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nvstorage: Add new flag VBNV_DEV_BOOT_FASTBOOT_FULL_CAP

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Add a new flag to nvstorage for controlling fastboot capabilities
offered in firmware in dev-mode. By default, value of this flag would
be ignored in normal mode. Thus, when fastboot-based recovery is
entered from normal mode, only limited capability would be available
in firmware.

After switching to dev-mode, this flag can be set automatically by
user script after performing the wipe or it can be set manually using
crossystem. When fastboot-based recovery is entered from dev mode and
this flag is set, it will provide full fastboot capability in the
firmware.

BUG=chrome-os-partner:40196
BRANCH=None
TEST=Compiles successfully for smaug. make runalltests successful.

Change-Id: I761a9ab304dd90f0b73081acc9ce1f8d9052325f
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://chromium-review.googlesource.com/271369
Reviewed-by: Aaron Durbin <adurbin@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Queue: Furquan Shaikh <furquan@chromium.org>
Trybot-Ready: Furquan Shaikh <furquan@chromium.org>
Tested-by: Furquan Shaikh <furquan@chromium.org>
This commit is contained in:
Furquan Shaikh
2015-05-14 12:53:19 -07:00
committed by ChromeOS Commit Bot
parent 07e56f22b8
commit 9101df2fe3
8 changed files with 45 additions and 0 deletions
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1
firmware/lib/vboot_api_init.c
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@@ -320,6 +320,7 @@ VbError_t VbInit(VbCommonParams *cparams, VbInitParams *iparams)
VbNvSet(&vnc, VBNV_DEV_BOOT_USB, 0);
VbNvSet(&vnc, VBNV_DEV_BOOT_LEGACY, 0);
VbNvSet(&vnc, VBNV_DEV_BOOT_SIGNED_ONLY, 0);
VbNvSet(&vnc, VBNV_DEV_BOOT_FASTBOOT_FULL_CAP, 0);
/*
* Back up any changes now, so these values can't be forgotten
* by draining the battery. We really only care about these