2021-12-31 12:58:05 +03:00
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#include <stddef.h>
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#include <stdint.h>
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#include <stdnoreturn.h>
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2020-09-02 10:55:56 +03:00
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#include <lib/term.h>
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2019-05-31 06:47:13 +03:00
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#include <lib/real.h>
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2020-01-22 07:02:12 +03:00
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#include <lib/blib.h>
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2020-03-25 23:05:14 +03:00
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#include <lib/libc.h>
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2020-04-15 14:21:44 +03:00
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#include <lib/part.h>
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2020-01-22 09:13:19 +03:00
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#include <lib/config.h>
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2020-11-15 19:56:10 +03:00
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#include <lib/trace.h>
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2020-09-18 21:02:10 +03:00
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#include <sys/e820.h>
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2020-10-15 12:35:49 +03:00
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#include <sys/a20.h>
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2021-09-21 18:28:32 +03:00
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#include <sys/idt.h>
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2021-11-25 23:51:41 +03:00
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#include <sys/gdt.h>
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2020-05-10 01:38:27 +03:00
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#include <lib/print.h>
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2020-04-14 06:20:55 +03:00
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#include <fs/file.h>
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2020-03-25 03:04:18 +03:00
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#include <lib/elf.h>
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2020-09-20 13:03:44 +03:00
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#include <mm/pmm.h>
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2020-06-05 21:27:52 +03:00
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#include <menu.h>
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2020-11-05 03:37:45 +03:00
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#include <pxe/pxe.h>
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#include <pxe/tftp.h>
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2021-03-04 03:42:25 +03:00
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#include <drivers/disk.h>
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2021-09-21 12:11:52 +03:00
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#include <sys/lapic.h>
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2021-11-29 00:30:05 +03:00
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#include <lib/readline.h>
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2020-04-21 19:27:05 +03:00
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2021-03-11 02:23:44 +03:00
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void stage3_common(void);
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2021-03-04 00:38:28 +03:00
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2021-07-15 11:03:47 +03:00
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#if uefi == 1
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2022-08-25 22:50:37 +03:00
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extern symbol __image_base;
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2021-12-31 12:58:05 +03:00
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noreturn void uefi_entry(EFI_HANDLE ImageHandle, EFI_SYSTEM_TABLE *SystemTable) {
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2021-03-02 12:23:43 +03:00
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gST = SystemTable;
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gBS = SystemTable->BootServices;
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gRT = SystemTable->RuntimeServices;
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2021-03-05 06:20:58 +03:00
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efi_image_handle = ImageHandle;
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2021-03-02 12:23:43 +03:00
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2021-05-06 05:31:05 +03:00
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EFI_STATUS status;
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2021-09-21 19:56:20 +03:00
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status = gBS->SetWatchdogTimer(0, 0x10000, 0, NULL);
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if (status) {
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2022-08-14 16:09:57 +03:00
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term_vbe(NULL, 0, 0);
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2021-10-09 14:32:57 +03:00
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early_term = true;
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2021-09-21 19:56:20 +03:00
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print("WARNING: Failed to disable watchdog timer!\n");
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}
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2021-11-20 23:47:51 +03:00
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term_notready();
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2021-03-05 08:10:58 +03:00
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init_memmap();
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2022-08-18 18:32:54 +03:00
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#if defined (__x86_64__) || defined (__i386__)
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2021-11-25 23:51:41 +03:00
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init_gdt();
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2022-08-18 18:32:54 +03:00
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#endif
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2021-11-25 23:51:41 +03:00
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2022-08-25 22:53:48 +03:00
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#if defined (__x86_64__)
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2022-08-25 22:50:37 +03:00
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if ((uintptr_t)__image_base > 0x100000000) {
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panic(false, "Limine does not support being loaded above 4GiB");
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}
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2022-08-25 22:53:48 +03:00
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#endif
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2022-08-25 22:50:37 +03:00
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2021-03-04 11:15:10 +03:00
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disk_create_index();
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2021-03-04 00:38:28 +03:00
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2021-09-02 03:11:15 +03:00
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boot_volume = NULL;
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2021-05-06 05:31:05 +03:00
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EFI_HANDLE current_handle = ImageHandle;
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for (;;) {
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2021-09-02 03:11:15 +03:00
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if (current_handle == NULL) {
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2022-08-14 16:09:57 +03:00
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term_vbe(NULL, 0, 0);
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2021-10-09 14:32:57 +03:00
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early_term = true;
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2021-09-02 03:11:15 +03:00
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print("WARNING: Could not meaningfully match the boot device handle with a volume.\n");
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print(" Using the first volume containing a Limine configuration!\n");
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for (size_t i = 0; i < volume_index_i; i++) {
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2021-10-21 02:27:05 +03:00
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struct file_handle *f;
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2021-09-02 03:11:15 +03:00
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2021-10-21 02:27:05 +03:00
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if ((f = fopen(volume_index[i], "/limine.cfg")) == NULL
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&& (f = fopen(volume_index[i], "/boot/limine.cfg")) == NULL
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&& (f = fopen(volume_index[i], "/EFI/BOOT/limine.cfg")) == NULL) {
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2021-09-02 03:11:15 +03:00
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continue;
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}
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2021-10-21 02:27:05 +03:00
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fclose(f);
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2021-09-02 03:11:15 +03:00
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if (volume_index[i]->backing_dev != NULL) {
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boot_volume = volume_index[i]->backing_dev;
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} else {
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boot_volume = volume_index[i];
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}
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break;
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}
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if (boot_volume != NULL)
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stage3_common();
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2021-12-11 21:58:00 +03:00
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panic(false, "No volume contained a Limine configuration file");
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2021-09-02 03:11:15 +03:00
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}
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2021-05-06 05:31:05 +03:00
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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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2021-03-04 00:38:28 +03:00
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2021-08-25 23:03:00 +03:00
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status = gBS->HandleProtocol(current_handle, &loaded_img_prot_guid,
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(void **)&loaded_image);
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2021-03-04 00:38:28 +03:00
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2021-05-06 05:31:05 +03:00
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if (status) {
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2021-12-11 21:58:00 +03:00
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panic(false, "HandleProtocol failure (%x)", status);
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2021-05-06 05:31:05 +03:00
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}
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2021-03-04 00:38:28 +03:00
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2021-05-06 05:31:05 +03:00
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boot_volume = disk_volume_from_efi_handle(loaded_image->DeviceHandle);
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2021-04-11 02:26:50 +03:00
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2021-05-06 05:31:05 +03:00
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if (boot_volume != NULL)
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stage3_common();
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current_handle = loaded_image->ParentHandle;
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}
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2021-03-02 12:23:43 +03:00
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}
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#endif
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2021-12-31 12:58:05 +03:00
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noreturn void stage3_common(void) {
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2022-01-25 10:41:17 +03:00
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term_notready();
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2022-08-18 18:32:54 +03:00
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#if defined (__x86_64__) || defined (__i386__)
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2021-09-21 19:40:23 +03:00
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init_flush_irqs();
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init_io_apics();
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2022-08-18 18:32:54 +03:00
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#endif
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2021-09-21 19:40:23 +03:00
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2021-12-11 17:34:30 +03:00
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menu(true);
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2020-04-15 14:21:44 +03:00
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}
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