vboot: Separate vboot from chromeos

VBOOT_VERIFY_FIRMWARE should be independent of CHROMEOS. This allows use
of verified boot library without having to stick to CHROMEOS.

BUG=chrome-os-partner:55639

Change-Id: Ia2c328712caedd230ab295b8a613e3c1ed1532d9
Signed-off-by: Furquan Shaikh <furquan@google.com>
Reviewed-on: https://review.coreboot.org/15867
Tested-by: build bot (Jenkins)
Reviewed-by: Duncan Laurie <dlaurie@chromium.org>

11 files changed, 0 insertions, 1855 deletions

diff --git a/src/vendorcode/google/chromeos/vboot2/Kconfig b/src/vendorcode/google/chromeos/vboot2/Kconfig
deleted file mode 100644
index 5aaf932042..0000000000
--- a/src/vendorcode/google/chromeos/vboot2/Kconfig
+++ /dev/null
@@ -1,89 +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.
-##
-
-config VBOOT_STARTS_IN_BOOTBLOCK
-	bool "Vboot starts verifying in bootblock"
-	default n
-	depends on VBOOT_VERIFY_FIRMWARE
-	help
-	  Firmware verification happens during or at the end of bootblock.
-
-config VBOOT_STARTS_IN_ROMSTAGE
-	bool "Vboot starts verifying in romstage"
-	default n
-	depends on VBOOT_VERIFY_FIRMWARE && !VBOOT_STARTS_IN_BOOTBLOCK
-	help
-	  Firmware verification happens during or at the end of romstage.
-
-config VBOOT2_MOCK_SECDATA
-	bool "Mock secdata for firmware verification"
-	default n
-	depends on VBOOT_VERIFY_FIRMWARE
-	help
-	  Enabling VBOOT2_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 "Disable dev mode on recovery requests"
-	default n
-	depends on VBOOT_VERIFY_FIRMWARE
-	help
-	  When this option is enabled, the Chrome OS device leaves the
-	  developer mode as soon as recovery request is detected. This is
-	  handy on embedded devices with limited input capabilities.
-
-config SEPARATE_VERSTAGE
-	bool "Vboot verification is built into a separate stage"
-	default n
-	depends on VBOOT_VERIFY_FIRMWARE
-
-config RETURN_FROM_VERSTAGE
-	bool "The separate verification stage returns to its caller"
-	default n
-	depends on 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 CHIPSET_PROVIDES_VERSTAGE_MAIN_SYMBOL
-	bool "The chipset provides the main() entry point for verstage"
-	default n
-	depends on SEPARATE_VERSTAGE
-	help
-	  The chipset code provides their own main() entry point.
-
-config VBOOT_DYNAMIC_WORK_BUFFER
-	bool "Vboot's work buffer is dynamically allocated."
-	default y if ARCH_ROMSTAGE_X86_32 && !SEPARATE_VERSTAGE
-	default n
-	depends on VBOOT_VERIFY_FIRMWARE
-	help
-	  This option is used when there isn't enough pre-main memory
-	  ram to allocate the vboot work buffer. That means vboot verification
-	  is after memory init and requires main memory to back the work
-	  buffer.
-
-config VBOOT_SAVE_RECOVERY_REASON_ON_REBOOT
-	bool
-	default n
-	depends on VBOOT_VERIFY_FIRMWARE
-	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.
diff --git a/src/vendorcode/google/chromeos/vboot2/Makefile.inc b/src/vendorcode/google/chromeos/vboot2/Makefile.inc
deleted file mode 100644
index bf13fd6103..0000000000
--- a/src/vendorcode/google/chromeos/vboot2/Makefile.inc
+++ /dev/null
@@ -1,118 +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.
