DevFwCommon.cpp@ 101359

Last change on this file since 101359 was 100542, checked in by vboxsync, 17 months ago
DevFwCommon: Add an experimental way for using the DmiSystemUuid (with fallback to HW UUID) in strings. Could make sense with constructing unique serial numbers.
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File size: 51.4 KB

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1	/* $Id: DevFwCommon.cpp 100542 2023-07-12 11:23:07Z vboxsync $ */
2	/** @file
3	* FwCommon - Shared firmware code (used by DevPcBios & DevEFI).
4	*/
5
6	/*
7	* Copyright (C) 2009-2023 Oracle and/or its affiliates.
8	*
9	* This file is part of VirtualBox base platform packages, as
10	* available from https://www.virtualbox.org.
11	*
12	* This program is free software; you can redistribute it and/or
13	* modify it under the terms of the GNU General Public License
14	* as published by the Free Software Foundation, in version 3 of the
15	* License.
16	*
17	* This program is distributed in the hope that it will be useful, but
18	* WITHOUT ANY WARRANTY; without even the implied warranty of
19	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
20	* General Public License for more details.
21	*
22	* You should have received a copy of the GNU General Public License
23	* along with this program; if not, see <https://www.gnu.org/licenses>.
24	*
25	* SPDX-License-Identifier: GPL-3.0-only
26	*/
27
28
29	/*********************************************************************************************************************************
30	* Header Files *
31	*********************************************************************************************************************************/
32	#define LOG_GROUP LOG_GROUP_DEV
33	#include <VBox/vmm/pdmdev.h>
34
35	#include <VBox/log.h>
36	#include <VBox/err.h>
37	#include <VBox/param.h>
38
39	#include <iprt/asm.h>
40	#include <iprt/assert.h>
41	#include <iprt/buildconfig.h>
42	#include <iprt/file.h>
43	#include <iprt/mem.h>
44	#include <iprt/string.h>
45	#include <iprt/uuid.h>
46	#include <iprt/system.h>
47	#include <iprt/cdefs.h>
48	#include <iprt/alloca.h>
49
50	#include "VBoxDD.h"
51	#include "VBoxDD2.h"
52	#include "DevFwCommon.h"
53
54
55	/*********************************************************************************************************************************
56	* Defined Constants And Macros *
57	*********************************************************************************************************************************/
58
59	/*
60	* Default DMI data (legacy).
61	* Don't change this information otherwise Windows guests might demand re-activation!
62	*/
63
64	/* type 0 -- DMI BIOS information */
65	static const int32_t g_iDefDmiBIOSReleaseMajor = 0;
66	static const int32_t g_iDefDmiBIOSReleaseMinor = 0;
67	static const int32_t g_iDefDmiBIOSFirmwareMajor = 0;
68	static const int32_t g_iDefDmiBIOSFirmwareMinor = 0;
69	static const char *g_pszDefDmiBIOSVendor = "innotek GmbH";
70	static const char *g_pszDefDmiBIOSVersion = "VirtualBox";
71	static const char *g_pszDefDmiBIOSReleaseDate = "12/01/2006";
72	/* type 1 -- DMI system information */
73	static const char *g_pszDefDmiSystemVendor = "innotek GmbH";
74	static const char *g_pszDefDmiSystemProduct = "VirtualBox";
75	static const char *g_pszDefDmiSystemVersion = "1.2";
76	static const char *g_pszDefDmiSystemSerial = "0";
77	static const char *g_pszDefDmiSystemSKU = "";
78	static const char *g_pszDefDmiSystemFamily = "Virtual Machine";
79	/* type 2 -- DMI board information */
80	static const char *g_pszDefDmiBoardVendor = "Oracle Corporation";
81	static const char *g_pszDefDmiBoardProduct = "VirtualBox";
82	static const char *g_pszDefDmiBoardVersion = "1.2";
83	static const char *g_pszDefDmiBoardSerial = "0";
84	static const char *g_pszDefDmiBoardAssetTag = "";
85	static const char *g_pszDefDmiBoardLocInChass = "";
86	static const int32_t g_iDefDmiBoardBoardType = 0x0A; /* Motherboard */
87	/* type 3 -- DMI chassis information */
88	static const char *g_pszDefDmiChassisVendor = "Oracle Corporation";
89	static const int32_t g_iDefDmiChassisType = 0x01; /* ''other'', no chassis lock present */
90	static const char *g_pszDefDmiChassisVersion = "";
91	static const char *g_pszDefDmiChassisSerial = "";
92	static const char *g_pszDefDmiChassisAssetTag = "";
93	/* type 4 -- DMI processor information */
94	static const char *g_pszDefDmiProcManufacturer= "GenuineIntel";
95	static const char *g_pszDefDmiProcVersion = "Pentium(R) III";
96
97	/** The host DMI system product value, for DmiUseHostInfo=1. */
98	static char g_szHostDmiSystemProduct[64];
99	/** The host DMI system version value, for DmiUseHostInfo=1. */
100	static char g_szHostDmiSystemVersion[64];
101
102
103	/*********************************************************************************************************************************
104	* Structures and Typedefs *
105	*********************************************************************************************************************************/
106	#pragma pack(1)
107
108	typedef struct SMBIOSHDR
109	{
110	uint8_t au8Signature[4];
111	uint8_t u8Checksum;
112	uint8_t u8Eps;
113	uint8_t u8VersionMajor;
114	uint8_t u8VersionMinor;
115	uint16_t u16MaxStructureSize;
116	uint8_t u8EntryPointRevision;
117	uint8_t u8Pad[5];
118	} *SMBIOSHDRPTR;
119	AssertCompileSize(SMBIOSHDR, 16);
120
121	typedef struct DMIMAINHDR
122	{
123	uint8_t au8Signature[5];
124	uint8_t u8Checksum;
125	uint16_t u16TablesLength;
126	uint32_t u32TableBase;
127	uint16_t u16TableEntries;
128	uint8_t u8TableVersion;
129	} *DMIMAINHDRPTR;
130	AssertCompileSize(DMIMAINHDR, 15);
131
132	AssertCompile(sizeof(SMBIOSHDR) + sizeof(DMIMAINHDR) <= VBOX_DMI_HDR_SIZE);
133
134	/** DMI header */
135	typedef struct DMIHDR
136	{
137	uint8_t u8Type;
138	uint8_t u8Length;
139	uint16_t u16Handle;
140	} *PDMIHDR;
141	AssertCompileSize(DMIHDR, 4);
142
143	/** DMI BIOS information (Type 0) */
144	typedef struct DMIBIOSINF
145	{
146	DMIHDR header;
147	uint8_t u8Vendor;
148	uint8_t u8Version;
149	uint16_t u16Start;
150	uint8_t u8Release;
151	uint8_t u8ROMSize;
152	uint64_t u64Characteristics;
