CPUMR3Db.cpp@ 76768

Last change on this file since 76768 was 76678, checked in by vboxsync, 6 years ago
Port r124260, r124263, r124271, r124273, r124277, r124278, r124279, r124284, r124285, r124286, r124287, r124288, r124289 and r124290 (Ported fixes over from 5.2, see bugref:9179 for more information)
Property svn:eol-style set to `native` Property svn:keywords set to `Author Date Id Revision`
File size: 44.2 KB

Line
1	/* $Id: CPUMR3Db.cpp 76678 2019-01-07 13:48:16Z vboxsync $ */
2	/** @file
3	* CPUM - CPU database part.
4	*/
5
6	/*
7	* Copyright (C) 2013-2019 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_Core2_X6800_2_93GHz.h"
197	#include "cpus/Intel_Core2_T7600_2_33GHz.h"
198	#include "cpus/Intel_Core_Duo_T2600_2_16GHz.h"
199	#include "cpus/Intel_Pentium_M_processor_2_00GHz.h"
200	#include "cpus/Intel_Pentium_4_3_00GHz.h"
201	#include "cpus/Intel_Pentium_N3530_2_16GHz.h"
202	#include "cpus/Intel_Atom_330_1_60GHz.h"
203	#include "cpus/Intel_80486.h"
204	#include "cpus/Intel_80386.h"
205	#include "cpus/Intel_80286.h"
206	#include "cpus/Intel_80186.h"
207	#include "cpus/Intel_8086.h"
208
209	#include "cpus/AMD_FX_8150_Eight_Core.h"
210	#include "cpus/AMD_Phenom_II_X6_1100T.h"
211	#include "cpus/Quad_Core_AMD_Opteron_2384.h"
212	#include "cpus/AMD_Athlon_64_X2_Dual_Core_4200.h"
213	#include "cpus/AMD_Athlon_64_3200.h"
214
215	#include "cpus/VIA_QuadCore_L4700_1_2_GHz.h"
216
217
218
219	/**
220	* The database entries.
221	*
222	* 1. The first entry is special. It is the fallback for unknown
223	* processors. Thus, it better be pretty representative.
224	*
225	* 2. The first entry for a CPU vendor is likewise important as it is
226	* the default entry for that vendor.
227	*
228	* Generally we put the most recent CPUs first, since these tend to have the
229	* most complicated and backwards compatible list of MSRs.
230	*/
231	static CPUMDBENTRY const * const g_apCpumDbEntries[] =
232	{
233	#ifdef VBOX_CPUDB_Intel_Core_i7_6700K_h
234	&g_Entry_Intel_Core_i7_6700K,
235	#endif
236	#ifdef VBOX_CPUDB_Intel_Core_i7_5600U_h
237	&g_Entry_Intel_Core_i7_5600U,
238	#endif
239	#ifdef VBOX_CPUDB_Intel_Core_i5_3570_h
240	&g_Entry_Intel_Core_i5_3570,
241	#endif
242	#ifdef VBOX_CPUDB_Intel_Core_i7_3960X_h
243	&g_Entry_Intel_Core_i7_3960X,
244	#endif
245	#ifdef VBOX_CPUDB_Intel_Core_i7_2635QM_h
246	&g_Entry_Intel_Core_i7_2635QM,
247	#endif
248	#ifdef VBOX_CPUDB_Intel_Pentium_N3530_2_16GHz_h
249	&g_Entry_Intel_Pentium_N3530_2_16GHz,
250	#endif
251	#ifdef VBOX_CPUDB_Intel_Atom_330_1_60GHz_h
252	&g_Entry_Intel_Atom_330_1_60GHz,
253	#endif
254	#ifdef VBOX_CPUDB_Intel_Pentium_M_processor_2_00GHz_h
255	&g_Entry_Intel_Pentium_M_processor_2_00GHz,
256	#endif
257	#ifdef VBOX_CPUDB_Intel_Xeon_X5482_3_20GHz_h
258	&g_Entry_Intel_Xeon_X5482_3_20GHz,
259	#endif
260	#ifdef VBOX_CPUDB_Intel_Core2_X6800_2_93GHz_h
261	&g_Entry_Intel_Core2_X6800_2_93GHz,
262	#endif
263	#ifdef VBOX_CPUDB_Intel_Core2_T7600_2_33GHz_h
264	&g_Entry_Intel_Core2_T7600_2_33GHz,
265	#endif
266	#ifdef VBOX_CPUDB_Intel_Core_Duo_T2600_2_16GHz_h
267	&g_Entry_Intel_Core_Duo_T2600_2_16GHz,
268	#endif
269	#ifdef VBOX_CPUDB_Intel_Pentium_4_3_00GHz_h
270	&g_Entry_Intel_Pentium_4_3_00GHz,
271	#endif
272	#ifdef VBOX_CPUDB_Intel_Pentium_4_3_00GHz_h
273	&g_Entry_Intel_Pentium_4_3_00GHz,
274	#endif
275	/** @todo pentium, pentium mmx, pentium pro, pentium II, pentium III */
276	#ifdef VBOX_CPUDB_Intel_80486_h
277	&g_Entry_Intel_80486,
278	#endif
279	#ifdef VBOX_CPUDB_Intel_80386_h
280	&g_Entry_Intel_80386,
281	#endif
282	#ifdef VBOX_CPUDB_Intel_80286_h
283	&g_Entry_Intel_80286,
284	#endif
285	#ifdef VBOX_CPUDB_Intel_80186_h
286	&g_Entry_Intel_80186,
287	#endif
288	#ifdef VBOX_CPUDB_Intel_8086_h
289	&g_Entry_Intel_8086,
290	#endif
291
292	#ifdef VBOX_CPUDB_AMD_FX_8150_Eight_Core_h
293	&g_Entry_AMD_FX_8150_Eight_Core,
294	#endif
295	#ifdef VBOX_CPUDB_AMD_Phenom_II_X6_1100T_h
296	&g_Entry_AMD_Phenom_II_X6_1100T,
297	#endif
298	#ifdef VBOX_CPUDB_Quad_Core_AMD_Opteron_2384_h
299	&g_Entry_Quad_Core_AMD_Opteron_2384,
300	#endif
301	#ifdef VBOX_CPUDB_AMD_Athlon_64_X2_Dual_Core_4200_h
302	&g_Entry_AMD_Athlon_64_X2_Dual_Core_4200,
303	#endif
304	#ifdef VBOX_CPUDB_AMD_Athlon_64_3200_h
305	&g_Entry_AMD_Athlon_64_3200,
306	#endif
307
308	#ifdef VBOX_CPUDB_VIA_QuadCore_L4700_1_2_GHz_h
309	&g_Entry_VIA_QuadCore_L4700_1_2_GHz,
310	#endif
311
312	#ifdef VBOX_CPUDB_NEC_V20_h
313	&g_Entry_NEC_V20,
314	#endif
315	};
316
317
318
319	/**
320	* Binary search used by cpumR3MsrRangesInsert and has some special properties
321	* wrt to mismatches.
