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-rw-r--r--payloads/libpayload/include/coreboot_tables.h11
-rw-r--r--payloads/libpayload/include/sysinfo.h4
-rw-r--r--payloads/libpayload/libc/coreboot.c14
3 files changed, 29 insertions, 0 deletions
diff --git a/payloads/libpayload/include/coreboot_tables.h b/payloads/libpayload/include/coreboot_tables.h
index 0c516b1e49..24cbf453eb 100644
--- a/payloads/libpayload/include/coreboot_tables.h
+++ b/payloads/libpayload/include/coreboot_tables.h
@@ -257,6 +257,17 @@ struct cb_spi_flash {
uint32_t erase_cmd;
};
+#define CB_TAG_BOOT_MEDIA_PARAMS 0x0030
+struct cb_boot_media_params {
+ uint32_t tag;
+ uint32_t size;
+ /* offsets are relative to start of boot media */
+ uint64_t fmap_offset;
+ uint64_t cbfs_offset;
+ uint64_t cbfs_size;
+ uint64_t boot_media_size;
+};
+
#define CB_TAG_SERIALNO 0x002a
#define CB_MAX_SERIALNO_LENGTH 32
diff --git a/payloads/libpayload/include/sysinfo.h b/payloads/libpayload/include/sysinfo.h
index c407c3d16b..b97ae14771 100644
--- a/payloads/libpayload/include/sysinfo.h
+++ b/payloads/libpayload/include/sysinfo.h
@@ -124,6 +124,10 @@ struct sysinfo_t {
uint32_t sector_size;
uint32_t erase_cmd;
} spi_flash;
+ uint64_t fmap_offset;
+ uint64_t cbfs_offset;
+ uint64_t cbfs_size;
+ uint64_t boot_media_size;
uint64_t mtc_start;
uint32_t mtc_size;
};
diff --git a/payloads/libpayload/libc/coreboot.c b/payloads/libpayload/libc/coreboot.c
index 8a5d3ae7f4..3e248e19c3 100644
--- a/payloads/libpayload/libc/coreboot.c
+++ b/payloads/libpayload/libc/coreboot.c
@@ -220,6 +220,17 @@ static void cb_parse_spi_flash(void *ptr, struct sysinfo_t *info)
info->spi_flash.erase_cmd = flash->erase_cmd;
}
+static void cb_parse_boot_media_params(unsigned char *ptr,
+ struct sysinfo_t *info)
+{
+ struct cb_boot_media_params *const bmp =
+ (struct cb_boot_media_params *)ptr;
+ info->fmap_offset = bmp->fmap_offset;
+ info->cbfs_offset = bmp->cbfs_offset;
+ info->cbfs_size = bmp->cbfs_size;
+ info->boot_media_size = bmp->boot_media_size;
+}
+
int cb_parse_header(void *addr, int len, struct sysinfo_t *info)
{
struct cb_header *header;
@@ -372,6 +383,9 @@ int cb_parse_header(void *addr, int len, struct sysinfo_t *info)
case CB_TAG_MTC:
cb_parse_mtc(ptr, info);
break;
+ case CB_TAG_BOOT_MEDIA_PARAMS:
+ cb_parse_boot_media_params(ptr, info);
+ break;
default:
cb_parse_arch_specific(rec, info);
break;