153	uint8_t u8CharacteristicsByte1;
154	uint8_t u8CharacteristicsByte2;
155	uint8_t u8ReleaseMajor;
156	uint8_t u8ReleaseMinor;
157	uint8_t u8FirmwareMajor;
158	uint8_t u8FirmwareMinor;
159	} *PDMIBIOSINF;
160	AssertCompileSize(DMIBIOSINF, 0x18);
161
162	/** DMI system information (Type 1) */
163	typedef struct DMISYSTEMINF
164	{
165	DMIHDR header;
166	uint8_t u8Manufacturer;
167	uint8_t u8ProductName;
168	uint8_t u8Version;
169	uint8_t u8SerialNumber;
170	uint8_t au8Uuid[16];
171	uint8_t u8WakeupType;
172	uint8_t u8SKUNumber;
173	uint8_t u8Family;
174	} *PDMISYSTEMINF;
175	AssertCompileSize(DMISYSTEMINF, 0x1b);
176
177	/** DMI board (or module) information (Type 2) */
178	typedef struct DMIBOARDINF
179	{
180	DMIHDR header;
181	uint8_t u8Manufacturer;
182	uint8_t u8Product;
183	uint8_t u8Version;
184	uint8_t u8SerialNumber;
185	uint8_t u8AssetTag;
186	uint8_t u8FeatureFlags;
187	uint8_t u8LocationInChass;
188	uint16_t u16ChassisHandle;
189	uint8_t u8BoardType;
190	uint8_t u8cObjectHandles;
191	} *PDMIBOARDINF;
192	AssertCompileSize(DMIBOARDINF, 0x0f);
193
194	/** DMI system enclosure or chassis type (Type 3) */
195	typedef struct DMICHASSIS
196	{
197	DMIHDR header;
198	uint8_t u8Manufacturer;
199	uint8_t u8Type;
200	uint8_t u8Version;
201	uint8_t u8SerialNumber;
202	uint8_t u8AssetTag;
203	uint8_t u8BootupState;
204	uint8_t u8PowerSupplyState;
205	uint8_t u8ThermalState;
206	uint8_t u8SecurityStatus;
207	/* v2.3+, currently not supported */
208	uint32_t u32OEMdefined;
209	uint8_t u8Height;
210	uint8_t u8NumPowerChords;
211	uint8_t u8ContElems;
212	uint8_t u8ContElemRecLen;
213	} *PDMICHASSIS;
214	AssertCompileSize(DMICHASSIS, 0x15);
215
216	/** DMI processor information (Type 4) */
217	typedef struct DMIPROCESSORINF
218	{
219	DMIHDR header;
220	uint8_t u8SocketDesignation;
221	uint8_t u8ProcessorType;
222	uint8_t u8ProcessorFamily;
223	uint8_t u8ProcessorManufacturer;
224	uint64_t u64ProcessorID;
225	uint8_t u8ProcessorVersion;
226	uint8_t u8Voltage;
227	uint16_t u16ExternalClock;
228	uint16_t u16MaxSpeed;
229	uint16_t u16CurrentSpeed;
230	uint8_t u8Status;
231	uint8_t u8ProcessorUpgrade;
232	/* v2.1+ */
233	uint16_t u16L1CacheHandle;
234	uint16_t u16L2CacheHandle;
235	uint16_t u16L3CacheHandle;
236	/* v2.3+ */
237	uint8_t u8SerialNumber;
238	uint8_t u8AssetTag;
239	uint8_t u8PartNumber;
240	/* v2.5+ */
241	uint8_t u8CoreCount;
242	uint8_t u8CoreEnabled;
243	uint8_t u8ThreadCount;
244	uint16_t u16ProcessorCharacteristics;
245	/* v2.6+ */
246	uint16_t u16ProcessorFamily2;
247	} *PDMIPROCESSORINF;
248	AssertCompileSize(DMIPROCESSORINF, 0x2a);
249
250	/** DMI OEM strings (Type 11) */
251	typedef struct DMIOEMSTRINGS
252	{
253	DMIHDR header;
254	uint8_t u8Count;
255	uint8_t u8VBoxVersion;
256	uint8_t u8VBoxRevision;
257	} *PDMIOEMSTRINGS;
258	AssertCompileSize(DMIOEMSTRINGS, 0x7);
259
260	/** DMI OEM-specific table (Type 128) */
261	typedef struct DMIOEMSPECIFIC
262	{
263	DMIHDR header;
264	uint32_t u32CpuFreqKHz;
265	} *PDMIOEMSPECIFIC;
266	AssertCompileSize(DMIOEMSPECIFIC, 0x8);
267
268	/** Physical memory array (Type 16) */
269	typedef struct DMIRAMARRAY
270	{
271	DMIHDR header;
272	uint8_t u8Location;
273	uint8_t u8Use;
274	uint8_t u8MemErrorCorrection;
275	uint32_t u32MaxCapacity;
276	uint16_t u16MemErrorHandle;
277	uint16_t u16NumberOfMemDevices;
278	} *PDMIRAMARRAY;
279	AssertCompileSize(DMIRAMARRAY, 15);
280
281	/** DMI Memory Device (Type 17) */
282	typedef struct DMIMEMORYDEV
283	{
284	DMIHDR header;
285	uint16_t u16PhysMemArrayHandle;
286	uint16_t u16MemErrHandle;
287	uint16_t u16TotalWidth;
288	uint16_t u16DataWidth;
289	uint16_t u16Size;
290	uint8_t u8FormFactor;
291	uint8_t u8DeviceSet;
292	uint8_t u8DeviceLocator;
293	uint8_t u8BankLocator;
294	uint8_t u8MemoryType;
295	uint16_t u16TypeDetail;
296	uint16_t u16Speed;
297	uint8_t u8Manufacturer;
298	uint8_t u8SerialNumber;
299	uint8_t u8AssetTag;
300	uint8_t u8PartNumber;
301	/* v2.6+ */
302	uint8_t u8Attributes;
303	/* v2.7+ */
304	uint32_t u32ExtendedSize;
305	uint16_t u16CfgSpeed; /* Configured speed in MT/sec. */
306	} *PDMIMEMORYDEV;
307	AssertCompileSize(DMIMEMORYDEV, 34);
308
309	/** MPS floating pointer structure */
310	typedef struct MPSFLOATPTR
311	{
312	uint8_t au8Signature[4];
313	uint32_t u32MPSAddr;
314	uint8_t u8Length;
315	uint8_t u8SpecRev;
316	uint8_t u8Checksum;
317	uint8_t au8Feature[5];
318	} *PMPSFLOATPTR;
319	AssertCompileSize(MPSFLOATPTR, 16);
320
321	/** MPS config table header */
322	typedef struct MPSCFGTBLHEADER
323	{
324	uint8_t au8Signature[4];
325	uint16_t u16Length;
326	uint8_t u8SpecRev;
327	uint8_t u8Checksum;
328	uint8_t au8OemId[8];
329	uint8_t au8ProductId[12];
330	uint32_t u32OemTablePtr;
331	uint16_t u16OemTableSize;
332	uint16_t u16EntryCount;
333	uint32_t u32AddrLocalApic;
334	uint16_t u16ExtTableLength;
335	uint8_t u8ExtTableChecksum;
336	uint8_t u8Reserved;
337	} *PMPSCFGTBLHEADER;
338	AssertCompileSize(MPSCFGTBLHEADER, 0x2c);
339
340	/** MPS processor entry */
341	typedef struct MPSPROCENTRY
342	{
343	uint8_t u8EntryType;
344	uint8_t u8LocalApicId;
345	uint8_t u8LocalApicVersion;
346	uint8_t u8CPUFlags;
347	uint32_t u32CPUSignature;
348	uint32_t u32CPUFeatureFlags;
349	uint32_t u32Reserved[2];
350	} *PMPSPROCENTRY;
351	AssertCompileSize(MPSPROCENTRY, 20);
352
353	/** MPS bus entry */
354	typedef struct MPSBUSENTRY
355	{
356	uint8_t u8EntryType;
357	uint8_t u8BusId;
358	uint8_t au8BusTypeStr[6];
359	} *PMPSBUSENTRY;
360	AssertCompileSize(MPSBUSENTRY, 8);
361
362	/** MPS I/O-APIC entry */
363	typedef struct MPSIOAPICENTRY
364	{
365	uint8_t u8EntryType;
366	uint8_t u8Id;
367	uint8_t u8Version;
368	uint8_t u8Flags;
369	uint32_t u32Addr;
370	} *PMPSIOAPICENTRY;
371	AssertCompileSize(MPSIOAPICENTRY, 8);
372
373	/** MPS I/O-Interrupt entry */
374	typedef struct MPSIOINTERRUPTENTRY
375	{
376	uint8_t u8EntryType;
377	uint8_t u8Type;
378	uint16_t u16Flags;
379	uint8_t u8SrcBusId;
380	uint8_t u8SrcBusIrq;
381	uint8_t u8DstIOAPICId;
382	uint8_t u8DstIOAPICInt;
383	} *PMPSIOIRQENTRY;
384	AssertCompileSize(MPSIOINTERRUPTENTRY, 8);
385
386	#pragma pack()
387
388
389	/**
390	* Calculate a simple checksum for the MPS table.
