFlush", STAMUNIT_OCCURENCES, "Number of VINF_VMM_CALL_HOST returns.");
534 STAM_REG(pVM, &pVM->vmm.s.StatGCRetPGMPoolGrow, STAMTYPE_COUNTER, "/VMM/GCRet/CallHost/PGMPoolGrow",STAMUNIT_OCCURENCES, "Number of VINF_VMM_CALL_HOST returns.");
535 STAM_REG(pVM, &pVM->vmm.s.StatGCRetRemReplay, STAMTYPE_COUNTER, "/VMM/GCRet/CallHost/REMReplay", STAMUNIT_OCCURENCES, "Number of VINF_VMM_CALL_HOST returns.");
536 STAM_REG(pVM, &pVM->vmm.s.StatGCRetVMSetError, STAMTYPE_COUNTER, "/VMM/GCRet/CallHost/VMSetError", STAMUNIT_OCCURENCES, "Number of VINF_VMM_CALL_HOST returns.");
537 STAM_REG(pVM, &pVM->vmm.s.StatGCRetPGMLock, STAMTYPE_COUNTER, "/VMM/GCRet/CallHost/PGMLock", STAMUNIT_OCCURENCES, "Number of VINF_VMM_CALL_HOST returns.");
538 STAM_REG(pVM, &pVM->vmm.s.StatGCRetHyperAssertion, STAMTYPE_COUNTER, "/VMM/GCRet/CallHost/HyperAssert", STAMUNIT_OCCURENCES, "Number of VINF_VMM_CALL_HOST returns.");
539 STAM_REG(pVM, &pVM->vmm.s.StatGCRetPATMDuplicateFn, STAMTYPE_COUNTER, "/VMM/GCRet/PATMDuplicateFn", STAMUNIT_OCCURENCES, "Number of VINF_PATM_DUPLICATE_FUNCTION returns.");
540 STAM_REG(pVM, &pVM->vmm.s.StatGCRetPGMChangeMode, STAMTYPE_COUNTER, "/VMM/GCRet/PGMChangeMode", STAMUNIT_OCCURENCES, "Number of VINF_PGM_CHANGE_MODE returns.");
541 STAM_REG(pVM, &pVM->vmm.s.StatGCRetEmulHlt, STAMTYPE_COUNTER, "/VMM/GCRet/EmulHlt", STAMUNIT_OCCURENCES, "Number of VINF_EM_RAW_EMULATE_INSTR_HLT returns.");
542 STAM_REG(pVM, &pVM->vmm.s.StatGCRetPendingRequest, STAMTYPE_COUNTER, "/VMM/GCRet/PendingRequest", STAMUNIT_OCCURENCES, "Number of VINF_EM_PENDING_REQUEST returns.");
543
544 return VINF_SUCCESS;
545 }
546 AssertRC(rc);
547 }
548 }
549 /** @todo: Need failure cleanup. */
550
551 //more todo in here?
552 //if (VBOX_SUCCESS(rc))
553 //{
554 //}
555 //int rc2 = vmmR3TermCoreCode(pVM);
556 //AssertRC(rc2));
557 }
558
559 return rc;
560}
561
562
563/**
564 * Ring-3 init finalizing.
565 *
566 * @returns VBox status code.
567 * @param pVM The VM handle.
568 */
569VMMR3DECL(int) VMMR3InitFinalize(PVM pVM)
570{
571#ifdef VBOX_STRICT_VMM_STACK
572 /*
573 * Two inaccessible pages at each sides of the stack to catch over/under-flows.
574 */
575 memset(pVM->vmm.s.pbHCStack - PAGE_SIZE, 0xcc, PAGE_SIZE);
576 PGMMapSetPage(pVM, MMHyperHC2GC(pVM, pVM->vmm.s.pbHCStack - PAGE_SIZE), PAGE_SIZE, 0);
577 RTMemProtect(pVM->vmm.s.pbHCStack - PAGE_SIZE, PAGE_SIZE, RTMEM_PROT_NONE);
578
579 memset(pVM->vmm.s.pbHCStack + VMM_STACK_SIZE, 0xcc, PAGE_SIZE);
580 PGMMapSetPage(pVM, MMHyperHC2GC(pVM, pVM->vmm.s.pbHCStack + VMM_STACK_SIZE), PAGE_SIZE, 0);
581 RTMemProtect(pVM->vmm.s.pbHCStack + VMM_STACK_SIZE, PAGE_SIZE, RTMEM_PROT_NONE);
582#endif
583
584 /*
585 * Set page attributes to r/w for stack pages.
586 */
587 int rc = PGMMapSetPage(pVM, pVM->vmm.s.pbGCStack, VMM_STACK_SIZE, X86_PTE_P | X86_PTE_A | X86_PTE_D | X86_PTE_RW);
588 AssertRC(rc);
589 if (VBOX_SUCCESS(rc))
590 {
591 /*
592 * Create the EMT yield timer.
593 */
594 rc = TMR3TimerCreateInternal(pVM, TMCLOCK_REAL, vmmR3YieldEMT, NULL, "EMT Yielder", &pVM->vmm.s.pYieldTimer);
595 if (VBOX_SUCCESS(rc))
596 rc = TMTimerSetMillies(pVM->vmm.s.pYieldTimer, pVM->vmm.s.cYieldEveryMillies);
597 }
598#ifdef VBOX_WITH_NMI
599 /*
600 * Map the host APIC into GC - This may be host os specific!
601 */
602 if (VBOX_SUCCESS(rc))
603 rc = PGMMap(pVM, pVM->vmm.s.GCPtrApicBase, 0xfee00000, PAGE_SIZE,
604 X86_PTE_P | X86_PTE_RW | X86_PTE_PWT | X86_PTE_PCD | X86_PTE_A | X86_PTE_D);
605#endif
606 return rc;
607}
608
609
610/**
611 * Initializes the R0 VMM.
612 *
613 * @returns VBox status code.
614 * @param pVM The VM to operate on.
615 */
616VMMR3DECL(int) VMMR3InitR0(PVM pVM)
617{
618 int rc;
619
620 /*
621 * Initialize the ring-0 logger if we haven't done so yet.
622 */
623 if ( pVM->vmm.s.pR0Logger
624 && !pVM->vmm.s.pR0Logger->fCreated)
625 {
626 rc = VMMR3UpdateLoggers(pVM);
627 if (VBOX_FAILURE(rc))
628 return rc;
629 }
630
631 /*
632 * Call Ring-0 entry with init code.
633 */
634 for (;;)
635 {
636#ifdef NO_SUPCALLR0VMM
637 //rc = VERR_GENERAL_FAILURE;
638 rc = VINF_SUCCESS;
639#else
640 rc = SUPCallVMMR0Ex(pVM->pVMR0, VMMR0_DO_VMMR0_INIT, VMMGetSvnRev(), NULL);
641#endif
642 if ( pVM->vmm.s.pR0Logger
643 && pVM->vmm.s.pR0Logger->Logger.offScratch > 0)
644 RTLogFlushToLogger(&pVM->vmm.s.pR0Logger->Logger, NULL);
645 if (rc != VINF_VMM_CALL_HOST)
646 break;
647 rc = vmmR3ServiceCallHostRequest(pVM);
648 if (VBOX_FAILURE(rc) || (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
649 break;
650 /* Resume R0 */
651 }
652
653 if (VBOX_FAILURE(rc) || (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
654 {
655 LogRel(("R0 init failed, rc=%Vra\n", rc));
656 if (VBOX_SUCCESS(rc))
657 rc = VERR_INTERNAL_ERROR;
658 }
659 return rc;
660}
661
662
663/**
664 * Initializes the GC VMM.
665 *
666 * @returns VBox status code.
667 * @param pVM The VM to operate on.
668 */
669VMMR3DECL(int) VMMR3InitGC(PVM pVM)
670{
671 /* In VMX mode, there's no need to init GC. */
672 if (pVM->vmm.s.fSwitcherDisabled)
673 return VINF_SUCCESS;
674
675 /*
676 * Call VMMGCInit():
677 * -# resolve the address.
678 * -# setup stackframe and EIP to use the trampoline.
679 * -# do a generic hypervisor call.
680 */
681 RTGCPTR32 GCPtrEP;
682 int rc = PDMR3GetSymbolGC(pVM, VMMGC_MAIN_MODULE_NAME, "VMMGCEntry", &GCPtrEP);
683 if (VBOX_SUCCESS(rc))
684 {
685 CPUMHyperSetCtxCore(pVM, NULL);
686 CPUMSetHyperESP(pVM, pVM->vmm.s.pbGCStackBottom); /* Clear the stack. */
687 uint64_t u64TS = RTTimeProgramStartNanoTS();
688#if GC_ARCH_BITS == 32
689 CPUMPushHyper(pVM, (uint32_t)(u64TS >> 32)); /* Param 3: The program startup TS - Hi. */
690 CPUMPushHyper(pVM, (uint32_t)u64TS); /* Param 3: The program startup TS - Lo. */
691#else /* 64-bit GC */
692 CPUMPushHyper(pVM, u64TS); /* Param 3: The program startup TS. */
693#endif
694 CPUMPushHyper(pVM, VMMGetSvnRev()); /* Param 2: Version argument. */
695 CPUMPushHyper(pVM, VMMGC_DO_VMMGC_INIT); /* Param 1: Operation. */
696 CPUMPushHyper(pVM, pVM->pVMGC); /* Param 0: pVM */
697 CPUMPushHyper(pVM, 3 * sizeof(RTGCPTR)); /* trampoline param: stacksize. */
698 CPUMPushHyper(pVM, GCPtrEP); /* Call EIP. */
699 CPUMSetHyperEIP(pVM, pVM->vmm.s.pfnGCCallTrampoline);
700
701 for (;;)
702 {
703#ifdef NO_SUPCALLR0VMM
704 //rc = VERR_GENERAL_FAILURE;
705 rc = VINF_SUCCESS;
706#else
707 rc = SUPCallVMMR0(pVM->pVMR0, VMMR0_DO_CALL_HYPERVISOR, NULL);
708#endif
709#ifdef LOG_ENABLED
710 PRTLOGGERRC pLogger = pVM->vmm.s.pLoggerHC;
711 if ( pLogger
712 && pLogger->offScratch > 0)
713 RTLogFlushGC(NULL, pLogger);
714#endif
715#ifdef VBOX_WITH_GC_AND_R0_RELEASE_LOG
716 PRTLOGGERRC pRelLogger = pVM->vmm.s.pRelLoggerHC;
717 if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
718 RTLogFlushGC(RTLogRelDefaultInstance(), pRelLogger);
719#endif
720 if (rc != VINF_VMM_CALL_HOST)
721 break;
722 rc = vmmR3ServiceCallHostRequest(pVM);
723 if (VBOX_FAILURE(rc) || (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
724 break;
725 }
726
727 if (VBOX_FAILURE(rc) || (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
728 {
729 VMMR3FatalDump(pVM, rc);
730 if (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST)
731 rc = VERR_INTERNAL_ERROR;
732 }
733 AssertRC(rc);
734 }
735 return rc;
736}
737
738
739/**
740 * Terminate the VMM bits.
741 *
742 * @returns VINF_SUCCESS.
743 * @param pVM The VM handle.
744 */
745VMMR3DECL(int) VMMR3Term(PVM pVM)
746{
747 /*
748 * Call Ring-0 entry with termination code.
749 */
750 int rc;
751 for (;;)
752 {
753#ifdef NO_SUPCALLR0VMM
754 //rc = VERR_GENERAL_FAILURE;
755 rc = VINF_SUCCESS;
756#else
757 rc = SUPCallVMMR0Ex(pVM->pVMR0, VMMR0_DO_VMMR0_TERM, 0, NULL);
758#endif
759 if ( pVM->vmm.s.pR0Logger
760 && pVM->vmm.s.pR0Logger->Logger.offScratch > 0)
761 RTLogFlushToLogger(&pVM->vmm.s.pR0Logger->Logger, NULL);
762 if (rc != VINF_VMM_CALL_HOST)
763 break;
764 rc = vmmR3ServiceCallHostRequest(pVM);
765 if (VBOX_FAILURE(rc) || (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
766 break;
767 /* Resume R0 */
768 }
769 if (VBOX_FAILURE(rc) || (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST))
770 {
771 LogRel(("VMMR3Term: R0 term failed, rc=%Vra. (warning)\n", rc));
772 if (VBOX_SUCCESS(rc))
773 rc = VERR_INTERNAL_ERROR;
774 }
775
776#ifdef VBOX_STRICT_VMM_STACK
777 /*
778 * Make the two stack guard pages present again.
