DevPcBios.cpp@ 11633

Last change on this file since 11633 was 11428, checked in by vboxsync, 16 years ago
BIOS: handle empty DMI strings
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1	/* $Id: DevPcBios.cpp 11428 2008-08-14 15:27:05Z vboxsync $ */
2	/** @file
3	* PC BIOS Device.
4	*/
5
6	/*
7	* Copyright (C) 2006-2008 Sun Microsystems, Inc.
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	* Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa
18	* Clara, CA 95054 USA or visit http://www.sun.com if you need
19	* additional information or have any questions.
20	*/
21
22	/*******************************************************************************
23	* Header Files *
24	*******************************************************************************/
25	#define LOG_GROUP LOG_GROUP_DEV_PC_BIOS
26	#include <VBox/pdmdev.h>
27	#include <VBox/mm.h>
28
29	#include <VBox/log.h>
30	#include <iprt/assert.h>
31	#include <iprt/alloc.h>
32	#include <iprt/file.h>
33	#include <iprt/string.h>
34	#include <iprt/uuid.h>
35	#include <VBox/err.h>
36	#include <VBox/param.h>
37
38	#include "../Builtins.h"
39	#include "../Builtins2.h"
40	#include "DevPcBios.h"
41
42
43	/** @page pg_devbios_cmos_assign CMOS Assignments (BIOS)
44	*
45	* The BIOS uses a CMOS to store configuration data.
46	* It is currently used as follows:
47	*
48	* Base memory:
49	* 0x15
50	* 0x16
51	* Extended memory:
52	* 0x17
53	* 0x18
54	* 0x30
55	* 0x31
56	* Amount of memory above 16M:
57	* 0x34
58	* 0x35
59	* Boot device (BOCHS bios specific):
60	* 0x3d
61	* 0x38
62	* 0x3c
63	* PXE debug:
64	* 0x3f
65	* Floppy drive type:
66	* 0x10
67	* Equipment byte:
68	* 0x14
69	* First HDD:
70	* 0x19
71	* 0x1e - 0x25
72	* Second HDD:
73	* 0x1a
74	* 0x26 - 0x2d
75	* Third HDD:
76	* 0x67 - 0x6e
77	* Fourth HDD:
78	* 0x70 - 0x77
79	* Extended:
80	* 0x12
81	* First Sata HDD:
82	* 0x40 - 0x47
83	* Second Sata HDD:
84	* 0x48 - 0x4f
85	* Third Sata HDD:
86	* 0x50 - 0x57
87	* Fourth Sata HDD:
88	* 0x58 - 0x5f
89	*/
90
91
92	/*******************************************************************************
93	* Structures and Typedefs *
94	*******************************************************************************/
95
96	/**
97	* The boot device.
98	*/
99	typedef enum DEVPCBIOSBOOT
100	{
101	DEVPCBIOSBOOT_NONE,
102	DEVPCBIOSBOOT_FLOPPY,
103	DEVPCBIOSBOOT_HD,
104	DEVPCBIOSBOOT_DVD,
105	DEVPCBIOSBOOT_LAN
106	} DEVPCBIOSBOOT;
107
108	/**
109	* PC Bios instance data structure.
110	*/
111	typedef struct DEVPCBIOS
112	{
113	/** Pointer back to the device instance. */
114	PPDMDEVINS pDevIns;
115
116	/** Boot devices (ordered). */
117	DEVPCBIOSBOOT aenmBootDevice[4];
118	/** Ram Size (in bytes). */
119	uint64_t cbRam;
120	/** Bochs shutdown index. */
121	uint32_t iShutdown;
122	/** Floppy device. */
123	char *pszFDDevice;
124	/** Harddisk device. */
125	char *pszHDDevice;
126	/** Sata harddisk device. */
127	char *pszSataDevice;
128	/** LUN of the four harddisks which are emulated as IDE. */
129	uint32_t iSataHDLUN[4];
130	/** Bios message buffer. */
131	char szMsg[256];
132	/** Bios message buffer index. */
133	uint32_t iMsg;
134	/** The system BIOS ROM data. */
135	uint8_t *pu8PcBios;
136	/** The size of the system BIOS ROM. */
137	uint64_t cbPcBios;
138	/** The name of the BIOS ROM file. */
139	char *pszPcBiosFile;
140	/** The LAN boot ROM data. */
141	uint8_t *pu8LanBoot;
142	/** The name of the LAN boot ROM file. */
143	char *pszLanBootFile;
144	/** The DMI tables. */
145	uint8_t au8DMIPage[0x1000];
146	/** The boot countdown (in seconds). */
147	uint8_t uBootDelay;
148	/** I/O-APIC enabled? */
149	uint8_t u8IOAPIC;
150	/** PXE debug logging enabled? */
151	uint8_t u8PXEDebug;
152	} DEVPCBIOS, *PDEVPCBIOS;
153
154	#pragma pack(1)
155
156	/** DMI header */
157	typedef struct DMIHDR
158	{
159	uint8_t u8Type;
160	uint8_t u8Length;
161	uint16_t u16Handle;
162	} *PDMIHDR;
163	AssertCompileSize(DMIHDR, 4);
164
165	/** DMI BIOS information */
166	typedef struct DMIBIOSINF
167	{
168	DMIHDR header;
169	uint8_t u8Vendor;
170	uint8_t u8Version;
171	uint16_t u16Start;
172	uint8_t u8Release;
173	uint8_t u8ROMSize;
174	uint64_t u64Characteristics;
175	uint8_t u8CharacteristicsByte1;
176	uint8_t u8CharacteristicsByte2;
177	uint8_t u8ReleaseMajor;
178	uint8_t u8ReleaseMinor;
179	uint8_t u8FirmwareMajor;
180	uint8_t u8FirmwareMinor;
181	} *PDMIBIOSINF;
182	AssertCompileSize(DMIBIOSINF, 0x18);
183
184	/** DMI system information */
185	typedef struct DMISYSTEMINF
186	{
187	DMIHDR header;
188	uint8_t u8Manufacturer;
189	uint8_t u8ProductName;
190	uint8_t u8Version;
191	uint8_t u8SerialNumber;
192	uint8_t au8Uuid[16];
193	uint8_t u8WakeupType;
194	uint8_t u8SKUNumber;
195	uint8_t u8Family;
196	} *PDMISYSTEMINF;
197	AssertCompileSize(DMISYSTEMINF, 0x1b);
198
199	/** MPS floating pointer structure */
200	typedef struct MPSFLOATPTR
201	{
202	uint8_t au8Signature[4];
203	uint32_t u32MPSAddr;
204	uint8_t u8Length;
205	uint8_t u8SpecRev;
206	uint8_t u8Checksum;
207	uint8_t au8Feature[5];
208	} *PMPSFLOATPTR;
209	AssertCompileSize(MPSFLOATPTR, 16);
210
211	/** MPS config table header */
212	typedef struct MPSCFGTBLHEADER
213	{
214	uint8_t au8Signature[4];
215	uint16_t u16Length;
216	uint8_t u8SpecRev;
217	uint8_t u8Checksum;
218	uint8_t au8OemId[8];
219	uint8_t au8ProductId[12];
220	uint32_t u32OemTablePtr;
221	uint16_t u16OemTableSize;
222	uint16_t u16EntryCount;
223	uint32_t u32AddrLocalApic;
224	uint16_t u16ExtTableLength;
225	uint8_t u8ExtTableChecksxum;
226	uint8_t u8Reserved;
227	} *PMPSCFGTBLHEADER;
228	AssertCompileSize(MPSCFGTBLHEADER, 0x2c);
229
230	/** MPS processor entry */
231	typedef struct MPSPROCENTRY
232	{
233	uint8_t u8EntryType;
234	uint8_t u8LocalApicId;
235	uint8_t u8LocalApicVersion;
236	uint8_t u8CPUFlags;
237	uint32_t u32CPUSignature;
238	uint32_t u32CPUFeatureFlags;
239	uint32_t u32Reserved[2];
240	} *PMPSPROCENTRY;
241	AssertCompileSize(MPSPROCENTRY, 20);
242
243	/** MPS bus entry */
244	typedef struct MPSBUSENTRY
245	{
246	uint8_t u8EntryType;
247	uint8_t u8BusId;
248	uint8_t au8BusTypeStr[6];
249	} *PMPSBUSENTRY;
250	AssertCompileSize(MPSBUSENTRY, 8);
251
252	/** MPS I/O-APIC entry */
253	typedef struct MPSIOAPICENTRY
254	{
255	uint8_t u8EntryType;
256	uint8_t u8Id;
257	uint8_t u8Version;
258	uint8_t u8Flags;
259	uint32_t u32Addr;
260	} *PMPSIOAPICENTRY;
261	AssertCompileSize(MPSIOAPICENTRY, 8);
262
263	/** MPS I/O-Interrupt entry */
264	typedef struct MPSIOINTERRUPTENTRY
265	{
266	uint8_t u8EntryType;
267	uint8_t u8Type;
268	uint16_t u16Flags;
269	uint8_t u8SrcBusId;
270	uint8_t u8SrcBusIrq;
271	uint8_t u8DstIOAPICId;
272	uint8_t u8DstIOAPICInt;
273	} *PMPSIOIRQENTRY;
274	AssertCompileSize(MPSIOINTERRUPTENTRY, 8);
275
276	#pragma pack()
277
278	/* Attempt to guess the LCHS disk geometry from the MS-DOS master boot
279	* record (partition table). */
280	static int biosGuessDiskLCHS(PPDMIBLOCK pBlock, PPDMMEDIAGEOMETRY pLCHSGeometry)
281	{
282	uint8_t aMBR[512], *p;
283	int rc;
284	uint32_t iEndHead, iEndSector, cLCHSCylinders, cLCHSHeads, cLCHSSectors;
285
286	if (!pBlock)
287	return VERR_INVALID_PARAMETER;
288	rc = pBlock->pfnRead(pBlock, 0, aMBR, sizeof(aMBR));
289	if (RT_FAILURE(rc))
290	return rc;
291	/* Test MBR magic number. */
292	if (aMBR[510] != 0x55 \|\| aMBR[511] != 0xaa)
293	return VERR_INVALID_PARAMETER;
294	for (uint32_t i = 0; i < 4; i++)
295	{
296	/* Figure out the start of a partition table entry. */
297	p = &aMBR[0x1be + i * 16];
298	iEndHead = p[5];
299	iEndSector = p[6] & 63;
300	if ((p[12] \| p[13] \| p[14] \| p[15]) && iEndSector & iEndHead)
301	{
302	/* Assumption: partition terminates on a cylinder boundary. */
303	cLCHSHeads = iEndHead + 1;
304	cLCHSSectors = iEndSector;
305	cLCHSCylinders = RT_MIN(1024, pBlock->pfnGetSize(pBlock) / (512 * cLCHSHeads * cLCHSSectors));
306	if (cLCHSCylinders >= 1)
307	{
308	pLCHSGeometry->cCylinders = cLCHSCylinders;
309	pLCHSGeometry->cHeads = cLCHSHeads;
310	pLCHSGeometry->cSectors = cLCHSSectors;
311	Log(("%s: LCHS=%d %d %d\n", __FUNCTION__, cLCHSCylinders, cLCHSHeads, cLCHSSectors));
312	return VINF_SUCCESS;
313	}
314	}
315	}
316	return VERR_INVALID_PARAMETER;
317	}
318
319
320	/**
321	* Write to CMOS memory.
322	* This is used by the init complete code.
323	*/
324	static void pcbiosCmosWrite(PPDMDEVINS pDevIns, int off, uint32_t u32Val)
325	{
326	Assert(off < 128);
327	Assert(u32Val < 256);
328
329	#if 1
330	int rc = PDMDevHlpCMOSWrite(pDevIns, off, u32Val);
331	AssertRC(rc);
332	#else
333	PVM pVM = PDMDevHlpGetVM(pDevIns);
334	IOMIOPortWrite(pVM, 0x70, off, 1);
335	IOMIOPortWrite(pVM, 0x71, u32Val, 1);
336	IOMIOPortWrite(pVM, 0x70, 0, 1);
337	#endif
338	}
339
340	/* -=-=-=-=-=-=- based on code from pc.c -=-=-=-=-=-=- */
341
342	/**
343	* Initializes the CMOS data for one harddisk.
344	*/
345	static void pcbiosCmosInitHardDisk(PPDMDEVINS pDevIns, int offType, int offInfo, PCPDMMEDIAGEOMETRY pLCHSGeometry)
346	{
347	Log2(("%s: offInfo=%#x: LCHS=%d/%d/%d\n", __FUNCTION__, offInfo, pLCHSGeometry->cCylinders, pLCHSGeometry->cHeads, pLCHSGeometry->cSectors));
348	if (offType)
349	pcbiosCmosWrite(pDevIns, offType, 48);
350	/* Cylinders low */
351	pcbiosCmosWrite(pDevIns, offInfo + 0, RT_MIN(pLCHSGeometry->cCylinders, 1024) & 0xff);
352	/* Cylinders high */
353	pcbiosCmosWrite(pDevIns, offInfo + 1, RT_MIN(pLCHSGeometry->cCylinders, 1024) >> 8);
354	/* Heads */
355	pcbiosCmosWrite(pDevIns, offInfo + 2, pLCHSGeometry->cHeads);
356	/* Landing zone low */
357	pcbiosCmosWrite(pDevIns, offInfo + 3, 0xff);
358	/* Landing zone high */
359	pcbiosCmosWrite(pDevIns, offInfo + 4, 0xff);
360	/* Write precomp low */
361	pcbiosCmosWrite(pDevIns, offInfo + 5, 0xff);
362	/* Write precomp high */
363	pcbiosCmosWrite(pDevIns, offInfo + 6, 0xff);
364	/* Sectors */
365	pcbiosCmosWrite(pDevIns, offInfo + 7, pLCHSGeometry->cSectors);
366	}
367
368	/**
369	* Set logical CHS geometry for a hard disk
370	*
371	* @returns VBox status code.
372	* @param pBase Base interface for the device.
373	* @param pHardDisk The hard disk.
374	* @param pLCHSGeometry Where to store the geometry settings.
375	*/
376	static int setLogicalDiskGeometry(PPDMIBASE pBase, PPDMIBLOCKBIOS pHardDisk, PPDMMEDIAGEOMETRY pLCHSGeometry)
377	{
378	PDMMEDIAGEOMETRY LCHSGeometry;
379	int rc = VINF_SUCCESS;
380
381	rc = pHardDisk->pfnGetLCHSGeometry(pHardDisk, &LCHSGeometry);
382	if ( rc == VERR_PDM_GEOMETRY_NOT_SET
383	\|\| LCHSGeometry.cCylinders == 0
384	\|\| LCHSGeometry.cCylinders > 1024
385	\|\| LCHSGeometry.cHeads == 0
386	\|\| LCHSGeometry.cHeads > 255
387	\|\| LCHSGeometry.cSectors == 0
388	\|\| LCHSGeometry.cSectors > 63)
389	{
390	PPDMIBLOCK pBlock;
391	pBlock = (PPDMIBLOCK)pBase->pfnQueryInterface(pBase, PDMINTERFACE_BLOCK);
392	/* No LCHS geometry, autodetect and set. */
393	rc = biosGuessDiskLCHS(pBlock, &LCHSGeometry);
394	if (RT_FAILURE(rc))
395	{
396	/* Try if PCHS geometry works, otherwise fall back. */
397	rc = pHardDisk->pfnGetPCHSGeometry(pHardDisk, &LCHSGeometry);
398	}
399	if ( RT_FAILURE(rc)
400	\|\| LCHSGeometry.cCylinders == 0
401	\|\| LCHSGeometry.cCylinders > 1024
402	\|\| LCHSGeometry.cHeads == 0
403	\|\| LCHSGeometry.cHeads > 16
404	\|\| LCHSGeometry.cSectors == 0
405	\|\| LCHSGeometry.cSectors > 63)
406	{
407	uint64_t cSectors = pBlock->pfnGetSize(pBlock) / 512;
408	if (cSectors / 16 / 63 <= 1024)
409	{
410	LCHSGeometry.cCylinders = RT_MAX(cSectors / 16 / 63, 1);
411	LCHSGeometry.cHeads = 16;
412	}
413	else if (cSectors / 32 / 63 <= 1024)
414	{
415	LCHSGeometry.cCylinders = RT_MAX(cSectors / 32 / 63, 1);
416	LCHSGeometry.cHeads = 32;
417	}
418	else if (cSectors / 64 / 63 <= 1024)
419	{
420	LCHSGeometry.cCylinders = cSectors / 64 / 63;
421	LCHSGeometry.cHeads = 64;
422	}
423	else if (cSectors / 128 / 63 <= 1024)
424	{
425	LCHSGeometry.cCylinders = cSectors / 128 / 63;
426	LCHSGeometry.cHeads = 128;
427	}
428	else
429	{
430	LCHSGeometry.cCylinders = RT_MIN(cSectors / 255 / 63, 1024);
431	LCHSGeometry.cHeads = 255;
432	}
433	LCHSGeometry.cSectors = 63;
434
435	}
436	rc = pHardDisk->pfnSetLCHSGeometry(pHardDisk, &LCHSGeometry);
437	if (rc == VERR_VDI_IMAGE_READ_ONLY)
438	{
439	LogRel(("DevPcBios: ATA failed to update LCHS geometry\n"));
440	rc = VINF_SUCCESS;
441	}
442	}
443
444	*pLCHSGeometry = LCHSGeometry;
445
446	return rc;
447	}
448
449	/**
450	* Get BIOS boot code from enmBootDevice in order
451	*
452	* @todo r=bird: This is a rather silly function since the conversion is 1:1.
453	*/
454	static uint8_t getBiosBootCode(PDEVPCBIOS pThis, unsigned iOrder)
455	{
456	switch (pThis->aenmBootDevice[iOrder])
457	{
458	case DEVPCBIOSBOOT_NONE:
459	return 0;
460	case DEVPCBIOSBOOT_FLOPPY:
461	return 1;
462	case DEVPCBIOSBOOT_HD:
463	return 2;
464	case DEVPCBIOSBOOT_DVD:
465	return 3;
466	case DEVPCBIOSBOOT_LAN:
467	return 4;
468	default:
469	AssertMsgFailed(("aenmBootDevice[%d]=%d\n", iOrder, pThis->aenmBootDevice[iOrder]));
470	return 0;
471	}
472	}
473
474
475	/**
476	* Init complete notification.
477	* This routine will write information needed by the bios to the CMOS.
478	*
479	* @returns VBOX status code.
480	* @param pDevIns The device instance.
481	* @see http://www.brl.ntt.co.jp/people/takehiko/interrupt/CMOS.LST.txt for
482	* a description of standard and non-standard CMOS registers.
483	*/
484	static DECLCALLBACK(int) pcbiosInitComplete(PPDMDEVINS pDevIns)
485	{
486	PDEVPCBIOS pThis = PDMINS_2_DATA(pDevIns, PDEVPCBIOS);
487	uint32_t u32;
488	unsigned i;
489	PVM pVM = PDMDevHlpGetVM(pDevIns);
490	PPDMIBLOCKBIOS apHDs[4] = {0};
491	PPDMIBLOCKBIOS apFDs[2] = {0};
492	AssertRelease(pVM);
493	LogFlow(("pcbiosInitComplete:\n"));
494
495	/*
496	* Memory sizes.
497	*/
498	/* base memory. */
499	u32 = pThis->cbRam > 640 ? 640 : (uint32_t)pThis->cbRam / _1K;
500	pcbiosCmosWrite(pDevIns, 0x15, u32 & 0xff); /* 15h - Base Memory in K, Low Byte */
501	pcbiosCmosWrite(pDevIns, 0x16, u32 >> 8); /* 16h - Base Memory in K, High Byte */
502
503	/* Extended memory, up to 65MB */
504	u32 = pThis->cbRam >= 65 * _1M ? 0xffff : ((uint32_t)pThis->cbRam - _1M) / _1K;
505	pcbiosCmosWrite(pDevIns, 0x17, u32 & 0xff); /* 17h - Extended Memory in K, Low Byte */
506	pcbiosCmosWrite(pDevIns, 0x18, u32 >> 8); /* 18h - Extended Memory in K, High Byte */
507	pcbiosCmosWrite(pDevIns, 0x30, u32 & 0xff); /* 30h - Extended Memory in K, Low Byte */
508	pcbiosCmosWrite(pDevIns, 0x31, u32 >> 8); /* 31h - Extended Memory in K, High Byte */
509
510	/* Bochs BIOS specific? Anyway, it's the amount of memory above 16MB */
511	if (pThis->cbRam > 16 * _1M)
512	{
513	u32 = (uint32_t)( (pThis->cbRam - 16 * _1M) / _64K );
514	u32 = RT_MIN(u32, 0xffff);
515	}
516	else
517	u32 = 0;
518	pcbiosCmosWrite(pDevIns, 0x34, u32 & 0xff);
519	pcbiosCmosWrite(pDevIns, 0x35, u32 >> 8);
520
521	/*
522	* Bochs BIOS specifics - boot device.
523	* We do both new and old (ami-style) settings.
524	* See rombios.c line ~7215 (int19_function).
525	*/
526
527	uint8_t reg3d = getBiosBootCode(pThis, 0) \| (getBiosBootCode(pThis, 1) << 4);
528	uint8_t reg38 = /* pcbiosCmosRead(pDevIns, 0x38) \| */ getBiosBootCode(pThis, 2) << 4;
529	/* This is an extension. Bochs BIOS normally supports only 3 boot devices. */
530	uint8_t reg3c = getBiosBootCode(pThis, 3) \| (pThis->uBootDelay << 4);
531	pcbiosCmosWrite(pDevIns, 0x3d, reg3d);
532	pcbiosCmosWrite(pDevIns, 0x38, reg38);
533	pcbiosCmosWrite(pDevIns, 0x3c, reg3c);
534
535	/*
536	* PXE debug option.
537	*/
538	pcbiosCmosWrite(pDevIns, 0x3f, pThis->u8PXEDebug);
539
540	/*
541	* Floppy drive type.
542	*/
543	for (i = 0; i < RT_ELEMENTS(apFDs); i++)
544	{
545	PPDMIBASE pBase;
546	int rc = PDMR3QueryLun(pVM, pThis->pszFDDevice, 0, i, &pBase);
547	if (RT_SUCCESS(rc))
548	apFDs[i] = (PPDMIBLOCKBIOS)pBase->pfnQueryInterface(pBase, PDMINTERFACE_BLOCK_BIOS);
549	}
550	u32 = 0;
551	if (apFDs[0])
552	switch (apFDs[0]->pfnGetType(apFDs[0]))
553	{
554	case PDMBLOCKTYPE_FLOPPY_360: u32 \|= 1 << 4; break;
555	case PDMBLOCKTYPE_FLOPPY_1_20: u32 \|= 2 << 4; break;
556	case PDMBLOCKTYPE_FLOPPY_720: u32 \|= 3 << 4; break;
557	case PDMBLOCKTYPE_FLOPPY_1_44: u32 \|= 4 << 4; break;
558	case PDMBLOCKTYPE_FLOPPY_2_88: u32 \|= 5 << 4; break;
559	default: AssertFailed(); break;
560	}
561	if (apFDs[1])
562	switch (apFDs[1]->pfnGetType(apFDs[1]))
563	{
564	case PDMBLOCKTYPE_FLOPPY_360: u32 \|= 1; break;
565	case PDMBLOCKTYPE_FLOPPY_1_20: u32 \|= 2; break;
566	case PDMBLOCKTYPE_FLOPPY_720: u32 \|= 3; break;
567	case PDMBLOCKTYPE_FLOPPY_1_44: u32 \|= 4; break;
568	case PDMBLOCKTYPE_FLOPPY_2_88: u32 \|= 5; break;
569	default: AssertFailed(); break;
570	}
571	pcbiosCmosWrite(pDevIns, 0x10, u32); /* 10h - Floppy Drive Type */
572
573	/*
574	* Equipment byte.
575	*/
576	u32 = !!apFDs[0] + !!apFDs[1];
577	switch (u32)
578	{
579	case 1: u32 = 0x01; break; /* floppy installed, 2 drives. */
580	default:u32 = 0; break; /* floppy not installed. */
581	}
582	u32 \|= RT_BIT(1); /* math coprocessor installed */
583	u32 \|= RT_BIT(2); /* keyboard enabled (or mouse?) */
584	u32 \|= RT_BIT(3); /* display enabled (monitory type is 0, i.e. vga) */
585	pcbiosCmosWrite(pDevIns, 0x14, u32); /* 14h - Equipment Byte */
586
587	/*
588	* Harddisks.
589	*/
590	for (i = 0; i < RT_ELEMENTS(apHDs); i++)
591	{
592	PPDMIBASE pBase;
593	int rc = PDMR3QueryLun(pVM, pThis->pszHDDevice, 0, i, &pBase);
594	if (RT_SUCCESS(rc))
595	apHDs[i] = (PPDMIBLOCKBIOS)pBase->pfnQueryInterface(pBase, PDMINTERFACE_BLOCK_BIOS);
596	if ( apHDs[i]
597	&& ( apHDs[i]->pfnGetType(apHDs[i]) != PDMBLOCKTYPE_HARD_DISK
598	\|\| !apHDs[i]->pfnIsVisible(apHDs[i])))
599	apHDs[i] = NULL;
600	if (apHDs[i])
601	{
602	PDMMEDIAGEOMETRY LCHSGeometry;
603	int rc = setLogicalDiskGeometry(pBase, apHDs[i], &LCHSGeometry);
604	AssertRC(rc);
605
606	if (i < 4)
607	{
608	/* Award BIOS extended drive types for first to fourth disk.
609	* Used by the BIOS for setting the logical geometry. */
610	int offType, offInfo;
611	switch (i)
612	{
613	case 0:
614	offType = 0x19;
615	offInfo = 0x1e;
616	break;
617	case 1:
618	offType = 0x1a;
619	offInfo = 0x26;
620	break;
621	case 2:
622	offType = 0x00;
623	offInfo = 0x67;
624	break;
625	case 3:
626	default:
627	offType = 0x00;
628	offInfo = 0x70;
629	break;
630	}
631	pcbiosCmosInitHardDisk(pDevIns, offType, offInfo,
632	&LCHSGeometry);
633	}
634	LogRel(("DevPcBios: ATA LUN#%d LCHS=%u/%u/%u\n", i, LCHSGeometry.cCylinders, LCHSGeometry.cHeads, LCHSGeometry.cSectors));
635	}
636	}
637
638	/* 0Fh means extended and points to 19h, 1Ah */
639	u32 = (apHDs[0] ? 0xf0 : 0) \| (apHDs[1] ? 0x0f : 0);
640	pcbiosCmosWrite(pDevIns, 0x12, u32);
641
642	/*
643	* Sata Harddisks.
644	*/
645	if (pThis->pszSataDevice)
646	{
647	/* Clear pointers to IDE controller. */
648	for (i = 0; i < RT_ELEMENTS(apHDs); i++)
649	apHDs[i] = NULL;
650
651	for (i = 0; i < RT_ELEMENTS(apHDs); i++)
652	{
653	PPDMIBASE pBase;
654	int rc = PDMR3QueryLun(pVM, pThis->pszSataDevice, 0, pThis->iSataHDLUN[i], &pBase);
655	if (RT_SUCCESS(rc))
656	apHDs[i] = (PPDMIBLOCKBIOS)pBase->pfnQueryInterface(pBase, PDMINTERFACE_BLOCK_BIOS);
657	if ( apHDs[i]
658	&& ( apHDs[i]->pfnGetType(apHDs[i]) != PDMBLOCKTYPE_HARD_DISK
659	\|\| !apHDs[i]->pfnIsVisible(apHDs[i])))
660	apHDs[i] = NULL;
661	if (apHDs[i])
662	{
663	PDMMEDIAGEOMETRY LCHSGeometry;
664	int rc = setLogicalDiskGeometry(pBase, apHDs[i], &LCHSGeometry);
665	AssertRC(rc);
666
667	if (i < 4)
668	{
669	/* Award BIOS extended drive types for first to fourth disk.
670	* Used by the BIOS for setting the logical geometry. */
671	int offInfo;
672	switch (i)
673	{
674	case 0:
675	offInfo = 0x40;
676	break;
677	case 1:
678	offInfo = 0x48;
679	break;
680	case 2:
681	offInfo = 0x50;
682	break;
683	case 3:
684	default:
685	offInfo = 0x58;
686	break;
687	}
688	pcbiosCmosInitHardDisk(pDevIns, 0x00, offInfo,
689	&LCHSGeometry);
690	}
691	LogRel(("DevPcBios: SATA LUN#%d LCHS=%u/%u/%u\n", i, LCHSGeometry.cCylinders, LCHSGeometry.cHeads, LCHSGeometry.cSectors));
692	}
693	}
694	}
695
696	LogFlow(("%s: returns VINF_SUCCESS\n", __FUNCTION__));
697	return VINF_SUCCESS;
698	}
699
700
701	/**
702	* Port I/O Handler for IN operations.
703	*
704	* @returns VBox status code.
705	*
706	* @param pDevIns The device instance.
707	* @param pvUser User argument - ignored.
708	* @param Port Port number used for the IN operation.
709	* @param pu32 Where to store the result.
710	* @param cb Number of bytes read.
711	*/
712	static DECLCALLBACK(int) pcbiosIOPortRead(PPDMDEVINS pDevIns, void pvUser, RTIOPORT Port, uint32_t pu32, unsigned cb)
713	{
714	NOREF(pDevIns);
715	NOREF(pvUser);
716	NOREF(Port);
717	NOREF(pu32);
718	NOREF(cb);
719	return VERR_IOM_IOPORT_UNUSED;
720	}
721
722
723	/**
724	* Port I/O Handler for OUT operations.
725	*
726	* @returns VBox status code.
727	*
728	* @param pDevIns The device instance.
729	* @param pvUser User argument - ignored.
730	* @param Port Port number used for the IN operation.
731	* @param u32 The value to output.
732	* @param cb The value size in bytes.
733	*/
734	static DECLCALLBACK(int) pcbiosIOPortWrite(PPDMDEVINS pDevIns, void *pvUser, RTIOPORT Port, uint32_t u32, unsigned cb)
735	{
736	/*
737	* Bochs BIOS Panic
738	*/
739	if ( cb == 2
740	&& ( Port == 0x400
741	\|\| Port == 0x401))
742	{
743	Log(("pcbios: PC BIOS panic at rombios.c(%d)\n", u32));
744	AssertReleaseMsgFailed(("PC BIOS panic at rombios.c(%d)\n", u32));
745	return VERR_INTERNAL_ERROR;
746	}
747
748	/*
749	* Bochs BIOS char printing.
750	*/
751	if ( cb == 1
752	&& ( Port == 0x402
753	\|\| Port == 0x403))
754	{
755	PDEVPCBIOS pThis = PDMINS_2_DATA(pDevIns, PDEVPCBIOS);
756	/* The raw version. */
757	switch (u32)
758	{
759	case '\r': Log2(("pcbios: <return>\n")); break;
760	case '\n': Log2(("pcbios: <newline>\n")); break;
761	case '\t': Log2(("pcbios: <tab>\n")); break;
762	default: Log2(("pcbios: %c (%02x)\n", u32, u32)); break;
763	}
764
765	/* The readable, buffered version. */
766	if (u32 == '\n' \|\| u32 == '\r')
767	{
768	pThis->szMsg[pThis->iMsg] = '\0';
769	if (pThis->iMsg)
770	Log(("pcbios: %s\n", pThis->szMsg));
771	pThis->iMsg = 0;
772	}
773	else
774	{
775	if (pThis->iMsg >= sizeof(pThis->szMsg)-1)
776	{
777	pThis->szMsg[pThis->iMsg] = '\0';
778	Log(("pcbios: %s\n", pThis->szMsg));
779	pThis->iMsg = 0;
780	}
781	pThis->szMsg[pThis->iMsg] = (char )u32;
782	pThis->szMsg[++pThis->iMsg] = '\0';
783	}
784	return VINF_SUCCESS;
785	}
786
787	/*
788	* Bochs BIOS shutdown request.
789	*/
790	if (cb == 1 && Port == 0x8900)
791	{
792	static const unsigned char szShutdown[] = "Shutdown";
793	PDEVPCBIOS pThis = PDMINS_2_DATA(pDevIns, PDEVPCBIOS);
794	if (u32 == szShutdown[pThis->iShutdown])
795	{
796	pThis->iShutdown++;
797	if (pThis->iShutdown == 8)
798	{
799	pThis->iShutdown = 0;
800	LogRel(("8900h shutdown request.\n"));
801	return PDMDevHlpVMPowerOff(pDevIns);
802	}
803	}
804	else
805	pThis->iShutdown = 0;
806	return VINF_SUCCESS;
807	}
808
809	/* not in use. */
810	return VINF_SUCCESS;
811	}
812
813
814	/**
815	* Construct the DMI table.
816	*
817	* @returns VBox status code.
818	* @param pDevIns The device instance.
819	* @param pTable Where to create the DMI table.
820	* @param cbMax The max size of the DMI table.
821	* @param pUuid Pointer to the UUID to use if the DmiUuid
822	* configuration string isn't present.
823	* @param pCfgHandle The handle to our config node.
824	*/
825	static int pcbiosPlantDMITable(PPDMDEVINS pDevIns, uint8_t *pTable, unsigned cbMax, PRTUUID pUuid, PCFGMNODE pCfgHandle)
826	{
827	char pszStr = (char )pTable;
828	int iStrNr;
829	int rc;
830	char pszDmiBIOSVendor, pszDmiBIOSVersion, *pszDmiBIOSReleaseDate;
831	int iDmiBIOSReleaseMajor, iDmiBIOSReleaseMinor, iDmiBIOSFirmwareMajor, iDmiBIOSFirmwareMinor;
832	char pszDmiSystemVendor, pszDmiSystemProduct, pszDmiSystemVersion, pszDmiSystemSerial, pszDmiSystemUuid, pszDmiSystemFamily;
833
834	#define SETSTRING(memb, str) \
835	do { \
836	if (!str[0]) \
837	memb = 0; /* empty string */ \
838	else \
839	{ \
840	memb = iStrNr++; \
841	size_t _len = strlen(str) + 1; \
842	size_t _max = (size_t)(pszStr + _len - (char )pTable) + 5; / +1 for strtab terminator +4 for end-of-table entry */ \
843	if (_max > cbMax) \
844	return PDMDevHlpVMSetError(pDevIns, VERR_TOO_MUCH_DATA, RT_SRC_POS, \
845	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"), _max, cbMax); \
846	memcpy(pszStr, str, _len); \
847	pszStr += _len; \
848	} \
849	} while (0)
850	#define READCFGSTR(name, variable, default_value) \
851	do { \
852	rc = CFGMR3QueryStringAlloc(pCfgHandle, name, & variable); \
853	if (rc == VERR_CFGM_VALUE_NOT_FOUND) \
854	variable = MMR3HeapStrDup(PDMDevHlpGetVM(pDevIns), MM_TAG_CFGM, default_value); \
855	else if (RT_FAILURE(rc)) \
856	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS, \
857	N_("Configuration error: Querying \"" name "\" as a string failed")); \
858	else if (!strcmp(variable, "<EMPTY>")) \
859	variable[0] = '\0'; \
860	} while (0)
861	#define READCFGINT(name, variable, default_value) \
862	do { \
863	rc = CFGMR3QueryS32(pCfgHandle, name, & variable); \
864	if (rc == VERR_CFGM_VALUE_NOT_FOUND) \
865	variable = default_value; \
866	else if (RT_FAILURE(rc)) \
867	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS, \
868	N_("Configuration error: Querying \"" name "\" as a Int failed")); \
869	} while (0)
870
871
872	/*
873	* Don't change this information otherwise Windows guests will demand re-activation!
874	*/
875	READCFGSTR("DmiBIOSVendor", pszDmiBIOSVendor, "innotek GmbH");
876	READCFGSTR("DmiBIOSVersion", pszDmiBIOSVersion, "VirtualBox");
877	READCFGSTR("DmiBIOSReleaseDate", pszDmiBIOSReleaseDate, "12/01/2006");
878	READCFGINT("DmiBIOSReleaseMajor", iDmiBIOSReleaseMajor, 0);
879	READCFGINT("DmiBIOSReleaseMinor", iDmiBIOSReleaseMinor, 0);
880	READCFGINT("DmiBIOSFirmwareMajor", iDmiBIOSFirmwareMajor, 0);
881	READCFGINT("DmiBIOSFirmwareMinor", iDmiBIOSFirmwareMinor, 0);
882	READCFGSTR("DmiSystemVendor", pszDmiSystemVendor, "innotek GmbH");
883	READCFGSTR("DmiSystemProduct", pszDmiSystemProduct, "VirtualBox");
884	READCFGSTR("DmiSystemVersion", pszDmiSystemVersion, "1.2");
885	READCFGSTR("DmiSystemSerial", pszDmiSystemSerial, "0");
886	rc = CFGMR3QueryStringAlloc(pCfgHandle, "DmiSystemUuid", &pszDmiSystemUuid);
887	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
888	pszDmiSystemUuid = NULL;
889	else if (RT_FAILURE(rc))
890	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
891	N_("Configuration error: Querying \"DmiUuid\" as a string failed"));
892	READCFGSTR("DmiSystemFamily", pszDmiSystemFamily, "Virtual Machine");
893
894	/* DMI BIOS information */
895	PDMIBIOSINF pBIOSInf = (PDMIBIOSINF)pszStr;
896
897	pszStr = (char *)&pBIOSInf->u8ReleaseMajor;
898	pBIOSInf->header.u8Length = RT_OFFSETOF(DMIBIOSINF, u8ReleaseMajor);
899
900	/* don't set these fields by default for legacy compatibility */
901	if (iDmiBIOSReleaseMajor != 0 \|\| iDmiBIOSReleaseMinor != 0)
902	{
903	pszStr = (char *)&pBIOSInf->u8FirmwareMajor;
904	pBIOSInf->header.u8Length = RT_OFFSETOF(DMIBIOSINF, u8FirmwareMajor);
905	pBIOSInf->u8ReleaseMajor = iDmiBIOSReleaseMajor;
906	pBIOSInf->u8ReleaseMinor = iDmiBIOSReleaseMinor;
907	if (iDmiBIOSFirmwareMajor != 0 \|\| iDmiBIOSFirmwareMinor != 0)
908	{
909	pszStr = (char *)(pBIOSInf + 1);
910	pBIOSInf->header.u8Length = sizeof(DMIBIOSINF);
911	pBIOSInf->u8FirmwareMajor = iDmiBIOSFirmwareMajor;
912	pBIOSInf->u8FirmwareMinor = iDmiBIOSFirmwareMinor;
913	}
914	}
915
916	iStrNr = 1;
917	pBIOSInf->header.u8Type = 0; /* BIOS Information */
918	pBIOSInf->header.u16Handle = 0x0000;
919	SETSTRING(pBIOSInf->u8Vendor, pszDmiBIOSVendor);
920	SETSTRING(pBIOSInf->u8Version, pszDmiBIOSVersion);
921	pBIOSInf->u16Start = 0xE000;
922	SETSTRING(pBIOSInf->u8Release, pszDmiBIOSReleaseDate);
923	pBIOSInf->u8ROMSize = 1; /* 128K */
924	pBIOSInf->u64Characteristics = RT_BIT(4) /* ISA is supported */
925	\| RT_BIT(7) /* PCI is supported */
926	\| RT_BIT(15) /* Boot from CD is supported */
927	\| RT_BIT(16) /* Selectable Boot is supported */
928	\| RT_BIT(27) /* Int 9h, 8042 Keyboard services supported */
929	\| RT_BIT(30) /* Int 10h, CGA/Mono Video Services supported */
930	/* any more?? */
931	;
932	pBIOSInf->u8CharacteristicsByte1 = RT_BIT(0) /* ACPI is supported */
933	/* any more?? */
934	;
935	pBIOSInf->u8CharacteristicsByte2 = 0
936	/* any more?? */
937	;
938	*pszStr++ = '\0';
939
940	/* DMI system information */
941	PDMISYSTEMINF pSystemInf = (PDMISYSTEMINF)pszStr;
942	pszStr = (char *)(pSystemInf + 1);
943	iStrNr = 1;
944	pSystemInf->header.u8Type = 1; /* System Information */
945	pSystemInf->header.u8Length = sizeof(*pSystemInf);
946	pSystemInf->header.u16Handle = 0x0001;
947	SETSTRING(pSystemInf->u8Manufacturer, pszDmiSystemVendor);
948	SETSTRING(pSystemInf->u8ProductName, pszDmiSystemProduct);
949	SETSTRING(pSystemInf->u8Version, pszDmiSystemVersion);
950	SETSTRING(pSystemInf->u8SerialNumber, pszDmiSystemSerial);
951
952	RTUUID uuid;
953	if (pszDmiSystemUuid)
954	{
955	int rc = RTUuidFromStr(&uuid, pszDmiSystemUuid);
956	if (RT_FAILURE(rc))
957	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
958	N_("Invalid UUID for DMI tables specified"));
959	uuid.Gen.u32TimeLow = RT_H2BE_U32(uuid.Gen.u32TimeLow);
960	uuid.Gen.u16TimeMid = RT_H2BE_U16(uuid.Gen.u16TimeMid);
961	uuid.Gen.u16TimeHiAndVersion = RT_H2BE_U16(uuid.Gen.u16TimeHiAndVersion);
962	pUuid = &uuid;
963	}
964	memcpy(pSystemInf->au8Uuid, pUuid, sizeof(RTUUID));
965
966	pSystemInf->u8WakeupType = 6; /* Power Switch */
967	pSystemInf->u8SKUNumber = 0;
968	SETSTRING(pSystemInf->u8Family, pszDmiSystemFamily);
969	*pszStr++ = '\0';
970
971	/* End-of-table marker - includes padding to account for fixed table size. */
972	PDMIHDR pEndOfTable = (PDMIHDR)pszStr;
973	pEndOfTable->u8Type = 0x7f;
974	pEndOfTable->u8Length = cbMax - ((char )pszStr - (char )pTable) - 2;
975	pEndOfTable->u16Handle = 0xFFFF;
976
977	/* If more fields are added here, fix the size check in SETSTRING */
978
979	#undef SETSTRING
980	#undef READCFG
981
982	MMR3HeapFree(pszDmiBIOSVendor);
983	MMR3HeapFree(pszDmiBIOSVersion);
984	MMR3HeapFree(pszDmiBIOSReleaseDate);
985	MMR3HeapFree(pszDmiSystemVendor);
986	MMR3HeapFree(pszDmiSystemProduct);
987	MMR3HeapFree(pszDmiSystemVersion);
988	MMR3HeapFree(pszDmiSystemSerial);
989	MMR3HeapFree(pszDmiSystemUuid);
990	MMR3HeapFree(pszDmiSystemFamily);
991
992	return VINF_SUCCESS;
993	}
994	AssertCompile(VBOX_DMI_TABLE_ENTR == 3);
995
996
997	/**
998	* Calculate a simple checksum for the MPS table.
999	*
1000	* @param data data
1001	* @param len size of data
1002	*/
1003	static uint8_t pcbiosChecksum(const uint8_t * const au8Data, uint32_t u32Length)
1004	{
1005	uint8_t u8Sum = 0;
1006	for (size_t i = 0; i < u32Length; ++i)
1007	u8Sum += au8Data[i];
1008	return -u8Sum;
1009	}
1010
1011
1012	/**
1013	* Construct the MPS table. Only applicable if IOAPIC is active!
1014	*
1015	* See ``MultiProcessor Specificatiton Version 1.4 (May 1997)'':
1016	* ``1.3 Scope
1017	* ...
1018	* The hardware required to implement the MP specification is kept to a
1019	* minimum, as follows:
1020	* * One or more processors that are Intel architecture instruction set
1021	* compatible, such as the CPUs in the Intel486 or Pentium processor
1022	* family.
1023	* * One or more APICs, such as the Intel 82489DX Advanced Programmable
1024	* Interrupt Controller or the integrated APIC, such as that on the
1025	* Intel Pentium 735\90 and 815\100 processors, together with a discrete
1026	* I/O APIC unit.''
1027	* and later:
1028	* ``4.3.3 I/O APIC Entries
1029	* The configuration table contains one or more entries for I/O APICs.
1030	* ...
1031	* I/O APIC FLAGS: EN 3:0 1 If zero, this I/O APIC is unusable, and the
1032	* operating system should not attempt to access
1033	* this I/O APIC.
1034	* At least one I/O APIC must be enabled.''
1035	*
1036	* @param pDevIns The device instance data.
1037	* @param addr physical address in guest memory.
1038	*/
1039	static void pcbiosPlantMPStable(PPDMDEVINS pDevIns, uint8_t *pTable)
1040	{
1041	/* configuration table */
1042	PMPSCFGTBLHEADER pCfgTab = (MPSCFGTBLHEADER*)pTable;
1043	memcpy(pCfgTab->au8Signature, "PCMP", 4);
1044	pCfgTab->u8SpecRev = 4; /* 1.4 */
1045	memcpy(pCfgTab->au8OemId, "VBOXCPU ", 8);
1046	memcpy(pCfgTab->au8ProductId, "VirtualBox ", 12);
1047	pCfgTab->u32OemTablePtr = 0;
1048	pCfgTab->u16OemTableSize = 0;
1049	pCfgTab->u16EntryCount = 1 /* Processor */
1050	+ 1 /* ISA Bus */
1051	+ 1 /* I/O-APIC */
1052	+ 16 /* Interrupts */;
1053	pCfgTab->u32AddrLocalApic = 0xfee00000;
1054	pCfgTab->u16ExtTableLength = 0;
1055	pCfgTab->u8ExtTableChecksxum = 0;
1056	pCfgTab->u8Reserved = 0;
1057
1058	uint32_t u32Eax, u32Ebx, u32Ecx, u32Edx;
1059	uint32_t u32CPUSignature = 0x0520; /* default: Pentium 100 */
1060	uint32_t u32FeatureFlags = 0x0001; /* default: FPU */
1061	PDMDevHlpGetCpuId(pDevIns, 0, &u32Eax, &u32Ebx, &u32Ecx, &u32Edx);
1062	if (u32Eax >= 1)
1063	{
1064	PDMDevHlpGetCpuId(pDevIns, 1, &u32Eax, &u32Ebx, &u32Ecx, &u32Edx);
1065	u32CPUSignature = u32Eax & 0xfff;
1066	/* Local APIC will be enabled later so override it here. Since we provide
1067	* an MP table we have an IOAPIC and therefore a Local APIC. */
1068	u32FeatureFlags = u32Edx \| X86_CPUID_FEATURE_EDX_APIC;
1069	}
1070
1071	/* one processor so far */
1072	PMPSPROCENTRY pProcEntry = (PMPSPROCENTRY)(pCfgTab+1);
1073	pProcEntry->u8EntryType = 0; /* processor entry */
1074	pProcEntry->u8LocalApicId = 0;
1075	pProcEntry->u8LocalApicVersion = 0x11;
1076	pProcEntry->u8CPUFlags = 2 /* bootstrap processor / \| 1 / enabled */;
1077	pProcEntry->u32CPUSignature = u32CPUSignature;
1078	pProcEntry->u32CPUFeatureFlags = u32FeatureFlags;
1079	pProcEntry->u32Reserved[0] =
1080	pProcEntry->u32Reserved[1] = 0;
1081
1082	/* ISA bus */
1083	PMPSBUSENTRY pBusEntry = (PMPSBUSENTRY)(pProcEntry+1);
1084	pBusEntry->u8EntryType = 1; /* bus entry */
1085	pBusEntry->u8BusId = 0; /* this ID is referenced by the interrupt entries */
1086	memcpy(pBusEntry->au8BusTypeStr, "ISA ", 6);
1087
1088	/* PCI bus? */
1089
1090	/* I/O-APIC.
