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authorPhilipp Deppenwiese <zaolin@das-labor.org>2017-10-17 17:02:29 +0200
committerMartin Roth <martinroth@google.com>2017-10-22 02:14:46 +0000
commitfea2429e254c41b192dd0856966d5f80eb15a07a (patch)
tree40e81b3ca7ee3c1f9985af9a8a24a3a9b21e8700 /src/vboot
parent9e0d69bf1e0194509108eba23511a12d597ae49e (diff)
security/vboot: Move vboot2 to security kconfig section
This commit just moves the vboot sources into the security directory and fixes kconfig/makefile paths. Fix vboot2 headers Change-Id: Icd87f95640186f7a625242a3937e1dd13347eb60 Signed-off-by: Philipp Deppenwiese <zaolin@das-labor.org> Reviewed-on: https://review.coreboot.org/22074 Tested-by: build bot (Jenkins) <no-reply@coreboot.org> Reviewed-by: Martin Roth <martinroth@google.com>
Diffstat (limited to 'src/vboot')
-rw-r--r--src/vboot/Kconfig334
-rw-r--r--src/vboot/Makefile.inc263
-rw-r--r--src/vboot/bootmode.c171
-rw-r--r--src/vboot/common.c182
-rw-r--r--src/vboot/misc.h40
-rw-r--r--src/vboot/secdata_mock.c85
-rw-r--r--src/vboot/secdata_tpm.c585
-rw-r--r--src/vboot/symbols.h28
-rw-r--r--src/vboot/vbnv.c155
-rw-r--r--src/vboot/vbnv.h51
-rw-r--r--src/vboot/vbnv_cmos.c114
-rw-r--r--src/vboot/vbnv_ec.c30
-rw-r--r--src/vboot/vbnv_flash.c181
-rw-r--r--src/vboot/vbnv_layout.h50
-rw-r--r--src/vboot/vboot_common.c115
-rw-r--r--src/vboot/vboot_common.h118
-rw-r--r--src/vboot/vboot_handoff.c190
-rw-r--r--src/vboot/vboot_loader.c158
-rw-r--r--src/vboot/vboot_logic.c438
-rw-r--r--src/vboot/verstage.c39
20 files changed, 0 insertions, 3327 deletions
diff --git a/src/vboot/Kconfig b/src/vboot/Kconfig
deleted file mode 100644
index d5b5de291e..0000000000
--- a/src/vboot/Kconfig
+++ /dev/null
@@ -1,334 +0,0 @@
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2014 The ChromiumOS Authors. All rights reserved.
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-## GNU General Public License for more details.
-##
-
-menu "Verified Boot (vboot)"
-
-config VBOOT
- bool "Verify firmware with vboot."
- default n
- select TPM if !MAINBOARD_HAS_TPM2 && !VBOOT_MOCK_SECDATA
- select TPM2 if MAINBOARD_HAS_TPM2 && !VBOOT_MOCK_SECDATA
- 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).
-
-if VBOOT
-
-config VBOOT_VBNV_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
- default n
- depends on VBOOT_VBNV_CMOS && BOOT_DEVICE_SUPPORTS_WRITES
- help
- Vboot non-volatile storage data will be backed up from CMOS to flash
- and restored from flash if the CMOS is invalid due to power loss.
-
-config VBOOT_VBNV_EC
- bool
- default n
- help
- VBNV is stored in EC
-
-config VBOOT_VBNV_FLASH
- bool
- default n
- depends on BOOT_DEVICE_SUPPORTS_WRITES
- help
- VBNV is stored in flash storage
-
-config VBOOT_STARTS_IN_BOOTBLOCK
- bool
- default n
- help
- 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
- default n
- depends on !VBOOT_STARTS_IN_BOOTBLOCK
- help
- 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
- help
- Enabling VBOOT_MOCK_SECDATA will mock secdata for the firmware
- verification to avoid access to a secdata storage (typically TPM).
- All operations for a secdata storage will be successful. This option
- can be used during development when a TPM is not present or broken.
- THIS SHOULD NOT BE LEFT ON FOR PRODUCTION DEVICES.
-
-config VBOOT_DISABLE_DEV_ON_RECOVERY
- bool
- default n
- 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 VBOOT_SEPARATE_VERSTAGE
- bool
- default n
- 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 VBOOT_RETURN_FROM_VERSTAGE).
-
-config VBOOT_RETURN_FROM_VERSTAGE
- bool
- default n
- 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
- reused by the succeeding stage. This is useful if a RAM space is too
- small to fit both the verstage and the succeeding stage.
-
-config VBOOT_SAVE_RECOVERY_REASON_ON_REBOOT
- bool
- default n
- 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
- default n
- help
- Set this option to indicate to vboot that this platform will skip its
- display initialization on a normal (non-recovery, non-developer) boot.
- Vboot calls this "oprom matters" because on x86 devices this
- traditionally meant that the video option ROM will not be loaded, but
- it works functionally the same for other platforms that can skip their
- native display initialization code instead.
-
-config VBOOT_HAS_REC_HASH_SPACE
- bool
- default n
- help
- Set this option to indicate to vboot that recovery data hash space
- is present in TPM.
-
-config VBOOT_SOFT_REBOOT_WORKAROUND
- bool
- default n
-
-config VBOOT_EC_SOFTWARE_SYNC
- bool "Enable EC software sync"
- default y if EC_GOOGLE_CHROMEEC
- default n
- help
- 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_EC_EFS
- bool
- default n
- depends on VBOOT_EC_SOFTWARE_SYNC
- help
- CrosEC can support EFS: Early Firmware Selection. If it's enabled,
- software sync need to also support it. This setting tells vboot to
- perform EFS software sync.
-
-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 "Google_$(CONFIG_MAINBOARD_PART_NUMBER)" if CHROMEOS
- default "$(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.
-
-config RO_REGION_ONLY
- string "Additional files that should not be copied to RW"
- default ""
- help
- Add a space delimited list of filenames that should only be in the
- RO section.
-
-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 "$(VBOOT_SOURCE)/tests/devkeys/firmware.keyblock"
-
-config VBOOT_KEYBLOCK_VERSION
- int "Keyblock version number"
- default 1
-
-config VBOOT_KEYBLOCK_PREAMBLE_FLAGS
- hex "Keyblock preamble flags"
- default 0x0
-
-endmenu # Keys
-endif # VBOOT
-endmenu # Verified Boot (vboot)
diff --git a/src/vboot/Makefile.inc b/src/vboot/Makefile.inc
deleted file mode 100644
index 75ecff3b21..0000000000
--- a/src/vboot/Makefile.inc
+++ /dev/null
@@ -1,263 +0,0 @@
-##
-## This file is part of the coreboot project.
-##
-## Copyright (C) 2014 The ChromiumOS Authors. All rights reserved.
-##
-## This program is free software; you can redistribute it and/or modify
-## it under the terms of the GNU General Public License as published by
-## the Free Software Foundation; version 2 of the License.
-##
-## This program is distributed in the hope that it will be useful,
-## but WITHOUT ANY WARRANTY; without even the implied warranty of
-## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
-## GNU General Public License for more details.
-##
-
-ifeq ($(CONFIG_VBOOT),y)
-
-bootblock-y += bootmode.c
-romstage-y += bootmode.c
-ramstage-y += bootmode.c
-verstage-y += bootmode.c
-postcar-y += bootmode.c
-
-verstage-generic-ccopts += -D__PRE_RAM__ -D__VERSTAGE__
-
-bootblock-y += vbnv.c
-verstage-y += vbnv.c
-romstage-y += vbnv.c
-ramstage-y += vbnv.c
-
-bootblock-$(CONFIG_VBOOT_VBNV_CMOS) += vbnv_cmos.c
-verstage-$(CONFIG_VBOOT_VBNV_CMOS) += vbnv_cmos.c
-romstage-$(CONFIG_VBOOT_VBNV_CMOS) += vbnv_cmos.c
-ramstage-$(CONFIG_VBOOT_VBNV_CMOS) += vbnv_cmos.c
-
-bootblock-$(CONFIG_VBOOT_VBNV_CMOS_BACKUP_TO_FLASH) += vbnv_flash.c
-verstage-$(CONFIG_VBOOT_VBNV_CMOS_BACKUP_TO_FLASH) += vbnv_flash.c
-romstage-$(CONFIG_VBOOT_VBNV_CMOS_BACKUP_TO_FLASH) += vbnv_flash.c
-ramstage-$(CONFIG_VBOOT_VBNV_CMOS_BACKUP_TO_FLASH) += vbnv_flash.c
-
-bootblock-$(CONFIG_VBOOT_VBNV_EC) += vbnv_ec.c
-verstage-$(CONFIG_VBOOT_VBNV_EC) += vbnv_ec.c
-romstage-$(CONFIG_VBOOT_VBNV_EC) += vbnv_ec.c
-ramstage-$(CONFIG_VBOOT_VBNV_EC) += vbnv_ec.c
-
-bootblock-$(CONFIG_VBOOT_VBNV_FLASH) += vbnv_flash.c
-verstage-$(CONFIG_VBOOT_VBNV_FLASH) += vbnv_flash.c
-romstage-$(CONFIG_VBOOT_VBNV_FLASH) += vbnv_flash.c
-ramstage-$(CONFIG_VBOOT_VBNV_FLASH) += vbnv_flash.c
-
-bootblock-y += vboot_loader.c
-romstage-y += vboot_loader.c
-ramstage-y += vboot_loader.c
-verstage-y += vboot_loader.c
-postcar-y += vboot_loader.c
-
-bootblock-y += vboot_common.c
-verstage-y += vboot_common.c
-romstage-y += vboot_common.c
-ramstage-y += vboot_common.c
-postcar-y += vboot_common.c
-
-bootblock-y += common.c
-verstage-y += vboot_logic.c
-verstage-y += common.c
-verstage-$(CONFIG_VBOOT_SEPARATE_VERSTAGE) += verstage.c
-ifeq (${CONFIG_VBOOT_MOCK_SECDATA},y)
-verstage-y += secdata_mock.c
-romstage-$(CONFIG_VBOOT_SEPARATE_VERSTAGE) += secdata_mock.c
-else
-verstage-y += secdata_tpm.c
-romstage-$(CONFIG_VBOOT_SEPARATE_VERSTAGE) += secdata_tpm.c
-endif
-romstage-y += vboot_handoff.c common.c
-
-ramstage-y += common.c
-postcar-y += common.c
-
-ifeq ($(CONFIG_VBOOT_SEPARATE_VERSTAGE),y)
-VB_FIRMWARE_ARCH := $(ARCHDIR-$(ARCH-verstage-y))
-else
-ifeq ($(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK),y)
-VB_FIRMWARE_ARCH := $(ARCHDIR-$(ARCH-bootblock-y))
-else
-VB_FIRMWARE_ARCH := $(ARCHDIR-$(ARCH-romstage-y))
-endif
-endif # CONFIG_VBOOT_SEPARATE_VERSTAGE
-
-VB2_LIB = $(obj)/external/vboot_reference/vboot_fw20.a
-VBOOT_CFLAGS += $(patsubst -I%,-I$(top)/%, $(filter-out -I$(obj), $(filter-out -include $(src)/include/kconfig.h, $(CPPFLAGS_verstage))))
-VBOOT_CFLAGS += $(CFLAGS_verstage)
-VBOOT_CFLAGS += $(verstage-c-ccopts)
-VBOOT_CFLAGS += -I$(abspath $(obj)) -include $(top)/src/include/kconfig.h -Wno-missing-prototypes
-VBOOT_CFLAGS += -DVBOOT_DEBUG
-
-$(VB2_LIB): $(obj)/config.h
- printf " MAKE $(subst $(obj)/,,$(@))\n"
- +FIRMWARE_ARCH=$(VB_FIRMWARE_ARCH) \
- CC="$(CC_verstage)" \
- CFLAGS="$(VBOOT_CFLAGS)" VBOOT2="y" \
- $(MAKE) -C $(VBOOT_SOURCE) \
- BUILD=$(abspath $(dir $(VB2_LIB))) \
- V=$(V) \
- fwlib20
-
-verstage-srcs += $(VB2_LIB)
-
-ifeq ($(CONFIG_VBOOT_SEPARATE_VERSTAGE),y)
-
-# This works under the assumption that romstage and verstage use the same
-# architecture and thus CC_verstage is the same as CC_romstage. If this is not
-# true, VB2_LIB needs to ensure that correct CC is being used.
-ifeq ($(CONFIG_VBOOT_HAS_REC_HASH_SPACE),y)
-romstage-srcs += $(VB2_LIB)
-endif
-
-cbfs-files-$(CONFIG_VBOOT_SEPARATE_VERSTAGE) += $(CONFIG_CBFS_PREFIX)/verstage
-$(CONFIG_CBFS_PREFIX)/verstage-file := $(objcbfs)/verstage.elf
-$(CONFIG_CBFS_PREFIX)/verstage-type := stage
-$(CONFIG_CBFS_PREFIX)/verstage-compression := $(CBFS_PRERAM_COMPRESS_FLAG)
-
-ifeq ($(CONFIG_ARCH_VERSTAGE_X86_32)$(CONFIG_ARCH_VERSTAGE_X86_64),y)
-$(CONFIG_CBFS_PREFIX)/verstage-options := -a 64 -S ".car.data"
-
-# If CAR does not support execution of code, verstage on x86 is expected to be
-# xip.
-ifneq ($(CONFIG_NO_XIP_EARLY_STAGES),y)
-$(CONFIG_CBFS_PREFIX)/verstage-options += --xip
-endif
-
-endif
-
-else # CONFIG_VBOOT_SEPARATE_VERSTAGE
-ifeq ($(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK),y)
-postinclude-hooks += $$(eval bootblock-srcs += $$(verstage-srcs))
-else
-postinclude-hooks += $$(eval romstage-srcs += $$(verstage-srcs))
-endif
-endif # CONFIG_VBOOT_SEPARATE_VERSTAGE
-
-# Define a list of files that need to be in RO only.