779 */
780 RTMemProtect(pVM->vmm.s.pbHCStack - PAGE_SIZE, PAGE_SIZE, RTMEM_PROT_READ | RTMEM_PROT_WRITE);
781 RTMemProtect(pVM->vmm.s.pbHCStack + VMM_STACK_SIZE, PAGE_SIZE, RTMEM_PROT_READ | RTMEM_PROT_WRITE);
782#endif
783 return rc;
784}
785
786
787/**
788 * Applies relocations to data and code managed by this
789 * component. This function will be called at init and
790 * whenever the VMM need to relocate it self inside the GC.
791 *
792 * The VMM will need to apply relocations to the core code.
793 *
794 * @param pVM The VM handle.
795 * @param offDelta The relocation delta.
796 */
797VMMR3DECL(void) VMMR3Relocate(PVM pVM, RTGCINTPTR offDelta)
798{
799 LogFlow(("VMMR3Relocate: offDelta=%VGv\n", offDelta));
800
801 /*
802 * Recalc the GC address.
803 */
804 pVM->vmm.s.pvGCCoreCode = MMHyperHC2GC(pVM, pVM->vmm.s.pvHCCoreCodeR3);
805
806 /*
807 * The stack.
808 */
809 CPUMSetHyperESP(pVM, CPUMGetHyperESP(pVM) + offDelta);
810 pVM->vmm.s.pbGCStack = MMHyperHC2GC(pVM, pVM->vmm.s.pbHCStack);
811 pVM->vmm.s.pbGCStackBottom = pVM->vmm.s.pbGCStack + VMM_STACK_SIZE;
812
813 /*
814 * All the switchers.
815 */
816 for (unsigned iSwitcher = 0; iSwitcher < ELEMENTS(s_apSwitchers); iSwitcher++)
817 {
818 PVMMSWITCHERDEF pSwitcher = s_apSwitchers[iSwitcher];
819 if (pSwitcher && pSwitcher->pfnRelocate)
820 {
821 unsigned off = pVM->vmm.s.aoffSwitchers[iSwitcher];
822 pSwitcher->pfnRelocate(pVM,
823 pSwitcher,
824 (uint8_t *)pVM->vmm.s.pvHCCoreCodeR0 + off,
825 (uint8_t *)pVM->vmm.s.pvHCCoreCodeR3 + off,
826 pVM->vmm.s.pvGCCoreCode + off,
827 pVM->vmm.s.HCPhysCoreCode + off);
828 }
829 }
830
831 /*
832 * Recalc the GC address for the current switcher.
833 */
834 PVMMSWITCHERDEF pSwitcher = s_apSwitchers[pVM->vmm.s.enmSwitcher];
835 RTGCPTR GCPtr = pVM->vmm.s.pvGCCoreCode + pVM->vmm.s.aoffSwitchers[pVM->vmm.s.enmSwitcher];
836 pVM->vmm.s.pfnGCGuestToHost = GCPtr + pSwitcher->offGCGuestToHost;
837 pVM->vmm.s.pfnGCCallTrampoline = GCPtr + pSwitcher->offGCCallTrampoline;
838 pVM->pfnVMMGCGuestToHostAsm = GCPtr + pSwitcher->offGCGuestToHostAsm;
839 pVM->pfnVMMGCGuestToHostAsmHyperCtx = GCPtr + pSwitcher->offGCGuestToHostAsmHyperCtx;
840 pVM->pfnVMMGCGuestToHostAsmGuestCtx = GCPtr + pSwitcher->offGCGuestToHostAsmGuestCtx;
841
842 /*
843 * Get other GC entry points.
844 */
845 int rc = PDMR3GetSymbolGC(pVM, VMMGC_MAIN_MODULE_NAME, "CPUMGCResumeGuest", &pVM->vmm.s.pfnCPUMGCResumeGuest);
846 AssertReleaseMsgRC(rc, ("CPUMGCResumeGuest not found! rc=%Vra\n", rc));
847
848 rc = PDMR3GetSymbolGC(pVM, VMMGC_MAIN_MODULE_NAME, "CPUMGCResumeGuestV86", &pVM->vmm.s.pfnCPUMGCResumeGuestV86);
849 AssertReleaseMsgRC(rc, ("CPUMGCResumeGuestV86 not found! rc=%Vra\n", rc));
850
851 /*
852 * Update the logger.
853 */
854 VMMR3UpdateLoggers(pVM);
855}
856
857
858/**
859 * Updates the settings for the GC and R0 loggers.
860 *
861 * @returns VBox status code.
862 * @param pVM The VM handle.
863 */
864VMMR3DECL(int) VMMR3UpdateLoggers(PVM pVM)
865{
866 /*
867 * Simply clone the logger instance (for GC).
868 */
869 int rc = VINF_SUCCESS;
870 RTGCPTR32 GCPtrLoggerFlush = 0;
871
872 if (pVM->vmm.s.pLoggerHC
873#ifdef VBOX_WITH_GC_AND_R0_RELEASE_LOG
874 || pVM->vmm.s.pRelLoggerHC
875#endif
876 )
877 {
878 rc = PDMR3GetSymbolGC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCLoggerFlush", &GCPtrLoggerFlush);
879 AssertReleaseMsgRC(rc, ("vmmGCLoggerFlush not found! rc=%Vra\n", rc));
880 }
881
882 if (pVM->vmm.s.pLoggerHC)
883 {
884 RTGCPTR32 GCPtrLoggerWrapper = 0;
885 rc = PDMR3GetSymbolGC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCLoggerWrapper", &GCPtrLoggerWrapper);
886 AssertReleaseMsgRC(rc, ("vmmGCLoggerWrapper not found! rc=%Vra\n", rc));
887 pVM->vmm.s.pLoggerGC = MMHyperHC2GC(pVM, pVM->vmm.s.pLoggerHC);
888 rc = RTLogCloneRC(NULL /* default */, pVM->vmm.s.pLoggerHC, pVM->vmm.s.cbLoggerGC,
889 GCPtrLoggerWrapper, GCPtrLoggerFlush, RTLOGFLAGS_BUFFERED);
890 AssertReleaseMsgRC(rc, ("RTLogCloneGC failed! rc=%Vra\n", rc));
891 }
892
893#ifdef VBOX_WITH_GC_AND_R0_RELEASE_LOG
894 if (pVM->vmm.s.pRelLoggerHC)
895 {
896 RTGCPTR32 GCPtrLoggerWrapper = 0;
897 rc = PDMR3GetSymbolGC(pVM, VMMGC_MAIN_MODULE_NAME, "vmmGCRelLoggerWrapper", &GCPtrLoggerWrapper);
898 AssertReleaseMsgRC(rc, ("vmmGCRelLoggerWrapper not found! rc=%Vra\n", rc));
899 pVM->vmm.s.pRelLoggerGC = MMHyperHC2GC(pVM, pVM->vmm.s.pRelLoggerHC);
900 rc = RTLogCloneRC(RTLogRelDefaultInstance(), pVM->vmm.s.pRelLoggerHC, pVM->vmm.s.cbRelLoggerGC,
901 GCPtrLoggerWrapper, GCPtrLoggerFlush, RTLOGFLAGS_BUFFERED);
902 AssertReleaseMsgRC(rc, ("RTLogCloneGC failed! rc=%Vra\n", rc));
903 }
904#endif /* VBOX_WITH_GC_AND_R0_RELEASE_LOG */
905
906 /*
907 * For the ring-0 EMT logger, we use a per-thread logger
908 * instance in ring-0. Only initialize it once.
909 */
910 PVMMR0LOGGER pR0Logger = pVM->vmm.s.pR0Logger;
911 if (pR0Logger)
912 {
913 if (!pR0Logger->fCreated)
914 {
915 RTR0PTR pfnLoggerWrapper = NIL_RTR0PTR;
916 rc = PDMR3GetSymbolR0(pVM, VMMR0_MAIN_MODULE_NAME, "vmmR0LoggerWrapper", &pfnLoggerWrapper);
917 AssertReleaseMsgRCReturn(rc, ("VMMLoggerWrapper not found! rc=%Vra\n", rc), rc);
918
919 RTR0PTR pfnLoggerFlush = NIL_RTR0PTR;
920 rc = PDMR3GetSymbolR0(pVM, VMMR0_MAIN_MODULE_NAME, "vmmR0LoggerFlush", &pfnLoggerFlush);
921 AssertReleaseMsgRCReturn(rc, ("VMMLoggerFlush not found! rc=%Vra\n", rc), rc);
922
923 rc = RTLogCreateForR0(&pR0Logger->Logger, pR0Logger->cbLogger,
924 *(PFNRTLOGGER *)&pfnLoggerWrapper, *(PFNRTLOGFLUSH *)&pfnLoggerFlush,
925 RTLOGFLAGS_BUFFERED, RTLOGDEST_DUMMY);
926 AssertReleaseMsgRCReturn(rc, ("RTLogCloneGC failed! rc=%Vra\n", rc), rc);
927 pR0Logger->fCreated = true;
928 }
929
930 rc = RTLogCopyGroupsAndFlags(&pR0Logger->Logger, NULL /* default */, RTLOGFLAGS_BUFFERED, 0);
931 AssertRC(rc);
932 }
933
934 return rc;
935}
936
937
938/**
939 * Generic switch code relocator.
940 *
941 * @param pVM The VM handle.
942 * @param pSwitcher The switcher definition.
943 * @param pu8CodeR3 Pointer to the core code block for the switcher, ring-3 mapping.
944 * @param pu8CodeR0 Pointer to the core code block for the switcher, ring-0 mapping.
945 * @param GCPtrCode The guest context address corresponding to pu8Code.
946 * @param u32IDCode The identity mapped (ID) address corresponding to pu8Code.
947 * @param SelCS The hypervisor CS selector.
948 * @param SelDS The hypervisor DS selector.
949 * @param SelTSS The hypervisor TSS selector.
950 * @param GCPtrGDT The GC address of the hypervisor GDT.
951 * @param SelCS64 The 64-bit mode hypervisor CS selector.
952 */
953static void vmmR3SwitcherGenericRelocate(PVM pVM, PVMMSWITCHERDEF pSwitcher, uint8_t *pu8CodeR0, uint8_t *pu8CodeR3, RTGCPTR GCPtrCode, uint32_t u32IDCode,
954 RTSEL SelCS, RTSEL SelDS, RTSEL SelTSS, RTGCPTR GCPtrGDT, RTSEL SelCS64)
955{
956 union
957 {
958 const uint8_t *pu8;
959 const uint16_t *pu16;
960 const uint32_t *pu32;
961 const uint64_t *pu64;
962 const void *pv;
963 uintptr_t u;
964 } u;
965 u.pv = pSwitcher->pvFixups;
966
967 /*
968 * Process fixups.
969 */
970 uint8_t u8;
971 while ((u8 = *u.pu8++) != FIX_THE_END)
972 {
973 /*
974 * Get the source (where to write the fixup).
975 */
976 uint32_t offSrc = *u.pu32++;
977 Assert(offSrc < pSwitcher->cbCode);
978 union
979 {
980 uint8_t *pu8;
981 uint16_t *pu16;
982 uint32_t *pu32;
983 uint64_t *pu64;
984 uintptr_t u;
985 } uSrc;
986 uSrc.pu8 = pu8CodeR3 + offSrc;
987
988 /* The fixup target and method depends on the type. */
989 switch (u8)
990 {
991 /*
992 * 32-bit relative, source in HC and target in GC.
993 */
994 case FIX_HC_2_GC_NEAR_REL:
995 {
996 Assert(offSrc - pSwitcher->offHCCode0 < pSwitcher->cbHCCode0 || offSrc - pSwitcher->offHCCode1 < pSwitcher->cbHCCode1);
997 uint32_t offTrg = *u.pu32++;
998 Assert(offTrg - pSwitcher->offGCCode < pSwitcher->cbGCCode);
999 *uSrc.pu32 = (uint32_t)((GCPtrCode + offTrg) - (uSrc.u + 4));
1000 break;
1001 }
1002
1003 /*
1004 * 32-bit relative, source in HC and target in ID.
1005 */
1006 case FIX_HC_2_ID_NEAR_REL:
1007 {
1008 Assert(offSrc - pSwitcher->offHCCode0 < pSwitcher->cbHCCode0 || offSrc - pSwitcher->offHCCode1 < pSwitcher->cbHCCode1);
1009 uint32_t offTrg = *u.pu32++;
1010 Assert(offTrg - pSwitcher->offIDCode0 < pSwitcher->cbIDCode0 || offTrg - pSwitcher->offIDCode1 < pSwitcher->cbIDCode1);
1011 *uSrc.pu32 = (uint32_t)((u32IDCode + offTrg) - ((uintptr_t)pu8CodeR0 + offSrc + 4));
1012 break;
1013 }
1014
1015 /*
1016 * 32-bit relative, source in GC and target in HC.
