diff options
| author | Bill Richardson <wfrichar@chromium.org> | 2012-05-08 14:34:03 -0700 |
|---|---|---|
| committer | Bill Richardson <wfrichar@chromium.org> | 2012-05-10 17:27:36 -0700 |
| commit | 8101b7131651e344807d2bd0ec77542b3196a653 (patch) | |
| tree | df058964eee0efdfe82cfa2bd0f7e6ef013c45b8 /common/uart_buffering.c | |
| parent | 058079977e3d94d05d40e44144549b9d4e391144 (diff) | |
| download | chrome-ec-8101b7131651e344807d2bd0ec77542b3196a653.tar.gz | |
Enable verified boot for EC firmware
BUG=chrome-os-partner:7459
TEST=manual
In the chroot:
cd src/platform/ec
make BOARD=link
The firmware image (build/link/ec.bin) is signed with dev-keys. Reflash the
EC and try it, and it should verify and reboot into RW A.
Additional tests (setting USE_RO_NORMAL, poking random values into VBLOCK_A
or FW_MAIN_A to force RW B to run, etc.) are left as an exercise for the
reader. I've done them and they work, though.
Change-Id: I29a23ea69aef02a11aebd4af3b043f6864723523
Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Diffstat (limited to 'common/uart_buffering.c')
| -rw-r--r-- | common/uart_buffering.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/common/uart_buffering.c b/common/uart_buffering.c index d83b34ea40..5848a30f1d 100644 --- a/common/uart_buffering.c +++ b/common/uart_buffering.c @@ -549,6 +549,11 @@ int uart_printf(const char *format, ...) va_end(args); return rv; } +/* For use when debugging verified boot. We could wrap it with a real function, + * but it's rarely needed and this doesn't add any extra code. We have to + * declare it here in order for this trick to work. */ +void VbExDebug(const char *format, ...) + __attribute__((weak, alias("uart_printf"))); void uart_flush_output(void) |