322	*
323	* @returns Insert location.
324	* @param paMsrRanges The MSR ranges to search.
325	* @param cMsrRanges The number of MSR ranges.
326	* @param uMsr What to search for.
327	*/
328	static uint32_t cpumR3MsrRangesBinSearch(PCCPUMMSRRANGE paMsrRanges, uint32_t cMsrRanges, uint32_t uMsr)
329	{
330	if (!cMsrRanges)
331	return 0;
332
333	uint32_t iStart = 0;
334	uint32_t iLast = cMsrRanges - 1;
335	for (;;)
336	{
337	uint32_t i = iStart + (iLast - iStart + 1) / 2;
338	if ( uMsr >= paMsrRanges[i].uFirst
339	&& uMsr <= paMsrRanges[i].uLast)
340	return i;
341	if (uMsr < paMsrRanges[i].uFirst)
342	{
343	if (i <= iStart)
344	return i;
345	iLast = i - 1;
346	}
347	else
348	{
349	if (i >= iLast)
350	{
351	if (i < cMsrRanges)
352	i++;
353	return i;
354	}
355	iStart = i + 1;
356	}
357	}
358	}
359
360
361	/**
362	* Ensures that there is space for at least @a cNewRanges in the table,
363	* reallocating the table if necessary.
364	*
365	* @returns Pointer to the MSR ranges on success, NULL on failure. On failure
366	* @a *ppaMsrRanges is freed and set to NULL.
367	* @param pVM The cross context VM structure. If NULL,
368	* use the process heap, otherwise the VM's hyper heap.
369	* @param ppaMsrRanges The variable pointing to the ranges (input/output).
370	* @param cMsrRanges The current number of ranges.
371	* @param cNewRanges The number of ranges to be added.
372	*/
373	static PCPUMMSRRANGE cpumR3MsrRangesEnsureSpace(PVM pVM, PCPUMMSRRANGE *ppaMsrRanges, uint32_t cMsrRanges, uint32_t cNewRanges)
374	{
375	uint32_t cMsrRangesAllocated;
376	if (!pVM)
377	cMsrRangesAllocated = RT_ALIGN_32(cMsrRanges, 16);
378	else
379	{
380	/*
381	* We're using the hyper heap now, but when the range array was copied over to it from
382	* the host-context heap, we only copy the exact size and not the ensured size.
383	* See @bugref{7270}.
384	*/
385	cMsrRangesAllocated = cMsrRanges;
386	}
387	if (cMsrRangesAllocated < cMsrRanges + cNewRanges)
388	{
389	void *pvNew;
390	uint32_t cNew = RT_ALIGN_32(cMsrRanges + cNewRanges, 16);
391	if (pVM)
392	{
393	Assert(ppaMsrRanges == &pVM->cpum.s.GuestInfo.paMsrRangesR3);
394	Assert(cMsrRanges == pVM->cpum.s.GuestInfo.cMsrRanges);
395
396	size_t cb = cMsrRangesAllocated * sizeof(**ppaMsrRanges);
397	size_t cbNew = cNew * sizeof(**ppaMsrRanges);
398	int rc = MMR3HyperRealloc(pVM, *ppaMsrRanges, cb, 32, MM_TAG_CPUM_MSRS, cbNew, &pvNew);
399	if (RT_FAILURE(rc))
400	{
401	*ppaMsrRanges = NULL;
402	pVM->cpum.s.GuestInfo.paMsrRangesR0 = NIL_RTR0PTR;
403	pVM->cpum.s.GuestInfo.paMsrRangesRC = NIL_RTRCPTR;
404	LogRel(("CPUM: cpumR3MsrRangesEnsureSpace: MMR3HyperRealloc failed. rc=%Rrc\n", rc));
405	return NULL;
406	}
407	*ppaMsrRanges = (PCPUMMSRRANGE)pvNew;
408	}
409	else
410	{
411	pvNew = RTMemRealloc(ppaMsrRanges, cNew sizeof(**ppaMsrRanges));
412	if (!pvNew)
413	{
414	RTMemFree(*ppaMsrRanges);
415	*ppaMsrRanges = NULL;
416	return NULL;
417	}
418	}
419	*ppaMsrRanges = (PCPUMMSRRANGE)pvNew;
420	}
421
422	if (pVM)
423	{
424	/* Update R0 and RC pointers. */
425	Assert(ppaMsrRanges == &pVM->cpum.s.GuestInfo.paMsrRangesR3);
426	pVM->cpum.s.GuestInfo.paMsrRangesR0 = MMHyperR3ToR0(pVM, *ppaMsrRanges);
427	pVM->cpum.s.GuestInfo.paMsrRangesRC = MMHyperR3ToRC(pVM, *ppaMsrRanges);
428	}
429
430	return *ppaMsrRanges;
431	}
432
433
434	/**
435	* Inserts a new MSR range in into an sorted MSR range array.
