From f5ca922c879995a151f4ffefd52bfff34fee21ca Mon Sep 17 00:00:00 2001 From: Nico Huber Date: Thu, 29 Nov 2018 17:05:32 +0100 Subject: Untangle CBFS microcode updates The option to specify a binary file name was added later for platforms that do not provide microcode updates in our blobs repository. Alas, it wasn't visible what platforms these are. And if you specified a file for a platform that already had one, they were all included together. Make it visible which platforms don't provide binaries with the new con- figs MICROCODE_BLOB_NOT_IN_BLOB_REPO, MICROCODE_BLOB_NOT_HOOKED_UP and MICROCODE_BLOB_UNDISCLOSED. Based on that we can decide if we want to include binaries by default or explicitly show that no files are inclu- ded (default to CPU_MICROCODE_CBFS_NONE). Also split CPU_MICROCODE_CBFS_GENERATE into the more explicit CPU_MICROCODE_CBFS_DEFAULT_BINS and CPU_MICROCODE_CBFS_EXTERNAL_BINS. And clean up the visibility of options: Don't show CBFS related options on platforms that don't support it and don't show external file options if the platform uses special rules for multiple files (CPU_MICROCODE_ MULTIPLE_FILES). Change-Id: Ib403402e240d3531640a62ce93b7a93b4ef6ca5e Signed-off-by: Nico Huber Reviewed-on: https://review.coreboot.org/c/29934 Reviewed-by: Arthur Heymans Reviewed-by: Angel Pons Tested-by: build bot (Jenkins) --- src/cpu/Kconfig | 70 ++++++++++++++++++++------ src/cpu/Makefile.inc | 12 +++-- src/cpu/amd/family_10h-family_15h/Kconfig | 2 +- src/cpu/amd/family_10h-family_15h/Makefile.inc | 4 +- src/cpu/intel/fsp_model_406dx/Kconfig | 1 + src/cpu/intel/microcode/Makefile.inc | 2 - 6 files changed, 67 insertions(+), 24 deletions(-) (limited to 'src/cpu') diff --git a/src/cpu/Kconfig b/src/cpu/Kconfig index a7cb99e4b3..f98ce6d0eb 100644 --- a/src/cpu/Kconfig +++ b/src/cpu/Kconfig @@ -84,14 +84,43 @@ config USES_MICROCODE_HEADER_FILES This is selected by a board or chipset to set the default for the microcode source choice to a list of external microcode headers +config MICROCODE_BLOB_NOT_IN_BLOB_REPO + bool + help + Selected by platforms that don't maintain microcode updates in the + blobs repo yet. + +config MICROCODE_BLOB_NOT_HOOKED_UP + bool + help + Selected by platforms that haven't hooked microcode updates up yet. + +config MICROCODE_BLOB_UNDISCLOSED + bool + help + Selected by work-in-progress platforms that don't have microcode + updates available yet. + +config USE_CPU_MICROCODE_CBFS_BINS + bool + help + Automatically selected below to add binary microcode files + (`cpu_microcode_bins` in the makefiles) to CBFS. + choice prompt "Include CPU microcode in CBFS" if ARCH_X86 default CPU_MICROCODE_CBFS_EXTERNAL_HEADER if USES_MICROCODE_HEADER_FILES - default CPU_MICROCODE_CBFS_GENERATE if SUPPORT_CPU_UCODE_IN_CBFS && USE_BLOBS - default CPU_MICROCODE_CBFS_NONE if !SUPPORT_CPU_UCODE_IN_CBFS + default CPU_MICROCODE_CBFS_NONE if MICROCODE_BLOB_NOT_IN_BLOB_REPO || \ + MICROCODE_BLOB_NOT_HOOKED_UP || \ + MICROCODE_BLOB_UNDISCLOSED + depends on SUPPORT_CPU_UCODE_IN_CBFS -config CPU_MICROCODE_CBFS_GENERATE +config CPU_MICROCODE_CBFS_DEFAULT_BINS bool "Generate from tree" + select USE_CPU_MICROCODE_CBFS_BINS + depends on !