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cbfs/vboot: remove firmware component support

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The Chrome OS verified boot path supported multiple CBFS
instances in the boot media as well as stand-alone assets
sitting in each vboot RW slot. Remove the support for the
stand-alone assets and always use CBFS accesses as the
way to retrieve data.

This is implemented by adding a cbfs_locator object which
is queried for locating the current CBFS. Additionally, it
is also signalled prior to when a program is about to be
loaded by coreboot for the subsequent stage/payload. This
provides the same opportunity as previous for vboot to
hook in and perform its logic.

BUG=chromium:445938
BRANCH=None
TEST=Built and ran on glados.
CQ-DEPEND=CL:307121,CL:31691,CL:31690

Change-Id: I6a3a15feb6edd355d6ec252c36b6f7885b383099
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: https://review.coreboot.org/12689
Tested-by: build bot (Jenkins)
Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com>
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Reviewed-by: Stefan Reinauer <stefan.reinauer@coreboot.org>
This commit is contained in:
Aaron Durbin
2015-12-08 17:00:23 -06:00
parent bf3dbaf86d
commit 6d720f38e0
26 changed files with 206 additions and 335 deletions
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10
src/arch/x86/mmap_boot.c
View File

@@ -14,7 +14,6 @@
*/
#include <boot_device.h>
#include <console/console.h>
#include <cbfs.h>
#include <endian.h>
#include <stdlib.h>
@@ -30,7 +29,7 @@ const struct region_device *boot_device_ro(void)
return &boot_dev.rdev;
}
int cbfs_boot_region_properties(struct cbfs_props *props)
static int cbfs_master_header_props(struct cbfs_props *props)
{
struct cbfs_header header;
int32_t offset;
@@ -63,7 +62,10 @@ int cbfs_boot_region_properties(struct cbfs_props *props)
props->size -= header.bootblocksize;
props->size = ALIGN_DOWN(props->size, 64);
printk(BIOS_DEBUG, "CBFS @ %zx size %zx\n", props->offset, props->size);
return 0;
}
const struct cbfs_locator cbfs_master_header_locator = {
.name = "Master Header Locator",
.locate = cbfs_master_header_props,
};