rulimine/stage23/entry.s3.c
2021-03-02 10:23:43 +01:00

95 lines
2.5 KiB
C

#include <lib/term.h>
#include <lib/real.h>
#include <lib/blib.h>
#include <lib/libc.h>
#include <lib/part.h>
#include <lib/config.h>
#include <lib/trace.h>
#include <sys/e820.h>
#include <sys/a20.h>
#include <lib/print.h>
#include <fs/file.h>
#include <lib/elf.h>
#include <mm/pmm.h>
#include <mm/mtrr.h>
#include <protos/stivale.h>
#include <protos/stivale2.h>
#include <protos/linux.h>
#include <protos/chainload.h>
#include <menu.h>
#include <pxe/pxe.h>
#include <pxe/tftp.h>
#if defined (uefi)
EFI_STATUS efi_main(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable) {
(void)ImageHandle;
gST = SystemTable;
gBS = SystemTable->BootServices;
gRT = SystemTable->RuntimeServices;
for (;;);
}
#endif
__attribute__((section(".stage3_build_id")))
uint64_t stage3_build_id = BUILD_ID;
__attribute__((noreturn))
__attribute__((section(".stage3_entry")))
void stage3_entry(int boot_from) {
mtrr_save();
switch (boot_from) {
case BOOT_FROM_HDD:
case BOOT_FROM_CD: {
struct volume boot_volume;
volume_get_by_coord(&boot_volume, boot_drive, -1);
struct volume part = boot_volume;
for (int i = 0; ; i++) {
if (!init_config_disk(&part)) {
print("Config file found and loaded.\n");
boot_partition = i - 1;
break;
}
int ret = part_get(&part, &boot_volume, i);
switch (ret) {
case INVALID_TABLE:
case END_OF_TABLE:
panic("Config file not found.");
}
}
break;
case BOOT_FROM_PXE:
pxe_init();
if (init_config_pxe()) {
panic("Failed to load config file");
}
print("Config loaded via PXE\n");
break;
}
}
char *cmdline;
char *config = menu(&cmdline);
char *proto = config_get_value(config, 0, "PROTOCOL");
if (proto == NULL) {
panic("PROTOCOL not specified");
}
if (!strcmp(proto, "stivale")) {
stivale_load(config, cmdline);
} else if (!strcmp(proto, "stivale2")) {
stivale2_load(config, cmdline, booted_from_pxe);
} else if (!strcmp(proto, "linux")) {
linux_load(config, cmdline);
} else if (!strcmp(proto, "chainload")) {
chainload(config);
} else {
panic("Invalid protocol specified");
}
for (;;);
}