DevPcBios.cpp@ 46757

Last change on this file since 46757 was 46356, checked in by vboxsync, 12 years ago
Devices/PC/DMI: added DmiChassisType and fixed documentation of DmiBoardBoardType -- missing adapations
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1	/* $Id: DevPcBios.cpp 46356 2013-06-03 10:10:02Z vboxsync $ */
2	/** @file
3	* DevPcBios - PC BIOS Device.
4	*/
5
6	/*
7	* Copyright (C) 2006-2013 Oracle Corporation
8	*
9	* This file is part of VirtualBox Open Source Edition (OSE), as
10	* available from http://www.virtualbox.org. This file is free software;
11	* you can redistribute it and/or modify it under the terms of the GNU
12	* General Public License (GPL) as published by the Free Software
13	* Foundation, in version 2 as it comes in the "COPYING" file of the
14	* VirtualBox OSE distribution. VirtualBox OSE is distributed in the
15	* hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
16	*/
17
18	/*******************************************************************************
19	* Header Files *
20	*******************************************************************************/
21	#define LOG_GROUP LOG_GROUP_DEV_PC_BIOS
22	#include <VBox/vmm/pdmdev.h>
23	#include <VBox/vmm/mm.h>
24	#include <VBox/vmm/pgm.h>
25
26	#include <VBox/log.h>
27	#include <iprt/asm.h>
28	#include <iprt/assert.h>
29	#include <iprt/buildconfig.h>
30	#include <iprt/file.h>
31	#include <iprt/mem.h>
32	#include <iprt/string.h>
33	#include <iprt/uuid.h>
34	#include <iprt/cdefs.h>
35	#include <VBox/err.h>
36	#include <VBox/param.h>
37
38	#include "VBoxDD.h"
39	#include "VBoxDD2.h"
40	#include "DevPcBios.h"
41	#include "DevFwCommon.h"
42
43	#define NET_BOOT_DEVS 4
44
45
46	/** @page pg_devbios_cmos_assign CMOS Assignments (BIOS)
47	*
48	* The BIOS uses a CMOS to store configuration data.
49	* It is currently used as follows:
50	*
51	* @verbatim
52	First CMOS bank (offsets 0x00 to 0x7f):
53	Floppy drive type:
54	0x10
55	Hard disk type (old):
56	0x12
57	Equipment byte:
58	0x14
59	Base memory:
60	0x15
61	0x16
62	Extended memory:
63	0x17
64	0x18
65	0x30
66	0x31
67	First IDE HDD:
68	0x19
69	0x1e - 0x25
70	Second IDE HDD:
71	0x1a
72	0x26 - 0x2d
73	Checksum of 0x10-0x2d:
74	0x2e
75	0x2f
76	Amount of memory above 16M and below 4GB in 64KB units:
77	0x34
78	0x35
79	Boot device (BOCHS BIOS specific):
80	0x38
81	0x3c
82	0x3d
83	PXE debug:
84	0x3f
85	First SATA HDD:
86	0x40 - 0x47
87	Second SATA HDD:
88	0x48 - 0x4f
89	Third SATA HDD:
90	0x50 - 0x57
91	Fourth SATA HDD:
92	0x58 - 0x5f
93	Number of CPUs:
94	0x60
95	RAM above 4G in 64KB units:
96	0x61 - 0x65
97	Third IDE HDD:
98	0x67 - 0x6e
99	Fourth IDE HDD:
100	0x70 - 0x77
101
102	Second CMOS bank (offsets 0x80 to 0xff):
103	Reserved for internal use by PXE ROM:
104	0x80 - 0x81
105	First net boot device PCI bus/dev/fn:
106	0x82 - 0x83
107	Second to third net boot devices:
108	0x84 - 0x89
109	@endverbatim
110	*
111	* @todo Mark which bits are compatible with which BIOSes and
112	* which are our own definitions.
113	*/
114
115
116	/*******************************************************************************
117	* Structures and Typedefs *
118	*******************************************************************************/
119
120	/**
121	* The boot device.
122	*/
123	typedef enum DEVPCBIOSBOOT
124	{
125	DEVPCBIOSBOOT_NONE,
126	DEVPCBIOSBOOT_FLOPPY,
127	DEVPCBIOSBOOT_HD,
128	DEVPCBIOSBOOT_DVD,
129	DEVPCBIOSBOOT_LAN
130	} DEVPCBIOSBOOT;
131
132	/**
133	* PC Bios instance data structure.
134	*/
135	typedef struct DEVPCBIOS
136	{
137	/** Pointer back to the device instance. */
138	PPDMDEVINS pDevIns;
139
140	/** Boot devices (ordered). */
141	DEVPCBIOSBOOT aenmBootDevice[4];
142	/** RAM size (in bytes). */
143	uint64_t cbRam;
144	/** RAM hole size (in bytes). */
145	uint32_t cbRamHole;
146	/** Bochs shutdown index. */
147	uint32_t iShutdown;
148	/** Floppy device. */
149	char *pszFDDevice;
150	/** Harddisk device. */
151	char *pszHDDevice;
152	/** Sata harddisk device. */
153	char *pszSataDevice;
154	/** LUN of the four harddisks which are emulated as IDE. */
155	uint32_t iSataHDLUN[4];
156	/** Bios message buffer. */
157	char szMsg[256];
158	/** Bios message buffer index. */
159	uint32_t iMsg;
160	/** The system BIOS ROM data. */
161	uint8_t *pu8PcBios;
162	/** The size of the system BIOS ROM. */
163	uint32_t cbPcBios;
164	/** The name of the BIOS ROM file. */
165	char *pszPcBiosFile;
166	/** The LAN boot ROM data. */
167	uint8_t *pu8LanBoot;
168	/** The name of the LAN boot ROM file. */
169	char *pszLanBootFile;
170	/** The size of the LAN boot ROM. */
171	uint64_t cbLanBoot;
172	/** The DMI tables. */
173	uint8_t au8DMIPage[0x1000];
174	/** The boot countdown (in seconds). */
175	uint8_t uBootDelay;
176	/** I/O-APIC enabled? */
177	uint8_t u8IOAPIC;
178	/** PXE debug logging enabled? */
179	uint8_t u8PXEDebug;
180	/** PXE boot PCI bus/dev/fn list. */
181	uint16_t au16NetBootDev[NET_BOOT_DEVS];
182	/** Number of logical CPUs in guest */
183	uint16_t cCpus;
184	uint32_t u32McfgBase;
185	uint32_t cbMcfgLength;
186	} DEVPCBIOS;
187	/** Pointer to the BIOS device state. */
188	typedef DEVPCBIOS *PDEVPCBIOS;
189
190
191	/**
192	* @callback_method_impl{FNIOMIOPORTIN, Boch Debug and Shutdown ports.}
193	*/
194	static DECLCALLBACK(int) pcbiosIOPortRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT Port, uint32_t pu32, unsigned cb)
195	{
196	return VERR_IOM_IOPORT_UNUSED;
197	}
198
199
200	/**
201	* @callback_method_impl{FNIOMIOPORTOUT, Boch Debug and Shutdown ports.}
202	*/
203	static DECLCALLBACK(int) pcbiosIOPortWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb)
204	{
205	/*
206	* Bochs BIOS char printing.
207	*/
208	if ( cb == 1
209	&& ( Port == 0x402
210	\|\| Port == 0x403))
211	{
212	PDEVPCBIOS pThis = PDMINS_2_DATA(pDevIns, PDEVPCBIOS);
213	/* The raw version. */
214	switch (u32)
215	{
216	case '\r': Log2(("pcbios: <return>\n")); break;
217	case '\n': Log2(("pcbios: <newline>\n")); break;
218	case '\t': Log2(("pcbios: <tab>\n")); break;
219	default: Log2(("pcbios: %c (%02x)\n", u32, u32)); break;
220	}
221
222	/* The readable, buffered version. */
223	if (u32 == '\n' \|\| u32 == '\r')
224	{
225	pThis->szMsg[pThis->iMsg] = '\0';
226	if (pThis->iMsg)
227	Log(("pcbios: %s\n", pThis->szMsg));
228	pThis->iMsg = 0;
229	}
230	else
231	{
232	if (pThis->iMsg >= sizeof(pThis->szMsg)-1)
233	{
234	pThis->szMsg[pThis->iMsg] = '\0';
235	Log(("pcbios: %s\n", pThis->szMsg));
236	pThis->iMsg = 0;
237	}
238	pThis->szMsg[pThis->iMsg] = (char )u32;
239	pThis->szMsg[++pThis->iMsg] = '\0';
240	}
241	return VINF_SUCCESS;
242	}
243
244	/*
245	* Bochs BIOS shutdown request.
