SELMAll.cpp@ 48749

Last change on this file since 48749 was 45786, checked in by vboxsync, 12 years ago
Move HMRCA.asm into the switcher code so we don't need VMMRC.rc.
Property svn:eol-style set to `native` Property svn:keywords set to `Id Revision`
File size: 35.8 KB

Line
1	/* $Id: SELMAll.cpp 45786 2013-04-26 22:35:59Z vboxsync $ */
2	/** @file
3	* SELM All contexts.
4	*/
5
6	/*
7	* Copyright (C) 2006-2012 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
19	/*******************************************************************************
20	* Header Files *
21	*******************************************************************************/
22	#define LOG_GROUP LOG_GROUP_SELM
23	#include <VBox/vmm/selm.h>
24	#include <VBox/vmm/stam.h>
25	#include <VBox/vmm/em.h>
26	#include <VBox/vmm/mm.h>
27	#include <VBox/vmm/hm.h>
28	#include <VBox/vmm/pgm.h>
29	#include <VBox/vmm/hm.h>
30	#include "SELMInternal.h"
31	#include <VBox/vmm/vm.h>
32	#include <VBox/err.h>
33	#include <VBox/param.h>
34	#include <iprt/assert.h>
35	#include <VBox/vmm/vmm.h>
36	#include <iprt/x86.h>
37
38	#include "SELMInline.h"
39
40
41	/*******************************************************************************
42	* Global Variables *
43	*******************************************************************************/
44	#if defined(LOG_ENABLED) && defined(VBOX_WITH_RAW_MODE_NOT_R0)
45	/** Segment register names. */
46	static char const g_aszSRegNms[X86_SREG_COUNT][4] = { "ES", "CS", "SS", "DS", "FS", "GS" };
47	#endif
48
49
50
51	#ifdef VBOX_WITH_RAW_MODE_NOT_R0
52	/**
53	* Converts a GC selector based address to a flat address.
54	*
55	* No limit checks are done. Use the SELMToFlat() or SELMValidate() functions
56	* for that.
57	*
58	* @returns Flat address.
59	* @param pVM Pointer to the VM.
60	* @param Sel Selector part.
61	* @param Addr Address part.
62	* @remarks Don't use when in long mode.
63	*/
64	VMMDECL(RTGCPTR) SELMToFlatBySel(PVM pVM, RTSEL Sel, RTGCPTR Addr)
65	{
66	Assert(pVM->cCpus == 1 && !CPUMIsGuestInLongMode(VMMGetCpu(pVM))); /* DON'T USE! */
67	Assert(!HMIsEnabled(pVM));
68
69	/** @todo check the limit. */
70	X86DESC Desc;
71	if (!(Sel & X86_SEL_LDT))
72	Desc = pVM->selm.s.CTX_SUFF(paGdt)[Sel >> X86_SEL_SHIFT];
73	else
74	{
75	/** @todo handle LDT pages not present! */
76	PX86DESC paLDT = (PX86DESC)((char *)pVM->selm.s.CTX_SUFF(pvLdt) + pVM->selm.s.offLdtHyper);
77	Desc = paLDT[Sel >> X86_SEL_SHIFT];
78	}
79
80	return (RTGCPTR)(((RTGCUINTPTR)Addr + X86DESC_BASE(&Desc)) & 0xffffffff);
81	}
82	#endif /* VBOX_WITH_RAW_MODE_NOT_R0 */
83
84
85	/**
86	* Converts a GC selector based address to a flat address.
87	*
88	* No limit checks are done. Use the SELMToFlat() or SELMValidate() functions
89	* for that.
90	*
91	* @returns Flat address.
92	* @param pVM Pointer to the VM.
93	* @param SelReg Selector register
94	* @param pCtxCore CPU context
95	* @param Addr Address part.
96	*/
97	VMMDECL(RTGCPTR) SELMToFlat(PVM pVM, DISSELREG SelReg, PCPUMCTXCORE pCtxCore, RTGCPTR Addr)
98	{
99	PCPUMSELREG pSReg;
100	PVMCPU pVCpu = VMMGetCpu(pVM);
101
102	int rc = DISFetchRegSegEx(pCtxCore, SelReg, &pSReg); AssertRC(rc);
103
104	/*
105	* Deal with real & v86 mode first.
106	*/
107	if ( pCtxCore->eflags.Bits.u1VM
108	\|\| CPUMIsGuestInRealMode(pVCpu))
109	{
110	RTGCUINTPTR uFlat = (RTGCUINTPTR)Addr & 0xffff;
111	if (CPUMSELREG_ARE_HIDDEN_PARTS_VALID(pVCpu, pSReg))
112	uFlat += pSReg->u64Base;
113	else
114	uFlat += (RTGCUINTPTR)pSReg->Sel << 4;
115	return (RTGCPTR)uFlat;
116	}
117
118	#ifdef VBOX_WITH_RAW_MODE_NOT_R0
119	/** @todo when we're in 16 bits mode, we should cut off the address as well?? */
120	if (!CPUMSELREG_ARE_HIDDEN_PARTS_VALID(pVCpu, pSReg))
121	CPUMGuestLazyLoadHiddenSelectorReg(pVCpu, pSReg);
122	if (!CPUMSELREG_ARE_HIDDEN_PARTS_VALID(pVCpu, &pCtxCore->cs))
123	CPUMGuestLazyLoadHiddenSelectorReg(pVCpu, &pCtxCore->cs);
124	#else
125	Assert(CPUMSELREG_ARE_HIDDEN_PARTS_VALID(pVCpu, pSReg));
126	Assert(CPUMSELREG_ARE_HIDDEN_PARTS_VALID(pVCpu, &pCtxCore->cs));
127	#endif
128
129	/* 64 bits mode: CS, DS, ES and SS are treated as if each segment base is 0
130	(Intel® 64 and IA-32 Architectures Software Developer's Manual: 3.4.2.1). */
131	if ( pCtxCore->cs.Attr.n.u1Long
132	&& CPUMIsGuestInLongMode(pVCpu))
133	{
134	switch (SelReg)
135	{
136	case DISSELREG_FS:
137	case DISSELREG_GS:
138	return (RTGCPTR)(pSReg->u64Base + Addr);
139
140	default:
141	return Addr; /* base 0 */
142	}
143	}
144
145	/* AMD64 manual: compatibility mode ignores the high 32 bits when calculating an effective address. */
146	Assert(pSReg->u64Base <= 0xffffffff);
147	return ((pSReg->u64Base + (RTGCUINTPTR)Addr) & 0xffffffff);
148	}
149
150
151	/**
152	* Converts a GC selector based address to a flat address.
