[coreboot-gerrit] Patch set updated for coreboot: f579500 vboot2: add verstage

Marc Jones (marc.jones@se-eng.com) gerrit at coreboot.org
Thu Jan 22 10:01:19 CET 2015


Marc Jones (marc.jones at se-eng.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/8224

-gerrit

commit f57950070ec2d5a68674437fd284287f2df09477
Author: Stefan Reinauer <stefan.reinauer at coreboot.org>
Date:   Wed Jan 14 19:51:47 2015 +0100

    vboot2: add verstage
    
    This reverts the revert commit 5780d6f3876723b94fbe3653c9d87dad6330862e
    and fixes the build issue that cuased it to be reverted.
    
    Verstage will host vboot2 for firmware verification.
    It's a stage in the sense that it has its own set of toolchains,
    compiler flags,
    and includes. This allows us to easily add object files as needed. But
    it's directly linked to bootblock. This allows us to avoid code
    duplication for stage loading and jumping (e.g. cbfs driver) for the
    boards
    where bootblock has to run in a different architecture (e.g. Tegra124).
    To avoid name space conflict, verstage symbols are prefixed with
    verstage_.
    
    TEST=Built with VBOOT2_VERIFY_FIRMWARE on/off. Booted Nyan Blaze.
    BUG=None
    BRANCH=none
    
    Original-Signed-off-by: Daisuke Nojiri <dnojiri at chromium.org>
    Original-Change-Id: Iad57741157ec70426c676e46c5855e6797ac1dac
    Original-Reviewed-on: https://chromium-review.googlesource.com/204376
    Original-Reviewed-by: Randall Spangler <rspangler at chromium.org>
    
    (cherry picked from commit 27940f891678dae975b68f2fc729ad7348192af3)
    Signed-off-by: Marc Jones <marc.jones at se-eng.com>
    Change-Id: I2a83b87c29d98d97ae316091cf3ed7b024e21daf
---
 Makefile.inc                                | 9 ++++++++-
 src/arch/arm/Kconfig                        | 4 ++++
 src/arch/arm/Makefile.inc                   | 2 +-
 src/arch/arm/armv7/Kconfig                  | 4 ++++
 src/arch/arm64/Kconfig                      | 4 ++++
 src/arch/arm64/armv8/Kconfig                | 3 +++
 src/arch/riscv/Kconfig                      | 4 ++++
 src/arch/x86/Kconfig                        | 4 ++++
 src/cpu/allwinner/a10/Kconfig               | 1 +
 src/cpu/amd/agesa/Kconfig                   | 1 +
 src/cpu/amd/geode_gx2/Kconfig               | 1 +
 src/cpu/amd/geode_lx/Kconfig                | 1 +
 src/cpu/amd/model_10xxx/Kconfig             | 1 +
 src/cpu/amd/model_fxx/Kconfig               | 1 +
 src/cpu/amd/pi/Kconfig                      | 1 +
 src/cpu/armltd/cortex-a9/Kconfig            | 1 +
 src/cpu/dmp/vortex86ex/Kconfig              | 1 +
 src/cpu/intel/ep80579/Kconfig               | 1 +
 src/cpu/intel/fsp_model_206ax/Kconfig       | 1 +
 src/cpu/intel/fsp_model_406dx/Kconfig       | 1 +
 src/cpu/intel/haswell/Kconfig               | 1 +
 src/cpu/intel/model_1067x/Kconfig           | 1 +
 src/cpu/intel/model_106cx/Kconfig           | 1 +
 src/cpu/intel/model_2065x/Kconfig           | 1 +
 src/cpu/intel/model_206ax/Kconfig           | 1 +
 src/cpu/intel/model_65x/Kconfig             | 1 +
 src/cpu/intel/model_67x/Kconfig             | 1 +
 src/cpu/intel/model_68x/Kconfig             | 1 +
 src/cpu/intel/model_69x/Kconfig             | 1 +
 src/cpu/intel/model_6bx/Kconfig             | 1 +
 src/cpu/intel/model_6dx/Kconfig             | 1 +
 src/cpu/intel/model_6ex/Kconfig             | 1 +
 src/cpu/intel/model_6fx/Kconfig             | 1 +
 src/cpu/intel/model_6xx/Kconfig             | 1 +
 src/cpu/intel/model_f0x/Kconfig             | 1 +
 src/cpu/intel/model_f1x/Kconfig             | 1 +
 src/cpu/intel/model_f2x/Kconfig             | 1 +
 src/cpu/intel/model_f3x/Kconfig             | 1 +
 src/cpu/intel/model_f4x/Kconfig             | 1 +
 src/cpu/qemu-x86/Kconfig                    | 1 +
 src/cpu/ti/am335x/Kconfig                   | 1 +
 src/cpu/via/c3/Kconfig                      | 1 +
 src/cpu/via/c7/Kconfig                      | 1 +
 src/cpu/via/nano/Kconfig                    | 1 +
 src/soc/nvidia/tegra124/Kconfig             | 1 +
 src/soc/nvidia/tegra124/Makefile.inc        | 2 ++
 src/soc/nvidia/tegra124/bootblock.c         | 7 +++++--
 src/soc/nvidia/tegra124/verstage.c          | 9 +++++++++
 src/soc/nvidia/tegra124/verstage.h          | 2 ++
 src/vendorcode/google/chromeos/Kconfig      | 8 ++++++++
 src/vendorcode/google/chromeos/Makefile.inc | 9 +++++++++
 toolchain.inc                               | 2 +-
 52 files changed, 105 insertions(+), 5 deletions(-)