246	*/
247	if (cb == 1 && Port == 0x8900)
248	{
249	static const unsigned char szShutdown[] = "Shutdown";
250	PDEVPCBIOS pThis = PDMINS_2_DATA(pDevIns, PDEVPCBIOS);
251	if (u32 == szShutdown[pThis->iShutdown])
252	{
253	pThis->iShutdown++;
254	if (pThis->iShutdown == 8)
255	{
256	pThis->iShutdown = 0;
257	LogRel(("DevPcBios: 8900h shutdown request.\n"));
258	return PDMDevHlpVMPowerOff(pDevIns);
259	}
260	}
261	else
262	pThis->iShutdown = 0;
263	return VINF_SUCCESS;
264	}
265
266	/* not in use. */
267	return VINF_SUCCESS;
268	}
269
270
271	/**
272	* Attempt to guess the LCHS disk geometry from the MS-DOS master boot record
273	* (partition table).
274	*
275	* @returns VBox status code.
276	* @param pBlock The block device interface of the disk.
277	* @param pLCHSGeometry Where to return the disk geometry on success
278	*/
279	static int biosGuessDiskLCHS(PPDMIBLOCK pBlock, PPDMMEDIAGEOMETRY pLCHSGeometry)
280	{
281	uint8_t aMBR[512], *p;
282	int rc;
283	uint32_t iEndHead, iEndSector, cLCHSCylinders, cLCHSHeads, cLCHSSectors;
284
285	if (!pBlock)
286	return VERR_INVALID_PARAMETER;
287	rc = pBlock->pfnRead(pBlock, 0, aMBR, sizeof(aMBR));
288	if (RT_FAILURE(rc))
289	return rc;
290	/* Test MBR magic number. */
291	if (aMBR[510] != 0x55 \|\| aMBR[511] != 0xaa)
292	return VERR_INVALID_PARAMETER;
293	for (uint32_t i = 0; i < 4; i++)
294	{
295	/* Figure out the start of a partition table entry. */
296	p = &aMBR[0x1be + i * 16];
297	iEndHead = p[5];
298	iEndSector = p[6] & 63;
299	if ((p[12] \| p[13] \| p[14] \| p[15]) && iEndSector & iEndHead)
300	{
301	/* Assumption: partition terminates on a cylinder boundary. */
302	cLCHSHeads = iEndHead + 1;
303	cLCHSSectors = iEndSector;
304	cLCHSCylinders = RT_MIN(1024, pBlock->pfnGetSize(pBlock) / (512 * cLCHSHeads * cLCHSSectors));
305	if (cLCHSCylinders >= 1)
306	{
307	pLCHSGeometry->cCylinders = cLCHSCylinders;
308	pLCHSGeometry->cHeads = cLCHSHeads;
309	pLCHSGeometry->cSectors = cLCHSSectors;
310	Log(("%s: LCHS=%d %d %d\n", __FUNCTION__, cLCHSCylinders, cLCHSHeads, cLCHSSectors));
311	return VINF_SUCCESS;
312	}
313	}
314	}
315	return VERR_INVALID_PARAMETER;
316	}
317
318
319	/**
320	* Write to CMOS memory.
321	* This is used by the init complete code.
322	*/
323	static void pcbiosCmosWrite(PPDMDEVINS pDevIns, int off, uint32_t u32Val)
324	{
325	Assert(off < 256);
326	Assert(u32Val < 256);
327
328	int rc = PDMDevHlpCMOSWrite(pDevIns, off, u32Val);
329	AssertRC(rc);
330	}
331
332
333	/**
334	* Read from CMOS memory.
335	* This is used by the init complete code.
336	*/
337	static uint8_t pcbiosCmosRead(PPDMDEVINS pDevIns, int off)
338	{
339	uint8_t u8val;
340
341	Assert(off < 256);
342
343	int rc = PDMDevHlpCMOSRead(pDevIns, off, &u8val);
344	AssertRC(rc);
345
346	return u8val;
347	}
348
349
350	/**
351	* Initializes the CMOS data for one harddisk.
352	*/
353	static void pcbiosCmosInitHardDisk(PPDMDEVINS pDevIns, int offType, int offInfo, PCPDMMEDIAGEOMETRY pLCHSGeometry)
354	{
355	Log2(("%s: offInfo=%#x: LCHS=%d/%d/%d\n", __FUNCTION__, offInfo, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
356	if (offType)
357	pcbiosCmosWrite(pDevIns, offType, 47);
358	/* Cylinders low */
359	pcbiosCmosWrite(pDevIns, offInfo + 0, RT_MIN(pLCHSGeometry->cCylinders, 1024) & 0xff);
360	/* Cylinders high */
361	pcbiosCmosWrite(pDevIns, offInfo + 1, RT_MIN(pLCHSGeometry->cCylinders, 1024) >> 8);
362	/* Heads */
363	pcbiosCmosWrite(pDevIns, offInfo + 2, pLCHSGeometry->cHeads);
364	/* Landing zone low */
365	pcbiosCmosWrite(pDevIns, offInfo + 3, 0xff);
366	/* Landing zone high */
367	pcbiosCmosWrite(pDevIns, offInfo + 4, 0xff);
368	/* Write precomp low */
369	pcbiosCmosWrite(pDevIns, offInfo + 5, 0xff);
370	/* Write precomp high */
371	pcbiosCmosWrite(pDevIns, offInfo + 6, 0xff);
372	/* Sectors */
373	pcbiosCmosWrite(pDevIns, offInfo + 7, pLCHSGeometry->cSectors);
374	}
375
376
377	/**
378	* Set logical CHS geometry for a hard disk
379	*
380	* @returns VBox status code.
381	* @param pBase Base interface for the device.
382	* @param pHardDisk The hard disk.
383	* @param pLCHSGeometry Where to store the geometry settings.
384	*/
385	static int setLogicalDiskGeometry(PPDMIBASE pBase, PPDMIBLOCKBIOS pHardDisk, PPDMMEDIAGEOMETRY pLCHSGeometry)
386	{
387	PDMMEDIAGEOMETRY LCHSGeometry;
388	int rc = VINF_SUCCESS;
389
390	rc = pHardDisk->pfnGetLCHSGeometry(pHardDisk, &LCHSGeometry);
391	if ( rc == VERR_PDM_GEOMETRY_NOT_SET
392	\|\| LCHSGeometry.cCylinders == 0
393	\|\| LCHSGeometry.cHeads == 0
394	\|\| LCHSGeometry.cHeads > 255
395	\|\| LCHSGeometry.cSectors == 0
396	\|\| LCHSGeometry.cSectors > 63)
397	{
398	PPDMIBLOCK pBlock;
399	pBlock = PDMIBASE_QUERY_INTERFACE(pBase, PDMIBLOCK);
400	/* No LCHS geometry, autodetect and set. */
401	rc = biosGuessDiskLCHS(pBlock, &LCHSGeometry);
402	if (RT_FAILURE(rc))
403	{
404	/* Try if PCHS geometry works, otherwise fall back. */
405	rc = pHardDisk->pfnGetPCHSGeometry(pHardDisk, &LCHSGeometry);
406	}
407	if ( RT_FAILURE(rc)
408	\|\| LCHSGeometry.cCylinders == 0
409	\|\| LCHSGeometry.cCylinders > 1024
410	\|\| LCHSGeometry.cHeads == 0
411	\|\| LCHSGeometry.cHeads > 16
412	\|\| LCHSGeometry.cSectors == 0
413	\|\| LCHSGeometry.cSectors > 63)
414	{
415	uint64_t cSectors = pBlock->pfnGetSize(pBlock) / 512;
416	if (cSectors / 16 / 63 <= 1024)
417	{
418	LCHSGeometry.cCylinders = RT_MAX(cSectors / 16 / 63, 1);
419	LCHSGeometry.cHeads = 16;
420	}
421	else if (cSectors / 32 / 63 <= 1024)
422	{
423	LCHSGeometry.cCylinders = RT_MAX(cSectors / 32 / 63, 1);
424	LCHSGeometry.cHeads = 32;
425	}
426	else if (cSectors / 64 / 63 <= 1024)
427	{
428	LCHSGeometry.cCylinders = cSectors / 64 / 63;
429	LCHSGeometry.cHeads = 64;
430	}
431	else if (cSectors / 128 / 63 <= 1024)
432	{
433	LCHSGeometry.cCylinders = cSectors / 128 / 63;
434	LCHSGeometry.cHeads = 128;
435	}
436	else
437	{
438	LCHSGeometry.cCylinders = RT_MIN(cSectors / 255 / 63, 1024);
439	LCHSGeometry.cHeads = 255;
440	}
441	LCHSGeometry.cSectors = 63;
442
443	}
444	rc = pHardDisk->pfnSetLCHSGeometry(pHardDisk, &LCHSGeometry);
445	if (rc == VERR_VD_IMAGE_READ_ONLY)
446	{
447	LogRel(("DevPcBios: ATA failed to update LCHS geometry, read only\n"));
448	rc = VINF_SUCCESS;
449	}
450	else if (rc == VERR_PDM_GEOMETRY_NOT_SET)
451	{
452	LogRel(("DevPcBios: ATA failed to update LCHS geometry, backend refused\n"));
453	rc = VINF_SUCCESS;
454	}
455	}
456
457	*pLCHSGeometry = LCHSGeometry;
458
459	return rc;
460	}
461
462
463	/**
464	* Get BIOS boot code from enmBootDevice in order
465	*
466	* @todo r=bird: This is a rather silly function since the conversion is 1:1.