391	*
392	* @param au8Data data
393	* @param u32Length size of data
394	*/
395	static uint8_t fwCommonChecksum(const uint8_t * const au8Data, uint32_t u32Length)
396	{
397	uint8_t u8Sum = 0;
398	for (size_t i = 0; i < u32Length; ++i)
399	u8Sum += au8Data[i];
400	return -u8Sum;
401	}
402
403	#if 0 /* unused */
404	static bool fwCommonChecksumOk(const uint8_t * const au8Data, uint32_t u32Length)
405	{
406	uint8_t u8Sum = 0;
407	for (size_t i = 0; i < u32Length; i++)
408	u8Sum += au8Data[i];
409	return (u8Sum == 0);
410	}
411	#endif
412
413	/**
414	* Try fetch the DMI strings from the system.
415	*/
416	static void fwCommonUseHostDMIStrings(void)
417	{
418	int rc;
419
420	rc = RTSystemQueryDmiString(RTSYSDMISTR_PRODUCT_NAME,
421	g_szHostDmiSystemProduct, sizeof(g_szHostDmiSystemProduct));
422	if (RT_SUCCESS(rc))
423	{
424	g_pszDefDmiSystemProduct = g_szHostDmiSystemProduct;
425	LogRel(("DMI: Using DmiSystemProduct from host: %s\n", g_szHostDmiSystemProduct));
426	}
427
428	rc = RTSystemQueryDmiString(RTSYSDMISTR_PRODUCT_VERSION,
429	g_szHostDmiSystemVersion, sizeof(g_szHostDmiSystemVersion));
430	if (RT_SUCCESS(rc))
431	{
432	g_pszDefDmiSystemVersion = g_szHostDmiSystemVersion;
433	LogRel(("DMI: Using DmiSystemVersion from host: %s\n", g_szHostDmiSystemVersion));
434	}
435	}
436
437	/**
438	* Replace the DmiSystemUuid placeholder with the actual value.
439	*
440	* @param pszBuf Buffer
441	* @param cbBuf Size of buffer
442	* @param pcszPlaceholder Pointer to placeholder, must be in pszBuf
443	* @param cbPlaceholder Length of placeholder
444	* @param pcszDmiSystemUuid DmiSystemUuid value
445	*/
446	static void fwUseDmiSystemUuidInString(char *pszBuf, size_t cbBuf,
447	const char *pcszPlaceholder, size_t cbPlaceholder,
448	const char *pcszDmiSystemUuid)
449	{
450	size_t const cbPrefix = pcszPlaceholder - pszBuf;
451	size_t const cbUuid = strlen(pcszDmiSystemUuid);
452	size_t const cbSuffix = strlen(pcszPlaceholder + cbPlaceholder);
453	if (cbPrefix + cbUuid + cbSuffix < cbBuf)
454	{
455	/* Everything fits, no truncation. */
456	memmove(pszBuf + cbPrefix + cbUuid, pcszPlaceholder + cbPlaceholder, cbSuffix + 1); \
457	memcpy(pszBuf + cbPrefix, pcszDmiSystemUuid, cbUuid); \
458	}
459	else if (cbPrefix + cbUuid < cbBuf)
460	{
461	/* Prefix + DmiSystemUuid fits, truncate suffix. */
462	memmove(pszBuf + cbPrefix + cbUuid, pcszPlaceholder + cbPlaceholder, cbBuf - cbPrefix - cbUuid - 1); \
463	memcpy(pszBuf + cbPrefix, pcszDmiSystemUuid, cbUuid); \
464	pszBuf[cbBuf] = '\0';
465	}
466	else
467	{
468	/* Prefix fits, truncate DmiSystemUuid. */
469	memcpy(pszBuf + cbPrefix, pcszDmiSystemUuid, cbBuf - cbPrefix - 1); \
470	pszBuf[cbBuf] = '\0';
471	}
472	}
473
474	/**
475	* Construct the DMI table.
476	*
477	* @returns VBox status code.
478	* @param pDevIns The device instance.
479	* @param pTable Where to create the DMI table.
480	* @param cbMax The maximum size of the DMI table.
481	* @param pUuid Pointer to the UUID to use if the DmiUuid
482	* configuration string isn't present.
483	* @param pCfg The handle to our config node.
484	* @param cCpus Number of VCPUs.
485	* @param pcbDmiTables Size of DMI data in bytes.
486	* @param pcDmiTables Number of DMI tables.
487	* @param fUefi Flag whether the UEFI specification is supported.
488	*/
489	int FwCommonPlantDMITable(PPDMDEVINS pDevIns, uint8_t *pTable, unsigned cbMax, PCRTUUID pUuid, PCFGMNODE pCfg, uint16_t cCpus,
490	uint16_t pcbDmiTables, uint16_t pcDmiTables, bool fUefi)
491	{
492	PCPDMDEVHLPR3 pHlp = pDevIns->pHlpR3;
493
494	/*
495	* CFGM Hint!
496	*
497	* The macros below makes it a bit hard to figure out the config options
498	* available here. To get a quick hint, take a look a the CFGM
499	* validation in the calling code (DevEFI.cpp and DevPcBios.cpp).
500	*
501	* 32-bit signed integer CFGM options are read by DMI_READ_CFG_S32, the 2nd
502	* parameter is the CFGM value name.
503	*
504	* Strings are read by DMI_READ_CFG_STR and DMI_READ_CFG_STR_DEF, the 2nd parameter is
505	* the CFGM value name.
506	*/
507	#define DMI_CHECK_SIZE(cbWant) \
508	{ \
509	size_t cbNeed = (size_t)(pszStr + cbWant - (char )pTable) + 5; / +1 for strtab terminator +4 for end-of-table entry */ \
510	if (cbNeed > cbMax) \
511	{ \
512	if (fHideErrors) \
513	{ \
514	LogRel(("One of the DMI strings is too long -- using default DMI data!\n")); \
515	continue; \
516	} \
517	return PDMDevHlpVMSetError(pDevIns, VERR_TOO_MUCH_DATA, RT_SRC_POS, \
518	N_("One of the DMI strings is too long. Check all bios/Dmi* configuration entries. At least %zu bytes are needed but there is no space for more than %d bytes"), cbNeed, cbMax); \
519	} \
520	}
521
522	#define DMI_READ_CFG_STR_DEF(variable, name, default_value) \
523	{ \
524	if (fForceDefault) \
525	pszTmp = default_value; \
526	else \
527	{ \
528	rc = pHlp->pfnCFGMQueryStringDef(pCfg, name, szBuf, sizeof(szBuf), default_value); \
529	if (RT_FAILURE(rc)) \
530	{ \
531	if (fHideErrors) \
532	{ \
533	LogRel(("Configuration error: Querying \"" name "\" as a string failed -- using default DMI data!\n")); \
534	continue; \
535	} \
536	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS, \
537	N_("Configuration error: Querying \"" name "\" as a string failed")); \
538	} \
539	if (!strcmp(szBuf, "<EMPTY>")) \
540	pszTmp = ""; \
541	else if ((pszTmp = RTStrStr(szBuf, "<DmiSystemUuid>"))) \
542	{ \
543	char *pszUuid = pszDmiSystemUuid; \
544	if (!pszUuid) \
545	{ \
546	pszUuid = (char *)alloca(RTUUID_STR_LENGTH); \
547	RTUuidToStr(pUuid, pszUuid, RTUUID_STR_LENGTH); \
548	} \
549	fwUseDmiSystemUuidInString(szBuf, sizeof(szBuf), pszTmp, 15, pszUuid); \
550	pszTmp = szBuf; \
551	} \
552	else \
553	pszTmp = szBuf; \
554	} \
555	if (!pszTmp[0]) \
556	variable = 0; /* empty string */ \
557	else \
558	{ \
559	variable = iStrNr++; \
560	size_t const cbStr = strlen(pszTmp) + 1; \
561	DMI_CHECK_SIZE(cbStr); \
562	pszStr = (char *)mempcpy(pszStr, pszTmp, cbStr); \
563	} \
564	}
565
566	#define DMI_READ_CFG_STR(variable, name) \
567	DMI_READ_CFG_STR_DEF(variable, # name, g_pszDef ## name)
568
569	#define DMI_READ_CFG_S32(variable, name) \
570	{ \
571	if (fForceDefault) \
572	variable = g_iDef ## name; \
573	else \
574	{ \
575	rc = pHlp->pfnCFGMQueryS32Def(pCfg, # name, & variable, g_iDef ## name); \
576	if (RT_FAILURE(rc)) \
577	{ \
578	if (fHideErrors) \
579	{ \
580	LogRel(("Configuration error: Querying \"" # name "\" as an int failed -- using default DMI data!\n")); \
581	continue; \
582	} \
583	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS, \
584	N_("Configuration error: Querying \"" # name "\" as an int failed")); \
585	} \
586	} \
587	}
588
589	#define DMI_START_STRUCT(a_pTbl) do { \
590	pszStr = (char *)((a_pTbl) + 1); \
591	iStrNr = 1; \
592	} while (0)
593
594	#if 0 /* GCC 11.2.1 barfs on this: error: writing 1 byte into a region of size 0 [-Werror=stringop-overflow=] */
595	# define DMI_TERM_STRUCT do { \
596	pszStr++ = '\0'; / terminate set of text strings */ \
597	if (iStrNr == 1) \
598	pszStr++ = '\0'; / terminate a structure without strings */ \
599	} while (0)
600	#else
601	# define DMI_TERM_STRUCT do { \
602	size_t const cbToZero = iStrNr == 1 ? 2 : 1; \
603	pszStr = (char *)memset(pszStr, 0, cbToZero) + cbToZero; \
604	} while (0)
605	#endif
606
607	bool fForceDefault = false;
608	#ifdef VBOX_BIOS_DMI_FALLBACK
609	/*
610	* There will be two passes. If an error occurs during the first pass, a
611	* message will be written to the release log and we fall back to default
612	* DMI data and start a second pass.
