CPUMR3Db.cpp@ 68155

Last change on this file since 68155 was 66403, checked in by vboxsync, 8 years ago
CPUM: Added the MXCSR mask to the CPU database and CPUM::GuestInfo as well as the host one to CPUM::fHostMxCsrMask. Need it for correctly implementing LDMXCSR, FXRSTOR and XSTOR.
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File size: 42.0 KB

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1	/* $Id: CPUMR3Db.cpp 66403 2017-04-03 15:21:26Z vboxsync $ */
2	/** @file
3	* CPUM - CPU database part.
4	*/
5
6	/*
7	* Copyright (C) 2013-2016 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_CPUM
23	#include <VBox/vmm/cpum.h>
24	#include "CPUMInternal.h"
25	#include <VBox/vmm/vm.h>
26	#include <VBox/vmm/mm.h>
27
28	#include <VBox/err.h>
29	#include <iprt/asm-amd64-x86.h>
30	#include <iprt/mem.h>
31	#include <iprt/string.h>
32
33
34	/*********************************************************************************************************************************
35	* Structures and Typedefs *
36	*********************************************************************************************************************************/
37	typedef struct CPUMDBENTRY
38	{
39	/** The CPU name. */
40	const char *pszName;
41	/** The full CPU name. */
42	const char *pszFullName;
43	/** The CPU vendor (CPUMCPUVENDOR). */
44	uint8_t enmVendor;
45	/** The CPU family. */
46	uint8_t uFamily;
47	/** The CPU model. */
48	uint8_t uModel;
49	/** The CPU stepping. */
50	uint8_t uStepping;
51	/** The microarchitecture. */
52	CPUMMICROARCH enmMicroarch;
53	/** Scalable bus frequency used for reporting other frequencies. */
54	uint64_t uScalableBusFreq;
55	/** Flags - CPUDB_F_XXX. */
56	uint32_t fFlags;
57	/** The maximum physical address with of the CPU. This should correspond to
58	* the value in CPUID leaf 0x80000008 when present. */
59	uint8_t cMaxPhysAddrWidth;
60	/** The MXCSR mask. */
61	uint32_t fMxCsrMask;
62	/** Pointer to an array of CPUID leaves. */
63	PCCPUMCPUIDLEAF paCpuIdLeaves;
64	/** The number of CPUID leaves in the array paCpuIdLeaves points to. */
65	uint32_t cCpuIdLeaves;
66	/** The method used to deal with unknown CPUID leaves. */
67	CPUMUNKNOWNCPUID enmUnknownCpuId;
68	/** The default unknown CPUID value. */
69	CPUMCPUID DefUnknownCpuId;
70
71	/** MSR mask. Several microarchitectures ignore the higher bits of ECX in
72	* the RDMSR and WRMSR instructions. */
73	uint32_t fMsrMask;
74
75	/** The number of ranges in the table pointed to b paMsrRanges. */
76	uint32_t cMsrRanges;
77	/** MSR ranges for this CPU. */
78	PCCPUMMSRRANGE paMsrRanges;
79	} CPUMDBENTRY;
80
81
82	/*********************************************************************************************************************************
83	* Defined Constants And Macros *
84	*********************************************************************************************************************************/
85	/** @name CPUDB_F_XXX - CPUDBENTRY::fFlags
86	* @{ */
87	/** Should execute all in IEM.
88	* @todo Implement this - currently done in Main... */
89	#define CPUDB_F_EXECUTE_ALL_IN_IEM RT_BIT_32(0)
90	/** @} */
91
92
93	/** @def NULL_ALONE
94	* For eliminating an unnecessary data dependency in standalone builds (for
95	* VBoxSVC). */
96	/** @def ZERO_ALONE
97	* For eliminating an unnecessary data size dependency in standalone builds (for
98	* VBoxSVC). */
99	#ifndef CPUM_DB_STANDALONE
100	# define NULL_ALONE(a_aTable) a_aTable
101	# define ZERO_ALONE(a_cTable) a_cTable
102	#else
103	# define NULL_ALONE(a_aTable) NULL
104	# define ZERO_ALONE(a_cTable) 0
105	#endif
106
107
108	/** @name Short macros for the MSR range entries.
109	*
110	* These are rather cryptic, but this is to reduce the attack on the right
111	* margin.
112	*
113	* @{ */
114	/** Alias one MSR onto another (a_uTarget). */
115	#define MAL(a_uMsr, a_szName, a_uTarget) \
116	RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_MsrAlias, kCpumMsrWrFn_MsrAlias, 0, a_uTarget, 0, 0, a_szName)
117	/** Functions handles everything. */
118	#define MFN(a_uMsr, a_szName, a_enmRdFnSuff, a_enmWrFnSuff) \
119	RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, 0, 0, 0, 0, a_szName)
120	/** Functions handles everything, with GP mask. */
121	#define MFG(a_uMsr, a_szName, a_enmRdFnSuff, a_enmWrFnSuff, a_fWrGpMask) \
122	RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, 0, 0, 0, a_fWrGpMask, a_szName)
123	/** Function handlers, read-only. */
124	#define MFO(a_uMsr, a_szName, a_enmRdFnSuff) \
125	RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_ReadOnly, 0, 0, 0, UINT64_MAX, a_szName)
126	/** Function handlers, ignore all writes. */
127	#define MFI(a_uMsr, a_szName, a_enmRdFnSuff) \
128	RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_IgnoreWrite, 0, 0, UINT64_MAX, 0, a_szName)
129	/** Function handlers, with value. */
130	#define MFV(a_uMsr, a_szName, a_enmRdFnSuff, a_enmWrFnSuff, a_uValue) \
131	RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, 0, a_uValue, 0, 0, a_szName)
132	/** Function handlers, with write ignore mask. */
133	#define MFW(a_uMsr, a_szName, a_enmRdFnSuff, a_enmWrFnSuff, a_fWrIgnMask) \
134	RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, 0, 0, a_fWrIgnMask, 0, a_szName)
135	/** Function handlers, extended version. */
