mirror of
https://github.com/limine-bootloader/limine
synced 2024-12-12 09:44:04 +03:00
145 lines
3.7 KiB
C
145 lines
3.7 KiB
C
#include <lib/term.h>
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#include <lib/real.h>
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#include <lib/blib.h>
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#include <lib/libc.h>
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#include <lib/part.h>
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#include <lib/config.h>
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#include <lib/trace.h>
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#include <sys/e820.h>
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#include <sys/a20.h>
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#include <lib/print.h>
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#include <fs/file.h>
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#include <lib/elf.h>
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#include <mm/pmm.h>
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#include <mm/mtrr.h>
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#include <protos/stivale.h>
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#include <protos/stivale2.h>
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#include <protos/linux.h>
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#include <protos/chainload.h>
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#include <menu.h>
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#include <pxe/pxe.h>
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#include <pxe/tftp.h>
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#include <drivers/disk.h>
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void stage3_common(void);
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#if defined (uefi)
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EFI_STATUS EFIAPI efi_main(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable) {
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gST = SystemTable;
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gBS = SystemTable->BootServices;
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gRT = SystemTable->RuntimeServices;
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print("Limine " LIMINE_VERSION "\n\n", print);
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disk_create_index();
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EFI_GUID loaded_img_prot_guid = EFI_LOADED_IMAGE_PROTOCOL_GUID;
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EFI_LOADED_IMAGE_PROTOCOL *loaded_image = NULL;
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uefi_call_wrapper(gBS->HandleProtocol, 3, ImageHandle, &loaded_img_prot_guid,
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&loaded_image);
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struct volume *boot_volume = disk_volume_from_efi_handle(loaded_image->DeviceHandle);
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if (boot_volume == NULL) {
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panic("Can't determine boot disk");
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}
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if (boot_volume->backing_dev != NULL) {
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boot_volume = boot_volume->backing_dev;
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int part_cnt = 0;
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for (size_t i = 0; ; i++) {
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if (part_cnt > boot_volume->max_partition)
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break;
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struct volume *volume = volume_get_by_coord(boot_volume->drive, i);
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if (volume == NULL)
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continue;
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part_cnt++;
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if (!init_config_disk(volume)) {
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print("Config file found and loaded.\n");
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boot_partition = i;
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boot_drive = boot_volume->drive;
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goto config_loaded;
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}
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}
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panic("Config file not found.");
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} else {
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struct volume *volume = volume_get_by_coord(boot_volume->drive, -1);
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if (volume == NULL)
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panic("Config file not found.");
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if (!init_config_disk(volume)) {
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print("Config file found and loaded.\n");
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boot_partition = -1;
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boot_drive = boot_volume->drive;
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goto config_loaded;
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}
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panic("Config file not found.");
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}
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config_loaded:
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print("Boot drive: %x\n", boot_drive);
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print("Boot partition: %d\n", boot_partition);
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stage3_common();
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}
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#endif
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#if defined (bios)
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__attribute__((section(".stage3_build_id")))
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uint64_t stage3_build_id = BUILD_ID;
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__attribute__((noreturn))
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__attribute__((section(".stage3_entry")))
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void stage3_entry(int boot_from) {
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(void)boot_from;
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mtrr_save();
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struct volume *boot_volume = volume_get_by_coord(boot_drive, -1);
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volume_iterate_parts(boot_volume,
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if (!init_config_disk(_PART)) {
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print("Config file found and loaded.\n");
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boot_partition = _PARTNO;
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boot_drive = _PART->drive;
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break;
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}
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);
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stage3_common();
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}
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#endif
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__attribute__((noreturn))
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void stage3_common(void) {
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char *cmdline;
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char *config = menu(&cmdline);
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char *proto = config_get_value(config, 0, "PROTOCOL");
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if (proto == NULL) {
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panic("PROTOCOL not specified");
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}
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if (0) {
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} else if (!strcmp(proto, "stivale")) {
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stivale_load(config, cmdline);
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} else if (!strcmp(proto, "stivale2")) {
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stivale2_load(config, cmdline, booted_from_pxe);
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#if defined (bios)
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} else if (!strcmp(proto, "linux")) {
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linux_load(config, cmdline);
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} else if (!strcmp(proto, "chainload")) {
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chainload(config);
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#endif
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}
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panic("Invalid protocol specified");
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}
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