153	*
154	* Some basic checking is done, but not all kinds yet.
155	*
156	* @returns VBox status
157	* @param pVCpu Pointer to the VMCPU.
158	* @param SelReg Selector register.
159	* @param pCtxCore CPU context.
160	* @param Addr Address part.
161	* @param fFlags SELMTOFLAT_FLAGS_*
162	* GDT entires are valid.
163	* @param ppvGC Where to store the GC flat address.
164	*/
165	VMMDECL(int) SELMToFlatEx(PVMCPU pVCpu, DISSELREG SelReg, PCPUMCTXCORE pCtxCore, RTGCPTR Addr, uint32_t fFlags, PRTGCPTR ppvGC)
166	{
167	/*
168	* Fetch the selector first.
169	*/
170	PCPUMSELREG pSReg;
171	int rc = DISFetchRegSegEx(pCtxCore, SelReg, &pSReg);
172	AssertRCReturn(rc, rc); AssertPtr(pSReg);
173
174	/*
175	* Deal with real & v86 mode first.
176	*/
177	if ( pCtxCore->eflags.Bits.u1VM
178	\|\| CPUMIsGuestInRealMode(pVCpu))
179	{
180	RTGCUINTPTR uFlat = (RTGCUINTPTR)Addr & 0xffff;
181	if (ppvGC)
182	{
183	if (CPUMSELREG_ARE_HIDDEN_PARTS_VALID(pVCpu, pSReg))
184	*ppvGC = pSReg->u64Base + uFlat;
185	else
186	*ppvGC = ((RTGCUINTPTR)pSReg->Sel << 4) + uFlat;
187	}
188	return VINF_SUCCESS;
189	}
190
191	#ifdef VBOX_WITH_RAW_MODE_NOT_R0
192	if (!CPUMSELREG_ARE_HIDDEN_PARTS_VALID(pVCpu, pSReg))
193	CPUMGuestLazyLoadHiddenSelectorReg(pVCpu, pSReg);
194	if (!CPUMSELREG_ARE_HIDDEN_PARTS_VALID(pVCpu, &pCtxCore->cs))
195	CPUMGuestLazyLoadHiddenSelectorReg(pVCpu, &pCtxCore->cs);
196	#else
197	Assert(CPUMSELREG_ARE_HIDDEN_PARTS_VALID(pVCpu, pSReg));
198	Assert(CPUMSELREG_ARE_HIDDEN_PARTS_VALID(pVCpu, &pCtxCore->cs));
199	#endif
200
201	/* 64 bits mode: CS, DS, ES and SS are treated as if each segment base is 0
202	(Intel® 64 and IA-32 Architectures Software Developer's Manual: 3.4.2.1). */
203	RTGCPTR pvFlat;
204	bool fCheckLimit = true;
205	if ( pCtxCore->cs.Attr.n.u1Long
206	&& CPUMIsGuestInLongMode(pVCpu))
207	{
208	fCheckLimit = false;
209	switch (SelReg)
210	{
211	case DISSELREG_FS:
212	case DISSELREG_GS:
213	pvFlat = pSReg->u64Base + Addr;
214	break;
215
216	default:
217	pvFlat = Addr;
218	break;
219	}
220	}
221	else
222	{
223	/* AMD64 manual: compatibility mode ignores the high 32 bits when calculating an effective address. */
224	Assert(pSReg->u64Base <= UINT32_C(0xffffffff));
225	pvFlat = pSReg->u64Base + Addr;
226	pvFlat &= UINT32_C(0xffffffff);
227	}
228
229	/*
230	* Check type if present.
231	*/
232	if (pSReg->Attr.n.u1Present)
233	{
234	switch (pSReg->Attr.n.u4Type)
235	{
236	/* Read only selector type. */
237	case X86_SEL_TYPE_RO:
238	case X86_SEL_TYPE_RO_ACC:
239	case X86_SEL_TYPE_RW:
240	case X86_SEL_TYPE_RW_ACC:
241	case X86_SEL_TYPE_EO:
242	case X86_SEL_TYPE_EO_ACC:
243	case X86_SEL_TYPE_ER:
244	case X86_SEL_TYPE_ER_ACC:
245	if (!(fFlags & SELMTOFLAT_FLAGS_NO_PL))
246	{
247	/** @todo fix this mess */
248	}
249	/* check limit. */
250	if (fCheckLimit && Addr > pSReg->u32Limit)
251	return VERR_OUT_OF_SELECTOR_BOUNDS;
252	/* ok */
253	if (ppvGC)
254	*ppvGC = pvFlat;
255	return VINF_SUCCESS;
256
257	case X86_SEL_TYPE_EO_CONF:
258	case X86_SEL_TYPE_EO_CONF_ACC:
259	case X86_SEL_TYPE_ER_CONF:
260	case X86_SEL_TYPE_ER_CONF_ACC:
261	if (!(fFlags & SELMTOFLAT_FLAGS_NO_PL))
262	{
263	/** @todo fix this mess */
264	}
265	/* check limit. */
266	if (fCheckLimit && Addr > pSReg->u32Limit)
267	return VERR_OUT_OF_SELECTOR_BOUNDS;
268	/* ok */
269	if (ppvGC)
270	*ppvGC = pvFlat;
271	return VINF_SUCCESS;
272
273	case X86_SEL_TYPE_RO_DOWN:
274	case X86_SEL_TYPE_RO_DOWN_ACC:
275	case X86_SEL_TYPE_RW_DOWN:
276	case X86_SEL_TYPE_RW_DOWN_ACC:
277	if (!(fFlags & SELMTOFLAT_FLAGS_NO_PL))
278	{
279	/** @todo fix this mess */
280	}
281	/* check limit. */
282	if (fCheckLimit)
283	{
284	if (!pSReg->Attr.n.u1Granularity && Addr > UINT32_C(0xffff))
285	return VERR_OUT_OF_SELECTOR_BOUNDS;
286	if (Addr <= pSReg->u32Limit)
287	return VERR_OUT_OF_SELECTOR_BOUNDS;
288	}
289	/* ok */
290	if (ppvGC)
291	*ppvGC = pvFlat;
292	return VINF_SUCCESS;
293
294	default:
295	return VERR_INVALID_SELECTOR;
296
297	}
298	}
299	return VERR_SELECTOR_NOT_PRESENT;
300	}
301
302
303	#ifdef VBOX_WITH_RAW_MODE_NOT_R0
304	/**
305	* Converts a GC selector based address to a flat address.