136	#define MFX(a_uMsr, a_szName, a_enmRdFnSuff, a_enmWrFnSuff, a_uValue, a_fWrIgnMask, a_fWrGpMask) \
137	RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, 0, a_uValue, a_fWrIgnMask, a_fWrGpMask, a_szName)
138	/** Function handlers, with CPUMCPU storage variable. */
139	#define MFS(a_uMsr, a_szName, a_enmRdFnSuff, a_enmWrFnSuff, a_CpumCpuMember) \
140	RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, \
141	RT_OFFSETOF(CPUMCPU, a_CpumCpuMember), 0, 0, 0, a_szName)
142	/** Function handlers, with CPUMCPU storage variable, ignore mask and GP mask. */
143	#define MFZ(a_uMsr, a_szName, a_enmRdFnSuff, a_enmWrFnSuff, a_CpumCpuMember, a_fWrIgnMask, a_fWrGpMask) \
144	RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, \
145	RT_OFFSETOF(CPUMCPU, a_CpumCpuMember), 0, a_fWrIgnMask, a_fWrGpMask, a_szName)
146	/** Read-only fixed value. */
147	#define MVO(a_uMsr, a_szName, a_uValue) \
148	RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_FixedValue, kCpumMsrWrFn_ReadOnly, 0, a_uValue, 0, UINT64_MAX, a_szName)
149	/** Read-only fixed value, ignores all writes. */
150	#define MVI(a_uMsr, a_szName, a_uValue) \
151	RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_FixedValue, kCpumMsrWrFn_IgnoreWrite, 0, a_uValue, UINT64_MAX, 0, a_szName)
152	/** Read fixed value, ignore writes outside GP mask. */
153	#define MVG(a_uMsr, a_szName, a_uValue, a_fWrGpMask) \
154	RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_FixedValue, kCpumMsrWrFn_IgnoreWrite, 0, a_uValue, 0, a_fWrGpMask, a_szName)
155	/** Read fixed value, extended version with both GP and ignore masks. */
156	#define MVX(a_uMsr, a_szName, a_uValue, a_fWrIgnMask, a_fWrGpMask) \
157	RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_FixedValue, kCpumMsrWrFn_IgnoreWrite, 0, a_uValue, a_fWrIgnMask, a_fWrGpMask, a_szName)
158	/** The short form, no CPUM backing. */
159	#define MSN(a_uMsr, a_szName, a_enmRdFnSuff, a_enmWrFnSuff, a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask) \
160	RINT(a_uMsr, a_uMsr, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, 0, \
161	a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask, a_szName)
162
163	/** Range: Functions handles everything. */
164	#define RFN(a_uFirst, a_uLast, a_szName, a_enmRdFnSuff, a_enmWrFnSuff) \
165	RINT(a_uFirst, a_uLast, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, 0, 0, 0, 0, a_szName)
166	/** Range: Read fixed value, read-only. */
167	#define RVO(a_uFirst, a_uLast, a_szName, a_uValue) \
168	RINT(a_uFirst, a_uLast, kCpumMsrRdFn_FixedValue, kCpumMsrWrFn_ReadOnly, 0, a_uValue, 0, UINT64_MAX, a_szName)
169	/** Range: Read fixed value, ignore writes. */
170	#define RVI(a_uFirst, a_uLast, a_szName, a_uValue) \
171	RINT(a_uFirst, a_uLast, kCpumMsrRdFn_FixedValue, kCpumMsrWrFn_IgnoreWrite, 0, a_uValue, UINT64_MAX, 0, a_szName)
172	/** Range: The short form, no CPUM backing. */
173	#define RSN(a_uFirst, a_uLast, a_szName, a_enmRdFnSuff, a_enmWrFnSuff, a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask) \
174	RINT(a_uFirst, a_uLast, kCpumMsrRdFn_##a_enmRdFnSuff, kCpumMsrWrFn_##a_enmWrFnSuff, 0, \
175	a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask, a_szName)
176
177	/** Internal form used by the macros. */
178	#ifdef VBOX_WITH_STATISTICS
179	# define RINT(a_uFirst, a_uLast, a_enmRdFn, a_enmWrFn, a_offCpumCpu, a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask, a_szName) \
180	{ a_uFirst, a_uLast, a_enmRdFn, a_enmWrFn, a_offCpumCpu, 0, a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask, a_szName, \
181	{ 0 }, { 0 }, { 0 }, { 0 } }
182	#else
183	# define RINT(a_uFirst, a_uLast, a_enmRdFn, a_enmWrFn, a_offCpumCpu, a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask, a_szName) \
184	{ a_uFirst, a_uLast, a_enmRdFn, a_enmWrFn, a_offCpumCpu, 0, a_uInitOrReadValue, a_fWrIgnMask, a_fWrGpMask, a_szName }
185	#endif
186	/** @} */
187
188	#ifndef CPUM_DB_STANDALONE
189
190	#include "cpus/Intel_Core_i7_6700K.h"
191	#include "cpus/Intel_Core_i7_5600U.h"
192	#include "cpus/Intel_Core_i7_3960X.h"
193	#include "cpus/Intel_Core_i5_3570.h"
194	#include "cpus/Intel_Core_i7_2635QM.h"
195	#include "cpus/Intel_Xeon_X5482_3_20GHz.h"
196	#include "cpus/Intel_Pentium_M_processor_2_00GHz.h"
197	#include "cpus/Intel_Pentium_4_3_00GHz.h"
198	#include "cpus/Intel_Pentium_N3530_2_16GHz.h"
199	#include "cpus/Intel_Atom_330_1_60GHz.h"
200	#include "cpus/Intel_80386.h"
201	#include "cpus/Intel_80286.h"
202	#include "cpus/Intel_80186.h"
203	#include "cpus/Intel_8086.h"
204
205	#include "cpus/AMD_FX_8150_Eight_Core.h"
206	#include "cpus/AMD_Phenom_II_X6_1100T.h"
207	#include "cpus/Quad_Core_AMD_Opteron_2384.h"
208	#include "cpus/AMD_Athlon_64_X2_Dual_Core_4200.h"
209	#include "cpus/AMD_Athlon_64_3200.h"
210
211	#include "cpus/VIA_QuadCore_L4700_1_2_GHz.h"
212
213
214
215	/**
216	* The database entries.
217	*
218	* 1. The first entry is special. It is the fallback for unknown
219	* processors. Thus, it better be pretty representative.
220	*
221	* 2. The first entry for a CPU vendor is likewise important as it is
222	* the default entry for that vendor.
223	*
224	* Generally we put the most recent CPUs first, since these tend to have the
225	* most complicated and backwards compatible list of MSRs.