613	*/
614	bool fHideErrors = true;
615	#else
616	/*
617	* There will be one pass, every error is fatal and will prevent the VM
618	* from starting.
619	*/
620	bool fHideErrors = false;
621	#endif
622
623	uint8_t fDmiUseHostInfo;
624	int rc = pHlp->pfnCFGMQueryU8Def(pCfg, "DmiUseHostInfo", &fDmiUseHostInfo, 0);
625	if (RT_FAILURE (rc))
626	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to read \"DmiUseHostInfo\""));
627
628	/* Sync up with host default DMI values */
629	if (fDmiUseHostInfo)
630	fwCommonUseHostDMIStrings();
631
632	uint8_t fDmiExposeMemoryTable;
633	rc = pHlp->pfnCFGMQueryU8Def(pCfg, "DmiExposeMemoryTable", &fDmiExposeMemoryTable, 0);
634	if (RT_FAILURE (rc))
635	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to read \"DmiExposeMemoryTable\""));
636	uint8_t fDmiExposeProcessorInf;
637	rc = pHlp->pfnCFGMQueryU8Def(pCfg, "DmiExposeProcInf", &fDmiExposeProcessorInf, 0);
638	if (RT_FAILURE (rc))
639	return PDMDEV_SET_ERROR(pDevIns, rc, N_("Configuration error: Failed to read \"DmiExposeProcInf\""));
640
641	for (;; fForceDefault = true, fHideErrors = false)
642	{
643	int iStrNr;
644	char szBuf[256];
645	char pszStr = (char )pTable;
646	char szDmiSystemUuid[64];
647	char *pszDmiSystemUuid;
648	const char *pszTmp;
649
650	if (fForceDefault)
651	pszDmiSystemUuid = NULL;
652	else
653	{
654	rc = pHlp->pfnCFGMQueryString(pCfg, "DmiSystemUuid", szDmiSystemUuid, sizeof(szDmiSystemUuid));
655	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
656	pszDmiSystemUuid = NULL;
657	else if (RT_FAILURE(rc))
658	{
659	if (fHideErrors)
660	{
661	LogRel(("Configuration error: Querying \"DmiSystemUuid\" as a string failed, using default DMI data\n"));
662	continue;
663	}
664	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
665	N_("Configuration error: Querying \"DmiSystemUuid\" as a string failed"));
666	}
667	else
668	pszDmiSystemUuid = szDmiSystemUuid;
669	}
670
671	/*********************************
672	* DMI BIOS information (Type 0) *
673	*********************************/
674	PDMIBIOSINF pBIOSInf = (PDMIBIOSINF)pszStr;
675	DMI_CHECK_SIZE(sizeof(*pBIOSInf));
676
677	pszStr = (char *)&pBIOSInf->u8ReleaseMajor;
678	pBIOSInf->header.u8Length = RT_OFFSETOF(DMIBIOSINF, u8ReleaseMajor);
679
680	/* don't set these fields by default for legacy compatibility */
681	int iDmiBIOSReleaseMajor, iDmiBIOSReleaseMinor;
682	DMI_READ_CFG_S32(iDmiBIOSReleaseMajor, DmiBIOSReleaseMajor);
683	DMI_READ_CFG_S32(iDmiBIOSReleaseMinor, DmiBIOSReleaseMinor);
684	if (iDmiBIOSReleaseMajor != 0 \|\| iDmiBIOSReleaseMinor != 0)
685	{
686	pszStr = (char *)&pBIOSInf->u8FirmwareMajor;
687	pBIOSInf->header.u8Length = RT_OFFSETOF(DMIBIOSINF, u8FirmwareMajor);
688	pBIOSInf->u8ReleaseMajor = iDmiBIOSReleaseMajor;
689	pBIOSInf->u8ReleaseMinor = iDmiBIOSReleaseMinor;
690
691	int iDmiBIOSFirmwareMajor, iDmiBIOSFirmwareMinor;
692	DMI_READ_CFG_S32(iDmiBIOSFirmwareMajor, DmiBIOSFirmwareMajor);
693	DMI_READ_CFG_S32(iDmiBIOSFirmwareMinor, DmiBIOSFirmwareMinor);
694	if (iDmiBIOSFirmwareMajor != 0 \|\| iDmiBIOSFirmwareMinor != 0)
695	{
696	pszStr = (char *)(pBIOSInf + 1);
697	pBIOSInf->header.u8Length = sizeof(DMIBIOSINF);
698	pBIOSInf->u8FirmwareMajor = iDmiBIOSFirmwareMajor;
699	pBIOSInf->u8FirmwareMinor = iDmiBIOSFirmwareMinor;
700	}
701	}
702
703	iStrNr = 1;
704	pBIOSInf->header.u8Type = 0; /* BIOS Information */
705	pBIOSInf->header.u16Handle = 0x0000;
706	DMI_READ_CFG_STR(pBIOSInf->u8Vendor, DmiBIOSVendor);
707	DMI_READ_CFG_STR(pBIOSInf->u8Version, DmiBIOSVersion);
708	pBIOSInf->u16Start = 0xE000;
709	DMI_READ_CFG_STR(pBIOSInf->u8Release, DmiBIOSReleaseDate);
710	pBIOSInf->u8ROMSize = 1; /* 128K */
711	pBIOSInf->u64Characteristics = RT_BIT(4) /* ISA is supported */
712	\| RT_BIT(7) /* PCI is supported */
713	\| RT_BIT(15) /* Boot from CD is supported */
714	\| RT_BIT(16) /* Selectable Boot is supported */
715	\| RT_BIT(27) /* Int 9h, 8042 Keyboard services supported */
716	\| RT_BIT(30) /* Int 10h, CGA/Mono Video Services supported */
717	/* any more?? */
718	;
719	pBIOSInf->u8CharacteristicsByte1 = RT_BIT(0) /* ACPI is supported */
720	/* any more?? */
721	;
722	pBIOSInf->u8CharacteristicsByte2 = fUefi ? RT_BIT(3) : 0
723	/* any more?? */
724	;
725	DMI_TERM_STRUCT;
726
727	/***********************************
728	* DMI system information (Type 1) *
729	***********************************/
730	PDMISYSTEMINF pSystemInf = (PDMISYSTEMINF)pszStr;
731	DMI_CHECK_SIZE(sizeof(*pSystemInf));
732	DMI_START_STRUCT(pSystemInf);
733	pSystemInf->header.u8Type = 1; /* System Information */
734	pSystemInf->header.u8Length = sizeof(*pSystemInf);
735	pSystemInf->header.u16Handle = 0x0001;
736	DMI_READ_CFG_STR(pSystemInf->u8Manufacturer, DmiSystemVendor);
737	DMI_READ_CFG_STR(pSystemInf->u8ProductName, DmiSystemProduct);
738	DMI_READ_CFG_STR(pSystemInf->u8Version, DmiSystemVersion);
739	DMI_READ_CFG_STR(pSystemInf->u8SerialNumber, DmiSystemSerial);
740
741	RTUUID uuid;
742	if (pszDmiSystemUuid)
743	{
744	rc = RTUuidFromStr(&uuid, pszDmiSystemUuid);
745	if (RT_FAILURE(rc))
746	{
747	if (fHideErrors)
748	{
749	LogRel(("Configuration error: Invalid UUID for DMI tables specified, using default DMI data\n"));
750	continue;
751	}
752	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
753	N_("Configuration error: Invalid UUID for DMI tables specified"));
754	}
755	uuid.Gen.u32TimeLow = RT_H2BE_U32(uuid.Gen.u32TimeLow);
756	uuid.Gen.u16TimeMid = RT_H2BE_U16(uuid.Gen.u16TimeMid);
757	uuid.Gen.u16TimeHiAndVersion = RT_H2BE_U16(uuid.Gen.u16TimeHiAndVersion);
758	pUuid = &uuid;
759	}
760	memcpy(pSystemInf->au8Uuid, pUuid, sizeof(RTUUID));
761
762	pSystemInf->u8WakeupType = 6; /* Power Switch */
763	DMI_READ_CFG_STR(pSystemInf->u8SKUNumber, DmiSystemSKU);
764	DMI_READ_CFG_STR(pSystemInf->u8Family, DmiSystemFamily);
765	DMI_TERM_STRUCT;
766
767	/**********************************
768	* DMI board information (Type 2) *
769	**********************************/
770	PDMIBOARDINF pBoardInf = (PDMIBOARDINF)pszStr;
771	DMI_CHECK_SIZE(sizeof(*pBoardInf));
772	DMI_START_STRUCT(pBoardInf);
773	int iDmiBoardBoardType;
774	pBoardInf->header.u8Type = 2; /* Board Information */
775	pBoardInf->header.u8Length = sizeof(*pBoardInf);
776	pBoardInf->header.u16Handle = 0x0008;
777	DMI_READ_CFG_STR(pBoardInf->u8Manufacturer, DmiBoardVendor);
778	DMI_READ_CFG_STR(pBoardInf->u8Product, DmiBoardProduct);
779	DMI_READ_CFG_STR(pBoardInf->u8Version, DmiBoardVersion);
780	DMI_READ_CFG_STR(pBoardInf->u8SerialNumber, DmiBoardSerial);
781	DMI_READ_CFG_STR(pBoardInf->u8AssetTag, DmiBoardAssetTag);
782	pBoardInf->u8FeatureFlags = RT_BIT(0) /* hosting board, e.g. motherboard */
783	;
784	DMI_READ_CFG_STR(pBoardInf->u8LocationInChass, DmiBoardLocInChass);
785	pBoardInf->u16ChassisHandle = 0x0003; /* see type 3 */
786	DMI_READ_CFG_S32(iDmiBoardBoardType, DmiBoardBoardType);
787	pBoardInf->u8BoardType = iDmiBoardBoardType;
788	pBoardInf->u8cObjectHandles = 0;
789
790	DMI_TERM_STRUCT;
791
792	/********************************************
793	* DMI System Enclosure or Chassis (Type 3) *
794	********************************************/
795	PDMICHASSIS pChassis = (PDMICHASSIS)pszStr;
796	DMI_CHECK_SIZE(sizeof(*pChassis));
797	pszStr = (char *)&pChassis->u32OEMdefined;
798	iStrNr = 1;
799	#ifdef VBOX_WITH_DMI_CHASSIS
800	pChassis->header.u8Type = 3; /* System Enclosure or Chassis */
801	#else
802	pChassis->header.u8Type = 0x7e; /* inactive */
803	#endif
804	pChassis->header.u8Length = RT_OFFSETOF(DMICHASSIS, u32OEMdefined);
805	pChassis->header.u16Handle = 0x0003;
806	DMI_READ_CFG_STR(pChassis->u8Manufacturer, DmiChassisVendor);
807	int iDmiChassisType;
808	DMI_READ_CFG_S32(iDmiChassisType, DmiChassisType);
809	pChassis->u8Type = iDmiChassisType;
810	DMI_READ_CFG_STR(pChassis->u8Version, DmiChassisVersion);
811	DMI_READ_CFG_STR(pChassis->u8SerialNumber, DmiChassisSerial);
812	DMI_READ_CFG_STR(pChassis->u8AssetTag, DmiChassisAssetTag);
813	pChassis->u8BootupState = 0x03; /* safe */
814	pChassis->u8PowerSupplyState = 0x03; /* safe */
815	pChassis->u8ThermalState = 0x03; /* safe */
816	pChassis->u8SecurityStatus = 0x03; /* none XXX */
817	# if 0
818	/* v2.3+, currently not supported */
819	pChassis->u32OEMdefined = 0;
820	pChassis->u8Height = 0; /* unspecified */
821	pChassis->u8NumPowerChords = 0; /* unspecified */
822	pChassis->u8ContElems = 0; /* no contained elements */
823	pChassis->u8ContElemRecLen = 0; /* no contained elements */
824	# endif
825	DMI_TERM_STRUCT;
826
827	/**************************************
828	* DMI Processor Information (Type 4) *
829	**************************************/
830
831	/*
832	* This is just a dummy processor. Should we expose the real guest CPU features
833	* here? Accessing this information at this point is difficult.
