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| author | Patryk Duda <pdk@semihalf.com> | 2020-08-28 13:44:59 +0200 |
|---|---|---|
| committer | Commit Bot <commit-bot@chromium.org> | 2020-09-09 06:11:24 +0000 |
| commit | 2187da39745e802fa89539ed28a9cf3fa9661876 (patch) | |
| tree | 681322be139b896fdbd2d87af032421bcfe5d277 /include/sysjump.h | |
| parent | e09ef0fdb5445b8994298cdee4c991b2dd0bbbac (diff) | |
| download | chrome-ec-2187da39745e802fa89539ed28a9cf3fa9661876.tar.gz | |
Introduce functions that provide safe pointer to panic data
panic_get_data() function should always return pointer to panic_data
structure that can be safely interpreted. When structure layout
left by previous EC is different than ours then panic_get_data()
should return NULL. Difference in layout can occur when we are jumping
from old RO, this happens in eve.
Introduce two new functions:
get_panic_data_start() - It can be used to obtain beginning of panic
data, eg. when copying raw data or when determining where jump data is.
get_panic_data_write() - It can be used to obtain pointer to panic_data
structure that can be safely written. This function moves jump data and
jump tags if necessary.
Signed-off-by: Patryk Duda <pdk@semihalf.com>
Change-Id: If5f73c86e2176a0169b0be4b890e399c2c259740
Reviewed-on: https://chromium-review.googlesource.com/c/chromiumos/platform/ec/+/2379845
Reviewed-by: Jett Rink <jettrink@chromium.org>
Diffstat (limited to 'include/sysjump.h')
| -rw-r--r-- | include/sysjump.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/include/sysjump.h b/include/sysjump.h index a75351a016..0b0bb0ec6b 100644 --- a/include/sysjump.h +++ b/include/sysjump.h @@ -18,6 +18,7 @@ #define JUMP_DATA_MAGIC 0x706d754a /* "Jump" */ #define JUMP_DATA_VERSION 3 +#define JUMP_DATA_SIZE_V1 12 /* Size of version 1 jump data struct */ #define JUMP_DATA_SIZE_V2 16 /* Size of version 2 jump data struct */ struct jump_data { |