467	*/
468	static uint8_t getBiosBootCode(PDEVPCBIOS pThis, unsigned iOrder)
469	{
470	switch (pThis->aenmBootDevice[iOrder])
471	{
472	case DEVPCBIOSBOOT_NONE:
473	return 0;
474	case DEVPCBIOSBOOT_FLOPPY:
475	return 1;
476	case DEVPCBIOSBOOT_HD:
477	return 2;
478	case DEVPCBIOSBOOT_DVD:
479	return 3;
480	case DEVPCBIOSBOOT_LAN:
481	return 4;
482	default:
483	AssertMsgFailed(("aenmBootDevice[%d]=%d\n", iOrder, pThis->aenmBootDevice[iOrder]));
484	return 0;
485	}
486	}
487
488
489	/**
490	* @interface_method_impl{PDMDEVREG,pfnInitComplete}
491	*
492	* This routine will write information needed by the bios to the CMOS.
493	*
494	* @see http://www.brl.ntt.co.jp/people/takehiko/interrupt/CMOS.LST.txt for
495	* a description of standard and non-standard CMOS registers.
496	*/
497	static DECLCALLBACK(int) pcbiosInitComplete(PPDMDEVINS pDevIns)
498	{
499	PDEVPCBIOS pThis = PDMINS_2_DATA(pDevIns, PDEVPCBIOS);
500	uint32_t u32;
501	unsigned i;
502	PUVM pUVM = PDMDevHlpGetUVM(pDevIns); AssertRelease(pUVM);
503	PPDMIBLOCKBIOS apHDs[4] = {0};
504	PPDMIBLOCKBIOS apFDs[2] = {0};
505	LogFlow(("pcbiosInitComplete:\n"));
506
507	/*
508	* Memory sizes.
509	*/
510	/* base memory. */
511	u32 = pThis->cbRam > 640 ? 640 : (uint32_t)pThis->cbRam / _1K; /* <-- this test is wrong, but it doesn't matter since we never assign less than 1MB */
512	pcbiosCmosWrite(pDevIns, 0x15, u32 & 0xff); /* 15h - Base Memory in K, Low Byte */
513	pcbiosCmosWrite(pDevIns, 0x16, u32 >> 8); /* 16h - Base Memory in K, High Byte */
514
515	/* Extended memory, up to 65MB */
516	u32 = pThis->cbRam >= 65 * _1M ? 0xffff : ((uint32_t)pThis->cbRam - _1M) / _1K;
517	pcbiosCmosWrite(pDevIns, 0x17, u32 & 0xff); /* 17h - Extended Memory in K, Low Byte */
518	pcbiosCmosWrite(pDevIns, 0x18, u32 >> 8); /* 18h - Extended Memory in K, High Byte */
519	pcbiosCmosWrite(pDevIns, 0x30, u32 & 0xff); /* 30h - Extended Memory in K, Low Byte */
520	pcbiosCmosWrite(pDevIns, 0x31, u32 >> 8); /* 31h - Extended Memory in K, High Byte */
521
522	/* Bochs BIOS specific? Anyway, it's the amount of memory above 16MB
523	and below 4GB (as it can only hold 4GB+16M). We have to chop off the
524	top 2MB or it conflict with what the ACPI tables return. (Should these
525	be adjusted, we still have to chop it at 0xfffc0000 or it'll conflict
526	with the high BIOS mapping.) */
527	uint64_t const offRamHole = _4G - pThis->cbRamHole;
528	if (pThis->cbRam > 16 * _1M)
529	u32 = (uint32_t)( (RT_MIN(RT_MIN(pThis->cbRam, offRamHole), UINT32_C(0xffe00000)) - 16U * _1M) / _64K );
530	else
531	u32 = 0;
532	pcbiosCmosWrite(pDevIns, 0x34, u32 & 0xff);
533	pcbiosCmosWrite(pDevIns, 0x35, u32 >> 8);
534
535	/* Bochs/VBox BIOS specific way of specifying memory above 4GB in 64KB units.
536	Bochs got these in a different location which we've already used for SATA,
537	it also lacks the last two. */
538	uint64_t c64KBAbove4GB;
539	if (pThis->cbRam <= offRamHole)
540	c64KBAbove4GB = 0;
541	else
542	{
543	c64KBAbove4GB = (pThis->cbRam - offRamHole) / _64K;
544	/* Make sure it doesn't hit the limits of the current BIOS code. */
545	AssertLogRelMsgReturn((c64KBAbove4GB >> (3 * 8)) < 255, ("%#RX64\n", c64KBAbove4GB), VERR_OUT_OF_RANGE);
546	}
547	pcbiosCmosWrite(pDevIns, 0x61, c64KBAbove4GB & 0xff);
548	pcbiosCmosWrite(pDevIns, 0x62, (c64KBAbove4GB >> 8) & 0xff);
549	pcbiosCmosWrite(pDevIns, 0x63, (c64KBAbove4GB >> 16) & 0xff);
550	pcbiosCmosWrite(pDevIns, 0x64, (c64KBAbove4GB >> 24) & 0xff);
551	pcbiosCmosWrite(pDevIns, 0x65, (c64KBAbove4GB >> 32) & 0xff);
552
553	/*
554	* Number of CPUs.
555	*/
556	pcbiosCmosWrite(pDevIns, 0x60, pThis->cCpus & 0xff);
557
558	/*
559	* Bochs BIOS specifics - boot device.
560	* We do both new and old (ami-style) settings.
561	* See rombios.c line ~7215 (int19_function).
562	*/
563
564	uint8_t reg3d = getBiosBootCode(pThis, 0) \| (getBiosBootCode(pThis, 1) << 4);
565	uint8_t reg38 = /* pcbiosCmosRead(pDevIns, 0x38) \| */ getBiosBootCode(pThis, 2) << 4;
566	/* This is an extension. Bochs BIOS normally supports only 3 boot devices. */
567	uint8_t reg3c = getBiosBootCode(pThis, 3) \| (pThis->uBootDelay << 4);
568	pcbiosCmosWrite(pDevIns, 0x3d, reg3d);
569	pcbiosCmosWrite(pDevIns, 0x38, reg38);
570	pcbiosCmosWrite(pDevIns, 0x3c, reg3c);
571
572	/*
573	* PXE debug option.
574	*/
575	pcbiosCmosWrite(pDevIns, 0x3f, pThis->u8PXEDebug);
576
577	/*
578	* Network boot device list.
579	*/
580	for (i = 0; i < NET_BOOT_DEVS; ++i)
581	{
582	pcbiosCmosWrite(pDevIns, 0x82 + i * 2, pThis->au16NetBootDev[i] & 0xff);
583	pcbiosCmosWrite(pDevIns, 0x83 + i * 2, pThis->au16NetBootDev[i] >> 8);
584	}
585
586	/*
587	* Floppy drive type.