306	*
307	* Some basic checking is done, but not all kinds yet.
308	*
309	* @returns VBox status
310	* @param pVCpu Pointer to the VMCPU.
311	* @param eflags Current eflags
312	* @param Sel Selector part.
313	* @param Addr Address part.
314	* @param fFlags SELMTOFLAT_FLAGS_*
315	* GDT entires are valid.
316	* @param ppvGC Where to store the GC flat address.
317	* @param pcb Where to store the bytes from *ppvGC which can be accessed according to
318	* the selector. NULL is allowed.
319	* @remarks Don't use when in long mode.
320	*/
321	VMMDECL(int) SELMToFlatBySelEx(PVMCPU pVCpu, X86EFLAGS eflags, RTSEL Sel, RTGCPTR Addr,
322	uint32_t fFlags, PRTGCPTR ppvGC, uint32_t *pcb)
323	{
324	Assert(!CPUMIsGuestInLongMode(pVCpu)); /* DON'T USE! (Accessing shadow GDT/LDT.) */
325	Assert(!HMIsEnabled(pVCpu->CTX_SUFF(pVM)));
326
327	/*
328	* Deal with real & v86 mode first.
329	*/
330	if ( eflags.Bits.u1VM
331	\|\| CPUMIsGuestInRealMode(pVCpu))
332	{
333	RTGCUINTPTR uFlat = (RTGCUINTPTR)Addr & 0xffff;
334	if (ppvGC)
335	*ppvGC = ((RTGCUINTPTR)Sel << 4) + uFlat;
336	if (pcb)
337	*pcb = 0x10000 - uFlat;
338	return VINF_SUCCESS;
339	}
340
341	/** @todo when we're in 16 bits mode, we should cut off the address as well?? */
342	X86DESC Desc;
343	PVM pVM = pVCpu->CTX_SUFF(pVM);
344	if (!(Sel & X86_SEL_LDT))
345	{
346	if ( !(fFlags & SELMTOFLAT_FLAGS_HYPER)
347	&& (Sel \| X86_SEL_RPL_LDT) > pVM->selm.s.GuestGdtr.cbGdt)
348	return VERR_INVALID_SELECTOR;
349	Desc = pVM->selm.s.CTX_SUFF(paGdt)[Sel >> X86_SEL_SHIFT];
350	}
351	else
352	{
353	if ((Sel \| X86_SEL_RPL_LDT) > pVM->selm.s.cbLdtLimit)
354	return VERR_INVALID_SELECTOR;
355
356	/** @todo handle LDT page(s) not present! */
357	PX86DESC paLDT = (PX86DESC)((char *)pVM->selm.s.CTX_SUFF(pvLdt) + pVM->selm.s.offLdtHyper);
358	Desc = paLDT[Sel >> X86_SEL_SHIFT];
359	}
360
361	/* calc limit. */
362	uint32_t u32Limit = X86DESC_LIMIT_G(&Desc);
363
364	/* calc address assuming straight stuff. */
365	RTGCPTR pvFlat = Addr + X86DESC_BASE(&Desc);
366
367	/* Cut the address to 32 bits. */
368	Assert(!CPUMIsGuestInLongMode(pVCpu));
369	pvFlat &= 0xffffffff;
370
371	uint8_t u1Present = Desc.Gen.u1Present;
372	uint8_t u1Granularity = Desc.Gen.u1Granularity;
373	uint8_t u1DescType = Desc.Gen.u1DescType;
374	uint8_t u4Type = Desc.Gen.u4Type;
375
376	/*
377	* Check if present.
378	*/
379	if (u1Present)
380	{
381	/*
382	* Type check.
383	*/
384	#define BOTH(a, b) ((a << 16) \| b)
385	switch (BOTH(u1DescType, u4Type))
386	{
387
388	/** Read only selector type. */
389	case BOTH(1,X86_SEL_TYPE_RO):
390	case BOTH(1,X86_SEL_TYPE_RO_ACC):
391	case BOTH(1,X86_SEL_TYPE_RW):
392	case BOTH(1,X86_SEL_TYPE_RW_ACC):
393	case BOTH(1,X86_SEL_TYPE_EO):
394	case BOTH(1,X86_SEL_TYPE_EO_ACC):
395	case BOTH(1,X86_SEL_TYPE_ER):
396	case BOTH(1,X86_SEL_TYPE_ER_ACC):
397	if (!(fFlags & SELMTOFLAT_FLAGS_NO_PL))
398	{
399	/** @todo fix this mess */
400	}
401	/* check limit. */
402	if ((RTGCUINTPTR)Addr > u32Limit)
403	return VERR_OUT_OF_SELECTOR_BOUNDS;
404	/* ok */
405	if (ppvGC)
406	*ppvGC = pvFlat;
407	if (pcb)
408	*pcb = u32Limit - (uint32_t)Addr + 1;
409	return VINF_SUCCESS;
410
411	case BOTH(1,X86_SEL_TYPE_EO_CONF):
412	case BOTH(1,X86_SEL_TYPE_EO_CONF_ACC):
413	case BOTH(1,X86_SEL_TYPE_ER_CONF):
414	case BOTH(1,X86_SEL_TYPE_ER_CONF_ACC):
415	if (!(fFlags & SELMTOFLAT_FLAGS_NO_PL))
416	{
417	/** @todo fix this mess */
418	}
419	/* check limit. */
420	if ((RTGCUINTPTR)Addr > u32Limit)
421	return VERR_OUT_OF_SELECTOR_BOUNDS;
422	/* ok */
423	if (ppvGC)
424	*ppvGC = pvFlat;
425	if (pcb)
426	*pcb = u32Limit - (uint32_t)Addr + 1;
427	return VINF_SUCCESS;
428
429	case BOTH(1,X86_SEL_TYPE_RO_DOWN):
430	case BOTH(1,X86_SEL_TYPE_RO_DOWN_ACC):
431	case BOTH(1,X86_SEL_TYPE_RW_DOWN):
432	case BOTH(1,X86_SEL_TYPE_RW_DOWN_ACC):
433	if (!(fFlags & SELMTOFLAT_FLAGS_NO_PL))
434	{
435	/** @todo fix this mess */
436	}
437	/* check limit. */
438	if (!u1Granularity && (RTGCUINTPTR)Addr > (RTGCUINTPTR)0xffff)
