vboot: Add flag to vbutil_kernel for reconstruction of vmlinuz image
Adding functionality to allow for rebuilding of vmlinuz after it
has been processed into vblock and header stripped. Basically appends
the 16-bit header of a vmlinuz image onto the end of the vblock.
BUG=chromium:438302
BRANCH=none
TEST=Successfully ran "make runalltests".
Also, ran:
1. Repack kernel block (so that 16-bit header is included):
"vbutil_kernel --pack kern_0 ..."
2. Verify kernel: "vbutil_kernel --verify kern_0 ... ". This should
be done before booting into kernel, but not necessary for it to work.
3. Rebuild vmlinuz image:
"vbutil_kernel --get-vmlinuz kern_0 --vmlinuz-out vm.out"
4. Set up kexec with vmlinuz (this should complete with no errors):
"kexec -l vm.out (other kernel cmd line args)"
5. Boot into kernel:
"kexec -e"
Change-Id: Iaa1582a1aedf70b43cdb3a56cde1fb248f1793d4
Signed-off-by: Shelley Chen <shchen@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/232750
Reviewed-by: Furquan Shaikh <furquan@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
diff --git a/tests/vboot_common_tests.c b/tests/vboot_common_tests.c
index 7cfea90..8fd021a 100644
--- a/tests/vboot_common_tests.c
+++ b/tests/vboot_common_tests.c
@@ -31,7 +31,7 @@
TEST_EQ(EXPECTED_VBFIRMWAREPREAMBLEHEADER2_1_SIZE,
sizeof(VbFirmwarePreambleHeader),
"sizeof(VbFirmwarePreambleHeader)");
- TEST_EQ(EXPECTED_VBKERNELPREAMBLEHEADER_SIZE,
+ TEST_EQ(EXPECTED_VBKERNELPREAMBLEHEADER2_1_SIZE,
sizeof(VbKernelPreambleHeader),
"sizeof(VbKernelPreambleHeader)");