diff options
| author | Randall Spangler <rspangler@chromium.org> | 2018-02-26 17:01:24 -0800 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2018-03-07 16:55:15 -0800 |
| commit | a80a79f9f5ca0250eb31330d9dfdacf3a250efb0 (patch) | |
| tree | 8a3bba693db4514e8a8ae5649b94e4c0b7b94605 /firmware/include | |
| parent | 7bb45097af1e8b5f2bcf8e7a8bc6557c6505693b (diff) | |
| download | vboot-a80a79f9f5ca0250eb31330d9dfdacf3a250efb0.tar.gz | |
2lib: Add support for 64-byte nvstorage record
The calling firmware can set ctx->flags VB2_CONTEXT_NVDATA_V2 to tell
vboot that nvdata is a 64-byte record instead of a 16-byte record, or
equivalently, set the VBSD_NVDATA_V2 flag if calling the old vboot1
API.
If calling firmware does not (which is the current coreboot and
depthcharge default), then the 16-byte record is used, and V2 fields
return explicit default values.
Added the fw_max_rollforward V2 field, which defaults to 0xfffffffe on
V1. This will be used by a subsequent CL.
Added unit tests to verify all that.
Added crossystem support, though it will only work with the current
16-byte records until firmware sets the VBSD flag and mosys supports
larger records.
(Note that because coreboot/depthcharge do not yet set the new context
flag, this CL should not change ToT firmware behavior.)
See go/vboot-nvstorage for design doc.
BUG=chromium:789276
BRANCH=none
TEST=make runtests
Change-Id: I43072ef153dfa016c051f560892af1fbb3508e3a
Signed-off-by: Randall Spangler <rspangler@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/942031
Diffstat (limited to 'firmware/include')
| -rw-r--r-- | firmware/include/vboot_struct.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/firmware/include/vboot_struct.h b/firmware/include/vboot_struct.h index 6036dc8f..fd5777a2 100644 --- a/firmware/include/vboot_struct.h +++ b/firmware/include/vboot_struct.h @@ -246,6 +246,8 @@ typedef struct VbKernelPreambleHeader { #define VBSD_NOFAIL_BOOT 0x00040000 /* VbInit() was told that the EC firmware supports EFS */ #define VBSD_EC_EFS 0x00080000 +/* NvStorage uses 64-byte record, not 16-byte */ +#define VBSD_NVDATA_V2 0x00100000 /* * Supported flags by header version. It's ok to add new flags while keeping |