(MICROCODE_BLOB_NOT_IN_BLOB_REPO || \ + MICROCODE_BLOB_NOT_HOOKED_UP || \ + MICROCODE_BLOB_UNDISCLOSED) help Select this option if you want microcode updates to be assembled when building coreboot and included in the final image as a separate CBFS @@ -102,8 +131,27 @@ config CPU_MICROCODE_CBFS_GENERATE If unsure, select this option. +config CPU_MICROCODE_CBFS_EXTERNAL_BINS + bool "Include external microcode binary" + select USE_CPU_MICROCODE_CBFS_BINS + depends on !CPU_MICROCODE_MULTIPLE_FILES + help + Select this option if you want to include external binary files + in the CPUs native format. They will be included as a separate + file in CBFS. + + A word of caution: only select this option if you are sure the + microcode that you have is newer than the microcode shipping with + coreboot. + + The microcode file may be removed from the ROM image at a later + time with cbfstool, if desired. + + If unsure, and applicable, select "Generate from tree" + config CPU_MICROCODE_CBFS_EXTERNAL_HEADER bool "Include external microcode header files" + depends on !CPU_MICROCODE_MULTIPLE_FILES help Select this option if you want to include external c header files containing the CPU microcode. This will be included as a separate @@ -116,25 +164,17 @@ config CPU_MICROCODE_CBFS_EXTERNAL_HEADER The microcode file may be removed from the ROM image at a later time with cbfstool, if desired. - If unsure, select "Generate from tree" + If unsure, and applicable, select "Generate from tree" config CPU_MICROCODE_CBFS_NONE bool "Do not include microcode updates" help Select this option if you do not want CPU microcode included in CBFS. - Note that for some CPUs, the microcode is hard-coded into the source - tree and is not loaded from CBFS. In this case, microcode will still - be updated. There is a push to move all microcode to CBFS, but this - change is not implemented for all CPUs. - - This option currently applies to: - - Intel SandyBridge/IvyBridge - - VIA Nano Microcode may be added to the ROM image at a later time with cbfstool, if desired. - If unsure, select "Generate from tree" + If unsure, and applicable, select "Generate from tree" The GOOD: Microcode updates intend to solve issues that have been discovered @@ -164,8 +204,6 @@ endchoice config CPU_MICROCODE_MULTIPLE_FILES bool - default n - depends on CPU_MICROCODE_CBFS_GENERATE help Select this option to install separate microcode container files into CBFS instead of using the traditional monolithic microcode file format. @@ -179,7 +217,7 @@ config CPU_MICROCODE_HEADER_FILES config CPU_UCODE_BINARIES string "Microcode binary path and filename" - depends on CPU_MICROCODE_CBFS_GENERATE + depends on CPU_MICROCODE_CBFS_EXTERNAL_BINS default "" help Some platforms have microcode in the blobs directory, and these can diff --git a/src/cpu/Makefile.inc b/src/cpu/Makefile.inc index 72fc29c1e0..66ee2f9169 100644 --- a/src/cpu/Makefile.inc +++ b/src/cpu/Makefile.inc @@ -17,7 +17,7 @@ $(eval $(call create_class_compiler,cpu_microcode,x86_32)) ################################################################################ ifneq ($(CONFIG_CPU_MICROCODE_MULTIPLE_FILES), y) -cbfs-files-$(CONFIG_CPU_MICROCODE_CBFS_GENERATE) += cpu_microcode_blob.bin +cbfs-files-$(CONFIG_USE_CPU_MICROCODE_CBFS_BINS) += cpu_microcode_blob.bin endif ifeq ($(CONFIG_CPU_MICROCODE_CBFS_EXTERNAL_HEADER),y) @@ -29,6 +29,11 @@ $(objgenerated)/microcode.bin: $(call strip_quotes,$(CONFIG_CPU_MICROCODE_HEADER util/scripts/ucode_h_to_bin.sh $(objgenerated)/microcode.bin $(CONFIG_CPU_MICROCODE_HEADER_FILES) endif +ifeq ($(CONFIG_CPU_MICROCODE_CBFS_EXTERNAL_BINS),y) +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 @@ -44,14 +49,15 @@ $(obj)/cpu_microcode_blob.bin: $$(wildcard $$(cpu_microcode_bins)) fi; \ done; \ if [ -n "$$NO_MICROCODE_FILE" ]; then \ - if [ -z "$(CONFIG_USE_BLOBS)" ] && [ -n "$(CONFIG_CPU_MICROCODE_CBFS_GENERATE)" ]; 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 $^,,false) # fail if no file is given at all @printf " MICROCODE $(subst $(obj)/,,$(@))\n" @echo $(cpu_microcode_bins) - cat /dev/null $+ > $@ + cat $^ > $@ cpu_microcode_blob.bin-file ?= $(obj)/cpu_microcode_blob.bin cpu_microcode_blob.bin-type := microcode diff --git a/src/cpu/amd/family_10h-family_15h/Kconfig b/src/cpu/amd/family_10h-family_15h/Kconfig index cd3db0e420..8ff685f0c1 100644 --- a/src/cpu/amd/family_10h-family_15h/Kconfig +++ b/src/cpu/amd/family_10h-family_15h/Kconfig @@ -9,7 +9,7 @@ config CPU_AMD_MODEL_10XXX select UDELAY_LAPIC select HAVE_MONOTONIC_TIMER select SUPPORT_CPU_UCODE_IN_CBFS - select CPU_MICROCODE_MULTIPLE_FILES if !CPU_MICROCODE_CBFS_NONE + select CPU_MICROCODE_MULTIPLE_FILES select ACPI_HUGE_LOWMEM_BACKUP if CPU_AMD_MODEL_10XXX diff --git a/src/cpu/amd/family_10h-family_15h/Makefile.inc b/src/cpu/amd/family_10h-family_15h/Makefile.inc index 2ed76e1e1f..7035323026 100644 --- a/src/cpu/amd/family_10h-family_15h/Makefile.inc +++ b/src/cpu/amd/family_10h-family_15h/Makefile.inc @@ -15,11 +15,11 @@ ramstage-y += monotonic_timer.c ramstage-$(CONFIG_HAVE_ACPI_TABLES) += powernow_acpi.c # Microcode for Family 10h, 11h, 12h, and 14h -cbfs-files-$(CONFIG_CPU_MICROCODE_MULTIPLE_FILES) += microcode_amd.bin +cbfs-files-$(CONFIG_CPU_MICROCODE_CBFS_DEFAULT_BINS) += microcode_amd.bin microcode_amd.bin-file := 3rdparty/blobs/cpu/amd/family_10h-family_14h/microcode_amd.bin microcode_amd.bin-type := microcode # Microcode for Family 15h -cbfs-files-$(CONFIG_CPU_MICROCODE_MULTIPLE_FILES) += microcode_amd_fam15h.bin +cbfs-files-$(CONFIG_CPU_MICROCODE_CBFS_DEFAULT_BINS) += microcode_amd_fam15h.bin microcode_amd_fam15h.bin-file := 3rdparty/blobs/cpu/amd/family_15h/microcode_amd_fam15h.bin microcode_amd_fam15h.bin-type := microcode diff --git a/src/cpu/intel/fsp_model_406dx/Kconfig b/src/cpu/intel/fsp_model_406dx/Kconfig index 4c79b239b6..79658f9817 100644 --- a/src/cpu/intel/fsp_model_406dx/Kconfig +++ b/src/cpu/intel/fsp_model_406dx/Kconfig @@ -29,6 +29,7 @@ config CPU_SPECIFIC_OPTIONS select SSE2 select UDELAY_LAPIC select SUPPORT_CPU_UCODE_IN_CBFS + select MICROCODE_BLOB_NOT_IN_BLOB_REPO select PARALLEL_CPU_INIT select TSC_SYNC_MFENCE select LAPIC_MONOTONIC_TIMER diff --git a/src/cpu/intel/microcode/Makefile.inc b/src/cpu/intel/microcode/Makefile.inc index b56e6a7e79..f589430771 100644 --- a/src/cpu/intel/microcode/Makefile.inc +++ b/src/cpu/intel/microcode/Makefile.inc @@ -4,5 +4,3 @@ ################################################################################ ramstage-$(CONFIG_SUPPORT_CPU_UCODE_IN_CBFS) += microcode.c romstage-$(CONFIG_SUPPORT_CPU_UCODE_IN_CBFS) += microcode.c - -cpu_microcode_bins += $(call strip_quotes,$(CONFIG_CPU_UCODE_BINARIES)) -- cgit v1.2.3