588	*/
589	for (i = 0; i < RT_ELEMENTS(apFDs); i++)
590	{
591	PPDMIBASE pBase;
592	int rc = PDMR3QueryLun(pUVM, pThis->pszFDDevice, 0, i, &pBase);
593	if (RT_SUCCESS(rc))
594	apFDs[i] = PDMIBASE_QUERY_INTERFACE(pBase, PDMIBLOCKBIOS);
595	}
596	u32 = 0;
597	if (apFDs[0])
598	switch (apFDs[0]->pfnGetType(apFDs[0]))
599	{
600	case PDMBLOCKTYPE_FLOPPY_360: u32 \|= 1 << 4; break;
601	case PDMBLOCKTYPE_FLOPPY_1_20: u32 \|= 2 << 4; break;
602	case PDMBLOCKTYPE_FLOPPY_720: u32 \|= 3 << 4; break;
603	case PDMBLOCKTYPE_FLOPPY_1_44: u32 \|= 4 << 4; break;
604	case PDMBLOCKTYPE_FLOPPY_2_88: u32 \|= 5 << 4; break;
605	default: AssertFailed(); break;
606	}
607	if (apFDs[1])
608	switch (apFDs[1]->pfnGetType(apFDs[1]))
609	{
610	case PDMBLOCKTYPE_FLOPPY_360: u32 \|= 1; break;
611	case PDMBLOCKTYPE_FLOPPY_1_20: u32 \|= 2; break;
612	case PDMBLOCKTYPE_FLOPPY_720: u32 \|= 3; break;
613	case PDMBLOCKTYPE_FLOPPY_1_44: u32 \|= 4; break;
614	case PDMBLOCKTYPE_FLOPPY_2_88: u32 \|= 5; break;
615	default: AssertFailed(); break;
616	}
617	pcbiosCmosWrite(pDevIns, 0x10, u32); /* 10h - Floppy Drive Type */
618
619	/*
620	* Equipment byte.
621	*/
622	u32 = !!apFDs[0] + !!apFDs[1];
623	switch (u32)
624	{
625	case 1: u32 = 0x01; break; /* floppy installed, 2 drives. */
626	default:u32 = 0; break; /* floppy not installed. */
627	}
628	u32 \|= RT_BIT(1); /* math coprocessor installed */
629	u32 \|= RT_BIT(2); /* keyboard enabled (or mouse?) */
630	u32 \|= RT_BIT(3); /* display enabled (monitory type is 0, i.e. vga) */
631	pcbiosCmosWrite(pDevIns, 0x14, u32); /* 14h - Equipment Byte */
632
633	/*
634	* Harddisks.
635	*/
636	for (i = 0; i < RT_ELEMENTS(apHDs); i++)
637	{
638	PPDMIBASE pBase;
639	int rc = PDMR3QueryLun(pUVM, pThis->pszHDDevice, 0, i, &pBase);
640	if (RT_SUCCESS(rc))
641	apHDs[i] = PDMIBASE_QUERY_INTERFACE(pBase, PDMIBLOCKBIOS);
642	if ( apHDs[i]
643	&& ( apHDs[i]->pfnGetType(apHDs[i]) != PDMBLOCKTYPE_HARD_DISK
644	\|\| !apHDs[i]->pfnIsVisible(apHDs[i])))
645	apHDs[i] = NULL;
646	if (apHDs[i])
647	{
648	PDMMEDIAGEOMETRY LCHSGeometry;
649	int rc2 = setLogicalDiskGeometry(pBase, apHDs[i], &LCHSGeometry);
650	AssertRC(rc2);
651
652	if (i < 4)
653	{
654	/* Award BIOS extended drive types for first to fourth disk.
655	* Used by the BIOS for setting the logical geometry. */
656	int offType, offInfo;
657	switch (i)
658	{
659	case 0:
660	offType = 0x19;
661	offInfo = 0x1e;
662	break;
663	case 1:
664	offType = 0x1a;
665	offInfo = 0x26;
666	break;
667	case 2:
668	offType = 0x00;
669	offInfo = 0x67;
670	break;
671	case 3:
672	default:
673	offType = 0x00;
674	offInfo = 0x70;
675	break;
676	}
677	pcbiosCmosInitHardDisk(pDevIns, offType, offInfo,
678	&LCHSGeometry);
679	}
680	LogRel(("DevPcBios: ATA LUN#%d LCHS=%u/%u/%u\n", i, LCHSGeometry.cCylinders, LCHSGeometry.cHeads, LCHSGeometry.cSectors));
681	}
682	}
683
684	/* 0Fh means extended and points to 19h, 1Ah */
685	u32 = (apHDs[0] ? 0xf0 : 0) \| (apHDs[1] ? 0x0f : 0);
686	pcbiosCmosWrite(pDevIns, 0x12, u32);
687
688	/*
689	* Sata Harddisks.
690	*/
691	if (pThis->pszSataDevice)
692	{
693	/* Clear pointers to IDE controller. */
694	for (i = 0; i < RT_ELEMENTS(apHDs); i++)
695	apHDs[i] = NULL;
696
697	for (i = 0; i < RT_ELEMENTS(apHDs); i++)
698	{
699	PPDMIBASE pBase;
700	int rc = PDMR3QueryLun(pUVM, pThis->pszSataDevice, 0, pThis->iSataHDLUN[i], &pBase);
701	if (RT_SUCCESS(rc))
702	apHDs[i] = PDMIBASE_QUERY_INTERFACE(pBase, PDMIBLOCKBIOS);
703	if ( apHDs[i]
704	&& ( apHDs[i]->pfnGetType(apHDs[i]) != PDMBLOCKTYPE_HARD_DISK
705	\|\| !apHDs[i]->pfnIsVisible(apHDs[i])))
706	apHDs[i] = NULL;
707	if (apHDs[i])
708	{
709	PDMMEDIAGEOMETRY LCHSGeometry;
710	rc = setLogicalDiskGeometry(pBase, apHDs[i], &LCHSGeometry);
711	AssertRC(rc);
712
713	if (i < 4)
714	{
715	/* Award BIOS extended drive types for first to fourth disk.
716	* Used by the BIOS for setting the logical geometry. */
717	int offInfo;
718	switch (i)
719	{
720	case 0:
721	offInfo = 0x40;
722	break;
723	case 1:
724	offInfo = 0x48;
725	break;
726	case 2:
727	offInfo = 0x50;
728	break;
729	case 3:
730	default:
731	offInfo = 0x58;
732	break;
733	}
734	pcbiosCmosInitHardDisk(pDevIns, 0x00, offInfo,
735	&LCHSGeometry);
736	}
737	LogRel(("DevPcBios: SATA LUN#%d LCHS=%u/%u/%u\n", i, LCHSGeometry.cCylinders, LCHSGeometry.cHeads, LCHSGeometry.cSectors));
738	}
739	}
740	}
741
742	/* Calculate and store AT-style CMOS checksum. */
743	uint16_t cksum = 0;
744	for (i = 0x10; i < 0x2e; ++i)
745	cksum += pcbiosCmosRead(pDevIns, i);
746	pcbiosCmosWrite(pDevIns, 0x2e, cksum >> 8);
747	pcbiosCmosWrite(pDevIns, 0x2f, cksum & 0xff);
748
749	LogFlow(("%s: returns VINF_SUCCESS\n", __FUNCTION__));
750	return VINF_SUCCESS;
751	}
752
753
754	/**
755	* @interface_method_impl{PDMDEVREG,pfnMemSetup}
756	*/
757	static DECLCALLBACK(void) pcbiosMemSetup(PPDMDEVINS pDevIns, PDMDEVMEMSETUPCTX enmCtx)
758	{
759	PDEVPCBIOS pThis = PDMINS_2_DATA(pDevIns, PDEVPCBIOS);
760	LogFlow(("pcbiosMemSetup:\n"));
761
762	if (pThis->u8IOAPIC)
763	FwCommonPlantMpsFloatPtr(pDevIns);
764
765	/*
766	* Re-shadow the LAN ROM image and make it RAM/RAM.
767	*
768	* This is normally done by the BIOS code, but since we're currently lacking
769	* the chipset support for this we do it here (and in the constructor).
