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author | Alexandru Gagniuc <mr.nuke.me@gmail.com> | 2012-07-20 00:11:21 -0500 |
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committer | Alexandru Gagniuc <mr.nuke.me@gmail.com> | 2012-09-05 03:40:47 +0200 |
commit | 00b579a4478431dbfcef154ec80f5aa7d08d6529 (patch) | |
tree | 10ebe6f9b87dbf6dfc0f05a830da48060dad4b41 /src/arch/x86 | |
parent | eb1d39bac4d3638d41fc38274ae7a133d7b5c6f2 (diff) | |
download | coreboot-00b579a4478431dbfcef154ec80f5aa7d08d6529.tar.xz |
buildsystem: Make CPU microcode updating more configurable
This patch aims to improve the microcode in CBFS handling that was
brought by the last patches from Stefan and the Chromium team.
Choices in Kconfig
- 1) Generate microcode from tree (default)
- 2) Include external microcode file
- 3) Do not put microcode in CBFS
The idea is to give the user full control over including non-free
blobs in the final ROM image.
MICROCODE_INCLUDE_PATH Kconfig variable is eliminated. Microcode
is handled by a special class, cpu_microcode, as such:
cpu_microcode-y += microcode_file.c
MICROCODE_IN_CBFS should, in the future, be eliminated. Right now it is
needed by intel microcode updating. Once all intel cpus are converted to
cbfs updating, this variable can go away.
These files are then compiled and assembled into a binary CBFS file.
The advantage of doing it this way versus the current method is that
1) The rule is CPU-agnostic
2) Gives user more control over if and how to include microcode blobs
3) The rules for building the microcode binary are kept in
src/cpu/Makefile.inc, and thus would not clobber the other makefiles,
which are already overloaded and very difficult to navigate.
Change-Id: I38d0c9851691aa112e93031860e94895857ebb76
Signed-off-by: Alexandru Gagniuc <mr.nuke.me@gmail.com>
Reviewed-on: http://review.coreboot.org/1245
Tested-by: build bot (Jenkins)
Reviewed-by: Anton Kochkov <anton.kochkov@gmail.com>
Reviewed-by: Patrick Georgi <patrick@georgi-clan.de>
Diffstat (limited to 'src/arch/x86')
-rw-r--r-- | src/arch/x86/Makefile.inc | 28 |
1 files changed, 12 insertions, 16 deletions
diff --git a/src/arch/x86/Makefile.inc b/src/arch/x86/Makefile.inc index 810e168895..c58f3be1b7 100644 --- a/src/arch/x86/Makefile.inc +++ b/src/arch/x86/Makefile.inc @@ -1,6 +1,8 @@ +################################################################################ ## ## This file is part of the coreboot project. ## +## Copyright (C) 2012 Alexandru Gagniuc <mr.nuke.me@gmail.com> ## Copyright (C) 2009-2010 coresystems GmbH ## Copyright (C) 2009 Ronald G. Minnich ## @@ -17,8 +19,8 @@ ## along with this program; if not, write to the Free Software ## Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA ## +################################################################################ -####################################################################### # Take care of subdirectories subdirs-y += boot # subdirs-y += init @@ -34,13 +36,7 @@ cmos_layout.bin-type = 0x01aa OPTION_TABLE_H:=$(obj)/option_table.h endif -ifeq ($(CONFIG_MICROCODE_IN_CBFS),y) -cbfs-files-y += microcode_blob.bin -microcode_blob.bin-file = $(obj)/microcode_blob.bin -microcode_blob.bin-type = 0x53 -endif - -####################################################################### +################################################################################ # Build the final rom image COREBOOT_ROM_DEPENDENCIES:= ifeq ($(CONFIG_PAYLOAD_ELF),y) @@ -125,7 +121,7 @@ cbfs-files-$(CONFIG_BOOTSPLASH) += bootsplash.jpg bootsplash.jpg-file := $(call strip_quotes,$(CONFIG_BOOTSPLASH_FILE)) bootsplash.jpg-type := bootsplash -####################################################################### +################################################################################ # i386 specific tools NVRAMTOOL:=$(objutil)/nvramtool/nvramtool @@ -137,7 +133,7 @@ $(obj)/cmos_layout.bin: $(NVRAMTOOL) $(top)/src/mainboard/$(MAINBOARDDIR)/cmos.l @printf " OPTION $(subst $(obj)/,,$(@))\n" $(NVRAMTOOL) -y $(top)/src/mainboard/$(MAINBOARDDIR)/cmos.layout -L $@ -####################################################################### +################################################################################ # Common recipes for all stages $(objcbfs)/%.bin: $(objcbfs)/%.elf @@ -152,7 +148,7 @@ $(objcbfs)/%.elf: $(objcbfs)/%.debug $(OBJCOPY) --add-gnu-debuglink=$< $@.tmp mv $@.tmp $@ -####################################################################### +################################################################################ # Build the coreboot_ram (stage 2) $(objcbfs)/coreboot_ram.debug: $(objgenerated)/coreboot_ram.o $(src)/arch/x86/coreboot_ram.ld @@ -176,7 +172,7 @@ $(objgenerated)/ramstage.a: $$(ramstage-objs) rm -f $@ $(AR) cr $@ $^ -####################################################################### +################################################################################ # Ramstage for AP CPU (AMD K8, obsolete?) $(objcbfs)/coreboot_ap.debug: $(objgenerated)/coreboot_ap.o $(src)/arch/x86/init/ldscript_apc.lb @@ -187,7 +183,7 @@ $(objgenerated)/coreboot_ap.o: $(src)/mainboard/$(MAINBOARDDIR)/ap_romstage.c $( @printf " CC $(subst $(obj)/,,$(@))\n" $(CC) -MMD $(CFLAGS) -I$(src) -D__PRE_RAM__ -I. -I$(obj) -c $< -o $@ -####################################################################### +################################################################################ # done crt0s = $(src)/arch/x86/init/prologue.inc @@ -268,7 +264,7 @@ ifeq ($(CONFIG_HAVE_BUS_CONFIG),y) ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/get_bus_conf.c endif -####################################################################### +################################################################################ # Build the final rom image $(obj)/coreboot.pre: $(objcbfs)/romstage_xip.elf $(obj)/coreboot.pre1 $(CBFSTOOL) @@ -278,7 +274,7 @@ $(obj)/coreboot.pre: $(objcbfs)/romstage_xip.elf $(obj)/coreboot.pre1 $(CBFSTOOL $(CONFIG_CBFS_PREFIX)/romstage x $(shell cat $(objcbfs)/base_xip.txt) mv $@.tmp $@ -####################################################################### +################################################################################ # Build the bootblock bootblock_lds = $(src)/arch/x86/init/ldscript_failover.lb @@ -335,7 +331,7 @@ else $(CC) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(objgenerated)/bootblock.ld $< endif -####################################################################### +################################################################################ # Build the romstage $(objcbfs)/romstage_null.debug: $$(romstage-objs) $(objgenerated)/romstage_null.ld |