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664096bd1a
Originally, we didn't trust the firmware to provide these functions from a standard library. Now, with coreboot, we do. BUG=chromium:611535 BRANCH=none TEST=make runtests; emerge-kevin coreboot depthcharge Change-Id: I4e624c40085f2b665275a38624340b2f6aabcf11 Signed-off-by: Randall Spangler <rspangler@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/399120 Reviewed-by: Daisuke Nojiri <dnojiri@chromium.org>
51 lines
1.2 KiB
C
51 lines
1.2 KiB
C
/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
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* Use of this source code is governed by a BSD-style license that can be
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* found in the LICENSE file.
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*
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* High-level firmware API for loading and verifying rewritable firmware.
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* (Firmware portion)
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*/
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#include "sysincludes.h"
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#include "bmpblk_header.h"
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#include "region.h"
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#include "gbb_access.h"
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#include "gbb_header.h"
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#include "load_kernel_fw.h"
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#include "utility.h"
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#include "vboot_api.h"
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#include "vboot_struct.h"
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VbError_t VbRegionReadData(VbCommonParams *cparams,
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enum vb_firmware_region region, uint32_t offset,
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uint32_t size, void *buf)
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{
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/* This is the old API, for backwards compatibility */
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if (region == VB_REGION_GBB && cparams->gbb_data) {
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if (offset + size > cparams->gbb_size)
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return VBERROR_INVALID_GBB;
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memcpy(buf, cparams->gbb_data + offset, size);
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} else
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#ifdef REGION_READ
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{
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VbError_t ret;
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ret = VbExRegionRead(cparams, region, offset, size, buf);
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if (ret)
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return ret;
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}
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#else
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return VBERROR_INVALID_GBB;
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#endif
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return VBERROR_SUCCESS;
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}
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VbError_t VbGbbReadHeader_static(VbCommonParams *cparams,
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GoogleBinaryBlockHeader *gbb)
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{
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return VbRegionReadData(cparams, VB_REGION_GBB, 0,
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sizeof(GoogleBinaryBlockHeader), gbb);
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}
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