436	*
437	* If the new MSR range overlaps existing ranges, the existing ones will be
438	* adjusted/removed to fit in the new one.
439	*
440	* @returns VBox status code.
441	* @retval VINF_SUCCESS
442	* @retval VERR_NO_MEMORY
443	*
444	* @param pVM The cross context VM structure. If NULL,
445	* use the process heap, otherwise the VM's hyper heap.
446	* @param ppaMsrRanges The variable pointing to the ranges (input/output).
447	* Must be NULL if using the hyper heap.
448	* @param pcMsrRanges The variable holding number of ranges. Must be NULL
449	* if using the hyper heap.
450	* @param pNewRange The new range.
451	*/
452	int cpumR3MsrRangesInsert(PVM pVM, PCPUMMSRRANGE ppaMsrRanges, uint32_t pcMsrRanges, PCCPUMMSRRANGE pNewRange)
453	{
454	Assert(pNewRange->uLast >= pNewRange->uFirst);
455	Assert(pNewRange->enmRdFn > kCpumMsrRdFn_Invalid && pNewRange->enmRdFn < kCpumMsrRdFn_End);
456	Assert(pNewRange->enmWrFn > kCpumMsrWrFn_Invalid && pNewRange->enmWrFn < kCpumMsrWrFn_End);
457
458	/*
459	* Validate and use the VM's MSR ranges array if we are using the hyper heap.
460	*/
461	if (pVM)
462	{
463	AssertReturn(!ppaMsrRanges, VERR_INVALID_PARAMETER);
464	AssertReturn(!pcMsrRanges, VERR_INVALID_PARAMETER);
465
466	ppaMsrRanges = &pVM->cpum.s.GuestInfo.paMsrRangesR3;
467	pcMsrRanges = &pVM->cpum.s.GuestInfo.cMsrRanges;
468	}
469	else
470	{
471	AssertReturn(ppaMsrRanges, VERR_INVALID_POINTER);
472	AssertReturn(pcMsrRanges, VERR_INVALID_POINTER);
473	}
474
475	uint32_t cMsrRanges = *pcMsrRanges;
476	PCPUMMSRRANGE paMsrRanges = *ppaMsrRanges;
477
478	/*
479	* Optimize the linear insertion case where we add new entries at the end.
480	*/
481	if ( cMsrRanges > 0
482	&& paMsrRanges[cMsrRanges - 1].uLast < pNewRange->uFirst)
483	{
484	paMsrRanges = cpumR3MsrRangesEnsureSpace(pVM, ppaMsrRanges, cMsrRanges, 1);
485	if (!paMsrRanges)
486	return VERR_NO_MEMORY;
487	paMsrRanges[cMsrRanges] = *pNewRange;
488	*pcMsrRanges += 1;
489	}
490	else
491	{
492	uint32_t i = cpumR3MsrRangesBinSearch(paMsrRanges, cMsrRanges, pNewRange->uFirst);
493	Assert(i == cMsrRanges \|\| pNewRange->uFirst <= paMsrRanges[i].uLast);
494	Assert(i == 0 \|\| pNewRange->uFirst > paMsrRanges[i - 1].uLast);
495
496	/*
497	* Adding an entirely new entry?
498	*/
499	if ( i >= cMsrRanges
500	\|\| pNewRange->uLast < paMsrRanges[i].uFirst)
501	{
502	paMsrRanges = cpumR3MsrRangesEnsureSpace(pVM, ppaMsrRanges, cMsrRanges, 1);
503	if (!paMsrRanges)
504	return VERR_NO_MEMORY;
505	if (i < cMsrRanges)
506	memmove(&paMsrRanges[i + 1], &paMsrRanges[i], (cMsrRanges - i) * sizeof(paMsrRanges[0]));
507	paMsrRanges[i] = *pNewRange;
508	*pcMsrRanges += 1;
509	}
510	/*
511	* Replace existing entry?
512	*/
513	else if ( pNewRange->uFirst == paMsrRanges[i].uFirst
514	&& pNewRange->uLast == paMsrRanges[i].uLast)
515	paMsrRanges[i] = *pNewRange;
516	/*
517	* Splitting an existing entry?
518	*/
519	else if ( pNewRange->uFirst > paMsrRanges[i].uFirst
520	&& pNewRange->uLast < paMsrRanges[i].uLast)
521	{
522	paMsrRanges = cpumR3MsrRangesEnsureSpace(pVM, ppaMsrRanges, cMsrRanges, 2);
523	if (!paMsrRanges)
524	return VERR_NO_MEMORY;
525	if (i < cMsrRanges)
526	memmove(&paMsrRanges[i + 2], &paMsrRanges[i], (cMsrRanges - i) * sizeof(paMsrRanges[0]));
527	paMsrRanges[i + 1] = *pNewRange;
528	paMsrRanges[i + 2] = paMsrRanges[i];
529	paMsrRanges[i ].uLast = pNewRange->uFirst - 1;
530	paMsrRanges[i + 2].uFirst = pNewRange->uLast + 1;
531	*pcMsrRanges += 2;
532	}
533	/*
534	* Complicated scenarios that can affect more than one range.
535	*
536	* The current code does not optimize memmove calls when replacing
537	* one or more existing ranges, because it's tedious to deal with and
538	* not expected to be a frequent usage scenario.
