EMHandleRCTmpl.h@ 46175

Last change on this file since 46175 was 45693, checked in by vboxsync, 12 years ago
VMM: Introducing VINF_EM_TRIPLE_FAULT status code for triple-fault conditions in HM, to result in a guru meditation.
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File size: 12.3 KB

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1	/* $Id: EMHandleRCTmpl.h 45693 2013-04-24 11:32:42Z vboxsync $ */
2	/** @file
3	* EM - emR3[Raw\|Hm]HandleRC template.
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	#ifndef ___EMHandleRCTmpl_h
19	#define ___EMHandleRCTmpl_h
20
21	/**
22	* Process a subset of the raw-mode and hm return codes.
23	*
24	* Since we have to share this with raw-mode single stepping, this inline
25	* function has been created to avoid code duplication.
26	*
27	* @returns VINF_SUCCESS if it's ok to continue raw mode.
28	* @returns VBox status code to return to the EM main loop.
29	*
30	* @param pVM Pointer to the VM.
31	* @param pVCpu Pointer to the VMCPU.
32	* @param rc The return code.
33	* @param pCtx Pointer to the guest CPU context.
34	*/
35	#ifdef EMHANDLERC_WITH_PATM
36	int emR3RawHandleRC(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx, int rc)
37	#elif defined(EMHANDLERC_WITH_HM)
38	int emR3HmHandleRC(PVM pVM, PVMCPU pVCpu, PCPUMCTX pCtx, int rc)
39	#endif
40	{
41	switch (rc)
42	{
43	/*
44	* Common & simple ones.
45	*/
46	case VINF_SUCCESS:
47	break;
48	case VINF_EM_RESCHEDULE_RAW:
49	case VINF_EM_RESCHEDULE_HM:
50	case VINF_EM_RAW_INTERRUPT:
51	case VINF_EM_RAW_TO_R3:
52	case VINF_EM_RAW_TIMER_PENDING:
53	case VINF_EM_PENDING_REQUEST:
54	rc = VINF_SUCCESS;
55	break;
56
57	#ifdef EMHANDLERC_WITH_PATM
58	/*
59	* Privileged instruction.
60	*/
61	case VINF_EM_RAW_EXCEPTION_PRIVILEGED:
62	case VINF_PATM_PATCH_TRAP_GP:
63	rc = emR3RawPrivileged(pVM, pVCpu);
64	break;
65
66	case VINF_EM_RAW_GUEST_TRAP:
67	/*
68	* Got a trap which needs dispatching.
69	*/
70	if (PATMR3IsInsidePatchJump(pVM, pCtx->eip, NULL))
71	{
72	AssertReleaseMsgFailed(("FATAL ERROR: executing random instruction inside generated patch jump %08X\n", CPUMGetGuestEIP(pVCpu)));
73	rc = VERR_EM_RAW_PATCH_CONFLICT;
74	break;
75	}
76	rc = emR3RawGuestTrap(pVM, pVCpu);
77	break;
78
79	/*
80	* Trap in patch code.
81	*/
82	case VINF_PATM_PATCH_TRAP_PF:
83	case VINF_PATM_PATCH_INT3:
84	rc = emR3PatchTrap(pVM, pVCpu, pCtx, rc);
85	break;
86
87	case VINF_PATM_DUPLICATE_FUNCTION:
88	Assert(PATMIsPatchGCAddr(pVM, pCtx->eip));
89	rc = PATMR3DuplicateFunctionRequest(pVM, pCtx);
90	AssertRC(rc);
91	rc = VINF_SUCCESS;
92	break;
93
94	case VINF_PATM_CHECK_PATCH_PAGE:
95	rc = PATMR3HandleMonitoredPage(pVM);
96	AssertRC(rc);
97	rc = VINF_SUCCESS;
98	break;
99
100	/*
101	* Patch manager.
