commit a2326ee152ab5b8aee924ccf794cee38d54909bd
author Stefan Reinauer <reinauer@chromium.org> Thu Aug 23 15:06:45 2012 -0700
committer Gerrit <chrome-bot@google.com> Thu Sep 20 17:32:22 2012 -0700
tree e39ef194d12e95624e893f6963b0b116e377eb91
parent 40bc7b7802e89b009c3dbcd0a63cbd44d411659c

Add CTRL-L in dev screen to support a "legacy boot option"

This option is disabled per default and can be enabled with
crossystem dev_boot_legacy=1
or by setting the GBB flag
GBB_FLAG_FORCE_DEV_BOOT_LEGACY      0x00000080

BUG=chrome-os-partner:6108
TEST=crossystem dev_boot_legacy=1
     boot to dev mode screen, press CTRL-L, see SeaBIOS start
     (other CLs needed)
BRANCH=link
Signed-off-by: Stefan Reinauer <reinauer@chromium.org>

Change-Id: I593d2be7cff5ca07b8d08012c4514a172bd75a38
Reviewed-on: https://gerrit.chromium.org/gerrit/31265
Reviewed-by: Stefan Reinauer <reinauer@chromium.org>
Tested-by: Stefan Reinauer <reinauer@chromium.org>
Reviewed-by: Randall Spangler <rspangler@chromium.org>
Commit-Ready: Stefan Reinauer <reinauer@chromium.org>

host/lib/crossystem.c

diff --git a/host/lib/crossystem.c b/host/lib/crossystem.c
index a19384d..e1ee4fc 100644
--- a/host/lib/crossystem.c
+++ b/host/lib/crossystem.c
@@ -421,6 +421,8 @@
     value = VbGetNvStorage(VBNV_LOCALIZATION_INDEX);
   } else if (!strcasecmp(name,"dev_boot_usb")) {
     value = VbGetNvStorage(VBNV_DEV_BOOT_USB);
+  } else if (!strcasecmp(name,"dev_boot_legacy")) {
+    value = VbGetNvStorage(VBNV_DEV_BOOT_LEGACY);
   } else if (!strcasecmp(name,"dev_boot_signed_only")) {
     value = VbGetNvStorage(VBNV_DEV_BOOT_SIGNED_ONLY);
   } else if (!strcasecmp(name,"oprom_needed")) {
@@ -521,6 +523,8 @@
     return VbSetNvStorage(VBNV_LOCALIZATION_INDEX, value);
   } else if (!strcasecmp(name,"dev_boot_usb")) {
     return VbSetNvStorage(VBNV_DEV_BOOT_USB, value);
+  } else if (!strcasecmp(name,"dev_boot_legacy")) {
+    return VbSetNvStorage(VBNV_DEV_BOOT_LEGACY, value);
   } else if (!strcasecmp(name,"dev_boot_signed_only")) {
     return VbSetNvStorage(VBNV_DEV_BOOT_SIGNED_ONLY, value);
   } else if (!strcasecmp(name,"oprom_needed")) {