539	*/
540	else
541	{
542	/* Adjust start of first match? */
543	if ( pNewRange->uFirst <= paMsrRanges[i].uFirst
544	&& pNewRange->uLast < paMsrRanges[i].uLast)
545	paMsrRanges[i].uFirst = pNewRange->uLast + 1;
546	else
547	{
548	/* Adjust end of first match? */
549	if (pNewRange->uFirst > paMsrRanges[i].uFirst)
550	{
551	Assert(paMsrRanges[i].uLast >= pNewRange->uFirst);
552	paMsrRanges[i].uLast = pNewRange->uFirst - 1;
553	i++;
554	}
555	/* Replace the whole first match (lazy bird). */
556	else
557	{
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	/* Do the new range affect more ranges? */
564	while ( i < cMsrRanges
565	&& pNewRange->uLast >= paMsrRanges[i].uFirst)
566	{
567	if (pNewRange->uLast < paMsrRanges[i].uLast)
568	{
569	/* Adjust the start of it, then we're done. */
570	paMsrRanges[i].uFirst = pNewRange->uLast + 1;
571	break;
572	}
573
574	/* Remove it entirely. */
575	if (i + 1 < cMsrRanges)
576	memmove(&paMsrRanges[i], &paMsrRanges[i + 1], (cMsrRanges - i - 1) * sizeof(paMsrRanges[0]));
577	cMsrRanges = *pcMsrRanges -= 1;
578	}
579	}
580
581	/* Now, perform a normal insertion. */
582	paMsrRanges = cpumR3MsrRangesEnsureSpace(pVM, ppaMsrRanges, cMsrRanges, 1);
583	if (!paMsrRanges)
584	return VERR_NO_MEMORY;
585	if (i < cMsrRanges)
586	memmove(&paMsrRanges[i + 1], &paMsrRanges[i], (cMsrRanges - i) * sizeof(paMsrRanges[0]));
587	paMsrRanges[i] = *pNewRange;
588	*pcMsrRanges += 1;
589	}
590	}
591
592	return VINF_SUCCESS;
593	}
594
595
596	/**
597	* Reconciles CPUID info with MSRs (selected ones).
598	*
599	* @returns VBox status code.
600	* @param pVM The cross context VM structure.
601	*/
602	int cpumR3MsrReconcileWithCpuId(PVM pVM)
603	{
604	PCCPUMMSRRANGE papToAdd[10];
605	uint32_t cToAdd = 0;
606
607	/*
608	* The IA32_FLUSH_CMD MSR was introduced in MCUs for CVS-2018-3646 and associates.
609	*/
610	if (pVM->cpum.s.GuestFeatures.fFlushCmd && !cpumLookupMsrRange(pVM, MSR_IA32_FLUSH_CMD))
611	{
612	static CPUMMSRRANGE const s_FlushCmd =
613	{
614	/.uFirst =/ MSR_IA32_FLUSH_CMD,
615	/.uLast =/ MSR_IA32_FLUSH_CMD,
616	/.enmRdFn =/ kCpumMsrRdFn_WriteOnly,
617	/.enmWrFn =/ kCpumMsrWrFn_Ia32FlushCmd,
618	/.offCpumCpu =/ UINT16_MAX,
619	/.fReserved =/ 0,
620	/.uValue =/ 0,
621	/.fWrIgnMask =/ 0,
622	/.fWrGpMask =/ ~MSR_IA32_FLUSH_CMD_F_L1D,
623	/.szName = / "IA32_FLUSH_CMD"
624	};
625	papToAdd[cToAdd++] = &s_FlushCmd;
626	}
627
628	/*
629	* Do the adding.
630	*/
631	for (uint32_t i = 0; i < cToAdd; i++)
632	{
633	PCCPUMMSRRANGE pRange = papToAdd[i];
634	LogRel(("CPUM: MSR/CPUID reconciliation insert: %#010x %s\n", pRange->uFirst, pRange->szName));
635	int rc = cpumR3MsrRangesInsert(NULL /* pVM */, &pVM->cpum.s.GuestInfo.paMsrRangesR3, &pVM->cpum.s.GuestInfo.cMsrRanges,
636	pRange);
637	if (RT_FAILURE(rc))
638	return rc;
639	}
640	return VINF_SUCCESS;
641	}
642
643
644	/**
645	* Worker for cpumR3MsrApplyFudge that applies one table.
646	*
647	* @returns VBox status code.
648	* @param pVM The cross context VM structure.
649	* @param paRanges Array of MSRs to fudge.
650	* @param cRanges Number of MSRs in the array.
651	*/
652	static int cpumR3MsrApplyFudgeTable(PVM pVM, PCCPUMMSRRANGE paRanges, size_t cRanges)
653	{
654	for (uint32_t i = 0; i < cRanges; i++)
655	if (!cpumLookupMsrRange(pVM, paRanges[i].uFirst))
656	{
657	LogRel(("CPUM: MSR fudge: %#010x %s\n", paRanges[i].uFirst, paRanges[i].szName));
658	int rc = cpumR3MsrRangesInsert(NULL /* pVM */, &pVM->cpum.s.GuestInfo.paMsrRangesR3, &pVM->cpum.s.GuestInfo.cMsrRanges,
659	&paRanges[i]);
660	if (RT_FAILURE(rc))
661	return rc;
662	}
663	return VINF_SUCCESS;
664	}
665
666
667	/**
668	* Fudges the MSRs that guest are known to access in some odd cases.
669	*
670	* A typical example is a VM that has been moved between different hosts where
671	* for instance the cpu vendor differs.
672	*
673	* Another example is older CPU profiles (e.g. Atom Bonnet) for newer CPUs (e.g.
674	* Atom Silvermont), where features reported thru CPUID aren't present in the
675	* MSRs (e.g. AMD64_TSC_AUX).
676	*
677	*
678	* @returns VBox status code.
679	* @param pVM The cross context VM structure.
680	*/
681	int cpumR3MsrApplyFudge(PVM pVM)
682	{
683	/*
684	* Basic.
