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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'Connor59d6ca52012-05-31 00:20:55 -040014#include "paravirt.h" // qemu_cfg_show_boot_menu
15#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
Kevin O'Connor7fa31b52012-06-13 08:47:03 -0400208int bootprio_find_usb(struct usbdevice_s *usbdev, int lun)
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'Connor7fa31b52012-06-13 08:47:03 -0400212 // Find usb - for example: /pci@i0cf8/usb@1,2/storage@1/channel@0/disk@0,0
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);
Kevin O'Connor7fa31b52012-06-13 08:47:03 -0400216 snprintf(p, desc+sizeof(desc)-p, "/storage@%x/*@0/*@0,%d"
217 , usbdev->port+1, lun);
218 int ret = find_prio(desc);
219 if (ret >= 0)
220 return ret;
221 // Try usb-host/redir - for example: /pci@i0cf8/usb@1,2/usb-host@1
222 snprintf(p, desc+sizeof(desc)-p, "/usb-*@%x", usbdev->port+1);
Kevin O'Connorc2002a12010-12-31 14:38:10 -0500223 return find_prio(desc);
224}
225
Kevin O'Connor031ef552010-12-27 19:26:57 -0500226
227/****************************************************************
228 * Boot setup
229 ****************************************************************/
230
Kevin O'Connorbaaadb62010-12-29 11:18:04 -0500231static int CheckFloppySig = 1;
232
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500233#define DEFAULT_PRIO 9999
234
235static int DefaultFloppyPrio = 101;
236static int DefaultCDPrio = 102;
237static int DefaultHDPrio = 103;
238static int DefaultBEVPrio = 104;
239
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500240void
Kevin O'Connor1ca05b02010-01-03 17:43:37 -0500241boot_setup(void)
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500242{
243 if (! CONFIG_BOOT)
244 return;
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500245
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500246 if (!CONFIG_COREBOOT) {
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500247 // On emulators, get boot order from nvram.
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500248 if (inb_cmos(CMOS_BIOS_BOOTFLAG1) & 1)
Kevin O'Connorbaaadb62010-12-29 11:18:04 -0500249 CheckFloppySig = 0;
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500250 u32 bootorder = (inb_cmos(CMOS_BIOS_BOOTFLAG2)
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500251 | ((inb_cmos(CMOS_BIOS_BOOTFLAG1) & 0xf0) << 4));
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500252 DefaultFloppyPrio = DefaultCDPrio = DefaultHDPrio
253 = DefaultBEVPrio = DEFAULT_PRIO;
254 int i;
255 for (i=101; i<104; i++) {
256 u32 val = bootorder & 0x0f;
257 bootorder >>= 4;
258 switch (val) {
259 case 1: DefaultFloppyPrio = i; break;
260 case 2: DefaultHDPrio = i; break;
261 case 3: DefaultCDPrio = i; break;
262 case 4: DefaultBEVPrio = i; break;
263 }
264 }
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500265 }
Gleb Natapovb9a75912010-12-23 11:29:38 +0200266
Kevin O'Connord1a17462010-12-24 11:17:03 -0500267 loadBootOrder();
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500268}
269
Kevin O'Connord1a17462010-12-24 11:17:03 -0500270
271/****************************************************************
Kevin O'Connor031ef552010-12-27 19:26:57 -0500272 * BootList handling
Kevin O'Connord1a17462010-12-24 11:17:03 -0500273 ****************************************************************/
274
Kevin O'Connor031ef552010-12-27 19:26:57 -0500275struct bootentry_s {
276 int type;
277 union {
278 u32 data;
279 struct segoff_s vector;
280 struct drive_s *drive;
281 };
282 int priority;
283 const char *description;
284 struct bootentry_s *next;
285};
Kevin O'Connor031ef552010-12-27 19:26:57 -0500286static struct bootentry_s *BootList;
287
Kevin O'Connor7bb15842010-12-29 11:25:14 -0500288#define IPL_TYPE_FLOPPY 0x01
289#define IPL_TYPE_HARDDISK 0x02
290#define IPL_TYPE_CDROM 0x03
291#define IPL_TYPE_CBFS 0x20
292#define IPL_TYPE_BEV 0x80
293#define IPL_TYPE_BCV 0x81
294
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500295static void
296bootentry_add(int type, int prio, u32 data, const char *desc)
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500297{
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500298 if (! CONFIG_BOOT)
299 return;
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500300 struct bootentry_s *be = malloc_tmp(sizeof(*be));
301 if (!be) {
302 warn_noalloc();
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500303 return;
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500304 }
305 be->type = type;
306 be->priority = prio;
307 be->data = data;
Kevin O'Connorca2bc1c2010-12-29 21:41:19 -0500308 be->description = desc ?: "?";
Kevin O'Connor8bf55032011-01-01 11:00:42 -0500309 dprintf(3, "Registering bootable: %s (type:%d prio:%d data:%x)\n"
310 , be->description, type, prio, data);
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500311
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500312 // Add entry in sorted order.