diff --git a/Makefile.inc b/Makefile.inc
index b0289c0..0c6aafa 100644
--- a/Makefile.inc
+++ b/Makefile.inc
@@ -75,7 +75,7 @@ subdirs-y += site-local
 
 #######################################################################
 # Add source classes and their build options
-classes-y := ramstage romstage bootblock smm smmstub cpu_microcode
+classes-y := ramstage romstage bootblock smm smmstub cpu_microcode verstage
 
 # Add dynamic classes for rmodules
 $(foreach supported_arch,$(ARCH_SUPPORTED), \
@@ -128,6 +128,8 @@ ramstage-postprocess=$(foreach d,$(sort $(dir $(1))), \
 	$(eval $(d)ramstage.o: $(call files-in-dir,$(d),$(1)); $$(LD_ramstage) -o $$@ -r $$^ ) \
 	$(eval ramstage-objs:=$(d)ramstage.o $(filter-out $(call files-in-dir,$(d),$(1)),$(ramstage-objs))))
 
+verstage-c-ccopts:=-D__PRE_RAM__ -D__VER_STAGE__
+verstage-S-ccopts:=-D__PRE_RAM__ -D__VER_STAGE__
 romstage-c-ccopts:=-D__PRE_RAM__
 romstage-S-ccopts:=-D__PRE_RAM__
 ifeq ($(CONFIG_TRACE),y)
@@ -162,6 +164,7 @@ endif
 
 ramstage-c-deps:=$$(OPTION_TABLE_H)
 romstage-c-deps:=$$(OPTION_TABLE_H)
+verstage-c-deps:=$$(OPTION_TABLE_H)
 bootblock-c-deps:=$$(OPTION_TABLE_H)
 smm-c-deps:=$$(OPTION_TABLE_H)
 
@@ -374,6 +377,10 @@ $(obj)/%.romstage.o $(abspath $(obj))/%.romstage.o: $(obj)/%.c $(obj)/config.h $
 	@printf "    CC         $(subst $(obj)/,,$(@))\n"
 	$(CC_romstage) -MMD $(CFLAGS_romstage) $(CPPFLAGS_romstage) $(romstage-c-ccopts) -c -o $@ $<
 