102	*/
103	case VERR_EM_RAW_PATCH_CONFLICT:
104	AssertReleaseMsgFailed(("%Rrc handling is not yet implemented\n", rc));
105	break;
106	#endif /* EMHANDLERC_WITH_PATM */
107
108	#ifdef EMHANDLERC_WITH_PATM
109	/*
110	* Memory mapped I/O access - attempt to patch the instruction
111	*/
112	case VINF_PATM_HC_MMIO_PATCH_READ:
113	rc = PATMR3InstallPatch(pVM, SELMToFlat(pVM, DISSELREG_CS, CPUMCTX2CORE(pCtx), pCtx->eip),
114	PATMFL_MMIO_ACCESS
115	\| (CPUMGetGuestCodeBits(pVCpu) == 32 ? PATMFL_CODE32 : 0));
116	if (RT_FAILURE(rc))
117	rc = emR3ExecuteInstruction(pVM, pVCpu, "MMIO");
118	break;
119
120	case VINF_PATM_HC_MMIO_PATCH_WRITE:
121	AssertFailed(); /* not yet implemented. */
122	rc = emR3ExecuteInstruction(pVM, pVCpu, "MMIO");
123	break;
124	#endif /* EMHANDLERC_WITH_PATM */
125
126	/*
127	* Conflict or out of page tables.
128	*
129	* VM_FF_PGM_SYNC_CR3 is set by the hypervisor and all we need to
130	* do here is to execute the pending forced actions.
131	*/
132	case VINF_PGM_SYNC_CR3:
133	AssertMsg(VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_PGM_SYNC_CR3 \| VMCPU_FF_PGM_SYNC_CR3_NON_GLOBAL),
134	("VINF_PGM_SYNC_CR3 and no VMCPU_FF_PGM_SYNC_CR3*!\n"));
135	rc = VINF_SUCCESS;
136	break;
137
138	/*
139	* PGM pool flush pending (guest SMP only).
140	*/
141	/** @todo jumping back and forth between ring 0 and 3 can burn a lot of cycles
142	* if the EMT thread that's supposed to handle the flush is currently not active
143	* (e.g. waiting to be scheduled) -> fix this properly!
144	*
145	* bird: Since the clearing is global and done via a rendezvous any CPU can do
146	* it. They would have to choose who to call VMMR3EmtRendezvous and send
147	* the rest to VMMR3EmtRendezvousFF ... Hmm ... that's not going to work
148	* all that well since the latter will race the setup done by the
149	* first. Guess that means we need some new magic in that area for
150	* handling this case. :/
151	*/
152	case VINF_PGM_POOL_FLUSH_PENDING:
153	rc = VINF_SUCCESS;
154	break;
155
156	/*
157	* Paging mode change.
158	*/
159	case VINF_PGM_CHANGE_MODE:
160	rc = PGMChangeMode(pVCpu, pCtx->cr0, pCtx->cr4, pCtx->msrEFER);
161	if (rc == VINF_SUCCESS)
162	rc = VINF_EM_RESCHEDULE;
163	AssertMsg(RT_FAILURE(rc) \|\| (rc >= VINF_EM_FIRST && rc <= VINF_EM_LAST), ("%Rrc\n", rc));
164	break;
165
166	#ifdef EMHANDLERC_WITH_PATM
167	/*
168	* CSAM wants to perform a task in ring-3. It has set an FF action flag.
169	*/
170	case VINF_CSAM_PENDING_ACTION:
171	rc = VINF_SUCCESS;
172	break;
173
174	/*
175	* Invoked Interrupt gate - must directly (!) go to the recompiler.
176	*/
177	case VINF_EM_RAW_INTERRUPT_PENDING:
178	case VINF_EM_RAW_RING_SWITCH_INT:
179	Assert(TRPMHasTrap(pVCpu));
180	Assert(!PATMIsPatchGCAddr(pVM, pCtx->eip));
181
182	if (TRPMHasTrap(pVCpu))
183	{
184	/* If the guest gate is marked unpatched, then we will check again if we can patch it. */
185	uint8_t u8Interrupt = TRPMGetTrapNo(pVCpu);
186	if (TRPMR3GetGuestTrapHandler(pVM, u8Interrupt) == TRPM_INVALID_HANDLER)
187	{
188	CSAMR3CheckGates(pVM, u8Interrupt, 1);
189	Log(("emR3RawHandleRC: recheck gate %x -> valid=%d\n", u8Interrupt, TRPMR3GetGuestTrapHandler(pVM, u8Interrupt) != TRPM_INVALID_HANDLER));
190	/* Note: If it was successful, then we could go back to raw mode, but let's keep things simple for now. */
191	}
192	}
193	rc = VINF_EM_RESCHEDULE_REM;
194	break;
195
196	/*
197	* Other ring switch types.