313 struct bootentry_s **pprev;
314 for (pprev = &BootList; *pprev; pprev = &(*pprev)->next) {
315 struct bootentry_s *pos = *pprev;
316 if (be->priority < pos->priority)
317 break;
318 if (be->priority > pos->priority)
319 continue;
320 if (be->type < pos->type)
321 break;
322 if (be->type > pos->type)
323 continue;
324 if (be->type <= IPL_TYPE_CDROM
325 && (be->drive->type < pos->drive->type
326 || (be->drive->type == pos->drive->type
327 && be->drive->cntl_id < pos->drive->cntl_id)))
328 break;
329 }
330 be->next = *pprev;
331 *pprev = be;
Kevin O'Connor0a924122009-02-08 19:43:47 -0500332}
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500333
Kevin O'Connor031ef552010-12-27 19:26:57 -0500334// Return the given priority if it's set - defaultprio otherwise.
335static inline int defPrio(int priority, int defaultprio) {
336 return (priority < 0) ? defaultprio : priority;
337}
338
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500339// Add a BEV vector for a given pnp compatible option rom.
Gleb Natapov4c90a202010-12-07 13:50:54 +0200340void
Kevin O'Connor031ef552010-12-27 19:26:57 -0500341boot_add_bev(u16 seg, u16 bev, u16 desc, int prio)
Gleb Natapov4c90a202010-12-07 13:50:54 +0200342{
Kevin O'Connor031ef552010-12-27 19:26:57 -0500343 bootentry_add(IPL_TYPE_BEV, defPrio(prio, DefaultBEVPrio)
344 , SEGOFF(seg, bev).segoff
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500345 , desc ? MAKE_FLATPTR(seg, desc) : "Unknown");
346 DefaultBEVPrio = DEFAULT_PRIO;
Gleb Natapov4c90a202010-12-07 13:50:54 +0200347}
348
Kevin O'Connor0a924122009-02-08 19:43:47 -0500349// Add a bcv entry for an expansion card harddrive or legacy option rom
350void
Kevin O'Connor031ef552010-12-27 19:26:57 -0500351boot_add_bcv(u16 seg, u16 ip, u16 desc, int prio)
Kevin O'Connor0a924122009-02-08 19:43:47 -0500352{
Kevin O'Connor88e745e2012-01-14 11:58:14 -0500353 bootentry_add(IPL_TYPE_BCV, defPrio(prio, DefaultHDPrio)
Kevin O'Connor031ef552010-12-27 19:26:57 -0500354 , SEGOFF(seg, ip).segoff
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500355 , desc ? MAKE_FLATPTR(seg, desc) : "Legacy option rom");
Kevin O'Connor0a924122009-02-08 19:43:47 -0500356}
357
Kevin O'Connor0a924122009-02-08 19:43:47 -0500358void
Kevin O'Connorca2bc1c2010-12-29 21:41:19 -0500359boot_add_floppy(struct drive_s *drive_g, const char *desc, int prio)
Kevin O'Connor0a924122009-02-08 19:43:47 -0500360{
Kevin O'Connor031ef552010-12-27 19:26:57 -0500361 bootentry_add(IPL_TYPE_FLOPPY, defPrio(prio, DefaultFloppyPrio)
Kevin O'Connorca2bc1c2010-12-29 21:41:19 -0500362 , (u32)drive_g, desc);
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500363}
Kevin O'Connor0a924122009-02-08 19:43:47 -0500364
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500365void
Kevin O'Connorca2bc1c2010-12-29 21:41:19 -0500366boot_add_hd(struct drive_s *drive_g, const char *desc, int prio)
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500367{
Kevin O'Connor031ef552010-12-27 19:26:57 -0500368 bootentry_add(IPL_TYPE_HARDDISK, defPrio(prio, DefaultHDPrio)
Kevin O'Connorca2bc1c2010-12-29 21:41:19 -0500369 , (u32)drive_g, desc);
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500370}
371
372void
Kevin O'Connorca2bc1c2010-12-29 21:41:19 -0500373boot_add_cd(struct drive_s *drive_g, const char *desc, int prio)
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500374{
Kevin O'Connor031ef552010-12-27 19:26:57 -0500375 bootentry_add(IPL_TYPE_CDROM, defPrio(prio, DefaultCDPrio)
Kevin O'Connorca2bc1c2010-12-29 21:41:19 -0500376 , (u32)drive_g, desc);
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500377}
378
379// Add a CBFS payload entry
380void
Kevin O'Connor031ef552010-12-27 19:26:57 -0500381boot_add_cbfs(void *data, const char *desc, int prio)
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500382{
Kevin O'Connor031ef552010-12-27 19:26:57 -0500383 bootentry_add(IPL_TYPE_CBFS, defPrio(prio, DEFAULT_PRIO), (u32)data, desc);
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500384}