439	return VERR_OUT_OF_SELECTOR_BOUNDS;
440	if ((RTGCUINTPTR)Addr <= u32Limit)
441	return VERR_OUT_OF_SELECTOR_BOUNDS;
442
443	/* ok */
444	if (ppvGC)
445	*ppvGC = pvFlat;
446	if (pcb)
447	*pcb = (RTGCUINTPTR)(u1Granularity ? 0xffffffff : 0xffff) - (RTGCUINTPTR)Addr + 1;
448	return VINF_SUCCESS;
449
450	case BOTH(0,X86_SEL_TYPE_SYS_286_TSS_AVAIL):
451	case BOTH(0,X86_SEL_TYPE_SYS_LDT):
452	case BOTH(0,X86_SEL_TYPE_SYS_286_TSS_BUSY):
453	case BOTH(0,X86_SEL_TYPE_SYS_286_CALL_GATE):
454	case BOTH(0,X86_SEL_TYPE_SYS_TASK_GATE):
455	case BOTH(0,X86_SEL_TYPE_SYS_286_INT_GATE):
456	case BOTH(0,X86_SEL_TYPE_SYS_286_TRAP_GATE):
457	case BOTH(0,X86_SEL_TYPE_SYS_386_TSS_AVAIL):
458	case BOTH(0,X86_SEL_TYPE_SYS_386_TSS_BUSY):
459	case BOTH(0,X86_SEL_TYPE_SYS_386_CALL_GATE):
460	case BOTH(0,X86_SEL_TYPE_SYS_386_INT_GATE):
461	case BOTH(0,X86_SEL_TYPE_SYS_386_TRAP_GATE):
462	if (!(fFlags & SELMTOFLAT_FLAGS_NO_PL))
463	{
464	/** @todo fix this mess */
465	}
466	/* check limit. */
467	if ((RTGCUINTPTR)Addr > u32Limit)
468	return VERR_OUT_OF_SELECTOR_BOUNDS;
469	/* ok */
470	if (ppvGC)
471	*ppvGC = pvFlat;
472	if (pcb)
473	pcb = 0xffffffff - (RTGCUINTPTR)pvFlat + 1; / Depends on the type.. fixme if we care. */
474	return VINF_SUCCESS;
475
476	default:
477	return VERR_INVALID_SELECTOR;
478
479	}
480	#undef BOTH
481	}
482	return VERR_SELECTOR_NOT_PRESENT;
483	}
484	#endif /* VBOX_WITH_RAW_MODE_NOT_R0 */
485
486
487	#ifdef VBOX_WITH_RAW_MODE_NOT_R0
488
489	static void selLoadHiddenSelectorRegFromGuestTable(PVMCPU pVCpu, PCCPUMCTX pCtx, PCPUMSELREG pSReg,
490	RTGCPTR GCPtrDesc, RTSEL const Sel, uint32_t const iSReg)
491	{
492	Assert(!HMIsEnabled(pVCpu->CTX_SUFF(pVM)));
493
494	/*
495	* Try read the entry.
496	*/
497	X86DESC GstDesc;
498	int rc = PGMPhysReadGCPtr(pVCpu, &GstDesc, GCPtrDesc, sizeof(GstDesc));
499	if (RT_FAILURE(rc))
500	{
501	Log(("SELMLoadHiddenSelectorReg: Error reading descriptor %s=%#x: %Rrc\n", g_aszSRegNms[iSReg], Sel, rc));
502	STAM_REL_COUNTER_INC(&pVCpu->CTX_SUFF(pVM)->selm.s.StatLoadHidSelReadErrors);
503	return;
504	}
505
506	/*
507	* Validate it and load it.
508	*/
509	if (!selmIsGstDescGoodForSReg(pVCpu, pSReg, &GstDesc, iSReg, CPUMGetGuestCPL(pVCpu)))
510	{
511	Log(("SELMLoadHiddenSelectorReg: Guest table entry is no good (%s=%#x): %.8Rhxs\n", g_aszSRegNms[iSReg], Sel, &GstDesc));
512	STAM_REL_COUNTER_INC(&pVCpu->CTX_SUFF(pVM)->selm.s.StatLoadHidSelGstNoGood);
513	return;
514	}
515
516	selmLoadHiddenSRegFromGuestDesc(pVCpu, pSReg, &GstDesc);
517	Log(("SELMLoadHiddenSelectorReg: loaded %s=%#x:{b=%llx, l=%x, a=%x, vs=%x} (gst)\n",
518	g_aszSRegNms[iSReg], Sel, pSReg->u64Base, pSReg->u32Limit, pSReg->Attr.u, pSReg->ValidSel));
519	STAM_COUNTER_INC(&pVCpu->CTX_SUFF(pVM)->selm.s.StatLoadHidSelGst);
520	}
521
522
523	/**
524	* CPUM helper that loads the hidden selector register from the descriptor table
525	* when executing with raw-mode.
526	*
527	* @remarks This is only used when in legacy protected mode!
528	*
529	* @param pVCpu Pointer to the current virtual CPU.
530	* @param pCtx The guest CPU context.
531	* @param pSReg The selector register.
532	*
533	* @todo Deal 100% correctly with stale selectors. What's more evil is
534	* invalid page table entries, which isn't impossible to imagine for
535	* LDT entries for instance, though unlikely. Currently, we turn a
536	* blind eye to these issues and return the old hidden registers,
537	* though we don't set the valid flag, so that we'll try loading them
538	* over and over again till we succeed loading something.
539	*/
540	VMM_INT_DECL(void) SELMLoadHiddenSelectorReg(PVMCPU pVCpu, PCCPUMCTX pCtx, PCPUMSELREG pSReg)
541	{
542	Assert(pCtx->cr0 & X86_CR0_PE);
543	Assert(!(pCtx->msrEFER & MSR_K6_EFER_LMA));
544
545	PVM pVM = pVCpu->CTX_SUFF(pVM);
546	Assert(pVM->cCpus == 1);
547	Assert(!HMIsEnabled(pVM));
548
549
550	/*
551	* Get the shadow descriptor table entry and validate it.
