[coreboot-gerrit] Patch set updated for coreboot: cbtable: describe boot media
Patrick Georgi (pgeorgi@google.com)
gerrit at coreboot.org
Tue Jul 14 20:46:43 CEST 2015
Patrick Georgi (pgeorgi at google.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/10867
-gerrit
commit 8e04cc0c44d7963915801eb7f5cea3aeee89b1b0
Author: Patrick Georgi <pgeorgi at chromium.org>
Date: Tue Jul 14 17:15:51 2015 +0100
cbtable: describe boot media
This allows finding the currently used CBFS (in case there are several), and
avoids the need to define flash size when building the payload.
Change-Id: I4b00159610077761c501507e136407e9ae08c73e
Signed-off-by: Aaron Durbin <adurbin at chromium.org>
Signed-off-by: Patrick Georgi <pgeorgi at chromium.org>
---
src/include/boot/coreboot_tables.h | 11 +++++++++++
src/lib/coreboot_table.c | 34 ++++++++++++++++++++++++++++++++++
2 files changed, 45 insertions(+)
diff --git a/src/include/boot/coreboot_tables.h b/src/include/boot/coreboot_tables.h
index c8d5251..3dddde5 100644
--- a/src/include/boot/coreboot_tables.h
+++ b/src/include/boot/coreboot_tables.h
@@ -297,6 +297,17 @@ struct lb_spi_flash {
uint32_t erase_cmd;
};
+#define LB_TAG_BOOT_MEDIA_PARAMS 0x0030
+struct lb_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 LB_TAG_SERIALNO 0x002a
#define MAX_SERIALNO_LENGTH 32
diff --git a/src/lib/coreboot_table.c b/src/lib/coreboot_table.c
index f7fb2bb..a41fb29 100644
--- a/src/lib/coreboot_table.c
+++ b/src/lib/coreboot_table.c
@@ -23,10 +23,12 @@
#include <console/uart.h>
#include <ip_checksum.h>
#include <boot/coreboot_tables.h>
+#include <boot_device.h>
#include <string.h>
#include <version.h>
#include <boardid.h>
#include <device/device.h>
+#include <fmap.h>
#include <stdlib.h>
#include <cbfs.h>
#include <cbmem.h>
@@ -228,6 +230,36 @@ static void lb_board_id(struct lb_header *header)
#endif
}
+static void lb_boot_media_params(struct lb_header *header)
+{
+ struct lb_boot_media_params *bmp;
+ struct cbfs_props props;
+ const struct region_device *boot_dev;
+ struct region_device fmrd;
+
+ boot_device_init();
+
+ if (cbfs_boot_region_properties(&props))
+ return;
+
+ boot_dev = boot_device_ro();
+ if (boot_dev == NULL)
+ return;
+
+ bmp = (struct lb_boot_media_params *)lb_new_record(header);
+ bmp->tag = LB_TAG_BOOT_MEDIA_PARAMS;
+ bmp->size = sizeof(*bmp);
+
+ bmp->cbfs_offset = props.offset;
+ bmp->cbfs_size = props.size;
+ bmp->boot_media_size = region_device_sz(boot_dev);
+
+ bmp->fmap_offset = ~0;
+ if (find_fmap_directory(&fmrd) == 0) {
+ bmp->fmap_offset = region_device_offset(&fmrd);
+ }
+}
+
static void lb_ram_code(struct lb_header *header)
{
#if IS_ENABLED(CONFIG_RAM_CODE_SUPPORT)
@@ -483,6 +515,8 @@ unsigned long write_coreboot_table(
lb_ramoops(head);
#endif
+ lb_boot_media_params(head);
+
/* Remember where my valid memory ranges are */
return lb_table_fini(head);
}
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