-# All other files will be installed into RO and RW regions
-# Use $(sort) to cut down on extra spaces that would be translated to commas
-regions-for-file = $(subst $(spc),$(comma),$(sort \
- $(if $(filter \
- $(if $(filter y,$(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK)),, \
- %/romstage) \
- mts \
- %/verstage \
- locales \
- locale_%.bin \
- font.bin \
- vbgfx.bin \
- rmu.bin \
- $(call strip_quotes,$(CONFIG_RO_REGION_ONLY)) \
- ,$(1)),COREBOOT,COREBOOT FW_MAIN_A FW_MAIN_B)))
-
-CONFIG_GBB_HWID := $(call strip_quotes,$(CONFIG_GBB_HWID))
-CONFIG_GBB_BMPFV_FILE := $(call strip_quotes,$(CONFIG_GBB_BMPFV_FILE))
-CONFIG_VBOOT_KEYBLOCK := $(call strip_quotes,$(CONFIG_VBOOT_KEYBLOCK))
-CONFIG_VBOOT_FIRMWARE_PRIVKEY := $(call strip_quotes,$(CONFIG_VBOOT_FIRMWARE_PRIVKEY))
-CONFIG_VBOOT_KERNEL_KEY := $(call strip_quotes,$(CONFIG_VBOOT_KERNEL_KEY))
-CONFIG_VBOOT_FWID_MODEL := $(call strip_quotes,$(CONFIG_VBOOT_FWID_MODEL))
-CONFIG_VBOOT_FWID_VERSION := $(call strip_quotes,$(CONFIG_VBOOT_FWID_VERSION))
-
-# bool-to-mask(var, value)
-# return "value" if var is "y", 0 otherwise
-bool-to-mask = $(if $(filter y,$(1)),$(2),0)
-
-GBB_FLAGS := $(call int-add, \
- $(call bool-to-mask,$(CONFIG_GBB_FLAG_DEV_SCREEN_SHORT_DELAY),0x1) \
- $(call bool-to-mask,$(CONFIG_GBB_FLAG_LOAD_OPTION_ROMS),0x2) \
- $(call bool-to-mask,$(CONFIG_GBB_FLAG_ENABLE_ALTERNATE_OS),0x4) \
- $(call bool-to-mask,$(CONFIG_GBB_FLAG_FORCE_DEV_SWITCH_ON),0x8) \
- $(call bool-to-mask,$(CONFIG_GBB_FLAG_FORCE_DEV_BOOT_USB),0x10) \
- $(call bool-to-mask,$(CONFIG_GBB_FLAG_DISABLE_FW_ROLLBACK_CHECK),0x20) \
- $(call bool-to-mask,$(CONFIG_GBB_FLAG_ENTER_TRIGGERS_TONORM),0x40) \
- $(call bool-to-mask,$(CONFIG_GBB_FLAG_FORCE_DEV_BOOT_LEGACY),0x80) \
- $(call bool-to-mask,$(CONFIG_GBB_FLAG_FAFT_KEY_OVERIDE),0x100) \
- $(call bool-to-mask,$(CONFIG_GBB_FLAG_DISABLE_EC_SOFTWARE_SYNC),0x200) \
- $(call bool-to-mask,$(CONFIG_GBB_FLAG_DEFAULT_DEV_BOOT_LEGACY),0x400) \
- $(call bool-to-mask,$(CONFIG_GBB_FLAG_DISABLE_PD_SOFTWARE_SYNC),0x800) \
- $(call bool-to-mask,$(CONFIG_GBB_FLAG_DISABLE_LID_SHUTDOWN),0x1000) \
- $(call bool-to-mask,$(CONFIG_GBB_FLAG_FORCE_DEV_BOOT_FASTBOOT_FULL_CAP),0x2000) \
- $(call bool-to-mask,$(CONFIG_GBB_FLAG_ENABLE_SERIAL),0x4000) \
- )
-
-ifneq ($(CONFIG_GBB_BMPFV_FILE),)
-$(obj)/gbb.sizetmp: $(obj)/coreboot.rom
- $(CBFSTOOL) $< read -r GBB -f $@
-
-$(obj)/gbb.stub: $(obj)/coreboot.rom $(FUTILITY) $(obj)/gbb.sizetmp
- @printf " CREATE GBB (with BMPFV)\n"
- $(FUTILITY) gbb_utility -c 0x100,0x1000,$(call int-subtract,$(call file-size,$(obj)/gbb.sizetmp) 0x2180),0x1000 $@.tmp
- mv $@.tmp $@
-else
-$(obj)/gbb.stub: $(obj)/coreboot.rom $(FUTILITY)
- @printf " CREATE GBB (without BMPFV)\n"
- $(FUTILITY) gbb_utility -c 0x100,0x1000,0,0x1000 $@.tmp
- mv $@.tmp $@
-endif
-
-$(obj)/gbb.region: $(obj)/gbb.stub
- @printf " SETUP GBB\n"
- cp $< $@.tmp
- $(FUTILITY) gbb_utility -s \
- --hwid="$(CONFIG_GBB_HWID)" \
- --rootkey="$(CONFIG_VBOOT_ROOT_KEY)" \
- --recoverykey="$(CONFIG_VBOOT_RECOVERY_KEY)" \
- --flags=$(GBB_FLAGS) \
- $@.tmp
-ifneq ($(CONFIG_GBB_BMPFV_FILE),)
- $(FUTILITY) gbb_utility -s \
- --bmpfv="$(CONFIG_GBB_BMPFV_FILE)" \
- $@.tmp
-endif
- mv $@.tmp $@
-
-$(obj)/fwid.region:
- printf "$(CONFIG_VBOOT_FWID_MODEL)$(CONFIG_VBOOT_FWID_VERSION)\0" > $@
-
-build_complete:: $(obj)/gbb.region $(obj)/fwid.region
- @printf " WRITE GBB\n"
- $(CBFSTOOL) $(obj)/coreboot.rom write -u -r GBB -i 0 -f $(obj)/gbb.region
- $(CBFSTOOL) $(obj)/coreboot.rom write -u -r RO_FRID -i 0 -f $(obj)/fwid.region
- $(CBFSTOOL) $(obj)/coreboot.rom write -u -r RW_FWID_A -i 0 -f $(obj)/fwid.region
- $(CBFSTOOL) $(obj)/coreboot.rom write -u -r RW_FWID_B -i 0 -f $(obj)/fwid.region
-
-ifneq ($(shell grep "SHARED_DATA" "$(CONFIG_FMDFILE)"),)
-build_complete::
- printf "\0" > $(obj)/shared_data.region
- $(CBFSTOOL) $(obj)/coreboot.rom write -u -r SHARED_DATA -i 0 -f $(obj)/shared_data.region
-endif
-
-# Extract FW_MAIN_? region and minimize it if the last file is empty, so it
-# doesn't contain this empty file (that can have a significant size),
-# improving a lot on hash times due to a smaller amount of data loaded from
-# firmware storage.
-# When passing the minimized image to vbutil_firmware, its length is recorded
-# in the keyblock, and coreboot's vboot code clips the region_device to match,
-# which prevents any potential extension attacks.
-$(obj)/FW_MAIN_%.bin: $(obj)/coreboot.rom
- $(CBFSTOOL) $< truncate -r $(basename $(notdir $@)) > $@.tmp.size
- $(CBFSTOOL) $< read -r $(basename $(notdir $@)) -f $@.tmp
- head -c $$( printf "%d" $$(cat $@.tmp.size)) $@.tmp > $@.tmp2
- mv $@.tmp2 $@
- rm -f $@.tmp $@.tmp.size
-
-$(obj)/VBLOCK_%.bin: $(obj)/FW_MAIN_%.bin $(FUTILITY)
- $(FUTILITY) vbutil_firmware \
- --vblock $@ \
- --keyblock "$(CONFIG_VBOOT_KEYBLOCK)" \
- --signprivate "$(CONFIG_VBOOT_FIRMWARE_PRIVKEY)" \
- --version $(CONFIG_VBOOT_KEYBLOCK_VERSION) \
- --fv $< \
- --kernelkey "$(CONFIG_VBOOT_KERNEL_KEY)" \
- --flags $(CONFIG_VBOOT_KEYBLOCK_PREAMBLE_FLAGS)
-
-files_added:: $(obj)/VBLOCK_A.bin $(obj)/VBLOCK_B.bin
- $(CBFSTOOL) $(obj)/coreboot.rom write -u -r VBLOCK_A -f $(obj)/VBLOCK_A.bin
- $(CBFSTOOL) $(obj)/coreboot.rom write -u -r VBLOCK_B -f $(obj)/VBLOCK_B.bin
-
-endif # CONFIG_VBOOT
diff --git a/src/vboot/bootmode.c b/src/vboot/bootmode.c
deleted file mode 100644
index 120744837b..0000000000
--- a/src/vboot/bootmode.c
+++ /dev/null
@@ -1,171 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2016 Google Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <assert.h>
-#include <bootmode.h>
-#include <bootstate.h>
-#include <cbmem.h>
-#include <rules.h>
-#include <string.h>
-#include <vb2_api.h>
-#include <vboot/misc.h>
-#include <vboot/vbnv.h>
-#include <vboot/vboot_common.h>
-
-static int vb2_get_recovery_reason_shared_data(void)
-{
- /* Shared data does not exist for Ramstage and Post-CAR stage. */
- if (ENV_RAMSTAGE || ENV_POSTCAR)
- return 0;
-
- struct vb2_shared_data *sd = vb2_get_shared_data();
- assert(sd);
- return sd->recovery_reason;
-}
-
-void vb2_save_recovery_reason_vbnv(void)
-{
- if (!IS_ENABLED(CONFIG_VBOOT_SAVE_RECOVERY_REASON_ON_REBOOT))
- return;
-
- int reason = vb2_get_recovery_reason_shared_data();
- if (!reason)
- return;
-
- set_recovery_mode_into_vbnv(reason);
-}
-
-static void vb2_clear_recovery_reason_vbnv(void *unused)
-{
- if (!IS_ENABLED(CONFIG_VBOOT_SAVE_RECOVERY_REASON_ON_REBOOT))
- return;
-
- set_recovery_mode_into_vbnv(0);
-}
-
-/*
- * Recovery reason stored in VBNV needs to be cleared before the state of VBNV
- * is backed-up anywhere or jumping to the payload (whichever occurs
- * first). Currently, vbnv_cmos.c backs up VBNV on POST_DEVICE. Thus, we need to
- * make sure that the stored recovery reason is cleared off before that
- * happens.
- * IMPORTANT: Any reboot occurring after BS_DEV_INIT state will cause loss of
- * recovery reason on reboot. Until now, we have seen reboots occuring on x86
- * only in FSP stages which run before BS_DEV_INIT.
- */
-BOOT_STATE_INIT_ENTRY(BS_DEV_INIT, BS_ON_EXIT,
- vb2_clear_recovery_reason_vbnv, NULL);
-
-/*
- * Returns 1 if vboot is being used and currently in a stage which might have
- * already executed vboot verification.
- */
-static int vboot_possibly_executed(void)
-{
- if (IS_ENABLED(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK)) {
- if (ENV_BOOTBLOCK && IS_ENABLED(CONFIG_VBOOT_SEPARATE_VERSTAGE))
- return 0;
- return 1;
- }
-
- if (IS_ENABLED(CONFIG_VBOOT_STARTS_IN_ROMSTAGE)) {
- if (ENV_BOOTBLOCK)
- return 0;
- return 1;
- }
-
- return 0;
-}
-
-/*
- * vb2_check_recovery_request looks up different components to identify if there
- * is a recovery request and returns appropriate reason code:
- * 1. Checks if recovery mode is initiated by EC. If yes, returns
- * VB2_RECOVERY_RO_MANUAL.
- * 2. Checks if recovery request is present in VBNV and returns the code read
- * from it.
- * 3. Checks recovery request in handoff for stages post-cbmem.
- * 4. For non-CBMEM stages, check if vboot verification is done and look-up
- * selected region to identify if vboot_refence library has requested recovery
- * path. If yes, return the reason code from shared data.
- * 5. If nothing applies, return 0 indicating no recovery request.
- */
-int vboot_check_recovery_request(void)
-{
- int reason = 0;
-
- /* EC-initiated recovery. */
- if (get_recovery_mode_switch())
- return VB2_RECOVERY_RO_MANUAL;
-
- /* Recovery request in VBNV. */
- if ((reason = get_recovery_mode_from_vbnv()) != 0)
- return reason;
-
- /*
- * Check recovery flag in vboot_handoff for stages post CBMEM coming
- * online. Since for some stages there is no way to know if cbmem has
- * already come online, try looking up handoff anyways. If it fails,
- * flow will fallback to looking up shared data.
- */
- if (cbmem_possibly_online() &&
- ((reason = vboot_handoff_get_recovery_reason()) != 0))
- return reason;
-
- /*
- * For stages where CBMEM might not be online, identify if vboot
- * verification is already complete and no slot was selected
- * i.e. recovery path was requested.
- */
- if (vboot_possibly_executed() && vb2_logic_executed() &&
- !vb2_is_slot_selected())
- return vb2_get_recovery_reason_shared_data();
-
- return 0;
-}
-
-int vboot_recovery_mode_enabled(void)
-{
- return !!vboot_check_recovery_request();
-}
-
-int __attribute__((weak)) clear_recovery_mode_switch(void)
-{
- // Weak implementation. Nothing to do.
- return 0;
-}
-
-void __attribute__((weak)) log_recovery_mode_switch(void)
-{
- // Weak implementation. Nothing to do.
-}
-
-int __attribute__((weak)) get_recovery_mode_retrain_switch(void)
-{
- return 0;
-}
-
-int vboot_recovery_mode_memory_retrain(void)
-{
- return get_recovery_mode_retrain_switch();
-}
-
-int vboot_developer_mode_enabled(void)
-{
- if (cbmem_possibly_online() && vboot_handoff_check_developer_flag())
- return 1;
-
- return 0;
-}
diff --git a/src/vboot/common.c b/src/vboot/common.c
deleted file mode 100644
index 3e480edbf6..0000000000
--- a/src/vboot/common.c
+++ /dev/null
@@ -1,182 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2014 The ChromiumOS Authors. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <assert.h>
-#include <cbfs.h>
-#include <cbmem.h>
-#include <console/console.h>
-#include <reset.h>
-#include <string.h>
-#include <vb2_api.h>
-#include <vboot/misc.h>
-#include <vboot/symbols.h>
-#include <vboot/vboot_common.h>
-
-struct selected_region {
- uint32_t offset;
- uint32_t size;
-};
-
-/*
- * this is placed at the start of the vboot work buffer. selected_region is used
- * for the verstage to return the location of the selected slot. buffer is used
- * by the vboot2 core. Keep the struct CPU architecture agnostic as it crosses
- * stage boundaries.
