diff options
Diffstat (limited to 'firmware/2lib/include/2misc.h')
| -rw-r--r-- | firmware/2lib/include/2misc.h | 44 |
1 files changed, 44 insertions, 0 deletions
diff --git a/firmware/2lib/include/2misc.h b/firmware/2lib/include/2misc.h index b80f6906..94a93d40 100644 --- a/firmware/2lib/include/2misc.h +++ b/firmware/2lib/include/2misc.h @@ -210,4 +210,48 @@ int vb2_allow_recovery(struct vb2_context *ctx); */ void vb2_clear_recovery(struct vb2_context *ctx); +/** + * Return the developer mode default boot option; see vb2_dev_default_boot. + * + * @param ctx Vboot context + * @return The developer mode default boot option, or + * VB2_DEV_DEFAULT_BOOT_DISK if not specified. + */ +enum vb2_dev_default_boot vb2_get_dev_boot_target(struct vb2_context *ctx); + +/** + * Determine if developer mode is allowed. + * + * Developer boot is not allowed if and only if FWMP_DEV_DISABLE_BOOT is set and + * GBB_FORCE_DEV_SWITCH_ON is not set. + * + * @param ctx Vboot context + * @return 1 if allowed, or 0 otherwise. + */ +int vb2_dev_boot_allowed(struct vb2_context *ctx); + +/** + * Determine if booting from legacy BIOS is allowed. + * + * Legacy BIOS is allowed if one of the legacy-related flags is set: + * VB2_NV_DEV_BOOT_LEGACY, VB2_GBB_FLAG_FORCE_DEV_BOOT_LEGACY, and + * VB2_SECDATA_FWMP_DEV_ENABLE_LEGACY. + * + * @param ctx Vboot context + * @return 1 if allowed, or 0 otherwise. + */ +int vb2_dev_boot_legacy_allowed(struct vb2_context *ctx); + +/** + * Determine if booting from USB or SD card is allowed. + * + * Booting from USB is allowed if one of the USB-related flags is set: + * VB2_NV_DEV_BOOT_USB, VB2_GBB_FLAG_FORCE_DEV_BOOT_USB, and + * VB2_SECDATA_FWMP_DEV_ENABLE_USB. + * + * @param ctx Vboot context + * @return 1 if allowed, or 0 otherwise. + */ +int vb2_dev_boot_usb_allowed(struct vb2_context *ctx); + #endif /* VBOOT_REFERENCE_2MISC_H_ */ |