198	*/
199	case VINF_EM_RAW_RING_SWITCH:
200	rc = emR3RawRingSwitch(pVM, pVCpu);
201	break;
202	#endif /* EMHANDLERC_WITH_PATM */
203
204	/*
205	* I/O Port access - emulate the instruction.
206	*/
207	case VINF_IOM_R3_IOPORT_READ:
208	case VINF_IOM_R3_IOPORT_WRITE:
209	rc = emR3ExecuteIOInstruction(pVM, pVCpu);
210	break;
211
212	/*
213	* Memory mapped I/O access - emulate the instruction.
214	*/
215	case VINF_IOM_R3_MMIO_READ:
216	case VINF_IOM_R3_MMIO_WRITE:
217	case VINF_IOM_R3_MMIO_READ_WRITE:
218	rc = emR3ExecuteInstruction(pVM, pVCpu, "MMIO");
219	break;
220
221	#ifdef EMHANDLERC_WITH_HM
222	/*
223	* (MM)IO intensive code block detected; fall back to the recompiler for better performance
224	*/
225	case VINF_EM_RAW_EMULATE_IO_BLOCK:
226	rc = HMR3EmulateIoBlock(pVM, pCtx);
227	break;
228
229	case VINF_EM_HM_PATCH_TPR_INSTR:
230	rc = HMR3PatchTprInstr(pVM, pVCpu, pCtx);
231	break;
232	#endif
233
234	#ifdef EMHANDLERC_WITH_PATM
235	/*
236	* Execute instruction.
237	*/
238	case VINF_EM_RAW_EMULATE_INSTR_LDT_FAULT:
239	rc = emR3ExecuteInstruction(pVM, pVCpu, "LDT FAULT: ");
240	break;
241	case VINF_EM_RAW_EMULATE_INSTR_GDT_FAULT:
242	rc = emR3ExecuteInstruction(pVM, pVCpu, "GDT FAULT: ");
243	break;
244	case VINF_EM_RAW_EMULATE_INSTR_IDT_FAULT:
245	rc = emR3ExecuteInstruction(pVM, pVCpu, "IDT FAULT: ");
246	break;
247	case VINF_EM_RAW_EMULATE_INSTR_TSS_FAULT:
248	rc = emR3ExecuteInstruction(pVM, pVCpu, "TSS FAULT: ");
249	break;
250	case VINF_EM_RAW_EMULATE_INSTR_PD_FAULT:
251	rc = emR3ExecuteInstruction(pVM, pVCpu, "PD FAULT: ");
252	break;
253	case VINF_EM_RAW_EMULATE_INSTR_HLT:
254	/** @todo skip instruction and go directly to the halt state. (see REM for implementation details) */
255	rc = emR3RawPrivileged(pVM, pVCpu);
256	break;
257	#endif
258
259	#ifdef EMHANDLERC_WITH_PATM
260	case VINF_PATM_PENDING_IRQ_AFTER_IRET:
261	rc = emR3ExecuteInstruction(pVM, pVCpu, "EMUL: ", VINF_PATM_PENDING_IRQ_AFTER_IRET);
262	break;
263
264	case VINF_PATCH_EMULATE_INSTR:
265	#else
266	case VINF_EM_RAW_GUEST_TRAP:
267	#endif
268	case VINF_EM_RAW_EMULATE_INSTR:
269	rc = emR3ExecuteInstruction(pVM, pVCpu, "EMUL: ");
270	break;
271
272	#ifdef EMHANDLERC_WITH_PATM
273	/*
274	* Stale selector and iret traps => REM.