-##
-
-libverstage-generic-ccopts += -D__PRE_RAM__ -D__VERSTAGE__
-verstage-generic-ccopts += -D__PRE_RAM__ -D__VERSTAGE__
-
-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 += recovery.c
-romstage-y += recovery.c
-ramstage-y += recovery.c
-verstage-y += recovery.c
-postcar-y += recovery.c
-
-bootblock-y += common.c
-libverstage-y += vboot_logic.c
-verstage-y += common.c
-verstage-y += verstage.c
-ifeq (${CONFIG_VBOOT2_MOCK_SECDATA},y)
-libverstage-y += secdata_mock.c
-else
-libverstage-y += antirollback.c
-endif
-romstage-y += vboot_handoff.c common.c
-
-ramstage-y += common.c
-postcar-y += common.c
-
-ifeq ($(CONFIG_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_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_libverstage))))
-VBOOT_CFLAGS += $(CFLAGS_libverstage)
-VBOOT_CFLAGS += $(libverstage-c-ccopts)
-VBOOT_CFLAGS += -I$(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"
-	$(Q)FIRMWARE_ARCH=$(VB_FIRMWARE_ARCH) \
-	CC="$(CC_verstage)" \
-	CFLAGS="$(VBOOT_CFLAGS)" VBOOT2="y" \
-	$(MAKE) -C $(VBOOT_SOURCE) \
-		BUILD=$(abspath $(dir $(VB2_LIB))) \
-		V=$(V) \
-		fwlib20
-
-libverstage-srcs += $(VB2_LIB)
-
-ifeq ($(CONFIG_SEPARATE_VERSTAGE),y)
-cbfs-files-$(CONFIG_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
-ifeq ($(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK),y)
-bootblock-srcs += $(objgenerated)/libverstage.a
-else
-romstage-srcs += $(objgenerated)/libverstage.a
-endif
-endif # CONFIG_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 \
-		,$(1)),COREBOOT,COREBOOT FW_MAIN_A FW_MAIN_B)))
diff --git a/src/vendorcode/google/chromeos/vboot2/antirollback.c b/src/vendorcode/google/chromeos/vboot2/antirollback.c
deleted file mode 100644
index a51e5d6d55..0000000000
--- a/src/vendorcode/google/chromeos/vboot2/antirollback.c
+++ /dev/null
@@ -1,436 +0,0 @@
-/* Copyright (c) 2013 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- *
- * 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 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,
-};
-
-#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)
-{
-	RETURN_ON_FAILURE(tlcl_define_space(KERNEL_NV_INDEX,
-					    sizeof(secdata_kernel)));
-	RETURN_ON_FAILURE(safe_write(KERNEL_NV_INDEX, kernel_blob,
-				     sizeof(secdata_kernel)));
-	return TPM_SUCCESS;
-}
-
-static uint32_t _factory_initialize_tpm(struct vb2_context *ctx)
-{
-	RETURN_ON_FAILURE(tlcl_force_clear());
-	RETURN_ON_FAILURE(set_firmware_space(ctx->secdata));
-	RETURN_ON_FAILURE(set_kernel_space(secdata_kernel));
-	return TPM_SUCCESS;
-}
-
-uint32_t tpm_clear_and_reenable(void)
-{
-	VBDEBUG("TPM: Clear and re-enable\n");
-	return TPM_SUCCESS;
-}
-
-uint32_t antirollback_lock_space_firmware(void)
-{
-	return tlcl_lock_nv_write(FIRMWARE_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 _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 the backup space. No need to initialize it, though. */
-	RETURN_ON_FAILURE(safe_define_space(BACKUP_NV_INDEX,
-					    TPM_NV_PER_PPWRITE,
-					    VB2_NVDATA_SIZE));
-
-	/* 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));
-	return TPM_SUCCESS;
-}
-
-uint32_t antirollback_lock_space_firmware(void)
-{
-	return tlcl_set_global_lock();
-}
-#endif
-
-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;
-	}
-
-#ifdef TEGRA_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", result);
-		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());
-#endif
-
-	/*
-	 * 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)
-{
-	return write_secdata(FIRMWARE_NV_INDEX, ctx->secdata, VB2_SECDATA_SIZE);
-}
diff --git a/src/vendorcode/google/chromeos/vboot2/common.c b/src/vendorcode/google/chromeos/vboot2/common.c
deleted file mode 100644
index 58ea95d219..0000000000
--- a/src/vendorcode/google/chromeos/vboot2/common.c
+++ /dev/null
@@ -1,183 +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 "../chromeos.h"
-#include "../symbols.h"
-#include "../vboot_common.h"
-#include "misc.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_DYNAMIC_WORK_BUFFER))
-		/* 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_DYNAMIC_WORK_BUFFER))
-		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_DYNAMIC_WORK_BUFFER, 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_DYNAMIC_WORK_BUFFER)
-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/vendorcode/google/chromeos/vboot2/misc.h b/src/vendorcode/google/chromeos/vboot2/misc.h
deleted file mode 100644
index 9b771a24e3..0000000000
--- a/src/vendorcode/google/chromeos/vboot2/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 __CHROMEOS_VBOOT2_MISC_H__
-#define __CHROMEOS_VBOOT2_MISC_H__
-
-#include "../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 /* __CHROMEOS_VBOOT2_MISC_H__ */
diff --git a/src/vendorcode/google/chromeos/vboot2/recovery.c b/src/vendorcode/google/chromeos/vboot2/recovery.c
deleted file mode 100644
index 94a8cc3f37..0000000000
--- a/src/vendorcode/google/chromeos/vboot2/recovery.c
+++ /dev/null
@@ -1,154 +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 <bootstate.h>
-#include <rules.h>
-#include <string.h>
-#include <vb2_api.h>
-
-#include "misc.h"
-#include "../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 0 for the stages where we know that cbmem does not come online.