834	*/
835	char szSocket[32];
836	PDMIPROCESSORINF pProcessorInf = (PDMIPROCESSORINF)pszStr;
837	DMI_CHECK_SIZE(sizeof(*pProcessorInf));
838	DMI_START_STRUCT(pProcessorInf);
839	if (fDmiExposeProcessorInf)
840	pProcessorInf->header.u8Type = 4; /* Processor Information */
841	else
842	pProcessorInf->header.u8Type = 126; /* inactive structure */
843	pProcessorInf->header.u8Length = sizeof(*pProcessorInf);
844	pProcessorInf->header.u16Handle = 0x0007;
845	RTStrPrintf(szSocket, sizeof(szSocket), "Socket #%u", 0);
846	pProcessorInf->u8SocketDesignation = iStrNr++;
847	{
848	size_t const cbStr = strlen(szSocket) + 1;
849	DMI_CHECK_SIZE(cbStr);
850	pszStr = (char *)mempcpy(pszStr, szSocket, cbStr);
851	}
852	pProcessorInf->u8ProcessorType = 0x03; /* Central Processor */
853	pProcessorInf->u8ProcessorFamily = 0xB1; /* Pentium III with Intel SpeedStep(TM) */
854	DMI_READ_CFG_STR(pProcessorInf->u8ProcessorManufacturer, DmiProcManufacturer);
855
856	pProcessorInf->u64ProcessorID = UINT64_C(0x0FEBFBFF00010676);
857	/* Ext Family ID = 0
858	* Ext Model ID = 2
859	* Processor Type = 0
860	* Family ID = 6
861	* Model = 7
862	* Stepping = 6
863	* Features: FPU, VME, DE, PSE, TSC, MSR, PAE, MCE, CX8,
864	* APIC, SEP, MTRR, PGE, MCA, CMOV, PAT, PSE-36,
865	* CFLSH, DS, ACPI, MMX, FXSR, SSE, SSE2, SS */
866	DMI_READ_CFG_STR(pProcessorInf->u8ProcessorVersion, DmiProcVersion);
867	pProcessorInf->u8Voltage = 0x02; /* 3.3V */
868	pProcessorInf->u16ExternalClock = 0x00; /* unknown */
869	pProcessorInf->u16MaxSpeed = 3000; /* 3GHz */
870	pProcessorInf->u16CurrentSpeed = 3000; /* 3GHz */
871	pProcessorInf->u8Status = RT_BIT(6) /* CPU socket populated */
872	\| RT_BIT(0) /* CPU enabled */
873	;
874	pProcessorInf->u8ProcessorUpgrade = 0x04; /* ZIF Socket */
875	pProcessorInf->u16L1CacheHandle = 0xFFFF; /* not specified */
876	pProcessorInf->u16L2CacheHandle = 0xFFFF; /* not specified */
877	pProcessorInf->u16L3CacheHandle = 0xFFFF; /* not specified */
878	pProcessorInf->u8SerialNumber = 0; /* not specified */
879	pProcessorInf->u8AssetTag = 0; /* not specified */
880	pProcessorInf->u8PartNumber = 0; /* not specified */
881	pProcessorInf->u8CoreCount = cCpus; /* */
882	pProcessorInf->u8CoreEnabled = cCpus;
883	pProcessorInf->u8ThreadCount = 1;
884	pProcessorInf->u16ProcessorCharacteristics
885	= RT_BIT(2); /* 64-bit capable */
886	pProcessorInf->u16ProcessorFamily2 = 0;
887	DMI_TERM_STRUCT;
888
889	/***************************************
890	* DMI Physical Memory Array (Type 16) *
891	***************************************/
892	uint64_t const cbRamSize = PDMDevHlpMMPhysGetRamSize(pDevIns);
893
894	PDMIRAMARRAY pMemArray = (PDMIRAMARRAY)pszStr;
895	DMI_CHECK_SIZE(sizeof(*pMemArray));
896	DMI_START_STRUCT(pMemArray);
897	if (fDmiExposeMemoryTable)
898	pMemArray->header.u8Type = 16; /* Physical Memory Array */
899	else
900	pMemArray->header.u8Type = 126; /* inactive structure */
901	pMemArray->header.u8Length = sizeof(*pMemArray);
902	pMemArray->header.u16Handle = 0x0005;
903	pMemArray->u8Location = 0x03; /* Motherboard */
904	pMemArray->u8Use = 0x03; /* System memory */
905	pMemArray->u8MemErrorCorrection = 0x01; /* Other */
906	if (cbRamSize / _1K > INT32_MAX)
907	{
908	/** @todo 2TB-1K limit. In such cases we probably need to provide multiple type-16 descriptors.
909	* Or use 0x8000'0000 = 'capacity unknown'? */
910	AssertLogRelMsgFailed(("DMI: RAM size %#RX64 does not fit into type-16 descriptor, clipping to %#RX64\n",
911	cbRamSize, (uint64_t)INT32_MAX * _1K));
912	pMemArray->u32MaxCapacity = INT32_MAX;
913	}
914	else
915	pMemArray->u32MaxCapacity = (int32_t)(cbRamSize / _1K); /* RAM size in K */
916	pMemArray->u16MemErrorHandle = 0xfffe; /* No error info structure */
917	pMemArray->u16NumberOfMemDevices = 1;
918	DMI_TERM_STRUCT;
919
920	/***************************************
921	* DMI Memory Device (Type 17) *
922	***************************************/
923	PDMIMEMORYDEV pMemDev = (PDMIMEMORYDEV)pszStr;
924	DMI_CHECK_SIZE(sizeof(*pMemDev));
925	DMI_START_STRUCT(pMemDev);
926	if (fDmiExposeMemoryTable)
927	pMemDev->header.u8Type = 17; /* Memory Device */
928	else
929	pMemDev->header.u8Type = 126; /* inactive structure */
930	pMemDev->header.u8Length = sizeof(*pMemDev);
931	pMemDev->header.u16Handle = 0x0006;
932	pMemDev->u16PhysMemArrayHandle = 0x0005; /* handle of array we belong to */
933	pMemDev->u16MemErrHandle = 0xfffe; /* system doesn't provide this information */