770	*/
771	uint32_t cPages = RT_ALIGN_64(pThis->cbLanBoot, PAGE_SIZE) >> PAGE_SHIFT;
772	RTGCPHYS GCPhys = VBOX_LANBOOT_SEG << 4;
773	while (cPages > 0)
774	{
775	uint8_t abPage[PAGE_SIZE];
776	int rc;
777
778	/* Read the (original) ROM page and write it back to the RAM page. */
779	rc = PDMDevHlpROMProtectShadow(pDevIns, GCPhys, PAGE_SIZE, PGMROMPROT_READ_ROM_WRITE_RAM);
780	AssertLogRelRC(rc);
781
782	rc = PDMDevHlpPhysRead(pDevIns, GCPhys, abPage, PAGE_SIZE);
783	AssertLogRelRC(rc);
784	if (RT_FAILURE(rc))
785	memset(abPage, 0xcc, sizeof(abPage));
786
787	rc = PDMDevHlpPhysWrite(pDevIns, GCPhys, abPage, PAGE_SIZE);
788	AssertLogRelRC(rc);
789
790	/* Switch to the RAM/RAM mode. */
791	rc = PDMDevHlpROMProtectShadow(pDevIns, GCPhys, PAGE_SIZE, PGMROMPROT_READ_RAM_WRITE_RAM);
792	AssertLogRelRC(rc);
793
794	/* Advance */
795	GCPhys += PAGE_SIZE;
796	cPages--;
797	}
798	}
799
800
801	/**
802	* @interface_method_impl{PDMDEVREG,pfnDestruct}
803	*/
804	static DECLCALLBACK(int) pcbiosDestruct(PPDMDEVINS pDevIns)
805	{
806	PDEVPCBIOS pThis = PDMINS_2_DATA(pDevIns, PDEVPCBIOS);
807	LogFlow(("pcbiosDestruct:\n"));
808	PDMDEV_CHECK_VERSIONS_RETURN_QUIET(pDevIns);
809
810	/*
811	* Free MM heap pointers.
812	*/
813	if (pThis->pu8PcBios)
814	{
815	MMR3HeapFree(pThis->pu8PcBios);
816	pThis->pu8PcBios = NULL;
817	}
818
819	if (pThis->pszPcBiosFile)
820	{
821	MMR3HeapFree(pThis->pszPcBiosFile);
822	pThis->pszPcBiosFile = NULL;
823	}
824
825	if (pThis->pu8LanBoot)
826	{
827	MMR3HeapFree(pThis->pu8LanBoot);
828	pThis->pu8LanBoot = NULL;
829	}
830
831	if (pThis->pszLanBootFile)
832	{
833	MMR3HeapFree(pThis->pszLanBootFile);
834	pThis->pszLanBootFile = NULL;
835	}
836
837	if (pThis->pszHDDevice)
838	{
839	MMR3HeapFree(pThis->pszHDDevice);
840	pThis->pszHDDevice = NULL;
841	}
842
843	if (pThis->pszFDDevice)
844	{
845	MMR3HeapFree(pThis->pszFDDevice);
846	pThis->pszFDDevice = NULL;
847	}
848
849	if (pThis->pszSataDevice)
850	{
851	MMR3HeapFree(pThis->pszSataDevice);
852	pThis->pszSataDevice = NULL;
853	}
854
855	return VINF_SUCCESS;
856	}
857
858
859	/**
860	* Convert config value to DEVPCBIOSBOOT.
861	*
862	* @returns VBox status code.
863	* @param pCfg Configuration handle.
864	* @param pszParam The name of the value to read.
865	* @param penmBoot Where to store the boot method.
866	*/
867	static int pcbiosBootFromCfg(PPDMDEVINS pDevIns, PCFGMNODE pCfg, const char pszParam, DEVPCBIOSBOOT penmBoot)
868	{
869	char *psz;
870	int rc = CFGMR3QueryStringAlloc(pCfg, pszParam, &psz);
871	if (RT_FAILURE(rc))
872	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
873	N_("Configuration error: Querying \"%s\" as a string failed"),
874	pszParam);
875	if (!strcmp(psz, "DVD") \|\| !strcmp(psz, "CDROM"))
876	*penmBoot = DEVPCBIOSBOOT_DVD;
877	else if (!strcmp(psz, "IDE"))
878	*penmBoot = DEVPCBIOSBOOT_HD;
879	else if (!strcmp(psz, "FLOPPY"))
880	*penmBoot = DEVPCBIOSBOOT_FLOPPY;
881	else if (!strcmp(psz, "LAN"))
882	*penmBoot = DEVPCBIOSBOOT_LAN;
883	else if (!strcmp(psz, "NONE"))
884	*penmBoot = DEVPCBIOSBOOT_NONE;
885	else
886	{
887	PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
888	N_("Configuration error: The \"%s\" value \"%s\" is unknown"),
889	pszParam, psz);
890	rc = VERR_INTERNAL_ERROR;
891	}
892	MMR3HeapFree(psz);
893	return rc;
894	}
895
896	/**
897	* @interface_method_impl{PDMDEVREG,pfnConstruct}
898	*/
899	static DECLCALLBACK(int) pcbiosConstruct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfg)
900	{
901	PDEVPCBIOS pThis = PDMINS_2_DATA(pDevIns, PDEVPCBIOS);
902	int rc;
903	int cb;
904
905	Assert(iInstance == 0);
906	PDMDEV_CHECK_VERSIONS_RETURN(pDevIns);
907
908	/*
909	* Validate configuration.
910	*/
911	if (!CFGMR3AreValuesValid(pCfg,
912	"BootDevice0\0"
913	"BootDevice1\0"
914	"BootDevice2\0"
915	"BootDevice3\0"
916	"RamSize\0"
917	"RamHoleSize\0"
918	"HardDiskDevice\0"
919	"SataHardDiskDevice\0"
920	"SataLUN1\0"
921	"SataLUN2\0"
922	"SataLUN3\0"
923	"SataLUN4\0"
924	"FloppyDevice\0"
925	"DelayBoot\0"
926	"BiosRom\0"
927	"LanBootRom\0"
928	"PXEDebug\0"
929	"UUID\0"
930	"IOAPIC\0"
931	"NumCPUs\0"
932	"McfgBase\0"
933	"McfgLength\0"
934	"DmiBIOSFirmwareMajor\0"
935	"DmiBIOSFirmwareMinor\0"
936	"DmiBIOSReleaseDate\0"
937	"DmiBIOSReleaseMajor\0"
938	"DmiBIOSReleaseMinor\0"
939	"DmiBIOSVendor\0"
940	"DmiBIOSVersion\0"
941	"DmiSystemFamily\0"
942	"DmiSystemProduct\0"
943	"DmiSystemSerial\0"
944	"DmiSystemSKU\0"
945	"DmiSystemUuid\0"
946	"DmiSystemVendor\0"
947	"DmiSystemVersion\0"
948	"DmiBoardAssetTag\0"
949	"DmiBoardBoardType\0"
950	"DmiBoardLocInChass\0"
951	"DmiBoardProduct\0"
952	"DmiBoardSerial\0"
953	"DmiBoardVendor\0"
954	"DmiBoardVersion\0"
955	"DmiChassisAssetTag\0"
956	"DmiChassisSerial\0"
957	"DmiChassisType\0"
958	"DmiChassisVendor\0"
959	"DmiChassisVersion\0"
960	"DmiProcManufacturer\0"
961	"DmiProcVersion\0"
962	"DmiOEMVBoxVer\0"
963	"DmiOEMVBoxRev\0"
964	"DmiUseHostInfo\0"
965	"DmiExposeMemoryTable\0"
966	"DmiExposeProcInf\0"
967	))
968	return PDMDEV_SET_ERROR(pDevIns, VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES,
969	N_("Invalid configuration for device pcbios device"));
970
971	/*
972	* Init the data.
