| ## SPDX-License-Identifier: GPL-2.0-only |
| |
| ################################################################################ |
| ## Subdirectories |
| ################################################################################ |
| subdirs-y += amd |
| subdirs-y += armltd |
| subdirs-y += intel |
| 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 |