diff options
Diffstat (limited to 'src/security/vboot/Makefile.inc')
| -rw-r--r-- | src/security/vboot/Makefile.inc | 263 |
1 files changed, 263 insertions, 0 deletions
diff --git a/src/security/vboot/Makefile.inc b/src/security/vboot/Makefile.inc new file mode 100644 index 0000000000..75ecff3b21 --- /dev/null +++ b/src/security/vboot/Makefile.inc @@ -0,0 +1,263 @@ +## +## 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 |