685	*/
686	static CPUMMSRRANGE const s_aFudgeMsrs[] =
687	{
688	MFO(0x00000000, "IA32_P5_MC_ADDR", Ia32P5McAddr),
689	MFX(0x00000001, "IA32_P5_MC_TYPE", Ia32P5McType, Ia32P5McType, 0, 0, UINT64_MAX),
690	MVO(0x00000017, "IA32_PLATFORM_ID", 0),
691	MFN(0x0000001b, "IA32_APIC_BASE", Ia32ApicBase, Ia32ApicBase),
692	MVI(0x0000008b, "BIOS_SIGN", 0),
693	MFX(0x000000fe, "IA32_MTRRCAP", Ia32MtrrCap, ReadOnly, 0x508, 0, 0),
694	MFX(0x00000179, "IA32_MCG_CAP", Ia32McgCap, ReadOnly, 0x005, 0, 0),
695	MFX(0x0000017a, "IA32_MCG_STATUS", Ia32McgStatus, Ia32McgStatus, 0, ~(uint64_t)UINT32_MAX, 0),
696	MFN(0x000001a0, "IA32_MISC_ENABLE", Ia32MiscEnable, Ia32MiscEnable),
697	MFN(0x000001d9, "IA32_DEBUGCTL", Ia32DebugCtl, Ia32DebugCtl),
698	MFO(0x000001db, "P6_LAST_BRANCH_FROM_IP", P6LastBranchFromIp),
699	MFO(0x000001dc, "P6_LAST_BRANCH_TO_IP", P6LastBranchToIp),
700	MFO(0x000001dd, "P6_LAST_INT_FROM_IP", P6LastIntFromIp),
701	MFO(0x000001de, "P6_LAST_INT_TO_IP", P6LastIntToIp),
702	MFS(0x00000277, "IA32_PAT", Ia32Pat, Ia32Pat, Guest.msrPAT),
703	MFZ(0x000002ff, "IA32_MTRR_DEF_TYPE", Ia32MtrrDefType, Ia32MtrrDefType, GuestMsrs.msr.MtrrDefType, 0, ~(uint64_t)0xc07),
704	MFN(0x00000400, "IA32_MCi_CTL_STATUS_ADDR_MISC", Ia32McCtlStatusAddrMiscN, Ia32McCtlStatusAddrMiscN),
705	};
706	int rc = cpumR3MsrApplyFudgeTable(pVM, &s_aFudgeMsrs[0], RT_ELEMENTS(s_aFudgeMsrs));
707	AssertLogRelRCReturn(rc, rc);
708
709	/*
710	* XP might mistake opterons and other newer CPUs for P4s.
711	*/
712	if (pVM->cpum.s.GuestFeatures.uFamily >= 0xf)
713	{
714	static CPUMMSRRANGE const s_aP4FudgeMsrs[] =
715	{
716	MFX(0x0000002c, "P4_EBC_FREQUENCY_ID", IntelP4EbcFrequencyId, IntelP4EbcFrequencyId, 0xf12010f, UINT64_MAX, 0),
717	};
718	rc = cpumR3MsrApplyFudgeTable(pVM, &s_aP4FudgeMsrs[0], RT_ELEMENTS(s_aP4FudgeMsrs));
719	AssertLogRelRCReturn(rc, rc);
720	}
721
722	if (pVM->cpum.s.GuestFeatures.fRdTscP)
723	{
724	static CPUMMSRRANGE const s_aRdTscPFudgeMsrs[] =
725	{
726	MFX(0xc0000103, "AMD64_TSC_AUX", Amd64TscAux, Amd64TscAux, 0, 0, ~(uint64_t)UINT32_MAX),
727	};
728	rc = cpumR3MsrApplyFudgeTable(pVM, &s_aRdTscPFudgeMsrs[0], RT_ELEMENTS(s_aRdTscPFudgeMsrs));
729	AssertLogRelRCReturn(rc, rc);
730	}
731
732	return rc;
733	}
734
735
736	/**
737	* Do we consider @a enmConsider a better match for @a enmTarget than
738	* @a enmFound?
739	*
740	* Only called when @a enmConsider isn't exactly what we're looking for.
741	*
742	* @returns true/false.
743	* @param enmConsider The new microarch to consider.
744	* @param enmTarget The target microarch.
745	* @param enmFound The best microarch match we've found thus far.
746	*/
747	DECLINLINE(bool) cpumR3DbIsBetterMarchMatch(CPUMMICROARCH enmConsider, CPUMMICROARCH enmTarget, CPUMMICROARCH enmFound)
748	{
749	Assert(enmConsider != enmTarget);
750
751	/*
752	* If we've got an march match, don't bother with enmConsider.
753	*/
754	if (enmFound == enmTarget)
755	return false;
756
757	/*
758	* Found is below: Pick 'consider' if it's closer to the target or above it.
759	*/
760	if (enmFound < enmTarget)
761	return enmConsider > enmFound;
762
763	/*
764	* Found is above: Pick 'consider' if it's also above (paranoia: or equal)
765	* and but closer to the target.
766	*/
767	return enmConsider >= enmTarget && enmConsider < enmFound;
768	}
769
770
771	/**
772	* Do we consider @a enmConsider a better match for @a enmTarget than
773	* @a enmFound?
774	*
775	* Only called for intel family 06h CPUs.
776	*
777	* @returns true/false.
778	* @param enmConsider The new microarch to consider.
779	* @param enmTarget The target microarch.
780	* @param enmFound The best microarch match we've found thus far.
