diff options
| author | Tom Wai-Hong Tam <waihong@chromium.org> | 2011-07-15 16:55:21 +0800 |
|---|---|---|
| committer | Simon Glass <sjg@chromium.org> | 2011-08-29 10:59:02 -0700 |
| commit | f4fe2e2dc3cba81df463b21159924b5707ce5607 (patch) | |
| tree | c1287cac8d23d92841d191971cdcf63775a7190b /common/cmd_vbexport_test.c | |
| parent | 98660ae72f5916737d389374d0846741ffeff833 (diff) | |
CHROMIUM: Partially load GBB when needed.
This CL is to make the firmware just load a minimal part of GBB: the header,
HWID (required by crossystem data), and rootkey (required by verifying
firmware). When VbInit() returns VB_INIT_OUT_ENABLE_DISPLAY, firmware then
continues to load the BMP Block. When it returns VB_INIT_OUT_ENABLE_RECOVERY,
firmware loads the recovery key.
We profiled this change. It totally gains 142ms of boot time on Seaboard.
Loads entired GBB in RO normal boot:
2,349,330 bootm_start
Loads minimal required part of GBB in RO normal boot:
2,207,288 bootm_start
BUG=chromium-os:17700
TEST=build chromeos_seaboard_vboot without error;
success to boot normal path;
when developer switch on, bmp showed;
when recovery button pressed, bmp showed;
run "vbexport_test display" to show bmps.
Change-Id: I8d1d8b5676505b05328cfea6a1ff35d1048dc131
Reviewed-on: http://gerrit.chromium.org/gerrit/4287
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Tested-by: Tom Wai-Hong Tam <waihong@chromium.org>
Diffstat (limited to 'common/cmd_vbexport_test.c')
| -rw-r--r-- | common/cmd_vbexport_test.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/common/cmd_vbexport_test.c b/common/cmd_vbexport_test.c index 32baf43452..7da84a0993 100644 --- a/common/cmd_vbexport_test.c +++ b/common/cmd_vbexport_test.c @@ -370,6 +370,11 @@ static uint8_t *read_gbb_from_firmware(void) return NULL; } + if (load_bmpblk_in_gbb(global, &file)) { + VbExDebug("Failed to load BMP Block in GBB!\n"); + return NULL; + } + if (file.close(&file)) { VbExDebug("Failed to close firmware device!\n"); } |