934	pMemDev->u16TotalWidth = 0xffff; /* Unknown */
935	pMemDev->u16DataWidth = 0xffff; /* Unknown */
936	int16_t u16RamSizeM;
937	int32_t u32ExtRamSizeM = 0;
938	if (cbRamSize / _1M > INT16_MAX)
939	{
940	/* The highest bit of u16Size must be 0 to specify 'MB' units / 1 would be 'KB'.
941	* SMBIOS 2.7 introduced a 32-bit extended size. If module size is 32GB or greater,
942	* the old u16Size is set to 7FFFh; old parsers will see 32GB-1MB, new parsers will
943	* look at new u32ExtendedSize which can represent at least 128TB. OS X 10.14+ looks
944	* at the extended size.
945	*/
946	LogRel(("DMI: RAM size %#RX64 too big for one type-17 descriptor, clipping to %#RX64\n",
947	cbRamSize, (uint64_t)INT16_MAX * _1M));
948	u16RamSizeM = INT16_MAX;
949	if (cbRamSize / _1M >= 0x8000000) {
950	AssertLogRelMsgFailed(("DMI: RAM size %#RX64 too big for one type-17 descriptor, clipping to %#RX64\n",
951	cbRamSize, (uint64_t)INT32_MAX * _1M));
952	u32ExtRamSizeM = 0x8000000; /* 128TB */
953	}
954	else
955	u32ExtRamSizeM = cbRamSize / _1M;
956	}
957	else
958	u16RamSizeM = (uint16_t)(cbRamSize / _1M);
959	if (u16RamSizeM == 0)
960	u16RamSizeM = 0x400; /* 1G */
961	pMemDev->u16Size = u16RamSizeM; /* RAM size */
962	pMemDev->u32ExtendedSize = u32ExtRamSizeM;
963	pMemDev->u8FormFactor = 0x09; /* DIMM */
964	pMemDev->u8DeviceSet = 0x00; /* Not part of a device set */
965	DMI_READ_CFG_STR_DEF(pMemDev->u8DeviceLocator, " ", "DIMM 0");
966	DMI_READ_CFG_STR_DEF(pMemDev->u8BankLocator, " ", "Bank 0");
967	pMemDev->u8MemoryType = 0x03; /* DRAM */
968	pMemDev->u16TypeDetail = 0; /* Nothing special */
969	pMemDev->u16Speed = 1600; /* Unknown, shall be speed in MHz */
970	DMI_READ_CFG_STR(pMemDev->u8Manufacturer, DmiSystemVendor);
971	DMI_READ_CFG_STR_DEF(pMemDev->u8SerialNumber, " ", "00000000");
972	DMI_READ_CFG_STR_DEF(pMemDev->u8AssetTag, " ", "00000000");
973	DMI_READ_CFG_STR_DEF(pMemDev->u8PartNumber, " ", "00000000");
974	pMemDev->u8Attributes = 0; /* Unknown */
975	DMI_TERM_STRUCT;
976
977	/*****************************
978	* DMI OEM strings (Type 11) *
979	*****************************/
980	PDMIOEMSTRINGS pOEMStrings = (PDMIOEMSTRINGS)pszStr;
981	DMI_CHECK_SIZE(sizeof(*pOEMStrings));
982	DMI_START_STRUCT(pOEMStrings);
983	#ifdef VBOX_WITH_DMI_OEMSTRINGS
984	pOEMStrings->header.u8Type = 0xb; /* OEM Strings */
985	#else
986	pOEMStrings->header.u8Type = 126; /* inactive structure */
987	#endif
988	pOEMStrings->header.u8Length = sizeof(*pOEMStrings);
989	pOEMStrings->header.u16Handle = 0x0002;
990	pOEMStrings->u8Count = 2;
991
992	char szTmp[64];
993	RTStrPrintf(szTmp, sizeof(szTmp), "vboxVer_%u.%u.%u",
994	RTBldCfgVersionMajor(), RTBldCfgVersionMinor(), RTBldCfgVersionBuild());
995	DMI_READ_CFG_STR_DEF(pOEMStrings->u8VBoxVersion, "DmiOEMVBoxVer", szTmp);
996	RTStrPrintf(szTmp, sizeof(szTmp), "vboxRev_%u", RTBldCfgRevision());
997	DMI_READ_CFG_STR_DEF(pOEMStrings->u8VBoxRevision, "DmiOEMVBoxRev", szTmp);
998	DMI_TERM_STRUCT;
999
1000	/*************************************
1001	* DMI OEM specific table (Type 128) *
1002	************************************/
1003	PDMIOEMSPECIFIC pOEMSpecific = (PDMIOEMSPECIFIC)pszStr;
1004	DMI_CHECK_SIZE(sizeof(*pOEMSpecific));
1005	DMI_START_STRUCT(pOEMSpecific);
1006	pOEMSpecific->header.u8Type = 0x80; /* OEM specific */
1007	pOEMSpecific->header.u8Length = sizeof(*pOEMSpecific);
1008	pOEMSpecific->header.u16Handle = 0x0008; /* Just next free handle */
1009	pOEMSpecific->u32CpuFreqKHz = RT_H2LE_U32((uint32_t)((uint64_t)PDMDevHlpTMCpuTicksPerSecond(pDevIns) / 1000));
1010	DMI_TERM_STRUCT;
1011
1012	/* End-of-table marker - includes padding to account for fixed table size. */
1013	PDMIHDR pEndOfTable = (PDMIHDR)pszStr;
1014	pszStr = (char *)(pEndOfTable + 1);
1015	pEndOfTable->u8Type = 0x7f;
1016
1017	pEndOfTable->u8Length = sizeof(*pEndOfTable);
1018	pEndOfTable->u16Handle = 0xFEFF;
1019	*pcbDmiTables = ((uintptr_t)pszStr - (uintptr_t)pTable) + 2;
1020
1021	/* We currently plant 10 DMI tables. Update this if tables number changed. */
1022	*pcDmiTables = 10;
1023
1024	/* If more fields are added here, fix the size check in DMI_READ_CFG_STR */
1025
1026	/* Success! */
1027	break;
1028	}
1029
1030	#undef DMI_READ_CFG_STR
1031	#undef DMI_READ_CFG_S32
1032	#undef DMI_CHECK_SIZE
1033	return VINF_SUCCESS;
1034	}
1035
1036	/**
1037	* Construct the SMBIOS and DMI headers table pointer at VM construction and
1038	* reset.