226	*/
227	static CPUMDBENTRY const * const g_apCpumDbEntries[] =
228	{
229	#ifdef VBOX_CPUDB_Intel_Core_i7_6700K
230	&g_Entry_Intel_Core_i7_6700K,
231	#endif
232	#ifdef VBOX_CPUDB_Intel_Core_i7_5600U
233	&g_Entry_Intel_Core_i7_5600U,
234	#endif
235	#ifdef VBOX_CPUDB_Intel_Core_i5_3570
236	&g_Entry_Intel_Core_i5_3570,
237	#endif
238	#ifdef VBOX_CPUDB_Intel_Core_i7_3960X
239	&g_Entry_Intel_Core_i7_3960X,
240	#endif
241	#ifdef VBOX_CPUDB_Intel_Core_i7_2635QM
242	&g_Entry_Intel_Core_i7_2635QM,
243	#endif
244	#ifdef VBOX_CPUDB_Intel_Pentium_N3530_2_16GHz
245	&g_Entry_Intel_Pentium_N3530_2_16GHz,
246	#endif
247	#ifdef VBOX_CPUDB_Intel_Atom_330_1_60GHz
248	&g_Entry_Intel_Atom_330_1_60GHz,
249	#endif
250	#ifdef Intel_Pentium_M_processor_2_00GHz
251	&g_Entry_Intel_Pentium_M_processor_2_00GHz,
252	#endif
253	#ifdef VBOX_CPUDB_Intel_Xeon_X5482_3_20GHz
254	&g_Entry_Intel_Xeon_X5482_3_20GHz,
255	#endif
256	#ifdef VBOX_CPUDB_Intel_Pentium_4_3_00GHz
257	&g_Entry_Intel_Pentium_4_3_00GHz,
258	#endif
259	#ifdef VBOX_CPUDB_Intel_80486
260	&g_Entry_Intel_80486,
261	#endif
262	#ifdef VBOX_CPUDB_Intel_80386
263	&g_Entry_Intel_80386,
264	#endif
265	#ifdef VBOX_CPUDB_Intel_80286
266	&g_Entry_Intel_80286,
267	#endif
268	#ifdef VBOX_CPUDB_Intel_80186
269	&g_Entry_Intel_80186,
270	#endif
271	#ifdef VBOX_CPUDB_Intel_8086
272	&g_Entry_Intel_8086,
273	#endif
274
275	#ifdef VBOX_CPUDB_AMD_FX_8150_Eight_Core
276	&g_Entry_AMD_FX_8150_Eight_Core,
277	#endif
278	#ifdef VBOX_CPUDB_AMD_Phenom_II_X6_1100T
279	&g_Entry_AMD_Phenom_II_X6_1100T,
280	#endif
281	#ifdef VBOX_CPUDB_Quad_Core_AMD_Opteron_2384
282	&g_Entry_Quad_Core_AMD_Opteron_2384,
283	#endif
284	#ifdef VBOX_CPUDB_AMD_Athlon_64_X2_Dual_Core_4200
285	&g_Entry_AMD_Athlon_64_X2_Dual_Core_4200,
286	#endif
287	#ifdef VBOX_CPUDB_AMD_Athlon_64_3200
288	&g_Entry_AMD_Athlon_64_3200,
289	#endif
290
291	#ifdef VBOX_CPUDB_VIA_QuadCore_L4700_1_2_GHz
292	&g_Entry_VIA_QuadCore_L4700_1_2_GHz,
293	#endif
294
295	#ifdef VBOX_CPUDB_NEC_V20
296	&g_Entry_NEC_V20,
297	#endif
298	};
299
300
301
302	/**
303	* Binary search used by cpumR3MsrRangesInsert and has some special properties
304	* wrt to mismatches.
305	*
306	* @returns Insert location.
307	* @param paMsrRanges The MSR ranges to search.
308	* @param cMsrRanges The number of MSR ranges.
309	* @param uMsr What to search for.
310	*/
311	static uint32_t cpumR3MsrRangesBinSearch(PCCPUMMSRRANGE paMsrRanges, uint32_t cMsrRanges, uint32_t uMsr)
312	{
313	if (!cMsrRanges)
314	return 0;
315
316	uint32_t iStart = 0;
317	uint32_t iLast = cMsrRanges - 1;
318	for (;;)
319	{
320	uint32_t i = iStart + (iLast - iStart + 1) / 2;
321	if ( uMsr >= paMsrRanges[i].uFirst
322	&& uMsr <= paMsrRanges[i].uLast)
323	return i;
324	if (uMsr < paMsrRanges[i].uFirst)
325	{
326	if (i <= iStart)
327	return i;
328	iLast = i - 1;
329	}
330	else
331	{
332	if (i >= iLast)
333	{
334	if (i < cMsrRanges)
335	i++;
336	return i;
337	}
338	iStart = i + 1;
339	}
340	}
341	}
342
343
344	/**
345	* Ensures that there is space for at least @a cNewRanges in the table,
346	* reallocating the table if necessary.
347	*
348	* @returns Pointer to the MSR ranges on success, NULL on failure. On failure
349	* @a *ppaMsrRanges is freed and set to NULL.
350	* @param pVM The cross context VM structure. If NULL,
351	* use the process heap, otherwise the VM's hyper heap.
352	* @param ppaMsrRanges The variable pointing to the ranges (input/output).
353	* @param cMsrRanges The current number of ranges.
354	* @param cNewRanges The number of ranges to be added.
355	*/
356	static PCPUMMSRRANGE cpumR3MsrRangesEnsureSpace(PVM pVM, PCPUMMSRRANGE *ppaMsrRanges, uint32_t cMsrRanges, uint32_t cNewRanges)
357	{
358	uint32_t cMsrRangesAllocated;
359	if (!pVM)
360	cMsrRangesAllocated = RT_ALIGN_32(cMsrRanges, 16);
361	else
362	{
363	/*
364	* We're using the hyper heap now, but when the range array was copied over to it from
365	* the host-context heap, we only copy the exact size and not the ensured size.
366	* See @bugref{7270}.
367	*/
368	cMsrRangesAllocated = cMsrRanges;
369	}
370	if (cMsrRangesAllocated < cMsrRanges + cNewRanges)
371	{
372	void *pvNew;
373	uint32_t cNew = RT_ALIGN_32(cMsrRanges + cNewRanges, 16);
374	if (pVM)
375	{
376	Assert(ppaMsrRanges == &pVM->cpum.s.GuestInfo.paMsrRangesR3);
377	Assert(cMsrRanges == pVM->cpum.s.GuestInfo.cMsrRanges);
378
379	size_t cb = cMsrRangesAllocated * sizeof(**ppaMsrRanges);
380	size_t cbNew = cNew * sizeof(**ppaMsrRanges);
381	int rc = MMR3HyperRealloc(pVM, *ppaMsrRanges, cb, 32, MM_TAG_CPUM_MSRS, cbNew, &pvNew);
382	if (RT_FAILURE(rc))
383	{
384	*ppaMsrRanges = NULL;
385	pVM->cpum.s.GuestInfo.paMsrRangesR0 = NIL_RTR0PTR;
386	pVM->cpum.s.GuestInfo.paMsrRangesRC = NIL_RTRCPTR;
387	LogRel(("CPUM: cpumR3MsrRangesEnsureSpace: MMR3HyperRealloc failed. rc=%Rrc\n", rc));
388	return NULL;
389	}
390	*ppaMsrRanges = (PCPUMMSRRANGE)pvNew;
391	}
392	else
393	{
394	pvNew = RTMemRealloc(ppaMsrRanges, cNew sizeof(**ppaMsrRanges));
395	if (!pvNew)
396	{
397	RTMemFree(*ppaMsrRanges);
398	*ppaMsrRanges = NULL;
399	return NULL;
400	}
401	}
402	*ppaMsrRanges = (PCPUMMSRRANGE)pvNew;
403	}
404
405	if (pVM)
406	{
407	/* Update R0 and RC pointers. */
408	Assert(ppaMsrRanges == &pVM->cpum.s.GuestInfo.paMsrRangesR3);
409	pVM->cpum.s.GuestInfo.paMsrRangesR0 = MMHyperR3ToR0(pVM, *ppaMsrRanges);
410	pVM->cpum.s.GuestInfo.paMsrRangesRC = MMHyperR3ToRC(pVM, *ppaMsrRanges);
411	}
412
413	return *ppaMsrRanges;
414	}
415
416
417	/**
418	* Inserts a new MSR range in into an sorted MSR range array.