+$(obj)/%.verstage.o $(abspath $(obj))/%.verstage.o: $(obj)/%.c $(obj)/config.h $(OPTION_TABLE_H)
+	@printf "    CC         $(subst $(obj)/,,$(@))\n"
+	$(CC_verstage) -MMD $(CFLAGS_verstage) $(verstage-c-ccopts) -c -o $@ $<
+
 $(obj)/%.bootblock.o $(abspath $(obj))/%.bootblock.o: $(obj)/%.c $(obj)/config.h $(OPTION_TABLE_H)
 	@printf "    CC         $(subst $(obj)/,,$(@))\n"
 	$(CC_bootblock) -MMD $(CFLAGS_bootblock) $(CPPFLAGS_bootblock) $(bootblock-c-ccopts) -c -o $@ $<
diff --git a/src/arch/arm/Kconfig b/src/arch/arm/Kconfig
index 156c8c2..1c3a339 100644
--- a/src/arch/arm/Kconfig
+++ b/src/arch/arm/Kconfig
@@ -3,6 +3,10 @@ config ARCH_BOOTBLOCK_ARM
 	default n
 	select ARCH_ARM
 
+config ARCH_VERSTAGE_ARM
+	bool
+	default n
+
 config ARCH_ROMSTAGE_ARM
 	bool
 	default n
diff --git a/src/arch/arm/Makefile.inc b/src/arch/arm/Makefile.inc
index 5698f38..6f65a71 100644
--- a/src/arch/arm/Makefile.inc
+++ b/src/arch/arm/Makefile.inc
@@ -61,7 +61,7 @@ bootblock-y += memcpy.S
 bootblock-y += memmove.S
 bootblock-y += div0.c
 
-$(objcbfs)/bootblock.debug: $(src)/arch/arm/bootblock.ld $(obj)/ldoptions $$(bootblock-objs)
+$(objcbfs)/bootblock.debug: $(src)/arch/arm/bootblock.ld $(obj)/ldoptions $$(bootblock-objs) $$(VERSTAGE_LIB)
 	@printf "    LINK       $(subst $(obj)/,,$(@))\n"
 	$(LD_bootblock) --gc-sections -static -o $@ -L$(obj) --start-group $(bootblock-objs) --end-group -T $(src)/arch/arm/bootblock.ld
 
diff --git a/src/arch/arm/armv7/Kconfig b/src/arch/arm/armv7/Kconfig
index f8e0205..aa188e2 100644
--- a/src/arch/arm/armv7/Kconfig
+++ b/src/arch/arm/armv7/Kconfig
@@ -2,6 +2,10 @@ config ARCH_BOOTBLOCK_ARMV7
 	def_bool n
 	select ARCH_BOOTBLOCK_ARM
 
+config ARCH_VERSTAGE_ARMV7
+	def_bool n
+	select ARCH_VERSTAGE_ARM
+
 config ARCH_ROMSTAGE_ARMV7
 	def_bool n
 	select ARCH_ROMSTAGE_ARM
diff --git a/src/arch/arm64/Kconfig b/src/arch/arm64/Kconfig
index dc0e332..186dd44 100644
--- a/src/arch/arm64/Kconfig
+++ b/src/arch/arm64/Kconfig
@@ -3,6 +3,10 @@ config ARCH_BOOTBLOCK_ARM64
 	default n
 	select ARCH_ARM64
 
+config ARCH_VERSTAGE_ARM64
+	bool
+	default n
+
 config ARCH_ROMSTAGE_ARM64
 	bool
 	default n
diff --git a/src/arch/arm64/armv8/Kconfig b/src/arch/arm64/armv8/Kconfig
index fc2e668..5840e81 100644
--- a/src/arch/arm64/armv8/Kconfig
+++ b/src/arch/arm64/armv8/Kconfig
@@ -1,6 +1,9 @@
 config ARCH_BOOTBLOCK_ARM_V8_64
 	def_bool n
 	select ARCH_BOOTBLOCK_ARM64
+config ARCH_VERSTAGE_ARM_V8_64
+	def_bool n
+	select ARCH_VERSTAGE_ARM64
 config ARCH_ROMSTAGE_ARM_V8_64
 	def_bool n
 	select ARCH_ROMSTAGE_ARM64
diff --git a/src/arch/riscv/Kconfig b/src/arch/riscv/Kconfig
index 120203d..f2dc41e 100644
--- a/src/arch/riscv/Kconfig
+++ b/src/arch/riscv/Kconfig
@@ -3,6 +3,10 @@ config ARCH_BOOTBLOCK_RISCV
 	default n
 	select ARCH_RISCV
 