- */
-struct vb2_working_data {
- struct selected_region selected_region;
- /* offset of the buffer from the start of this struct */
- uint32_t buffer_offset;
- uint32_t buffer_size;
-};
-
-static const size_t vb_work_buf_size = 16 * KiB;
-
-static struct vb2_working_data * const vboot_get_working_data(void)
-{
- if (IS_ENABLED(CONFIG_VBOOT_STARTS_IN_ROMSTAGE))
- /* cbmem_add() does a cbmem_find() first. */
- return cbmem_add(CBMEM_ID_VBOOT_WORKBUF, vb_work_buf_size);
- else
- return (struct vb2_working_data *)_vboot2_work;
-}
-
-static size_t vb2_working_data_size(void)
-{
- if (IS_ENABLED(CONFIG_VBOOT_STARTS_IN_ROMSTAGE))
- return vb_work_buf_size;
- else
- return _vboot2_work_size;
-}
-
-static struct selected_region *vb2_selected_region(void)
-{
- struct selected_region *sel_reg = NULL;
-
- /* Ramstage and postcar always uses cbmem as a source of truth. */
- if (ENV_RAMSTAGE || ENV_POSTCAR)
- sel_reg = cbmem_find(CBMEM_ID_VBOOT_SEL_REG);
- else if (ENV_ROMSTAGE) {
- /* Try cbmem first. Fall back on working data if not found. */
- sel_reg = cbmem_find(CBMEM_ID_VBOOT_SEL_REG);
-
- if (sel_reg == NULL) {
- struct vb2_working_data *wd = vboot_get_working_data();
- sel_reg = &wd->selected_region;
- }
- } else {
- /* Stages such as bootblock and verstage use working data. */
- struct vb2_working_data *wd = vboot_get_working_data();
- sel_reg = &wd->selected_region;
- }
-
- return sel_reg;
-}
-
-void vb2_init_work_context(struct vb2_context *ctx)
-{
- struct vb2_working_data *wd;
- size_t work_size;
-
- /* First initialize the working data region. */
- work_size = vb2_working_data_size();
- wd = vboot_get_working_data();
- memset(wd, 0, work_size);
-
- /*
- * vboot prefers 16-byte alignment. This takes away 16 bytes
- * from the VBOOT2_WORK region, but the vboot devs said that's okay.
- */
- wd->buffer_offset = ALIGN_UP(sizeof(*wd), 16);
- wd->buffer_size = work_size - wd->buffer_offset;
-
- /* Initialize the vb2_context. */
- memset(ctx, 0, sizeof(*ctx));
- ctx->workbuf = (void *)vb2_get_shared_data();
- ctx->workbuf_size = wd->buffer_size;
-
-}
-
-struct vb2_shared_data *vb2_get_shared_data(void)
-{
- struct vb2_working_data *wd = vboot_get_working_data();
- return (void *)((uintptr_t)wd + wd->buffer_offset);
-}
-
-int vb2_get_selected_region(struct region *region)
-{
- const struct selected_region *reg = vb2_selected_region();
-
- if (reg == NULL)
- return -1;
-
- if (reg->offset == 0 && reg->size == 0)
- return -1;
-
- region->offset = reg->offset;
- region->size = reg->size;
-
- return 0;
-}
-
-void vb2_set_selected_region(const struct region *region)
-{
- struct selected_region *reg = vb2_selected_region();
-
- assert(reg != NULL);
-
- reg->offset = region_offset(region);
- reg->size = region_sz(region);
-}
-
-int vb2_is_slot_selected(void)
-{
- const struct selected_region *reg = vb2_selected_region();
-
- assert(reg != NULL);
-
- return reg->size > 0;
-}
-
-void vb2_store_selected_region(void)
-{
- const struct vb2_working_data *wd;
- struct selected_region *sel_reg;
-
- /* Always use the working data in this path since it's the object
- * which has the result.. */
- wd = vboot_get_working_data();
-
- sel_reg = cbmem_add(CBMEM_ID_VBOOT_SEL_REG, sizeof(*sel_reg));
-
- assert(sel_reg != NULL);
-
- sel_reg->offset = wd->selected_region.offset;
- sel_reg->size = wd->selected_region.size;
-}
-
-/*
- * For platforms that employ VBOOT_STARTS_IN_ROMSTAGE, the vboot
- * verification doesn't happen until after cbmem is brought online.
- * Therefore, the selected region contents would not be initialized
- * so don't automatically add results when cbmem comes online.
- */
-#if !IS_ENABLED(CONFIG_VBOOT_STARTS_IN_ROMSTAGE)
-static void vb2_store_selected_region_cbmem(int unused)
-{
- vb2_store_selected_region();
-}
-ROMSTAGE_CBMEM_INIT_HOOK(vb2_store_selected_region_cbmem)
-#endif
diff --git a/src/vboot/misc.h b/src/vboot/misc.h
deleted file mode 100644
index dc94720ea5..0000000000
--- a/src/vboot/misc.h
+++ /dev/null
@@ -1,40 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2014 The ChromiumOS Authors. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __VBOOT_MISC_H__
-#define __VBOOT_MISC_H__
-
-#include <vboot/vboot_common.h>
-
-struct vb2_context;
-struct vb2_shared_data;
-
-void vboot_fill_handoff(void);
-
-void vb2_init_work_context(struct vb2_context *ctx);
-struct vb2_shared_data *vb2_get_shared_data(void);
-
-/* Returns 0 on success. < 0 on failure. */
-int vb2_get_selected_region(struct region *region);
-void vb2_set_selected_region(const struct region *region);
-int vb2_is_slot_selected(void);
-int vb2_logic_executed(void);
-
-/* Store the selected region in cbmem for later use. */
-void vb2_store_selected_region(void);
-
-void vb2_save_recovery_reason_vbnv(void);
-
-#endif /* __VBOOT_MISC_H__ */
diff --git a/src/vboot/secdata_mock.c b/src/vboot/secdata_mock.c
deleted file mode 100644
index 72ee5b3c11..0000000000
--- a/src/vboot/secdata_mock.c
+++ /dev/null
@@ -1,85 +0,0 @@
-/* Copyright (c) 2015 The Chromium OS Authors. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/*
- * Functions for querying, manipulating and locking rollback indices
- * stored in the TPM NVRAM.
- */
-
-#include <antirollback.h>
-#include <stdlib.h>
-#include <tpm_lite/tlcl.h>
-#include <vb2_api.h>
-
-uint32_t tpm_extend_pcr(struct vb2_context *ctx, int pcr,
- enum vb2_pcr_digest which_digest)
-{
- return TPM_SUCCESS;
-}
-
-uint32_t tpm_clear_and_reenable(void)
-{
- return TPM_SUCCESS;
-}
-
-uint32_t antirollback_read_space_firmware(struct vb2_context *ctx)
-{
- vb2api_secdata_create(ctx);
- return TPM_SUCCESS;
-}
-
-uint32_t antirollback_write_space_firmware(struct vb2_context *ctx)
-{
- return TPM_SUCCESS;
-}
-
-uint32_t antirollback_lock_space_firmware()
-{
- return TPM_SUCCESS;
-}
-
-uint32_t antirollback_lock_space_rec_hash(void)
-{
- return TPM_SUCCESS;
-}
-
-uint32_t antirollback_read_space_rec_hash(uint8_t *data, uint32_t size)
-{
- return TPM_SUCCESS;
-}
-
-uint32_t antirollback_write_space_rec_hash(const uint8_t *data, uint32_t size)
-{
- return TPM_SUCCESS;
-}
-
-uint32_t tlcl_lib_init(void)
-{
- return VB2_SUCCESS;
-}
diff --git a/src/vboot/secdata_tpm.c b/src/vboot/secdata_tpm.c
deleted file mode 100644
index be9d680cc0..0000000000
--- a/src/vboot/secdata_tpm.c
+++ /dev/null
@@ -1,585 +0,0 @@
-/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
-/*
- * Functions for querying, manipulating and locking rollback indices
- * stored in the TPM NVRAM.
- */
-
-#include <antirollback.h>
-#include <stdlib.h>
-#include <string.h>
-#include <tpm_lite/tlcl.h>
-#include <vb2_api.h>
-#include <console/console.h>
-
-#ifndef offsetof
-#define offsetof(A,B) __builtin_offsetof(A,B)
-#endif
-
-#ifdef FOR_TEST
-#include <stdio.h>
-#define VBDEBUG(format, args...) printf(format, ## args)
-#else
-#include <console/console.h>
-#define VBDEBUG(format, args...) \
- printk(BIOS_INFO, "%s():%d: " format, __func__, __LINE__, ## args)
-#endif
-
-#define RETURN_ON_FAILURE(tpm_cmd) do { \
- uint32_t result_; \
- if ((result_ = (tpm_cmd)) != TPM_SUCCESS) { \
- VBDEBUG("Antirollback: %08x returned by " #tpm_cmd \
- "\n", (int)result_); \
- return result_; \
- } \
- } while (0)
-
-
-static uint32_t safe_write(uint32_t index, const void *data, uint32_t length);
-
-uint32_t tpm_extend_pcr(struct vb2_context *ctx, int pcr,
- enum vb2_pcr_digest which_digest)
-{
- uint8_t buffer[VB2_PCR_DIGEST_RECOMMENDED_SIZE];
- uint32_t size = sizeof(buffer);
- int rv;
-
- rv = vb2api_get_pcr_digest(ctx, which_digest, buffer, &size);
- if (rv != VB2_SUCCESS)
- return rv;
- if (size < TPM_PCR_DIGEST)
- return VB2_ERROR_UNKNOWN;
-
- return tlcl_extend(pcr, buffer, NULL);
-}
-
-static uint32_t read_space_firmware(struct vb2_context *ctx)
-{
- int attempts = 3;
-
- while (attempts--) {
- RETURN_ON_FAILURE(tlcl_read(FIRMWARE_NV_INDEX, ctx->secdata,
- VB2_SECDATA_SIZE));
-
- if (vb2api_secdata_check(ctx) == VB2_SUCCESS)
- return TPM_SUCCESS;
-
- VBDEBUG("TPM: %s() - bad CRC\n", __func__);
- }
-
- VBDEBUG("TPM: %s() - too many bad CRCs, giving up\n", __func__);
- return TPM_E_CORRUPTED_STATE;
-}
-
-static uint32_t read_space_rec_hash(uint8_t *data)
-{
- RETURN_ON_FAILURE(tlcl_read(REC_HASH_NV_INDEX, data,
- REC_HASH_NV_SIZE));
- return TPM_SUCCESS;
-}
-
-static uint32_t write_secdata(uint32_t index,
- const uint8_t *secdata,
- uint32_t len)
-{
- uint8_t sd[32];
- uint32_t rv;
- int attempts = 3;
-
- if (len > sizeof(sd)) {
- VBDEBUG("TPM: %s() - data is too large\n", __func__);
- return TPM_E_WRITE_FAILURE;
- }
-
- while (attempts--) {
- rv = safe_write(index, secdata, len);
- /* Can't write, not gonna try again */
- if (rv != TPM_SUCCESS)
- return rv;
-
- /* Read it back to be sure it got the right values. */
- rv = tlcl_read(index, sd, len);
- if (rv == TPM_SUCCESS && memcmp(secdata, sd, len) == 0)
- return rv;
-
- VBDEBUG("TPM: %s() failed. trying again\n", __func__);
- /* Try writing it again. Maybe it was garbled on the way out. */
- }
-
- VBDEBUG("TPM: %s() - too many failures, giving up\n", __func__);
-
- return TPM_E_CORRUPTED_STATE;
-}
-
-/*
- * This is derived from rollback_index.h of vboot_reference. see struct
- * RollbackSpaceKernel for details.
- */
-static const uint8_t secdata_kernel[] = {
- 0x02,
- 0x4C, 0x57, 0x52, 0x47,
- 0x00, 0x00, 0x00, 0x00,
- 0x00, 0x00, 0x00,
- 0xE8,
-};
-
-/*
- * This is used to initialize the TPM space for recovery hash after defining
- * it. Since there is no data available to calculate hash at the point where TPM
- * space is defined, initialize it to all 0s.
- */
-static const uint8_t rec_hash_data[REC_HASH_NV_SIZE] = { };
-
-#if IS_ENABLED(CONFIG_TPM2)
-
-/* Nothing special in the TPM2 path yet. */
-static uint32_t safe_write(uint32_t index, const void *data, uint32_t length)
-{
- return tlcl_write(index, data, length);
-}
-
-static uint32_t set_firmware_space(const void *firmware_blob)
-{
- RETURN_ON_FAILURE(tlcl_define_space(FIRMWARE_NV_INDEX,
- VB2_SECDATA_SIZE));
- RETURN_ON_FAILURE(safe_write(FIRMWARE_NV_INDEX, firmware_blob,
- VB2_SECDATA_SIZE));
- return TPM_SUCCESS;
-}
-
-static uint32_t set_kernel_space(const void *kernel_blob)
-{
- uint32_t rv;
-
- rv = tlcl_define_space(KERNEL_NV_INDEX, sizeof(secdata_kernel));
- if (rv == TPM_E_NV_DEFINED) {
- VBDEBUG("%s: kernel space already exists\n", __func__);
- return TPM_SUCCESS;
- }
-
- if (rv != TPM_SUCCESS)
- return rv;
-
- return safe_write(KERNEL_NV_INDEX, kernel_blob, sizeof(secdata_kernel));
-}
-
-static uint32_t set_rec_hash_space(const uint8_t *data)
-{
- uint32_t rv;
-
- rv = tlcl_define_space(REC_HASH_NV_INDEX, REC_HASH_NV_SIZE);
- if (rv == TPM_E_NV_DEFINED) {
- VBDEBUG("%s: MRC Hash space already exists\n", __func__);
- return TPM_SUCCESS;
- }
-
- if (rv != TPM_SUCCESS)
- return rv;
-
- return safe_write(REC_HASH_NV_INDEX, data, REC_HASH_NV_SIZE);
-}
-
-static uint32_t _factory_initialize_tpm(struct vb2_context *ctx)
-{
- RETURN_ON_FAILURE(tlcl_force_clear());
-
- /*
- * Of all NVRAM spaces defined by this function the firmware space
- * must be defined last, because its existence is considered an
- * indication that TPM factory initialization was successfully
- * completed.