973	*/
974	rc = CFGMR3QueryU64(pCfg, "RamSize", &pThis->cbRam);
975	if (RT_FAILURE(rc))
976	return PDMDEV_SET_ERROR(pDevIns, rc,
977	N_("Configuration error: Querying \"RamSize\" as integer failed"));
978
979	rc = CFGMR3QueryU32Def(pCfg, "RamHoleSize", &pThis->cbRamHole, MM_RAM_HOLE_SIZE_DEFAULT);
980	if (RT_FAILURE(rc))
981	return PDMDEV_SET_ERROR(pDevIns, rc,
982	N_("Configuration error: Querying \"RamHoleSize\" as integer failed"));
983
984	rc = CFGMR3QueryU16Def(pCfg, "NumCPUs", &pThis->cCpus, 1);
985	if (RT_FAILURE(rc))
986	return PDMDEV_SET_ERROR(pDevIns, rc,
987	N_("Configuration error: Querying \"NumCPUs\" as integer failed"));
988
989	rc = CFGMR3QueryU32Def(pCfg, "McfgBase", &pThis->u32McfgBase, 0);
990	if (RT_FAILURE(rc))
991	return PDMDEV_SET_ERROR(pDevIns, rc,
992	N_("Configuration error: Querying \"\" as integer failed"));
993	rc = CFGMR3QueryU32Def(pCfg, "McfgLength", &pThis->cbMcfgLength, 0);
994	if (RT_FAILURE(rc))
995	return PDMDEV_SET_ERROR(pDevIns, rc,
996	N_("Configuration error: Querying \"McfgLength\" as integer failed"));
997
998
999	LogRel(("[SMP] BIOS with %u CPUs\n", pThis->cCpus));
1000
1001	rc = CFGMR3QueryU8Def(pCfg, "IOAPIC", &pThis->u8IOAPIC, 1);
1002	if (RT_FAILURE (rc))
1003	return PDMDEV_SET_ERROR(pDevIns, rc,
1004	N_("Configuration error: Failed to read \"IOAPIC\""));
1005
1006	static const char * const s_apszBootDevices[] = { "BootDevice0", "BootDevice1", "BootDevice2", "BootDevice3" };
1007	Assert(RT_ELEMENTS(s_apszBootDevices) == RT_ELEMENTS(pThis->aenmBootDevice));
1008	for (unsigned i = 0; i < RT_ELEMENTS(pThis->aenmBootDevice); i++)
1009	{
1010	rc = pcbiosBootFromCfg(pDevIns, pCfg, s_apszBootDevices[i], &pThis->aenmBootDevice[i]);
1011	if (RT_FAILURE(rc))
1012	return rc;
1013	}
1014
1015	rc = CFGMR3QueryStringAlloc(pCfg, "HardDiskDevice", &pThis->pszHDDevice);
1016	if (RT_FAILURE(rc))
1017	return PDMDEV_SET_ERROR(pDevIns, rc,
1018	N_("Configuration error: Querying \"HardDiskDevice\" as a string failed"));
1019
1020	rc = CFGMR3QueryStringAlloc(pCfg, "FloppyDevice", &pThis->pszFDDevice);
1021	if (RT_FAILURE(rc))
1022	return PDMDEV_SET_ERROR(pDevIns, rc,
1023	N_("Configuration error: Querying \"FloppyDevice\" as a string failed"));
1024
1025	rc = CFGMR3QueryStringAlloc(pCfg, "SataHardDiskDevice", &pThis->pszSataDevice);
1026	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1027	pThis->pszSataDevice = NULL;
1028	else if (RT_FAILURE(rc))
1029	return PDMDEV_SET_ERROR(pDevIns, rc,
1030	N_("Configuration error: Querying \"SataHardDiskDevice\" as a string failed"));
1031
1032	if (pThis->pszSataDevice)
1033	{
1034	static const char * const s_apszSataDisks[] =
1035	{ "SataLUN1", "SataLUN2", "SataLUN3", "SataLUN4" };
1036	Assert(RT_ELEMENTS(s_apszSataDisks) == RT_ELEMENTS(pThis->iSataHDLUN));
1037	for (unsigned i = 0; i < RT_ELEMENTS(pThis->iSataHDLUN); i++)
1038	{
1039	rc = CFGMR3QueryU32(pCfg, s_apszSataDisks[i], &pThis->iSataHDLUN[i]);
1040	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1041	pThis->iSataHDLUN[i] = i;
1042	else if (RT_FAILURE(rc))
1043	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
1044	N_("Configuration error: Querying \"%s\" as a string failed"), s_apszSataDisks);
1045	}
1046	}
1047	/*
1048	* Register I/O Ports and PC BIOS.
1049	*/
1050	rc = PDMDevHlpIOPortRegister(pDevIns, 0x400, 4, NULL, pcbiosIOPortWrite, pcbiosIOPortRead,
1051	NULL, NULL, "Bochs PC BIOS - Panic & Debug");
1052	if (RT_FAILURE(rc))
1053	return rc;
1054	rc = PDMDevHlpIOPortRegister(pDevIns, 0x8900, 1, NULL, pcbiosIOPortWrite, pcbiosIOPortRead,
1055	NULL, NULL, "Bochs PC BIOS - Shutdown");
1056	if (RT_FAILURE(rc))
1057	return rc;
1058
1059	/*
1060	* Read the PXE debug logging option.
1061	*/
1062	rc = CFGMR3QueryU8Def(pCfg, "PXEDebug", &pThis->u8PXEDebug, false);
1063	if (RT_FAILURE(rc))
1064	return PDMDEV_SET_ERROR(pDevIns, rc,
1065	N_("Configuration error: Querying \"PXEDebug\" as integer failed"));
1066
1067	/* Clear the net boot device list. All bits set invokes old behavior,
1068	* as if no second CMOS bank was present.
1069	*/
1070	memset(&pThis->au16NetBootDev, 0xff, sizeof(pThis->au16NetBootDev));
1071
1072	/*
1073	* Determine the network boot order.
1074	*/
1075	PCFGMNODE pCfgNetBoot = CFGMR3GetChild(pCfg, "NetBoot");
1076	if (pCfgNetBoot == NULL)
1077	{
1078	/* Do nothing. */
1079	rc = VINF_SUCCESS;
1080	}
1081	else
1082	{
1083	PCFGMNODE pCfgNetBootDevice;
1084	uint8_t u8PciBus;
1085	uint8_t u8PciDev;
1086	uint8_t u8PciFn;
1087	uint16_t u16BusDevFn;
1088	char szIndex[] = "?";
1089
1090	Assert(pCfgNetBoot);
1091	for (unsigned i = 0; i < NET_BOOT_DEVS; ++i)
1092	{
1093	szIndex[0] = '0' + i;
1094	pCfgNetBootDevice = CFGMR3GetChild(pCfgNetBoot, szIndex);
1095
1096	rc = CFGMR3QueryU8(pCfgNetBootDevice, "PCIBusNo", &u8PciBus);
1097	if (rc == VERR_CFGM_VALUE_NOT_FOUND \|\| rc == VERR_CFGM_NO_PARENT)
1098	{
1099	/* Do nothing and stop iterating. */
1100	rc = VINF_SUCCESS;
1101	break;
1102	}
1103	else if (RT_FAILURE(rc))
1104	return PDMDEV_SET_ERROR(pDevIns, rc,
1105	N_("Configuration error: Querying \"Netboot/x/PCIBusNo\" as integer failed"));
1106	rc = CFGMR3QueryU8(pCfgNetBootDevice, "PCIDeviceNo", &u8PciDev);
1107	if (rc == VERR_CFGM_VALUE_NOT_FOUND \|\| rc == VERR_CFGM_NO_PARENT)
1108	{
1109	/* Do nothing and stop iterating. */
1110	rc = VINF_SUCCESS;
1111	break;
1112	}
1113	else if (RT_FAILURE(rc))
1114	return PDMDEV_SET_ERROR(pDevIns, rc,
1115	N_("Configuration error: Querying \"Netboot/x/PCIDeviceNo\" as integer failed"));
1116	rc = CFGMR3QueryU8(pCfgNetBootDevice, "PCIFunctionNo", &u8PciFn);
1117	if (rc == VERR_CFGM_VALUE_NOT_FOUND \|\| rc == VERR_CFGM_NO_PARENT)
1118	{
1119	/* Do nothing and stop iterating. */
1120	rc = VINF_SUCCESS;
1121	break;
1122	}
1123	else if (RT_FAILURE(rc))
1124	return PDMDEV_SET_ERROR(pDevIns, rc,
1125	N_("Configuration error: Querying \"Netboot/x/PCIFunctionNo\" as integer failed"));
1126	u16BusDevFn = (((uint16_t)u8PciBus) << 8) \| ((u8PciDev & 0x1F) << 3) \| (u8PciFn & 0x7);
1127	pThis->au16NetBootDev[i] = u16BusDevFn;
1128	}
1129	}
1130
1131	/*
1132	* Get the system BIOS ROM file name.