552	* Should something go amiss, try the guest table.
553	*/
554	RTSEL const Sel = pSReg->Sel;
555	uint32_t const iSReg = pSReg - CPUMCTX_FIRST_SREG(pCtx); Assert(iSReg < X86_SREG_COUNT);
556	PCX86DESC pShwDesc;
557	if (!(Sel & X86_SEL_LDT))
558	{
559	/** @todo this shall not happen, we shall check for these things when executing
560	* LGDT */
561	AssertReturnVoid((Sel \| X86_SEL_RPL \| X86_SEL_LDT) <= pCtx->gdtr.cbGdt);
562
563	pShwDesc = &pVM->selm.s.CTX_SUFF(paGdt)[Sel >> X86_SEL_SHIFT];
564	if ( VMCPU_FF_IS_SET(pVCpu, VMCPU_FF_SELM_SYNC_GDT)
565	\|\| !selmIsShwDescGoodForSReg(pSReg, pShwDesc, iSReg, CPUMGetGuestCPL(pVCpu)))
566	{
567	selLoadHiddenSelectorRegFromGuestTable(pVCpu, pCtx, pSReg, pCtx->gdtr.pGdt + (Sel & X86_SEL_MASK), Sel, iSReg);
568	return;
569	}
570	}
571	else
572	{
573	/** @todo this shall not happen, we shall check for these things when executing
574	* LLDT */
575	AssertReturnVoid((Sel \| X86_SEL_RPL \| X86_SEL_LDT) <= pCtx->ldtr.u32Limit);
576
577	pShwDesc = (PCX86DESC)((uintptr_t)pVM->selm.s.CTX_SUFF(pvLdt) + pVM->selm.s.offLdtHyper + (Sel & X86_SEL_MASK));
578	if ( VMCPU_FF_IS_SET(pVCpu, VMCPU_FF_SELM_SYNC_LDT)
579	\|\| !selmIsShwDescGoodForSReg(pSReg, pShwDesc, iSReg, CPUMGetGuestCPL(pVCpu)))
580	{
581	selLoadHiddenSelectorRegFromGuestTable(pVCpu, pCtx, pSReg, pCtx->ldtr.u64Base + (Sel & X86_SEL_MASK), Sel, iSReg);
582	return;
583	}
584	}
585
586	/*
587	* All fine, load it.
588	*/
589	selmLoadHiddenSRegFromShadowDesc(pSReg, pShwDesc);
590	STAM_COUNTER_INC(&pVCpu->CTX_SUFF(pVM)->selm.s.StatLoadHidSelShw);
591	Log(("SELMLoadHiddenSelectorReg: loaded %s=%#x:{b=%llx, l=%x, a=%x, vs=%x} (shw)\n",
592	g_aszSRegNms[iSReg], Sel, pSReg->u64Base, pSReg->u32Limit, pSReg->Attr.u, pSReg->ValidSel));
593	}
594
595	#endif /* VBOX_WITH_RAW_MODE_NOT_R0 */
596
597	/**
598	* Validates and converts a GC selector based code address to a flat
599	* address when in real or v8086 mode.
600	*
601	* @returns VINF_SUCCESS.
602	* @param pVCpu Pointer to the VMCPU.
603	* @param SelCS Selector part.
604	* @param pHidCS The hidden CS register part. Optional.
605	* @param Addr Address part.
606	* @param ppvFlat Where to store the flat address.
607	*/
608	DECLINLINE(int) selmValidateAndConvertCSAddrRealMode(PVMCPU pVCpu, RTSEL SelCS, PCCPUMSELREGHID pSReg, RTGCPTR Addr,
609	PRTGCPTR ppvFlat)
610	{
611	RTGCUINTPTR uFlat = Addr & 0xffff;
612	if (!pSReg \|\| !CPUMSELREG_ARE_HIDDEN_PARTS_VALID(pVCpu, pSReg))
613	uFlat += (RTGCUINTPTR)SelCS << 4;
614	else
615	uFlat += pSReg->u64Base;
616	*ppvFlat = uFlat;
617	return VINF_SUCCESS;
618	}
619
620
621	#ifdef VBOX_WITH_RAW_MODE_NOT_R0
622	/**
623	* Validates and converts a GC selector based code address to a flat address
624	* when in protected/long mode using the raw-mode algorithm.
625	*
626	* @returns VBox status code.
627	* @param pVM Pointer to the VM.
628	* @param pVCpu Pointer to the VMCPU.
629	* @param SelCPL Current privilege level. Get this from SS - CS might be
630	* conforming! A full selector can be passed, we'll only
631	* use the RPL part.
632	* @param SelCS Selector part.
633	* @param Addr Address part.
634	* @param ppvFlat Where to store the flat address.
635	* @param pcBits Where to store the segment bitness (16/32/64). Optional.
636	*/
637	DECLINLINE(int) selmValidateAndConvertCSAddrRawMode(PVM pVM, PVMCPU pVCpu, RTSEL SelCPL, RTSEL SelCS, RTGCPTR Addr,
638	PRTGCPTR ppvFlat, uint32_t *pcBits)
639	{
640	NOREF(pVCpu);
641	Assert(!HMIsEnabled(pVM));
642
643	/** @todo validate limit! */
644	X86DESC Desc;
645	if (!(SelCS & X86_SEL_LDT))
646	Desc = pVM->selm.s.CTX_SUFF(paGdt)[SelCS >> X86_SEL_SHIFT];
647	else
648	{
649	/** @todo handle LDT page(s) not present! */
650	PX86DESC paLDT = (PX86DESC)((char *)pVM->selm.s.CTX_SUFF(pvLdt) + pVM->selm.s.offLdtHyper);
651	Desc = paLDT[SelCS >> X86_SEL_SHIFT];
652	}
653
654	/*
655	* Check if present.
656	*/
657	if (Desc.Gen.u1Present)
658	{
659	/*
660	* Type check.
661	*/
662	if ( Desc.Gen.u1DescType == 1
663	&& (Desc.Gen.u4Type & X86_SEL_TYPE_CODE))
664	{
665	/*
666	* Check level.