- */
- RETURN_ON_FAILURE(set_kernel_space(secdata_kernel));
-
- if (IS_ENABLED(CONFIG_VBOOT_HAS_REC_HASH_SPACE))
- RETURN_ON_FAILURE(set_rec_hash_space(rec_hash_data));
-
- RETURN_ON_FAILURE(set_firmware_space(ctx->secdata));
-
- return TPM_SUCCESS;
-}
-
-uint32_t tpm_clear_and_reenable(void)
-{
- VBDEBUG("TPM: Clear and re-enable\n");
- RETURN_ON_FAILURE(tlcl_force_clear());
- return TPM_SUCCESS;
-}
-
-uint32_t antirollback_lock_space_firmware(void)
-{
- return tlcl_lock_nv_write(FIRMWARE_NV_INDEX);
-}
-
-uint32_t antirollback_lock_space_rec_hash(void)
-{
- return tlcl_lock_nv_write(REC_HASH_NV_INDEX);
-}
-
-#else
-
-uint32_t tpm_clear_and_reenable(void)
-{
- VBDEBUG("TPM: Clear and re-enable\n");
- RETURN_ON_FAILURE(tlcl_force_clear());
- RETURN_ON_FAILURE(tlcl_set_enable());
- RETURN_ON_FAILURE(tlcl_set_deactivated(0));
-
- return TPM_SUCCESS;
-}
-
-/**
- * Like tlcl_write(), but checks for write errors due to hitting the 64-write
- * limit and clears the TPM when that happens. This can only happen when the
- * TPM is unowned, so it is OK to clear it (and we really have no choice).
- * This is not expected to happen frequently, but it could happen.
- */
-
-static uint32_t safe_write(uint32_t index, const void *data, uint32_t length)
-{
- uint32_t result = tlcl_write(index, data, length);
- if (result == TPM_E_MAXNVWRITES) {
- RETURN_ON_FAILURE(tpm_clear_and_reenable());
- return tlcl_write(index, data, length);
- } else {
- return result;
- }
-}
-
-/**
- * Similarly to safe_write(), this ensures we don't fail a DefineSpace because
- * we hit the TPM write limit. This is even less likely to happen than with
- * writes because we only define spaces once at initialization, but we'd
- * rather be paranoid about this.
- */
-static uint32_t safe_define_space(uint32_t index, uint32_t perm, uint32_t size)
-{
- uint32_t result = tlcl_define_space(index, perm, size);
- if (result == TPM_E_MAXNVWRITES) {
- RETURN_ON_FAILURE(tpm_clear_and_reenable());
- return tlcl_define_space(index, perm, size);
- } else {
- return result;
- }
-}
-
-static uint32_t set_rec_hash_space(const uint8_t *data)
-{
- RETURN_ON_FAILURE(safe_define_space(REC_HASH_NV_INDEX,
- TPM_NV_PER_GLOBALLOCK |
- TPM_NV_PER_PPWRITE,
- REC_HASH_NV_SIZE));
- RETURN_ON_FAILURE(write_secdata(REC_HASH_NV_INDEX, data,
- REC_HASH_NV_SIZE));
-
- return TPM_SUCCESS;
-}
-
-static uint32_t _factory_initialize_tpm(struct vb2_context *ctx)
-{
- TPM_PERMANENT_FLAGS pflags;
- uint32_t result;
-
- result = tlcl_get_permanent_flags(&pflags);
- if (result != TPM_SUCCESS)
- return result;
-
- /*
- * TPM may come from the factory without physical presence finalized.
- * Fix if necessary.
- */
- VBDEBUG("TPM: physicalPresenceLifetimeLock=%d\n",
- pflags.physicalPresenceLifetimeLock);
- if (!pflags.physicalPresenceLifetimeLock) {
- VBDEBUG("TPM: Finalizing physical presence\n");
- RETURN_ON_FAILURE(tlcl_finalize_physical_presence());
- }
-
- /*
- * The TPM will not enforce the NV authorization restrictions until the
- * execution of a TPM_NV_DefineSpace with the handle of
- * TPM_NV_INDEX_LOCK. Here we create that space if it doesn't already
- * exist. */
- VBDEBUG("TPM: nvLocked=%d\n", pflags.nvLocked);
- if (!pflags.nvLocked) {
- VBDEBUG("TPM: Enabling NV locking\n");
- RETURN_ON_FAILURE(tlcl_set_nv_locked());
- }
-
- /* Clear TPM owner, in case the TPM is already owned for some reason. */
- VBDEBUG("TPM: Clearing owner\n");
- RETURN_ON_FAILURE(tpm_clear_and_reenable());
-
- /* Define and initialize the kernel space */
- RETURN_ON_FAILURE(safe_define_space(KERNEL_NV_INDEX,
- TPM_NV_PER_PPWRITE,
- sizeof(secdata_kernel)));
- RETURN_ON_FAILURE(write_secdata(KERNEL_NV_INDEX,
- secdata_kernel,
- sizeof(secdata_kernel)));
-
- /* Defines and sets vb2 secdata space */
- vb2api_secdata_create(ctx);
- RETURN_ON_FAILURE(safe_define_space(FIRMWARE_NV_INDEX,
- TPM_NV_PER_GLOBALLOCK |
- TPM_NV_PER_PPWRITE,
- VB2_SECDATA_SIZE));
- RETURN_ON_FAILURE(write_secdata(FIRMWARE_NV_INDEX,
- ctx->secdata,
- VB2_SECDATA_SIZE));
-
- /* Define and set rec hash space, if available. */
- if (IS_ENABLED(CONFIG_VBOOT_HAS_REC_HASH_SPACE))
- RETURN_ON_FAILURE(set_rec_hash_space(rec_hash_data));
-
- return TPM_SUCCESS;
-}
-
-uint32_t antirollback_lock_space_firmware(void)
-{
- return tlcl_set_global_lock();
-}
-
-uint32_t antirollback_lock_space_rec_hash(void)
-{
- /*
- * Nothing needs to be done here, since global lock is already set while
- * locking firmware space.
- */
- return TPM_SUCCESS;
-}
-#endif
-
-/**
- * Perform one-time initializations.
- *
- * Create the NVRAM spaces, and set their initial values as needed. Sets the
- * nvLocked bit and ensures the physical presence command is enabled and
- * locked.
- */
-static uint32_t factory_initialize_tpm(struct vb2_context *ctx)
-{
- uint32_t result;
-
- /* Defines and sets vb2 secdata space */
- vb2api_secdata_create(ctx);
-
- VBDEBUG("TPM: factory initialization\n");
-
- /*
- * Do a full test. This only happens the first time the device is
- * turned on in the factory, so performance is not an issue. This is
- * almost certainly not necessary, but it gives us more confidence
- * about some code paths below that are difficult to
- * test---specifically the ones that set lifetime flags, and are only
- * executed once per physical TPM.
- */
- result = tlcl_self_test_full();
- if (result != TPM_SUCCESS)
- return result;
-
- result = _factory_initialize_tpm(ctx);
- if (result != TPM_SUCCESS)
- return result;
-
- VBDEBUG("TPM: factory initialization successful\n");
-
- return TPM_SUCCESS;
-}
-
-/*
- * SetupTPM starts the TPM and establishes the root of trust for the
- * anti-rollback mechanism. SetupTPM can fail for three reasons. 1 A bug. 2 a
- * TPM hardware failure. 3 An unexpected TPM state due to some attack. In
- * general we cannot easily distinguish the kind of failure, so our strategy is
- * to reboot in recovery mode in all cases. The recovery mode calls SetupTPM
- * again, which executes (almost) the same sequence of operations. There is a
- * good chance that, if recovery mode was entered because of a TPM failure, the
- * failure will repeat itself. (In general this is impossible to guarantee
- * because we have no way of creating the exact TPM initial state at the
- * previous boot.) In recovery mode, we ignore the failure and continue, thus
- * giving the recovery kernel a chance to fix things (that's why we don't set
- * bGlobalLock). The choice is between a knowingly insecure device and a
- * bricked device.
- *
- * As a side note, observe that we go through considerable hoops to avoid using
- * the STCLEAR permissions for the index spaces. We do this to avoid writing
- * to the TPM flashram at every reboot or wake-up, because of concerns about
- * the durability of the NVRAM.
- */
-uint32_t setup_tpm(struct vb2_context *ctx)
-{
- uint8_t disable;
- uint8_t deactivated;
- uint32_t result;
-
- RETURN_ON_FAILURE(tlcl_lib_init());
-
- /* Handle special init for S3 resume path */
- if (ctx->flags & VB2_CONTEXT_S3_RESUME) {
- result = tlcl_resume();
- if (result == TPM_E_INVALID_POSTINIT)
- printk(BIOS_DEBUG, "TPM: Already initialized.\n");
- return TPM_SUCCESS;
- }
-
- if (IS_ENABLED(CONFIG_VBOOT_SOFT_REBOOT_WORKAROUND)) {
- result = tlcl_startup();
- if (result == TPM_E_INVALID_POSTINIT) {
- /*
- * Some prototype hardware doesn't reset the TPM on a CPU
- * reset. We do a hard reset to get around this.
- */
- VBDEBUG("TPM: soft reset detected\n");
- ctx->flags |= VB2_CONTEXT_SECDATA_WANTS_REBOOT;
- return TPM_E_MUST_REBOOT;
- } else if (result != TPM_SUCCESS) {
- VBDEBUG("TPM: tlcl_startup returned %08x\n", result);
- return result;
- }
- } else
- RETURN_ON_FAILURE(tlcl_startup());
-
- /*
- * Some TPMs start the self test automatically at power on. In that case
- * we don't need to call ContinueSelfTest. On some (other) TPMs,
- * continue_self_test may block. In that case, we definitely don't want
- * to call it here. For TPMs in the intersection of these two sets, we
- * are screwed. (In other words: TPMs that require manually starting the
- * self-test AND block will have poor performance until we split
- * tlcl_send_receive() into send() and receive(), and have a state
- * machine to control setup.)
- *
- * This comment is likely to become obsolete in the near future, so
- * don't trust it. It may have not been updated.
- */
-#ifdef TPM_MANUAL_SELFTEST
-#ifdef TPM_BLOCKING_CONTINUESELFTEST
-#warning "lousy TPM!"
-#endif
- RETURN_ON_FAILURE(tlcl_continue_self_test());
-#endif
- result = tlcl_assert_physical_presence();
- if (result != TPM_SUCCESS) {
- /*
- * It is possible that the TPM was delivered with the physical
- * presence command disabled. This tries enabling it, then
- * tries asserting PP again.
- */
- RETURN_ON_FAILURE(tlcl_physical_presence_cmd_enable());
- RETURN_ON_FAILURE(tlcl_assert_physical_presence());
- }
-
- /* Check that the TPM is enabled and activated. */
- RETURN_ON_FAILURE(tlcl_get_flags(&disable, &deactivated, NULL));
- if (disable || deactivated) {
- VBDEBUG("TPM: disabled (%d) or deactivated (%d). Fixing...\n",
- disable, deactivated);
- RETURN_ON_FAILURE(tlcl_set_enable());
- RETURN_ON_FAILURE(tlcl_set_deactivated(0));
- VBDEBUG("TPM: Must reboot to re-enable\n");
- ctx->flags |= VB2_CONTEXT_SECDATA_WANTS_REBOOT;
- return TPM_E_MUST_REBOOT;
- }
-
- VBDEBUG("TPM: SetupTPM() succeeded\n");
- return TPM_SUCCESS;
-}
-
-uint32_t antirollback_read_space_firmware(struct vb2_context *ctx)
-{
- uint32_t rv;
-
- rv = setup_tpm(ctx);
- if (rv)
- return rv;
-
- /* Read the firmware space. */
- rv = read_space_firmware(ctx);
- if (rv == TPM_E_BADINDEX) {
- /*
- * This seems the first time we've run. Initialize the TPM.
- */
- VBDEBUG("TPM: Not initialized yet.\n");
- RETURN_ON_FAILURE(factory_initialize_tpm(ctx));
- } else if (rv != TPM_SUCCESS) {
- VBDEBUG("TPM: Firmware space in a bad state; giving up.\n");
- //RETURN_ON_FAILURE(factory_initialize_tpm(ctx));
- return TPM_E_CORRUPTED_STATE;
- }
-
- return TPM_SUCCESS;
-}
-
-uint32_t antirollback_write_space_firmware(struct vb2_context *ctx)
-{
- if (IS_ENABLED(CONFIG_CR50_IMMEDIATELY_COMMIT_FW_SECDATA))
- tlcl_cr50_enable_nvcommits();
- return write_secdata(FIRMWARE_NV_INDEX, ctx->secdata, VB2_SECDATA_SIZE);
-}
-
-uint32_t antirollback_read_space_rec_hash(uint8_t *data, uint32_t size)
-{
- if (size != REC_HASH_NV_SIZE) {
- VBDEBUG("TPM: Incorrect buffer size for rec hash. "
- "(Expected=0x%x Actual=0x%x).\n", REC_HASH_NV_SIZE,
- size);
- return TPM_E_READ_FAILURE;
- }
- return read_space_rec_hash(data);
-}
-
-uint32_t antirollback_write_space_rec_hash(const uint8_t *data, uint32_t size)
-{
- uint8_t spc_data[REC_HASH_NV_SIZE];
- uint32_t rv;
-
- if (size != REC_HASH_NV_SIZE) {
- VBDEBUG("TPM: Incorrect buffer size for rec hash. "
- "(Expected=0x%x Actual=0x%x).\n", REC_HASH_NV_SIZE,
- size);
- return TPM_E_WRITE_FAILURE;
- }
-
- rv = read_space_rec_hash(spc_data);
- if (rv == TPM_E_BADINDEX) {
- /*
- * If space is not defined already for recovery hash, define
- * new space.