1039	*
1040	* @param pDevIns The device instance data.
1041	* @param pHdr Pointer to the header destination.
1042	* @param cbDmiTables Size of all DMI tables planted in bytes.
1043	* @param cNumDmiTables Number of DMI tables planted.
1044	*/
1045	void FwCommonPlantSmbiosAndDmiHdrs(PPDMDEVINS pDevIns, uint8_t *pHdr, uint16_t cbDmiTables, uint16_t cNumDmiTables)
1046	{
1047	RT_NOREF(pDevIns);
1048
1049	struct
1050	{
1051	struct SMBIOSHDR smbios;
1052	struct DMIMAINHDR dmi;
1053	}
1054	aBiosHeaders =
1055	{
1056	// The SMBIOS header
1057	{
1058	{ 0x5f, 0x53, 0x4d, 0x5f}, // "_SM_" signature
1059	0x00, // checksum
1060	0x1f, // EPS length, defined by standard
1061	VBOX_SMBIOS_MAJOR_VER, // SMBIOS major version
1062	VBOX_SMBIOS_MINOR_VER, // SMBIOS minor version
1063	VBOX_SMBIOS_MAXSS, // Maximum structure size
1064	0x00, // Entry point revision
1065	{ 0x00, 0x00, 0x00, 0x00, 0x00 } // padding
1066	},
1067	// The DMI header
1068	{
1069	{ 0x5f, 0x44, 0x4d, 0x49, 0x5f }, // "_DMI_" signature
1070	0x00, // checksum
1071	0, // DMI tables length
1072	VBOX_DMI_TABLE_BASE, // DMI tables base
1073	0, // DMI tables entries
1074	VBOX_DMI_TABLE_VER, // DMI version
1075	}
1076	};
1077
1078	aBiosHeaders.dmi.u16TablesLength = cbDmiTables;
1079	aBiosHeaders.dmi.u16TableEntries = cNumDmiTables;
1080	/* NB: The _SM_ table checksum technically covers both the _SM_ part (16 bytes) and the _DMI_ part
1081	* (further 15 bytes). However, because the _DMI_ checksum must be zero, the _SM_ checksum can
1082	* be calculated independently.
1083	*/
1084	aBiosHeaders.smbios.u8Checksum = fwCommonChecksum((uint8_t*)&aBiosHeaders.smbios, sizeof(aBiosHeaders.smbios));
1085	aBiosHeaders.dmi.u8Checksum = fwCommonChecksum((uint8_t*)&aBiosHeaders.dmi, sizeof(aBiosHeaders.dmi));
1086
1087	memcpy(pHdr, &aBiosHeaders, sizeof(aBiosHeaders));
1088	}
1089
1090	/**
1091	* Construct the MPS table for implanting as a ROM page.
1092	*
1093	* Only applicable if IOAPIC is active!
1094	*
1095	* See ``MultiProcessor Specification Version 1.4 (May 1997)'':
1096	* ``1.3 Scope
1097	* ...
1098	* The hardware required to implement the MP specification is kept to a
1099	* minimum, as follows:
1100	* * One or more processors that are Intel architecture instruction set
1101	* compatible, such as the CPUs in the Intel486 or Pentium processor
1102	* family.
1103	* * One or more APICs, such as the Intel 82489DX Advanced Programmable
1104	* Interrupt Controller or the integrated APIC, such as that on the
1105	* Intel Pentium 735\\90 and 815\\100 processors, together with a discrete
1106	* I/O APIC unit.''
1107	* and later:
1108	* ``4.3.3 I/O APIC Entries
1109	* The configuration table contains one or more entries for I/O APICs.
1110	* ...
1111	* I/O APIC FLAGS: EN 3:0 1 If zero, this I/O APIC is unusable, and the
1112	* operating system should not attempt to access
1113	* this I/O APIC.
1114	* At least one I/O APIC must be enabled.''
1115	*
1116	* @param pDevIns The device instance data.
1117	* @param pTable Where to write the table.
1118	* @param cbMax The maximum size of the MPS table.
1119	* @param cCpus The number of guest CPUs.