419	*
420	* If the new MSR range overlaps existing ranges, the existing ones will be
421	* adjusted/removed to fit in the new one.
422	*
423	* @returns VBox status code.
424	* @retval VINF_SUCCESS
425	* @retval VERR_NO_MEMORY
426	*
427	* @param pVM The cross context VM structure. If NULL,
428	* use the process heap, otherwise the VM's hyper heap.
429	* @param ppaMsrRanges The variable pointing to the ranges (input/output).
430	* Must be NULL if using the hyper heap.
431	* @param pcMsrRanges The variable holding number of ranges. Must be NULL
432	* if using the hyper heap.
433	* @param pNewRange The new range.
434	*/
435	int cpumR3MsrRangesInsert(PVM pVM, PCPUMMSRRANGE ppaMsrRanges, uint32_t pcMsrRanges, PCCPUMMSRRANGE pNewRange)
436	{
437	Assert(pNewRange->uLast >= pNewRange->uFirst);
438	Assert(pNewRange->enmRdFn > kCpumMsrRdFn_Invalid && pNewRange->enmRdFn < kCpumMsrRdFn_End);
439	Assert(pNewRange->enmWrFn > kCpumMsrWrFn_Invalid && pNewRange->enmWrFn < kCpumMsrWrFn_End);
440
441	/*
442	* Validate and use the VM's MSR ranges array if we are using the hyper heap.
443	*/
444	if (pVM)
445	{
446	AssertReturn(!ppaMsrRanges, VERR_INVALID_PARAMETER);
447	AssertReturn(!pcMsrRanges, VERR_INVALID_PARAMETER);
448
449	ppaMsrRanges = &pVM->cpum.s.GuestInfo.paMsrRangesR3;
450	pcMsrRanges = &pVM->cpum.s.GuestInfo.cMsrRanges;
451	}
452	else
453	{
454	AssertReturn(ppaMsrRanges, VERR_INVALID_POINTER);
455	AssertReturn(pcMsrRanges, VERR_INVALID_POINTER);
456	}
457
458	uint32_t cMsrRanges = *pcMsrRanges;
459	PCPUMMSRRANGE paMsrRanges = *ppaMsrRanges;
460
461	/*
462	* Optimize the linear insertion case where we add new entries at the end.
463	*/
464	if ( cMsrRanges > 0
465	&& paMsrRanges[cMsrRanges - 1].uLast < pNewRange->uFirst)
466	{
467	paMsrRanges = cpumR3MsrRangesEnsureSpace(pVM, ppaMsrRanges, cMsrRanges, 1);
468	if (!paMsrRanges)
469	return VERR_NO_MEMORY;
470	paMsrRanges[cMsrRanges] = *pNewRange;
471	*pcMsrRanges += 1;
472	}
473	else
474	{
475	uint32_t i = cpumR3MsrRangesBinSearch(paMsrRanges, cMsrRanges, pNewRange->uFirst);
476	Assert(i == cMsrRanges \|\| pNewRange->uFirst <= paMsrRanges[i].uLast);
477	Assert(i == 0 \|\| pNewRange->uFirst > paMsrRanges[i - 1].uLast);
478
479	/*
480	* Adding an entirely new entry?
481	*/
482	if ( i >= cMsrRanges
483	\|\| pNewRange->uLast < paMsrRanges[i].uFirst)
484	{
485	paMsrRanges = cpumR3MsrRangesEnsureSpace(pVM, ppaMsrRanges, cMsrRanges, 1);
486	if (!paMsrRanges)
487	return VERR_NO_MEMORY;
488	if (i < cMsrRanges)
489	memmove(&paMsrRanges[i + 1], &paMsrRanges[i], (cMsrRanges - i) * sizeof(paMsrRanges[0]));
490	paMsrRanges[i] = *pNewRange;
491	*pcMsrRanges += 1;
492	}
493	/*
494	* Replace existing entry?
495	*/
496	else if ( pNewRange->uFirst == paMsrRanges[i].uFirst
497	&& pNewRange->uLast == paMsrRanges[i].uLast)
498	paMsrRanges[i] = *pNewRange;
499	/*
500	* Splitting an existing entry?
501	*/
502	else if ( pNewRange->uFirst > paMsrRanges[i].uFirst
503	&& pNewRange->uLast < paMsrRanges[i].uLast)
504	{
505	paMsrRanges = cpumR3MsrRangesEnsureSpace(pVM, ppaMsrRanges, cMsrRanges, 2);
506	if (!paMsrRanges)
507	return VERR_NO_MEMORY;
508	if (i < cMsrRanges)
509	memmove(&paMsrRanges[i + 2], &paMsrRanges[i], (cMsrRanges - i) * sizeof(paMsrRanges[0]));
510	paMsrRanges[i + 1] = *pNewRange;
511	paMsrRanges[i + 2] = paMsrRanges[i];
512	paMsrRanges[i ].uLast = pNewRange->uFirst - 1;
513	paMsrRanges[i + 2].uFirst = pNewRange->uLast + 1;
514	*pcMsrRanges += 2;
515	}
516	/*
517	* Complicated scenarios that can affect more than one range.
518	*
519	* The current code does not optimize memmove calls when replacing
520	* one or more existing ranges, because it's tedious to deal with and
521	* not expected to be a frequent usage scenario.