- */
- VBDEBUG("TPM: Initializing recovery hash space.\n");
- return set_rec_hash_space(data);
- }
-
- if (rv != TPM_SUCCESS)
- return rv;
-
- return write_secdata(REC_HASH_NV_INDEX, data, size);
-}
diff --git a/src/vboot/symbols.h b/src/vboot/symbols.h
deleted file mode 100644
index fb3d6545f8..0000000000
--- a/src/vboot/symbols.h
+++ /dev/null
@@ -1,28 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2016 Google Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __VBOOT_SYMBOLS_H__
-#define __VBOOT_SYMBOLS_H__
-
-extern u8 _vboot2_work[];
-extern u8 _evboot2_work[];
-#define _vboot2_work_size (_evboot2_work - _vboot2_work)
-
-/* Careful: _e<stage> and _<stage>_size only defined for the current stage! */
-extern u8 _verstage[];
-extern u8 _everstage[];
-#define _verstage_size (_everstage - _verstage)
-
-#endif /* __VBOOT_SYMBOLS_H__ */
diff --git a/src/vboot/vbnv.c b/src/vboot/vbnv.c
deleted file mode 100644
index 79bdc8e5df..0000000000
--- a/src/vboot/vbnv.c
+++ /dev/null
@@ -1,155 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2016 Google Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <arch/early_variables.h>
-#include <string.h>
-#include <types.h>
-#include <vboot/vbnv.h>
-#include <vboot/vbnv_layout.h>
-
-static int vbnv_initialized CAR_GLOBAL;
-static uint8_t vbnv[VBOOT_VBNV_BLOCK_SIZE] CAR_GLOBAL;
-
-/* Wrappers for accessing the variables marked as CAR_GLOBAL. */
-static inline int is_vbnv_initialized(void)
-{
- return car_get_var(vbnv_initialized);
-}
-
-static inline uint8_t *vbnv_data_addr(int index)
-{
- uint8_t *vbnv_arr = car_get_var_ptr(vbnv);
-
- return &vbnv_arr[index];
-}
-
-static inline uint8_t vbnv_data(int index)
-{
- return *vbnv_data_addr(index);
-}
-
-/* Return CRC-8 of the data, using x^8 + x^2 + x + 1 polynomial. */
-static uint8_t crc8_vbnv(const uint8_t *data, int len)
-{
- unsigned crc = 0;
- int i, j;
-
- for (j = len; j; j--, data++) {
- crc ^= (*data << 8);
- for (i = 8; i; i--) {
- if (crc & 0x8000)
- crc ^= (0x1070 << 3);
- crc <<= 1;
- }
- }
-
- return (uint8_t) (crc >> 8);
-}
-
-void vbnv_reset(uint8_t *vbnv_copy)
-{
- memset(vbnv_copy, 0, VBOOT_VBNV_BLOCK_SIZE);
-}
-
-/* Read VBNV data into cache. */
-static void vbnv_setup(void)
-{
- if (!is_vbnv_initialized()) {
- read_vbnv(vbnv_data_addr(0));
- car_set_var(vbnv_initialized, 1);
- }
-}
-
-/* Verify VBNV header and checksum. */
-int verify_vbnv(uint8_t *vbnv_copy)
-{
- return (HEADER_SIGNATURE == (vbnv_copy[HEADER_OFFSET] & HEADER_MASK)) &&
- (crc8_vbnv(vbnv_copy, CRC_OFFSET) == vbnv_copy[CRC_OFFSET]);
-}
-
-/* Re-generate VBNV checksum. */
-void regen_vbnv_crc(uint8_t *vbnv_copy)
-{
- vbnv_copy[CRC_OFFSET] = crc8_vbnv(vbnv_copy, CRC_OFFSET);
-}
-
-/*
- * Read VBNV data from configured storage backend.
- * If VBNV verification fails, reset the vbnv copy.
- */
-void read_vbnv(uint8_t *vbnv_copy)
-{
- if (IS_ENABLED(CONFIG_VBOOT_VBNV_CMOS))
- read_vbnv_cmos(vbnv_copy);
- else if (IS_ENABLED(CONFIG_VBOOT_VBNV_EC))
- read_vbnv_ec(vbnv_copy);
- else if (IS_ENABLED(CONFIG_VBOOT_VBNV_FLASH))
- read_vbnv_flash(vbnv_copy);
-
- /* Check data for consistency */
- if (!verify_vbnv(vbnv_copy))
- vbnv_reset(vbnv_copy);
-}
-
-/*
- * Write VBNV data to configured storage backend.
- * This assumes that the caller has updated the CRC already.
- */
-void save_vbnv(const uint8_t *vbnv_copy)
-{
- if (IS_ENABLED(CONFIG_VBOOT_VBNV_CMOS))
- save_vbnv_cmos(vbnv_copy);
- else if (IS_ENABLED(CONFIG_VBOOT_VBNV_EC))
- save_vbnv_ec(vbnv_copy);
- else if (IS_ENABLED(CONFIG_VBOOT_VBNV_FLASH))
- save_vbnv_flash(vbnv_copy);
-
- /* Clear initialized flag to force cached data to be updated */
- car_set_var(vbnv_initialized, 0);
-}
-
-/* Save a recovery reason into VBNV. */
-void set_recovery_mode_into_vbnv(int recovery_reason)
-{
- uint8_t vbnv_copy[VBOOT_VBNV_BLOCK_SIZE];
-
- read_vbnv(vbnv_copy);
-
- vbnv_copy[RECOVERY_OFFSET] = recovery_reason;
- vbnv_copy[CRC_OFFSET] = crc8_vbnv(vbnv_copy, CRC_OFFSET);
-
- save_vbnv(vbnv_copy);
-}
-
-/* Read the recovery reason from VBNV. */
-int get_recovery_mode_from_vbnv(void)
-{
- vbnv_setup();
- return vbnv_data(RECOVERY_OFFSET);
-}
-
-/* Read the BOOT_OPROM_NEEDED flag from VBNV. */
-int vboot_wants_oprom(void)
-{
- vbnv_setup();
- return (vbnv_data(BOOT_OFFSET) & BOOT_OPROM_NEEDED) ? 1 : 0;
-}
-
-void vbnv_init(uint8_t *vbnv_copy)
-{
- if (IS_ENABLED(CONFIG_VBOOT_VBNV_CMOS))
- vbnv_init_cmos(vbnv_copy);
- read_vbnv(vbnv_copy);
-}
diff --git a/src/vboot/vbnv.h b/src/vboot/vbnv.h
deleted file mode 100644
index 0288d0df4d..0000000000
--- a/src/vboot/vbnv.h
+++ /dev/null
@@ -1,51 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2016 Google Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __VBOOT_VBNV_H__
-#define __VBOOT_VBNV_H__
-
-#include <types.h>
-
-/* Generic functions */
-void read_vbnv(uint8_t *vbnv_copy);
-void save_vbnv(const uint8_t *vbnv_copy);
-int verify_vbnv(uint8_t *vbnv_copy);
-void regen_vbnv_crc(uint8_t *vbnv_copy);
-int get_recovery_mode_from_vbnv(void);
-void set_recovery_mode_into_vbnv(int recovery_reason);
-int vboot_wants_oprom(void);
-/* Initialize and read vbnv. This is used in the main vboot logic path. */
-void vbnv_init(uint8_t *vbnv_copy);
-/* Reset vbnv snapshot to a known state. */
-void vbnv_reset(uint8_t *vbnv_copy);
-
-/* CMOS backend */
-/* Initialize the vbnv cmos backing store. The vbnv_copy pointer is used for
- optional temporary storage in the init function. */
-void vbnv_init_cmos(uint8_t *vbnv_copy);
-/* Return non-zero if cmos power was lost. */
-int vbnv_cmos_failed(void);
-void read_vbnv_cmos(uint8_t *vbnv_copy);
-void save_vbnv_cmos(const uint8_t *vbnv_copy);
-
-/* Flash backend */
-void read_vbnv_flash(uint8_t *vbnv_copy);
-void save_vbnv_flash(const uint8_t *vbnv_copy);
-
-/* EC backend */
-void read_vbnv_ec(uint8_t *vbnv_copy);
-void save_vbnv_ec(const uint8_t *vbnv_copy);
-
-#endif /* __VBOOT_VBNV_H__ */
diff --git a/src/vboot/vbnv_cmos.c b/src/vboot/vbnv_cmos.c
deleted file mode 100644
index a311fddbb1..0000000000
--- a/src/vboot/vbnv_cmos.c
+++ /dev/null
@@ -1,114 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <bootstate.h>
-#include <console/console.h>
-#include <types.h>
-#include <pc80/mc146818rtc.h>
-#include <vboot/vbnv.h>
-#include <vboot/vbnv_layout.h>
-
-static void clear_vbnv_battery_cutoff_flag(uint8_t *vbnv_copy)
-{
- /*
- * Currently battery cutoff is done in payload stage, which does not
- * update backup VBNV. And doing battery cutoff will invalidate CMOS.
- * This means for every reboot after cutoff, read_vbnv_cmos will reload
- * backup VBNV and try to cutoff again, causing endless reboot loop.
- * So we should always clear battery cutoff flag from loaded backup.
- */
- if (vbnv_copy[MISC_FLAGS_OFFSET] & MISC_FLAGS_BATTERY_CUTOFF_MASK) {
- printk(BIOS_INFO, "VBNV: Remove battery cut-off request.\n");
- vbnv_copy[MISC_FLAGS_OFFSET] &= ~MISC_FLAGS_BATTERY_CUTOFF_MASK;
- regen_vbnv_crc(vbnv_copy);
- }
-}
-
-/* Return non-zero if backup was used. */
-static int restore_from_backup(uint8_t *vbnv_copy)
-{
- if (!IS_ENABLED(CONFIG_VBOOT_VBNV_CMOS_BACKUP_TO_FLASH))
- return 0;
-
- printk(BIOS_INFO, "VBNV: CMOS invalid, restoring from flash\n");
- read_vbnv_flash(vbnv_copy);
-
- if (verify_vbnv(vbnv_copy)) {
- clear_vbnv_battery_cutoff_flag(vbnv_copy);
- save_vbnv_cmos(vbnv_copy);
- printk(BIOS_INFO, "VBNV: Flash backup restored\n");
- return 1;
- }
-
- printk(BIOS_INFO, "VBNV: Restore from flash failed\n");
-
- return 0;
-}
-
-void read_vbnv_cmos(uint8_t *vbnv_copy)
-{
- int i;
-
- for (i = 0; i < VBOOT_VBNV_BLOCK_SIZE; i++)
- vbnv_copy[i] = cmos_read(CONFIG_VBOOT_VBNV_OFFSET + 14 + i);
-
- /* Verify contents before attempting a restore from backup storage. */
- if (verify_vbnv(vbnv_copy))
- return;
-
- restore_from_backup(vbnv_copy);
-}
-
-void save_vbnv_cmos(const uint8_t *vbnv_copy)
-{
- int i;
-
- for (i = 0; i < VBOOT_VBNV_BLOCK_SIZE; i++)
- cmos_write(vbnv_copy[i], CONFIG_VBOOT_VBNV_OFFSET + 14 + i);
-}
-
-void vbnv_init_cmos(uint8_t *vbnv_copy)
-{
- /* If no cmos failure just defer to the normal read path for checking
- vbnv contents' integrity. */
- if (!vbnv_cmos_failed())
- return;
-
- /* In the case of cmos failure force the backup. If backup wasn't used
- force the vbnv cmos to be reset. */
- if (!restore_from_backup(vbnv_copy)) {
- vbnv_reset(vbnv_copy);
- /* This parallels the vboot_reference implementation. */
- vbnv_copy[HEADER_OFFSET] = HEADER_SIGNATURE |
- HEADER_FIRMWARE_SETTINGS_RESET |
- HEADER_KERNEL_SETTINGS_RESET;
- regen_vbnv_crc(vbnv_copy);
- save_vbnv_cmos(vbnv_copy);
- }
-}
-
-#if IS_ENABLED(CONFIG_VBOOT_VBNV_CMOS_BACKUP_TO_FLASH)
-static void back_up_vbnv_cmos(void *unused)
-{
- uint8_t vbnv_cmos[VBOOT_VBNV_BLOCK_SIZE];
-
- /* Read current VBNV from CMOS. */
- read_vbnv_cmos(vbnv_cmos);
-
- /* Save to flash, will only be saved if different. */
- save_vbnv_flash(vbnv_cmos);
-}
-BOOT_STATE_INIT_ENTRY(BS_POST_DEVICE, BS_ON_EXIT, back_up_vbnv_cmos, NULL);
-#endif
diff --git a/src/vboot/vbnv_ec.c b/src/vboot/vbnv_ec.c
deleted file mode 100644
index 99e2b82b1f..0000000000
--- a/src/vboot/vbnv_ec.c
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2011 The ChromiumOS Authors. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <types.h>
-#include <ec/google/chromeec/ec.h>
-#include <vboot/vbnv.h>
-#include <vboot/vbnv_layout.h>
-
-void read_vbnv_ec(uint8_t *vbnv_copy)
-{
- google_chromeec_vbnv_context(1, vbnv_copy, VBOOT_VBNV_BLOCK_SIZE);
-}
-
-void save_vbnv_ec(const uint8_t *vbnv_copy)
-{
- google_chromeec_vbnv_context(0, (uint8_t *)vbnv_copy,
- VBOOT_VBNV_BLOCK_SIZE);
-}
diff --git a/src/vboot/vbnv_flash.c b/src/vboot/vbnv_flash.c
deleted file mode 100644
index dd128a9235..0000000000
--- a/src/vboot/vbnv_flash.c
+++ /dev/null
@@ -1,181 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2014 The ChromiumOS Authors. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <arch/early_variables.h>
-#include <assert.h>
-#include <commonlib/region.h>
-#include <console/console.h>
-#include <string.h>
-#include <vb2_api.h>
-#include <vboot_nvstorage.h>
-#include <vboot/vboot_common.h>
-#include <vboot/vbnv.h>
-#include <vboot/vbnv_layout.h>
-
-#define BLOB_SIZE VB2_NVDATA_SIZE
-
-struct vbnv_flash_ctx {
- /* VBNV flash is initialized */
- int initialized;
-
- /* Offset of the current nvdata in flash */
- int blob_offset;
-
- /* Offset of the topmost nvdata blob in flash */
- int top_offset;
-
- /* Region to store and retrieve the VBNV contents. */
- struct region_device vbnv_dev;
-
- /* Cache of the current nvdata */
- uint8_t cache[BLOB_SIZE];
-};
-static struct vbnv_flash_ctx vbnv_flash CAR_GLOBAL;
-
-/*
- * This code assumes that flash is erased to 1-bits, and write operations can
- * only change 1-bits to 0-bits. So if the new contents only change 1-bits to
- * 0-bits, we can reuse the current blob.