1017 */
1018 case FIX_GC_2_HC_NEAR_REL:
1019 {
1020 Assert(offSrc - pSwitcher->offGCCode < pSwitcher->cbGCCode);
1021 uint32_t offTrg = *u.pu32++;
1022 Assert(offTrg - pSwitcher->offHCCode0 < pSwitcher->cbHCCode0 || offTrg - pSwitcher->offHCCode1 < pSwitcher->cbHCCode1);
1023 *uSrc.pu32 = (uint32_t)(((uintptr_t)pu8CodeR0 + offTrg) - (GCPtrCode + offSrc + 4));
1024 break;
1025 }
1026
1027 /*
1028 * 32-bit relative, source in GC and target in ID.
1029 */
1030 case FIX_GC_2_ID_NEAR_REL:
1031 {
1032 Assert(offSrc - pSwitcher->offGCCode < pSwitcher->cbGCCode);
1033 uint32_t offTrg = *u.pu32++;
1034 Assert(offTrg - pSwitcher->offIDCode0 < pSwitcher->cbIDCode0 || offTrg - pSwitcher->offIDCode1 < pSwitcher->cbIDCode1);
1035 *uSrc.pu32 = (uint32_t)((u32IDCode + offTrg) - (GCPtrCode + offSrc + 4));
1036 break;
1037 }
1038
1039 /*
1040 * 32-bit relative, source in ID and target in HC.
1041 */
1042 case FIX_ID_2_HC_NEAR_REL:
1043 {
1044 Assert(offSrc - pSwitcher->offIDCode0 < pSwitcher->cbIDCode0 || offSrc - pSwitcher->offIDCode1 < pSwitcher->cbIDCode1);
1045 uint32_t offTrg = *u.pu32++;
1046 Assert(offTrg - pSwitcher->offHCCode0 < pSwitcher->cbHCCode0 || offTrg - pSwitcher->offHCCode1 < pSwitcher->cbHCCode1);
1047 *uSrc.pu32 = (uint32_t)(((uintptr_t)pu8CodeR0 + offTrg) - (u32IDCode + offSrc + 4));
1048 break;
1049 }
1050
1051 /*
1052 * 32-bit relative, source in ID and target in HC.
1053 */
1054 case FIX_ID_2_GC_NEAR_REL:
1055 {
1056 Assert(offSrc - pSwitcher->offIDCode0 < pSwitcher->cbIDCode0 || offSrc - pSwitcher->offIDCode1 < pSwitcher->cbIDCode1);
1057 uint32_t offTrg = *u.pu32++;
1058 Assert(offTrg - pSwitcher->offGCCode < pSwitcher->cbGCCode);
1059 *uSrc.pu32 = (uint32_t)((GCPtrCode + offTrg) - (u32IDCode + offSrc + 4));
1060 break;
1061 }
1062
1063 /*
1064 * 16:32 far jump, target in GC.
1065 */
1066 case FIX_GC_FAR32:
1067 {
1068 uint32_t offTrg = *u.pu32++;
1069 Assert(offTrg - pSwitcher->offGCCode < pSwitcher->cbGCCode);
1070 *uSrc.pu32++ = (uint32_t)(GCPtrCode + offTrg);
1071 *uSrc.pu16++ = SelCS;
1072 break;
1073 }
1074
1075 /*
1076 * Make 32-bit GC pointer given CPUM offset.
1077 */
1078 case FIX_GC_CPUM_OFF:
1079 {
1080 uint32_t offCPUM = *u.pu32++;
1081 Assert(offCPUM < sizeof(pVM->cpum));
1082 *uSrc.pu32 = (uint32_t)(VM_GUEST_ADDR(pVM, &pVM->cpum) + offCPUM);
1083 break;
1084 }
1085
1086 /*
1087 * Make 32-bit GC pointer given VM offset.
1088 */
1089 case FIX_GC_VM_OFF:
1090 {
1091 uint32_t offVM = *u.pu32++;
1092 Assert(offVM < sizeof(VM));
1093 *uSrc.pu32 = (uint32_t)(VM_GUEST_ADDR(pVM, pVM) + offVM);
1094 break;
1095 }
1096
1097 /*
1098 * Make 32-bit HC pointer given CPUM offset.
1099 */
1100 case FIX_HC_CPUM_OFF:
1101 {
1102 uint32_t offCPUM = *u.pu32++;
1103 Assert(offCPUM < sizeof(pVM->cpum));
1104 *uSrc.pu32 = (uint32_t)pVM->pVMR0 + RT_OFFSETOF(VM, cpum) + offCPUM;
1105 break;
1106 }
1107
1108 /*
1109 * Make 32-bit R0 pointer given VM offset.
1110 */
1111 case FIX_HC_VM_OFF:
1112 {
1113 uint32_t offVM = *u.pu32++;
1114 Assert(offVM < sizeof(VM));
1115 *uSrc.pu32 = (uint32_t)pVM->pVMR0 + offVM;
1116 break;
1117 }
1118
1119 /*
1120 * Store the 32-Bit CR3 (32-bit) for the intermediate memory context.
1121 */
1122 case FIX_INTER_32BIT_CR3:
1123 {
1124
1125 *uSrc.pu32 = PGMGetInter32BitCR3(pVM);
1126 break;
1127 }
1128
1129 /*
1130 * Store the PAE CR3 (32-bit) for the intermediate memory context.
1131 */
1132 case FIX_INTER_PAE_CR3:
1133 {
1134
1135 *uSrc.pu32 = PGMGetInterPaeCR3(pVM);
1136 break;
1137 }
1138
1139 /*
1140 * Store the AMD64 CR3 (32-bit) for the intermediate memory context.
1141 */
1142 case FIX_INTER_AMD64_CR3:
1143 {
1144
1145 *uSrc.pu32 = PGMGetInterAmd64CR3(pVM);
1146 break;
1147 }
1148
1149 /*
1150 * Store the 32-Bit CR3 (32-bit) for the hypervisor (shadow) memory context.
1151 */
1152 case FIX_HYPER_32BIT_CR3:
1153 {
1154
1155 *uSrc.pu32 = PGMGetHyper32BitCR3(pVM);
1156 break;
1157 }
1158
1159 /*
1160 * Store the PAE CR3 (32-bit) for the hypervisor (shadow) memory context.
1161 */
1162 case FIX_HYPER_PAE_CR3:
1163 {
1164
1165 *uSrc.pu32 = PGMGetHyperPaeCR3(pVM);
1166 break;
1167 }
1168
1169 /*
1170 * Store the AMD64 CR3 (32-bit) for the hypervisor (shadow) memory context.
1171 */
1172 case FIX_HYPER_AMD64_CR3:
1173 {
1174
1175 *uSrc.pu32 = PGMGetHyperAmd64CR3(pVM);
1176 break;
1177 }
1178
1179 /*
1180 * Store Hypervisor CS (16-bit).
1181 */
1182 case FIX_HYPER_CS:
1183 {
1184 *uSrc.pu16 = SelCS;
1185 break;
1186 }
1187
1188 /*
1189 * Store Hypervisor DS (16-bit).
1190 */
1191 case FIX_HYPER_DS:
1192 {
1193 *uSrc.pu16 = SelDS;
1194 break;
1195 }
1196
1197 /*
1198 * Store Hypervisor TSS (16-bit).
1199 */
1200 case FIX_HYPER_TSS:
1201 {
1202 *uSrc.pu16 = SelTSS;
1203 break;
1204 }
1205
1206 /*
1207 * Store the 32-bit GC address of the 2nd dword of the TSS descriptor (in the GDT).
1208 */
1209 case FIX_GC_TSS_GDTE_DW2:
1210 {
1211 RTGCPTR GCPtr = GCPtrGDT + (SelTSS & ~7) + 4;
1212 *uSrc.pu32 = (uint32_t)GCPtr;
1213 break;
1214 }
1215
1216
1217 ///@todo case FIX_CR4_MASK:
1218 ///@todo case FIX_CR4_OSFSXR:
1219
1220 /*
1221 * Insert relative jump to specified target it FXSAVE/FXRSTOR isn't supported by the cpu.
1222 */
1223 case FIX_NO_FXSAVE_JMP:
1224 {
1225 uint32_t offTrg = *u.pu32++;
1226 Assert(offTrg < pSwitcher->cbCode);
1227 if (!CPUMSupportsFXSR(pVM))
1228 {
1229 *uSrc.pu8++ = 0xe9; /* jmp rel32 */
1230 *uSrc.pu32++ = offTrg - (offSrc + 5);
1231 }
1232 else
1233 {
1234 *uSrc.pu8++ = *((uint8_t *)pSwitcher->pvCode + offSrc);
1235 *uSrc.pu32++ = *(uint32_t *)((uint8_t *)pSwitcher->pvCode + offSrc + 1);
1236 }
1237 break;
1238 }
1239
1240 /*
1241 * Insert relative jump to specified target it SYSENTER isn't used by the host.
1242 */
1243 case FIX_NO_SYSENTER_JMP:
1244 {
1245 uint32_t offTrg = *u.pu32++;
1246 Assert(offTrg < pSwitcher->cbCode);
1247 if (!CPUMIsHostUsingSysEnter(pVM))
1248 {
1249 *uSrc.pu8++ = 0xe9; /* jmp rel32 */
1250 *uSrc.pu32++ = offTrg - (offSrc + 5);
1251 }
1252 else
1253 {
1254 *uSrc.pu8++ = *((uint8_t *)pSwitcher->pvCode + offSrc);
1255 *uSrc.pu32++ = *(uint32_t *)((uint8_t *)pSwitcher->pvCode + offSrc + 1);
1256 }
1257 break;
1258 }
1259
1260 /*
1261 * Insert relative jump to specified target it SYSENTER isn't used by the host.
1262 */
1263 case FIX_NO_SYSCALL_JMP:
1264 {
1265 uint32_t offTrg = *u.pu32++;
1266 Assert(offTrg < pSwitcher->cbCode);
1267 if (!CPUMIsHostUsingSysEnter(pVM))
1268 {
1269 *uSrc.pu8++ = 0xe9; /* jmp rel32 */
1270 *uSrc.pu32++ = offTrg - (offSrc + 5);
1271 }
1272 else
1273 {
1274 *uSrc.pu8++ = *((uint8_t *)pSwitcher->pvCode + offSrc);
1275 *uSrc.pu32++ = *(uint32_t *)((uint8_t *)pSwitcher->pvCode + offSrc + 1);
1276 }
1277 break;
1278 }
1279
1280 /*
1281 * 32-bit HC pointer fixup to (HC) target within the code (32-bit offset).
1282 */
1283 case FIX_HC_32BIT:
1284 {
1285 uint32_t offTrg = *u.pu32++;
1286 Assert(offSrc < pSwitcher->cbCode);
1287 Assert(offTrg - pSwitcher->offHCCode0 < pSwitcher->cbHCCode0 || offTrg - pSwitcher->offHCCode1 < pSwitcher->cbHCCode1);
1288 *uSrc.pu32 = (uintptr_t)pu8CodeR0 + offTrg;
1289 break;
1290 }
1291
1292#if defined(RT_ARCH_AMD64) || defined(VBOX_WITH_HYBIRD_32BIT_KERNEL)
1293 /*
1294 * 64-bit HC pointer fixup to (HC) target within the code (32-bit offset).
1295 */
1296 case FIX_HC_64BIT:
1297 {
1298 uint32_t offTrg = *u.pu32++;
1299 Assert(offSrc < pSwitcher->cbCode);
1300 Assert(offTrg - pSwitcher->offHCCode0 < pSwitcher->cbHCCode0 || offTrg - pSwitcher->offHCCode1 < pSwitcher->cbHCCode1);
1301 *uSrc.pu64 = (uintptr_t)pu8CodeR0 + offTrg;
1302 break;
1303 }
1304
1305 /*
1306 * 64-bit HC Code Selector (no argument).
1307 */
1308 case FIX_HC_64BIT_CS:
1309 {
1310 Assert(offSrc < pSwitcher->cbCode);
1311#if defined(RT_OS_DARWIN) && defined(VBOX_WITH_HYBIRD_32BIT_KERNEL)
1312 *uSrc.pu16 = 0x80; /* KERNEL64_CS from i386/seg.h */
1313#else
1314 AssertFatalMsgFailed(("FIX_HC_64BIT_CS not implemented for this host\n"));
1315#endif
1316 break;
1317 }
1318
1319 /*
1320 * 64-bit HC pointer to the CPUM instance data (no argument).
1321 */
1322 case FIX_HC_64BIT_CPUM:
1323 {
1324 Assert(offSrc < pSwitcher->cbCode);
1325 *uSrc.pu64 = pVM->pVMR0 + RT_OFFSETOF(VM, cpum);
1326 break;
1327 }
1328#endif
1329
1330 /*
1331 * 32-bit ID pointer to (ID) target within the code (32-bit offset).