+config ARCH_VERSTAGE_RISCV
+	bool
+	default n
+
 config ARCH_ROMSTAGE_RISCV
 	bool
 	default n
diff --git a/src/arch/x86/Kconfig b/src/arch/x86/Kconfig
index 56d8f88..edbc67a 100644
--- a/src/arch/x86/Kconfig
+++ b/src/arch/x86/Kconfig
@@ -3,6 +3,10 @@ config ARCH_BOOTBLOCK_X86_32
 	default n
 	select ARCH_X86
 
+config ARCH_VERSTAGE_X86_32
+	bool
+	default n
+
 config ARCH_ROMSTAGE_X86_32
 	bool
 	default n
diff --git a/src/cpu/allwinner/a10/Kconfig b/src/cpu/allwinner/a10/Kconfig
index b7b435f..58bf20d 100644
--- a/src/cpu/allwinner/a10/Kconfig
+++ b/src/cpu/allwinner/a10/Kconfig
@@ -7,6 +7,7 @@ if CPU_ALLWINNER_A10
 config CPU_SPECIFIC_OPTIONS
 	def_bool y
 	select ARCH_BOOTBLOCK_ARMV7
+	select ARCH_VERSTAGE_ARMV7
 	select ARCH_ROMSTAGE_ARMV7
 	select ARCH_RAMSTAGE_ARMV7
 	select HAVE_MONOTONIC_TIMER
diff --git a/src/cpu/amd/agesa/Kconfig b/src/cpu/amd/agesa/Kconfig
index d539e19..2aeb8d7 100644
--- a/src/cpu/amd/agesa/Kconfig
+++ b/src/cpu/amd/agesa/Kconfig
@@ -28,6 +28,7 @@ config CPU_AMD_AGESA
 	default y if CPU_AMD_AGESA_FAMILY16_KB
 	default n
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select TSC_SYNC_LFENCE
diff --git a/src/cpu/amd/geode_gx2/Kconfig b/src/cpu/amd/geode_gx2/Kconfig
index 88fdc8f..1e4f435 100644
--- a/src/cpu/amd/geode_gx2/Kconfig
+++ b/src/cpu/amd/geode_gx2/Kconfig
@@ -20,6 +20,7 @@
 config CPU_AMD_GEODE_GX2
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 
diff --git a/src/cpu/amd/geode_lx/Kconfig b/src/cpu/amd/geode_lx/Kconfig
index b700e0c..e3e2d2e 100644
--- a/src/cpu/amd/geode_lx/Kconfig
+++ b/src/cpu/amd/geode_lx/Kconfig
@@ -1,6 +1,7 @@
 config CPU_AMD_GEODE_LX
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 
diff --git a/src/cpu/amd/model_10xxx/Kconfig b/src/cpu/amd/model_10xxx/Kconfig
index 5e45b0d..cf5748c 100644
--- a/src/cpu/amd/model_10xxx/Kconfig
+++ b/src/cpu/amd/model_10xxx/Kconfig
@@ -1,6 +1,7 @@
 config CPU_AMD_MODEL_10XXX
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SSE
diff --git a/src/cpu/amd/model_fxx/Kconfig b/src/cpu/amd/model_fxx/Kconfig
index f577b55..bdcf5bb 100644
--- a/src/cpu/amd/model_fxx/Kconfig
+++ b/src/cpu/amd/model_fxx/Kconfig
@@ -1,6 +1,7 @@
 config CPU_AMD_MODEL_FXX
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select MMX
diff --git a/src/cpu/amd/pi/Kconfig b/src/cpu/amd/pi/Kconfig
index 366beb4..88c4745 100644
--- a/src/cpu/amd/pi/Kconfig
+++ b/src/cpu/amd/pi/Kconfig
@@ -22,6 +22,7 @@ config CPU_AMD_PI
 	default y if CPU_AMD_PI_00730F01
 	default n
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select TSC_SYNC_LFENCE
diff --git a/src/cpu/armltd/cortex-a9/Kconfig b/src/cpu/armltd/cortex-a9/Kconfig
index fb6cd0f..7ab3f55 100644
--- a/src/cpu/armltd/cortex-a9/Kconfig
+++ b/src/cpu/armltd/cortex-a9/Kconfig
@@ -1,6 +1,7 @@
 config CPU_ARMLTD_CORTEX_A9
 	bool
 	select ARCH_BOOTBLOCK_ARMV7
+	select ARCH_VERSTAGE_ARMV7
 	select ARCH_ROMSTAGE_ARMV7
 	select ARCH_RAMSTAGE_ARMV7
