/* init.c - generic EFI initialization and finalization */ /* * GRUB -- GRand Unified Bootloader * Copyright (C) 2006,2007 Free Software Foundation, Inc. * * GRUB is free software: you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation, either version 3 of the License, or * (at your option) any later version. * * GRUB is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. * * You should have received a copy of the GNU General Public License * along with GRUB. If not, see . */ #include #include #include #include #include #include #include #include grub_addr_t grub_modbase; void grub_efi_init (void) { grub_modbase = grub_efi_modules_addr (); /* First of all, initialize the console so that GRUB can display messages. */ grub_console_init (); /* Initialize the memory management system. */ grub_efi_mm_init (); efi_call_4 (grub_efi_system_table->boot_services->set_watchdog_timer, 0, 0, 0, NULL); grub_efidisk_init (); } void (*grub_efi_net_config) (grub_efi_handle_t hnd, char **device, char **path); void grub_machine_get_bootlocation (char **device, char **path) { grub_efi_loaded_image_t *image = NULL; char *p; image = grub_efi_get_loaded_image (grub_efi_image_handle); if (!image) return; *device = grub_efidisk_get_device_name (image->device_handle); *path = grub_efi_get_filename (image->file_path); if (!*device && grub_efi_net_config) grub_efi_net_config (image->device_handle, device, path); if (*path) { /* Get the directory. */ p = grub_strrchr (*path, '/'); if (p) *p = '\0'; } } void * grub_efi_get_firmware_fdt (void) { grub_efi_configuration_table_t *tables; grub_efi_guid_t fdt_guid = GRUB_EFI_DEVICE_TREE_GUID; void *firmware_fdt = NULL; unsigned int i; /* Look for FDT in UEFI config tables. */ tables = grub_efi_system_table->configuration_table; for (i = 0; i < grub_efi_system_table->num_table_entries; i++) if (grub_memcmp (&tables[i].vendor_guid, &fdt_guid, sizeof (fdt_guid)) == 0) { firmware_fdt = tables[i].vendor_table; grub_dprintf ("linux", "found registered FDT @ %p\n", firmware_fdt); break; } return firmware_fdt; } void grub_efi_fini (void) { grub_efidisk_fini (); grub_console_fini (); }