522	*/
523	else
524	{
525	/* Adjust start of first match? */
526	if ( pNewRange->uFirst <= paMsrRanges[i].uFirst
527	&& pNewRange->uLast < paMsrRanges[i].uLast)
528	paMsrRanges[i].uFirst = pNewRange->uLast + 1;
529	else
530	{
531	/* Adjust end of first match? */
532	if (pNewRange->uFirst > paMsrRanges[i].uFirst)
533	{
534	Assert(paMsrRanges[i].uLast >= pNewRange->uFirst);
535	paMsrRanges[i].uLast = pNewRange->uFirst - 1;
536	i++;
537	}
538	/* Replace the whole first match (lazy bird). */
539	else
540	{
541	if (i + 1 < cMsrRanges)
542	memmove(&paMsrRanges[i], &paMsrRanges[i + 1], (cMsrRanges - i - 1) * sizeof(paMsrRanges[0]));
543	cMsrRanges = *pcMsrRanges -= 1;
544	}
545
546	/* Do the new range affect more ranges? */
547	while ( i < cMsrRanges
548	&& pNewRange->uLast >= paMsrRanges[i].uFirst)
549	{
550	if (pNewRange->uLast < paMsrRanges[i].uLast)
551	{
552	/* Adjust the start of it, then we're done. */
553	paMsrRanges[i].uFirst = pNewRange->uLast + 1;
554	break;
555	}
556
557	/* Remove it entirely. */
558	if (i + 1 < cMsrRanges)
559	memmove(&paMsrRanges[i], &paMsrRanges[i + 1], (cMsrRanges - i - 1) * sizeof(paMsrRanges[0]));
560	cMsrRanges = *pcMsrRanges -= 1;
561	}
562	}
563
564	/* Now, perform a normal insertion. */
565	paMsrRanges = cpumR3MsrRangesEnsureSpace(pVM, ppaMsrRanges, cMsrRanges, 1);
566	if (!paMsrRanges)
567	return VERR_NO_MEMORY;
568	if (i < cMsrRanges)
569	memmove(&paMsrRanges[i + 1], &paMsrRanges[i], (cMsrRanges - i) * sizeof(paMsrRanges[0]));
570	paMsrRanges[i] = *pNewRange;
571	*pcMsrRanges += 1;
572	}
573	}
574
575	return VINF_SUCCESS;
576	}
577
578
579	/**
580	* Worker for cpumR3MsrApplyFudge that applies one table.
581	*
582	* @returns VBox status code.
583	* @param pVM The cross context VM structure.
584	* @param paRanges Array of MSRs to fudge.
585	* @param cRanges Number of MSRs in the array.
586	*/
587	static int cpumR3MsrApplyFudgeTable(PVM pVM, PCCPUMMSRRANGE paRanges, size_t cRanges)
588	{
589	for (uint32_t i = 0; i < cRanges; i++)
590	if (!cpumLookupMsrRange(pVM, paRanges[i].uFirst))
591	{
592	LogRel(("CPUM: MSR fudge: %#010x %s\n", paRanges[i].uFirst, paRanges[i].szName));
593	int rc = cpumR3MsrRangesInsert(NULL /* pVM */, &pVM->cpum.s.GuestInfo.paMsrRangesR3, &pVM->cpum.s.GuestInfo.cMsrRanges,
594	&paRanges[i]);
595	if (RT_FAILURE(rc))
596	return rc;
597	}
598	return VINF_SUCCESS;
599	}
600
601
602	/**
603	* Fudges the MSRs that guest are known to access in some odd cases.
604	*
605	* A typical example is a VM that has been moved between different hosts where
606	* for instance the cpu vendor differs.
607	*
608	* Another example is older CPU profiles (e.g. Atom Bonnet) for newer CPUs (e.g.
609	* Atom Silvermont), where features reported thru CPUID aren't present in the
610	* MSRs (e.g. AMD64_TSC_AUX).
611	*
612	*
613	* @returns VBox status code.
614	* @param pVM The cross context VM structure.
615	*/
616	int cpumR3MsrApplyFudge(PVM pVM)
617	{
618	/*
619	* Basic.
620	*/
621	static CPUMMSRRANGE const s_aFudgeMsrs[] =
622	{
623	MFO(0x00000000, "IA32_P5_MC_ADDR", Ia32P5McAddr),
624	MFX(0x00000001, "IA32_P5_MC_TYPE", Ia32P5McType, Ia32P5McType, 0, 0, UINT64_MAX),
625	MVO(0x00000017, "IA32_PLATFORM_ID", 0),
626	MFN(0x0000001b, "IA32_APIC_BASE", Ia32ApicBase, Ia32ApicBase),
627	MVI(0x0000008b, "BIOS_SIGN", 0),
628	MFX(0x000000fe, "IA32_MTRRCAP", Ia32MtrrCap, ReadOnly, 0x508, 0, 0),
629	MFX(0x00000179, "IA32_MCG_CAP", Ia32McgCap, ReadOnly, 0x005, 0, 0),
630	MFX(0x0000017a, "IA32_MCG_STATUS", Ia32McgStatus, Ia32McgStatus, 0, ~(uint64_t)UINT32_MAX, 0),
631	MFN(0x000001a0, "IA32_MISC_ENABLE", Ia32MiscEnable, Ia32MiscEnable),
632	MFN(0x000001d9, "IA32_DEBUGCTL", Ia32DebugCtl, Ia32DebugCtl),
633	MFO(0x000001db, "P6_LAST_BRANCH_FROM_IP", P6LastBranchFromIp),
634	MFO(0x000001dc, "P6_LAST_BRANCH_TO_IP", P6LastBranchToIp),
635	MFO(0x000001dd, "P6_LAST_INT_FROM_IP", P6LastIntFromIp),
636	MFO(0x000001de, "P6_LAST_INT_TO_IP", P6LastIntToIp),
637	MFS(0x00000277, "IA32_PAT", Ia32Pat, Ia32Pat, Guest.msrPAT),
638	MFZ(0x000002ff, "IA32_MTRR_DEF_TYPE", Ia32MtrrDefType, Ia32MtrrDefType, GuestMsrs.msr.MtrrDefType, 0, ~(uint64_t)0xc07),
639	MFN(0x00000400, "IA32_MCi_CTL_STATUS_ADDR_MISC", Ia32McCtlStatusAddrMiscN, Ia32McCtlStatusAddrMiscN),
640	};
641	int rc = cpumR3MsrApplyFudgeTable(pVM, &s_aFudgeMsrs[0], RT_ELEMENTS(s_aFudgeMsrs));
642	AssertLogRelRCReturn(rc, rc);
643
644	/*
645	* XP might mistake opterons and other newer CPUs for P4s.
