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Add GBB flags to enable dev mode by default

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And enable dev_boot_usb by default.
And disable rollback checks.

The first flag is necessary for factory to build with keyboard
controlled dev mode.  The other flags are really handy for development
on systems where you've defeated firmware WP and are installing custom
firmware.

BUG=chromium-os:31844
TEST=make && make runtests

Signed-off-by: Randall Spangler <rspangler@chromium.org>

Change-Id: I9d837fee676cb0186ea98f13005ad60a9ab86393
Reviewed-on: https://gerrit.chromium.org/gerrit/25265
Tested-by: Randall Spangler <rspangler@chromium.org>
Reviewed-by: Bill Richardson <wfrichar@chromium.org>
Reviewed-by: Hung-Te Lin <hungte@chromium.org>
Commit-Ready: Randall Spangler <rspangler@chromium.org>
This commit is contained in:
Randall Spangler
2012-06-13 16:43:59 -07:00
committed by Gerrit
parent 3dae2288bb
commit acd6f4688a
6 changed files with 62 additions and 14 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
firmware/lib/vboot_api_kernel.c
View File

@@ -116,6 +116,7 @@ VbError_t VbBootNormal(VbCommonParams* cparams, LoadKernelParams* p) {
/* Handle a developer-mode boot */
VbError_t VbBootDeveloper(VbCommonParams* cparams, LoadKernelParams* p) {
GoogleBinaryBlockHeader* gbb = (GoogleBinaryBlockHeader*)cparams->gbb_data;
uint32_t allow_usb = 0;
VbAudioContext* audio = 0;
@@ -123,6 +124,9 @@ VbError_t VbBootDeveloper(VbCommonParams* cparams, LoadKernelParams* p) {
/* Check if USB booting is allowed */
VbNvGet(&vnc, VBNV_DEV_BOOT_USB, &allow_usb);
/* Handle GBB flag override */
if (gbb->flags & GBB_FLAG_FORCE_DEV_BOOT_USB)
allow_usb = 1;
/* Show the dev mode warning screen */
VbDisplayScreen(cparams, VB_SCREEN_DEVELOPER_WARNING, 0, &vnc);