385
386
387/****************************************************************
Kevin O'Connor0a924122009-02-08 19:43:47 -0500388 * Boot menu and BCV execution
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500389 ****************************************************************/
390
Kevin O'Connor73023002011-07-05 20:34:34 -0400391#define DEFAULT_BOOTMENU_WAIT 2500
392
Kevin O'Connor0a924122009-02-08 19:43:47 -0500393// Show IPL option menu.
394static void
Kevin O'Connor1ca05b02010-01-03 17:43:37 -0500395interactive_bootmenu(void)
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500396{
Kevin O'Connore7cc7642009-10-04 10:05:16 -0400397 if (! CONFIG_BOOTMENU || ! qemu_cfg_show_boot_menu())
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500398 return;
399
400 while (get_keystroke(0) >= 0)
401 ;
402
403 printf("Press F12 for boot menu.\n\n");
404
Kevin O'Connor73023002011-07-05 20:34:34 -0400405 u32 menutime = romfile_loadint("etc/boot-menu-wait", DEFAULT_BOOTMENU_WAIT);
Kevin O'Connor9a01a9c2010-08-25 21:07:48 -0400406 enable_bootsplash();
Kevin O'Connor73023002011-07-05 20:34:34 -0400407 int scan_code = get_keystroke(menutime);
Kevin O'Connor9a01a9c2010-08-25 21:07:48 -0400408 disable_bootsplash();
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500409 if (scan_code != 0x86)
410 /* not F12 */
411 return;
412
413 while (get_keystroke(0) >= 0)
414 ;
415
416 printf("Select boot device:\n\n");
Kevin O'Connore438b0c2010-05-01 12:20:33 -0400417 wait_threads();
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500418
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500419 // Show menu items
420 struct bootentry_s *pos = BootList;
421 int maxmenu = 0;
422 while (pos) {
423 char desc[60];
424 maxmenu++;
425 printf("%d. %s\n", maxmenu
426 , strtcpy(desc, pos->description, ARRAY_SIZE(desc)));
427 pos = pos->next;
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500428 }
429
Kevin O'Connor551caa22010-12-29 13:25:18 -0500430 // Get key press
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500431 for (;;) {
432 scan_code = get_keystroke(1000);
Kevin O'Connor551caa22010-12-29 13:25:18 -0500433 if (scan_code >= 1 && scan_code <= maxmenu+1)
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500434 break;
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500435 }
436 printf("\n");
Kevin O'Connor551caa22010-12-29 13:25:18 -0500437 if (scan_code == 0x01)
438 // ESC
439 return;
440
441 // Find entry and make top priority.
442 int choice = scan_code - 1;
443 struct bootentry_s **pprev = &BootList;
444 while (--choice)
445 pprev = &(*pprev)->next;
446 pos = *pprev;
447 *pprev = pos->next;
448 pos->next = BootList;
449 BootList = pos;
450 pos->priority = 0;
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500451}
452
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500453// BEV (Boot Execution Vector) list
Kevin O'Connor7bb15842010-12-29 11:25:14 -0500454struct bev_s {
455 int type;
456 u32 vector;
457};
458static struct bev_s BEV[20];
459static int BEVCount;
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500460static int HaveHDBoot, HaveFDBoot;
461
Kevin O'Connor0a924122009-02-08 19:43:47 -0500462static void
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500463add_bev(int type, u32 vector)
Kevin O'Connor0a924122009-02-08 19:43:47 -0500464{
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500465 if (type == IPL_TYPE_HARDDISK && HaveHDBoot++)
466 return;
467 if (type == IPL_TYPE_FLOPPY && HaveFDBoot++)
468 return;
Kevin O'Connor7bb15842010-12-29 11:25:14 -0500469 if (BEVCount >= ARRAY_SIZE(BEV))
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500470 return;
Kevin O'Connor7bb15842010-12-29 11:25:14 -0500471 struct bev_s *bev = &BEV[BEVCount++];
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500472 bev->type = type;
473 bev->vector = vector;
Kevin O'Connor0a924122009-02-08 19:43:47 -0500474}
475
476// Prepare for boot - show menu and run bcvs.
477void
Kevin O'Connor1ca05b02010-01-03 17:43:37 -0500478boot_prep(void)
Kevin O'Connor0a924122009-02-08 19:43:47 -0500479{
Kevin O'Connore438b0c2010-05-01 12:20:33 -0400480 if (! CONFIG_BOOT) {
481 wait_threads();
Kevin O'Connor0a924122009-02-08 19:43:47 -0500482 return;
Kevin O'Connore438b0c2010-05-01 12:20:33 -0400483 }
Kevin O'Connor0a924122009-02-08 19:43:47 -0500484
Kevin O'Connora5826b52009-10-24 17:57:29 -0400485 // XXX - show available drives?
486
Kevin O'Connor0a924122009-02-08 19:43:47 -0500487 // Allow user to modify BCV/IPL order.
488 interactive_bootmenu();
Kevin O'Connore438b0c2010-05-01 12:20:33 -0400489 wait_threads();
Kevin O'Connor0a924122009-02-08 19:43:47 -0500490
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500491 // Map drives and populate BEV list
492 struct bootentry_s *pos = BootList;
493 while (pos) {
494 switch (pos->type) {
495 case IPL_TYPE_BCV:
496 call_bcv(pos->vector.seg, pos->vector.offset);
497 add_bev(IPL_TYPE_HARDDISK, 0);
498 break;
499 case IPL_TYPE_FLOPPY:
500 map_floppy_drive(pos->drive);
501 add_bev(IPL_TYPE_FLOPPY, 0);
502 break;
503 case IPL_TYPE_HARDDISK:
504 map_hd_drive(pos->drive);
505 add_bev(IPL_TYPE_HARDDISK, 0);
506 break;
507 case IPL_TYPE_CDROM:
508 map_cd_drive(pos->drive);
509 // NO BREAK
510 default:
511 add_bev(pos->type, pos->data);
512 break;
513 }
514 pos = pos->next;
515 }
Kevin O'Connorafd05202009-08-16 12:21:44 -0400516
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500517 // If nothing added a floppy/hd boot - add it manually.
518 add_bev(IPL_TYPE_FLOPPY, 0);
519 add_bev(IPL_TYPE_HARDDISK, 0);
Kevin O'Connor0a924122009-02-08 19:43:47 -0500520}
521
Kevin O'Connor9f4e1d92009-02-08 15:44:08 -0500522
523/****************************************************************
524 * Boot code (int 18/19)
525 ****************************************************************/
526
Kevin O'Connor0a924122009-02-08 19:43:47 -0500527// Jump to a bootup entry point.
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500528static void
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500529call_boot_entry(struct segoff_s bootsegip, u8 bootdrv)
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500530{
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500531 dprintf(1, "Booting from %04x:%04x\n", bootsegip.seg, bootsegip.offset);
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500532 struct bregs br;
533 memset(&br, 0, sizeof(br));
Kevin O'Connorf8e800d2009-09-24 21:01:16 -0400534 br.flags = F_IF;
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500535 br.code = bootsegip;
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500536 // Set the magic number in ax and the boot drive in dl.
537 br.dl = bootdrv;
538 br.ax = 0xaa55;
Kevin O'Connorc7ffbac2012-03-25 11:04:10 -0400539 farcall16(&br);
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500540}
541
542// Boot from a disk (either floppy or harddrive)
543static void
544boot_disk(u8 bootdrv, int checksig)
545{
546 u16 bootseg = 0x07c0;
547
548 // Read sector
549 struct bregs br;
550 memset(&br, 0, sizeof(br));
Kevin O'Connorf8e800d2009-09-24 21:01:16 -0400551 br.flags = F_IF;
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500552 br.dl = bootdrv;
553 br.es = bootseg;
554 br.ah = 2;
555 br.al = 1;
556 br.cl = 1;
557 call16_int(0x13, &br);
558
559 if (br.flags & F_CF) {
560 printf("Boot failed: could not read the boot disk\n\n");
561 return;
562 }
563
564 if (checksig) {
565 struct mbr_s *mbr = (void*)0;
566 if (GET_FARVAR(bootseg, mbr->signature) != MBR_SIGNATURE) {
567 printf("Boot failed: not a bootable disk\n\n");
568 return;
569 }
570 }
571
572 /* Canonicalize bootseg:bootip */
573 u16 bootip = (bootseg & 0x0fff) << 4;
574 bootseg &= 0xf000;
575
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500576 call_boot_entry(SEGOFF(bootseg, bootip), bootdrv);
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500577}
578
579// Boot from a CD-ROM
580static void
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500581boot_cdrom(struct drive_s *drive_g)
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500582{
583 if (! CONFIG_CDROM_BOOT)
584 return;
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500585 printf("Booting from DVD/CD...\n");
Gleb Natapov4c90a202010-12-07 13:50:54 +0200586
Gleb Natapov4c90a202010-12-07 13:50:54 +0200587 int status = cdrom_boot(drive_g);
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500588 if (status) {
Kevin O'Connorecbcf772010-12-29 13:26:01 -0500589 printf("Boot failed: Could not read from CDROM (code %04x)\n", status);
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500590 return;
591 }
592
Kevin O'Connord3140832012-05-13 22:46:12 -0400593 u8 bootdrv = CDEmu.emulated_extdrive;
594 u16 bootseg = CDEmu.load_segment;
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500595 /* Canonicalize bootseg:bootip */
596 u16 bootip = (bootseg & 0x0fff) << 4;
597 bootseg &= 0xf000;
598
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500599 call_boot_entry(SEGOFF(bootseg, bootip), bootdrv);
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500600}
601
Kevin O'Connore8f00ee2009-07-04 04:04:36 -0400602// Boot from a CBFS payload
Kevin O'Connor67823442009-04-13 14:14:51 -0400603static void
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500604boot_cbfs(struct cbfs_file *file)
Kevin O'Connor67823442009-04-13 14:14:51 -0400605{
Kevin O'Connord9c93612010-03-20 11:00:45 -0400606 if (!CONFIG_COREBOOT || !CONFIG_COREBOOT_FLASH)
Kevin O'Connor67823442009-04-13 14:14:51 -0400607 return;
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500608 printf("Booting from CBFS...\n");
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500609 cbfs_run_payload(file);
Kevin O'Connor67823442009-04-13 14:14:51 -0400610}
611
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500612// Boot from a BEV entry on an optionrom.
613static void
614boot_rom(u32 vector)
615{
616 printf("Booting from ROM...\n");
617 struct segoff_s so;
618 so.segoff = vector;
619 call_boot_entry(so, 0);
620}
621
Kevin O'Connorb8fcf462012-05-12 22:12:22 -0400622// Unable to find bootable device - warn user and eventually retry.
623static void
624boot_fail(void)
625{
626 u32 retrytime = romfile_loadint("etc/boot-fail-wait", 60*1000);
627 if (retrytime == (u32)-1)
628 printf("No bootable device.\n");
629 else
630 printf("No bootable device. Retrying in %d seconds.\n", retrytime/1000);
631 // Wait for 'retrytime' milliseconds and then reboot.
632 u32 end = calc_future_timer(retrytime);
633 for (;;) {
634 if (retrytime != (u32)-1 && check_timer(end))
635 break;
Kevin O'Connor94c749c2012-05-28 11:44:02 -0400636 yield_toirq();
Kevin O'Connorb8fcf462012-05-12 22:12:22 -0400637 }
638 printf("Rebooting.\n");
639 struct bregs br;
640 memset(&br, 0, sizeof(br));
641 br.code = SEGOFF(SEG_BIOS, (u32)reset_vector);
Kevin O'Connorc7ffbac2012-03-25 11:04:10 -0400642 farcall16big(&br);
Kevin O'Connorb8fcf462012-05-12 22:12:22 -0400643}
644
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500645// Determine next boot method and attempt a boot using it.
