| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2014 The ChromiumOS Authors. All rights reserved. |
| * |
| * This program 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; version 2 of the License. |
| * |
| * This program 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. |
| */ |
| |
| #include <boot/coreboot_tables.h> |
| #include <boot_device.h> |
| #include <cbmem.h> |
| #include <console/cbmem_console.h> |
| #include <console/console.h> |
| #include <fmap.h> |
| #include <reset.h> |
| #include <rules.h> |
| #include <stddef.h> |
| #include <string.h> |
| #include <vboot/vboot_common.h> |
| |
| int vboot_named_region_device(const char *name, struct region_device *rdev) |
| { |
| return fmap_locate_area_as_rdev(name, rdev); |
| } |
| |
| int vboot_named_region_device_rw(const char *name, struct region_device *rdev) |
| { |
| return fmap_locate_area_as_rdev_rw(name, rdev); |
| } |
| |
| /* ========================== VBOOT HANDOFF APIs =========================== */ |
| int vboot_get_handoff_info(void **addr, uint32_t *size) |
| { |
| /* |
| * vboot_handoff is present only after cbmem comes online. If we are in |
| * pre-ram stage, then bail out early. |
| */ |
| if (ENV_BOOTBLOCK || |
| (ENV_VERSTAGE && IS_ENABLED(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK))) |
| return -1; |
| |
| struct vboot_handoff *vboot_handoff; |
| vboot_handoff = cbmem_find(CBMEM_ID_VBOOT_HANDOFF); |
| |
| if (vboot_handoff == NULL) |
| return -1; |
| |
| *addr = vboot_handoff; |
| |
| if (size) |
| *size = sizeof(*vboot_handoff); |
| return 0; |
| } |
| |
| static int vboot_get_handoff_flag(uint32_t flag) |
| { |
| struct vboot_handoff *vbho; |
| |
| /* |
| * If vboot_handoff cannot be found, return default value of flag as 0. |
| */ |
| if (vboot_get_handoff_info((void **)&vbho, NULL)) |
| return 0; |
| |
| return !!(vbho->init_params.out_flags & flag); |
| } |
| |
| int vboot_handoff_skip_display_init(void) |
| { |
| return !vboot_get_handoff_flag(VB_INIT_OUT_ENABLE_DISPLAY); |
| } |
| |
| int vboot_handoff_check_developer_flag(void) |
| { |
| return vboot_get_handoff_flag(VB_INIT_OUT_ENABLE_DEVELOPER); |
| } |
| |
| int vboot_handoff_check_recovery_flag(void) |
| { |
| return vboot_get_handoff_flag(VB_INIT_OUT_ENABLE_RECOVERY); |
| } |
| |
| int vboot_handoff_get_recovery_reason(void) |
| { |
| struct vboot_handoff *vbho; |
| VbSharedDataHeader *sd; |
| |
| if (vboot_get_handoff_info((void **)&vbho, NULL)) |
| return 0; |
| |
| sd = (VbSharedDataHeader *)vbho->shared_data; |
| |
| return sd->recovery_reason; |
| } |
| |
| /* ============================ VBOOT REBOOT ============================== */ |
| void __attribute__((weak)) vboot_platform_prepare_reboot(void) |
| { |
| } |
| |
| void vboot_reboot(void) |
| { |
| if (IS_ENABLED(CONFIG_CONSOLE_CBMEM_DUMP_TO_UART)) |
| cbmem_dump_console(); |
| vboot_platform_prepare_reboot(); |
| hard_reset(); |
| die("failed to reboot"); |
| } |