1133	*/
1134	rc = CFGMR3QueryStringAlloc(pCfg, "BiosRom", &pThis->pszPcBiosFile);
1135	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1136	{
1137	pThis->pszPcBiosFile = NULL;
1138	rc = VINF_SUCCESS;
1139	}
1140	else if (RT_FAILURE(rc))
1141	return PDMDEV_SET_ERROR(pDevIns, rc,
1142	N_("Configuration error: Querying \"BiosRom\" as a string failed"));
1143	else if (!*pThis->pszPcBiosFile)
1144	{
1145	MMR3HeapFree(pThis->pszPcBiosFile);
1146	pThis->pszPcBiosFile = NULL;
1147	}
1148
1149	if (pThis->pszPcBiosFile)
1150	{
1151	/*
1152	* Load the BIOS ROM.
1153	*/
1154	RTFILE hFilePcBios;
1155	rc = RTFileOpen(&hFilePcBios, pThis->pszPcBiosFile,
1156	RTFILE_O_READ \| RTFILE_O_OPEN \| RTFILE_O_DENY_WRITE);
1157	if (RT_SUCCESS(rc))
1158	{
1159	/* Figure the size and check restrictions. */
1160	uint64_t cbPcBios;
1161	rc = RTFileGetSize(hFilePcBios, &cbPcBios);
1162	if (RT_SUCCESS(rc))
1163	{
1164	pThis->cbPcBios = (uint32_t)cbPcBios;
1165	if ( RT_ALIGN(pThis->cbPcBios, _64K) == pThis->cbPcBios
1166	&& pThis->cbPcBios == cbPcBios
1167	&& pThis->cbPcBios <= 32 * _64K
1168	&& pThis->cbPcBios >= _64K)
1169	{
1170	pThis->pu8PcBios = (uint8_t *)PDMDevHlpMMHeapAlloc(pDevIns, pThis->cbPcBios);
1171	if (pThis->pu8PcBios)
1172	{
1173	rc = RTFileRead(hFilePcBios, pThis->pu8PcBios, pThis->cbPcBios, NULL);
1174	if (RT_FAILURE(rc))
1175	rc = PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
1176	N_("Error reading the BIOS image ('%s)"), pThis->pszPcBiosFile);
1177	}
1178	else
1179	rc = PDMDevHlpVMSetError(pDevIns, VERR_NO_MEMORY, RT_SRC_POS,
1180	N_("Failed to allocate %#x bytes for loading the BIOS image"),
1181	pThis->cbPcBios);
1182	}
1183	else
1184	rc = PDMDevHlpVMSetError(pDevIns, VERR_OUT_OF_RANGE, RT_SRC_POS,
1185	N_("Invalid system BIOS file size ('%s'): %#llx (%llu)"),
1186	pThis->pszPcBiosFile, cbPcBios, cbPcBios);
1187	}
1188	else
1189	rc = PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
1190	N_("Failed to query the system BIOS file size ('%s')"),
1191	pThis->pszPcBiosFile);
1192	RTFileClose(hFilePcBios);
1193	}
1194	else
1195	rc = PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
1196	N_("Failed to open system BIOS file '%s'"), pThis->pszPcBiosFile);
1197	if (RT_FAILURE(rc))
1198	return rc;
1199
1200	LogRel(("DevPcBios: Using BIOS ROM '%s' with a size of %#x bytes\n", pThis->pszPcBiosFile, pThis->cbPcBios));
1201	}
1202	else
1203	{
1204	/*
1205	* Use the embedded BIOS ROM image.
1206	*/
1207	pThis->pu8PcBios = (uint8_t *)PDMDevHlpMMHeapAlloc(pDevIns, g_cbPcBiosBinary);
1208	if (pThis->pu8PcBios)
1209	{
1210	pThis->cbPcBios = g_cbPcBiosBinary;
1211	memcpy(pThis->pu8PcBios, g_abPcBiosBinary, pThis->cbPcBios);
1212	}
1213	else
1214	return PDMDevHlpVMSetError(pDevIns, VERR_NO_MEMORY, RT_SRC_POS,
1215	N_("Failed to allocate %#x bytes for loading the embedded BIOS image"),
1216	g_cbPcBiosBinary);
1217	}
1218	const uint8_t *pu8PcBiosBinary = pThis->pu8PcBios;
1219	uint32_t cbPcBiosBinary = pThis->cbPcBios;
1220
1221	/*
1222	* Query the machine's UUID for SMBIOS/DMI use.
1223	*/
1224	RTUUID uuid;
1225	rc = CFGMR3QueryBytes(pCfg, "UUID", &uuid, sizeof(uuid));
1226	if (RT_FAILURE(rc))
1227	return PDMDEV_SET_ERROR(pDevIns, rc,
1228	N_("Configuration error: Querying \"UUID\" failed"));
1229
1230	/* Convert the UUID to network byte order. Not entirely straightforward as parts are MSB already... */
1231	uuid.Gen.u32TimeLow = RT_H2BE_U32(uuid.Gen.u32TimeLow);
1232	uuid.Gen.u16TimeMid = RT_H2BE_U16(uuid.Gen.u16TimeMid);
1233	uuid.Gen.u16TimeHiAndVersion = RT_H2BE_U16(uuid.Gen.u16TimeHiAndVersion);
1234	uint16_t cbDmiTables = 0;
1235	uint16_t cNumDmiTables = 0;
1236	rc = FwCommonPlantDMITable(pDevIns, pThis->au8DMIPage, VBOX_DMI_TABLE_SIZE,
1237	&uuid, pCfg, pThis->cCpus, &cbDmiTables, &cNumDmiTables);
1238	if (RT_FAILURE(rc))
1239	return rc;
1240
1241	for (unsigned i = 0; i < pThis->cbPcBios; i += 16)
1242	{
1243	/* If the DMI table is located at the expected place, patch the DMI table length and the checksum. */
1244	if ( pThis->pu8PcBios[i + 0x00] == '_'
1245	&& pThis->pu8PcBios[i + 0x01] == 'D'
1246	&& pThis->pu8PcBios[i + 0x02] == 'M'
1247	&& pThis->pu8PcBios[i + 0x03] == 'I'
1248	&& pThis->pu8PcBios[i + 0x04] == '_'
1249	&& (uint16_t)&pThis->pu8PcBios[i + 0x06] == 0)
1250	{
1251	(uint16_t)&pThis->pu8PcBios[i + 0x06] = RT_H2LE_U16(cbDmiTables);
1252	(uint16_t)&pThis->pu8PcBios[i + 0x0C] = RT_H2LE_U16(cNumDmiTables);
1253	uint8_t u8Sum = 0;
1254	for (unsigned j = 0; j < pThis->cbPcBios; j++)
1255	if (j != i + 0x05)
1256	u8Sum += pThis->pu8PcBios[j];
1257	pThis->pu8PcBios[i + 0x05] = -u8Sum;
1258	break;
1259	}
1260	}
1261
1262	if (pThis->u8IOAPIC)
1263	FwCommonPlantMpsTable(pDevIns, pThis->au8DMIPage + VBOX_DMI_TABLE_SIZE,
1264	_4K - VBOX_DMI_TABLE_SIZE, pThis->cCpus);
1265
1266	rc = PDMDevHlpROMRegister(pDevIns, VBOX_DMI_TABLE_BASE, _4K, pThis->au8DMIPage, _4K,
1267	PGMPHYS_ROM_FLAGS_PERMANENT_BINARY, "DMI tables");
1268	if (RT_FAILURE(rc))
1269	return rc;
1270
1271	/*
1272	* Map the BIOS into memory.
1273	* There are two mappings:
1274	* 1. 0x000e0000 to 0x000fffff contains the last 128 kb of the bios.
1275	* The bios code might be 64 kb in size, and will then start at 0xf0000.
1276	* 2. 0xfffxxxxx to 0xffffffff contains the entire bios.
