cbfs/vboot: remove firmware component support

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>

1 files changed, 0 insertions, 60 deletions

diff --git a/src/lib/cbfs_boot_props.c b/src/lib/cbfs_boot_props.c
deleted file mode 100644
index 7ff3726c4b..0000000000
--- a/src/lib/cbfs_boot_props.c
+++ /dev/null
@@ -1,60 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2015 Google Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
- * GNU General Public License for more details.
- */
-
-#include <boot_device.h>
-#include <cbfs.h>
-#include <console/console.h>
-#include <endian.h>
-#include <commonlib/region.h>
-
-/* This function is marked as weak to allow a particular platform to
- * override the logic. This implementation should work for most devices. */
-int __attribute__((weak)) cbfs_boot_region_properties(struct cbfs_props *props)
-{
-	struct cbfs_header header;
-	const struct region_device *bdev;
-	int32_t rel_offset;
-	size_t offset;
-
-	bdev = boot_device_ro();
-
-	if (bdev == NULL)
-		return -1;
-
-	/* Find location of header using signed 32-bit offset from
-	 * end of CBFS region. */
-	offset = CONFIG_CBFS_SIZE - sizeof(int32_t);
-	if (rdev_readat(bdev, &rel_offset, offset, sizeof(int32_t)) < 0)
-		return -1;
-
-	offset = CONFIG_CBFS_SIZE + rel_offset;
-	if (rdev_readat(bdev, &header, offset, sizeof(header)) < 0)
-		return -1;
-
-	header.magic = ntohl(header.magic);
-	header.romsize = ntohl(header.romsize);
-	header.offset = ntohl(header.offset);
-
-	if (header.magic != CBFS_HEADER_MAGIC)
-		return -1;
-
-	props->offset = header.offset;
-	props->size = header.romsize;
-	props->size -= props->offset;
-
-	printk(BIOS_SPEW, "CBFS @ %zx size %zx\n", props->offset, props->size);
-
-	return 0;
-}