- * Even if this function returns 1 for romstage, depending upon the point in
- * bootup, cbmem might not actually be online.
- */
-static int cbmem_possibly_online(void)
-{
-	if (ENV_BOOTBLOCK)
-		return 0;
-
-	if (ENV_VERSTAGE && IS_ENABLED(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK))
-		return 0;
-
-	return 1;
-}
-
-/*
- * 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_VERIFY_FIRMWARE))
-		return 0;
-
-	if (IS_ENABLED(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK)) {
-		if (ENV_BOOTBLOCK && IS_ENABLED(CONFIG_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;
-}
diff --git a/src/vendorcode/google/chromeos/vboot2/secdata_mock.c b/src/vendorcode/google/chromeos/vboot2/secdata_mock.c
deleted file mode 100644
index 03616c1524..0000000000
--- a/src/vendorcode/google/chromeos/vboot2/secdata_mock.c
+++ /dev/null
@@ -1,38 +0,0 @@
-/* Copyright (c) 2015 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- *
- * Functions for querying, manipulating and locking rollback indices
- * stored in the TPM NVRAM.
- */
-
-#include <antirollback.h>
-#include <stdlib.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;
-}
diff --git a/src/vendorcode/google/chromeos/vboot2/vboot_handoff.c b/src/vendorcode/google/chromeos/vboot2/vboot_handoff.c
deleted file mode 100644
index 0e2cb84ccf..0000000000
--- a/src/vendorcode/google/chromeos/vboot2/vboot_handoff.c
+++ /dev/null
@@ -1,179 +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.
- */
-
-#include <arch/stages.h>
-#include <assert.h>
-#include <stdint.h>
-#include <stddef.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>
-#define NEED_VB20_INTERNALS  /* TODO: remove me! */
-#include <vb2_api.h>
-#include <vboot_struct.h>
-#include "../chromeos.h"
-#include "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 (get_sw_write_protect_state())
-		vb_sd->flags |= VBSD_BOOT_FIRMWARE_SW_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_VIRTUAL_DEV_SWITCH))
-		vb_sd->flags |= VBSD_HONOR_VIRT_DEV_SWITCH;
-	if (IS_ENABLED(CONFIG_EC_SOFTWARE_SYNC))
-		vb_sd->flags |= VBSD_EC_SOFTWARE_SYNC;
-	if (!IS_ENABLED(CONFIG_PHYSICAL_REC_SWITCH))
-		vb_sd->flags |= VBSD_BOOT_REC_SWITCH_VIRTUAL;
-	if (IS_ENABLED(CONFIG_VBOOT_EC_SLOW_UPDATE))
-		vb_sd->flags |= VBSD_EC_SLOW_UPDATE;
-	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);
-
-	/*
-	 * 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_DYNAMIC_WORK_BUFFER, 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_DYNAMIC_WORK_BUFFER)
-static void vb2_fill_handoff_cbmem(int unused)
-{
-	vboot_fill_handoff();
-}
-ROMSTAGE_CBMEM_INIT_HOOK(vb2_fill_handoff_cbmem)
-#endif
diff --git a/src/vendorcode/google/chromeos/vboot2/vboot_loader.c b/src/vendorcode/google/chromeos/vboot2/vboot_loader.c
deleted file mode 100644
index b76d20bebe..0000000000
--- a/src/vendorcode/google/chromeos/vboot2/vboot_loader.c
+++ /dev/null
@@ -1,159 +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 <rmodule.h>
-#include <rules.h>
-#include <string.h>
-#include "misc.h"
-#include "../vboot_common.h"
-#include "../symbols.h"
-
-/* 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 (ENV_VERSTAGE && IS_ENABLED(CONFIG_SEPARATE_VERSTAGE))
-		return 1;
-
-	if (!IS_ENABLED(CONFIG_SEPARATE_VERSTAGE)) {
-		if (ENV_ROMSTAGE &&
-		    IS_ENABLED(CONFIG_VBOOT_STARTS_IN_ROMSTAGE))
-			return 1;
-		if (ENV_BOOTBLOCK &&