- */
-static inline uint8_t erase_value(void)
-{
- return 0xff;
-}
-
-static inline int can_overwrite(uint8_t current, uint8_t new)
-{
- return (current & new) == new;
-}
-
-static int init_vbnv(void)
-{
- struct vbnv_flash_ctx *ctx = car_get_var_ptr(&vbnv_flash);
- struct region_device *rdev = &ctx->vbnv_dev;
- uint8_t buf[BLOB_SIZE];
- uint8_t empty_blob[BLOB_SIZE];
- int used_below, empty_above;
- int offset;
- int i;
-
- if (vboot_named_region_device_rw("RW_NVRAM", rdev) ||
- region_device_sz(rdev) < BLOB_SIZE) {
- printk(BIOS_ERR, "%s: failed to locate NVRAM\n", __func__);
- return 1;
- }
-
- /* Prepare an empty blob to compare against. */
- for (i = 0; i < BLOB_SIZE; i++)
- empty_blob[i] = erase_value();
-
- ctx->top_offset = region_device_sz(rdev) - BLOB_SIZE;
-
- /* Binary search for the border between used and empty */
- used_below = 0;
- empty_above = region_device_sz(rdev) / BLOB_SIZE;
-
- while (used_below + 1 < empty_above) {
- int guess = (used_below + empty_above) / 2;
- if (rdev_readat(rdev, buf, guess * BLOB_SIZE, BLOB_SIZE) < 0) {
- printk(BIOS_ERR, "failed to read nvdata\n");
- return 1;
- }
- if (!memcmp(buf, empty_blob, BLOB_SIZE))
- empty_above = guess;
- else
- used_below = guess;
- }
-
- /*
- * Offset points to the last non-empty blob. Or if all blobs are empty
- * (nvram is totally erased), point to the first blob.
- */
- offset = used_below * BLOB_SIZE;
-
- /* reread the nvdata and write it to the cache */
- if (rdev_readat(rdev, ctx->cache, offset, BLOB_SIZE) < 0) {
- printk(BIOS_ERR, "failed to read nvdata\n");
- return 1;
- }
-
- ctx->blob_offset = offset;
- ctx->initialized = 1;
-
- return 0;
-}
-
-static int erase_nvram(void)
-{
- struct vbnv_flash_ctx *ctx = car_get_var_ptr(&vbnv_flash);
- const struct region_device *rdev = &ctx->vbnv_dev;
-
- if (rdev_eraseat(rdev, 0, region_device_sz(rdev)) < 0) {
- printk(BIOS_ERR, "failed to erase nvram\n");
- return 1;
- }
-
- printk(BIOS_INFO, "nvram is cleared\n");
- return 0;
-}
-
-void read_vbnv_flash(uint8_t *vbnv_copy)
-{
- struct vbnv_flash_ctx *ctx = car_get_var_ptr(&vbnv_flash);
-
- if (!ctx->initialized)
- if (init_vbnv())
- return; /* error */
-
- memcpy(vbnv_copy, ctx->cache, BLOB_SIZE);
-}
-
-void save_vbnv_flash(const uint8_t *vbnv_copy)
-{
- struct vbnv_flash_ctx *ctx = car_get_var_ptr(&vbnv_flash);
- int new_offset;
- int i;
- const struct region_device *rdev = &ctx->vbnv_dev;
-
- if (!ctx->initialized)
- if (init_vbnv())
- return; /* error */
-
- /* Bail out if there have been no changes. */
- if (!memcmp(vbnv_copy, ctx->cache, BLOB_SIZE))
- return;
-
- new_offset = ctx->blob_offset;
-
- /* See if we can overwrite the current blob with the new one */
- for (i = 0; i < BLOB_SIZE; i++) {
- if (!can_overwrite(ctx->cache[i], vbnv_copy[i])) {
- /* unable to overwrite. need to use the next blob */
- new_offset += BLOB_SIZE;
- if (new_offset > ctx->top_offset) {
- if (erase_nvram())
- return; /* error */
- new_offset = 0;
- }
- break;
- }
- }
-
- if (rdev_writeat(rdev, vbnv_copy, new_offset, BLOB_SIZE) == BLOB_SIZE) {
- /* write was successful. safely move pointer forward */
- ctx->blob_offset = new_offset;
- memcpy(ctx->cache, vbnv_copy, BLOB_SIZE);
- } else {
- printk(BIOS_ERR, "failed to save nvdata\n");
- }
-}
diff --git a/src/vboot/vbnv_layout.h b/src/vboot/vbnv_layout.h
deleted file mode 100644
index 1dc01c909a..0000000000
--- a/src/vboot/vbnv_layout.h
+++ /dev/null
@@ -1,50 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2015 The ChromiumOS Authors. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#ifndef __VBOOT_VBNV_LAYOUT_H__
-#define __VBOOT_VBNV_LAYOUT_H__
-
-#define VBOOT_VBNV_BLOCK_SIZE 16 /* Size of NV storage block in bytes */
-
-/* Constants for NV storage. We use this rather than structs and
- * bitfields so the data format is consistent across platforms and
- * compilers.
- */
-#define HEADER_OFFSET 0
-#define HEADER_MASK 0xC0
-#define HEADER_SIGNATURE 0x40
-#define HEADER_FIRMWARE_SETTINGS_RESET 0x20
-#define HEADER_KERNEL_SETTINGS_RESET 0x10
-
-#define BOOT_OFFSET 1
-#define BOOT_DEBUG_RESET_MODE 0x80
-#define BOOT_DISABLE_DEV_REQUEST 0x40
-#define BOOT_OPROM_NEEDED 0x20
-#define BOOT_TRY_B_COUNT_MASK 0x0F
-
-#define RECOVERY_OFFSET 2
-#define LOCALIZATION_OFFSET 3
-
-#define DEV_FLAGS_OFFSET 4
-#define DEV_BOOT_USB_MASK 0x01
-#define DEV_BOOT_SIGNED_ONLY_MASK 0x02
-
-#define MISC_FLAGS_OFFSET 8
-#define MISC_FLAGS_BATTERY_CUTOFF_MASK 0x08
-
-#define KERNEL_FIELD_OFFSET 11
-#define CRC_OFFSET 15
-
-#endif /* __VBOOT_VBNV_LAYOUT_H__ */
diff --git a/src/vboot/vboot_common.c b/src/vboot/vboot_common.c
deleted file mode 100644
index 515b368f91..0000000000
--- a/src/vboot/vboot_common.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2014 The ChromiumOS Authors. All rights reserved.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <boot/coreboot_tables.h>
-#include <boot_device.h>
-#include <cbmem.h>
-#include <console/cbmem_console.h>
-#include <console/console.h>
-#include <fmap.h>
-#include <reset.h>
-#include <rules.h>
-#include <stddef.h>
-#include <string.h>
-#include <vboot/vboot_common.h>
-
-int vboot_named_region_device(const char *name, struct region_device *rdev)
-{
- return fmap_locate_area_as_rdev(name, rdev);
-}
-
-int vboot_named_region_device_rw(const char *name, struct region_device *rdev)
-{
- return fmap_locate_area_as_rdev_rw(name, rdev);
-}
-
-/* ========================== VBOOT HANDOFF APIs =========================== */
-int vboot_get_handoff_info(void **addr, uint32_t *size)
-{
- /*
- * vboot_handoff is present only after cbmem comes online. If we are in
- * pre-ram stage, then bail out early.
- */
- if (ENV_BOOTBLOCK ||
- (ENV_VERSTAGE && IS_ENABLED(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK)))
- return -1;
-
- struct vboot_handoff *vboot_handoff;
- vboot_handoff = cbmem_find(CBMEM_ID_VBOOT_HANDOFF);
-
- if (vboot_handoff == NULL)
- return -1;
-
- *addr = vboot_handoff;
-
- if (size)
- *size = sizeof(*vboot_handoff);
- return 0;
-}
-
-static int vboot_get_handoff_flag(uint32_t flag)
-{
- struct vboot_handoff *vbho;
-
- /*
- * If vboot_handoff cannot be found, return default value of flag as 0.
- */
- if (vboot_get_handoff_info((void **)&vbho, NULL))
- return 0;
-
- return !!(vbho->init_params.out_flags & flag);
-}
-
-int vboot_handoff_skip_display_init(void)
-{
- return !vboot_get_handoff_flag(VB_INIT_OUT_ENABLE_DISPLAY);
-}
-
-int vboot_handoff_check_developer_flag(void)
-{
- return vboot_get_handoff_flag(VB_INIT_OUT_ENABLE_DEVELOPER);
-}
-
-int vboot_handoff_check_recovery_flag(void)
-{
- return vboot_get_handoff_flag(VB_INIT_OUT_ENABLE_RECOVERY);
-}
-
-int vboot_handoff_get_recovery_reason(void)
-{
- struct vboot_handoff *vbho;
- VbSharedDataHeader *sd;
-
- if (vboot_get_handoff_info((void **)&vbho, NULL))
- return 0;
-
- sd = (VbSharedDataHeader *)vbho->shared_data;
-
- return sd->recovery_reason;
-}
-
-/* ============================ VBOOT REBOOT ============================== */
-void __attribute__((weak)) vboot_platform_prepare_reboot(void)
-{
-}
-
-void vboot_reboot(void)
-{
- if (IS_ENABLED(CONFIG_CONSOLE_CBMEM_DUMP_TO_UART))
- cbmem_dump_console();
- vboot_platform_prepare_reboot();
- hard_reset();
- die("failed to reboot");
-}
diff --git a/src/vboot/vboot_common.h b/src/vboot/vboot_common.h
deleted file mode 100644
index 8c92f7f131..0000000000
--- a/src/vboot/vboot_common.h
+++ /dev/null
@@ -1,118 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2014 Google, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-#ifndef __VBOOT_VBOOT_COMMON_H__
-#define __VBOOT_VBOOT_COMMON_H__
-
-#include <commonlib/region.h>
-#include <stdint.h>
-#include <compiler.h>
-#include <vboot_api.h>
-#include <vboot_struct.h>
-
-/* Locate vboot area by name. Returns 0 on success and -1 on error. */
-int vboot_named_region_device(const char *name, struct region_device *rdev);
-
-/* Like vboot_named_region_device() but provides a RW region device. */
-int vboot_named_region_device_rw(const char *name, struct region_device *rdev);
-
-/*
- * Function to check if there is a request to enter recovery mode. Returns
- * reason code if request to enter recovery mode is present, otherwise 0.
- */
-int vboot_check_recovery_request(void);
-
-/* ========================== VBOOT HANDOFF APIs =========================== */
-/*
- * The vboot_handoff structure contains the data to be consumed by downstream
- * firmware after firmware selection has been completed. Namely it provides
- * vboot shared data as well as the flags from VbInit.
- */
-struct vboot_handoff {
- VbInitParams init_params;
- uint32_t selected_firmware;
- char shared_data[VB_SHARED_DATA_MIN_SIZE];
-} __packed;
-
-/*
- * vboot_get_handoff_info returns pointer to the vboot_handoff structure if
- * available. vboot_handoff is available only after CBMEM comes online. If size
- * is not NULL, size of the vboot_handoff structure is returned in it.
- * Returns 0 on success and -1 on error.
- */
-int vboot_get_handoff_info(void **addr, uint32_t *size);
-
-/*
- * The following functions read vboot_handoff structure to obtain requested
- * information. If vboot handoff is not available, 0 is returned by default.
- * If vboot handoff is available:
- * Returns 1 for flag if true
- * Returns 0 for flag if false
- * Returns value read for other fields
- */
-int vboot_handoff_skip_display_init(void);
-int vboot_handoff_check_recovery_flag(void);
-int vboot_handoff_check_developer_flag(void);
-int vboot_handoff_get_recovery_reason(void);
-
-/* ============================ VBOOT REBOOT ============================== */
-/*
- * vboot_reboot handles the reboot requests made by vboot_reference library. It
- * allows the platform to run any preparation steps before the reboot and then
- * does a hard reset.
- */
-void vboot_reboot(void);
-
-/* Allow the platform to do any clean up work when vboot requests a reboot. */
-void vboot_platform_prepare_reboot(void);
-
-/* ============================ VBOOT RESUME ============================== */
-/*
- * Save the provided hash digest to a secure location to check against in
- * the resume path. Returns 0 on success, < 0 on error.
- */
-int vboot_save_hash(void *digest, size_t digest_size);
-
-/*
- * Retrieve the previously saved hash digest. Returns 0 on success,
- * < 0 on error.
- */
-int vboot_retrieve_hash(void *digest, size_t digest_size);
-
-/*
- * Determine if the platform is resuming from suspend. Returns 0 when
- * not resuming, > 0 if resuming, and < 0 on error.
- */
-int vboot_platform_is_resuming(void);
-
-/* ============================= VERSTAGE ================================== */
-/*
- * Main logic for verified boot. verstage_main() is just the core vboot logic.
- * If the verstage is a separate stage, it should be entered via main().
- */
-void verstage_main(void);
-void verstage_mainboard_init(void);
-
-/* Check boot modes */
-#if IS_ENABLED(CONFIG_VBOOT)
-int vboot_developer_mode_enabled(void);
-int vboot_recovery_mode_enabled(void);
-int vboot_recovery_mode_memory_retrain(void);
-#else /* !CONFIG_VBOOT */
-static inline int vboot_developer_mode_enabled(void) { return 0; }
-static inline int vboot_recovery_mode_enabled(void) { return 0; }
-static inline int vboot_recovery_mode_memory_retrain(void) { return 0; }
-#endif
-
-#endif /* __VBOOT_VBOOT_COMMON_H__ */
diff --git a/src/vboot/vboot_handoff.c b/src/vboot/vboot_handoff.c
deleted file mode 100644
index 974fe78ec3..0000000000
--- a/src/vboot/vboot_handoff.c
+++ /dev/null
@@ -1,190 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright (C) 2013 Google, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-/* This needs to be pulled in first so that the handoff code below and
- * peek into the vb2 data structures. Additionally, vboot doesn't currently
- * include what it uses in its own headers. Provide the types it's after.