1120	*/
1121	void FwCommonPlantMpsTable(PPDMDEVINS pDevIns, uint8_t *pTable, unsigned cbMax, uint16_t cCpus)
1122	{
1123	RT_NOREF1(cbMax);
1124
1125	/* configuration table */
1126	PMPSCFGTBLHEADER pCfgTab = (MPSCFGTBLHEADER*)pTable;
1127	memcpy(pCfgTab->au8Signature, "PCMP", 4);
1128	pCfgTab->u8SpecRev = 4; /* 1.4 */
1129	memcpy(pCfgTab->au8OemId, "VBOXCPU ", 8);
1130	memcpy(pCfgTab->au8ProductId, "VirtualBox ", 12);
1131	pCfgTab->u32OemTablePtr = 0;
1132	pCfgTab->u16OemTableSize = 0;
1133	pCfgTab->u16EntryCount = 0; /* Incremented as we go. */
1134	pCfgTab->u32AddrLocalApic = 0xfee00000;
1135	pCfgTab->u16ExtTableLength = 0;
1136	pCfgTab->u8ExtTableChecksum = 0;
1137	pCfgTab->u8Reserved = 0;
1138
1139	uint32_t u32Eax, u32Ebx, u32Ecx, u32Edx;
1140	uint32_t u32CPUSignature = 0x0520; /* default: Pentium 100 */
1141	uint32_t u32FeatureFlags = 0x0001; /* default: FPU */
1142	PDMDevHlpGetCpuId(pDevIns, 0, &u32Eax, &u32Ebx, &u32Ecx, &u32Edx);
1143	if (u32Eax >= 1)
1144	{
1145	PDMDevHlpGetCpuId(pDevIns, 1, &u32Eax, &u32Ebx, &u32Ecx, &u32Edx);
1146	u32CPUSignature = u32Eax & 0xfff;
1147	/* Local APIC will be enabled later so override it here. Since we provide
1148	* an MP table we have an IOAPIC and therefore a Local APIC. */
1149	u32FeatureFlags = u32Edx \| X86_CPUID_FEATURE_EDX_APIC;
1150	}
1151	/* Construct MPS table for each VCPU. */
1152	PMPSPROCENTRY pProcEntry = (PMPSPROCENTRY)(pCfgTab+1);
1153	for (int i = 0; i < cCpus; i++)
1154	{
1155	pProcEntry->u8EntryType = 0; /* processor entry */
1156	pProcEntry->u8LocalApicId = i;
1157	pProcEntry->u8LocalApicVersion = 0x14;
1158	pProcEntry->u8CPUFlags = (i == 0 ? 2 /* bootstrap processor / : 0 / application processor /) \| 1 / enabled */;
1159	pProcEntry->u32CPUSignature = u32CPUSignature;
1160	pProcEntry->u32CPUFeatureFlags = u32FeatureFlags;
1161	pProcEntry->u32Reserved[0] =
1162	pProcEntry->u32Reserved[1] = 0;
1163	pProcEntry++;
1164	pCfgTab->u16EntryCount++;
1165	}
1166
1167	uint32_t iBusIdIsa = 0;
1168	uint32_t iBusIdPci0 = 1;
1169
1170	/* ISA bus */
1171	PMPSBUSENTRY pBusEntry = (PMPSBUSENTRY)pProcEntry;
1172	pBusEntry->u8EntryType = 1; /* bus entry */
1173	pBusEntry->u8BusId = iBusIdIsa; /* this ID is referenced by the interrupt entries */
1174	memcpy(pBusEntry->au8BusTypeStr, "ISA ", 6);
1175	pBusEntry++;
1176	pCfgTab->u16EntryCount++;
1177
1178	/* PCI bus */
1179	pBusEntry->u8EntryType = 1; /* bus entry */
1180	pBusEntry->u8BusId = iBusIdPci0; /* this ID can be referenced by the interrupt entries */
1181	memcpy(pBusEntry->au8BusTypeStr, "PCI ", 6);
1182	pBusEntry++;
1183	pCfgTab->u16EntryCount++;
1184
1185
1186	/* I/O-APIC.
1187	* MP spec: "The configuration table contains one or more entries for I/O APICs.
1188	* ... At least one I/O APIC must be enabled." */
1189	PMPSIOAPICENTRY pIOAPICEntry = (PMPSIOAPICENTRY)(pBusEntry);
1190	uint16_t iApicId = 0;
1191	pIOAPICEntry->u8EntryType = 2; /* I/O-APIC entry */
1192	pIOAPICEntry->u8Id = iApicId; /* this ID is referenced by the interrupt entries */
1193	pIOAPICEntry->u8Version = 0x11;
1194	pIOAPICEntry->u8Flags = 1 /* enable */;
1195	pIOAPICEntry->u32Addr = 0xfec00000;
1196	pCfgTab->u16EntryCount++;
1197
1198	/* Interrupt tables */
1199	/* Bus vectors */
1200	/* Note: The PIC is currently not routed to the I/O APIC. Therefore we skip
1201	* pin 0 on the I/O APIC.
1202	*/
1203	PMPSIOIRQENTRY pIrqEntry = (PMPSIOIRQENTRY)(pIOAPICEntry+1);
1204	for (int iPin = 1; iPin < 16; iPin++, pIrqEntry++)
1205	{
1206	pIrqEntry->u8EntryType = 3; /* I/O interrupt entry */
1207	/*
1208	* 0 - INT, vectored interrupt,
1209	* 3 - ExtINT, vectored interrupt provided by PIC
1210	* As we emulate system with both APIC and PIC, it's needed for their coexistence.
1211	*/
1212	pIrqEntry->u8Type = (iPin == 0) ? 3 : 0;
1213	pIrqEntry->u16Flags = 0; /* polarity of APIC I/O input signal = conforms to bus,
1214	trigger mode = conforms to bus */
1215	pIrqEntry->u8SrcBusId = iBusIdIsa; /* ISA bus */
1216	/* IRQ0 mapped to pin 2, other are identity mapped */
1217	/* If changing, also update PDMIsaSetIrq() and MADT */
1218	pIrqEntry->u8SrcBusIrq = (iPin == 2) ? 0 : iPin; /* IRQ on the bus */
1219	pIrqEntry->u8DstIOAPICId = iApicId; /* destination IO-APIC */
1220	pIrqEntry->u8DstIOAPICInt = iPin; /* pin on destination IO-APIC */
1221	pCfgTab->u16EntryCount++;
1222	}
1223	/* Local delivery */
1224	pIrqEntry->u8EntryType = 4; /* Local interrupt entry */
1225	pIrqEntry->u8Type = 3; /* ExtINT */
1226	pIrqEntry->u16Flags = (1 << 2) \| 1; /* active-high, edge-triggered */
1227	pIrqEntry->u8SrcBusId = iBusIdIsa;
1228	pIrqEntry->u8SrcBusIrq = 0;
1229	pIrqEntry->u8DstIOAPICId = 0xff;
1230	pIrqEntry->u8DstIOAPICInt = 0;
1231	pIrqEntry++;
1232	pCfgTab->u16EntryCount++;
1233	pIrqEntry->u8EntryType = 4; /* Local interrupt entry */
1234	pIrqEntry->u8Type = 1; /* NMI */
1235	pIrqEntry->u16Flags = (1 << 2) \| 1; /* active-high, edge-triggered */
1236	pIrqEntry->u8SrcBusId = iBusIdIsa;
1237	pIrqEntry->u8SrcBusIrq = 0;
1238	pIrqEntry->u8DstIOAPICId = 0xff;
1239	pIrqEntry->u8DstIOAPICInt = 1;
1240	pIrqEntry++;
1241	pCfgTab->u16EntryCount++;
1242
1243	pCfgTab->u16Length = (uint8_t*)pIrqEntry - pTable;
1244	pCfgTab->u8Checksum = fwCommonChecksum(pTable, pCfgTab->u16Length);
1245
1246	AssertMsg(pCfgTab->u16Length < cbMax,
1247	("VBOX_MPS_TABLE_SIZE=%d, maximum allowed size is %d",
1248	pCfgTab->u16Length, cbMax));
1249	}
1250
1251	/**
1252	* Construct the MPS table pointer at VM construction and reset.
1253	*
1254	* Only applicable if IOAPIC is active!
1255	*
1256	* @param pDevIns The device instance data.
1257	* @param u32MpTableAddr The MP table physical address.
1258	*/
1259	void FwCommonPlantMpsFloatPtr(PPDMDEVINS pDevIns, uint32_t u32MpTableAddr)
1260	{
1261	MPSFLOATPTR floatPtr;
1262	floatPtr.au8Signature[0] = '_';
1263	floatPtr.au8Signature[1] = 'M';
1264	floatPtr.au8Signature[2] = 'P';
1265	floatPtr.au8Signature[3] = '_';
1266	floatPtr.u32MPSAddr = u32MpTableAddr;
1267	floatPtr.u8Length = 1; /* structure size in paragraphs */
1268	floatPtr.u8SpecRev = 4; /* MPS revision 1.4 */
1269	floatPtr.u8Checksum = 0;
1270	floatPtr.au8Feature[0] = 0;
1271	floatPtr.au8Feature[1] = 0;
1272	floatPtr.au8Feature[2] = 0;
1273	floatPtr.au8Feature[3] = 0;
1274	floatPtr.au8Feature[4] = 0;
1275	floatPtr.u8Checksum = fwCommonChecksum((uint8_t*)&floatPtr, 16);
1276	PDMDevHlpPhysWrite(pDevIns, 0x9fff0, &floatPtr, 16);
1277	}
1278

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source: vbox/trunk/src/VBox/Devices/PC/DevFwCommon.cpp@ 101359

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