diff options
Diffstat (limited to 'src/vboot/Kconfig')
| -rw-r--r-- | src/vboot/Kconfig | 248 |
1 files changed, 209 insertions, 39 deletions
diff --git a/src/vboot/Kconfig b/src/vboot/Kconfig index a92a2fa5e1..c5173239ef 100644 --- a/src/vboot/Kconfig +++ b/src/vboot/Kconfig @@ -12,22 +12,39 @@ ## GNU General Public License for more details. ## -config VBOOT_VBNV_OFFSET - hex - default 0x26 - depends on PC80_SYSTEM +menu "Verified Boot (vboot)" + +config VBOOT + bool "Verify firmware with vboot." + default n + select TPM if !MAINBOARD_HAS_TPM2 + select TPM2 if MAINBOARD_HAS_TPM2 + select TPM_INIT_FAILURE_IS_FATAL if PC80_SYSTEM && LPC_TPM + select SKIP_TPM_STARTUP_ON_NORMAL_BOOT if PC80_SYSTEM && LPC_TPM + depends on HAVE_HARD_RESET help - CMOS offset for VbNv data. This value must match cmos.layout - in the mainboard directory, minus 14 bytes for the RTC. + Enabling VBOOT will use vboot to verify the components of the firmware + (stages, payload, etc). + +if VBOOT config VBOOT_VBNV_CMOS - bool "Vboot non-volatile storage in CMOS." + bool default n + depends on PC80_SYSTEM help VBNV is stored in CMOS +config VBOOT_VBNV_OFFSET + hex + default 0x26 + depends on VBOOT_VBNV_CMOS + help + CMOS offset for VbNv data. This value must match cmos.layout + in the mainboard directory, minus 14 bytes for the RTC. + config VBOOT_VBNV_CMOS_BACKUP_TO_FLASH - bool "Back up Vboot non-volatile storage from CMOS to flash." + bool default n depends on VBOOT_VBNV_CMOS && BOOT_DEVICE_SUPPORTS_WRITES help @@ -35,35 +52,38 @@ config VBOOT_VBNV_CMOS_BACKUP_TO_FLASH and restored from flash if the CMOS is invalid due to power loss. config VBOOT_VBNV_EC - bool "Vboot non-volatile storage in EC." + bool default n help VBNV is stored in EC config VBOOT_VBNV_FLASH - def_bool n + bool + default n depends on BOOT_DEVICE_SUPPORTS_WRITES help VBNV is stored in flash storage config VBOOT_STARTS_IN_BOOTBLOCK - bool "Vboot starts verifying in bootblock" + bool default n - depends on VBOOT help - Firmware verification happens during or at the end of bootblock. + Firmware verification happens during the end of or right after the + bootblock. This implies that a static VBOOT2_WORK() buffer must be + allocated in memlayout. config VBOOT_STARTS_IN_ROMSTAGE - bool "Vboot starts verifying in romstage" + bool default n - depends on VBOOT && !VBOOT_STARTS_IN_BOOTBLOCK + depends on !VBOOT_STARTS_IN_BOOTBLOCK help - Firmware verification happens during or at the end of romstage. + Firmware verification happens during the end of romstage (after + memory initialization). This implies that vboot working data is + allocated in CBMEM. config VBOOT_MOCK_SECDATA bool "Mock secdata for firmware verification" default n - depends on VBOOT help Enabling VBOOT_MOCK_SECDATA will mock secdata for the firmware verification to avoid access to a secdata storage (typically TPM). @@ -72,29 +92,28 @@ config VBOOT_MOCK_SECDATA THIS SHOULD NOT BE LEFT ON FOR PRODUCTION DEVICES. config VBOOT_DISABLE_DEV_ON_RECOVERY - bool "Disable dev mode on recovery requests" + bool default n - depends on VBOOT help When this option is enabled, the Chrome OS device leaves the developer mode as soon as recovery request is detected. This is handy on embedded devices with limited input capabilities. -config SEPARATE_VERSTAGE - bool "Vboot verification is built into a separate stage" +config VBOOT_SEPARATE_VERSTAGE + bool default n - depends on VBOOT && VBOOT_STARTS_IN_BOOTBLOCK + depends on VBOOT_STARTS_IN_BOOTBLOCK help If this option is set, vboot verification runs in a standalone stage that is loaded from the bootblock and exits into romstage. If it is not set, the verification code is linked directly into the bootblock or the romstage and runs as part of that stage (cf. related options - VBOOT_STARTS_IN_BOOTBLOCK/_ROMSTAGE and RETURN_FROM_VERSTAGE). + VBOOT_STARTS_IN_BOOTBLOCK/_ROMSTAGE and VBOOT_RETURN_FROM_VERSTAGE). -config RETURN_FROM_VERSTAGE - bool "The separate verification stage returns to its caller" +config VBOOT_RETURN_FROM_VERSTAGE + bool default n - depends on SEPARATE_VERSTAGE + depends on VBOOT_SEPARATE_VERSTAGE help If this is set, the verstage returns back to the calling stage instead of exiting to the succeeding stage so that the verstage space can be @@ -104,16 +123,14 @@ config RETURN_FROM_VERSTAGE config VBOOT_SAVE_RECOVERY_REASON_ON_REBOOT bool default n - depends on VBOOT help This option ensures that the recovery request is not lost because of reboots caused after vboot verification is run. e.g. reboots caused by FSP components on Intel platforms. config VBOOT_OPROM_MATTERS - bool "Video option ROM matters (= can skip display init)" + bool default n - depends on VBOOT help Set this option to indicate to vboot that this platform will skip its display initialization on a normal (non-recovery, non-developer) boot. @@ -125,7 +142,6 @@ config VBOOT_OPROM_MATTERS config VBOOT_HAS_REC_HASH_SPACE bool default n - depends on VBOOT help Set this option to indicate to vboot that recovery data hash space is present in TPM. @@ -134,14 +150,168 @@ config VBOOT_SOFT_REBOOT_WORKAROUND bool default n -config VBOOT - bool "Verify firmware with vboot." +config VBOOT_EC_SOFTWARE_SYNC + bool "Enable EC software sync" + default y if EC_GOOGLE_CHROMEEC default n - select TPM if !MAINBOARD_HAS_TPM2 - select TPM2 if MAINBOARD_HAS_TPM2 - select TPM_INIT_FAILURE_IS_FATAL if PC80_SYSTEM && LPC_TPM - select SKIP_TPM_STARTUP_ON_NORMAL_BOOT if PC80_SYSTEM && LPC_TPM - depends on HAVE_HARD_RESET help - Enabling VBOOT will use vboot to verify the components of the firmware - (stages, payload, etc). + EC software sync is a mechanism where the AP helps the EC verify its + firmware similar to how vboot verifies the main system firmware. This + option selects whether vboot should support EC software sync. + +config VBOOT_EC_SLOW_UPDATE + bool + default n + depends on VBOOT_EC_SOFTWARE_SYNC + help + Whether the EC (or PD) is slow to update and needs to display a + screen that informs the user the update is happening. + +config VBOOT_PHYSICAL_DEV_SWITCH + bool + default n + help + Whether this platform has a physical developer switch. Note that this + disables virtual dev switch functionality (through secdata). Operation + where both a physical pin and the virtual switch get sampled is not + supported by coreboot. + +config VBOOT_PHYSICAL_REC_SWITCH + bool + default n + help + Whether this platform has a physical recovery switch. + +config VBOOT_LID_SWITCH + bool + default n + help + Whether this platform has a lid switch. If it does, vboot will not + decrement try counters