1277	*/
1278	AssertReleaseMsg(cbPcBiosBinary >= _64K, ("cbPcBiosBinary=%#x\n", cbPcBiosBinary));
1279	AssertReleaseMsg(RT_ALIGN_Z(cbPcBiosBinary, _64K) == cbPcBiosBinary,
1280	("cbPcBiosBinary=%#x\n", cbPcBiosBinary));
1281	cb = RT_MIN(cbPcBiosBinary, 128 * _1K); /* Effectively either 64 or 128K. */
1282	rc = PDMDevHlpROMRegister(pDevIns, 0x00100000 - cb, cb, &pu8PcBiosBinary[cbPcBiosBinary - cb], cb,
1283	PGMPHYS_ROM_FLAGS_PERMANENT_BINARY, "PC BIOS - 0xfffff");
1284	if (RT_FAILURE(rc))
1285	return rc;
1286	rc = PDMDevHlpROMRegister(pDevIns, (uint32_t)-(int32_t)cbPcBiosBinary, cbPcBiosBinary, pu8PcBiosBinary, cbPcBiosBinary,
1287	PGMPHYS_ROM_FLAGS_PERMANENT_BINARY, "PC BIOS - 0xffffffff");
1288	if (RT_FAILURE(rc))
1289	return rc;
1290
1291	/*
1292	* Get the LAN boot ROM file name.
1293	*/
1294	rc = CFGMR3QueryStringAlloc(pCfg, "LanBootRom", &pThis->pszLanBootFile);
1295	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1296	{
1297	pThis->pszLanBootFile = NULL;
1298	rc = VINF_SUCCESS;
1299	}
1300	else if (RT_FAILURE(rc))
1301	return PDMDEV_SET_ERROR(pDevIns, rc,
1302	N_("Configuration error: Querying \"LanBootRom\" as a string failed"));
1303	else if (!*pThis->pszLanBootFile)
1304	{
1305	MMR3HeapFree(pThis->pszLanBootFile);
1306	pThis->pszLanBootFile = NULL;
1307	}
1308
1309	uint64_t cbFileLanBoot;
1310	const uint8_t *pu8LanBootBinary = NULL;
1311	uint64_t cbLanBootBinary;
1312
1313	/*
1314	* Determine the LAN boot ROM size, open specified ROM file in the process.
1315	*/
1316	RTFILE FileLanBoot = NIL_RTFILE;
1317	if (pThis->pszLanBootFile)
1318	{
1319	rc = RTFileOpen(&FileLanBoot, pThis->pszLanBootFile,
1320	RTFILE_O_READ \| RTFILE_O_OPEN \| RTFILE_O_DENY_WRITE);
1321	if (RT_SUCCESS(rc))
1322	{
1323	rc = RTFileGetSize(FileLanBoot, &cbFileLanBoot);
1324	if (RT_SUCCESS(rc))
1325	{
1326	if (cbFileLanBoot > _64K - (VBOX_LANBOOT_SEG << 4 & 0xffff))
1327	rc = VERR_TOO_MUCH_DATA;
1328	}
1329	}
1330	if (RT_FAILURE(rc))
1331	{
1332	/*
1333	* Ignore failure and fall back to the built-in LAN boot ROM.
1334	*/
1335	LogRel(("DevPcBios: Failed to open LAN boot ROM file '%s', rc=%Rrc!\n", pThis->pszLanBootFile, rc));
1336	RTFileClose(FileLanBoot);
1337	FileLanBoot = NIL_RTFILE;
1338	MMR3HeapFree(pThis->pszLanBootFile);
1339	pThis->pszLanBootFile = NULL;
1340	}
1341	}
1342
1343	/*
1344	* Get the LAN boot ROM data.
1345	*/
1346	if (pThis->pszLanBootFile)
1347	{
1348	LogRel(("DevPcBios: Using LAN ROM '%s' with a size of %#x bytes\n", pThis->pszLanBootFile, cbFileLanBoot));
1349	/*
1350	* Allocate buffer for the LAN boot ROM data.
1351	*/
1352	pThis->pu8LanBoot = (uint8_t *)PDMDevHlpMMHeapAllocZ(pDevIns, cbFileLanBoot);
1353	if (pThis->pu8LanBoot)
1354	{
1355	rc = RTFileRead(FileLanBoot, pThis->pu8LanBoot, cbFileLanBoot, NULL);
1356	if (RT_FAILURE(rc))
1357	{
1358	AssertMsgFailed(("RTFileRead(,,%d,NULL) -> %Rrc\n", cbFileLanBoot, rc));
1359	MMR3HeapFree(pThis->pu8LanBoot);
1360	pThis->pu8LanBoot = NULL;
1361	}
1362	rc = VINF_SUCCESS;
1363	}
1364	else
1365	rc = VERR_NO_MEMORY;
1366	}
1367	else
1368	pThis->pu8LanBoot = NULL;
1369
1370	/* cleanup */
1371	if (FileLanBoot != NIL_RTFILE)
1372	RTFileClose(FileLanBoot);
1373
1374	/* If we were unable to get the data from file for whatever reason, fall
1375	* back to the built-in LAN boot ROM image.
1376	*/
1377	if (pThis->pu8LanBoot == NULL)
1378	{
1379	#ifdef VBOX_WITH_PXE_ROM
1380	pu8LanBootBinary = g_abNetBiosBinary;
1381	cbLanBootBinary = g_cbNetBiosBinary;
1382	#endif
1383	}
1384	else
1385	{
1386	pu8LanBootBinary = pThis->pu8LanBoot;
1387	cbLanBootBinary = cbFileLanBoot;
1388	}
1389
1390	/*
1391	* Map the Network Boot ROM into memory.
1392	* Currently there is a fixed mapping: 0x000e2000 to 0x000effff contains
1393	* the (up to) 56 kb ROM image. The mapping size is fixed to trouble with
1394	* the saved state (in PGM).
1395	*/
1396	if (pu8LanBootBinary)
1397	{
1398	pThis->cbLanBoot = cbLanBootBinary;
1399
1400	rc = PDMDevHlpROMRegister(pDevIns, VBOX_LANBOOT_SEG << 4,
1401	RT_MAX(cbLanBootBinary, _64K - (VBOX_LANBOOT_SEG << 4 & 0xffff)),
1402	pu8LanBootBinary, cbLanBootBinary,
1403	PGMPHYS_ROM_FLAGS_SHADOWED, "Net Boot ROM");
1404	AssertRCReturn(rc, rc);
1405	}
1406
1407	rc = CFGMR3QueryU8Def(pCfg, "DelayBoot", &pThis->uBootDelay, 0);
1408	if (RT_FAILURE(rc))
1409	return PDMDEV_SET_ERROR(pDevIns, rc,
1410	N_("Configuration error: Querying \"DelayBoot\" as integer failed"));
1411	if (pThis->uBootDelay > 15)
1412	pThis->uBootDelay = 15;
1413
1414	return VINF_SUCCESS;
1415	}
1416
1417
1418	/**
1419	* The device registration structure.
1420	*/
1421	const PDMDEVREG g_DevicePcBios =
1422	{
1423	/* u32Version */
1424	PDM_DEVREG_VERSION,
1425	/* szName */
1426	"pcbios",
1427	/* szRCMod */
1428	"",
1429	/* szR0Mod */
1430	"",
1431	/* pszDescription */
1432	"PC BIOS Device",
1433	/* fFlags */
1434	PDM_DEVREG_FLAGS_HOST_BITS_DEFAULT \| PDM_DEVREG_FLAGS_GUEST_BITS_32_64,
1435	/* fClass */
1436	PDM_DEVREG_CLASS_ARCH_BIOS,
1437	/* cMaxInstances */
1438	1,
1439	/* cbInstance */
1440	sizeof(DEVPCBIOS),
1441	/* pfnConstruct */
1442	pcbiosConstruct,
1443	/* pfnDestruct */
1444	pcbiosDestruct,
1445	/* pfnRelocate */
1446	NULL,
1447	/* pfnMemSetup */
1448	pcbiosMemSetup,
1449	/* pfnPowerOn */
1450	NULL,
1451	/* pfnReset */
1452	NULL,
1453	/* pfnSuspend */
1454	NULL,
1455	/* pfnResume */
1456	NULL,
1457	/* pfnAttach */
1458	NULL,
1459	/* pfnDetach */
1460	NULL,
1461	/* pfnQueryInterface. */
1462	NULL,
1463	/* pfnInitComplete. */
1464	pcbiosInitComplete,
1465	/* pfnPowerOff */
1466	NULL,
1467	/* pfnSoftReset */
1468	NULL,
1469	/* u32VersionEnd */
1470	PDM_DEVREG_VERSION
1471	};
1472

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source: vbox/trunk/src/VBox/Devices/PC/DevPcBios.cpp@ 46757

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