-		    IS_ENABLED(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK))
-			return 1;
-	}
-
-	return 0;
-}
-
-static int verstage_should_load(void)
-{
-	if (!IS_ENABLED(CONFIG_SEPARATE_VERSTAGE))
-		return 0;
-
-	if (ENV_ROMSTAGE && IS_ENABLED(CONFIG_VBOOT_STARTS_IN_ROMSTAGE))
-		return 1;
-
-	if (ENV_BOOTBLOCK && IS_ENABLED(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK))
-		return 1;
-
-	return 0;
-}
-
-static int vboot_executed CAR_GLOBAL;
-
-int vb2_logic_executed(void)
-{
-	/* If this stage is supposed to run the vboot logic ensure it has been
-	 * executed. */
-	if (verification_should_run() && car_get_var(vboot_executed))
-		return 1;
-
-	/* If this stage is supposed to load verstage and verstage is returning
-	 * back to the calling stage check that it has been executed. */
-	if (verstage_should_load() && IS_ENABLED(CONFIG_RETURN_FROM_VERSTAGE))
-		if (car_get_var(vboot_executed))
-			return 1;
-
-	/* Handle all other stages post vboot execution. */
-	if (!ENV_BOOTBLOCK) {
-		if (IS_ENABLED(CONFIG_VBOOT_STARTS_IN_BOOTBLOCK))
-			return 1;
-		if (IS_ENABLED(CONFIG_VBOOT_STARTS_IN_ROMSTAGE) &&
-				!ENV_ROMSTAGE)
-			return 1;
-	}
-
-	return 0;
-}
-
-static void vboot_prepare(void)
-{
-	if (verification_should_run()) {
-		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_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_DYNAMIC_WORK_BUFFER 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_DYNAMIC_WORK_BUFFER)) {
-		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/vendorcode/google/chromeos/vboot2/vboot_logic.c b/src/vendorcode/google/chromeos/vboot2/vboot_logic.c
deleted file mode 100644
index 4c799c9a4f..0000000000
--- a/src/vendorcode/google/chromeos/vboot2/vboot_logic.c
+++ /dev/null
@@ -1,415 +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 <console/console.h>
-#include <console/vtxprintf.h>
-#include <delay.h>
-#include <string.h>
-#include <timestamp.h>
-#include <vb2_api.h>
-
-#include "../chromeos.h"
-#include "misc.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;
-
-	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;
-
-	/*
-	 * 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);
-
-	/* Read nvdata from a non-volatile storage. */
-	read_vbnv(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_VIRTUAL_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_WIPEOUT_SUPPORTED) && get_wipeout_mode_switch())
-		ctx.flags |= VB2_CONTEXT_FORCE_WIPEOUT_MODE;
-
-	if (IS_ENABLED(CONFIG_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();
-	}
-
-	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/vendorcode/google/chromeos/vboot2/verstage.c b/src/vendorcode/google/chromeos/vboot2/verstage.c
deleted file mode 100644
index 99bc28d5a3..0000000000
--- a/src/vendorcode/google/chromeos/vboot2/verstage.c
+++ /dev/null
@@ -1,44 +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_common.h"
-
-void __attribute__((weak)) verstage_mainboard_init(void)
-{
-	/* Default empty implementation. */
-}
-
-void verstage(void)
-{
-	console_init();
-	exception_init();
-	verstage_mainboard_init();
-
-	if (IS_ENABLED(CONFIG_RETURN_FROM_VERSTAGE)) {
-		verstage_main();
-	} else {
-		run_romstage();
-		hlt();
-	}
-}
-
-#if !IS_ENABLED(CONFIG_CHIPSET_PROVIDES_VERSTAGE_MAIN_SYMBOL)
-/* This is for boards that rely on main() for an entry point of a stage. */
-void main(void) __attribute__((alias ("verstage")));
-#endif