275	*/
276	case VINF_EM_RAW_STALE_SELECTOR:
277	case VINF_EM_RAW_IRET_TRAP:
278	/* We will not go to the recompiler if EIP points to patch code. */
279	if (PATMIsPatchGCAddr(pVM, pCtx->eip))
280	{
281	pCtx->eip = PATMR3PatchToGCPtr(pVM, (RTGCPTR)pCtx->eip, 0);
282	}
283	LogFlow(("emR3RawHandleRC: %Rrc -> %Rrc\n", rc, VINF_EM_RESCHEDULE_REM));
284	rc = VINF_EM_RESCHEDULE_REM;
285	break;
286
287	/*
288	* Conflict in GDT, resync and continue.
289	*/
290	case VINF_SELM_SYNC_GDT:
291	AssertMsg(VMCPU_FF_ISPENDING(pVCpu, VMCPU_FF_SELM_SYNC_GDT \| VMCPU_FF_SELM_SYNC_LDT \| VMCPU_FF_SELM_SYNC_TSS),
292	("VINF_SELM_SYNC_GDT without VMCPU_FF_SELM_SYNC_GDT/LDT/TSS!\n"));
293	rc = VINF_SUCCESS;
294	break;
295	#endif
296
297	/*
298	* Up a level.
299	*/
300	case VINF_EM_TERMINATE:
301	case VINF_EM_OFF:
302	case VINF_EM_RESET:
303	case VINF_EM_SUSPEND:
304	case VINF_EM_HALT:
305	case VINF_EM_RESUME:
306	case VINF_EM_NO_MEMORY:
307	case VINF_EM_RESCHEDULE:
308	case VINF_EM_RESCHEDULE_REM:
309	case VINF_EM_WAIT_SIPI:
310	break;
311
312	/*
313	* Up a level and invoke the debugger.
314	*/
315	case VINF_EM_DBG_STEPPED:
316	case VINF_EM_DBG_BREAKPOINT:
317	case VINF_EM_DBG_STEP:
318	case VINF_EM_DBG_HYPER_BREAKPOINT:
319	case VINF_EM_DBG_HYPER_STEPPED:
320	case VINF_EM_DBG_HYPER_ASSERTION:
321	case VINF_EM_DBG_STOP:
322	break;
323
324	/*
325	* Up a level, dump and debug.
326	*/
327	case VERR_TRPM_DONT_PANIC:
328	case VERR_TRPM_PANIC:
329	case VERR_VMM_RING0_ASSERTION:
330	case VINF_EM_TRIPLE_FAULT:
331	case VERR_VMM_HYPER_CR3_MISMATCH:
332	case VERR_VMM_RING3_CALL_DISABLED:
333	case VERR_IEM_INSTR_NOT_IMPLEMENTED:
334	case VERR_IEM_ASPECT_NOT_IMPLEMENTED:
335	break;
336
337	#ifdef EMHANDLERC_WITH_HM
338	/*
339	* Up a level, after Hm have done some release logging.
340	*/
341	case VERR_VMX_INVALID_VMCS_FIELD:
342	case VERR_VMX_INVALID_VMCS_PTR:
343	case VERR_VMX_INVALID_VMXON_PTR:
344	case VERR_VMX_UNEXPECTED_INTERRUPTION_EXIT_CODE:
345	case VERR_VMX_UNEXPECTED_EXCEPTION:
346	case VERR_VMX_UNEXPECTED_EXIT_CODE:
347	case VERR_VMX_INVALID_GUEST_STATE:
348	case VERR_VMX_UNABLE_TO_START_VM:
349	HMR3CheckError(pVM, rc);
350	break;
351
352	/* Up a level; fatal */
353	case VERR_VMX_IN_VMX_ROOT_MODE:
354	case VERR_SVM_IN_USE:
355	case VERR_SVM_UNABLE_TO_START_VM:
356	break;
357	#endif
358
359	/*
360	* Anything which is not known to us means an internal error
361	* and the termination of the VM!
362	*/
363	default:
364	AssertMsgFailed(("Unknown GC return code: %Rra\n", rc));
365	break;
366	}
367	return rc;
368	}
369
370	#endif
371

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source: vbox/trunk/src/VBox/VMM/include/EMHandleRCTmpl.h@ 46175

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