781	*/
782	static bool cpumR3DbIsBetterIntelFam06Match(CPUMMICROARCH enmConsider, CPUMMICROARCH enmTarget, CPUMMICROARCH enmFound)
783	{
784	/* Check intel family 06h claims. */
785	AssertReturn(enmConsider >= kCpumMicroarch_Intel_P6_Core_Atom_First && enmConsider <= kCpumMicroarch_Intel_P6_Core_Atom_End,
786	false);
787	AssertReturn(enmTarget >= kCpumMicroarch_Intel_P6_Core_Atom_First && enmTarget <= kCpumMicroarch_Intel_P6_Core_Atom_End,
788	false);
789
790	/* Put matches out of the way. */
791	if (enmConsider == enmTarget)
792	return true;
793	if (enmFound == enmTarget)
794	return false;
795
796	/* If found isn't a family 06h march, whatever we're considering must be a better choice. */
797	if ( enmFound < kCpumMicroarch_Intel_P6_Core_Atom_First
798	\|\| enmFound > kCpumMicroarch_Intel_P6_Core_Atom_End)
799	return true;
800
801	/*
802	* The family 06h stuff is split into three categories:
803	* - Common P6 heritage
804	* - Core
805	* - Atom
806	*
807	* Determin which of the three arguments are Atom marchs, because that's
808	* all we need to make the right choice.
809	*/
810	bool const fConsiderAtom = enmConsider >= kCpumMicroarch_Intel_Atom_First;
811	bool const fTargetAtom = enmTarget >= kCpumMicroarch_Intel_Atom_First;
812	bool const fFoundAtom = enmFound >= kCpumMicroarch_Intel_Atom_First;
813
814	/*
815	* Want atom:
816	*/
817	if (fTargetAtom)
818	{
819	/* Pick the atom if we've got one of each.*/
820	if (fConsiderAtom != fFoundAtom)
821	return fConsiderAtom;
822	/* If we haven't got any atoms under consideration, pick a P6 or the earlier core.
823	Note! Not entirely sure Dothan is the best choice, but it'll do for now. */
824	if (!fConsiderAtom)
825	{
826	if (enmConsider > enmFound)
827	return enmConsider <= kCpumMicroarch_Intel_P6_M_Dothan;
828	return enmFound > kCpumMicroarch_Intel_P6_M_Dothan;
829	}
830	/* else: same category, default comparison rules. */
831	Assert(fConsiderAtom && fFoundAtom);
832	}
833	/*
834	* Want non-atom:
835	*/
836	/* Pick the non-atom if we've got one of each. */
837	else if (fConsiderAtom != fFoundAtom)
838	return fFoundAtom;
839	/* If we've only got atoms under consideration, pick the older one just to pick something. */
840	else if (fConsiderAtom)
841	return enmConsider < enmFound;
842	else
843	Assert(!fConsiderAtom && !fFoundAtom);
844
845	/*
846	* Same basic category. Do same compare as caller.
847	*/
848	return cpumR3DbIsBetterMarchMatch(enmConsider, enmTarget, enmFound);
849	}
850
851
852	int cpumR3DbGetCpuInfo(const char *pszName, PCPUMINFO pInfo)
853	{
854	CPUMDBENTRY const *pEntry = NULL;
855	int rc;
856
857	if (!strcmp(pszName, "host"))
858	{
859	/*
860	* Create a CPU database entry for the host CPU. This means getting
861	* the CPUID bits from the real CPU and grabbing the closest matching
862	* database entry for MSRs.
863	*/
864	rc = CPUMR3CpuIdDetectUnknownLeafMethod(&pInfo->enmUnknownCpuIdMethod, &pInfo->DefCpuId);
865	if (RT_FAILURE(rc))
866	return rc;
867	rc = CPUMR3CpuIdCollectLeaves(&pInfo->paCpuIdLeavesR3, &pInfo->cCpuIdLeaves);
868	if (RT_FAILURE(rc))
869	return rc;
870	pInfo->fMxCsrMask = CPUMR3DeterminHostMxCsrMask();
871
872	/* Lookup database entry for MSRs. */
873	CPUMCPUVENDOR const enmVendor = CPUMR3CpuIdDetectVendorEx(pInfo->paCpuIdLeavesR3[0].uEax,
874	pInfo->paCpuIdLeavesR3[0].uEbx,
875	pInfo->paCpuIdLeavesR3[0].uEcx,
876	pInfo->paCpuIdLeavesR3[0].uEdx);
877	uint32_t const uStd1Eax = pInfo->paCpuIdLeavesR3[1].uEax;
878	uint8_t const uFamily = ASMGetCpuFamily(uStd1Eax);
879	uint8_t const uModel = ASMGetCpuModel(uStd1Eax, enmVendor == CPUMCPUVENDOR_INTEL);
880	uint8_t const uStepping = ASMGetCpuStepping(uStd1Eax);
881	CPUMMICROARCH const enmMicroarch = CPUMR3CpuIdDetermineMicroarchEx(enmVendor, uFamily, uModel, uStepping);
882
883	for (unsigned i = 0; i < RT_ELEMENTS(g_apCpumDbEntries); i++)
884	{
885	CPUMDBENTRY const *pCur = g_apCpumDbEntries[i];
886	if ((CPUMCPUVENDOR)pCur->enmVendor == enmVendor)
887	{
888	/* Match against Family, Microarch, model and stepping. Except
889	for family, always match the closer with preference given to
890	the later/older ones. */
891	if (pCur->uFamily == uFamily)
892	{
893	if (pCur->enmMicroarch == enmMicroarch)
894	{
895	if (pCur->uModel == uModel)
896	{
897	if (pCur->uStepping == uStepping)
898	{
899	/* Perfect match. */
900	pEntry = pCur;
901	break;
902	}
903
904	if ( !pEntry
905	\|\| pEntry->uModel != uModel