for boot failures if the lid is closed. + +config VBOOT_WIPEOUT_SUPPORTED + bool + default n + help + When this option is enabled, the firmware provides the ability to + signal the application the need for factory reset (a.k.a. wipe + out) of the device + +config VBOOT_FWID_MODEL + string "Firmware ID model" + default "$(CONFIG_MAINBOARD_VENDOR)_$(CONFIG_MAINBOARD_PART_NUMBER)" + help + This is the first part of the FWID written to various regions of a + vboot firmware image to identify its version. + +config VBOOT_FWID_VERSION + string "Firmware ID version" + default "$(KERNELVERSION)" + help + This is the second part of the FWID written to various regions of a + vboot firmware image to identify its version. + +menu "GBB configuration" + +config GBB_HWID + string "Hardware ID" + default "NOCONF HWID" + +config GBB_BMPFV_FILE + string "Path to bmpfv image" + default "" + +config GBB_FLAG_DEV_SCREEN_SHORT_DELAY + bool "Reduce dev screen delay" + default n + +config GBB_FLAG_LOAD_OPTION_ROMS + bool "Load option ROMs" + default n + +config GBB_FLAG_ENABLE_ALTERNATE_OS + bool "Allow booting a non-Chrome OS kernel if dev switch is on" + default n + +config GBB_FLAG_FORCE_DEV_SWITCH_ON + bool "Force dev switch on" + default n + +config GBB_FLAG_FORCE_DEV_BOOT_USB + bool "Allow booting from USB in dev mode even if dev_boot_usb=0" + default y + +config GBB_FLAG_DISABLE_FW_ROLLBACK_CHECK + bool "Disable firmware rollback protection" + default y + +config GBB_FLAG_ENTER_TRIGGERS_TONORM + bool "Return to normal boot with Enter" + default n + +config GBB_FLAG_FORCE_DEV_BOOT_LEGACY + bool "Allow booting to legacy in dev mode even if dev_boot_legacy=0" + default n + +config GBB_FLAG_FAFT_KEY_OVERIDE + bool "Allow booting using alternative keys for FAFT servo testing" + default n + +config GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC + bool "Disable EC software sync" + default n + +config GBB_FLAG_DEFAULT_DEV_BOOT_LEGACY + bool "Default to booting to legacy in dev mode" + default n + +config GBB_FLAG_DISABLE_PD_SOFTWARE_SYNC + bool "Disable PD software sync" + default n + +config GBB_FLAG_DISABLE_LID_SHUTDOWN + bool "Disable shutdown on closed lid" + default n + +config GBB_FLAG_FORCE_DEV_BOOT_FASTBOOT_FULL_CAP + bool "Allow fastboot even if dev_boot_fastboot_full_cap=0" + default n + +config GBB_FLAG_ENABLE_SERIAL + bool "Tell vboot to enable serial console" + default n + +endmenu # GBB + +menu "Vboot Keys" +config VBOOT_ROOT_KEY + string "Root key (public)" + default "$(VBOOT_SOURCE)/tests/devkeys/root_key.vbpubk" + +config VBOOT_RECOVERY_KEY + string "Recovery key (public)" + default "$(VBOOT_SOURCE)/tests/devkeys/recovery_key.vbpubk" + +config VBOOT_FIRMWARE_PRIVKEY + string "Firmware key (private)" + default "$(VBOOT_SOURCE)/tests/devkeys/firmware_data_key.vbprivk" + +config VBOOT_KERNEL_KEY + string "Kernel subkey (public)" + default "$(VBOOT_SOURCE)/tests/devkeys/kernel_subkey.vbpubk" + +config VBOOT_KEYBLOCK + string "Keyblock to use for the RW regions" + default "$(VBOOT_SOURCE)/tests/devkeys/firmware.keyblock" + +config VBOOT_KEYBLOCK_VERSION + int "Keyblock version number" + default 1 + +config VBOOT_KEYBLOCK_PREAMBLE_FLAGS + hex "Keyblock preamble flags" + default 0x0 + +endmenu # Keys +endif # VBOOT +endmenu # Verified Boot (vboot) |