1332 */
1333 case FIX_ID_32BIT:
1334 {
1335 uint32_t offTrg = *u.pu32++;
1336 Assert(offSrc < pSwitcher->cbCode);
1337 Assert(offTrg - pSwitcher->offIDCode0 < pSwitcher->cbIDCode0 || offTrg - pSwitcher->offIDCode1 < pSwitcher->cbIDCode1);
1338 *uSrc.pu32 = u32IDCode + offTrg;
1339 break;
1340 }
1341
1342 /*
1343 * 64-bit ID pointer to (ID) target within the code (32-bit offset).
1344 */
1345 case FIX_ID_64BIT:
1346 {
1347 uint32_t offTrg = *u.pu32++;
1348 Assert(offSrc < pSwitcher->cbCode);
1349 Assert(offTrg - pSwitcher->offIDCode0 < pSwitcher->cbIDCode0 || offTrg - pSwitcher->offIDCode1 < pSwitcher->cbIDCode1);
1350 *uSrc.pu64 = u32IDCode + offTrg;
1351 break;
1352 }
1353
1354 /*
1355 * Far 16:32 ID pointer to 64-bit mode (ID) target within the code (32-bit offset).
1356 */
1357 case FIX_ID_FAR32_TO_64BIT_MODE:
1358 {
1359 uint32_t offTrg = *u.pu32++;
1360 Assert(offSrc < pSwitcher->cbCode);
1361 Assert(offTrg - pSwitcher->offIDCode0 < pSwitcher->cbIDCode0 || offTrg - pSwitcher->offIDCode1 < pSwitcher->cbIDCode1);
1362 *uSrc.pu32++ = u32IDCode + offTrg;
1363 *uSrc.pu16 = SelCS64;
1364 AssertRelease(SelCS64);
1365 break;
1366 }
1367
1368#ifdef VBOX_WITH_NMI
1369 /*
1370 * 32-bit address to the APIC base.
1371 */
1372 case FIX_GC_APIC_BASE_32BIT:
1373 {
1374 *uSrc.pu32 = pVM->vmm.s.GCPtrApicBase;
1375 break;
1376 }
1377#endif
1378
1379 default:
1380 AssertReleaseMsgFailed(("Unknown fixup %d in switcher %s\n", u8, pSwitcher->pszDesc));
1381 break;
1382 }
1383 }
1384
1385#ifdef LOG_ENABLED
1386 /*
1387 * If Log2 is enabled disassemble the switcher code.
1388 *
1389 * The switcher code have 1-2 HC parts, 1 GC part and 0-2 ID parts.
1390 */
1391 if (LogIs2Enabled())
1392 {
1393 RTLogPrintf("*** Disassembly of switcher %d '%s' %#x bytes ***\n"
1394 " pu8CodeR0 = %p\n"
1395 " pu8CodeR3 = %p\n"
1396 " GCPtrCode = %VGv\n"
1397 " u32IDCode = %08x\n"
1398 " pVMGC = %VGv\n"
1399 " pCPUMGC = %VGv\n"
1400 " pVMHC = %p\n"
1401 " pCPUMHC = %p\n"
1402 " GCPtrGDT = %VGv\n"
1403 " InterCR3s = %08x, %08x, %08x (32-Bit, PAE, AMD64)\n"
1404 " HyperCR3s = %08x, %08x, %08x (32-Bit, PAE, AMD64)\n"
1405 " SelCS = %04x\n"
1406 " SelDS = %04x\n"
1407 " SelCS64 = %04x\n"
1408 " SelTSS = %04x\n",
1409 pSwitcher->enmType, pSwitcher->pszDesc, pSwitcher->cbCode,
1410 pu8CodeR0, pu8CodeR3, GCPtrCode, u32IDCode, VM_GUEST_ADDR(pVM, pVM),
1411 VM_GUEST_ADDR(pVM, &pVM->cpum), pVM, &pVM->cpum,
1412 GCPtrGDT,
1413 PGMGetHyper32BitCR3(pVM), PGMGetHyperPaeCR3(pVM), PGMGetHyperAmd64CR3(pVM),
1414 PGMGetInter32BitCR3(pVM), PGMGetInterPaeCR3(pVM), PGMGetInterAmd64CR3(pVM),
1415 SelCS, SelDS, SelCS64, SelTSS);
1416
1417 uint32_t offCode = 0;
1418 while (offCode < pSwitcher->cbCode)
1419 {
1420 /*
1421 * Figure out where this is.
1422 */
1423 const char *pszDesc = NULL;
1424 RTUINTPTR uBase;
1425 uint32_t cbCode;
1426 if (offCode - pSwitcher->offHCCode0 < pSwitcher->cbHCCode0)
1427 {
1428 pszDesc = "HCCode0";
1429 uBase = (RTUINTPTR)pu8CodeR0;
1430 offCode = pSwitcher->offHCCode0;
1431 cbCode = pSwitcher->cbHCCode0;
1432 }
1433 else if (offCode - pSwitcher->offHCCode1 < pSwitcher->cbHCCode1)
1434 {
1435 pszDesc = "HCCode1";
1436 uBase = (RTUINTPTR)pu8CodeR0;
1437 offCode = pSwitcher->offHCCode1;
1438 cbCode = pSwitcher->cbHCCode1;
1439 }
1440 else if (offCode - pSwitcher->offGCCode < pSwitcher->cbGCCode)
1441 {
1442 pszDesc = "GCCode";
1443 uBase = GCPtrCode;
1444 offCode = pSwitcher->offGCCode;
1445 cbCode = pSwitcher->cbGCCode;
1446 }
1447 else if (offCode - pSwitcher->offIDCode0 < pSwitcher->cbIDCode0)
1448 {
1449 pszDesc = "IDCode0";
1450 uBase = u32IDCode;
1451 offCode = pSwitcher->offIDCode0;
1452 cbCode = pSwitcher->cbIDCode0;
1453 }
1454 else if (offCode - pSwitcher->offIDCode1 < pSwitcher->cbIDCode1)
1455 {
1456 pszDesc = "IDCode1";
1457 uBase = u32IDCode;
1458 offCode = pSwitcher->offIDCode1;
1459 cbCode = pSwitcher->cbIDCode1;
1460 }
1461 else
1462 {
1463 RTLogPrintf(" %04x: %02x '%c' (nowhere)\n",
1464 offCode, pu8CodeR3[offCode], isprint(pu8CodeR3[offCode]) ? pu8CodeR3[offCode] : ' ');
1465 offCode++;
1466 continue;
1467 }
1468
1469 /*
1470 * Disassemble it.
1471 */
1472 RTLogPrintf(" %s: offCode=%#x cbCode=%#x\n", pszDesc, offCode, cbCode);
1473 DISCPUSTATE Cpu;
1474
1475 memset(&Cpu, 0, sizeof(Cpu));
1476 Cpu.mode = CPUMODE_32BIT;
1477 while (cbCode > 0)
1478 {
1479 /* try label it */
1480 if (pSwitcher->offR0HostToGuest == offCode)
1481 RTLogPrintf(" *R0HostToGuest:\n");
1482 if (pSwitcher->offGCGuestToHost == offCode)
1483 RTLogPrintf(" *GCGuestToHost:\n");
1484 if (pSwitcher->offGCCallTrampoline == offCode)
1485 RTLogPrintf(" *GCCallTrampoline:\n");
1486 if (pSwitcher->offGCGuestToHostAsm == offCode)
1487 RTLogPrintf(" *GCGuestToHostAsm:\n");
1488 if (pSwitcher->offGCGuestToHostAsmHyperCtx == offCode)
1489 RTLogPrintf(" *GCGuestToHostAsmHyperCtx:\n");
1490 if (pSwitcher->offGCGuestToHostAsmGuestCtx == offCode)
1491 RTLogPrintf(" *GCGuestToHostAsmGuestCtx:\n");
1492
1493 /* disas */
1494 uint32_t cbInstr = 0;
1495 char szDisas[256];
1496 if (RT_SUCCESS(DISInstr(&Cpu, (RTUINTPTR)pu8CodeR3 + offCode, uBase - (RTUINTPTR)pu8CodeR3, &cbInstr, szDisas)))
1497 RTLogPrintf(" %04x: %s", offCode, szDisas); //for whatever reason szDisas includes '\n'.
1498 else
1499 {
1500 RTLogPrintf(" %04x: %02x '%c'\n",
1501 offCode, pu8CodeR3[offCode], isprint(pu8CodeR3[offCode]) ? pu8CodeR3[offCode] : ' ');
1502 cbInstr = 1;
1503 }
1504 offCode += cbInstr;
1505 cbCode -= RT_MIN(cbInstr, cbCode);
1506 }
1507 }
1508 }
1509#endif
1510}
1511
1512
1513/**
1514 * Relocator for the 32-Bit to 32-Bit world switcher.
1515 */
1516DECLCALLBACK(void) vmmR3Switcher32BitTo32Bit_Relocate(PVM pVM, PVMMSWITCHERDEF pSwitcher, uint8_t *pu8CodeR0, uint8_t *pu8CodeR3, RTGCPTR GCPtrCode, uint32_t u32IDCode)
1517{
1518 vmmR3SwitcherGenericRelocate(pVM, pSwitcher, pu8CodeR0, pu8CodeR3, GCPtrCode, u32IDCode,
1519 SELMGetHyperCS(pVM), SELMGetHyperDS(pVM), SELMGetHyperTSS(pVM), SELMGetHyperGDT(pVM), 0);
1520}
1521
1522
1523/**
1524 * Relocator for the 32-Bit to PAE world switcher.
1525 */
1526DECLCALLBACK(void) vmmR3Switcher32BitToPAE_Relocate(PVM pVM, PVMMSWITCHERDEF pSwitcher, uint8_t *pu8CodeR0, uint8_t *pu8CodeR3, RTGCPTR GCPtrCode, uint32_t u32IDCode)
1527{
1528 vmmR3SwitcherGenericRelocate(pVM, pSwitcher, pu8CodeR0, pu8CodeR3, GCPtrCode, u32IDCode,
1529 SELMGetHyperCS(pVM), SELMGetHyperDS(pVM), SELMGetHyperTSS(pVM), SELMGetHyperGDT(pVM), 0);
1530}
1531
1532
1533/**
1534 * Relocator for the PAE to 32-Bit world switcher.
1535 */
1536DECLCALLBACK(void) vmmR3SwitcherPAETo32Bit_Relocate(PVM pVM, PVMMSWITCHERDEF pSwitcher, uint8_t *pu8CodeR0, uint8_t *pu8CodeR3, RTGCPTR GCPtrCode, uint32_t u32IDCode)
1537{
1538 vmmR3SwitcherGenericRelocate(pVM, pSwitcher, pu8CodeR0, pu8CodeR3, GCPtrCode, u32IDCode,
1539 SELMGetHyperCS(pVM), SELMGetHyperDS(pVM), SELMGetHyperTSS(pVM), SELMGetHyperGDT(pVM), 0);
1540}
1541
1542
1543/**
1544 * Relocator for the PAE to PAE world switcher.
1545 */
1546DECLCALLBACK(void) vmmR3SwitcherPAEToPAE_Relocate(PVM pVM, PVMMSWITCHERDEF pSwitcher, uint8_t *pu8CodeR0, uint8_t *pu8CodeR3, RTGCPTR GCPtrCode, uint32_t u32IDCode)
1547{
1548 vmmR3SwitcherGenericRelocate(pVM, pSwitcher, pu8CodeR0, pu8CodeR3, GCPtrCode, u32IDCode,
1549 SELMGetHyperCS(pVM), SELMGetHyperDS(pVM), SELMGetHyperTSS(pVM), SELMGetHyperGDT(pVM), 0);
1550}
1551
1552
1553/**
1554 * Relocator for the AMD64 to PAE world switcher.
1555 */
1556DECLCALLBACK(void) vmmR3SwitcherAMD64ToPAE_Relocate(PVM pVM, PVMMSWITCHERDEF pSwitcher, uint8_t *pu8CodeR0, uint8_t *pu8CodeR3, RTGCPTR GCPtrCode, uint32_t u32IDCode)
1557{
1558 vmmR3SwitcherGenericRelocate(pVM, pSwitcher, pu8CodeR0, pu8CodeR3, GCPtrCode, u32IDCode,
1559 SELMGetHyperCS(pVM), SELMGetHyperDS(pVM), SELMGetHyperTSS(pVM), SELMGetHyperGDT(pVM), SELMGetHyperCS64(pVM));
1560}
1561
1562
1563/**
1564 * Gets the pointer to g_szRTAssertMsg1 in GC.
1565 * @returns Pointer to VMMGC::g_szRTAssertMsg1.
1566 * Returns NULL if not present.
1567 * @param pVM The VM handle.
1568 */
1569VMMR3DECL(const char *) VMMR3GetGCAssertMsg1(PVM pVM)
1570{
1571 RTGCPTR32 GCPtr;
1572 int rc = PDMR3GetSymbolGC(pVM, NULL, "g_szRTAssertMsg1", &GCPtr);
1573 if (VBOX_SUCCESS(rc))
1574 return (const char *)MMHyperGC2HC(pVM, GCPtr);
1575 return NULL;
1576}
1577
1578
1579/**
1580 * Gets the pointer to g_szRTAssertMsg2 in GC.
