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vboot: Add multiboot kernel type

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Add a kernel type for signing multiboot kernel images.

BUG=b:38040849
BRANCH=none
TEST=properly sign a multiboot kernel image and then verify
the resulting image.

Change-Id: If00e7c85244bc59853c305e42543f34c5fabf356
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://chromium-review.googlesource.com/497933
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This commit is contained in:
Duncan Laurie
2017-05-05 15:50:32 -07:00
committed by chrome-bot
parent eab2668a1a
commit 42f57403ae
2 changed files with 7 additions and 4 deletions
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4
firmware/include/vboot_struct.h
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@@ -176,7 +176,9 @@ typedef struct VbKernelPreambleHeader {
* Flags passed in by the signer. Readers should return 0 for header
* version < 2.2. Flags field is currently defined as:
* [31:2] - Reserved (for future use)
* [1:0] - Kernel image type (0b00 - CrOS, 0b01 - bootimg)
* [1:0] - Kernel image type (0b00 - CrOS,
* 0b01 - bootimg,
* 0b10 - multiboot)
*/
uint32_t flags;
} __attribute__((packed)) VbKernelPreambleHeader;