646	*/
647	if (pVM->cpum.s.GuestFeatures.uFamily >= 0xf)
648	{
649	static CPUMMSRRANGE const s_aP4FudgeMsrs[] =
650	{
651	MFX(0x0000002c, "P4_EBC_FREQUENCY_ID", IntelP4EbcFrequencyId, IntelP4EbcFrequencyId, 0xf12010f, UINT64_MAX, 0),
652	};
653	rc = cpumR3MsrApplyFudgeTable(pVM, &s_aP4FudgeMsrs[0], RT_ELEMENTS(s_aP4FudgeMsrs));
654	AssertLogRelRCReturn(rc, rc);
655	}
656
657	if (pVM->cpum.s.GuestFeatures.fRdTscP)
658	{
659	static CPUMMSRRANGE const s_aRdTscPFudgeMsrs[] =
660	{
661	MFX(0xc0000103, "AMD64_TSC_AUX", Amd64TscAux, Amd64TscAux, 0, 0, ~(uint64_t)UINT32_MAX),
662	};
663	rc = cpumR3MsrApplyFudgeTable(pVM, &s_aRdTscPFudgeMsrs[0], RT_ELEMENTS(s_aRdTscPFudgeMsrs));
664	AssertLogRelRCReturn(rc, rc);
665	}
666
667	return rc;
668	}
669
670
671	/**
672	* Do we consider @a enmConsider a better match for @a enmTarget than
673	* @a enmFound?
674	*
675	* Only called when @a enmConsider isn't exactly what we're looking for.
676	*
677	* @returns true/false.
678	* @param enmConsider The new microarch to consider.
679	* @param enmTarget The target microarch.
680	* @param enmFound The best microarch match we've found thus far.
681	*/
682	DECLINLINE(bool) cpumR3DbIsBetterMarchMatch(CPUMMICROARCH enmConsider, CPUMMICROARCH enmTarget, CPUMMICROARCH enmFound)
683	{
684	Assert(enmConsider != enmTarget);
685
686	/*
687	* If we've got an march match, don't bother with enmConsider.
688	*/
689	if (enmFound == enmTarget)
690	return false;
691
692	/*
693	* Found is below: Pick 'consider' if it's closer to the target or above it.
694	*/
695	if (enmFound < enmTarget)
696	return enmConsider > enmFound;
697
698	/*
699	* Found is above: Pick 'consider' if it's also above (paranoia: or equal)
700	* and but closer to the target.
701	*/
702	return enmConsider >= enmTarget && enmConsider < enmFound;
703	}
704
705
706	/**
707	* Do we consider @a enmConsider a better match for @a enmTarget than
708	* @a enmFound?
709	*
710	* Only called for intel family 06h CPUs.
711	*
712	* @returns true/false.
713	* @param enmConsider The new microarch to consider.
714	* @param enmTarget The target microarch.
715	* @param enmFound The best microarch match we've found thus far.
716	*/
717	static bool cpumR3DbIsBetterIntelFam06Match(CPUMMICROARCH enmConsider, CPUMMICROARCH enmTarget, CPUMMICROARCH enmFound)
718	{
719	/* Check intel family 06h claims. */
720	AssertReturn(enmConsider >= kCpumMicroarch_Intel_P6_Core_Atom_First && enmConsider <= kCpumMicroarch_Intel_P6_Core_Atom_End,
721	false);
722	AssertReturn(enmTarget >= kCpumMicroarch_Intel_P6_Core_Atom_First && enmTarget <= kCpumMicroarch_Intel_P6_Core_Atom_End,
723	false);
724
725	/* Put matches out of the way. */
726	if (enmConsider == enmTarget)
727	return true;
728	if (enmFound == enmTarget)
729	return false;
730
731	/* If found isn't a family 06h march, whatever we're considering must be a better choice. */
732	if ( enmFound < kCpumMicroarch_Intel_P6_Core_Atom_First
733	\|\| enmFound > kCpumMicroarch_Intel_P6_Core_Atom_End)
734	return true;
735
736	/*
737	* The family 06h stuff is split into three categories:
738	* - Common P6 heritage
739	* - Core
740	* - Atom
741	*
742	* Determin which of the three arguments are Atom marchs, because that's
743	* all we need to make the right choice.
744	*/
745	bool const fConsiderAtom = enmConsider >= kCpumMicroarch_Intel_Atom_First;
746	bool const fTargetAtom = enmTarget >= kCpumMicroarch_Intel_Atom_First;
747	bool const fFoundAtom = enmFound >= kCpumMicroarch_Intel_Atom_First;
748
749	/*
750	* Want atom:
751	*/
752	if (fTargetAtom)
753	{
754	/* Pick the atom if we've got one of each.*/
755	if (fConsiderAtom != fFoundAtom)
756	return fConsiderAtom;
757	/* If we haven't got any atoms under consideration, pick a P6 or the earlier core.
758	Note! Not entirely sure Dothan is the best choice, but it'll do for now. */
759	if (!fConsiderAtom)
760	{
761	if (enmConsider > enmFound)
762	return enmConsider <= kCpumMicroarch_Intel_P6_M_Dothan;
763	return enmFound > kCpumMicroarch_Intel_P6_M_Dothan;
764	}
765	/* else: same category, default comparison rules. */
766	Assert(fConsiderAtom && fFoundAtom);
767	}
768	/*
769	* Want non-atom:
770	*/
771	/* Pick the non-atom if we've got one of each. */
772	else if (fConsiderAtom != fFoundAtom)
773	return fFoundAtom;
774	/* If we've only got atoms under consideration, pick the older one just to pick something. */
775	else if (fConsiderAtom)
776	return enmConsider < enmFound;
777	else
778	Assert(!fConsiderAtom && !fFoundAtom);
779
780	/*
781	* Same basic category. Do same compare as caller.
782	*/
783	return cpumR3DbIsBetterMarchMatch(enmConsider, enmTarget, enmFound);
784	}
785
786
787	int cpumR3DbGetCpuInfo(const char *pszName, PCPUMINFO pInfo)
788	{
789	CPUMDBENTRY const *pEntry = NULL;
790	int rc;
791
792	if (!strcmp(pszName, "host"))
793	{
794	/*
795	* Create a CPU database entry for the host CPU. This means getting
796	* the CPUID bits from the real CPU and grabbing the closest matching
797	* database entry for MSRs.