 	default n
diff --git a/src/cpu/dmp/vortex86ex/Kconfig b/src/cpu/dmp/vortex86ex/Kconfig
index a7253e5..080bb64 100644
--- a/src/cpu/dmp/vortex86ex/Kconfig
+++ b/src/cpu/dmp/vortex86ex/Kconfig
@@ -20,6 +20,7 @@
 config CPU_DMP_VORTEX86EX
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select UDELAY_TSC
diff --git a/src/cpu/intel/ep80579/Kconfig b/src/cpu/intel/ep80579/Kconfig
index ec58428..5d90611 100644
--- a/src/cpu/intel/ep80579/Kconfig
+++ b/src/cpu/intel/ep80579/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_EP80579
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SSE
diff --git a/src/cpu/intel/fsp_model_206ax/Kconfig b/src/cpu/intel/fsp_model_206ax/Kconfig
index 9b0edfc..76b870e 100644
--- a/src/cpu/intel/fsp_model_206ax/Kconfig
+++ b/src/cpu/intel/fsp_model_206ax/Kconfig
@@ -30,6 +30,7 @@ config CPU_SPECIFIC_OPTIONS
 	def_bool y
 	select PLATFORM_USES_FSP
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/fsp_model_406dx/Kconfig b/src/cpu/intel/fsp_model_406dx/Kconfig
index 2f891ad..7169c7e 100644
--- a/src/cpu/intel/fsp_model_406dx/Kconfig
+++ b/src/cpu/intel/fsp_model_406dx/Kconfig
@@ -26,6 +26,7 @@ config CPU_SPECIFIC_OPTIONS
 	def_bool y
 	select PLATFORM_USES_FSP
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/haswell/Kconfig b/src/cpu/intel/haswell/Kconfig
index 0597363..e911b17 100644
--- a/src/cpu/intel/haswell/Kconfig
+++ b/src/cpu/intel/haswell/Kconfig
@@ -7,6 +7,7 @@ if CPU_INTEL_HASWELL
 config CPU_SPECIFIC_OPTIONS
 	def_bool y
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select BACKUP_DEFAULT_SMM_REGION
diff --git a/src/cpu/intel/model_1067x/Kconfig b/src/cpu/intel/model_1067x/Kconfig
index 794c205..da8ddc5 100644
--- a/src/cpu/intel/model_1067x/Kconfig
+++ b/src/cpu/intel/model_1067x/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_1067X
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/model_106cx/Kconfig b/src/cpu/intel/model_106cx/Kconfig
index 3b690cf..09acfd9 100644
--- a/src/cpu/intel/model_106cx/Kconfig
+++ b/src/cpu/intel/model_106cx/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_106CX
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/model_2065x/Kconfig b/src/cpu/intel/model_2065x/Kconfig
index 8185d3a..4a85f09 100644
--- a/src/cpu/intel/model_2065x/Kconfig
+++ b/src/cpu/intel/model_2065x/Kconfig
@@ -6,6 +6,7 @@ if CPU_INTEL_MODEL_2065X
 config CPU_SPECIFIC_OPTIONS
 	def_bool y
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/model_206ax/Kconfig b/src/cpu/intel/model_206ax/Kconfig
index afd155a..490849b 100644
--- a/src/cpu/intel/model_206ax/Kconfig
+++ b/src/cpu/intel/model_206ax/Kconfig
@@ -9,6 +9,7 @@ if CPU_INTEL_MODEL_206AX || CPU_INTEL_MODEL_306AX
 config CPU_SPECIFIC_OPTIONS
 	def_bool y
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/model_65x/Kconfig b/src/cpu/intel/model_65x/Kconfig
index 7af4ec9..4af7145 100644
--- a/src/cpu/intel/model_65x/Kconfig