667	*/
668	unsigned uLevel = RT_MAX(SelCPL & X86_SEL_RPL, SelCS & X86_SEL_RPL);
669	if ( !(Desc.Gen.u4Type & X86_SEL_TYPE_CONF)
670	? uLevel <= Desc.Gen.u2Dpl
671	: uLevel >= Desc.Gen.u2Dpl /* hope I got this right now... */
672	)
673	{
674	/*
675	* Limit check.
676	*/
677	uint32_t u32Limit = X86DESC_LIMIT_G(&Desc);
678	if ((RTGCUINTPTR)Addr <= u32Limit)
679	{
680	*ppvFlat = (RTGCPTR)((RTGCUINTPTR)Addr + X86DESC_BASE(&Desc));
681	/* Cut the address to 32 bits. */
682	*ppvFlat &= 0xffffffff;
683
684	if (pcBits)
685	pcBits = Desc.Gen.u1DefBig ? 32 : 16; /* @todo GUEST64 */
686	return VINF_SUCCESS;
687	}
688	return VERR_OUT_OF_SELECTOR_BOUNDS;
689	}
690	return VERR_INVALID_RPL;
691	}
692	return VERR_NOT_CODE_SELECTOR;
693	}
694	return VERR_SELECTOR_NOT_PRESENT;
695	}
696	#endif /* VBOX_WITH_RAW_MODE_NOT_R0 */
697
698
699	/**
700	* Validates and converts a GC selector based code address to a flat address
701	* when in protected/long mode using the standard hidden selector registers
702	*
703	* @returns VBox status code.
704	* @param pVCpu Pointer to the VMCPU.
705	* @param SelCPL Current privilege level. Get this from SS - CS might be
706	* conforming! A full selector can be passed, we'll only
707	* use the RPL part.
708	* @param SelCS Selector part.
709	* @param pSRegCS The full CS selector register.
710	* @param Addr The address (think IP/EIP/RIP).
711	* @param ppvFlat Where to store the flat address upon successful return.
712	*/
713	DECLINLINE(int) selmValidateAndConvertCSAddrHidden(PVMCPU pVCpu, RTSEL SelCPL, RTSEL SelCS, PCCPUMSELREGHID pSRegCS,
714	RTGCPTR Addr, PRTGCPTR ppvFlat)
715	{
716	/*
717	* Check if present.
718	*/
719	if (pSRegCS->Attr.n.u1Present)
720	{
721	/*
722	* Type check.
723	*/
724	if ( pSRegCS->Attr.n.u1DescType == 1
725	&& (pSRegCS->Attr.n.u4Type & X86_SEL_TYPE_CODE))
726	{
727	/*
728	* Check level.
729	*/
730	unsigned uLevel = RT_MAX(SelCPL & X86_SEL_RPL, SelCS & X86_SEL_RPL);
731	if ( !(pSRegCS->Attr.n.u4Type & X86_SEL_TYPE_CONF)
732	? uLevel <= pSRegCS->Attr.n.u2Dpl
733	: uLevel >= pSRegCS->Attr.n.u2Dpl /* hope I got this right now... */
734	)
735	{
736	/* 64 bits mode: CS, DS, ES and SS are treated as if each segment base is 0
737	(Intel® 64 and IA-32 Architectures Software Developer's Manual: 3.4.2.1). */
738	if ( pSRegCS->Attr.n.u1Long
739	&& CPUMIsGuestInLongMode(pVCpu))
740	{
741	*ppvFlat = Addr;
742	return VINF_SUCCESS;
743	}
744
745	/*
746	* Limit check. Note that the limit in the hidden register is the
747	* final value. The granularity bit was included in its calculation.
748	*/
749	uint32_t u32Limit = pSRegCS->u32Limit;
750	if ((RTGCUINTPTR)Addr <= u32Limit)
751	{
752	*ppvFlat = Addr + pSRegCS->u64Base;
753	return VINF_SUCCESS;
754	}
755
756	return VERR_OUT_OF_SELECTOR_BOUNDS;
757	}
758	Log(("selmValidateAndConvertCSAddrHidden: Invalid RPL Attr.n.u4Type=%x cpl=%x dpl=%x\n",
759	pSRegCS->Attr.n.u4Type, uLevel, pSRegCS->Attr.n.u2Dpl));
760	return VERR_INVALID_RPL;
761	}
762	return VERR_NOT_CODE_SELECTOR;
763	}
764	return VERR_SELECTOR_NOT_PRESENT;
765	}
766
767
768	/**
769	* Validates and converts a GC selector based code address to a flat address.
770	*
771	* @returns VBox status code.
772	* @param pVCpu Pointer to the VMCPU.
773	* @param Efl Current EFLAGS.
774	* @param SelCPL Current privilege level. Get this from SS - CS might be
775	* conforming! A full selector can be passed, we'll only
776	* use the RPL part.
777	* @param SelCS Selector part.
778	* @param pSRegCS The full CS selector register.
779	* @param Addr The address (think IP/EIP/RIP).
780	* @param ppvFlat Where to store the flat address upon successful return.
781	*/
782	VMMDECL(int) SELMValidateAndConvertCSAddr(PVMCPU pVCpu, X86EFLAGS Efl, RTSEL SelCPL, RTSEL SelCS, PCPUMSELREG pSRegCS,
783	RTGCPTR Addr, PRTGCPTR ppvFlat)
784	{
785	if ( Efl.Bits.u1VM
786	\|\| CPUMIsGuestInRealMode(pVCpu))
787	return selmValidateAndConvertCSAddrRealMode(pVCpu, SelCS, pSRegCS, Addr, ppvFlat);
788
789	#ifdef VBOX_WITH_RAW_MODE_NOT_R0
790	/* Use the hidden registers when possible, updating them if outdate. */
791	if (!pSRegCS)
792	return selmValidateAndConvertCSAddrRawMode(pVCpu->CTX_SUFF(pVM), pVCpu, SelCPL, SelCS, Addr, ppvFlat, NULL);
793
794	if (!CPUMSELREG_ARE_HIDDEN_PARTS_VALID(pVCpu, pSRegCS))
795	CPUMGuestLazyLoadHiddenSelectorReg(pVCpu, pSRegCS);
796
797	/* Undo ring compression. */
798	if ((SelCPL & X86_SEL_RPL) == 1 && !HMIsEnabled(pVCpu->CTX_SUFF(pVM)))
799	SelCPL &= ~X86_SEL_RPL;
800	Assert(pSRegCS->Sel == SelCS);
801	if ((SelCS & X86_SEL_RPL) == 1 && !HMIsEnabled(pVCpu->CTX_SUFF(pVM)))
802	SelCS &= ~X86_SEL_RPL;
803	#else
804	Assert(CPUMSELREG_ARE_HIDDEN_PARTS_VALID(pVCpu, pSRegCS));
805	Assert(pSRegCS->Sel == SelCS);
806	#endif
807
808	return selmValidateAndConvertCSAddrHidden(pVCpu, SelCPL, SelCS, pSRegCS, Addr, ppvFlat);
809	}
810
811
812	/**
813	* Returns Hypervisor's Trap 08 (\#DF) selector.