1091	* MP spec: "The configuration table contains one or more entries for I/O APICs.
1092	* ... At least one I/O APIC must be enabled." */
1093	PMPSIOAPICENTRY pIOAPICEntry = (PMPSIOAPICENTRY)(pBusEntry+1);
1094	pIOAPICEntry->u8EntryType = 2; /* I/O-APIC entry */
1095	pIOAPICEntry->u8Id = 1; /* this ID is referenced by the interrupt entries */
1096	pIOAPICEntry->u8Version = 0x11;
1097	pIOAPICEntry->u8Flags = 1 /* enable */;
1098	pIOAPICEntry->u32Addr = 0xfec00000;
1099
1100	PMPSIOIRQENTRY pIrqEntry = (PMPSIOIRQENTRY)(pIOAPICEntry+1);
1101	for (int i = 0; i < 16; i++, pIrqEntry++)
1102	{
1103	pIrqEntry->u8EntryType = 3; /* I/O interrupt entry */
1104	pIrqEntry->u8Type = 0; /* INT, vectored interrupt */
1105	pIrqEntry->u16Flags = 0; /* polarity of APIC I/O input signal = conforms to bus,
1106	trigger mode = conforms to bus */
1107	pIrqEntry->u8SrcBusId = 0; /* ISA bus */
1108	pIrqEntry->u8SrcBusIrq = i;
1109	pIrqEntry->u8DstIOAPICId = 1;
1110	pIrqEntry->u8DstIOAPICInt = i;
1111	}
1112
1113	pCfgTab->u16Length = (uint8_t*)pIrqEntry - pTable;
1114	pCfgTab->u8Checksum = pcbiosChecksum(pTable, pCfgTab->u16Length);
1115
1116	AssertMsg(pCfgTab->u16Length < 0x1000 - 0x100,
1117	("VBOX_MPS_TABLE_SIZE=%d, maximum allowed size is %d",
1118	pCfgTab->u16Length, 0x1000-0x100));
1119
1120	MPSFLOATPTR floatPtr;
1121	floatPtr.au8Signature[0] = '_';
1122	floatPtr.au8Signature[1] = 'M';
1123	floatPtr.au8Signature[2] = 'P';
1124	floatPtr.au8Signature[3] = '_';
1125	floatPtr.u32MPSAddr = VBOX_MPS_TABLE_BASE;
1126	floatPtr.u8Length = 1; /* structure size in paragraphs */
1127	floatPtr.u8SpecRev = 4; /* MPS revision 1.4 */
1128	floatPtr.u8Checksum = 0;
1129	floatPtr.au8Feature[0] = 0;
1130	floatPtr.au8Feature[1] = 0;
1131	floatPtr.au8Feature[2] = 0;
1132	floatPtr.au8Feature[3] = 0;
1133	floatPtr.au8Feature[4] = 0;
1134	floatPtr.u8Checksum = pcbiosChecksum((uint8_t*)&floatPtr, 16);
1135	PDMDevHlpPhysWrite (pDevIns, 0x9fff0, &floatPtr, 16);
1136	}
1137
1138
1139	/**
1140	* Reset notification.
1141	*
1142	* @returns VBox status.
1143	* @param pDevIns The device instance data.
1144	*/
1145	static DECLCALLBACK(void) pcbiosReset(PPDMDEVINS pDevIns)
1146	{
1147	PDEVPCBIOS pThis = PDMINS_2_DATA(pDevIns, PDEVPCBIOS);
1148	LogFlow(("pcbiosReset:\n"));
1149
1150	if (pThis->u8IOAPIC)
1151	pcbiosPlantMPStable(pDevIns, pThis->au8DMIPage + VBOX_DMI_TABLE_SIZE);
1152	}
1153
1154
1155	/**
1156	* Destruct a device instance.
1157	*
1158	* Most VM resources are freed by the VM. This callback is provided so that any non-VM
1159	* resources can be freed correctly.
1160	*
1161	* @param pDevIns The device instance data.
1162	*/
1163	static DECLCALLBACK(int) pcbiosDestruct(PPDMDEVINS pDevIns)
1164	{
1165	PDEVPCBIOS pThis = PDMINS_2_DATA(pDevIns, PDEVPCBIOS);
1166	LogFlow(("pcbiosDestruct:\n"));
1167
1168	/*
1169	* Free MM heap pointers.
1170	*/
1171	if (pThis->pu8PcBios)
1172	{
1173	MMR3HeapFree(pThis->pu8PcBios);
1174	pThis->pu8PcBios = NULL;
1175	}
1176
1177	if (pThis->pszPcBiosFile)
1178	{
1179	MMR3HeapFree(pThis->pszPcBiosFile);
1180	pThis->pszPcBiosFile = NULL;
1181	}
1182
1183	if (pThis->pu8LanBoot)
1184	{
1185	MMR3HeapFree(pThis->pu8LanBoot);
1186	pThis->pu8LanBoot = NULL;
1187	}
1188
1189	if (pThis->pszLanBootFile)
1190	{
1191	MMR3HeapFree(pThis->pszLanBootFile);
1192	pThis->pszLanBootFile = NULL;
1193	}
1194
1195	return VINF_SUCCESS;
1196	}
1197
1198
1199	/**
1200	* Convert config value to DEVPCBIOSBOOT.
1201	*
1202	* @returns VBox status code.
1203	* @param pCfgHandle Configuration handle.
1204	* @param pszParam The name of the value to read.
1205	* @param penmBoot Where to store the boot method.
1206	*/
1207	static int pcbiosBootFromCfg(PPDMDEVINS pDevIns, PCFGMNODE pCfgHandle, const char pszParam, DEVPCBIOSBOOT penmBoot)
1208	{
1209	char *psz;
1210	int rc = CFGMR3QueryStringAlloc(pCfgHandle, pszParam, &psz);
1211	if (RT_FAILURE(rc))
1212	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
1213	N_("Configuration error: Querying \"%s\" as a string failed"),
1214	pszParam);
1215	if (!strcmp(psz, "DVD") \|\| !strcmp(psz, "CDROM"))
1216	*penmBoot = DEVPCBIOSBOOT_DVD;
1217	else if (!strcmp(psz, "IDE"))
1218	*penmBoot = DEVPCBIOSBOOT_HD;
1219	else if (!strcmp(psz, "FLOPPY"))
1220	*penmBoot = DEVPCBIOSBOOT_FLOPPY;
1221	else if (!strcmp(psz, "LAN"))
1222	*penmBoot = DEVPCBIOSBOOT_LAN;
1223	else if (!strcmp(psz, "NONE"))
1224	*penmBoot = DEVPCBIOSBOOT_NONE;
1225	else
1226	{
1227	PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
1228	N_("Configuration error: The \"%s\" value \"%s\" is unknown"),
1229	pszParam, psz);
1230	rc = VERR_INTERNAL_ERROR;
1231	}
1232	MMR3HeapFree(psz);
1233	return rc;
1234	}
1235
1236	/**
1237	* Construct a device instance for a VM.
1238	*
1239	* @returns VBox status.
1240	* @param pDevIns The device instance data.
1241	* If the registration structure is needed, pDevIns->pDevReg points to it.
1242	* @param iInstance Instance number. Use this to figure out which registers and such to use.
1243	* The device number is also found in pDevIns->iInstance, but since it's
1244	* likely to be freqently used PDM passes it as parameter.
1245	* @param pCfgHandle Configuration node handle for the device. Use this to obtain the configuration
1246	* of the device instance. It's also found in pDevIns->pCfgHandle, but like
1247	* iInstance it's expected to be used a bit in this function.
1248	*/
1249	static DECLCALLBACK(int) pcbiosConstruct(PPDMDEVINS pDevIns, int iInstance, PCFGMNODE pCfgHandle)
1250	{
1251	unsigned i;
1252	PDEVPCBIOS pThis = PDMINS_2_DATA(pDevIns, PDEVPCBIOS);
1253	int rc;
1254	int cb;
1255
1256	Assert(iInstance == 0);
1257
1258	/*
1259	* Validate configuration.
1260	*/
1261	if (!CFGMR3AreValuesValid(pCfgHandle,
1262	"BootDevice0\0"
1263	"BootDevice1\0"
1264	"BootDevice2\0"
1265	"BootDevice3\0"
1266	"RamSize\0"
1267	"HardDiskDevice\0"
1268	"SataHardDiskDevice\0"
1269	"SataPrimaryMasterLUN\0"
1270	"SataPrimarySlaveLUN\0"
1271	"SataSecondaryMasterLUN\0"
1272	"SataSecondarySlaveLUN\0"
1273	"FloppyDevice\0"
1274	"DelayBoot\0"
1275	"BiosRom\0"
1276	"LanBootRom\0"
1277	"PXEDebug\0"
1278	"UUID\0"
1279	"IOAPIC\0"
1280	"DmiBIOSVendor\0"
1281	"DmiBIOSVersion\0"
1282	"DmiBIOSReleaseDate\0"
1283	"DmiBIOSReleaseMajor\0"
1284	"DmiBIOSReleaseMinor\0"
1285	"DmiBIOSFirmwareMajor\0"
1286	"DmiBIOSFirmwareMinor\0"
1287	"DmiSystemFamily\0"
1288	"DmiSystemProduct\0"
1289	"DmiSystemSerial\0"
1290	"DmiSystemUuid\0"
1291	"DmiSystemVendor\0"
1292	"DmiSystemVersion\0"))
1293	return PDMDEV_SET_ERROR(pDevIns, VERR_PDM_DEVINS_UNKNOWN_CFG_VALUES,
1294	N_("Invalid configuraton for device pcbios device"));
1295
1296	/*
1297	* Init the data.