+++ b/src/cpu/intel/model_65x/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_65X
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/model_67x/Kconfig b/src/cpu/intel/model_67x/Kconfig
index 1fd514b..2da200e 100644
--- a/src/cpu/intel/model_67x/Kconfig
+++ b/src/cpu/intel/model_67x/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_67X
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/model_68x/Kconfig b/src/cpu/intel/model_68x/Kconfig
index 8a8de0d..d77c9c9 100644
--- a/src/cpu/intel/model_68x/Kconfig
+++ b/src/cpu/intel/model_68x/Kconfig
@@ -21,6 +21,7 @@
 config CPU_INTEL_MODEL_68X
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/model_69x/Kconfig b/src/cpu/intel/model_69x/Kconfig
index e1cd658..ff1d5e2 100644
--- a/src/cpu/intel/model_69x/Kconfig
+++ b/src/cpu/intel/model_69x/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_69X
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/model_6bx/Kconfig b/src/cpu/intel/model_6bx/Kconfig
index 46fbf1f..64f193a 100644
--- a/src/cpu/intel/model_6bx/Kconfig
+++ b/src/cpu/intel/model_6bx/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_6BX
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/model_6dx/Kconfig b/src/cpu/intel/model_6dx/Kconfig
index b1a4c38..edbeac8 100644
--- a/src/cpu/intel/model_6dx/Kconfig
+++ b/src/cpu/intel/model_6dx/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_6DX
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/model_6ex/Kconfig b/src/cpu/intel/model_6ex/Kconfig
index 5c1b8de..08a5775 100644
--- a/src/cpu/intel/model_6ex/Kconfig
+++ b/src/cpu/intel/model_6ex/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_6EX
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/model_6fx/Kconfig b/src/cpu/intel/model_6fx/Kconfig
index 0250397..baae196 100644
--- a/src/cpu/intel/model_6fx/Kconfig
+++ b/src/cpu/intel/model_6fx/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_6FX
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/model_6xx/Kconfig b/src/cpu/intel/model_6xx/Kconfig
index 546ac91..7cafb81 100644
--- a/src/cpu/intel/model_6xx/Kconfig
+++ b/src/cpu/intel/model_6xx/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_6XX
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/model_f0x/Kconfig b/src/cpu/intel/model_f0x/Kconfig
index bae4b0e..bfd8d3a 100644
--- a/src/cpu/intel/model_f0x/Kconfig
+++ b/src/cpu/intel/model_f0x/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_F0X
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/model_f1x/Kconfig b/src/cpu/intel/model_f1x/Kconfig
index 85bf5ad..cd4cdcf 100644
--- a/src/cpu/intel/model_f1x/Kconfig
+++ b/src/cpu/intel/model_f1x/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_F1X
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/model_f2x/Kconfig b/src/cpu/intel/model_f2x/Kconfig
index 2871231..5ef1539 100644
--- a/src/cpu/intel/model_f2x/Kconfig