814	*
815	* @returns Hypervisor's Trap 08 (\#DF) selector.
816	* @param pVM Pointer to the VM.
817	*/
818	VMMDECL(RTSEL) SELMGetTrap8Selector(PVM pVM)
819	{
820	return pVM->selm.s.aHyperSel[SELM_HYPER_SEL_TSS_TRAP08];
821	}
822
823
824	/**
825	* Sets EIP of Hypervisor's Trap 08 (\#DF) TSS.
826	*
827	* @param pVM Pointer to the VM.
828	* @param u32EIP EIP of Trap 08 handler.
829	*/
830	VMMDECL(void) SELMSetTrap8EIP(PVM pVM, uint32_t u32EIP)
831	{
832	pVM->selm.s.TssTrap08.eip = u32EIP;
833	}
834
835
836	/**
837	* Sets ss:esp for ring1 in main Hypervisor's TSS.
838	*
839	* @param pVM Pointer to the VM.
840	* @param ss Ring1 SS register value. Pass 0 if invalid.
841	* @param esp Ring1 ESP register value.
842	*/
843	void selmSetRing1Stack(PVM pVM, uint32_t ss, RTGCPTR32 esp)
844	{
845	Assert(!HMIsEnabled(pVM));
846	Assert((ss & 1) \|\| esp == 0);
847	pVM->selm.s.Tss.ss1 = ss;
848	pVM->selm.s.Tss.esp1 = (uint32_t)esp;
849	}
850
851
852	#ifdef VBOX_WITH_RAW_RING1
853	/**
854	* Sets ss:esp for ring1 in main Hypervisor's TSS.
855	*
856	* @param pVM Pointer to the VM.
857	* @param ss Ring2 SS register value. Pass 0 if invalid.
858	* @param esp Ring2 ESP register value.
859	*/
860	void selmSetRing2Stack(PVM pVM, uint32_t ss, RTGCPTR32 esp)
861	{
862	Assert(!HMIsEnabled(pVM));
863	Assert((ss & 3) == 2 \|\| esp == 0);
864	pVM->selm.s.Tss.ss2 = ss;
865	pVM->selm.s.Tss.esp2 = (uint32_t)esp;
866	}
867	#endif
868
869
870	#ifdef VBOX_WITH_RAW_MODE_NOT_R0
871	/**
872	* Gets ss:esp for ring1 in main Hypervisor's TSS.
873	*
874	* Returns SS=0 if the ring-1 stack isn't valid.
875	*
876	* @returns VBox status code.
877	* @param pVM Pointer to the VM.
878	* @param pSS Ring1 SS register value.
879	* @param pEsp Ring1 ESP register value.
880	*/
881	VMMDECL(int) SELMGetRing1Stack(PVM pVM, uint32_t *pSS, PRTGCPTR32 pEsp)
882	{
883	Assert(!HMIsEnabled(pVM));
884	Assert(pVM->cCpus == 1);
885	PVMCPU pVCpu = &pVM->aCpus[0];
886
887	#ifdef SELM_TRACK_GUEST_TSS_CHANGES
888	if (pVM->selm.s.fSyncTSSRing0Stack)
889	{
890	#endif
891	RTGCPTR GCPtrTss = pVM->selm.s.GCPtrGuestTss;
892	int rc;
893	VBOXTSS tss;
894
895	Assert(pVM->selm.s.GCPtrGuestTss && pVM->selm.s.cbMonitoredGuestTss);
896
897	# ifdef IN_RC
898	bool fTriedAlready = false;
899
900	l_tryagain:
901	PVBOXTSS pTss = (PVBOXTSS)(uintptr_t)GCPtrTss;
902	rc = MMGCRamRead(pVM, &tss.ss0, &pTss->ss0, sizeof(tss.ss0));
903	rc \|= MMGCRamRead(pVM, &tss.esp0, &pTss->esp0, sizeof(tss.esp0));
904	# ifdef DEBUG
905	rc \|= MMGCRamRead(pVM, &tss.offIoBitmap, &pTss->offIoBitmap, sizeof(tss.offIoBitmap));
906	# endif
907
908	if (RT_FAILURE(rc))
909	{
910	if (!fTriedAlready)
911	{
912	/* Shadow page might be out of sync. Sync and try again */
913	/** @todo might cross page boundary */
914	fTriedAlready = true;
915	rc = PGMPrefetchPage(pVCpu, (RTGCPTR)GCPtrTss);
916	if (rc != VINF_SUCCESS)
917	return rc;
918	goto l_tryagain;
919	}
920	AssertMsgFailed(("Unable to read TSS structure at %08X\n", GCPtrTss));
921	return rc;
922	}
923
924	# else /* !IN_RC */
925	/* Reading too much. Could be cheaper than two separate calls though. */
926	rc = PGMPhysSimpleReadGCPtr(pVCpu, &tss, GCPtrTss, sizeof(VBOXTSS));
927	if (RT_FAILURE(rc))
928	{
929	AssertReleaseMsgFailed(("Unable to read TSS structure at %08X\n", GCPtrTss));
930	return rc;
931	}
932	# endif /* !IN_RC */
933
934	# ifdef LOG_ENABLED
935	uint32_t ssr0 = pVM->selm.s.Tss.ss1;
936	uint32_t espr0 = pVM->selm.s.Tss.esp1;
937	ssr0 &= ~1;
938
939	if (ssr0 != tss.ss0 \|\| espr0 != tss.esp0)
940	Log(("SELMGetRing1Stack: Updating TSS ring 0 stack to %04X:%08X\n", tss.ss0, tss.esp0));
941
942	Log(("offIoBitmap=%#x\n", tss.offIoBitmap));
943	# endif
944	/* Update our TSS structure for the guest's ring 1 stack */
945	selmSetRing1Stack(pVM, tss.ss0 \| 1, (RTGCPTR32)tss.esp0);
946	pVM->selm.s.fSyncTSSRing0Stack = false;
947	#ifdef SELM_TRACK_GUEST_TSS_CHANGES
948	}
949	#endif
950
951	*pSS = pVM->selm.s.Tss.ss1;
952	*pEsp = (RTGCPTR32)pVM->selm.s.Tss.esp1;
953
954	return VINF_SUCCESS;
955	}
956	#endif /* VBOX_WITH_RAW_MODE_NOT_R0 */
957
958
959	#if defined(VBOX_WITH_RAW_MODE) \|\| (HC_ARCH_BITS != 64 && !defined(VBOX_WITH_HYBRID_32BIT_KERNEL))
960
961	/**
962	* Gets the hypervisor code selector (CS).