1581 * @returns Pointer to VMMGC::g_szRTAssertMsg2.
1582 * Returns NULL if not present.
1583 * @param pVM The VM handle.
1584 */
1585VMMR3DECL(const char *) VMMR3GetGCAssertMsg2(PVM pVM)
1586{
1587 RTGCPTR32 GCPtr;
1588 int rc = PDMR3GetSymbolGC(pVM, NULL, "g_szRTAssertMsg2", &GCPtr);
1589 if (VBOX_SUCCESS(rc))
1590 return (const char *)MMHyperGC2HC(pVM, GCPtr);
1591 return NULL;
1592}
1593
1594
1595/**
1596 * Execute state save operation.
1597 *
1598 * @returns VBox status code.
1599 * @param pVM VM Handle.
1600 * @param pSSM SSM operation handle.
1601 */
1602static DECLCALLBACK(int) vmmR3Save(PVM pVM, PSSMHANDLE pSSM)
1603{
1604 LogFlow(("vmmR3Save:\n"));
1605
1606 /*
1607 * The hypervisor stack.
1608 */
1609 SSMR3PutGCPtr(pSSM, pVM->vmm.s.pbGCStackBottom);
1610 RTGCPTR GCPtrESP = CPUMGetHyperESP(pVM);
1611 Assert(pVM->vmm.s.pbGCStackBottom - GCPtrESP <= VMM_STACK_SIZE);
1612 SSMR3PutGCPtr(pSSM, GCPtrESP);
1613 SSMR3PutMem(pSSM, pVM->vmm.s.pbHCStack, VMM_STACK_SIZE);
1614 return SSMR3PutU32(pSSM, ~0); /* terminator */
1615}
1616
1617
1618/**
1619 * Execute state load operation.
1620 *
1621 * @returns VBox status code.
1622 * @param pVM VM Handle.
1623 * @param pSSM SSM operation handle.
1624 * @param u32Version Data layout version.
1625 */
1626static DECLCALLBACK(int) vmmR3Load(PVM pVM, PSSMHANDLE pSSM, uint32_t u32Version)
1627{
1628 LogFlow(("vmmR3Load:\n"));
1629
1630 /*
1631 * Validate version.
1632 */
1633 if (u32Version != VMM_SAVED_STATE_VERSION)
1634 {
1635 Log(("vmmR3Load: Invalid version u32Version=%d!\n", u32Version));
1636 return VERR_SSM_UNSUPPORTED_DATA_UNIT_VERSION;
1637 }
1638
1639 /*
1640 * Check that the stack is in the same place, or that it's fearly empty.
1641 */
1642 RTGCPTR GCPtrStackBottom;
1643 SSMR3GetGCPtr(pSSM, &GCPtrStackBottom);
1644 RTGCPTR GCPtrESP;
1645 int rc = SSMR3GetGCPtr(pSSM, &GCPtrESP);
1646 if (VBOX_FAILURE(rc))
1647 return rc;
1648 if ( GCPtrStackBottom == pVM->vmm.s.pbGCStackBottom
1649 || (GCPtrStackBottom - GCPtrESP < 32)) /** @todo This will break if we start preemting the hypervisor. */
1650 {
1651 /*
1652 * We *must* set the ESP because the CPUM load + PGM load relocations will render
1653 * the ESP in CPUM fatally invalid.
1654 */
1655 CPUMSetHyperESP(pVM, GCPtrESP);
1656
1657 /* restore the stack. */
1658 SSMR3GetMem(pSSM, pVM->vmm.s.pbHCStack, VMM_STACK_SIZE);
1659
1660 /* terminator */
1661 uint32_t u32;
1662 rc = SSMR3GetU32(pSSM, &u32);
1663 if (VBOX_FAILURE(rc))
1664 return rc;
1665 if (u32 != ~0U)
1666 {
1667 AssertMsgFailed(("u32=%#x\n", u32));
1668 return VERR_SSM_DATA_UNIT_FORMAT_CHANGED;
1669 }
1670 return VINF_SUCCESS;
1671 }
1672
1673 LogRel(("The stack is not in the same place and it's not empty! GCPtrStackBottom=%VGv pbGCStackBottom=%VGv ESP=%VGv\n",
1674 GCPtrStackBottom, pVM->vmm.s.pbGCStackBottom, GCPtrESP));
1675 if (SSMR3HandleGetAfter(pSSM) == SSMAFTER_DEBUG_IT)
1676 return VINF_SUCCESS; /* ignore this */
1677 AssertFailed();
1678 return VERR_SSM_LOAD_CONFIG_MISMATCH;
1679}
1680
1681
1682/**
1683 * Selects the switcher to be used for switching to GC.
1684 *
1685 * @returns VBox status code.
1686 * @param pVM VM handle.
1687 * @param enmSwitcher The new switcher.
1688 * @remark This function may be called before the VMM is initialized.
1689 */
1690VMMR3DECL(int) VMMR3SelectSwitcher(PVM pVM, VMMSWITCHER enmSwitcher)
1691{
1692 /*
1693 * Validate input.
1694 */
1695 if ( enmSwitcher < VMMSWITCHER_INVALID
1696 || enmSwitcher >= VMMSWITCHER_MAX)
1697 {
1698 AssertMsgFailed(("Invalid input enmSwitcher=%d\n", enmSwitcher));
1699 return VERR_INVALID_PARAMETER;
1700 }
1701
1702 /* Do nothing if the switcher is disabled. */
1703 if (pVM->vmm.s.fSwitcherDisabled)
1704 return VINF_SUCCESS;
1705
1706 /*
1707 * Select the new switcher.
1708 */
1709 PVMMSWITCHERDEF pSwitcher = s_apSwitchers[enmSwitcher];
1710 if (pSwitcher)
1711 {
1712 Log(("VMMR3SelectSwitcher: enmSwitcher %d -> %d %s\n", pVM->vmm.s.enmSwitcher, enmSwitcher, pSwitcher->pszDesc));
1713 pVM->vmm.s.enmSwitcher = enmSwitcher;
1714
1715 RTR0PTR pbCodeR0 = (RTR0PTR)pVM->vmm.s.pvHCCoreCodeR0 + pVM->vmm.s.aoffSwitchers[enmSwitcher]; /** @todo fix the pvHCCoreCodeR0 type */
1716 pVM->vmm.s.pfnR0HostToGuest = pbCodeR0 + pSwitcher->offR0HostToGuest;
1717
1718 RTGCPTR GCPtr = pVM->vmm.s.pvGCCoreCode + pVM->vmm.s.aoffSwitchers[enmSwitcher];
1719 pVM->vmm.s.pfnGCGuestToHost = GCPtr + pSwitcher->offGCGuestToHost;
1720 pVM->vmm.s.pfnGCCallTrampoline = GCPtr + pSwitcher->offGCCallTrampoline;
1721 pVM->pfnVMMGCGuestToHostAsm = GCPtr + pSwitcher->offGCGuestToHostAsm;
1722 pVM->pfnVMMGCGuestToHostAsmHyperCtx = GCPtr + pSwitcher->offGCGuestToHostAsmHyperCtx;
1723 pVM->pfnVMMGCGuestToHostAsmGuestCtx = GCPtr + pSwitcher->offGCGuestToHostAsmGuestCtx;
1724 return VINF_SUCCESS;
1725 }
1726 return VERR_NOT_IMPLEMENTED;
1727}
1728
1729/**
1730 * Disable the switcher logic permanently.
1731 *
1732 * @returns VBox status code.
1733 * @param pVM VM handle.
1734 */
1735VMMR3DECL(int) VMMR3DisableSwitcher(PVM pVM)
1736{
1737/** @todo r=bird: I would suggest that we create a dummy switcher which just does something like:
1738 * @code
1739 * mov eax, VERR_INTERNAL_ERROR
1740 * ret
1741 * @endcode
1742 * And then check for fSwitcherDisabled in VMMR3SelectSwitcher() in order to prevent it from being removed.
1743 */
1744 pVM->vmm.s.fSwitcherDisabled = true;
1745 return VINF_SUCCESS;
1746}
1747
1748
1749/**
1750 * Resolve a builtin GC symbol.
1751 * Called by PDM when loading or relocating GC modules.
1752 *
1753 * @returns VBox status
1754 * @param pVM VM Handle.
1755 * @param pszSymbol Symbol to resolv
1756 * @param pGCPtrValue Where to store the symbol value.
1757 * @remark This has to work before VMMR3Relocate() is called.
1758 */
1759VMMR3DECL(int) VMMR3GetImportGC(PVM pVM, const char *pszSymbol, PRTGCPTR pGCPtrValue)
1760{
1761 if (!strcmp(pszSymbol, "g_Logger"))
1762 {
1763 if (pVM->vmm.s.pLoggerHC)
1764 pVM->vmm.s.pLoggerGC = MMHyperHC2GC(pVM, pVM->vmm.s.pLoggerHC);
1765 *pGCPtrValue = pVM->vmm.s.pLoggerGC;
1766 }
1767 else if (!strcmp(pszSymbol, "g_RelLogger"))
1768 {
1769#ifdef VBOX_WITH_GC_AND_R0_RELEASE_LOG
1770 if (pVM->vmm.s.pRelLoggerHC)
1771 pVM->vmm.s.pRelLoggerGC = MMHyperHC2GC(pVM, pVM->vmm.s.pRelLoggerHC);
1772 *pGCPtrValue = pVM->vmm.s.pRelLoggerGC;
1773#else
1774 *pGCPtrValue = NIL_RTGCPTR;
1775#endif
1776 }
1777 else
1778 return VERR_SYMBOL_NOT_FOUND;
1779 return VINF_SUCCESS;
1780}
1781
1782
1783/**
1784 * Suspends the the CPU yielder.
1785 *
1786 * @param pVM The VM handle.
1787 */
1788VMMR3DECL(void) VMMR3YieldSuspend(PVM pVM)
1789{
1790 if (!pVM->vmm.s.cYieldResumeMillies)
1791 {
1792 uint64_t u64Now = TMTimerGet(pVM->vmm.s.pYieldTimer);
1793 uint64_t u64Expire = TMTimerGetExpire(pVM->vmm.s.pYieldTimer);
1794 if (u64Now >= u64Expire || u64Expire == ~(uint64_t)0)
1795 pVM->vmm.s.cYieldResumeMillies = pVM->vmm.s.cYieldEveryMillies;
1796 else
1797 pVM->vmm.s.cYieldResumeMillies = TMTimerToMilli(pVM->vmm.s.pYieldTimer, u64Expire - u64Now);
1798 TMTimerStop(pVM->vmm.s.pYieldTimer);
1799 }
1800 pVM->vmm.s.u64LastYield = RTTimeNanoTS();
1801}
1802
1803
1804/**
1805 * Stops the the CPU yielder.
1806 *
1807 * @param pVM The VM handle.
1808 */
1809VMMR3DECL(void) VMMR3YieldStop(PVM pVM)
1810{
1811 if (!pVM->vmm.s.cYieldResumeMillies)
1812 TMTimerStop(pVM->vmm.s.pYieldTimer);
1813 pVM->vmm.s.cYieldResumeMillies = pVM->vmm.s.cYieldEveryMillies;
1814 pVM->vmm.s.u64LastYield = RTTimeNanoTS();
1815}
1816
1817
1818/**
1819 * Resumes the CPU yielder when it has been a suspended or stopped.
1820 *
1821 * @param pVM The VM handle.
1822 */
1823VMMR3DECL(void) VMMR3YieldResume(PVM pVM)
1824{
1825 if (pVM->vmm.s.cYieldResumeMillies)
1826 {
1827 TMTimerSetMillies(pVM->vmm.s.pYieldTimer, pVM->vmm.s.cYieldResumeMillies);
1828 pVM->vmm.s.cYieldResumeMillies = 0;
1829 }
1830}
1831
1832
1833/**
1834 * Internal timer callback function.
1835 *
1836 * @param pVM The VM.
1837 * @param pTimer The timer handle.
1838 * @param pvUser User argument specified upon timer creation.
1839 */
1840static DECLCALLBACK(void) vmmR3YieldEMT(PVM pVM, PTMTIMER pTimer, void *pvUser)
1841{
1842 /*
1843 * This really needs some careful tuning. While we shouldn't be too gready since
1844 * that'll cause the rest of the system to stop up, we shouldn't be too nice either
1845 * because that'll cause us to stop up.
1846 *
1847 * The current logic is to use the default interval when there is no lag worth
1848 * mentioning, but when we start accumulating lag we don't bother yielding at all.
1849 *
1850 * (This depends on the TMCLOCK_VIRTUAL_SYNC to be scheduled before TMCLOCK_REAL
1851 * so the lag is up to date.)