- * TODO: fix this necessity. */
-#define NEED_VB20_INTERNALS
-#include <stddef.h>
-#include <stdint.h>
-#include <vb2_api.h>
-
-#include <arch/stages.h>
-#include <assert.h>
-#include <bootmode.h>
-#include <string.h>
-#include <cbfs.h>
-#include <cbmem.h>
-#include <console/console.h>
-#include <console/vtxprintf.h>
-#include <fmap.h>
-#include <stdlib.h>
-#include <timestamp.h>
-#include <vboot_struct.h>
-#include <vboot/vbnv.h>
-#include <vboot/misc.h>
-
-/**
- * Sets vboot_handoff based on the information in vb2_shared_data
- */
-static void fill_vboot_handoff(struct vboot_handoff *vboot_handoff,
- struct vb2_shared_data *vb2_sd)
-{
- VbSharedDataHeader *vb_sd =
- (VbSharedDataHeader *)vboot_handoff->shared_data;
- uint32_t *oflags = &vboot_handoff->init_params.out_flags;
-
- vb_sd->flags |= VBSD_BOOT_FIRMWARE_VBOOT2;
-
- vboot_handoff->selected_firmware = vb2_sd->fw_slot;
-
- vb_sd->firmware_index = vb2_sd->fw_slot;
-
- vb_sd->magic = VB_SHARED_DATA_MAGIC;
- vb_sd->struct_version = VB_SHARED_DATA_VERSION;
- vb_sd->struct_size = sizeof(VbSharedDataHeader);
- vb_sd->data_size = VB_SHARED_DATA_MIN_SIZE;
- vb_sd->data_used = sizeof(VbSharedDataHeader);
- vb_sd->fw_version_tpm = vb2_sd->fw_version_secdata;
-
- if (get_write_protect_state())
- vb_sd->flags |= VBSD_BOOT_FIRMWARE_WP_ENABLED;
-
- if (vb2_sd->recovery_reason) {
- vb_sd->firmware_index = 0xFF;
- if (vb2_sd->flags & VB2_SD_FLAG_MANUAL_RECOVERY)
- vb_sd->flags |= VBSD_BOOT_REC_SWITCH_ON;
- *oflags |= VB_INIT_OUT_ENABLE_RECOVERY;
- *oflags |= VB_INIT_OUT_CLEAR_RAM;
- *oflags |= VB_INIT_OUT_ENABLE_DISPLAY;
- *oflags |= VB_INIT_OUT_ENABLE_USB_STORAGE;
- }
- if (vb2_sd->flags & VB2_SD_DEV_MODE_ENABLED) {
- *oflags |= VB_INIT_OUT_ENABLE_DEVELOPER;
- *oflags |= VB_INIT_OUT_CLEAR_RAM;
- *oflags |= VB_INIT_OUT_ENABLE_DISPLAY;
- *oflags |= VB_INIT_OUT_ENABLE_USB_STORAGE;
- vb_sd->flags |= VBSD_BOOT_DEV_SWITCH_ON;
- vb_sd->flags |= VBSD_LF_DEV_SWITCH_ON;
- }
- /* TODO: Set these in depthcharge */
- if (!IS_ENABLED(CONFIG_VBOOT_PHYSICAL_DEV_SWITCH))
- vb_sd->flags |= VBSD_HONOR_VIRT_DEV_SWITCH;
- if (IS_ENABLED(CONFIG_VBOOT_EC_SOFTWARE_SYNC)) {
- vb_sd->flags |= VBSD_EC_SOFTWARE_SYNC;
- if (IS_ENABLED(CONFIG_VBOOT_EC_SLOW_UPDATE))
- vb_sd->flags |= VBSD_EC_SLOW_UPDATE;
- if (IS_ENABLED(CONFIG_VBOOT_EC_EFS))
- vb_sd->flags |= VBSD_EC_EFS;
- }
- if (!IS_ENABLED(CONFIG_VBOOT_PHYSICAL_REC_SWITCH))
- vb_sd->flags |= VBSD_BOOT_REC_SWITCH_VIRTUAL;
- if (IS_ENABLED(CONFIG_VBOOT_OPROM_MATTERS)) {
- vb_sd->flags |= VBSD_OPROM_MATTERS;
- /*
- * Inform vboot if the display was enabled by dev/rec
- * mode or was requested by vboot kernel phase.
- */
- if ((*oflags & VB_INIT_OUT_ENABLE_DISPLAY) ||
- vboot_wants_oprom()) {
- vb_sd->flags |= VBSD_OPROM_LOADED;
- *oflags |= VB_INIT_OUT_ENABLE_DISPLAY;
- }
- }
-
- /* In vboot1, VBSD_FWB_TRIED is
- * set only if B is booted as explicitly requested. Therefore, if B is
- * booted because A was found bad, the flag should not be set. It's
- * better not to touch it if we can only ambiguously control it. */
- /* if (vb2_sd->fw_slot)
- vb_sd->flags |= VBSD_FWB_TRIED; */
-
- /* copy kernel subkey if it's found */
- if (vb2_sd->workbuf_preamble_size) {
- struct vb2_fw_preamble *fp;
- uintptr_t dst, src;
- printk(BIOS_INFO, "Copying FW preamble\n");
- fp = (struct vb2_fw_preamble *)((uintptr_t)vb2_sd +
- vb2_sd->workbuf_preamble_offset);
- src = (uintptr_t)&fp->kernel_subkey +
- fp->kernel_subkey.key_offset;
- dst = (uintptr_t)vb_sd + sizeof(VbSharedDataHeader);
- assert(dst + fp->kernel_subkey.key_size <=
- (uintptr_t)vboot_handoff + sizeof(*vboot_handoff));
- memcpy((void *)dst, (void *)src,
- fp->kernel_subkey.key_size);
- vb_sd->data_used += fp->kernel_subkey.key_size;
- vb_sd->kernel_subkey.key_offset =
- dst - (uintptr_t)&vb_sd->kernel_subkey;
- vb_sd->kernel_subkey.key_size = fp->kernel_subkey.key_size;
- vb_sd->kernel_subkey.algorithm = fp->kernel_subkey.algorithm;
- vb_sd->kernel_subkey.key_version =
- fp->kernel_subkey.key_version;
- }
-
- vb_sd->recovery_reason = vb2_sd->recovery_reason;
-}
-
-void vboot_fill_handoff(void)
-{
- struct vboot_handoff *vh;
- struct vb2_shared_data *sd;
-
- sd = vb2_get_shared_data();
- sd->workbuf_hash_offset = 0;
- sd->workbuf_hash_size = 0;
-
- printk(BIOS_INFO, "creating vboot_handoff structure\n");
- vh = cbmem_add(CBMEM_ID_VBOOT_HANDOFF, sizeof(*vh));
- if (vh == NULL)
- /* we don't need to failover gracefully here because this
- * shouldn't happen with the image that has passed QA. */
- die("failed to allocate vboot_handoff structure\n");
-
- memset(vh, 0, sizeof(*vh));
-
- /* needed until we finish transtion to vboot2 for kernel verification */
- fill_vboot_handoff(vh, sd);
-
-
- /* Log the recovery mode switches if required, before clearing them. */
- log_recovery_mode_switch();
-
- /*
- * The recovery mode switch is cleared (typically backed by EC) here
- * to allow multiple queries to get_recovery_mode_switch() and have
- * them return consistent results during the verified boot path as well
- * as dram initialization. x86 systems ignore the saved dram settings
- * in the recovery path in order to start from a clean slate. Therefore
- * clear the state here since this function is called when memory
- * is known to be up.
- */
- clear_recovery_mode_switch();
-}
-
-/*
- * For platforms that employ VBOOT_STARTS_IN_ROMSTAGE, the vboot
- * verification doesn't happen until after cbmem is brought online.
- * Therefore, the vboot results would not be initialized so don't
- * automatically add results when cbmem comes online.
- */
-#if !IS_ENABLED(CONFIG_VBOOT_STARTS_IN_ROMSTAGE)
-static void vb2_fill_handoff_cbmem(int unused)
-{
- vboot_fill_handoff();
-}
-ROMSTAGE_CBMEM_INIT_HOOK(vb2_fill_handoff_cbmem)
-#endif
diff --git a/src/vboot/vboot_loader.c b/src/vboot/vboot_loader.c
deleted file mode 100644
index 6a7e284867..0000000000
--- a/src/vboot/vboot_loader.c
+++ /dev/null
@@ -1,158 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2015 Google, Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <arch/early_variables.h>
-#include <cbfs.h>
-#include <cbmem.h>
-#include <console/console.h>
-#include <ec/google/chromeec/ec.h>
-#include <rmodule.h>
-#include <rules.h>
-#include <string.h>
-#include <vboot/misc.h>
-#include <vboot/symbols.h>
-#include <vboot/vboot_common.h>
-
-/* Ensure vboot configuration is valid: */
-_Static_assert(IS_ENABLED(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK) +
- IS_ENABLED(CONFIG_VBOOT_STARTS_IN_ROMSTAGE) == 1,
- "vboot must either start in bootblock or romstage (not both!)");
-_Static_assert(!IS_ENABLED(CONFIG_VBOOT_SEPARATE_VERSTAGE) ||
- IS_ENABLED(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK),
- "stand-alone verstage must start in (i.e. after) bootblock");
-_Static_assert(!IS_ENABLED(CONFIG_VBOOT_RETURN_FROM_VERSTAGE) ||
- IS_ENABLED(CONFIG_VBOOT_SEPARATE_VERSTAGE),
- "return from verstage only makes sense for separate verstages");
-
-/* The stage loading code is compiled and entered from multiple stages. The
- * helper functions below attempt to provide more clarity on when certain
- * code should be called. */
-
-static int verification_should_run(void)
-{
- if (IS_ENABLED(CONFIG_VBOOT_SEPARATE_VERSTAGE))
- return ENV_VERSTAGE;
- else if (IS_ENABLED(CONFIG_VBOOT_STARTS_IN_ROMSTAGE))
- return ENV_ROMSTAGE;
- else if (IS_ENABLED(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK))
- return ENV_BOOTBLOCK;
- else
- die("impossible!");
-}
-
-static int verstage_should_load(void)
-{
- if (IS_ENABLED(CONFIG_VBOOT_SEPARATE_VERSTAGE))
- return ENV_BOOTBLOCK;
- else
- return 0;
-}
-
-static int vboot_executed CAR_GLOBAL;
-
-int vb2_logic_executed(void)
-{
- /* If we are in a stage that would load the verstage or execute the
- vboot logic directly, we store the answer in a global. */
- if (verstage_should_load() || verification_should_run())
- return car_get_var(vboot_executed);
-
- if (IS_ENABLED(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK)) {
- /* All other stages are "after the bootblock" */
- return !ENV_BOOTBLOCK;
- } else if (IS_ENABLED(CONFIG_VBOOT_STARTS_IN_ROMSTAGE)) {
- /* Post-RAM stages are "after the romstage" */
-#ifdef __PRE_RAM__
- return 0;
-#else
- return 1;
-#endif
- } else {
- die("impossible!");
- }
-}
-
-static void vboot_prepare(void)
-{
- if (verification_should_run()) {
- /* Note: this path is not used for VBOOT_RETURN_FROM_VERSTAGE */
- verstage_main();
- car_set_var(vboot_executed, 1);
- vb2_save_recovery_reason_vbnv();
- } else if (verstage_should_load()) {
- struct cbfsf file;
- struct prog verstage =
- PROG_INIT(PROG_VERSTAGE,
- CONFIG_CBFS_PREFIX "/verstage");
-
- printk(BIOS_DEBUG, "VBOOT: Loading verstage.\n");
-
- /* load verstage from RO */
- if (cbfs_boot_locate(&file, prog_name(&verstage), NULL))
- die("failed to load verstage");
-
- cbfs_file_data(prog_rdev(&verstage), &file);
-
- if (cbfs_prog_stage_load(&verstage))
- die("failed to load verstage");
-
- /* verify and select a slot */
- prog_run(&verstage);
-
- /* This is not actually possible to hit this condition at
- * runtime, but this provides a hint to the compiler for dead
- * code elimination below. */
- if (!IS_ENABLED(CONFIG_VBOOT_RETURN_FROM_VERSTAGE))
- return;
-
- car_set_var(vboot_executed, 1);
- }
-
- /*
- * Fill in vboot cbmem objects before moving to ramstage so all
- * downstream users have access to vboot results. This path only
- * applies to platforms employing VBOOT_STARTS_IN_ROMSTAGE because
- * cbmem comes online prior to vboot verification taking place. For
- * other platforms the vboot cbmem objects are initialized when
- * cbmem comes online.
- */
- if (ENV_ROMSTAGE && IS_ENABLED(CONFIG_VBOOT_STARTS_IN_ROMSTAGE)) {
- vb2_store_selected_region();
- vboot_fill_handoff();
- }
-}
-
-static int vboot_locate(struct cbfs_props *props)
-{
- struct region selected_region;
-
- /* Don't honor vboot results until the vboot logic has run. */
- if (!vb2_logic_executed())
- return -1;
-
- if (vb2_get_selected_region(&selected_region))
- return -1;
-
- props->offset = region_offset(&selected_region);
- props->size = region_sz(&selected_region);
-
- return 0;
-}
-
-const struct cbfs_locator vboot_locator = {
- .name = "VBOOT",
- .prepare = vboot_prepare,
- .locate = vboot_locate,
-};
diff --git a/src/vboot/vboot_logic.c b/src/vboot/vboot_logic.c
deleted file mode 100644
index d06faa740a..0000000000
--- a/src/vboot/vboot_logic.c
+++ /dev/null
@@ -1,438 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2014 Google Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <antirollback.h>
-#include <arch/exception.h>
-#include <assert.h>
-#include <bootmode.h>
-#include <console/console.h>
-#include <console/vtxprintf.h>
-#include <delay.h>
-#include <string.h>
-#include <timestamp.h>
-#include <vb2_api.h>
-#include <vboot/misc.h>
-#include <vboot/vbnv.h>
-
-/* The max hash size to expect is for SHA512. */
-#define VBOOT_MAX_HASH_SIZE VB2_SHA512_DIGEST_SIZE
-
-#define TODO_BLOCK_SIZE 1024
-
-static int is_slot_a(struct vb2_context *ctx)
-{
- return !(ctx->flags & VB2_CONTEXT_FW_SLOT_B);
-}
-
-/* exports */
-
-void vb2ex_printf(const char *func, const char *fmt, ...)