906	\|\| pEntry->enmMicroarch != enmMicroarch
907	\|\| pEntry->uFamily != uFamily)
908	pEntry = pCur;
909	else if ( pCur->uStepping >= uStepping
910	? pCur->uStepping < pEntry->uStepping \|\| pEntry->uStepping < uStepping
911	: pCur->uStepping > pEntry->uStepping)
912	pEntry = pCur;
913	}
914	else if ( !pEntry
915	\|\| pEntry->enmMicroarch != enmMicroarch
916	\|\| pEntry->uFamily != uFamily)
917	pEntry = pCur;
918	else if ( pCur->uModel >= uModel
919	? pCur->uModel < pEntry->uModel \|\| pEntry->uModel < uModel
920	: pCur->uModel > pEntry->uModel)
921	pEntry = pCur;
922	}
923	else if ( !pEntry
924	\|\| pEntry->uFamily != uFamily)
925	pEntry = pCur;
926	/* Special march matching rules applies to intel family 06h. */
927	else if ( enmVendor == CPUMCPUVENDOR_INTEL
928	&& uFamily == 6
929	? cpumR3DbIsBetterIntelFam06Match(pCur->enmMicroarch, enmMicroarch, pEntry->enmMicroarch)
930	: cpumR3DbIsBetterMarchMatch(pCur->enmMicroarch, enmMicroarch, pEntry->enmMicroarch))
931	pEntry = pCur;
932	}
933	/* We don't do closeness matching on family, we use the first
934	entry for the CPU vendor instead. (P4 workaround.) */
935	else if (!pEntry)
936	pEntry = pCur;
937	}
938	}
939
940	if (pEntry)
941	LogRel(("CPUM: Matched host CPU %s %#x/%#x/%#x %s with CPU DB entry '%s' (%s %#x/%#x/%#x %s)\n",
942	CPUMR3CpuVendorName(enmVendor), uFamily, uModel, uStepping, CPUMR3MicroarchName(enmMicroarch),
943	pEntry->pszName, CPUMR3CpuVendorName((CPUMCPUVENDOR)pEntry->enmVendor), pEntry->uFamily, pEntry->uModel,
944	pEntry->uStepping, CPUMR3MicroarchName(pEntry->enmMicroarch) ));
945	else
946	{
947	pEntry = g_apCpumDbEntries[0];
948	LogRel(("CPUM: No matching processor database entry %s %#x/%#x/%#x %s, falling back on '%s'\n",
949	CPUMR3CpuVendorName(enmVendor), uFamily, uModel, uStepping, CPUMR3MicroarchName(enmMicroarch),
950	pEntry->pszName));
951	}
952	}
953	else
954	{
955	/*
956	* We're supposed to be emulating a specific CPU that is included in
957	* our CPU database. The CPUID tables needs to be copied onto the
958	* heap so the caller can modify them and so they can be freed like
959	* in the host case above.
960	*/
961	for (unsigned i = 0; i < RT_ELEMENTS(g_apCpumDbEntries); i++)
962	if (!strcmp(pszName, g_apCpumDbEntries[i]->pszName))
963	{
964	pEntry = g_apCpumDbEntries[i];
965	break;
966	}
967	if (!pEntry)
968	{
969	LogRel(("CPUM: Cannot locate any CPU by the name '%s'\n", pszName));
970	return VERR_CPUM_DB_CPU_NOT_FOUND;
971	}
972
973	pInfo->cCpuIdLeaves = pEntry->cCpuIdLeaves;
974	if (pEntry->cCpuIdLeaves)
975	{
976	/* Must allocate a multiple of 16 here, matching cpumR3CpuIdEnsureSpace. */
977	size_t cbExtra = sizeof(pEntry->paCpuIdLeaves[0]) * (RT_ALIGN(pEntry->cCpuIdLeaves, 16) - pEntry->cCpuIdLeaves);
978	pInfo->paCpuIdLeavesR3 = (PCPUMCPUIDLEAF)RTMemDupEx(pEntry->paCpuIdLeaves,
979	sizeof(pEntry->paCpuIdLeaves[0]) * pEntry->cCpuIdLeaves,
980	cbExtra);
981	if (!pInfo->paCpuIdLeavesR3)
982	return VERR_NO_MEMORY;
983	}
984	else
985	pInfo->paCpuIdLeavesR3 = NULL;
986
987	pInfo->enmUnknownCpuIdMethod = pEntry->enmUnknownCpuId;
988	pInfo->DefCpuId = pEntry->DefUnknownCpuId;
989	pInfo->fMxCsrMask = pEntry->fMxCsrMask;
990
991	LogRel(("CPUM: Using CPU DB entry '%s' (%s %#x/%#x/%#x %s)\n",
992	pEntry->pszName, CPUMR3CpuVendorName((CPUMCPUVENDOR)pEntry->enmVendor),
993	pEntry->uFamily, pEntry->uModel, pEntry->uStepping, CPUMR3MicroarchName(pEntry->enmMicroarch) ));
994	}
995
996	pInfo->fMsrMask = pEntry->fMsrMask;
997	pInfo->iFirstExtCpuIdLeaf = 0; /* Set by caller. */
998	pInfo->uScalableBusFreq = pEntry->uScalableBusFreq;
999	pInfo->paCpuIdLeavesR0 = NIL_RTR0PTR;
1000	pInfo->paMsrRangesR0 = NIL_RTR0PTR;
1001	pInfo->paCpuIdLeavesRC = NIL_RTRCPTR;
1002	pInfo->paMsrRangesRC = NIL_RTRCPTR;
1003
1004	/*
1005	* Copy the MSR range.
1006	*/
1007	uint32_t cMsrs = 0;
1008	PCPUMMSRRANGE paMsrs = NULL;
1009
1010	PCCPUMMSRRANGE pCurMsr = pEntry->paMsrRanges;
1011	uint32_t cLeft = pEntry->cMsrRanges;
1012	while (cLeft-- > 0)
1013	{
1014	rc = cpumR3MsrRangesInsert(NULL /* pVM */, &paMsrs, &cMsrs, pCurMsr);
1015	if (RT_FAILURE(rc))
1016	{
1017	Assert(!paMsrs); /* The above function frees this. */
1018	RTMemFree(pInfo->paCpuIdLeavesR3);
1019	pInfo->paCpuIdLeavesR3 = NULL;
1020	return rc;
1021	}
1022	pCurMsr++;
1023	}
1024
1025	pInfo->paMsrRangesR3 = paMsrs;
1026	pInfo->cMsrRanges = cMsrs;
1027	return VINF_SUCCESS;
1028	}
1029
1030
1031	/**
1032	* Insert an MSR range into the VM.