1852 */
1853 const uint64_t u64Lag = TMVirtualSyncGetLag(pVM);
1854 if ( u64Lag < 50000000 /* 50ms */
1855 || ( u64Lag < 1000000000 /* 1s */
1856 && RTTimeNanoTS() - pVM->vmm.s.u64LastYield < 500000000 /* 500 ms */)
1857 )
1858 {
1859 uint64_t u64Elapsed = RTTimeNanoTS();
1860 pVM->vmm.s.u64LastYield = u64Elapsed;
1861
1862 RTThreadYield();
1863
1864#ifdef LOG_ENABLED
1865 u64Elapsed = RTTimeNanoTS() - u64Elapsed;
1866 Log(("vmmR3YieldEMT: %RI64 ns\n", u64Elapsed));
1867#endif
1868 }
1869 TMTimerSetMillies(pTimer, pVM->vmm.s.cYieldEveryMillies);
1870}
1871
1872
1873/**
1874 * Acquire global VM lock.
1875 *
1876 * @returns VBox status code
1877 * @param pVM The VM to operate on.
1878 */
1879VMMR3DECL(int) VMMR3Lock(PVM pVM)
1880{
1881 return RTCritSectEnter(&pVM->vmm.s.CritSectVMLock);
1882}
1883
1884
1885/**
1886 * Release global VM lock.
1887 *
1888 * @returns VBox status code
1889 * @param pVM The VM to operate on.
1890 */
1891VMMR3DECL(int) VMMR3Unlock(PVM pVM)
1892{
1893 return RTCritSectLeave(&pVM->vmm.s.CritSectVMLock);
1894}
1895
1896
1897/**
1898 * Return global VM lock owner.
1899 *
1900 * @returns Thread id of owner.
1901 * @returns NIL_RTTHREAD if no owner.
1902 * @param pVM The VM to operate on.
1903 */
1904VMMR3DECL(RTNATIVETHREAD) VMMR3LockGetOwner(PVM pVM)
1905{
1906 return RTCritSectGetOwner(&pVM->vmm.s.CritSectVMLock);
1907}
1908
1909
1910/**
1911 * Checks if the current thread is the owner of the global VM lock.
1912 *
1913 * @returns true if owner.
1914 * @returns false if not owner.
1915 * @param pVM The VM to operate on.
1916 */
1917VMMR3DECL(bool) VMMR3LockIsOwner(PVM pVM)
1918{
1919 return RTCritSectIsOwner(&pVM->vmm.s.CritSectVMLock);
1920}
1921
1922
1923/**
1924 * Executes guest code.
1925 *
1926 * @param pVM VM handle.
1927 */
1928VMMR3DECL(int) VMMR3RawRunGC(PVM pVM)
1929{
1930 Log2(("VMMR3RawRunGC: (cs:eip=%04x:%08x)\n", CPUMGetGuestCS(pVM), CPUMGetGuestEIP(pVM)));
1931
1932 /*
1933 * Set the EIP and ESP.
1934 */
1935 CPUMSetHyperEIP(pVM, CPUMGetGuestEFlags(pVM) & X86_EFL_VM
1936 ? pVM->vmm.s.pfnCPUMGCResumeGuestV86
1937 : pVM->vmm.s.pfnCPUMGCResumeGuest);
1938 CPUMSetHyperESP(pVM, pVM->vmm.s.pbGCStackBottom);
1939
1940 /*
1941 * We hide log flushes (outer) and hypervisor interrupts (inner).
1942 */
1943 for (;;)
1944 {
1945 int rc;
1946 do
1947 {
1948#ifdef NO_SUPCALLR0VMM
1949 rc = VERR_GENERAL_FAILURE;
1950#else
1951 rc = SUPCallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN);
1952 if (RT_LIKELY(rc == VINF_SUCCESS))
1953 rc = pVM->vmm.s.iLastGCRc;
1954#endif
1955 } while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
1956
1957 /*
1958 * Flush the logs.
1959 */
1960#ifdef LOG_ENABLED
1961 PRTLOGGERRC pLogger = pVM->vmm.s.pLoggerHC;
1962 if ( pLogger
1963 && pLogger->offScratch > 0)
1964 RTLogFlushGC(NULL, pLogger);
1965#endif
1966#ifdef VBOX_WITH_GC_AND_R0_RELEASE_LOG
1967 PRTLOGGERRC pRelLogger = pVM->vmm.s.pRelLoggerHC;
1968 if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
1969 RTLogFlushGC(RTLogRelDefaultInstance(), pRelLogger);
1970#endif
1971 if (rc != VINF_VMM_CALL_HOST)
1972 {
1973 Log2(("VMMR3RawRunGC: returns %Vrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVM), CPUMGetGuestEIP(pVM)));
1974 return rc;
1975 }
1976 rc = vmmR3ServiceCallHostRequest(pVM);
1977 if (VBOX_FAILURE(rc))
1978 return rc;
1979 /* Resume GC */
1980 }
1981}
1982
1983
1984/**
1985 * Executes guest code (Intel VT-x and AMD-V).
1986 *
1987 * @param pVM VM handle.
1988 */
1989VMMR3DECL(int) VMMR3HwAccRunGC(PVM pVM)
1990{
1991 Log2(("VMMR3HwAccRunGC: (cs:eip=%04x:%08x)\n", CPUMGetGuestCS(pVM), CPUMGetGuestEIP(pVM)));
1992
1993 for (;;)
1994 {
1995 int rc;
1996 do
1997 {
1998#ifdef NO_SUPCALLR0VMM
1999 rc = VERR_GENERAL_FAILURE;
2000#else
2001 rc = SUPCallVMMR0Fast(pVM->pVMR0, VMMR0_DO_HWACC_RUN);
2002 if (RT_LIKELY(rc == VINF_SUCCESS))
2003 rc = pVM->vmm.s.iLastGCRc;
2004#endif
2005 } while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
2006
2007#ifdef LOG_ENABLED
2008 /*
2009 * Flush the log
2010 */
2011 PVMMR0LOGGER pR0Logger = pVM->vmm.s.pR0Logger;
2012 if ( pR0Logger
2013 && pR0Logger->Logger.offScratch > 0)
2014 RTLogFlushToLogger(&pR0Logger->Logger, NULL);
2015#endif /* !LOG_ENABLED */
2016 if (rc != VINF_VMM_CALL_HOST)
2017 {
2018 Log2(("VMMR3HwAccRunGC: returns %Vrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVM), CPUMGetGuestEIP(pVM)));
2019 return rc;
2020 }
2021 rc = vmmR3ServiceCallHostRequest(pVM);
2022 if (VBOX_FAILURE(rc) || rc == VINF_EM_DBG_HYPER_ASSERTION)
2023 return rc;
2024 /* Resume R0 */
2025 }
2026}
2027
2028/**
2029 * Calls GC a function.
2030 *
2031 * @param pVM The VM handle.
2032 * @param GCPtrEntry The GC function address.
2033 * @param cArgs The number of arguments in the ....
2034 * @param ... Arguments to the function.
2035 */
2036VMMR3DECL(int) VMMR3CallGC(PVM pVM, RTGCPTR GCPtrEntry, unsigned cArgs, ...)
2037{
2038 va_list args;
2039 va_start(args, cArgs);
2040 int rc = VMMR3CallGCV(pVM, GCPtrEntry, cArgs, args);
2041 va_end(args);
2042 return rc;
2043}
2044
2045
2046/**
2047 * Calls GC a function.
2048 *
2049 * @param pVM The VM handle.
2050 * @param GCPtrEntry The GC function address.
2051 * @param cArgs The number of arguments in the ....
2052 * @param args Arguments to the function.
2053 */
2054VMMR3DECL(int) VMMR3CallGCV(PVM pVM, RTGCPTR GCPtrEntry, unsigned cArgs, va_list args)
2055{
2056 Log2(("VMMR3CallGCV: GCPtrEntry=%VGv cArgs=%d\n", GCPtrEntry, cArgs));
2057
2058 /*
2059 * Setup the call frame using the trampoline.
2060 */
2061 CPUMHyperSetCtxCore(pVM, NULL);
2062 memset(pVM->vmm.s.pbHCStack, 0xaa, VMM_STACK_SIZE); /* Clear the stack. */
2063 CPUMSetHyperESP(pVM, pVM->vmm.s.pbGCStackBottom - cArgs * sizeof(RTGCUINTPTR));
2064 PRTGCUINTPTR pFrame = (PRTGCUINTPTR)(pVM->vmm.s.pbHCStack + VMM_STACK_SIZE) - cArgs;
2065 int i = cArgs;
2066 while (i-- > 0)
2067 *pFrame++ = va_arg(args, RTGCUINTPTR);
2068
2069 CPUMPushHyper(pVM, cArgs * sizeof(RTGCUINTPTR)); /* stack frame size */
2070 CPUMPushHyper(pVM, GCPtrEntry); /* what to call */
2071 CPUMSetHyperEIP(pVM, pVM->vmm.s.pfnGCCallTrampoline);
2072
2073 /*
2074 * We hide log flushes (outer) and hypervisor interrupts (inner).
2075 */
2076 for (;;)
2077 {
2078 int rc;
2079 do
2080 {
2081#ifdef NO_SUPCALLR0VMM
2082 rc = VERR_GENERAL_FAILURE;
2083#else
2084 rc = SUPCallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN);
2085 if (RT_LIKELY(rc == VINF_SUCCESS))
2086 rc = pVM->vmm.s.iLastGCRc;
2087#endif
2088 } while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
2089
2090 /*
2091 * Flush the logs.
2092 */
2093#ifdef LOG_ENABLED
2094 PRTLOGGERRC pLogger = pVM->vmm.s.pLoggerHC;
2095 if ( pLogger
2096 && pLogger->offScratch > 0)
2097 RTLogFlushGC(NULL, pLogger);
2098#endif
2099#ifdef VBOX_WITH_GC_AND_R0_RELEASE_LOG
2100 PRTLOGGERRC pRelLogger = pVM->vmm.s.pRelLoggerHC;
2101 if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
2102 RTLogFlushGC(RTLogRelDefaultInstance(), pRelLogger);
2103#endif
2104 if (rc == VERR_TRPM_PANIC || rc == VERR_TRPM_DONT_PANIC)
2105 VMMR3FatalDump(pVM, rc);
2106 if (rc != VINF_VMM_CALL_HOST)
2107 {
2108 Log2(("VMMR3CallGCV: returns %Vrc (cs:eip=%04x:%08x)\n", rc, CPUMGetGuestCS(pVM), CPUMGetGuestEIP(pVM)));
2109 return rc;
2110 }
2111 rc = vmmR3ServiceCallHostRequest(pVM);
2112 if (VBOX_FAILURE(rc))
2113 return rc;
2114 }
2115}
2116
2117
2118/**
2119 * Resumes executing hypervisor code when interrupted
2120 * by a queue flush or a debug event.
2121 *
2122 * @returns VBox status code.
2123 * @param pVM VM handle.
2124 */
2125VMMR3DECL(int) VMMR3ResumeHyper(PVM pVM)
2126{
2127 Log(("VMMR3ResumeHyper: eip=%VGv esp=%VGv\n", CPUMGetHyperEIP(pVM), CPUMGetHyperESP(pVM)));
2128
2129 /*
2130 * We hide log flushes (outer) and hypervisor interrupts (inner).
2131 */
2132 for (;;)
2133 {
2134 int rc;
2135 do
2136 {
2137#ifdef NO_SUPCALLR0VMM
2138 rc = VERR_GENERAL_FAILURE;
2139#else
2140 rc = SUPCallVMMR0Fast(pVM->pVMR0, VMMR0_DO_RAW_RUN);
2141 if (RT_LIKELY(rc == VINF_SUCCESS))
2142 rc = pVM->vmm.s.iLastGCRc;
2143#endif
2144 } while (rc == VINF_EM_RAW_INTERRUPT_HYPER);
2145
2146 /*
2147 * Flush the loggers,
2148 */
2149#ifdef LOG_ENABLED
2150 PRTLOGGERRC pLogger = pVM->vmm.s.pLoggerHC;
2151 if ( pLogger
2152 && pLogger->offScratch > 0)
2153 RTLogFlushGC(NULL, pLogger);
2154#endif
2155#ifdef VBOX_WITH_GC_AND_R0_RELEASE_LOG
2156 PRTLOGGERRC pRelLogger = pVM->vmm.s.pRelLoggerHC;
2157 if (RT_UNLIKELY(pRelLogger && pRelLogger->offScratch > 0))
2158 RTLogFlushGC(RTLogRelDefaultInstance(), pRelLogger);
2159#endif
2160 if (rc == VERR_TRPM_PANIC || rc == VERR_TRPM_DONT_PANIC)
2161 VMMR3FatalDump(pVM, rc);
2162 if (rc != VINF_VMM_CALL_HOST)
2163 {
2164 Log(("VMMR3ResumeHyper: returns %Vrc\n", rc));
2165 return rc;
2166 }
2167 rc = vmmR3ServiceCallHostRequest(pVM);
2168 if (VBOX_FAILURE(rc))
2169 return rc;
2170 }
2171}
2172
2173
2174/**
2175 * Service a call to the ring-3 host code.
2176 *
2177 * @returns VBox status code.
2178 * @param pVM VM handle.
2179 * @remark Careful with critsects.
2180 */
2181static int vmmR3ServiceCallHostRequest(PVM pVM)
2182{
2183 switch (pVM->vmm.s.enmCallHostOperation)
2184 {
2185 /*
2186 * Acquire the PDM lock.
2187 */
2188 case VMMCALLHOST_PDM_LOCK:
2189 {
2190 pVM->vmm.s.rcCallHost = PDMR3LockCall(pVM);
2191 break;
2192 }
2193
2194 /*
2195 * Flush a PDM queue.
2196 */
2197 case VMMCALLHOST_PDM_QUEUE_FLUSH:
2198 {
2199 PDMR3QueueFlushWorker(pVM, NULL);
2200 pVM->vmm.s.rcCallHost = VINF_SUCCESS;
2201 break;
2202 }
2203
2204 /*
2205 * Grow the PGM pool.
2206 */
2207 case VMMCALLHOST_PGM_POOL_GROW:
2208 {
2209 pVM->vmm.s.rcCallHost = PGMR3PoolGrow(pVM);
2210 break;
2211 }
2212
2213 /*
2214 * Maps an page allocation chunk into ring-3 so ring-0 can use it.
2215 */
2216 case VMMCALLHOST_PGM_MAP_CHUNK:
2217 {
2218 pVM->vmm.s.rcCallHost = PGMR3PhysChunkMap(pVM, pVM->vmm.s.u64CallHostArg);
2219 break;
2220 }
2221
2222 /*
2223 * Allocates more handy pages.
2224 */
2225 case VMMCALLHOST_PGM_ALLOCATE_HANDY_PAGES:
2226 {
2227 pVM->vmm.s.rcCallHost = PGMR3PhysAllocateHandyPages(pVM);
2228 break;
2229 }
2230#ifndef VBOX_WITH_NEW_PHYS_CODE
2231
2232 case VMMCALLHOST_PGM_RAM_GROW_RANGE:
2233 {
2234 const RTGCPHYS GCPhys = pVM->vmm.s.u64CallHostArg;
2235 pVM->vmm.s.rcCallHost = PGM3PhysGrowRange(pVM, &GCPhys);
2236 break;
2237 }
2238#endif
2239
2240 /*
2241 * Acquire the PGM lock.
2242 */
2243 case VMMCALLHOST_PGM_LOCK:
2244 {
2245 pVM->vmm.s.rcCallHost = PGMR3LockCall(pVM);
2246 break;
2247 }
2248
2249 /*
2250 * Flush REM handler notifications.
2251 */
2252 case VMMCALLHOST_REM_REPLAY_HANDLER_NOTIFICATIONS:
2253 {
2254 REMR3ReplayHandlerNotifications(pVM);
2255 break;
2256 }
2257
2258 /*
2259 * This is a noop. We just take this route to avoid unnecessary
2260 * tests in the loops.
2261 */
2262 case VMMCALLHOST_VMM_LOGGER_FLUSH:
2263 break;
2264
2265 /*
2266 * Set the VM error message.
2267 */
2268 case VMMCALLHOST_VM_SET_ERROR:
2269 VMR3SetErrorWorker(pVM);
2270 break;
2271
2272 /*
2273 * Set the VM runtime error message.
2274 */
2275 case VMMCALLHOST_VM_SET_RUNTIME_ERROR:
2276 VMR3SetRuntimeErrorWorker(pVM);
2277 break;
2278
2279 /*
2280 * Signal a ring 0 hypervisor assertion.
2281 * Cancel the longjmp operation that's in progress.
2282 */
2283 case VMMCALLHOST_VM_R0_HYPER_ASSERTION:
2284 pVM->vmm.s.enmCallHostOperation = VMMCALLHOST_INVALID;
2285 pVM->vmm.s.CallHostR0JmpBuf.fInRing3Call = false;
2286#ifdef RT_ARCH_X86
2287 pVM->vmm.s.CallHostR0JmpBuf.eip = 0;
2288#else
2289 pVM->vmm.s.CallHostR0JmpBuf.rip = 0;
2290#endif
2291 return VINF_EM_DBG_HYPER_ASSERTION;
2292
2293 default:
2294 AssertMsgFailed(("enmCallHostOperation=%d\n", pVM->vmm.s.enmCallHostOperation));
2295 return VERR_INTERNAL_ERROR;
2296 }
2297
2298 pVM->vmm.s.enmCallHostOperation = VMMCALLHOST_INVALID;
2299 return VINF_SUCCESS;
2300}
2301
2302
2303
2304/**
2305 * Structure to pass to DBGFR3Info() and for doing all other
2306 * output during fatal dump.
2307 */
2308typedef struct VMMR3FATALDUMPINFOHLP
2309{
2310 /** The helper core. */
2311 DBGFINFOHLP Core;
2312 /** The release logger instance. */
2313 PRTLOGGER pRelLogger;
2314 /** The saved release logger flags. */
2315 RTUINT fRelLoggerFlags;
2316 /** The logger instance. */
2317 PRTLOGGER pLogger;
2318 /** The saved logger flags. */
2319 RTUINT fLoggerFlags;
2320 /** The saved logger destination flags. */
2321 RTUINT fLoggerDestFlags;
2322 /** Whether to output to stderr or not. */
2323 bool fStdErr;
2324} VMMR3FATALDUMPINFOHLP, *PVMMR3FATALDUMPINFOHLP;
2325typedef const VMMR3FATALDUMPINFOHLP *PCVMMR3FATALDUMPINFOHLP;
2326
2327
2328/**
2329 * Print formatted string.
2330 *
2331 * @param pHlp Pointer to this structure.
2332 * @param pszFormat The format string.
2333 * @param ... Arguments.
2334 */
2335static DECLCALLBACK(void) vmmR3FatalDumpInfoHlp_pfnPrintf(PCDBGFINFOHLP pHlp, const char *pszFormat, ...)
2336{
2337 va_list args;
2338 va_start(args, pszFormat);
2339 pHlp->pfnPrintfV(pHlp, pszFormat, args);
2340 va_end(args);
2341}
2342
2343
2344/**
2345 * Print formatted string.
2346 *
2347 * @param pHlp Pointer to this structure.
2348 * @param pszFormat The format string.
2349 * @param args Argument list.
2350 */
2351static DECLCALLBACK(void) vmmR3FatalDumpInfoHlp_pfnPrintfV(PCDBGFINFOHLP pHlp, const char *pszFormat, va_list args)
2352{
2353 PCVMMR3FATALDUMPINFOHLP pMyHlp = (PCVMMR3FATALDUMPINFOHLP)pHlp;
2354
2355 if (pMyHlp->pRelLogger)
2356 {
2357 va_list args2;
2358 va_copy(args2, args);
2359 RTLogLoggerV(pMyHlp->pRelLogger, pszFormat, args2);
2360 va_end(args2);
2361 }
2362 if (pMyHlp->pLogger)
2363 {
2364 va_list args2;
2365 va_copy(args2, args);
2366 RTLogLoggerV(pMyHlp->pLogger, pszFormat, args);
2367 va_end(args2);
2368 }
2369 if (pMyHlp->fStdErr)
2370 {
2371 va_list args2;
2372 va_copy(args2, args);
2373 RTStrmPrintfV(g_pStdErr, pszFormat, args);
2374 va_end(args2);
2375 }
2376}
2377
2378
2379/**
2380 * Initializes the fatal dump output helper.
2381 *
2382 * @param pHlp The structure to initialize.
2383 */
2384static void vmmR3FatalDumpInfoHlpInit(PVMMR3FATALDUMPINFOHLP pHlp)
2385{
2386 memset(pHlp, 0, sizeof(*pHlp));
2387
2388 pHlp->Core.pfnPrintf = vmmR3FatalDumpInfoHlp_pfnPrintf;
2389 pHlp->Core.pfnPrintfV = vmmR3FatalDumpInfoHlp_pfnPrintfV;
2390
2391 /*
2392 * The loggers.
2393 */
2394 pHlp->pRelLogger = RTLogRelDefaultInstance();
2395#ifndef LOG_ENABLED
2396 if (!pHlp->pRelLogger)
2397#endif
2398 pHlp->pLogger = RTLogDefaultInstance();
2399
2400 if (pHlp->pRelLogger)
2401 {
2402 pHlp->fRelLoggerFlags = pHlp->pRelLogger->fFlags;
2403 pHlp->pRelLogger->fFlags &= ~(RTLOGFLAGS_BUFFERED | RTLOGFLAGS_DISABLED);
2404 }
2405
2406 if (pHlp->pLogger)
2407 {
2408 pHlp->fLoggerFlags = pHlp->pLogger->fFlags;
2409 pHlp->fLoggerDestFlags = pHlp->pLogger->fDestFlags;
2410 pHlp->pLogger->fFlags &= ~(RTLOGFLAGS_BUFFERED | RTLOGFLAGS_DISABLED);
2411#ifndef DEBUG_sandervl
2412 pHlp->pLogger->fDestFlags |= RTLOGDEST_DEBUGGER;
2413#endif
2414 }
2415
2416 /*
2417 * Check if we need write to stderr.
2418 */
2419#ifdef DEBUG_sandervl
2420 pHlp->fStdErr = false; /* takes too long to display here */
2421#else
2422 pHlp->fStdErr = (!pHlp->pRelLogger || !(pHlp->pRelLogger->fDestFlags & (RTLOGDEST_STDOUT | RTLOGDEST_STDERR)))
2423 && (!pHlp->pLogger || !(pHlp->pLogger->fDestFlags & (RTLOGDEST_STDOUT | RTLOGDEST_STDERR)));
2424#endif
2425}
2426
2427
2428/**
2429 * Deletes the fatal dump output helper.
2430 *
2431 * @param pHlp The structure to delete.
2432 */
2433static void vmmR3FatalDumpInfoHlpDelete(PVMMR3FATALDUMPINFOHLP pHlp)
2434{
2435 if (pHlp->pRelLogger)
2436 {
2437 RTLogFlush(pHlp->pRelLogger);
2438 pHlp->pRelLogger->fFlags = pHlp->fRelLoggerFlags;
2439 }
2440
2441 if (pHlp->pLogger)
2442 {
2443 RTLogFlush(pHlp->pLogger);
2444 pHlp->pLogger->fFlags = pHlp->fLoggerFlags;
2445 pHlp->pLogger->fDestFlags = pHlp->fLoggerDestFlags;
2446 }
2447}
2448
2449
2450/**
2451 * Dumps the VM state on a fatal error.
2452 *
2453 * @param pVM VM Handle.
2454 * @param rcErr VBox status code.
2455 */
2456VMMR3DECL(void) VMMR3FatalDump(PVM pVM, int rcErr)
2457{
2458 /*
2459 * Create our output helper and sync it with the log settings.
2460 * This helper will be used for all the output.
2461 */
2462 VMMR3FATALDUMPINFOHLP Hlp;
2463 PCDBGFINFOHLP pHlp = &Hlp.Core;
2464 vmmR3FatalDumpInfoHlpInit(&Hlp);
2465
2466 /*
2467 * Header.
2468 */
2469 pHlp->pfnPrintf(pHlp,
2470 "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n"
2471 "!!\n"
2472 "!! Guru Meditation %d (%Vrc)\n"
2473 "!!\n",
2474 rcErr, rcErr);
2475
2476 /*
2477 * Continue according to context.
2478 */
2479 bool fDoneHyper = false;
2480 switch (rcErr)
2481 {
2482 /*
2483 * Hyper visor errors.
2484 */
2485 case VINF_EM_DBG_HYPER_ASSERTION:
2486 pHlp->pfnPrintf(pHlp, "%s%s!!\n", VMMR3GetGCAssertMsg1(pVM), VMMR3GetGCAssertMsg2(pVM));
2487 /* fall thru */
2488 case VERR_TRPM_DONT_PANIC:
2489 case VERR_TRPM_PANIC:
2490 case VINF_EM_RAW_STALE_SELECTOR:
2491 case VINF_EM_RAW_IRET_TRAP:
2492 case VINF_EM_DBG_HYPER_BREAKPOINT:
2493 case VINF_EM_DBG_HYPER_STEPPED:
2494 {
2495 /* Trap? */
2496 uint32_t uEIP = CPUMGetHyperEIP(pVM);
2497 TRPMEVENT enmType;
2498 uint8_t u8TrapNo = 0xce;
2499 RTGCUINT uErrorCode = 0xdeadface;
2500 RTGCUINTPTR uCR2 = 0xdeadface;
2501 int rc2 = TRPMQueryTrapAll(pVM, &u8TrapNo, &enmType, &uErrorCode, &uCR2);
2502 if (VBOX_SUCCESS(rc2))
2503 pHlp->pfnPrintf(pHlp,
2504 "!! TRAP=%02x ERRCD=%VGv CR2=%VGv EIP=%VGv Type=%d\n",
2505 u8TrapNo, uErrorCode, uCR2, uEIP, enmType);
2506 else
2507 pHlp->pfnPrintf(pHlp,
2508 "!! EIP=%VGv NOTRAP\n",
2509 uEIP);
2510
2511 /*
2512 * Try figure out where eip is.
