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Kevin O'Connorf13b0082008-08-17 11:26:42 -04001// Code to load disk image and start system boot.
Kevin O'Connorf076a3e2008-02-25 22:25:15 -05002//
Kevin O'Connorcadaf0e2010-07-26 23:47:26 -04003// Copyright (C) 2008-2010 Kevin O'Connor <kevin@koconnor.net>
Kevin O'Connorf076a3e2008-02-25 22:25:15 -05004// Copyright (C) 2002 MandrakeSoft S.A.
5//
Kevin O'Connorb1b7c2a2009-01-15 20:52:58 -05006// This file may be distributed under the terms of the GNU LGPLv3 license.
Kevin O'Connorf076a3e2008-02-25 22:25:15 -05007
Kevin O'Connor10ad7992009-10-24 11:06:08 -04008#include "util.h" // dprintf
Kevin O'Connor38fcbfe2008-02-25 22:30:47 -05009#include "config.h" // CONFIG_*
Kevin O'Connor180a9592008-03-04 22:50:53 -050010#include "disk.h" // cdrom_boot
Kevin O'Connor9521e262008-07-04 13:04:29 -040011#include "bregs.h" // struct bregs
Kevin O'Connorf13a1802010-12-29 11:52:33 -050012#include "boot.h" // func defs
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -050013#include "cmos.h" // inb_cmos
Kevin O'Connorf13a1802010-12-29 11:52:33 -050014#include "paravirt.h" // romfile_loadfile
Kevin O'Connor8bf55032011-01-01 11:00:42 -050015#include "pci.h" //pci_bdf_to_*
Kevin O'Connorea274782012-03-08 07:49:09 -050016#include "usb.h" // struct usbdevice_s
Kevin O'Connorc659fde2008-12-28 23:43:20 -050017
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -050018
19/****************************************************************
Kevin O'Connor031ef552010-12-27 19:26:57 -050020 * Boot priority ordering
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -050021 ****************************************************************/
22
Kevin O'Connor3da2c1c2010-12-29 11:37:41 -050023static char **Bootorder;
24static int BootorderCount;
25
Kevin O'Connord1a17462010-12-24 11:17:03 -050026static void
27loadBootOrder(void)
28{
Kevin O'Connor49bf57b2011-05-10 22:08:30 -040029 if (!CONFIG_BOOTORDER)
30 return;
31
Kevin O'Connord1a17462010-12-24 11:17:03 -050032 char *f = romfile_loadfile("bootorder", NULL);
33 if (!f)
34 return;
35
Kevin O'Connor8bf55032011-01-01 11:00:42 -050036 int i = 0;
Kevin O'Connor3da2c1c2010-12-29 11:37:41 -050037 BootorderCount = 1;
Kevin O'Connord1a17462010-12-24 11:17:03 -050038 while (f[i]) {
39 if (f[i] == '\n')
Kevin O'Connor3da2c1c2010-12-29 11:37:41 -050040 BootorderCount++;
Kevin O'Connord1a17462010-12-24 11:17:03 -050041 i++;
42 }
Kevin O'Connor3da2c1c2010-12-29 11:37:41 -050043 Bootorder = malloc_tmphigh(BootorderCount*sizeof(char*));
44 if (!Bootorder) {
Kevin O'Connord1a17462010-12-24 11:17:03 -050045 warn_noalloc();
46 free(f);
Kevin O'Connor4d0c5922011-01-26 21:04:01 -050047 BootorderCount = 0;
Kevin O'Connord1a17462010-12-24 11:17:03 -050048 return;
49 }
50
51 dprintf(3, "boot order:\n");
52 i = 0;
53 do {
Kevin O'Connor3da2c1c2010-12-29 11:37:41 -050054 Bootorder[i] = f;
Kevin O'Connord1a17462010-12-24 11:17:03 -050055 f = strchr(f, '\n');
Kevin O'Connor8bf55032011-01-01 11:00:42 -050056 if (f)
57 *(f++) = '\0';
Kevin O'Connor9e881a32011-01-08 12:06:54 -050058 nullTrailingSpace(Bootorder[i]);
Kevin O'Connor8bf55032011-01-01 11:00:42 -050059 dprintf(3, "%d: %s\n", i+1, Bootorder[i]);
60 i++;
61 } while (f);
62}
63
64// See if 'str' starts with 'glob' - if glob contains an '*' character
65// it will match any number of characters in str that aren't a '/' or
66// the next glob character.
67static char *
68glob_prefix(const char *glob, const char *str)
69{
70 for (;;) {
71 if (!*glob && (!*str || *str == '/'))
72 return (char*)str;
73 if (*glob == '*') {
74 if (!*str || *str == '/' || *str == glob[1])
75 glob++;
76 else
77 str++;
78 continue;
Kevin O'Connord1a17462010-12-24 11:17:03 -050079 }
Kevin O'Connor8bf55032011-01-01 11:00:42 -050080 if (*glob != *str)
81 return NULL;
82 glob++;
83 str++;
84 }
85}
86
87// Search the bootorder list for the given glob pattern.
