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Kconfig: Add config to insert ucode address in second FIT 

This config is used to provide the name of a region where a microcode
is located. The address of this will be added as the first entry in
the FIT of the topswap bootblock.

This adds a capability to associate two microcodes for each
of the two bootblocks, this allows for the CPU to boot with different
microcodes with 2 separate bootblocks.

Change-Id: I4ee41d90bae34862aa68c9b8bd69288de1335585
Signed-off-by: Rizwan Qureshi <rizwan.qureshi@intel.com>
Reviewed-on: https://review.coreboot.org/27151
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Furquan Shaikh <furquan@google.com>
This commit is contained in:
Rizwan Qureshi 2018-06-18 19:50:18 +05:30 committed by Patrick Georgi
parent b082670234
commit 5348512451
2 changed files with 21 additions and 2 deletions
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12
Makefile.inc
View File

@ -958,6 +958,7 @@ $(obj)/fmap.fmap: $(obj)/fmap.fmd $(FMAPTOOL)
ifeq ($(CONFIG_INTEL_ADD_TOP_SWAP_BOOTBLOCK),y)
TS_OPTIONS := -j $(CONFIG_INTEL_TOP_SWAP_BOOTBLOCK_SIZE)
FIT_OPTIONS := $(TS_OPTIONS)
endif
ifneq ($(CONFIG_UPDATE_IMAGE),y)
$(obj)/coreboot.pre: $(objcbfs)/bootblock.bin $$(prebuilt-files) $(CBFSTOOL) $$(cpu_ucode_cbfs_file) $(obj)/fmap.fmap $(obj)/fmap.desc
@ -1003,6 +1004,11 @@ $(REFCODE_BLOB): $(RMODTOOL)
$(RMODTOOL) -i $(CONFIG_REFCODE_BLOB_FILE) -o $@
endif
FIT_ENTRY=$(call strip_quotes, $(CONFIG_INTEL_TOP_SWAP_FIT_ENTRY_FMAP_REG))
ifneq ($(FIT_ENTRY),)
FIT_OPTIONS += -q $(FIT_ENTRY)
endif
$(obj)/coreboot.rom: $(obj)/coreboot.pre $(objcbfs)/ramstage.elf $(CBFSTOOL) $$(INTERMEDIATE)
@printf " CBFS $(subst $(obj)/,,$(@))\n"
# The full ROM may be larger than the CBFS part, so create an empty
@ -1020,12 +1026,14 @@ endif
ifeq ($(CONFIG_CPU_INTEL_FIRMWARE_INTERFACE_TABLE),y)
ifeq ($(CONFIG_CPU_MICROCODE_CBFS_EXTERNAL_HEADER),y)
@printf " UPDATE-FIT\n"
$(CBFSTOOL) $@.tmp update-fit -n cpu_microcode_blob.bin -x $(CONFIG_CPU_INTEL_NUM_FIT_ENTRIES)
$(CBFSTOOL) $@.tmp update-fit -n cpu_microcode_blob.bin -x $(CONFIG_CPU_INTEL_NUM_FIT_ENTRIES) \
$(FIT_OPTIONS)
endif
ifeq ($(CONFIG_CPU_MICROCODE_CBFS_GENERATE),y)
@printf " UPDATE-FIT\n"
$(CBFSTOOL) $@.tmp update-fit -n cpu_microcode_blob.bin -x $(CONFIG_CPU_INTEL_NUM_FIT_ENTRIES)
$(CBFSTOOL) $@.tmp update-fit -n cpu_microcode_blob.bin -x $(CONFIG_CPU_INTEL_NUM_FIT_ENTRIES) \
$(FIT_OPTIONS)
endif
endif
mv $@.tmp $@

11
src/soc/intel/Kconfig
View File

@ -37,3 +37,14 @@ config INTEL_TOP_SWAP_BOOTBLOCK_SIZE
help
Set this config to a supported topswap size.
Valid sizes: 0x10000 0x20000 0x40000 0x80000 0x100000
config INTEL_TOP_SWAP_FIT_ENTRY_FMAP_REG
string
depends on INTEL_ADD_TOP_SWAP_BOOTBLOCK
help
Use this config to specify the name of a FMAP region (which should
hold a microcode) whose address as the first entry in the topswap FIT.
This is useful in creating a asymmetric FIT in top swap bootblock
than the one in non-topswap bootblock. This string will be passed
onto cbfstool (-q option). cbfstool will not parse the region for MCU
entries, and only locate the region and insert its address into FIT.