-{
- va_list args;
-
- if (func)
- printk(BIOS_INFO, "VB2:%s() ", func);
-
- va_start(args, fmt);
- do_printk_va_list(BIOS_INFO, fmt, args);
- va_end(args);
-
- return;
-}
-
-int vb2ex_tpm_clear_owner(struct vb2_context *ctx)
-{
- uint32_t rv;
- printk(BIOS_INFO, "Clearing TPM owner\n");
- rv = tpm_clear_and_reenable();
- if (rv)
- return VB2_ERROR_EX_TPM_CLEAR_OWNER;
- return VB2_SUCCESS;
-}
-
-int vb2ex_read_resource(struct vb2_context *ctx,
- enum vb2_resource_index index,
- uint32_t offset,
- void *buf,
- uint32_t size)
-{
- struct region_device rdev;
- const char *name;
-
- switch (index) {
- case VB2_RES_GBB:
- name = "GBB";
- break;
- case VB2_RES_FW_VBLOCK:
- if (is_slot_a(ctx))
- name = "VBLOCK_A";
- else
- name = "VBLOCK_B";
- break;
- default:
- return VB2_ERROR_EX_READ_RESOURCE_INDEX;
- }
-
- if (vboot_named_region_device(name, &rdev))
- return VB2_ERROR_EX_READ_RESOURCE_SIZE;
-
- if (rdev_readat(&rdev, buf, offset, size) != size)
- return VB2_ERROR_EX_READ_RESOURCE_SIZE;
-
- return VB2_SUCCESS;
-}
-
-/* No-op stubs that can be overridden by SoCs with hardware crypto support. */
-__attribute__((weak))
-int vb2ex_hwcrypto_digest_init(enum vb2_hash_algorithm hash_alg,
- uint32_t data_size)
-{
- return VB2_ERROR_EX_HWCRYPTO_UNSUPPORTED;
-}
-
-__attribute__((weak))
-int vb2ex_hwcrypto_digest_extend(const uint8_t *buf, uint32_t size)
-{
- BUG(); /* Should never get called if init() returned an error. */
- return VB2_ERROR_UNKNOWN;
-}
-
-__attribute__((weak))
-int vb2ex_hwcrypto_digest_finalize(uint8_t *digest, uint32_t digest_size)
-{
- BUG(); /* Should never get called if init() returned an error. */
- return VB2_ERROR_UNKNOWN;
-}
-
-static int handle_digest_result(void *slot_hash, size_t slot_hash_sz)
-{
- int is_resume;
-
- /*
- * Chrome EC is the only support for vboot_save_hash() &
- * vboot_retrieve_hash(), if Chrome EC is not enabled then return.
- */
- if (!IS_ENABLED(CONFIG_EC_GOOGLE_CHROMEEC))
- return 0;
-
- /*
- * Nothing to do since resuming on the platform doesn't require
- * vboot verification again.
- */
- if (!IS_ENABLED(CONFIG_RESUME_PATH_SAME_AS_BOOT))
- return 0;
-
- /*
- * Assume that if vboot doesn't start in bootblock verified
- * RW memory init code is not employed. i.e. memory init code
- * lives in RO CBFS.
- */
- if (!IS_ENABLED(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK))
- return 0;
-
- is_resume = vboot_platform_is_resuming();
-
- if (is_resume > 0) {
- uint8_t saved_hash[VBOOT_MAX_HASH_SIZE];
- const size_t saved_hash_sz = sizeof(saved_hash);
-
- assert(slot_hash_sz == saved_hash_sz);
-
- printk(BIOS_DEBUG, "Platform is resuming.\n");
-
- if (vboot_retrieve_hash(saved_hash, saved_hash_sz)) {
- printk(BIOS_ERR, "Couldn't retrieve saved hash.\n");
- return -1;
- }
-
- if (memcmp(saved_hash, slot_hash, slot_hash_sz)) {
- printk(BIOS_ERR, "Hash mismatch on resume.\n");
- return -1;
- }
- } else if (is_resume < 0)
- printk(BIOS_ERR, "Unable to determine if platform resuming.\n");
-
- printk(BIOS_DEBUG, "Saving vboot hash.\n");
-
- /* Always save the hash for the current boot. */
- if (vboot_save_hash(slot_hash, slot_hash_sz)) {
- printk(BIOS_ERR, "Error saving vboot hash.\n");
- /* Though this is an error don't report it up since it could
- * lead to a reboot loop. The consequence of this is that
- * we will most likely fail resuming because of EC issues or
- * the hash digest not matching. */
- return 0;
- }
-
- return 0;
-}
-
-static int hash_body(struct vb2_context *ctx, struct region_device *fw_main)
-{
- uint64_t load_ts;
- uint32_t expected_size;
- uint8_t block[TODO_BLOCK_SIZE];
- uint8_t hash_digest[VBOOT_MAX_HASH_SIZE];
- const size_t hash_digest_sz = sizeof(hash_digest);
- size_t block_size = sizeof(block);
- size_t offset;
- int rv;
-
- /* Clear the full digest so that any hash digests less than the
- * max have trailing zeros. */
- memset(hash_digest, 0, hash_digest_sz);
-
- /*
- * Since loading the firmware and calculating its hash is intertwined,
- * we use this little trick to measure them separately and pretend it
- * was first loaded and then hashed in one piece with the timestamps.
- * (This split won't make sense with memory-mapped media like on x86.)
- */
- load_ts = timestamp_get();
- timestamp_add(TS_START_HASH_BODY, load_ts);
-
- expected_size = region_device_sz(fw_main);
- offset = 0;
-
- /* Start the body hash */
- rv = vb2api_init_hash(ctx, VB2_HASH_TAG_FW_BODY, &expected_size);
- if (rv)
- return rv;
-
- /*
- * Honor vboot's RW slot size. The expected size is pulled out of
- * the preamble and obtained through vb2api_init_hash() above. By
- * creating sub region the RW slot portion of the boot media is
- * limited.
- */
- if (rdev_chain(fw_main, fw_main, 0, expected_size)) {
- printk(BIOS_ERR, "Unable to restrict CBFS size.\n");
- return VB2_ERROR_UNKNOWN;
- }
-
- /* Extend over the body */
- while (expected_size) {
- uint64_t temp_ts;
- if (block_size > expected_size)
- block_size = expected_size;
-
- temp_ts = timestamp_get();
- if (rdev_readat(fw_main, block, offset, block_size) < 0)
- return VB2_ERROR_UNKNOWN;
- load_ts += timestamp_get() - temp_ts;
-
- rv = vb2api_extend_hash(ctx, block, block_size);
- if (rv)
- return rv;
-
- expected_size -= block_size;
- offset += block_size;
- }
-
- timestamp_add(TS_DONE_LOADING, load_ts);
- timestamp_add_now(TS_DONE_HASHING);
-
- /* Check the result (with RSA signature verification) */
- rv = vb2api_check_hash_get_digest(ctx, hash_digest, hash_digest_sz);
- if (rv)
- return rv;
-
- timestamp_add_now(TS_END_HASH_BODY);
-
- if (handle_digest_result(hash_digest, hash_digest_sz))
- return VB2_ERROR_UNKNOWN;
-
- return VB2_SUCCESS;
-}
-
-static int locate_firmware(struct vb2_context *ctx,
- struct region_device *fw_main)
-{
- const char *name;
-
- if (is_slot_a(ctx))
- name = "FW_MAIN_A";
- else
- name = "FW_MAIN_B";
-
- return vboot_named_region_device(name, fw_main);
-}
-
-/**
- * Save non-volatile and/or secure data if needed.
- */
-static void save_if_needed(struct vb2_context *ctx)
-{
- if (ctx->flags & VB2_CONTEXT_NVDATA_CHANGED) {
- printk(BIOS_INFO, "Saving nvdata\n");
- save_vbnv(ctx->nvdata);
- ctx->flags &= ~VB2_CONTEXT_NVDATA_CHANGED;
- }
- if (ctx->flags & VB2_CONTEXT_SECDATA_CHANGED) {
- printk(BIOS_INFO, "Saving secdata\n");
- antirollback_write_space_firmware(ctx);
- ctx->flags &= ~VB2_CONTEXT_SECDATA_CHANGED;
- }
-}
-
-static uint32_t extend_pcrs(struct vb2_context *ctx)
-{
- return tpm_extend_pcr(ctx, 0, BOOT_MODE_PCR) ||
- tpm_extend_pcr(ctx, 1, HWID_DIGEST_PCR);
-}
-
-/**
- * Verify and select the firmware in the RW image
- *
- * TODO: Avoid loading a stage twice (once in hash_body & again in load_stage).
- * when per-stage verification is ready.
- */
-void verstage_main(void)
-{
- struct vb2_context ctx;
- struct region_device fw_main;
- int rv;
-
- timestamp_add_now(TS_START_VBOOT);
-
- /* Set up context and work buffer */
- vb2_init_work_context(&ctx);
-
- /* Initialize and read nvdata from non-volatile storage. */
- vbnv_init(ctx.nvdata);
-
- /* Set S3 resume flag if vboot should behave differently when selecting
- * which slot to boot. This is only relevant to vboot if the platform
- * does verification of memory init and thus must ensure it resumes with
- * the same slot that it booted from. */
- if (IS_ENABLED(CONFIG_RESUME_PATH_SAME_AS_BOOT) &&
- IS_ENABLED(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK) &&
- vboot_platform_is_resuming())
- ctx.flags |= VB2_CONTEXT_S3_RESUME;
-
- /* Read secdata from TPM. Initialize TPM if secdata not found. We don't
- * check the return value here because vb2api_fw_phase1 will catch
- * invalid secdata and tell us what to do (=reboot). */
- timestamp_add_now(TS_START_TPMINIT);
- antirollback_read_space_firmware(&ctx);
- timestamp_add_now(TS_END_TPMINIT);
-
- if (IS_ENABLED(CONFIG_VBOOT_PHYSICAL_DEV_SWITCH) &&
- get_developer_mode_switch())
- ctx.flags |= VB2_CONTEXT_FORCE_DEVELOPER_MODE;
-
- if (get_recovery_mode_switch()) {
- ctx.flags |= VB2_CONTEXT_FORCE_RECOVERY_MODE;
- if (IS_ENABLED(CONFIG_VBOOT_DISABLE_DEV_ON_RECOVERY))
- ctx.flags |= VB2_DISABLE_DEVELOPER_MODE;
- }
-
- if (IS_ENABLED(CONFIG_VBOOT_WIPEOUT_SUPPORTED) &&
- get_wipeout_mode_switch())
- ctx.flags |= VB2_CONTEXT_FORCE_WIPEOUT_MODE;
-
- if (IS_ENABLED(CONFIG_VBOOT_LID_SWITCH) && !get_lid_switch())
- ctx.flags |= VB2_CONTEXT_NOFAIL_BOOT;
-
- /* Do early init (set up secdata and NVRAM, load GBB) */
- printk(BIOS_INFO, "Phase 1\n");
- rv = vb2api_fw_phase1(&ctx);
-
- if (rv) {
- /*
- * If vb2api_fw_phase1 fails, check for return value.
- * If it is set to VB2_ERROR_API_PHASE1_RECOVERY, then continue
- * into recovery mode.
- * For any other error code, save context if needed and reboot.
- */
- if (rv == VB2_ERROR_API_PHASE1_RECOVERY) {
- printk(BIOS_INFO, "Recovery requested (%x)\n", rv);
- save_if_needed(&ctx);
- extend_pcrs(&ctx); /* ignore failures */
- timestamp_add_now(TS_END_VBOOT);
- return;
- }
-
- printk(BIOS_INFO, "Reboot reqested (%x)\n", rv);
- save_if_needed(&ctx);
- vboot_reboot();
- }
-
- /* Determine which firmware slot to boot (based on NVRAM) */
- printk(BIOS_INFO, "Phase 2\n");
- rv = vb2api_fw_phase2(&ctx);
- if (rv) {
- printk(BIOS_INFO, "Reboot requested (%x)\n", rv);
- save_if_needed(&ctx);
- vboot_reboot();
- }
-
- /* Try that slot (verify its keyblock and preamble) */
- printk(BIOS_INFO, "Phase 3\n");
- timestamp_add_now(TS_START_VERIFY_SLOT);
- rv = vb2api_fw_phase3(&ctx);
- timestamp_add_now(TS_END_VERIFY_SLOT);
- if (rv) {
- printk(BIOS_INFO, "Reboot requested (%x)\n", rv);
- save_if_needed(&ctx);
- vboot_reboot();
- }
-
- printk(BIOS_INFO, "Phase 4\n");
- rv = locate_firmware(&ctx, &fw_main);
- if (rv)
- die("Failed to read FMAP to locate firmware");
-
- rv = hash_body(&ctx, &fw_main);
- save_if_needed(&ctx);
- if (rv) {
- printk(BIOS_INFO, "Reboot requested (%x)\n", rv);
- vboot_reboot();
- }
-
- rv = extend_pcrs(&ctx);
- if (rv) {
- printk(BIOS_WARNING, "Failed to extend TPM PCRs (%#x)\n", rv);
- vb2api_fail(&ctx, VB2_RECOVERY_RO_TPM_U_ERROR, rv);
- save_if_needed(&ctx);
- vboot_reboot();
- }
-
- /* Lock TPM */
- rv = antirollback_lock_space_firmware();
- if (rv) {
- printk(BIOS_INFO, "Failed to lock TPM (%x)\n", rv);
- vb2api_fail(&ctx, VB2_RECOVERY_RO_TPM_L_ERROR, 0);
- save_if_needed(&ctx);
- vboot_reboot();
- }
-
- /* Lock rec hash space if available. */
- if (IS_ENABLED(CONFIG_VBOOT_HAS_REC_HASH_SPACE)) {
- rv = antirollback_lock_space_rec_hash();
- if (rv) {
- printk(BIOS_INFO, "Failed to lock rec hash space(%x)\n",
- rv);
- vb2api_fail(&ctx, VB2_RECOVERY_RO_TPM_REC_HASH_L_ERROR,
- 0);
- save_if_needed(&ctx);
- vboot_reboot();
- }
- }
-
- printk(BIOS_INFO, "Slot %c is selected\n", is_slot_a(&ctx) ? 'A' : 'B');
- vb2_set_selected_region(region_device_region(&fw_main));
- timestamp_add_now(TS_END_VBOOT);
-}
diff --git a/src/vboot/verstage.c b/src/vboot/verstage.c
deleted file mode 100644
index aca4ab328d..0000000000
--- a/src/vboot/verstage.c
+++ /dev/null
@@ -1,39 +0,0 @@
-/*
- * This file is part of the coreboot project.
- *
- * Copyright 2015 Google Inc.
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; version 2 of the License.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- */
-
-#include <arch/exception.h>
-#include <arch/hlt.h>
-#include <console/console.h>
-#include <program_loading.h>
-#include <vboot/vboot_common.h>
-
-void __attribute__((weak)) verstage_mainboard_init(void)
-{
- /* Default empty implementation. */
-}
-
-void main(void)
-{
- console_init();
- exception_init();
- verstage_mainboard_init();
-
- if (IS_ENABLED(CONFIG_VBOOT_RETURN_FROM_VERSTAGE)) {
- verstage_main();
- } else {
- run_romstage();
- hlt();
- }
-}