1298	*/
1299	rc = CFGMR3QueryU64(pCfgHandle, "RamSize", &pThis->cbRam);
1300	if (RT_FAILURE(rc))
1301	return PDMDEV_SET_ERROR(pDevIns, rc,
1302	N_("Configuration error: Querying \"RamSize\" as integer failed"));
1303
1304	rc = CFGMR3QueryU8Def(pCfgHandle, "IOAPIC", &pThis->u8IOAPIC, 1);
1305	if (RT_FAILURE (rc))
1306	return PDMDEV_SET_ERROR(pDevIns, rc,
1307	N_("Configuration error: Failed to read \"IOAPIC\""));
1308
1309	static const char * const s_apszBootDevices[] = { "BootDevice0", "BootDevice1", "BootDevice2", "BootDevice3" };
1310	Assert(RT_ELEMENTS(s_apszBootDevices) == RT_ELEMENTS(pThis->aenmBootDevice));
1311	for (i = 0; i < RT_ELEMENTS(pThis->aenmBootDevice); i++)
1312	{
1313	rc = pcbiosBootFromCfg(pDevIns, pCfgHandle, s_apszBootDevices[i], &pThis->aenmBootDevice[i]);
1314	if (RT_FAILURE(rc))
1315	return rc;
1316	}
1317
1318	rc = CFGMR3QueryStringAlloc(pCfgHandle, "HardDiskDevice", &pThis->pszHDDevice);
1319	if (RT_FAILURE(rc))
1320	return PDMDEV_SET_ERROR(pDevIns, rc,
1321	N_("Configuration error: Querying \"HardDiskDevice\" as a string failed"));
1322
1323	rc = CFGMR3QueryStringAlloc(pCfgHandle, "FloppyDevice", &pThis->pszFDDevice);
1324	if (RT_FAILURE(rc))
1325	return PDMDEV_SET_ERROR(pDevIns, rc,
1326	N_("Configuration error: Querying \"FloppyDevice\" as a string failed"));
1327
1328	rc = CFGMR3QueryStringAlloc(pCfgHandle, "SataHardDiskDevice", &pThis->pszSataDevice);
1329	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1330	pThis->pszSataDevice = NULL;
1331	else if (RT_FAILURE(rc))
1332	return PDMDEV_SET_ERROR(pDevIns, rc,
1333	N_("Configuration error: Querying \"SataHardDiskDevice\" as a string failed"));
1334
1335	if (pThis->pszSataDevice)
1336	{
1337	static const char * const s_apszSataDisks[] =
1338	{ "SataPrimaryMasterLUN", "SataPrimarySlaveLUN", "SataSecondaryMasterLUN", "SataSecondarySlaveLUN" };
1339	Assert(RT_ELEMENTS(s_apszSataDisks) == RT_ELEMENTS(pThis->iSataHDLUN));
1340	for (i = 0; i < RT_ELEMENTS(pThis->iSataHDLUN); i++)
1341	{
1342	rc = CFGMR3QueryU32(pCfgHandle, s_apszSataDisks[i], &pThis->iSataHDLUN[i]);
1343	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1344	pThis->iSataHDLUN[i] = i;
1345	else if (RT_FAILURE(rc))
1346	return PDMDevHlpVMSetError(pDevIns, rc, RT_SRC_POS,
1347	N_("Configuration error: Querying \"%s\" as a string failed"), s_apszSataDisks);
1348	}
1349	}
1350	/*
1351	* Register I/O Ports and PC BIOS.
1352	*/
1353	rc = PDMDevHlpIOPortRegister(pDevIns, 0x400, 4, NULL, pcbiosIOPortWrite, pcbiosIOPortRead,
1354	NULL, NULL, "Bochs PC BIOS - Panic & Debug");
1355	if (RT_FAILURE(rc))
1356	return rc;
1357	rc = PDMDevHlpIOPortRegister(pDevIns, 0x8900, 1, NULL, pcbiosIOPortWrite, pcbiosIOPortRead,
1358	NULL, NULL, "Bochs PC BIOS - Shutdown");
1359	if (RT_FAILURE(rc))
1360	return rc;
1361
1362	/*
1363	* Query the machine's UUID for SMBIOS/DMI use.
1364	*/
1365	RTUUID uuid;
1366	rc = CFGMR3QueryBytes(pCfgHandle, "UUID", &uuid, sizeof(uuid));
1367	if (RT_FAILURE(rc))
1368	return PDMDEV_SET_ERROR(pDevIns, rc,
1369	N_("Configuration error: Querying \"UUID\" failed"));
1370
1371
1372	/* Convert the UUID to network byte order. Not entirely straightforward as parts are MSB already... */
1373	uuid.Gen.u32TimeLow = RT_H2BE_U32(uuid.Gen.u32TimeLow);
1374	uuid.Gen.u16TimeMid = RT_H2BE_U16(uuid.Gen.u16TimeMid);
1375	uuid.Gen.u16TimeHiAndVersion = RT_H2BE_U16(uuid.Gen.u16TimeHiAndVersion);
1376	rc = pcbiosPlantDMITable(pDevIns, pThis->au8DMIPage, VBOX_DMI_TABLE_SIZE, &uuid, pCfgHandle);
1377	if (RT_FAILURE(rc))
1378	return rc;
1379	if (pThis->u8IOAPIC)
1380	pcbiosPlantMPStable(pDevIns, pThis->au8DMIPage + VBOX_DMI_TABLE_SIZE);
1381
1382	rc = PDMDevHlpROMRegister(pDevIns, VBOX_DMI_TABLE_BASE, _4K, pThis->au8DMIPage, false /* fShadow */, "DMI tables");
1383	if (RT_FAILURE(rc))
1384	return rc;
1385
1386	/*
1387	* Read the PXE debug logging option.
1388	*/
1389	rc = CFGMR3QueryU8Def(pCfgHandle, "PXEDebug", &pThis->u8PXEDebug, false);
1390	if (RT_FAILURE(rc))
1391	return PDMDEV_SET_ERROR(pDevIns, rc,
1392	N_("Configuration error: Querying \"PXEDebug\" as integer failed"));
1393
1394	/*
1395	* Get the system BIOS ROM file name.
1396	*/
1397	rc = CFGMR3QueryStringAlloc(pCfgHandle, "BiosRom", &pThis->pszPcBiosFile);
1398	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1399	{
1400	pThis->pszPcBiosFile = NULL;
1401	rc = VINF_SUCCESS;
1402	}
1403	else if (RT_FAILURE(rc))
1404	return PDMDEV_SET_ERROR(pDevIns, rc,
1405	N_("Configuration error: Querying \"BiosRom\" as a string failed"));
1406	else if (!*pThis->pszPcBiosFile)
1407	{
1408	MMR3HeapFree(pThis->pszPcBiosFile);
1409	pThis->pszPcBiosFile = NULL;
1410	}
1411
1412	const uint8_t *pu8PcBiosBinary = NULL;
1413	uint64_t cbPcBiosBinary;
1414	/*
1415	* Determine the system BIOS ROM size, open specified ROM file in the process.
1416	*/
1417	RTFILE FilePcBios = NIL_RTFILE;
1418	if (pThis->pszPcBiosFile)
1419	{
1420	rc = RTFileOpen(&FilePcBios, pThis->pszPcBiosFile,
1421	RTFILE_O_READ \| RTFILE_O_OPEN \| RTFILE_O_DENY_WRITE);
1422	if (RT_SUCCESS(rc))
1423	{
1424	rc = RTFileGetSize(FilePcBios, &pThis->cbPcBios);
1425	if (RT_SUCCESS(rc))
1426	{
1427	/* The following checks should be in sync the AssertReleaseMsg's below. */
1428	if ( RT_ALIGN(pThis->cbPcBios, _64K) != pThis->cbPcBios
1429	\|\| pThis->cbPcBios > 32 * _64K
1430	\|\| pThis->cbPcBios < _64K)
1431	rc = VERR_TOO_MUCH_DATA;
1432	}
1433	}
1434	if (RT_FAILURE(rc))
1435	{
1436	/*
1437	* In case of failure simply fall back to the built-in BIOS ROM.
1438	*/
1439	Log(("pcbiosConstruct: Failed to open system BIOS ROM file '%s', rc=%Rrc!\n", pThis->pszPcBiosFile, rc));
1440	RTFileClose(FilePcBios);
1441	FilePcBios = NIL_RTFILE;
1442	MMR3HeapFree(pThis->pszPcBiosFile);
1443	pThis->pszPcBiosFile = NULL;
1444	}
1445	}
1446
1447	/*
1448	* Attempt to get the system BIOS ROM data from file.
1449	*/
1450	if (pThis->pszPcBiosFile)
1451	{
1452	/*
1453	* Allocate buffer for the system BIOS ROM data.
1454	*/
1455	pThis->pu8PcBios = (uint8_t *)PDMDevHlpMMHeapAlloc(pDevIns, pThis->cbPcBios);
1456	if (pThis->pu8PcBios)
1457	{
1458	rc = RTFileRead(FilePcBios, pThis->pu8PcBios, pThis->cbPcBios, NULL);
1459	if (RT_FAILURE(rc))
1460	{
1461	AssertMsgFailed(("RTFileRead(,,%d,NULL) -> %Rrc\n", pThis->cbPcBios, rc));
1462	MMR3HeapFree(pThis->pu8PcBios);
1463	pThis->pu8PcBios = NULL;
1464	}
1465	rc = VINF_SUCCESS;
1466	}
1467	else
1468	rc = VERR_NO_MEMORY;
1469	}
1470	else
1471	pThis->pu8PcBios = NULL;
1472
1473	/* cleanup */
1474	if (FilePcBios != NIL_RTFILE)
1475	RTFileClose(FilePcBios);
1476
1477	/* If we were unable to get the data from file for whatever reason, fall
1478	* back to the built-in ROM image.
