diff options
Diffstat (limited to 'firmware/lib/vboot_api_kernel.c')
| -rw-r--r-- | firmware/lib/vboot_api_kernel.c | 19 |
1 files changed, 18 insertions, 1 deletions
diff --git a/firmware/lib/vboot_api_kernel.c b/firmware/lib/vboot_api_kernel.c index 3ce59833..750edb24 100644 --- a/firmware/lib/vboot_api_kernel.c +++ b/firmware/lib/vboot_api_kernel.c @@ -156,16 +156,19 @@ VbError_t VbBootNormal(VbCommonParams* cparams, LoadKernelParams* p) { VbError_t VbBootDeveloper(VbCommonParams* cparams, LoadKernelParams* p) { GoogleBinaryBlockHeader* gbb = (GoogleBinaryBlockHeader*)cparams->gbb_data; VbSharedDataHeader* shared = (VbSharedDataHeader*)cparams->shared_data_blob; - uint32_t allow_usb = 0; + uint32_t allow_usb = 0, allow_legacy = 0; VbAudioContext* audio = 0; VBDEBUG(("Entering %s()\n", __func__)); /* Check if USB booting is allowed */ VbNvGet(&vnc, VBNV_DEV_BOOT_USB, &allow_usb); + VbNvGet(&vnc, VBNV_DEV_BOOT_LEGACY, &allow_legacy); /* Handle GBB flag override */ if (gbb->flags & GBB_FLAG_FORCE_DEV_BOOT_USB) allow_usb = 1; + if (gbb->flags & GBB_FLAG_FORCE_DEV_BOOT_LEGACY) + allow_legacy = 1; /* Show the dev mode warning screen */ VbDisplayScreen(cparams, VB_SCREEN_DEVELOPER_WARNING, 0, &vnc); @@ -227,6 +230,20 @@ VbError_t VbBootDeveloper(VbCommonParams* cparams, LoadKernelParams* p) { VBDEBUG(("VbBootDeveloper() - user pressed Ctrl+D; skip delay\n")); goto fallout; break; + case 0x0c: + VBDEBUG(("VbBootDeveloper() - user pressed Ctrl+L; Try legacy boot\n")); + /* If VbExLegacy() succeeds, it will never return. + * If it returns, beep. + */ + if (allow_legacy) + VbExLegacy(); + else + VBDEBUG(("VbBootDeveloper() - Legacy boot is disabled\n")); + + VbExBeep(120, 400); + VbExSleepMs(120); + VbExBeep(120, 400); + break; /* The Ctrl-Enter is special for Lumpy test purpose. */ case VB_KEY_CTRL_ENTER: case 0x15: |