diff options
Diffstat (limited to 'src/vendorcode/google/chromeos/vboot_handoff.c')
| -rw-r--r-- | src/vendorcode/google/chromeos/vboot_handoff.c | 29 |
1 files changed, 29 insertions, 0 deletions
diff --git a/src/vendorcode/google/chromeos/vboot_handoff.c b/src/vendorcode/google/chromeos/vboot_handoff.c index 937b2e31c0..c3c5a138d7 100644 --- a/src/vendorcode/google/chromeos/vboot_handoff.c +++ b/src/vendorcode/google/chromeos/vboot_handoff.c @@ -18,8 +18,10 @@ */ #include <stddef.h> +#include <string.h> #include "chromeos.h" #include <boot/coreboot_tables.h> +#include <cbfs.h> #include <cbmem.h> #include <console/console.h> #include <payload_loader.h> @@ -52,6 +54,33 @@ int vboot_enable_recovery(void) return !!(vbho->init_params.out_flags & VB_INIT_OUT_ENABLE_RECOVERY); } +void *vboot_get_region(uintptr_t offset_addr, size_t size, void *dest) +{ + if (IS_ENABLED(CONFIG_SPI_FLASH_MEMORY_MAPPED)) { + if (dest != NULL) + return memcpy(dest, (void *)offset_addr, size); + else + return (void *)offset_addr; + } else { + struct cbfs_media default_media, *media = &default_media; + void *cache; + + init_default_cbfs_media(media); + media->open(media); + if (dest != NULL) { + cache = dest; + if (media->read(media, dest, offset_addr, size) != size) + cache = NULL; + } else { + cache = media->map(media, offset_addr, size); + if (cache == CBFS_MEDIA_INVALID_MAP_ADDRESS) + cache = NULL; + } + media->close(media); + return cache; + } +} + static void *vboot_get_payload(size_t *len) { struct vboot_handoff *vboot_handoff; |