diff options
| author | Aaron Durbin <adurbin@chromium.org> | 2015-10-07 16:03:41 -0500 |
|---|---|---|
| committer | Aaron Durbin <adurbin@gmail.com> | 2015-10-11 23:57:29 +0000 |
| commit | b593366e349673cd4ef5b933849f78e6e958d626 (patch) | |
| tree | 5489ec29157dbf096b42313c057d5a3fbe84859a /src/commonlib/include | |
| parent | ed253c8fd80573b2182aa5fd27033750cff48c0b (diff) | |
vboot: prepare for x86 verstage
In order to support x86 verstage proper the work buffer
needs to live in cache-as-ram. However, after cache-as-ram
is torn down one still needs the verification results to
know which slot was selected. Though the platforms with
a dedicated SRAM can just use the work buffer in SRAM, the
x86 cache-as-ram platforms need a place to stash the
results. For that situation cbmem is employed. This works
because when cbmem is initialized cache-as-ram is still
enabled. The VBOOT_DYNAMIC_WORK_BUFFER case assumes
verified boot doesn't start until after cbmem is up. That
doesn't change, but it's a goal to get rid of that option
entirely once all other x86 platforms are moved over to
pre-romstage vboot.
BUG=chrome-os-partner:44827
BRANCH=None
TEST=Built and booted glados with pre-romstage verification
as well as VBOOT_DYNAMIC_WORK_BUFFER case.
Change-Id: I7eacd0edb2b6ca52b59b74075d17c00b50676d4c
Signed-off-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-on: http://review.coreboot.org/11821
Tested-by: build bot (Jenkins)
Reviewed-by: Patrick Georgi <pgeorgi@google.com>
Diffstat (limited to 'src/commonlib/include')
| -rw-r--r-- | src/commonlib/include/commonlib/cbmem_id.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/src/commonlib/include/commonlib/cbmem_id.h b/src/commonlib/include/commonlib/cbmem_id.h index 6812c41cc1..4a5b66082b 100644 --- a/src/commonlib/include/commonlib/cbmem_id.h +++ b/src/commonlib/include/commonlib/cbmem_id.h @@ -65,6 +65,7 @@ #define CBMEM_ID_TCPA_LOG 0x54435041 #define CBMEM_ID_TIMESTAMP 0x54494d45 #define CBMEM_ID_VBOOT_HANDOFF 0x780074f0 +#define CBMEM_ID_VBOOT_SEL_REG 0x780074f1 #define CBMEM_ID_VBOOT_WORKBUF 0x78007343 #define CBMEM_ID_WIFI_CALIBRATION 0x57494649 @@ -108,6 +109,7 @@ { CBMEM_ID_TCPA_LOG, "TCPA LOG " }, \ { CBMEM_ID_TIMESTAMP, "TIME STAMP " }, \ { CBMEM_ID_VBOOT_HANDOFF, "VBOOT " }, \ + { CBMEM_ID_VBOOT_SEL_REG, "VBOOT SEL " }, \ { CBMEM_ID_VBOOT_WORKBUF, "VBOOT WORK " }, \ { CBMEM_ID_WIFI_CALIBRATION, "WIFI CLBR " }, #endif /* _CBMEM_ID_H_ */ |