88static int
89find_prio(const char *glob)
90{
91 dprintf(1, "Searching bootorder for: %s\n", glob);
92 int i;
93 for (i = 0; i < BootorderCount; i++)
94 if (glob_prefix(glob, Bootorder[i]))
95 return i+1;
96 return -1;
97}
98
99#define FW_PCI_DOMAIN "/pci@i0cf8"
100
Kevin O'Connor659c99d2011-06-20 23:29:15 -0400101static char *
102build_pci_path(char *buf, int max, const char *devname, struct pci_device *pci)
103{
Kevin O'Connor8bf55032011-01-01 11:00:42 -0500104 // Build the string path of a bdf - for example: /pci@i0cf8/isa@1,2
105 char *p = buf;
Kevin O'Connor659c99d2011-06-20 23:29:15 -0400106 if (pci->parent) {
107 p = build_pci_path(p, max, "pci-bridge", pci->parent);
Kevin O'Connord08eb9c2011-01-10 00:48:45 -0500108 } else {
Kevin O'Connor659c99d2011-06-20 23:29:15 -0400109 if (pci->rootbus)
110 p += snprintf(p, max, "/pci-root@%x", pci->rootbus);
Kevin O'Connord08eb9c2011-01-10 00:48:45 -0500111 p += snprintf(p, buf+max-p, "%s", FW_PCI_DOMAIN);
112 }
Kevin O'Connor8bf55032011-01-01 11:00:42 -0500113
Kevin O'Connor659c99d2011-06-20 23:29:15 -0400114 int dev = pci_bdf_to_dev(pci->bdf), fn = pci_bdf_to_fn(pci->bdf);
Kevin O'Connord08eb9c2011-01-10 00:48:45 -0500115 p += snprintf(p, buf+max-p, "/%s@%x", devname, dev);
Kevin O'Connor8bf55032011-01-01 11:00:42 -0500116 if (fn)
117 p += snprintf(p, buf+max-p, ",%x", fn);
118 return p;
Kevin O'Connord1a17462010-12-24 11:17:03 -0500119}
120
Kevin O'Connordc3a7d62011-07-09 14:33:56 -0400121int bootprio_find_pci_device(struct pci_device *pci)
Kevin O'Connor031ef552010-12-27 19:26:57 -0500122{
Kevin O'Connor49bf57b2011-05-10 22:08:30 -0400123 if (!CONFIG_BOOTORDER)
124 return -1;
Kevin O'Connor8bf55032011-01-01 11:00:42 -0500125 // Find pci device - for example: /pci@i0cf8/ethernet@5
126 char desc[256];
Kevin O'Connordc3a7d62011-07-09 14:33:56 -0400127 build_pci_path(desc, sizeof(desc), "*", pci);
Kevin O'Connor8bf55032011-01-01 11:00:42 -0500128 return find_prio(desc);
Kevin O'Connor031ef552010-12-27 19:26:57 -0500129}
130
Paolo Bonzinic5c488f2012-02-27 17:22:23 +0100131int bootprio_find_scsi_device(struct pci_device *pci, int target, int lun)
132{
133 if (!CONFIG_BOOTORDER)
134 return -1;
135 if (!pci)
136 // support only pci machine for now
137 return -1;
138 // Find scsi drive - for example: /pci@i0cf8/scsi@5/channel@0/disk@1,0
139 char desc[256], *p;
140 p = build_pci_path(desc, sizeof(desc), "*", pci);
141 snprintf(p, desc+sizeof(desc)-p, "/*@0/*@%d,%d", target, lun);
142 return find_prio(desc);
143}
144
Kevin O'Connor95b2e0c2011-07-09 14:42:11 -0400145int bootprio_find_ata_device(struct pci_device *pci, int chanid, int slave)
Kevin O'Connor031ef552010-12-27 19:26:57 -0500146{
Kevin O'Connor49bf57b2011-05-10 22:08:30 -0400147 if (!CONFIG_BOOTORDER)
148 return -1;
Kevin O'Connor95b2e0c2011-07-09 14:42:11 -0400149 if (!pci)
Kevin O'Connor8bf55032011-01-01 11:00:42 -0500150 // support only pci machine for now
151 return -1;
152 // Find ata drive - for example: /pci@i0cf8/ide@1,1/drive@1/disk@0
153 char desc[256], *p;
Kevin O'Connor95b2e0c2011-07-09 14:42:11 -0400154 p = build_pci_path(desc, sizeof(desc), "*", pci);
Kevin O'Connor8bf55032011-01-01 11:00:42 -0500155 snprintf(p, desc+sizeof(desc)-p, "/drive@%x/disk@%x", chanid, slave);
156 return find_prio(desc);
Kevin O'Connor031ef552010-12-27 19:26:57 -0500157}
158
Kevin O'Connor03e589c2011-07-09 14:35:37 -0400159int bootprio_find_fdc_device(struct pci_device *pci, int port, int fdid)
Kevin O'Connor031ef552010-12-27 19:26:57 -0500160{
Kevin O'Connor49bf57b2011-05-10 22:08:30 -0400161 if (!CONFIG_BOOTORDER)
162 return -1;
Kevin O'Connor03e589c2011-07-09 14:35:37 -0400163 if (!pci)
Kevin O'Connor8bf55032011-01-01 11:00:42 -0500164 // support only pci machine for now
165 return -1;
166 // Find floppy - for example: /pci@i0cf8/isa@1/fdc@03f1/floppy@0
167 char desc[256], *p;
Kevin O'Connor03e589c2011-07-09 14:35:37 -0400168 p = build_pci_path(desc, sizeof(desc), "isa", pci);
Kevin O'Connor8bf55032011-01-01 11:00:42 -0500169 snprintf(p, desc+sizeof(desc)-p, "/fdc@%04x/floppy@%x", port, fdid);
170 return find_prio(desc);
Kevin O'Connor031ef552010-12-27 19:26:57 -0500171}
172
Kevin O'Connorfce91892011-07-09 14:47:47 -0400173int bootprio_find_pci_rom(struct pci_device *pci, int instance)
Kevin O'Connor031ef552010-12-27 19:26:57 -0500174{
Kevin O'Connor49bf57b2011-05-10 22:08:30 -0400175 if (!CONFIG_BOOTORDER)
176 return -1;
Kevin O'Connor8bf55032011-01-01 11:00:42 -0500177 // Find pci rom - for example: /pci@i0cf8/scsi@3:rom2
178 char desc[256], *p;
Kevin O'Connorfce91892011-07-09 14:47:47 -0400179 p = build_pci_path(desc, sizeof(desc), "*", pci);
Kevin O'Connor8bf55032011-01-01 11:00:42 -0500180 if (instance)
181 snprintf(p, desc+sizeof(desc)-p, ":rom%d", instance);
182 return find_prio(desc);
Kevin O'Connor031ef552010-12-27 19:26:57 -0500183}
184
185int bootprio_find_named_rom(const char *name, int instance)
186{
Kevin O'Connor49bf57b2011-05-10 22:08:30 -0400187 if (!CONFIG_BOOTORDER)
188 return -1;
Kevin O'Connor8bf55032011-01-01 11:00:42 -0500189 // Find named rom - for example: /rom@genroms/linuxboot.bin
190 char desc[256], *p;
191 p = desc + snprintf(desc, sizeof(desc), "/rom@%s", name);
192 if (instance)
193 snprintf(p, desc+sizeof(desc)-p, ":rom%d", instance);
194 return find_prio(desc);
Kevin O'Connor031ef552010-12-27 19:26:57 -0500195}
196
Kevin O'Connorea274782012-03-08 07:49:09 -0500197static char *
198build_usb_path(char *buf, int max, struct usbhub_s *hub)
199{
200 if (!hub->usbdev)
201 // Root hub - nothing to add.
202 return buf;
203 char *p = build_usb_path(buf, max, hub->usbdev->hub);
204 p += snprintf(p, buf+max-p, "/hub@%x", hub->usbdev->port+1);
205 return p;
206}
207
208int bootprio_find_usb(struct usbdevice_s *usbdev)
Kevin O'Connorc2002a12010-12-31 14:38:10 -0500209{
Kevin O'Connor49bf57b2011-05-10 22:08:30 -0400210 if (!CONFIG_BOOTORDER)
211 return -1;
Kevin O'Connorc2002a12010-12-31 14:38:10 -0500212 // Find usb - for example: /pci@i0cf8/usb@1,2/hub@1/network@0/ethernet@0
Kevin O'Connorc2002a12010-12-31 14:38:10 -0500213 char desc[256], *p;
Kevin O'Connorea274782012-03-08 07:49:09 -0500214 p = build_pci_path(desc, sizeof(desc), "usb", usbdev->hub->cntl->pci);
215 p = build_usb_path(p, desc+sizeof(desc)-p, usbdev->hub);
216 snprintf(p, desc+sizeof(desc)-p, "/*@%x", usbdev->port+1);
Kevin O'Connorc2002a12010-12-31 14:38:10 -0500217 return find_prio(desc);
218}
219
Kevin O'Connor031ef552010-12-27 19:26:57 -0500220
221/****************************************************************
222 * Boot setup
223 ****************************************************************/
224
Kevin O'Connorbaaadb62010-12-29 11:18:04 -0500225static int CheckFloppySig = 1;
226
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500227#define DEFAULT_PRIO 9999
228
229static int DefaultFloppyPrio = 101;
230static int DefaultCDPrio = 102;
231static int DefaultHDPrio = 103;
232static int DefaultBEVPrio = 104;
233
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500234void
Kevin O'Connor1ca05b02010-01-03 17:43:37 -0500235boot_setup(void)
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500236{
237 if (! CONFIG_BOOT)
238 return;
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500239
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500240 if (!CONFIG_COREBOOT) {
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500241 // On emulators, get boot order from nvram.
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500242 if (inb_cmos(CMOS_BIOS_BOOTFLAG1) & 1)
Kevin O'Connorbaaadb62010-12-29 11:18:04 -0500243 CheckFloppySig = 0;
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500244 u32 bootorder = (inb_cmos(CMOS_BIOS_BOOTFLAG2)
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500245 | ((inb_cmos(CMOS_BIOS_BOOTFLAG1) & 0xf0) << 4));
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500246 DefaultFloppyPrio = DefaultCDPrio = DefaultHDPrio
247 = DefaultBEVPrio = DEFAULT_PRIO;
248 int i;
249 for (i=101; i<104; i++) {
250 u32 val = bootorder & 0x0f;
251 bootorder >>= 4;
252 switch (val) {
253 case 1: DefaultFloppyPrio = i; break;
254 case 2: DefaultHDPrio = i; break;
255 case 3: DefaultCDPrio = i; break;
256 case 4: DefaultBEVPrio = i; break;
257 }
258 }
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500259 }
Gleb Natapovb9a75912010-12-23 11:29:38 +0200260
Kevin O'Connord1a17462010-12-24 11:17:03 -0500261 loadBootOrder();
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500262}
263
Kevin O'Connord1a17462010-12-24 11:17:03 -0500264
265/****************************************************************
Kevin O'Connor031ef552010-12-27 19:26:57 -0500266 * BootList handling
Kevin O'Connord1a17462010-12-24 11:17:03 -0500267 ****************************************************************/
268
Kevin O'Connor031ef552010-12-27 19:26:57 -0500269struct bootentry_s {
270 int type;
271 union {
272 u32 data;
273 struct segoff_s vector;
274 struct drive_s *drive;
275 };
276 int priority;
277 const char *description;
278 struct bootentry_s *next;
279};
Kevin O'Connor031ef552010-12-27 19:26:57 -0500280static struct bootentry_s *BootList;
281
Kevin O'Connor7bb15842010-12-29 11:25:14 -0500282#define IPL_TYPE_FLOPPY 0x01
283#define IPL_TYPE_HARDDISK 0x02
284#define IPL_TYPE_CDROM 0x03
285#define IPL_TYPE_CBFS 0x20
286#define IPL_TYPE_BEV 0x80
287#define IPL_TYPE_BCV 0x81
288
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500289static void
290bootentry_add(int type, int prio, u32 data, const char *desc)
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500291{
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500292 if (! CONFIG_BOOT)
293 return;
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500294 struct bootentry_s *be = malloc_tmp(sizeof(*be));
295 if (!be) {
296 warn_noalloc();
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500297 return;
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500298 }
299 be->type = type;
300 be->priority = prio;
301 be->data = data;
Kevin O'Connorca2bc1c2010-12-29 21:41:19 -0500302 be->description = desc ?: "?";
Kevin O'Connor8bf55032011-01-01 11:00:42 -0500303 dprintf(3, "Registering bootable: %s (type:%d prio:%d data:%x)\n"
304 , be->description, type, prio, data);
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500305
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500306 // Add entry in sorted order.
307 struct bootentry_s **pprev;
308 for (pprev = &BootList; *pprev; pprev = &(*pprev)->next) {
309 struct bootentry_s *pos = *pprev;
310 if (be->priority < pos->priority)
311 break;
312 if (be->priority > pos->priority)
313 continue;
314 if (be->type < pos->type)
315 break;
316 if (be->type > pos->type)
317 continue;
318 if (be->type <= IPL_TYPE_CDROM
319 && (be->drive->type < pos->drive->type
320 || (be->drive->type == pos->drive->type
321 && be->drive->cntl_id < pos->drive->cntl_id)))
322 break;
323 }
324 be->next = *pprev;
325 *pprev = be;
Kevin O'Connor0a924122009-02-08 19:43:47 -0500326}
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500327
Kevin O'Connor031ef552010-12-27 19:26:57 -0500328// Return the given priority if it's set - defaultprio otherwise.
329static inline int defPrio(int priority, int defaultprio) {
330 return (priority < 0) ? defaultprio : priority;
331}
332
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500333// Add a BEV vector for a given pnp compatible option rom.
Gleb Natapov4c90a202010-12-07 13:50:54 +0200334void
Kevin O'Connor031ef552010-12-27 19:26:57 -0500335boot_add_bev(u16 seg, u16 bev, u16 desc, int prio)
Gleb Natapov4c90a202010-12-07 13:50:54 +0200336{
Kevin O'Connor031ef552010-12-27 19:26:57 -0500337 bootentry_add(IPL_TYPE_BEV, defPrio(prio, DefaultBEVPrio)
338 , SEGOFF(seg, bev).segoff
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500339 , desc ? MAKE_FLATPTR(seg, desc) : "Unknown");
340 DefaultBEVPrio = DEFAULT_PRIO;
Gleb Natapov4c90a202010-12-07 13:50:54 +0200341}
342
Kevin O'Connor0a924122009-02-08 19:43:47 -0500343// Add a bcv entry for an expansion card harddrive or legacy option rom
344void
Kevin O'Connor031ef552010-12-27 19:26:57 -0500345boot_add_bcv(u16 seg, u16 ip, u16 desc, int prio)
Kevin O'Connor0a924122009-02-08 19:43:47 -0500346{
Kevin O'Connor88e745e2012-01-14 11:58:14 -0500347 bootentry_add(IPL_TYPE_BCV, defPrio(prio, DefaultHDPrio)
Kevin O'Connor031ef552010-12-27 19:26:57 -0500348 , SEGOFF(seg, ip).segoff
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500349 , desc ? MAKE_FLATPTR(seg, desc) : "Legacy option rom");
Kevin O'Connor0a924122009-02-08 19:43:47 -0500350}
351
Kevin O'Connor0a924122009-02-08 19:43:47 -0500352void
Kevin O'Connorca2bc1c2010-12-29 21:41:19 -0500353boot_add_floppy(struct drive_s *drive_g, const char *desc, int prio)
Kevin O'Connor0a924122009-02-08 19:43:47 -0500354{
Kevin O'Connor031ef552010-12-27 19:26:57 -0500355 bootentry_add(IPL_TYPE_FLOPPY, defPrio(prio, DefaultFloppyPrio)
Kevin O'Connorca2bc1c2010-12-29 21:41:19 -0500356 , (u32)drive_g, desc);
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500357}
Kevin O'Connor0a924122009-02-08 19:43:47 -0500358
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500359void
Kevin O'Connorca2bc1c2010-12-29 21:41:19 -0500360boot_add_hd(struct drive_s *drive_g, const char *desc, int prio)
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500361{
Kevin O'Connor031ef552010-12-27 19:26:57 -0500362 bootentry_add(IPL_TYPE_HARDDISK, defPrio(prio, DefaultHDPrio)
Kevin O'Connorca2bc1c2010-12-29 21:41:19 -0500363 , (u32)drive_g, desc);
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500364}
365
366void
Kevin O'Connorca2bc1c2010-12-29 21:41:19 -0500367boot_add_cd(struct drive_s *drive_g, const char *desc, int prio)
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500368{
Kevin O'Connor031ef552010-12-27 19:26:57 -0500369 bootentry_add(IPL_TYPE_CDROM, defPrio(prio, DefaultCDPrio)
Kevin O'Connorca2bc1c2010-12-29 21:41:19 -0500370 , (u32)drive_g, desc);
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500371}
372
373// Add a CBFS payload entry
374void
Kevin O'Connor031ef552010-12-27 19:26:57 -0500375boot_add_cbfs(void *data, const char *desc, int prio)
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500376{
Kevin O'Connor031ef552010-12-27 19:26:57 -0500377 bootentry_add(IPL_TYPE_CBFS, defPrio(prio, DEFAULT_PRIO), (u32)data, desc);
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500378}
379
380
381/****************************************************************
Kevin O'Connor0a924122009-02-08 19:43:47 -0500382 * Boot menu and BCV execution
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500383 ****************************************************************/
384
Kevin O'Connor73023002011-07-05 20:34:34 -0400385#define DEFAULT_BOOTMENU_WAIT 2500
386
Kevin O'Connor0a924122009-02-08 19:43:47 -0500387// Show IPL option menu.
388static void
Kevin O'Connor1ca05b02010-01-03 17:43:37 -0500389interactive_bootmenu(void)
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500390{
Kevin O'Connore7cc7642009-10-04 10:05:16 -0400391 if (! CONFIG_BOOTMENU || ! qemu_cfg_show_boot_menu())
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500392 return;
393
394 while (get_keystroke(0) >= 0)
395 ;
396
397 printf("Press F12 for boot menu.\n\n");
398
Kevin O'Connor73023002011-07-05 20:34:34 -0400399 u32 menutime = romfile_loadint("etc/boot-menu-wait", DEFAULT_BOOTMENU_WAIT);
Kevin O'Connor9a01a9c2010-08-25 21:07:48 -0400400 enable_bootsplash();
Kevin O'Connor73023002011-07-05 20:34:34 -0400401 int scan_code = get_keystroke(menutime);
Kevin O'Connor9a01a9c2010-08-25 21:07:48 -0400402 disable_bootsplash();
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500403 if (scan_code != 0x86)
404 /* not F12 */
405 return;
406
407 while (get_keystroke(0) >= 0)
408 ;
409
410 printf("Select boot device:\n\n");
Kevin O'Connore438b0c2010-05-01 12:20:33 -0400411 wait_threads();
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500412
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500413 // Show menu items
414 struct bootentry_s *pos = BootList;
415 int maxmenu = 0;
416 while (pos) {
417 char desc[60];
418 maxmenu++;
419 printf("%d. %s\n", maxmenu
420 , strtcpy(desc, pos->description, ARRAY_SIZE(desc)));
421 pos = pos->next;
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500422 }
423
Kevin O'Connor551caa22010-12-29 13:25:18 -0500424 // Get key press
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500425 for (;;) {
426 scan_code = get_keystroke(1000);
Kevin O'Connor551caa22010-12-29 13:25:18 -0500427 if (scan_code >= 1 && scan_code <= maxmenu+1)
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500428 break;
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500429 }
430 printf("\n");
Kevin O'Connor551caa22010-12-29 13:25:18 -0500431 if (scan_code == 0x01)
432 // ESC
433 return;
434
435 // Find entry and make top priority.
436 int choice = scan_code - 1;
437 struct bootentry_s **pprev = &BootList;
438 while (--choice)
439 pprev = &(*pprev)->next;
440 pos = *pprev;
441 *pprev = pos->next;
442 pos->next = BootList;
443 BootList = pos;
444 pos->priority = 0;
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500445}
446
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500447// BEV (Boot Execution Vector) list
Kevin O'Connor7bb15842010-12-29 11:25:14 -0500448struct bev_s {
449 int type;
450 u32 vector;
451};
452static struct bev_s BEV[20];
453static int BEVCount;
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500454static int HaveHDBoot, HaveFDBoot;
455
Kevin O'Connor0a924122009-02-08 19:43:47 -0500456static void
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500457add_bev(int type, u32 vector)
Kevin O'Connor0a924122009-02-08 19:43:47 -0500458{
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500459 if (type == IPL_TYPE_HARDDISK && HaveHDBoot++)
460 return;
461 if (type == IPL_TYPE_FLOPPY && HaveFDBoot++)
462 return;
Kevin O'Connor7bb15842010-12-29 11:25:14 -0500463 if (BEVCount >= ARRAY_SIZE(BEV))
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500464 return;
Kevin O'Connor7bb15842010-12-29 11:25:14 -0500465 struct bev_s *bev = &BEV[BEVCount++];
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500466 bev->type = type;
467 bev->vector = vector;
Kevin O'Connor0a924122009-02-08 19:43:47 -0500468}
469
470// Prepare for boot - show menu and run bcvs.
471void
Kevin O'Connor1ca05b02010-01-03 17:43:37 -0500472boot_prep(void)
Kevin O'Connor0a924122009-02-08 19:43:47 -0500473{
Kevin O'Connore438b0c2010-05-01 12:20:33 -0400474 if (! CONFIG_BOOT) {
475 wait_threads();
Kevin O'Connor0a924122009-02-08 19:43:47 -0500476 return;
Kevin O'Connore438b0c2010-05-01 12:20:33 -0400477 }
Kevin O'Connor0a924122009-02-08 19:43:47 -0500478
Kevin O'Connora5826b52009-10-24 17:57:29 -0400479 // XXX - show available drives?
480
Kevin O'Connor0a924122009-02-08 19:43:47 -0500481 // Allow user to modify BCV/IPL order.
482 interactive_bootmenu();
Kevin O'Connore438b0c2010-05-01 12:20:33 -0400483 wait_threads();
Kevin O'Connor0a924122009-02-08 19:43:47 -0500484
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500485 // Map drives and populate BEV list
486 struct bootentry_s *pos = BootList;
487 while (pos) {
488 switch (pos->type) {
489 case IPL_TYPE_BCV:
490 call_bcv(pos->vector.seg, pos->vector.offset);
491 add_bev(IPL_TYPE_HARDDISK, 0);
492 break;
493 case IPL_TYPE_FLOPPY:
494 map_floppy_drive(pos->drive);
495 add_bev(IPL_TYPE_FLOPPY, 0);
496 break;
497 case IPL_TYPE_HARDDISK:
498 map_hd_drive(pos->drive);
499 add_bev(IPL_TYPE_HARDDISK, 0);
500 break;
501 case IPL_TYPE_CDROM:
502 map_cd_drive(pos->drive);
503 // NO BREAK
504 default:
505 add_bev(pos->type, pos->data);
506 break;
507 }
508 pos = pos->next;
509 }
Kevin O'Connorafd05202009-08-16 12:21:44 -0400510
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500511 // If nothing added a floppy/hd boot - add it manually.
512 add_bev(IPL_TYPE_FLOPPY, 0);
513 add_bev(IPL_TYPE_HARDDISK, 0);
Kevin O'Connor0a924122009-02-08 19:43:47 -0500514}
515
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500516
517/****************************************************************
518 * Boot code (int 18/19)
519 ****************************************************************/
520
Kevin O'Connor0a924122009-02-08 19:43:47 -0500521// Jump to a bootup entry point.
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500522static void
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500523call_boot_entry(struct segoff_s bootsegip, u8 bootdrv)
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500524{
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500525 dprintf(1, "Booting from %04x:%04x\n", bootsegip.seg, bootsegip.offset);
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500526 struct bregs br;
527 memset(&br, 0, sizeof(br));
Kevin O'Connorf8e800d2009-09-24 21:01:16 -0400528 br.flags = F_IF;
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500529 br.code = bootsegip;
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500530 // Set the magic number in ax and the boot drive in dl.
531 br.dl = bootdrv;
532 br.ax = 0xaa55;
533 call16(&br);
534}
535
536// Boot from a disk (either floppy or harddrive)
537static void
538boot_disk(u8 bootdrv, int checksig)
539{
540 u16 bootseg = 0x07c0;
541
542 // Read sector
543 struct bregs br;
544 memset(&br, 0, sizeof(br));
Kevin O'Connorf8e800d2009-09-24 21:01:16 -0400545 br.flags = F_IF;
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500546 br.dl = bootdrv;
547 br.es = bootseg;
548 br.ah = 2;
549 br.al = 1;
550 br.cl = 1;
551 call16_int(0x13, &br);
552
553 if (br.flags & F_CF) {
554 printf("Boot failed: could not read the boot disk\n\n");
555 return;
556 }
557
558 if (checksig) {
559 struct mbr_s *mbr = (void*)0;
560 if (GET_FARVAR(bootseg, mbr->signature) != MBR_SIGNATURE) {
561 printf("Boot failed: not a bootable disk\n\n");
562 return;
563 }
564 }
565
566 /* Canonicalize bootseg:bootip */
567 u16 bootip = (bootseg & 0x0fff) << 4;
568 bootseg &= 0xf000;
569
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500570 call_boot_entry(SEGOFF(bootseg, bootip), bootdrv);
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500571}
572
573// Boot from a CD-ROM
574static void
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500575boot_cdrom(struct drive_s *drive_g)
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500576{
577 if (! CONFIG_CDROM_BOOT)
578 return;
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500579 printf("Booting from DVD/CD...\n");
Gleb Natapov4c90a202010-12-07 13:50:54 +0200580
Gleb Natapov4c90a202010-12-07 13:50:54 +0200581 int status = cdrom_boot(drive_g);
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500582 if (status) {
Kevin O'Connorecbcf772010-12-29 13:26:01 -0500583 printf("Boot failed: Could not read from CDROM (code %04x)\n", status);
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500584 return;
585 }
586
Kevin O'Connord3140832012-05-13 22:46:12 -0400587 u8 bootdrv = CDEmu.emulated_extdrive;
588 u16 bootseg = CDEmu.load_segment;
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500589 /* Canonicalize bootseg:bootip */
590 u16 bootip = (bootseg & 0x0fff) << 4;
591 bootseg &= 0xf000;
592
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500593 call_boot_entry(SEGOFF(bootseg, bootip), bootdrv);
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500594}
595
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400596// Boot from a CBFS payload
Kevin O'Connor67823442009-04-13 14:14:51 -0400597static void
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500598boot_cbfs(struct cbfs_file *file)
Kevin O'Connor67823442009-04-13 14:14:51 -0400599{
Kevin O'Connord9c93612010-03-20 11:00:45 -0400600 if (!CONFIG_COREBOOT || !CONFIG_COREBOOT_FLASH)
Kevin O'Connor67823442009-04-13 14:14:51 -0400601 return;
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500602 printf("Booting from CBFS...\n");
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500603 cbfs_run_payload(file);
Kevin O'Connor67823442009-04-13 14:14:51 -0400604}
605
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500606// Boot from a BEV entry on an optionrom.
607static void
608boot_rom(u32 vector)
609{
610 printf("Booting from ROM...\n");
611 struct segoff_s so;
612 so.segoff = vector;
613 call_boot_entry(so, 0);
614}
615
Kevin O'Connorb8fcf462012-05-12 22:12:22 -0400616// Unable to find bootable device - warn user and eventually retry.
617static void
618boot_fail(void)
619{
620 u32 retrytime = romfile_loadint("etc/boot-fail-wait", 60*1000);
621 if (retrytime == (u32)-1)
622 printf("No bootable device.\n");
623 else
624 printf("No bootable device. Retrying in %d seconds.\n", retrytime/1000);
625 // Wait for 'retrytime' milliseconds and then reboot.