798	*/
799	rc = CPUMR3CpuIdDetectUnknownLeafMethod(&pInfo->enmUnknownCpuIdMethod, &pInfo->DefCpuId);
800	if (RT_FAILURE(rc))
801	return rc;
802	rc = CPUMR3CpuIdCollectLeaves(&pInfo->paCpuIdLeavesR3, &pInfo->cCpuIdLeaves);
803	if (RT_FAILURE(rc))
804	return rc;
805	pInfo->fMxCsrMask = CPUMR3DeterminHostMxCsrMask();
806
807	/* Lookup database entry for MSRs. */
808	CPUMCPUVENDOR const enmVendor = CPUMR3CpuIdDetectVendorEx(pInfo->paCpuIdLeavesR3[0].uEax,
809	pInfo->paCpuIdLeavesR3[0].uEbx,
810	pInfo->paCpuIdLeavesR3[0].uEcx,
811	pInfo->paCpuIdLeavesR3[0].uEdx);
812	uint32_t const uStd1Eax = pInfo->paCpuIdLeavesR3[1].uEax;
813	uint8_t const uFamily = ASMGetCpuFamily(uStd1Eax);
814	uint8_t const uModel = ASMGetCpuModel(uStd1Eax, enmVendor == CPUMCPUVENDOR_INTEL);
815	uint8_t const uStepping = ASMGetCpuStepping(uStd1Eax);
816	CPUMMICROARCH const enmMicroarch = CPUMR3CpuIdDetermineMicroarchEx(enmVendor, uFamily, uModel, uStepping);
817
818	for (unsigned i = 0; i < RT_ELEMENTS(g_apCpumDbEntries); i++)
819	{
820	CPUMDBENTRY const *pCur = g_apCpumDbEntries[i];
821	if ((CPUMCPUVENDOR)pCur->enmVendor == enmVendor)
822	{
823	/* Match against Family, Microarch, model and stepping. Except
824	for family, always match the closer with preference given to
825	the later/older ones. */
826	if (pCur->uFamily == uFamily)
827	{
828	if (pCur->enmMicroarch == enmMicroarch)
829	{
830	if (pCur->uModel == uModel)
831	{
832	if (pCur->uStepping == uStepping)
833	{
834	/* Perfect match. */
835	pEntry = pCur;
836	break;
837	}
838
839	if ( !pEntry
840	\|\| pEntry->uModel != uModel
841	\|\| pEntry->enmMicroarch != enmMicroarch
842	\|\| pEntry->uFamily != uFamily)
843	pEntry = pCur;
844	else if ( pCur->uStepping >= uStepping
845	? pCur->uStepping < pEntry->uStepping \|\| pEntry->uStepping < uStepping
846	: pCur->uStepping > pEntry->uStepping)
847	pEntry = pCur;
848	}
849	else if ( !pEntry
850	\|\| pEntry->enmMicroarch != enmMicroarch
851	\|\| pEntry->uFamily != uFamily)
852	pEntry = pCur;
853	else if ( pCur->uModel >= uModel
854	? pCur->uModel < pEntry->uModel \|\| pEntry->uModel < uModel
855	: pCur->uModel > pEntry->uModel)
856	pEntry = pCur;
857	}
858	else if ( !pEntry
859	\|\| pEntry->uFamily != uFamily)
860	pEntry = pCur;
861	/* Special march matching rules applies to intel family 06h. */
862	else if ( enmVendor == CPUMCPUVENDOR_INTEL
863	&& uFamily == 6
864	? cpumR3DbIsBetterIntelFam06Match(pCur->enmMicroarch, enmMicroarch, pEntry->enmMicroarch)
865	: cpumR3DbIsBetterMarchMatch(pCur->enmMicroarch, enmMicroarch, pEntry->enmMicroarch))
866	pEntry = pCur;
867	}
868	/* We don't do closeness matching on family, we use the first
869	entry for the CPU vendor instead. (P4 workaround.) */
870	else if (!pEntry)
871	pEntry = pCur;
872	}
873	}
874
875	if (pEntry)
876	LogRel(("CPUM: Matched host CPU %s %#x/%#x/%#x %s with CPU DB entry '%s' (%s %#x/%#x/%#x %s)\n",
877	CPUMR3CpuVendorName(enmVendor), uFamily, uModel, uStepping, CPUMR3MicroarchName(enmMicroarch),
878	pEntry->pszName, CPUMR3CpuVendorName((CPUMCPUVENDOR)pEntry->enmVendor), pEntry->uFamily, pEntry->uModel,
879	pEntry->uStepping, CPUMR3MicroarchName(pEntry->enmMicroarch) ));
880	else
881	{
882	pEntry = g_apCpumDbEntries[0];
883	LogRel(("CPUM: No matching processor database entry %s %#x/%#x/%#x %s, falling back on '%s'\n",
884	CPUMR3CpuVendorName(enmVendor), uFamily, uModel, uStepping, CPUMR3MicroarchName(enmMicroarch),
885	pEntry->pszName));
886	}
887	}
888	else
889	{
890	/*
891	* We're supposed to be emulating a specific CPU that is included in
892	* our CPU database. The CPUID tables needs to be copied onto the
893	* heap so the caller can modify them and so they can be freed like
894	* in the host case above.
895	*/
896	for (unsigned i = 0; i < RT_ELEMENTS(g_apCpumDbEntries); i++)
897	if (!strcmp(pszName, g_apCpumDbEntries[i]->pszName))
898	{
899	pEntry = g_apCpumDbEntries[i];
900	break;
901	}
902	if (!pEntry)
903	{
904	LogRel(("CPUM: Cannot locate any CPU by the name '%s'\n", pszName));
905	return VERR_CPUM_DB_CPU_NOT_FOUND;
906	}
907
908	pInfo->cCpuIdLeaves = pEntry->cCpuIdLeaves;
909	if (pEntry->cCpuIdLeaves)
910	{
911	/* Must allocate a multiple of 16 here, matching cpumR3CpuIdEnsureSpace. */
912	size_t cbExtra = sizeof(pEntry->paCpuIdLeaves[0]) * (RT_ALIGN(pEntry->cCpuIdLeaves, 16) - pEntry->cCpuIdLeaves);
913	pInfo->paCpuIdLeavesR3 = (PCPUMCPUIDLEAF)RTMemDupEx(pEntry->paCpuIdLeaves,
914	sizeof(pEntry->paCpuIdLeaves[0]) * pEntry->cCpuIdLeaves,
915	cbExtra);
916	if (!pInfo->paCpuIdLeavesR3)
917	return VERR_NO_MEMORY;
918	}
919	else
920	pInfo->paCpuIdLeavesR3 = NULL;
921
922	pInfo->enmUnknownCpuIdMethod = pEntry->enmUnknownCpuId;
923	pInfo->DefCpuId = pEntry->DefUnknownCpuId;
924	pInfo->fMxCsrMask = pEntry->fMxCsrMask;
925
926	LogRel(("CPUM: Using CPU DB entry '%s' (%s %#x/%#x/%#x %s)\n",
927	pEntry->pszName, CPUMR3CpuVendorName((CPUMCPUVENDOR)pEntry->enmVendor),
928	pEntry->uFamily, pEntry->uModel, pEntry->uStepping, CPUMR3MicroarchName(pEntry->enmMicroarch) ));
929	}
930
931	pInfo->fMsrMask = pEntry->fMsrMask;
932	pInfo->iFirstExtCpuIdLeaf = 0; /* Set by caller. */
933	pInfo->uScalableBusFreq = pEntry->uScalableBusFreq;
934	pInfo->paCpuIdLeavesR0 = NIL_RTR0PTR;
935	pInfo->paMsrRangesR0 = NIL_RTR0PTR;
936	pInfo->paCpuIdLeavesRC = NIL_RTRCPTR;
937	pInfo->paMsrRangesRC = NIL_RTRCPTR;
938
939	/*
940	* Copy the MSR range.