1479	*/
1480	if (pThis->pu8PcBios == NULL)
1481	{
1482	pu8PcBiosBinary = g_abPcBiosBinary;
1483	cbPcBiosBinary = g_cbPcBiosBinary;
1484	}
1485	else
1486	{
1487	pu8PcBiosBinary = pThis->pu8PcBios;
1488	cbPcBiosBinary = pThis->cbPcBios;
1489	}
1490
1491	/*
1492	* Map the BIOS into memory.
1493	* There are two mappings:
1494	* 1. 0x000e0000 to 0x000fffff contains the last 128 kb of the bios.
1495	* The bios code might be 64 kb in size, and will then start at 0xf0000.
1496	* 2. 0xfffxxxxx to 0xffffffff contains the entire bios.
1497	*/
1498	AssertReleaseMsg(cbPcBiosBinary >= _64K, ("cbPcBiosBinary=%#x\n", cbPcBiosBinary));
1499	AssertReleaseMsg(RT_ALIGN_Z(cbPcBiosBinary, _64K) == cbPcBiosBinary,
1500	("cbPcBiosBinary=%#x\n", cbPcBiosBinary));
1501	cb = RT_MIN(cbPcBiosBinary, 128 * _1K); /* Effectively either 64 or 128K. */
1502	rc = PDMDevHlpROMRegister(pDevIns, 0x00100000 - cb, cb, &pu8PcBiosBinary[cbPcBiosBinary - cb],
1503	false /* fShadow */, "PC BIOS - 0xfffff");
1504	if (RT_FAILURE(rc))
1505	return rc;
1506	rc = PDMDevHlpROMRegister(pDevIns, (uint32_t)-(int32_t)cbPcBiosBinary, cbPcBiosBinary, pu8PcBiosBinary,
1507	false /* fShadow */, "PC BIOS - 0xffffffff");
1508	if (RT_FAILURE(rc))
1509	return rc;
1510
1511	#ifndef VBOX_OSE
1512	/*
1513	* Map the VMI BIOS into memory.
1514	*/
1515	AssertReleaseMsg(g_cbVmiBiosBinary == _4K, ("cbVmiBiosBinary=%#x\n", g_cbVmiBiosBinary));
1516	rc = PDMDevHlpROMRegister(pDevIns, VBOX_VMI_BIOS_BASE, g_cbVmiBiosBinary, g_abVmiBiosBinary, false, "VMI BIOS");
1517	if (RT_FAILURE(rc))
1518	return rc;
1519	#endif
1520
1521	/*
1522	* Call reset to set values and stuff.
1523	*/
1524	pcbiosReset(pDevIns);
1525
1526	/*
1527	* Get the LAN boot ROM file name.
1528	*/
1529	rc = CFGMR3QueryStringAlloc(pCfgHandle, "LanBootRom", &pThis->pszLanBootFile);
1530	if (rc == VERR_CFGM_VALUE_NOT_FOUND)
1531	{
1532	pThis->pszLanBootFile = NULL;
1533	rc = VINF_SUCCESS;
1534	}
1535	else if (RT_FAILURE(rc))
1536	return PDMDEV_SET_ERROR(pDevIns, rc,
1537	N_("Configuration error: Querying \"LanBootRom\" as a string failed"));
1538	else if (!*pThis->pszLanBootFile)
1539	{
1540	MMR3HeapFree(pThis->pszLanBootFile);
1541	pThis->pszLanBootFile = NULL;
1542	}
1543
1544	uint64_t cbFileLanBoot;
1545	const uint8_t *pu8LanBootBinary = NULL;
1546	uint64_t cbLanBootBinary;
1547
1548	/*
1549	* Determine the LAN boot ROM size, open specified ROM file in the process.
1550	*/
1551	RTFILE FileLanBoot = NIL_RTFILE;
1552	if (pThis->pszLanBootFile)
1553	{
1554	rc = RTFileOpen(&FileLanBoot, pThis->pszLanBootFile,
1555	RTFILE_O_READ \| RTFILE_O_OPEN \| RTFILE_O_DENY_WRITE);
1556	if (RT_SUCCESS(rc))
1557	{
1558	rc = RTFileGetSize(FileLanBoot, &cbFileLanBoot);
1559	if (RT_SUCCESS(rc))
1560	{
1561	if ( RT_ALIGN(cbFileLanBoot, _4K) != cbFileLanBoot
1562	\|\| cbFileLanBoot > _64K)
1563	rc = VERR_TOO_MUCH_DATA;
1564	}
1565	}
1566	if (RT_FAILURE(rc))
1567	{
1568	/*
1569	* Ignore failure and fall back to the built-in LAN boot ROM.
1570	*/
1571	Log(("pcbiosConstruct: Failed to open LAN boot ROM file '%s', rc=%Rrc!\n", pThis->pszLanBootFile, rc));
1572	RTFileClose(FileLanBoot);
1573	FileLanBoot = NIL_RTFILE;
1574	MMR3HeapFree(pThis->pszLanBootFile);
1575	pThis->pszLanBootFile = NULL;
1576	}
1577	}
1578
1579	/*
1580	* Get the LAN boot ROM data.
1581	*/
1582	if (pThis->pszLanBootFile)
1583	{
1584	/*
1585	* Allocate buffer for the LAN boot ROM data.
1586	*/
1587	pThis->pu8LanBoot = (uint8_t *)PDMDevHlpMMHeapAlloc(pDevIns, cbFileLanBoot);
1588	if (pThis->pu8LanBoot)
1589	{
1590	rc = RTFileRead(FileLanBoot, pThis->pu8LanBoot, cbFileLanBoot, NULL);
1591	if (RT_FAILURE(rc))
1592	{
1593	AssertMsgFailed(("RTFileRead(,,%d,NULL) -> %Rrc\n", cbFileLanBoot, rc));
1594	MMR3HeapFree(pThis->pu8LanBoot);
1595	pThis->pu8LanBoot = NULL;
1596	}
1597	rc = VINF_SUCCESS;
1598	}
1599	else
1600	rc = VERR_NO_MEMORY;
1601	}
1602	else
1603	pThis->pu8LanBoot = NULL;
1604
1605	/* cleanup */
1606	if (FileLanBoot != NIL_RTFILE)
1607	RTFileClose(FileLanBoot);
1608
1609	/* If we were unable to get the data from file for whatever reason, fall
1610	* back to the built-in LAN boot ROM image.
1611	*/
1612	if (pThis->pu8LanBoot == NULL)
1613	{
1614	pu8LanBootBinary = g_abNetBiosBinary;
1615	cbLanBootBinary = g_cbNetBiosBinary;
1616	}
1617	else
1618	{
1619	pu8LanBootBinary = pThis->pu8LanBoot;
1620	cbLanBootBinary = cbFileLanBoot;
1621	}
1622
1623	/*
1624	* Map the Network Boot ROM into memory.
1625	* Currently there is a fixed mapping: 0x000c8000 to 0x000cffff contains
1626	* the (up to) 32 kb ROM image.
1627	*/
1628	if (pu8LanBootBinary)
1629	rc = PDMDevHlpROMRegister(pDevIns, VBOX_LANBOOT_SEG << 4, cbLanBootBinary, pu8LanBootBinary,
1630	true /* fShadow */, "Net Boot ROM");
1631
1632	rc = CFGMR3QueryU8Def(pCfgHandle, "DelayBoot", &pThis->uBootDelay, 0);
1633	if (RT_FAILURE(rc))
1634	return PDMDEV_SET_ERROR(pDevIns, rc,
1635	N_("Configuration error: Querying \"DelayBoot\" as integer failed"));
1636	if (pThis->uBootDelay > 15)
1637	pThis->uBootDelay = 15;
1638
1639	return rc;
1640	}
1641
1642
1643	/**
1644	* The device registration structure.
1645	*/
1646	const PDMDEVREG g_DevicePcBios =
1647	{
1648	/* u32Version */
1649	PDM_DEVREG_VERSION,
1650	/* szDeviceName */
1651	"pcbios",
1652	/* szGCMod */
1653	"",
1654	/* szR0Mod */
1655	"",
1656	/* pszDescription */
1657	"PC BIOS Device",
1658	/* fFlags */
1659	PDM_DEVREG_FLAGS_HOST_BITS_DEFAULT \| PDM_DEVREG_FLAGS_GUEST_BITS_32_64,
1660	/* fClass */
1661	PDM_DEVREG_CLASS_ARCH_BIOS,
1662	/* cMaxInstances */
1663	1,
1664	/* cbInstance */
1665	sizeof(DEVPCBIOS),
1666	/* pfnConstruct */
1667	pcbiosConstruct,
1668	/* pfnDestruct */
1669	pcbiosDestruct,
1670	/* pfnRelocate */
1671	NULL,
1672	/* pfnIOCtl */
1673	NULL,
1674	/* pfnPowerOn */
1675	NULL,
1676	/* pfnReset */
1677	pcbiosReset,
1678	/* pfnSuspend */
1679	NULL,
1680	/* pfnResume */
1681	NULL,
1682	/* pfnAttach */
1683	NULL,
1684	/* pfnDetach */
1685	NULL,
1686	/* pfnQueryInterface. */
1687	NULL,
1688	/* pfnInitComplete. */
1689	pcbiosInitComplete
1690	};
1691

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source: vbox/trunk/src/VBox/Devices/PC/DevPcBios.cpp@ 11633

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