85653748a4
Because the binary repo is disabled by default, we get frequent questions about why the build failed, relating to microcode in the binary repository. - Show an error saying that the file is missing instead of the typical make error of no rule to build the file. - Show a note encouraging users to try enabling the binary repo if it's not enabled. Change-Id: If4148c18cfb781ed2932bd2ae4a289b621afdebf Signed-off-by: Martin Roth <martinroth@google.com> Reviewed-on: https://review.coreboot.org/17940 Tested-by: build bot (Jenkins) Reviewed-by: Paul Menzel <paulepanter@users.sourceforge.net> Reviewed-by: Nico Huber <nico.h@gmx.de>
64 lines
2.5 KiB
Makefile
64 lines
2.5 KiB
Makefile
################################################################################
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## Subdirectories
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################################################################################
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subdirs-y += allwinner
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subdirs-y += amd
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subdirs-y += dmp
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subdirs-y += armltd
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subdirs-y += imgtec
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subdirs-y += intel
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subdirs-y += ti
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subdirs-y += via
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subdirs-$(CONFIG_ARCH_X86) += x86
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subdirs-$(CONFIG_CPU_QEMU_X86) += qemu-x86
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$(eval $(call create_class_compiler,cpu_microcode,x86_32))
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################################################################################
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## Rules for building the microcode blob in CBFS
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################################################################################
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ifneq ($(CONFIG_CPU_MICROCODE_MULTIPLE_FILES), y)
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cbfs-files-$(CONFIG_CPU_MICROCODE_CBFS_GENERATE) += cpu_microcode_blob.bin
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endif
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ifeq ($(CONFIG_CPU_MICROCODE_CBFS_EXTERNAL_HEADER),y)
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cbfs-files-y += cpu_microcode_blob.bin
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cpu_microcode_blob.bin-file = $(objgenerated)/microcode.bin
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$(objgenerated)/microcode.bin:
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echo " util/scripts/ucode_h_to_bin.sh $(objgenerated)/microcode.bin \"$(CONFIG_CPU_MICROCODE_HEADER_FILES)\""
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util/scripts/ucode_h_to_bin.sh $(objgenerated)/microcode.bin $(CONFIG_CPU_MICROCODE_HEADER_FILES)
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endif
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# We just mash all microcode binaries together into one binary to rule them all.
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# This approach assumes that the microcode binaries are properly padded, and
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# their headers specify the correct size. This works fairly well on isolatied
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# updates, such as Intel and some AMD microcode, but won't work very well if the
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# updates are wrapped in a container, like AMD's microcode update container. If
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# there is only one microcode binary (i.e. one container), then we don't have
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# this issue, and this rule will continue to work.
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$(obj)/cpu_microcode_blob.bin: $$(wildcard $$(cpu_microcode_bins))
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for bin in $(cpu_microcode_bins); do \
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if [ ! -f "$$bin" ]; then \
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echo "Microcode error: $$bin does not exist"; \
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NO_MICROCODE_FILE=1; \
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fi; \
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done; \
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if [ -n "$$NO_MICROCODE_FILE" ]; then \
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if [ -z "$(CONFIG_USE_BLOBS)" ] && [ -n "$(CONFIG_CPU_MICROCODE_CBFS_GENERATE)" ]; then \
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echo "Try enabling binary-only repository in Kconfig 'General setup' menu."; \
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fi; \
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false; \
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fi
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@printf " MICROCODE $(subst $(obj)/,,$(@))\n"
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@echo $(cpu_microcode_bins)
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cat /dev/null $+ > $@
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cpu_microcode_blob.bin-file ?= $(obj)/cpu_microcode_blob.bin
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cpu_microcode_blob.bin-type := microcode
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ifneq ($(CONFIG_CPU_MICROCODE_CBFS_LOC),)
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cpu_microcode_blob.bin-COREBOOT-position := $(CONFIG_CPU_MICROCODE_CBFS_LOC)
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else
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cpu_microcode_blob.bin-align := 16
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endif
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