2513 */
2514 /** @todo make query call for core code or move this function to VMM. */
2515 /* core code? */
2516 //if (uEIP - (RTGCUINTPTR)pVM->vmm.s.pvGCCoreCode < pVM->vmm.s.cbCoreCode)
2517 // pHlp->pfnPrintf(pHlp,
2518 // "!! EIP is in CoreCode, offset %#x\n",
2519 // uEIP - (RTGCUINTPTR)pVM->vmm.s.pvGCCoreCode);
2520 //else
2521 { /* ask PDM */
2522 /** @todo ask DBGFR3Sym later. */
2523 char szModName[64];
2524 RTGCPTR GCPtrMod;
2525 char szNearSym1[260];
2526 RTGCPTR GCPtrNearSym1;
2527 char szNearSym2[260];
2528 RTGCPTR GCPtrNearSym2;
2529 int rc = PDMR3QueryModFromEIP(pVM, uEIP,
2530 &szModName[0], sizeof(szModName), &GCPtrMod,
2531 &szNearSym1[0], sizeof(szNearSym1), &GCPtrNearSym1,
2532 &szNearSym2[0], sizeof(szNearSym2), &GCPtrNearSym2);
2533 if (VBOX_SUCCESS(rc))
2534 {
2535 pHlp->pfnPrintf(pHlp,
2536 "!! EIP in %s (%VGv) at rva %x near symbols:\n"
2537 "!! %VGv rva %VGv off %08x %s\n"
2538 "!! %VGv rva %VGv off -%08x %s\n",
2539 szModName, GCPtrMod, (unsigned)(uEIP - GCPtrMod),
2540 GCPtrNearSym1, GCPtrNearSym1 - GCPtrMod, (unsigned)(uEIP - GCPtrNearSym1), szNearSym1,
2541 GCPtrNearSym2, GCPtrNearSym2 - GCPtrMod, (unsigned)(GCPtrNearSym2 - uEIP), szNearSym2);
2542 }
2543 else
2544 pHlp->pfnPrintf(pHlp,
2545 "!! EIP is not in any code known to VMM!\n");
2546 }
2547
2548 /* Disassemble the instruction. */
2549 char szInstr[256];
2550 rc2 = DBGFR3DisasInstrEx(pVM, 0, 0, DBGF_DISAS_FLAGS_CURRENT_HYPER, &szInstr[0], sizeof(szInstr), NULL);
2551 if (VBOX_SUCCESS(rc2))
2552 pHlp->pfnPrintf(pHlp,
2553 "!! %s\n", szInstr);
2554
2555 /* Dump the hypervisor cpu state. */
2556 pHlp->pfnPrintf(pHlp,
2557 "!!\n"
2558 "!!\n"
2559 "!!\n");
2560 rc2 = DBGFR3Info(pVM, "cpumhyper", "verbose", pHlp);
2561 fDoneHyper = true;
2562
2563 /* Callstack. */
2564 DBGFSTACKFRAME Frame = {0};
2565 rc2 = DBGFR3StackWalkBeginHyper(pVM, &Frame);
2566 if (VBOX_SUCCESS(rc2))
2567 {
2568 pHlp->pfnPrintf(pHlp,
2569 "!!\n"
2570 "!! Call Stack:\n"
2571 "!!\n"
2572 "EBP Ret EBP Ret CS:EIP Arg0 Arg1 Arg2 Arg3 CS:EIP Symbol [line]\n");
2573 do
2574 {
2575 pHlp->pfnPrintf(pHlp,
2576 "%08RX32 %08RX32 %04RX32:%08RX32 %08RX32 %08RX32 %08RX32 %08RX32",
2577 (uint32_t)Frame.AddrFrame.off,
2578 (uint32_t)Frame.AddrReturnFrame.off,
2579 (uint32_t)Frame.AddrReturnPC.Sel,
2580 (uint32_t)Frame.AddrReturnPC.off,
2581 Frame.Args.au32[0],
2582 Frame.Args.au32[1],
2583 Frame.Args.au32[2],
2584 Frame.Args.au32[3]);
2585 pHlp->pfnPrintf(pHlp, " %RTsel:%08RGv", Frame.AddrPC.Sel, Frame.AddrPC.off);
2586 if (Frame.pSymPC)
2587 {
2588 RTGCINTPTR offDisp = Frame.AddrPC.FlatPtr - Frame.pSymPC->Value;
2589 if (offDisp > 0)
2590 pHlp->pfnPrintf(pHlp, " %s+%llx", Frame.pSymPC->szName, (int64_t)offDisp);
2591 else if (offDisp < 0)
2592 pHlp->pfnPrintf(pHlp, " %s-%llx", Frame.pSymPC->szName, -(int64_t)offDisp);
2593 else
2594 pHlp->pfnPrintf(pHlp, " %s", Frame.pSymPC->szName);
2595 }
2596 if (Frame.pLinePC)
2597 pHlp->pfnPrintf(pHlp, " [%s @ 0i%d]", Frame.pLinePC->szFilename, Frame.pLinePC->uLineNo);
2598 pHlp->pfnPrintf(pHlp, "\n");
2599
2600 /* next */
2601 rc2 = DBGFR3StackWalkNext(pVM, &Frame);
2602 } while (VBOX_SUCCESS(rc2));
2603 DBGFR3StackWalkEnd(pVM, &Frame);
2604 }
2605
2606 /* raw stack */
2607 pHlp->pfnPrintf(pHlp,
2608 "!!\n"
2609 "!! Raw stack (mind the direction).\n"
2610 "!!\n"
2611 "%.*Vhxd\n",
2612 VMM_STACK_SIZE, (char *)pVM->vmm.s.pbHCStack);
2613 break;
2614 }
2615
2616 default:
2617 {
2618 break;
2619 }
2620
2621 } /* switch (rcErr) */
2622
2623
2624 /*
2625 * Generic info dumper loop.
2626 */
2627 static struct
2628 {
2629 const char *pszInfo;
2630 const char *pszArgs;
2631 } const aInfo[] =
2632 {
2633 { "mappings", NULL },
2634 { "hma", NULL },
2635 { "cpumguest", "verbose" },
2636 { "cpumguestinstr", "verbose" },
2637 { "cpumhyper", "verbose" },
2638 { "cpumhost", "verbose" },
2639 { "mode", "all" },
2640 { "cpuid", "verbose" },
2641 { "gdt", NULL },
2642 { "ldt", NULL },
2643 //{ "tss", NULL },
2644 { "ioport", NULL },
2645 { "mmio", NULL },
2646 { "phys", NULL },
2647 //{ "pgmpd", NULL }, - doesn't always work at init time...
2648 { "timers", NULL },
2649 { "activetimers", NULL },
2650 { "handlers", "phys virt hyper stats" },
2651 { "cfgm", NULL },
2652 };
2653 for (unsigned i = 0; i < ELEMENTS(aInfo); i++)
2654 {
2655 if (fDoneHyper && !strcmp(aInfo[i].pszInfo, "cpumhyper"))
2656 continue;
2657 pHlp->pfnPrintf(pHlp,
2658 "!!\n"
2659 "!! {%s, %s}\n"
2660 "!!\n",
2661 aInfo[i].pszInfo, aInfo[i].pszArgs);
2662 DBGFR3Info(pVM, aInfo[i].pszInfo, aInfo[i].pszArgs, pHlp);
2663 }
2664
2665 /* done */
2666 pHlp->pfnPrintf(pHlp,
2667 "!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!\n");
2668
2669
2670 /*
2671 * Delete the output instance (flushing and restoring of flags).
2672 */
2673 vmmR3FatalDumpInfoHlpDelete(&Hlp);
2674}
2675
2676
2677
2678/**
2679 * Displays the Force action Flags.
2680 *
2681 * @param pVM The VM handle.
2682 * @param pHlp The output helpers.
2683 * @param pszArgs The additional arguments (ignored).
2684 */
2685static DECLCALLBACK(void) vmmR3InfoFF(PVM pVM, PCDBGFINFOHLP pHlp, const char *pszArgs)
2686{
2687 const uint32_t fForcedActions = pVM->fForcedActions;
2688
2689 pHlp->pfnPrintf(pHlp, "Forced action Flags: %#RX32", fForcedActions);
2690
2691 /* show the flag mnemonics */
2692 int c = 0;
2693 uint32_t f = fForcedActions;
2694#define PRINT_FLAG(flag) do { \
2695 if (f & (flag)) \
2696 { \
2697 static const char *s_psz = #flag; \
2698 if (!(c % 6)) \
2699 pHlp->pfnPrintf(pHlp, "%s\n %s", c ? "," : "", s_psz + 6); \
2700 else \
2701 pHlp->pfnPrintf(pHlp, ", %s", s_psz + 6); \
2702 c++; \
2703 f &= ~(flag); \
2704 } \
2705 } while (0)
2706 PRINT_FLAG(VM_FF_INTERRUPT_APIC);
2707 PRINT_FLAG(VM_FF_INTERRUPT_PIC);
2708 PRINT_FLAG(VM_FF_TIMER);
2709 PRINT_FLAG(VM_FF_PDM_QUEUES);
2710 PRINT_FLAG(VM_FF_PDM_DMA);
2711 PRINT_FLAG(VM_FF_PDM_CRITSECT);
2712 PRINT_FLAG(VM_FF_DBGF);
2713 PRINT_FLAG(VM_FF_REQUEST);
2714 PRINT_FLAG(VM_FF_TERMINATE);
2715 PRINT_FLAG(VM_FF_RESET);
2716 PRINT_FLAG(VM_FF_PGM_SYNC_CR3);
2717 PRINT_FLAG(VM_FF_PGM_SYNC_CR3_NON_GLOBAL);
2718 PRINT_FLAG(VM_FF_TRPM_SYNC_IDT);
2719 PRINT_FLAG(VM_FF_SELM_SYNC_TSS);
2720 PRINT_FLAG(VM_FF_SELM_SYNC_GDT);
2721 PRINT_FLAG(VM_FF_SELM_SYNC_LDT);
2722 PRINT_FLAG(VM_FF_INHIBIT_INTERRUPTS);
2723 PRINT_FLAG(VM_FF_CSAM_SCAN_PAGE);
2724 PRINT_FLAG(VM_FF_CSAM_PENDING_ACTION);
2725 PRINT_FLAG(VM_FF_TO_R3);
2726 PRINT_FLAG(VM_FF_DEBUG_SUSPEND);
2727 if (f)
2728 pHlp->pfnPrintf(pHlp, "%s\n Unknown bits: %#RX32\n", c ? "," : "", f);
2729 else
2730 pHlp->pfnPrintf(pHlp, "\n");
2731#undef PRINT_FLAG
2732
2733 /* the groups */
2734 c = 0;
2735#define PRINT_GROUP(grp) do { \
2736 if (fForcedActions & (grp)) \
2737 { \
2738 static const char *s_psz = #grp; \
2739 if (!(c % 5)) \
2740 pHlp->pfnPrintf(pHlp, "%s %s", c ? ",\n" : "Groups:\n", s_psz + 6); \
2741 else \
2742 pHlp->pfnPrintf(pHlp, ", %s", s_psz + 6); \
2743 c++; \
2744 } \
2745 } while (0)
2746 PRINT_GROUP(VM_FF_EXTERNAL_SUSPENDED_MASK);
2747 PRINT_GROUP(VM_FF_EXTERNAL_HALTED_MASK);
2748 PRINT_GROUP(VM_FF_HIGH_PRIORITY_PRE_MASK);
2749 PRINT_GROUP(VM_FF_HIGH_PRIORITY_PRE_RAW_MASK);
2750 PRINT_GROUP(VM_FF_HIGH_PRIORITY_POST_MASK);
2751 PRINT_GROUP(VM_FF_NORMAL_PRIORITY_POST_MASK);
2752 PRINT_GROUP(VM_FF_NORMAL_PRIORITY_MASK);
2753 PRINT_GROUP(VM_FF_RESUME_GUEST_MASK);
2754 PRINT_GROUP(VM_FF_ALL_BUT_RAW_MASK);
2755 if (c)
2756 pHlp->pfnPrintf(pHlp, "\n");
2757#undef PRINT_GROUP
2758}
2759
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