+++ b/src/cpu/intel/model_f2x/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_F2X
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/model_f3x/Kconfig b/src/cpu/intel/model_f3x/Kconfig
index cd3aa5b..7eaa820 100644
--- a/src/cpu/intel/model_f3x/Kconfig
+++ b/src/cpu/intel/model_f3x/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_F3X
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/intel/model_f4x/Kconfig b/src/cpu/intel/model_f4x/Kconfig
index cc23f04..4ef60b5 100644
--- a/src/cpu/intel/model_f4x/Kconfig
+++ b/src/cpu/intel/model_f4x/Kconfig
@@ -1,6 +1,7 @@
 config CPU_INTEL_MODEL_F4X
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select SMP
diff --git a/src/cpu/qemu-x86/Kconfig b/src/cpu/qemu-x86/Kconfig
index ada6e23..46b0e00 100644
--- a/src/cpu/qemu-x86/Kconfig
+++ b/src/cpu/qemu-x86/Kconfig
@@ -20,5 +20,6 @@
 config CPU_QEMU_X86
 	bool
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
diff --git a/src/cpu/ti/am335x/Kconfig b/src/cpu/ti/am335x/Kconfig
index eb60ad1..5ac629d 100644
--- a/src/cpu/ti/am335x/Kconfig
+++ b/src/cpu/ti/am335x/Kconfig
@@ -1,5 +1,6 @@
 config CPU_TI_AM335X
 	select ARCH_BOOTBLOCK_ARMV7
+	select ARCH_VERSTAGE_ARMV7
 	select ARCH_ROMSTAGE_ARMV7
 	select ARCH_RAMSTAGE_ARMV7
 	select HAVE_MONOTONIC_TIMER
diff --git a/src/cpu/via/c3/Kconfig b/src/cpu/via/c3/Kconfig
index 2e4d177..2a54603 100644
--- a/src/cpu/via/c3/Kconfig
+++ b/src/cpu/via/c3/Kconfig
@@ -6,6 +6,7 @@ if CPU_VIA_C3
 config CPU_SPECIFIC_OPTIONS
 	def_bool y
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select UDELAY_TSC
diff --git a/src/cpu/via/c7/Kconfig b/src/cpu/via/c7/Kconfig
index 10b52bb..3507713 100644
--- a/src/cpu/via/c7/Kconfig
+++ b/src/cpu/via/c7/Kconfig
@@ -6,6 +6,7 @@ if CPU_VIA_C7
 config CPU_SPECIFIC_OPTIONS
 	def_bool y
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select UDELAY_TSC
diff --git a/src/cpu/via/nano/Kconfig b/src/cpu/via/nano/Kconfig
index 4242dd6..087f9f8 100644
--- a/src/cpu/via/nano/Kconfig
+++ b/src/cpu/via/nano/Kconfig
@@ -25,6 +25,7 @@ if CPU_VIA_NANO
 config CPU_SPECIFIC_OPTIONS
 	def_bool y
 	select ARCH_BOOTBLOCK_X86_32
+	select ARCH_VERSTAGE_X86_32
 	select ARCH_ROMSTAGE_X86_32
 	select ARCH_RAMSTAGE_X86_32
 	select UDELAY_TSC
diff --git a/src/soc/nvidia/tegra124/Kconfig b/src/soc/nvidia/tegra124/Kconfig
index 195261e..ea946e6 100644
--- a/src/soc/nvidia/tegra124/Kconfig
+++ b/src/soc/nvidia/tegra124/Kconfig
@@ -2,6 +2,7 @@ config SOC_NVIDIA_TEGRA124
 	bool
 	default n
 	select ARCH_BOOTBLOCK_ARMV4
+	select ARCH_VERSTAGE_ARMV7
 	select ARCH_ROMSTAGE_ARMV7
 	select ARCH_RAMSTAGE_ARMV7
 	select HAVE_UART_SPECIAL
diff --git a/src/soc/nvidia/tegra124/Makefile.inc b/src/soc/nvidia/tegra124/Makefile.inc
index 792bb99..b306412 100644
--- a/src/soc/nvidia/tegra124/Makefile.inc
+++ b/src/soc/nvidia/tegra124/Makefile.inc
@@ -20,6 +20,8 @@ ifeq ($(CONFIG_BOOTBLOCK_CONSOLE),y)
 bootblock-$(CONFIG_CONSOLE_SERIAL) += uart.c
 endif
 