1033	*
1034	* If the new MSR range overlaps existing ranges, the existing ones will be
1035	* adjusted/removed to fit in the new one.
1036	*
1037	* @returns VBox status code.
1038	* @param pVM The cross context VM structure.
1039	* @param pNewRange Pointer to the MSR range being inserted.
1040	*/
1041	VMMR3DECL(int) CPUMR3MsrRangesInsert(PVM pVM, PCCPUMMSRRANGE pNewRange)
1042	{
1043	AssertReturn(pVM, VERR_INVALID_PARAMETER);
1044	AssertReturn(pNewRange, VERR_INVALID_PARAMETER);
1045
1046	return cpumR3MsrRangesInsert(pVM, NULL /* ppaMsrRanges /, NULL / pcMsrRanges */, pNewRange);
1047	}
1048
1049
1050	/**
1051	* Register statistics for the MSRs.
1052	*
1053	* This must not be called before the MSRs have been finalized and moved to the
1054	* hyper heap.
1055	*
1056	* @returns VBox status code.
1057	* @param pVM The cross context VM structure.
1058	*/
1059	int cpumR3MsrRegStats(PVM pVM)
1060	{
1061	/*
1062	* Global statistics.
1063	*/
1064	PCPUM pCpum = &pVM->cpum.s;
1065	STAM_REL_REG(pVM, &pCpum->cMsrReads, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/Reads",
1066	STAMUNIT_OCCURENCES, "All RDMSRs making it to CPUM.");
1067	STAM_REL_REG(pVM, &pCpum->cMsrReadsRaiseGp, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/ReadsRaisingGP",
1068	STAMUNIT_OCCURENCES, "RDMSR raising #GPs, except unknown MSRs.");
1069	STAM_REL_REG(pVM, &pCpum->cMsrReadsUnknown, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/ReadsUnknown",
1070	STAMUNIT_OCCURENCES, "RDMSR on unknown MSRs (raises #GP).");
1071	STAM_REL_REG(pVM, &pCpum->cMsrWrites, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/Writes",
1072	STAMUNIT_OCCURENCES, "All WRMSRs making it to CPUM.");
1073	STAM_REL_REG(pVM, &pCpum->cMsrWritesRaiseGp, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/WritesRaisingGP",
1074	STAMUNIT_OCCURENCES, "WRMSR raising #GPs, except unknown MSRs.");
1075	STAM_REL_REG(pVM, &pCpum->cMsrWritesToIgnoredBits, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/WritesToIgnoredBits",
1076	STAMUNIT_OCCURENCES, "Writing of ignored bits.");
1077	STAM_REL_REG(pVM, &pCpum->cMsrWritesUnknown, STAMTYPE_COUNTER, "/CPUM/MSR-Totals/WritesUnknown",
1078	STAMUNIT_OCCURENCES, "WRMSR on unknown MSRs (raises #GP).");
1079
1080
1081	# ifdef VBOX_WITH_STATISTICS
1082	/*
1083	* Per range.
1084	*/
1085	PCPUMMSRRANGE paRanges = pVM->cpum.s.GuestInfo.paMsrRangesR3;
1086	uint32_t cRanges = pVM->cpum.s.GuestInfo.cMsrRanges;
1087	for (uint32_t i = 0; i < cRanges; i++)
1088	{
1089	char szName[160];
1090	ssize_t cchName;
1091
1092	if (paRanges[i].uFirst == paRanges[i].uLast)
1093	cchName = RTStrPrintf(szName, sizeof(szName), "/CPUM/MSRs/%#010x-%s",
1094	paRanges[i].uFirst, paRanges[i].szName);
1095	else
1096	cchName = RTStrPrintf(szName, sizeof(szName), "/CPUM/MSRs/%#010x-%#010x-%s",
1097	paRanges[i].uFirst, paRanges[i].uLast, paRanges[i].szName);
1098
1099	RTStrCopy(&szName[cchName], sizeof(szName) - cchName, "-reads");
1100	STAMR3Register(pVM, &paRanges[i].cReads, STAMTYPE_COUNTER, STAMVISIBILITY_ALWAYS, szName, STAMUNIT_OCCURENCES, "RDMSR");
1101
1102	RTStrCopy(&szName[cchName], sizeof(szName) - cchName, "-writes");
1103	STAMR3Register(pVM, &paRanges[i].cWrites, STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "WRMSR");
1104
1105	RTStrCopy(&szName[cchName], sizeof(szName) - cchName, "-GPs");
1106	STAMR3Register(pVM, &paRanges[i].cGps, STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "#GPs");
1107
1108	RTStrCopy(&szName[cchName], sizeof(szName) - cchName, "-ign-bits-writes");
1109	STAMR3Register(pVM, &paRanges[i].cIgnoredBits, STAMTYPE_COUNTER, STAMVISIBILITY_USED, szName, STAMUNIT_OCCURENCES, "WRMSR w/ ignored bits");
1110	}
1111	# endif /* VBOX_WITH_STATISTICS */
1112
1113	return VINF_SUCCESS;
1114	}
1115
1116	#endif /* !CPUM_DB_STANDALONE */
1117

Note: See TracBrowser for help on using the repository browser.

source: vbox/trunk/src/VBox/VMM/VMMR3/CPUMR3Db.cpp@ 76768

Download in other formats: