struct ipl_s IPL;
+struct bootentry_s {
+ int type;
+ union {
+ u32 data;
+ struct segoff_s vector;
+ struct drive_s *drive;
+ };
+ int priority;
+ const char *description;
+ struct bootentry_s *next;
+};
+
+static struct bootentry_s *BootList;
+
/****************************************************************
* Boot setup
} while(f);
}
+#define DEFAULT_PRIO 9999
+
+static int DefaultFloppyPrio = 101;
+static int DefaultCDPrio = 102;
+static int DefaultHDPrio = 103;
+static int DefaultBEVPrio = 104;
+
void
boot_setup(void)
{
if (! CONFIG_BOOT)
return;
- dprintf(3, "init boot device ordering\n");
-
- memset(&IPL, 0, sizeof(IPL));
- struct ipl_entry_s *ie = &IPL.bev[0];
-
- // Floppy drive
- ie->type = IPL_TYPE_FLOPPY;
- ie->description = "Floppy";
- ie++;
-
- // First HDD
- ie->type = IPL_TYPE_HARDDISK;
- ie->description = "Hard Disk";
- ie++;
-
- // CDROM
- if (CONFIG_CDROM_BOOT) {
- ie->type = IPL_TYPE_CDROM;
- ie->description = "DVD/CD";
- ie++;
- }
-
- if (CONFIG_COREBOOT && CONFIG_COREBOOT_FLASH) {
- ie->type = IPL_TYPE_CBFS;
- ie->description = "CBFS";
- ie++;
- }
- IPL.bevcount = ie - IPL.bev;
SET_EBDA(boot_sequence, 0xffff);
- if (CONFIG_COREBOOT) {
- // XXX - hardcode defaults for coreboot.
- IPL.bootorder = 0x87654231;
- IPL.checkfloppysig = 1;
- } else {
+ IPL.checkfloppysig = 1;
+
+ if (!CONFIG_COREBOOT) {
// On emulators, get boot order from nvram.
- IPL.bootorder = (inb_cmos(CMOS_BIOS_BOOTFLAG2)
+ if (inb_cmos(CMOS_BIOS_BOOTFLAG1) & 1)
+ IPL.checkfloppysig = 0;
+ u32 bootorder = (inb_cmos(CMOS_BIOS_BOOTFLAG2)
| ((inb_cmos(CMOS_BIOS_BOOTFLAG1) & 0xf0) << 4));
- if (!(inb_cmos(CMOS_BIOS_BOOTFLAG1) & 1))
- IPL.checkfloppysig = 1;
+ DefaultFloppyPrio = DefaultCDPrio = DefaultHDPrio
+ = DefaultBEVPrio = DEFAULT_PRIO;
+ int i;
+ for (i=101; i<104; i++) {
+ u32 val = bootorder & 0x0f;
+ bootorder >>= 4;
+ switch (val) {
+ case 1: DefaultFloppyPrio = i; break;
+ case 2: DefaultHDPrio = i; break;
+ case 3: DefaultCDPrio = i; break;
+ case 4: DefaultBEVPrio = i; break;
+ }
+ }
}
loadBootOrder();
* IPL and BCV handlers
****************************************************************/
-// Add a BEV vector for a given pnp compatible option rom.
-void
-add_bev(u16 seg, u16 bev, u16 desc)
+static void
+bootentry_add(int type, int prio, u32 data, const char *desc)
{
if (! CONFIG_BOOT)
return;
- if (IPL.bevcount >= ARRAY_SIZE(IPL.bev))
+ struct bootentry_s *be = malloc_tmp(sizeof(*be));
+ if (!be) {
+ warn_noalloc();
return;
-
- struct ipl_entry_s *ie = &IPL.bev[IPL.bevcount++];
- ie->type = IPL_TYPE_BEV;
- ie->vector = (seg << 16) | bev;
- const char *d = "Unknown";
- if (desc)
- d = MAKE_FLATPTR(seg, desc);
- ie->description = d;
+ }
+ be->type = type;
+ be->priority = prio;
+ be->data = data;
+ be->description = desc;
+
+ // Add entry in sorted order.
+ struct bootentry_s **pprev;
+ for (pprev = &BootList; *pprev; pprev = &(*pprev)->next) {
+ struct bootentry_s *pos = *pprev;
+ if (be->priority < pos->priority)
+ break;
+ if (be->priority > pos->priority)
+ continue;
+ if (be->type < pos->type)
+ break;
+ if (be->type > pos->type)
+ continue;
+ if (be->type <= IPL_TYPE_CDROM
+ && (be->drive->type < pos->drive->type
+ || (be->drive->type == pos->drive->type
+ && be->drive->cntl_id < pos->drive->cntl_id)))
+ break;
+ }
+ be->next = *pprev;
+ *pprev = be;
}
-// Add a IPL entry for BAID cdrom.
+// Add a BEV vector for a given pnp compatible option rom.
void
-add_baid_cdrom(struct drive_s *drive_g)
+boot_add_bev(u16 seg, u16 bev, u16 desc)
{
- if (! CONFIG_CDROM_BOOT)
- return;
-
- /* put first cdrom into ipl 3 for compatability with qemu */
- struct ipl_entry_s *ie = &IPL.bev[2];
- if (IPL.bevcount >= ARRAY_SIZE(IPL.bev) && ie->vector)
- return;
-
- if (ie->vector)
- ie = &IPL.bev[IPL.bevcount++];
- ie->type = IPL_TYPE_CDROM;
- ie->vector = (u32)drive_g;
- ie->description = "DVD/CD";
+ bootentry_add(IPL_TYPE_BEV, DefaultBEVPrio, SEGOFF(seg, bev).segoff
+ , desc ? MAKE_FLATPTR(seg, desc) : "Unknown");
+ DefaultBEVPrio = DEFAULT_PRIO;
}
// Add a bcv entry for an expansion card harddrive or legacy option rom
void
-add_bcv(u16 seg, u16 ip, u16 desc)
+boot_add_bcv(u16 seg, u16 ip, u16 desc)
{
- if (! CONFIG_BOOT)
- return;
- if (IPL.bcvcount >= ARRAY_SIZE(IPL.bcv))
- return;
-
- struct ipl_entry_s *ie = &IPL.bcv[IPL.bcvcount++];
- ie->type = BCV_TYPE_EXTERNAL;
- ie->vector = (seg << 16) | ip;
- const char *d = "Legacy option rom";
- if (desc)
- d = MAKE_FLATPTR(seg, desc);
- ie->description = d;
+ bootentry_add(IPL_TYPE_BCV, DEFAULT_PRIO, SEGOFF(seg, ip).segoff
+ , desc ? MAKE_FLATPTR(seg, desc) : "Legacy option rom");
}
-// Add a bcv entry for an internal harddrive
void
-add_bcv_internal(struct drive_s *drive_g)
+boot_add_floppy(struct drive_s *drive_g)
{
- if (! CONFIG_BOOT)
- return;
- if (IPL.bcvcount >= ARRAY_SIZE(IPL.bcv))
- return;
-
- struct ipl_entry_s *ie = &IPL.bcv[IPL.bcvcount++];
- if (CONFIG_THREADS) {
- // Add to bcv list with assured drive order.
- struct ipl_entry_s *end = ie;
- for (;;) {
- struct ipl_entry_s *prev = ie - 1;
- if (prev < IPL.bcv || prev->type != BCV_TYPE_INTERNAL)
- break;
- struct drive_s *prevdrive = (void*)prev->vector;
- if (prevdrive->type < drive_g->type
- || (prevdrive->type == drive_g->type
- && prevdrive->cntl_id < drive_g->cntl_id))
- break;
- ie--;
- }
- if (ie != end)
- memmove(ie+1, ie, (void*)end-(void*)ie);
- }
- ie->type = BCV_TYPE_INTERNAL;
- ie->vector = (u32)drive_g;
- ie->description = "";
+ bootentry_add(IPL_TYPE_FLOPPY, DefaultFloppyPrio, (u32)drive_g
+ , drive_g->desc);
}
-
-/****************************************************************
- * Boot menu and BCV execution
- ****************************************************************/
-
-// Show a generic menu item
-static int
-menu_show_default(struct ipl_entry_s *ie, int menupos)
+void
+boot_add_hd(struct drive_s *drive_g)
{
- char desc[33];
- printf("%d. %s\n", menupos
- , strtcpy(desc, ie->description, ARRAY_SIZE(desc)));
- return 1;
+ bootentry_add(IPL_TYPE_HARDDISK, DefaultHDPrio, (u32)drive_g
+ , drive_g->desc);
}
-// Show floppy menu item - but only if there exists a floppy drive.
-static int
-menu_show_floppy(struct ipl_entry_s *ie, int menupos)
+void
+boot_add_cd(struct drive_s *drive_g)
{
- int i;
- for (i = 0; i < Drives.floppycount; i++) {
- struct drive_s *drive_g = getDrive(EXTTYPE_FLOPPY, i);
- printf("%d. Floppy [%s]\n", menupos + i, drive_g->desc);
- }
- return Drives.floppycount;
+ bootentry_add(IPL_TYPE_CDROM, DefaultCDPrio, (u32)drive_g
+ , drive_g->desc);
}
-// Show menu items from BCV list.
-static int
-menu_show_harddisk(struct ipl_entry_s *ie, int menupos)
+// Add a CBFS payload entry
+void
+boot_add_cbfs(void *data, const char *desc)
{
- int i;
- for (i = 0; i < IPL.bcvcount; i++) {
- struct ipl_entry_s *ie = &IPL.bcv[i];
- struct drive_s *drive_g = (void*)ie->vector;
- switch (ie->type) {
- case BCV_TYPE_INTERNAL:
- printf("%d. %s\n", menupos + i, drive_g->desc);
- break;
- default:
- menu_show_default(ie, menupos+i);
- break;
- }
- }
- return IPL.bcvcount;
+ bootentry_add(IPL_TYPE_CBFS, DEFAULT_PRIO, (u32)data, desc);
}
-// Show cdrom menu item - but only if there exists a cdrom drive.
-static int
-menu_show_cdrom(struct ipl_entry_s *ie, int menupos)
-{
- struct drive_s *drive_g = (void*)ie->vector;
- if (!ie->vector)
- return 0;
- printf("%d. DVD/CD [%s]\n", menupos, drive_g->desc);
- return 1;
-}
-// Show coreboot-fs menu item.
-static int
-menu_show_cbfs(struct ipl_entry_s *ie, int menupos)
-{
- int count = 0;
- struct cbfs_file *file = NULL;
- for (;;) {
- file = cbfs_findprefix("img/", file);
- if (!file)
- break;
- const char *filename = cbfs_filename(file);
- printf("%d. Payload [%s]\n", menupos + count, &filename[4]);
- count++;
- if (count > 8)
- break;
- }
- return count;
-}
+/****************************************************************
+ * Boot menu and BCV execution
+ ****************************************************************/
// Show IPL option menu.
static void
printf("Select boot device:\n\n");
wait_threads();
- int subcount[ARRAY_SIZE(IPL.bev)];
- int menupos = 1;
- int i;
- for (i = 0; i < IPL.bevcount; i++) {
- struct ipl_entry_s *ie = &IPL.bev[i];
- int sc;
- switch (ie->type) {
- case IPL_TYPE_FLOPPY:
- sc = menu_show_floppy(ie, menupos);
- break;
- case IPL_TYPE_HARDDISK:
- sc = menu_show_harddisk(ie, menupos);
- break;
- case IPL_TYPE_CDROM:
- sc = menu_show_cdrom(ie, menupos);
- break;
- case IPL_TYPE_CBFS:
- sc = menu_show_cbfs(ie, menupos);
- break;
- default:
- sc = menu_show_default(ie, menupos);
- break;
- }
- subcount[i] = sc;
- menupos += sc;
+ // Show menu items
+ struct bootentry_s *pos = BootList;
+ int maxmenu = 0;
+ while (pos) {
+ char desc[60];
+ maxmenu++;
+ printf("%d. %s\n", maxmenu
+ , strtcpy(desc, pos->description, ARRAY_SIZE(desc)));
+ pos = pos->next;
}
for (;;) {
if (scan_code == 0x01)
// ESC
break;
- if (scan_code < 1 || scan_code > menupos)
+ if (scan_code < 1 || scan_code > maxmenu+1)
continue;
int choice = scan_code - 1;
- // Find out which IPL this was for.
- int bev = 0;
- while (choice > subcount[bev]) {
- choice -= subcount[bev];
- bev++;
- }
- IPL.bev[bev].subchoice = choice-1;
-
- // Add user choice to the boot order.
- IPL.bootorder = (IPL.bootorder << 4) | (bev+1);
+ // Find entry and make top priority.
+ struct bootentry_s **pprev = &BootList;
+ while (--choice)
+ pprev = &(*pprev)->next;
+ pos = *pprev;
+ *pprev = pos->next;
+ pos->next = BootList;
+ BootList = pos;
+ pos->priority = 0;
break;
}
printf("\n");
}
-// Run the specified bcv.
+static int HaveHDBoot, HaveFDBoot;
+
static void
-run_bcv(struct ipl_entry_s *ie)
+add_bev(int type, u32 vector)
{
- switch (ie->type) {
- case BCV_TYPE_INTERNAL:
- map_hd_drive((void*)ie->vector);
- break;
- case BCV_TYPE_EXTERNAL:
- call_bcv(ie->vector >> 16, ie->vector & 0xffff);
- break;
- }
+ if (type == IPL_TYPE_HARDDISK && HaveHDBoot++)
+ return;
+ if (type == IPL_TYPE_FLOPPY && HaveFDBoot++)
+ return;
+ if (IPL.bevcount >= ARRAY_SIZE(IPL.bev))
+ return;
+ struct ipl_entry_s *bev = &IPL.bev[IPL.bevcount++];
+ bev->type = type;
+ bev->vector = vector;
}
// Prepare for boot - show menu and run bcvs.
interactive_bootmenu();
wait_threads();
- // Setup floppy boot order
- int override = IPL.bev[0].subchoice;
- struct drive_s *tmp = Drives.idmap[EXTTYPE_FLOPPY][0];
- Drives.idmap[EXTTYPE_FLOPPY][0] = Drives.idmap[EXTTYPE_FLOPPY][override];
- Drives.idmap[EXTTYPE_FLOPPY][override] = tmp;
+ // Map drives and populate BEV list
+ struct bootentry_s *pos = BootList;
+ while (pos) {
+ switch (pos->type) {
+ case IPL_TYPE_BCV:
+ call_bcv(pos->vector.seg, pos->vector.offset);
+ add_bev(IPL_TYPE_HARDDISK, 0);
+ break;
+ case IPL_TYPE_FLOPPY:
+ map_floppy_drive(pos->drive);
+ add_bev(IPL_TYPE_FLOPPY, 0);
+ break;
+ case IPL_TYPE_HARDDISK:
+ map_hd_drive(pos->drive);
+ add_bev(IPL_TYPE_HARDDISK, 0);
+ break;
+ case IPL_TYPE_CDROM:
+ map_cd_drive(pos->drive);
+ // NO BREAK
+ default:
+ add_bev(pos->type, pos->data);
+ break;
+ }
+ pos = pos->next;
+ }
- // Run BCVs
- override = IPL.bev[1].subchoice;
- if (override < IPL.bcvcount)
- run_bcv(&IPL.bcv[override]);
- int i;
- for (i=0; i<IPL.bcvcount; i++)
- if (i != override)
- run_bcv(&IPL.bcv[i]);
+ // If nothing added a floppy/hd boot - add it manually.
+ add_bev(IPL_TYPE_FLOPPY, 0);
+ add_bev(IPL_TYPE_HARDDISK, 0);
}
if (!ie->vector)
return;
+ printf("Booting from DVD/CD...\n");
struct drive_s *drive_g = (void*)ie->vector;
int status = cdrom_boot(drive_g);
{
if (!CONFIG_COREBOOT || !CONFIG_COREBOOT_FLASH)
return;
- int count = ie->subchoice;
- struct cbfs_file *file = NULL;
- for (;;) {
- file = cbfs_findprefix("img/", file);
- if (!file)
- return;
- if (count--)
- continue;
- cbfs_run_payload(file);
- }
+ printf("Booting from CBFS...\n");
+ cbfs_run_payload((void*)ie->vector);
}
static void
if (! CONFIG_BOOT)
panic("Boot support not compiled in.\n");
- u32 bootdev = IPL.bootorder;
- bootdev >>= 4 * seq_nr;
- bootdev &= 0xf;
-
- /* Translate bootdev to an IPL table offset by subtracting 1 */
- bootdev -= 1;
-
- if (bootdev >= IPL.bevcount) {
+ if (seq_nr >= IPL.bevcount) {
printf("No bootable device.\n");
// Loop with irqs enabled - this allows ctrl+alt+delete to work.
for (;;)
wait_irq();
}
- /* Do the loading, and set up vector as a far pointer to the boot
- * address, and bootdrv as the boot drive */
- struct ipl_entry_s *ie = &IPL.bev[bootdev];
- char desc[33];
- printf("Booting from %s...\n"
- , strtcpy(desc, ie->description, ARRAY_SIZE(desc)));
-
+ // Boot the given BEV type.
+ struct ipl_entry_s *ie = &IPL.bev[seq_nr];
switch (ie->type) {
case IPL_TYPE_FLOPPY:
+ printf("Booting from Floppy...\n");
boot_disk(0x00, IPL.checkfloppysig);
break;
case IPL_TYPE_HARDDISK:
+ printf("Booting from Hard Disk...\n");
boot_disk(0x80, 1);
break;
case IPL_TYPE_CDROM:
boot_cbfs(ie);
break;
case IPL_TYPE_BEV:
+ printf("Booting from ROM...\n");
call_boot_entry(ie->vector >> 16, ie->vector & 0xffff, 0);
break;
}
projects / seabios.git / commitdiff