diff options
Diffstat (limited to 'src/cpu/Makefile.mk')
| -rw-r--r-- | src/cpu/Makefile.mk | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/src/cpu/Makefile.mk b/src/cpu/Makefile.mk new file mode 100644 index 0000000000..b1c1b1bb3e --- /dev/null +++ b/src/cpu/Makefile.mk @@ -0,0 +1,71 @@ +## SPDX-License-Identifier: GPL-2.0-only + +################################################################################ +## Subdirectories +################################################################################ +subdirs-y += amd +subdirs-y += armltd +subdirs-y += intel +subdirs-y += ti +subdirs-$(CONFIG_ARCH_X86) += x86 +subdirs-$(CONFIG_CPU_QEMU_X86) += qemu-x86 +subdirs-$(CONFIG_CPU_POWER9) += power9 + +$(eval $(call create_class_compiler,cpu_microcode,x86_32)) +################################################################################ +## Rules for building the microcode blob in CBFS +################################################################################ + +cbfs-files-$(CONFIG_USE_CPU_MICROCODE_CBFS_BINS) += cpu_microcode_blob.bin + +ifeq ($(CONFIG_CPU_MICROCODE_CBFS_EXTERNAL_HEADER),y) +cbfs-files-y += cpu_microcode_blob.bin +cpu_microcode_blob.bin-file = $(objgenerated)/microcode.bin + +$(objgenerated)/microcode.bin: $(call strip_quotes,$(CONFIG_CPU_MICROCODE_HEADER_FILES)) + echo " util/scripts/ucode_h_to_bin.sh $(objgenerated)/microcode.bin \"$(CONFIG_CPU_MICROCODE_HEADER_FILES)\"" + util/scripts/ucode_h_to_bin.sh $(objgenerated)/microcode.bin $(CONFIG_CPU_MICROCODE_HEADER_FILES) +endif + +ifeq ($(CONFIG_CPU_MICROCODE_CBFS_EXTERNAL_BINS),y) +$(obj)/cpu_microcode_blob.bin: cpu_microcode_bins := $(call strip_quotes,$(CONFIG_CPU_UCODE_BINARIES)) +endif +# otherwise `cpu_microcode_bins` should be filled by platform makefiles + +# We just mash all microcode binaries together into one binary to rule them all. +# This approach assumes that the microcode binaries are properly padded, and +# their headers specify the correct size. This works fairly well on isolatied +# updates, such as Intel and some AMD microcode, but won't work very well if the +# updates are wrapped in a container, like AMD's microcode update container. If +# there is only one microcode binary (i.e. one container), then we don't have +# this issue, and this rule will continue to work. +$(obj)/cpu_microcode_blob.bin: $$(wildcard $$(cpu_microcode_bins)) $(DOTCONFIG) + for bin in $(cpu_microcode_bins); do \ + if [ ! -f "$$bin" ]; then \ + echo "Microcode error: $$bin does not exist"; \ + NO_MICROCODE_FILE=1; \ + fi; \ + done; \ + if [ -n "$$NO_MICROCODE_FILE" ]; then \ + if [ -z "$(CONFIG_USE_BLOBS)" ] && [ -n "$(CONFIG_CPU_MICROCODE_CBFS_DEFAULT_BINS)" ]; then \ + echo "Try enabling binary-only repository in Kconfig 'General setup' menu."; \ + fi; \ + false; \ + fi + $(if $(cpu_microcode_bins),,false) # fail if no file is given at all + @printf " MICROCODE $(subst $(obj)/,,$(@))\n" + @echo $(cpu_microcode_bins) + cat $(cpu_microcode_bins) > $@ + +cpu_microcode_blob.bin-file ?= $(obj)/cpu_microcode_blob.bin +cpu_microcode_blob.bin-type := microcode +# The AMD LPC SPI DMA controller requires source files to be 64 byte aligned. +ifeq ($(CONFIG_SOC_AMD_COMMON_BLOCK_LPC_SPI_DMA),y) +cpu_microcode_blob.bin-align := 64 +else +cpu_microcode_blob.bin-align := 16 +endif + +ifneq ($(CONFIG_CPU_MICROCODE_CBFS_LOC),) +cpu_microcode_blob.bin-COREBOOT-position := $(CONFIG_CPU_MICROCODE_CBFS_LOC) +endif |