963	* @returns CS selector.
964	* @param pVM Pointer to the VM.
965	*/
966	VMMDECL(RTSEL) SELMGetHyperCS(PVM pVM)
967	{
968	return pVM->selm.s.aHyperSel[SELM_HYPER_SEL_CS];
969	}
970
971
972	/**
973	* Gets the 64-mode hypervisor code selector (CS64).
974	* @returns CS selector.
975	* @param pVM Pointer to the VM.
976	*/
977	VMMDECL(RTSEL) SELMGetHyperCS64(PVM pVM)
978	{
979	return pVM->selm.s.aHyperSel[SELM_HYPER_SEL_CS64];
980	}
981
982
983	/**
984	* Gets the hypervisor data selector (DS).
985	* @returns DS selector.
986	* @param pVM Pointer to the VM.
987	*/
988	VMMDECL(RTSEL) SELMGetHyperDS(PVM pVM)
989	{
990	return pVM->selm.s.aHyperSel[SELM_HYPER_SEL_DS];
991	}
992
993
994	/**
995	* Gets the hypervisor TSS selector.
996	* @returns TSS selector.
997	* @param pVM Pointer to the VM.
998	*/
999	VMMDECL(RTSEL) SELMGetHyperTSS(PVM pVM)
1000	{
1001	return pVM->selm.s.aHyperSel[SELM_HYPER_SEL_TSS];
1002	}
1003
1004
1005	/**
1006	* Gets the hypervisor TSS Trap 8 selector.
1007	* @returns TSS Trap 8 selector.
1008	* @param pVM Pointer to the VM.
1009	*/
1010	VMMDECL(RTSEL) SELMGetHyperTSSTrap08(PVM pVM)
1011	{
1012	return pVM->selm.s.aHyperSel[SELM_HYPER_SEL_TSS_TRAP08];
1013	}
1014
1015	/**
1016	* Gets the address for the hypervisor GDT.
1017	*
1018	* @returns The GDT address.
1019	* @param pVM Pointer to the VM.
1020	* @remark This is intended only for very special use, like in the world
1021	* switchers. Don't exploit this API!
1022	*/
1023	VMMDECL(RTRCPTR) SELMGetHyperGDT(PVM pVM)
1024	{
1025	/*
1026	* Always convert this from the HC pointer since we can be
1027	* called before the first relocation and have to work correctly
1028	* without having dependencies on the relocation order.
1029	*/
1030	return (RTRCPTR)MMHyperR3ToRC(pVM, pVM->selm.s.paGdtR3);
1031	}
1032
1033	#endif /* defined(VBOX_WITH_RAW_MODE) \|\| (HC_ARCH_BITS != 64 && !defined(VBOX_WITH_HYBRID_32BIT_KERNEL)) */
1034
1035	/**
1036	* Gets info about the current TSS.
1037	*
1038	* @returns VBox status code.
1039	* @retval VINF_SUCCESS if we've got a TSS loaded.
1040	* @retval VERR_SELM_NO_TSS if we haven't got a TSS (rather unlikely).
1041	*
1042	* @param pVM Pointer to the VM.
1043	* @param pVCpu Pointer to the VMCPU.
1044	* @param pGCPtrTss Where to store the TSS address.
1045	* @param pcbTss Where to store the TSS size limit.
1046	* @param pfCanHaveIOBitmap Where to store the can-have-I/O-bitmap indicator. (optional)
1047	*/
1048	VMMDECL(int) SELMGetTSSInfo(PVM pVM, PVMCPU pVCpu, PRTGCUINTPTR pGCPtrTss, PRTGCUINTPTR pcbTss, bool *pfCanHaveIOBitmap)
1049	{
1050	NOREF(pVM);
1051
1052	/*
1053	* The TR hidden register is always valid.
1054	*/
1055	CPUMSELREGHID trHid;
1056	RTSEL tr = CPUMGetGuestTR(pVCpu, &trHid);
1057	if (!(tr & X86_SEL_MASK_OFF_RPL))
1058	return VERR_SELM_NO_TSS;
1059
1060	*pGCPtrTss = trHid.u64Base;
1061	pcbTss = trHid.u32Limit + (trHid.u32Limit != UINT32_MAX); / be careful. */
1062	if (pfCanHaveIOBitmap)
1063	*pfCanHaveIOBitmap = trHid.Attr.n.u4Type == X86_SEL_TYPE_SYS_386_TSS_AVAIL
1064	\|\| trHid.Attr.n.u4Type == X86_SEL_TYPE_SYS_386_TSS_BUSY;
1065	return VINF_SUCCESS;
1066	}
1067
1068
1069
1070	/**
1071	* Notification callback which is called whenever there is a chance that a CR3
1072	* value might have changed.
1073	* This is called by PGM.
1074	*
1075	* @param pVM Pointer to the VM.
1076	* @param pVCpu Pointer to the VMCPU.
1077	*/
1078	VMMDECL(void) SELMShadowCR3Changed(PVM pVM, PVMCPU pVCpu)
1079	{
1080	/** @todo SMP support!! (64-bit guest scenario, primarily) */
1081	pVM->selm.s.Tss.cr3 = PGMGetHyperCR3(pVCpu);
1082	pVM->selm.s.TssTrap08.cr3 = PGMGetInterRCCR3(pVM, pVCpu);
1083	}
1084

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source: vbox/trunk/src/VBox/VMM/VMMAll/SELMAll.cpp@ 48749

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