+verstage-y += verstage.c
+
 romstage-y += cbfs.c
 romstage-y += cbmem.c
 romstage-y += clock.c
diff --git a/src/soc/nvidia/tegra124/bootblock.c b/src/soc/nvidia/tegra124/bootblock.c
index 2857a90..5f1e850 100644
--- a/src/soc/nvidia/tegra124/bootblock.c
+++ b/src/soc/nvidia/tegra124/bootblock.c
@@ -23,9 +23,9 @@
 #include <console/console.h>
 #include <soc/clock.h>
 #include <soc/nvidia/tegra/apbmisc.h>
-
 #include "pinmux.h"
 #include "power.h"
+#include "verstage.h"
 
 void main(void)
 {
@@ -72,7 +72,10 @@ void main(void)
 	power_enable_cpu_rail();
 	power_ungate_cpu();
 
-	entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, "fallback/romstage");
+	if (IS_ENABLED(CONFIG_VBOOT2_VERIFY_FIRMWARE))
+		entry = (void *)verstage_vboot_main;
+	else
+		entry = cbfs_load_stage(CBFS_DEFAULT_MEDIA, "fallback/romstage");
 
 	if (entry)
 		clock_cpu0_config_and_reset(entry);
diff --git a/src/soc/nvidia/tegra124/verstage.c b/src/soc/nvidia/tegra124/verstage.c
new file mode 100644
index 0000000..234a89d
--- /dev/null
+++ b/src/soc/nvidia/tegra124/verstage.c
@@ -0,0 +1,9 @@
+#include "verstage.h"
+
+/**
+ * Stage entry point
+ */
+void vboot_main(void)
+{
+	for(;;);
+}
diff --git a/src/soc/nvidia/tegra124/verstage.h b/src/soc/nvidia/tegra124/verstage.h
new file mode 100644
index 0000000..a0bac34
--- /dev/null
+++ b/src/soc/nvidia/tegra124/verstage.h
@@ -0,0 +1,2 @@
+void vboot_main(void);
+void verstage_vboot_main(void);
diff --git a/src/vendorcode/google/chromeos/Kconfig b/src/vendorcode/google/chromeos/Kconfig
index 8156758..62d991b 100644
--- a/src/vendorcode/google/chromeos/Kconfig
+++ b/src/vendorcode/google/chromeos/Kconfig
@@ -85,6 +85,14 @@ config VBOOT_VERIFY_FIRMWARE
 	  Enabling VBOOT_VERIFY_FIRMWARE will use vboot to verify the ramstage
 	  and boot loader.
 
+config VBOOT2_VERIFY_FIRMWARE
+  bool "Firmware Verification with vboot2"
+  default n
+  depends on CHROMEOS
+  help
+	  Enabling VBOOT2_VERIFY_FIRMWARE will use vboot2 to verify the romstage
+	  and boot loader.
+
 config EC_SOFTWARE_SYNC
 	bool "Enable EC software sync"
 	default n
diff --git a/src/vendorcode/google/chromeos/Makefile.inc b/src/vendorcode/google/chromeos/Makefile.inc
index e17f50c..12d35b6 100644
--- a/src/vendorcode/google/chromeos/Makefile.inc
+++ b/src/vendorcode/google/chromeos/Makefile.inc
@@ -93,3 +93,12 @@ $(VB_LIB):
 		fwlib
 
 endif
+
+ifeq ($(CONFIG_VBOOT2_VERIFY_FIRMWARE),y)
+VERSTAGE_LIB = $(obj)/vendorcode/google/chromeos/verstage.a
+$(VERSTAGE_LIB): $$(verstage-objs)
+	@printf "    AR         $(subst $(obj)/,,$(@))\n"
+	$(AR_verstage) rc $@.tmp $(verstage-objs)
+	@printf "    OBJCOPY    $(subst $(obj)/,,$(@))\n"
+	$(OBJCOPY_verstage) --prefix-symbols=verstage_ $@.tmp $@
+endif
diff --git a/toolchain.inc b/toolchain.inc
index 90e3c52..dd8369d 100644
--- a/toolchain.inc
+++ b/toolchain.inc
@@ -51,7 +51,7 @@ HOSTCXX:=CCC_CXX="$(HOSTCXX)" $(CXX)
 ROMCC=CCC_CC="$(ROMCC_BIN)" $(CC)
 endif
 
-COREBOOT_STANDARD_STAGES := bootblock romstage ramstage
+COREBOOT_STANDARD_STAGES := bootblock verstage romstage ramstage
 
 ARCHDIR-i386    := x86
 ARCHDIR-x86_32  := x86



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