626 u32 end = calc_future_timer(retrytime);
627 for (;;) {
628 if (retrytime != (u32)-1 && check_timer(end))
629 break;
Kevin O'Connor94c749c2012-05-28 11:44:02 -0400630 yield_toirq();
Kevin O'Connorb8fcf462012-05-12 22:12:22 -0400631 }
632 printf("Rebooting.\n");
633 struct bregs br;
634 memset(&br, 0, sizeof(br));
635 br.code = SEGOFF(SEG_BIOS, (u32)reset_vector);
636 call16big(&br);
637}
638
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500639// Determine next boot method and attempt a boot using it.
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500640static void
Kevin O'Connor9d8e0a62012-05-13 12:23:58 -0400641do_boot(int seq_nr)
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500642{
Kevin O'Connor40967022008-07-21 22:23:05 -0400643 if (! CONFIG_BOOT)
Kevin O'Connore07e18e2009-02-08 17:07:29 -0500644 panic("Boot support not compiled in.\n");
Kevin O'Connor40967022008-07-21 22:23:05 -0400645
Kevin O'Connorb8fcf462012-05-12 22:12:22 -0400646 if (seq_nr >= BEVCount)
647 boot_fail();
Kevin O'Connor38fcbfe2008-02-25 22:30:47 -0500648
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500649 // Boot the given BEV type.
Kevin O'Connor7bb15842010-12-29 11:25:14 -0500650 struct bev_s *ie = &BEV[seq_nr];
Kevin O'Connorcadaf0e2010-07-26 23:47:26 -0400651 switch (ie->type) {
Kevin O'Connorf13b0082008-08-17 11:26:42 -0400652 case IPL_TYPE_FLOPPY:
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500653 printf("Booting from Floppy...\n");
Kevin O'Connorbaaadb62010-12-29 11:18:04 -0500654 boot_disk(0x00, CheckFloppySig);
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500655 break;
Kevin O'Connorf13b0082008-08-17 11:26:42 -0400656 case IPL_TYPE_HARDDISK:
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500657 printf("Booting from Hard Disk...\n");
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500658 boot_disk(0x80, 1);
Kevin O'Connor38fcbfe2008-02-25 22:30:47 -0500659 break;
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500660 case IPL_TYPE_CDROM:
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500661 boot_cdrom((void*)ie->vector);
Kevin O'Connor67823442009-04-13 14:14:51 -0400662 break;
663 case IPL_TYPE_CBFS:
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500664 boot_cbfs((void*)ie->vector);
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500665 break;
666 case IPL_TYPE_BEV:
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500667 boot_rom(ie->vector);
Kevin O'Connor38fcbfe2008-02-25 22:30:47 -0500668 break;
Kevin O'Connor180a9592008-03-04 22:50:53 -0500669 }
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500670
Kevin O'Connor38fcbfe2008-02-25 22:30:47 -0500671 // Boot failed: invoke the boot recovery function
Kevin O'Connor7af49bf2008-03-09 13:46:13 -0400672 struct bregs br;
673 memset(&br, 0, sizeof(br));
Kevin O'Connorf8e800d2009-09-24 21:01:16 -0400674 br.flags = F_IF;
Kevin O'Connor7af49bf2008-03-09 13:46:13 -0400675 call16_int(0x18, &br);
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500676}
677
Kevin O'Connor9d8e0a62012-05-13 12:23:58 -0400678int BootSequence VARLOW = -1;
679
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500680// Boot Failure recovery: try the next device.
Kevin O'Connor52a300f2009-12-26 23:32:57 -0500681void VISIBLE32FLAT
Kevin O'Connor1ca05b02010-01-03 17:43:37 -0500682handle_18(void)
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500683{
Kevin O'Connor61d6b062008-06-21 12:15:10 -0400684 debug_serial_setup();
Kevin O'Connor15c1f222008-06-12 22:59:43 -0400685 debug_enter(NULL, DEBUG_HDL_18);
Kevin O'Connor9d8e0a62012-05-13 12:23:58 -0400686 int seq = BootSequence + 1;
687 BootSequence = seq;
Kevin O'Connor7af49bf2008-03-09 13:46:13 -0400688 do_boot(seq);
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500689}
690
691// INT 19h Boot Load Service Entry Point
Kevin O'Connor52a300f2009-12-26 23:32:57 -0500692void VISIBLE32FLAT
Kevin O'Connor1ca05b02010-01-03 17:43:37 -0500693handle_19(void)
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500694{
Kevin O'Connor61d6b062008-06-21 12:15:10 -0400695 debug_serial_setup();
Kevin O'Connor15c1f222008-06-12 22:59:43 -0400696 debug_enter(NULL, DEBUG_HDL_19);
Kevin O'Connor9d8e0a62012-05-13 12:23:58 -0400697 BootSequence = 0;
Kevin O'Connor7af49bf2008-03-09 13:46:13 -0400698 do_boot(0);
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500699}