44 lines
1.7 KiB
Makefile
44 lines
1.7 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-$(CONFIG_CPU_MICROCODE_CBFS_GENERATE) += cpu_microcode_blob.bin
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endif
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# We just mash all microcode binaries together into one binary to rule them all.
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# This approach assumes that the microcode binaries are properly padded, and
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# their headers specify the correct size. This works fairly well on isolatied
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# updates, such as Intel and some AMD microcode, but won't work very well if the
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# updates are wrapped in a container, like AMD's microcode update container. If
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# there is only one microcode binary (i.e. one container), then we don't have
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# this issue, and this rule will continue to work.
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$(obj)/cpu_microcode_blob.bin: $$(cpu_microcode_bins)
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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-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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