941	*/
942	uint32_t cMsrs = 0;
943	PCPUMMSRRANGE paMsrs = NULL;
944
945	PCCPUMMSRRANGE pCurMsr = pEntry->paMsrRanges;
946	uint32_t cLeft = pEntry->cMsrRanges;
947	while (cLeft-- > 0)
948	{
949	rc = cpumR3MsrRangesInsert(NULL /* pVM */, &paMsrs, &cMsrs, pCurMsr);
950	if (RT_FAILURE(rc))
951	{
952	Assert(!paMsrs); /* The above function frees this. */
953	RTMemFree(pInfo->paCpuIdLeavesR3);
954	pInfo->paCpuIdLeavesR3 = NULL;
955	return rc;
956	}
957	pCurMsr++;
958	}
959
960	pInfo->paMsrRangesR3 = paMsrs;
961	pInfo->cMsrRanges = cMsrs;
962	return VINF_SUCCESS;
963	}
964
965
966	/**
967	* Insert an MSR range into the VM.
968	*
969	* If the new MSR range overlaps existing ranges, the existing ones will be
970	* adjusted/removed to fit in the new one.
971	*
972	* @returns VBox status code.
973	* @param pVM The cross context VM structure.
974	* @param pNewRange Pointer to the MSR range being inserted.
975	*/
976	VMMR3DECL(int) CPUMR3MsrRangesInsert(PVM pVM, PCCPUMMSRRANGE pNewRange)
977	{
978	AssertReturn(pVM, VERR_INVALID_PARAMETER);
979	AssertReturn(pNewRange, VERR_INVALID_PARAMETER);
980
981	return cpumR3MsrRangesInsert(pVM, NULL /* ppaMsrRanges /, NULL / pcMsrRanges */, pNewRange);
982	}
983
984
985	/**
986	* Register statistics for the MSRs.
987	*
988	* This must not be called before the MSRs have been finalized and moved to the
989	* hyper heap.
990	*
991	* @returns VBox status code.
992	* @param pVM The cross context VM structure.
993	*/
994	int cpumR3MsrRegStats(PVM pVM)
995	{
996	/*
997	* Global statistics.
998	*/
999	PCPUM pCpum = &pVM->cpum.s;
1000	STAM_REL_REG(pVM, &pCpum->cMsrReads, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/Reads",
1001	STAMUNIT_OCCURENCES, "All RDMSRs making it to CPUM.");
1002	STAM_REL_REG(pVM, &pCpum->cMsrReadsRaiseGp, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/ReadsRaisingGP",
1003	STAMUNIT_OCCURENCES, "RDMSR raising #GPs, except unknown MSRs.");
1004	STAM_REL_REG(pVM, &pCpum->cMsrReadsUnknown, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/ReadsUnknown",
1005	STAMUNIT_OCCURENCES, "RDMSR on unknown MSRs (raises #GP).");
1006	STAM_REL_REG(pVM, &pCpum->cMsrWrites, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/Writes",
1007	STAMUNIT_OCCURENCES, "All RDMSRs making it to CPUM.");
1008	STAM_REL_REG(pVM, &pCpum->cMsrWritesRaiseGp, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/WritesRaisingGP",
1009	STAMUNIT_OCCURENCES, "WRMSR raising #GPs, except unknown MSRs.");
1010	STAM_REL_REG(pVM, &pCpum->cMsrWritesToIgnoredBits, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/WritesToIgnoredBits",
1011	STAMUNIT_OCCURENCES, "Writing of ignored bits.");
1012	STAM_REL_REG(pVM, &pCpum->cMsrWritesUnknown, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/WritesUnknown",
1013	STAMUNIT_OCCURENCES, "WRMSR on unknown MSRs (raises #GP).");
1014
1015
1016	# ifdef VBOX_WITH_STATISTICS
1017	/*
1018	* Per range.
1019	*/
1020	PCPUMMSRRANGE paRanges = pVM->cpum.s.GuestInfo.paMsrRangesR3;
1021	uint32_t cRanges = pVM->cpum.s.GuestInfo.cMsrRanges;
1022	for (uint32_t i = 0; i < cRanges; i++)
1023	{
1024	char szName[160];
1025	ssize_t cchName;
1026
1027	if (paRanges[i].uFirst == paRanges[i].uLast)
1028	cchName = RTStrPrintf(szName, sizeof(szName), "/CPUM/MSRs/%#010x-%s",
1029	paRanges[i].uFirst, paRanges[i].szName);
1030	else
1031	cchName = RTStrPrintf(szName, sizeof(szName), "/CPUM/MSRs/%#010x-%#010x-%s",
1032	paRanges[i].uFirst, paRanges[i].uLast, paRanges[i].szName);
1033
1034	RTStrCopy(&szName[cchName], sizeof(szName) - cchName, "-reads");
1035	STAMR3Register(pVM, &paRanges[i].cReads, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_OCCURENCES, "RDMSR");
1036
1037	RTStrCopy(&szName[cchName], sizeof(szName) - cchName, "-writes");
1038	STAMR3Register(pVM, &paRanges[i].cWrites, STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "WRMSR");
1039
1040	RTStrCopy(&szName[cchName], sizeof(szName) - cchName, "-GPs");
1041	STAMR3Register(pVM, &paRanges[i].cGps, STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "#GPs");
1042
1043	RTStrCopy(&szName[cchName], sizeof(szName) - cchName, "-ign-bits-writes");
1044	STAMR3Register(pVM, &paRanges[i].cIgnoredBits, STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "WRMSR w/ ignored bits");
1045	}
1046	# endif /* VBOX_WITH_STATISTICS */
1047
1048	return VINF_SUCCESS;
1049	}
1050
1051	#endif /* !CPUM_DB_STANDALONE */
1052

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source: vbox/trunk/src/VBox/VMM/VMMR3/CPUMR3Db.cpp@ 68155

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