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Add bits to request and acknowledge Option ROM loading.

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For fastest boot, we don't want to load the VGA Option ROM every time, but
only when we need it. Coreboot does that loading, but it can't always know
when it's needed (with keyboard-based dev-mode, coreboot can't tell if we're
in dev-mode or not). By the time we get to U-Boot, it's too late, so we need
two extra bits - one for vboot to tell coreboot to load the Option ROM and
another for coreboot to let vboot know it's been done.

BUG=chrome-os-partner:8789
TEST=manual

The only visible change is that crossystem will now have an "oprom_needed"
flag that can be set or cleared. Nothing actually pays attention to it yet,
though.

Signed-off-by: Bill Richardson <wfrichar@chromium.org>
Change-Id: I521a6afdfb8ea17a8148b32eeb858844c981de9c
Reviewed-on: https://gerrit.chromium.org/gerrit/26272
Reviewed-by: Randall Spangler <rspangler@chromium.org>
This commit is contained in:
Bill Richardson
2012-06-26 16:33:56 -07:00
committed by Gerrit
parent 66b47ba37d
commit 17b8224ea5
7 changed files with 26 additions and 2 deletions
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2
firmware/lib/vboot_api_init.c
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@@ -58,6 +58,8 @@ VbError_t VbInit(VbCommonParams* cparams, VbInitParams* iparams) {
shared->flags |= VBSD_BOOT_S3_RESUME;
if (iparams->flags & VB_INIT_FLAG_RO_NORMAL_SUPPORT)
shared->flags |= VBSD_BOOT_RO_NORMAL_SUPPORT;
if (iparams->flags & VB_INIT_FLAG_OPROM_LOADED)
shared->flags |= VBSD_BOOT_OPROM_LOADED;
is_s3_resume = (iparams->flags & VB_INIT_FLAG_S3_RESUME ? 1 : 0);