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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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12
src/drivers/intel/fsp1_1/car.c
View File

@@ -14,11 +14,11 @@
*/
#include <arch/early_variables.h>
#include <assets.h>
#include <console/console.h>
#include <ec/google/chromeec/ec.h>
#include <fsp/car.h>
#include <fsp/util.h>
#include <program_loading.h>
#include <soc/intel/common/util.h>
#include <timestamp.h>
@@ -79,15 +79,17 @@ asmlinkage void *romstage_after_verstage(void)
/* Need to locate the current FSP_INFO_HEADER. The cache-as-ram
* is still enabled. We can directly access work buffer here. */
FSP_INFO_HEADER *fih;
struct asset fsp = ASSET_INIT(ASSET_REFCODE, "fsp.bin");
struct prog fsp = PROG_INIT(ASSET_REFCODE, "fsp.bin");
console_init();
if (asset_locate(&fsp)) {
if (prog_locate(&fsp)) {
fih = NULL;
printk(BIOS_ERR, "Unable to locate %s\n", asset_name(&fsp));
printk(BIOS_ERR, "Unable to locate %s\n", prog_name(&fsp));
} else
fih = find_fsp((uintptr_t)asset_mmap(&fsp));
/* This leaks a mapping which this code assumes is benign as
* the flash is memory mapped CPU's address space. */
fih = find_fsp((uintptr_t)rdev_mmap_full(prog_rdev(&fsp)));
set_fih_car(fih);