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500646static void
Kevin O'Connor9d8e0a62012-05-13 12:23:58 -0400647do_boot(int seq_nr)
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500648{
Kevin O'Connor40967022008-07-21 22:23:05 -0400649 if (! CONFIG_BOOT)
Kevin O'Connore07e18e2009-02-08 17:07:29 -0500650 panic("Boot support not compiled in.\n");
Kevin O'Connor40967022008-07-21 22:23:05 -0400651
Kevin O'Connorb8fcf462012-05-12 22:12:22 -0400652 if (seq_nr >= BEVCount)
653 boot_fail();
Kevin O'Connor38fcbfe2008-02-25 22:30:47 -0500654
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500655 // Boot the given BEV type.
Kevin O'Connor7bb15842010-12-29 11:25:14 -0500656 struct bev_s *ie = &BEV[seq_nr];
Kevin O'Connorcadaf0e2010-07-26 23:47:26 -0400657 switch (ie->type) {
Kevin O'Connorf13b0082008-08-17 11:26:42 -0400658 case IPL_TYPE_FLOPPY:
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500659 printf("Booting from Floppy...\n");
Kevin O'Connorbaaadb62010-12-29 11:18:04 -0500660 boot_disk(0x00, CheckFloppySig);
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500661 break;
Kevin O'Connorf13b0082008-08-17 11:26:42 -0400662 case IPL_TYPE_HARDDISK:
Kevin O'Connor72eee3e2010-12-27 19:07:49 -0500663 printf("Booting from Hard Disk...\n");
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500664 boot_disk(0x80, 1);
Kevin O'Connor38fcbfe2008-02-25 22:30:47 -0500665 break;
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500666 case IPL_TYPE_CDROM:
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500667 boot_cdrom((void*)ie->vector);
Kevin O'Connor67823442009-04-13 14:14:51 -0400668 break;
669 case IPL_TYPE_CBFS:
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500670 boot_cbfs((void*)ie->vector);
Kevin O'Connor71f036d2009-02-08 16:57:22 -0500671 break;
672 case IPL_TYPE_BEV:
Kevin O'Connorf13a1802010-12-29 11:52:33 -0500673 boot_rom(ie->vector);
Kevin O'Connor38fcbfe2008-02-25 22:30:47 -0500674 break;
Kevin O'Connor180a9592008-03-04 22:50:53 -0500675 }
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500676
Kevin O'Connor38fcbfe2008-02-25 22:30:47 -0500677 // Boot failed: invoke the boot recovery function
Kevin O'Connor7af49bf2008-03-09 13:46:13 -0400678 struct bregs br;
679 memset(&br, 0, sizeof(br));
Kevin O'Connorf8e800d2009-09-24 21:01:16 -0400680 br.flags = F_IF;
Kevin O'Connor7af49bf2008-03-09 13:46:13 -0400681 call16_int(0x18, &br);
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500682}
683
Kevin O'Connor9d8e0a62012-05-13 12:23:58 -0400684int BootSequence VARLOW = -1;
685
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500686// Boot Failure recovery: try the next device.
Kevin O'Connor52a300f2009-12-26 23:32:57 -0500687void VISIBLE32FLAT
Kevin O'Connor1ca05b02010-01-03 17:43:37 -0500688handle_18(void)
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500689{
Kevin O'Connor61d6b062008-06-21 12:15:10 -0400690 debug_serial_setup();
Kevin O'Connor15c1f222008-06-12 22:59:43 -0400691 debug_enter(NULL, DEBUG_HDL_18);
Kevin O'Connor9d8e0a62012-05-13 12:23:58 -0400692 int seq = BootSequence + 1;
693 BootSequence = seq;
Kevin O'Connor7af49bf2008-03-09 13:46:13 -0400694 do_boot(seq);
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500695}
696
697// INT 19h Boot Load Service Entry Point
Kevin O'Connor52a300f2009-12-26 23:32:57 -0500698void VISIBLE32FLAT
Kevin O'Connor1ca05b02010-01-03 17:43:37 -0500699handle_19(void)
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500700{
Kevin O'Connor61d6b062008-06-21 12:15:10 -0400701 debug_serial_setup();
Kevin O'Connor15c1f222008-06-12 22:59:43 -0400702 debug_enter(NULL, DEBUG_HDL_19);
Kevin O'Connor9d8e0a62012-05-13 12:23:58 -0400703 BootSequence = 0;
Kevin O'Connor7af49bf2008-03-09 13:46:13 -0400704 do_boot(0);
Kevin O'Connorf076a3e2008-02-25 22:25:15 -0500705}