coreboot August 2012

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Patch merged into coreboot/master: cb4673e AMD S3: Remove the hardcoded volatile position
by gerrit＠coreboot.org 05 Aug '12

05 Aug '12

the following patch was just integrated into master: commit cb4673e961ca3e35564053cfc3896b476b9b8271 Author: zbao <fishbaozi(a)gmail.com> Date: Sun Aug 5 11:46:23 2012 +0800 AMD S3: Remove the hardcoded volatile position Change-Id: I4bcf3f3435f0ba487955d14ed1b010fd94b9f625 Signed-off-by: Zheng Bao <zheng.bao(a)amd.com> Signed-off-by: zbao <fishbaozi(a)gmail.com> Build-Tested: build bot (Jenkins) at Sun Aug 5 06:24:42 2012, giving +1 Reviewed-By: Alexandru Gagniuc <mr.nuke.me(a)gmail.com> at Sun Aug 5 06:34:14 2012, giving +2 See http://review.coreboot.org/1408 for details. -gerrit

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Patch set updated for coreboot: eea8da7 AMD f15: Change multiply ONE_MB to bit shifting (Propagation)
by Zheng Bao 05 Aug '12

05 Aug '12

Zheng Bao (zheng.bao(a)amd.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/1405 -gerrit commit eea8da7be97e90b03adecba4b5a371eebc87a60d Author: zbao <fishbaozi(a)gmail.com> Date: Fri Aug 3 16:06:08 2012 +0800 AMD f15: Change multiply ONE_MB to bit shifting (Propagation) Apply the change http://review.coreboot.org/1263 to family15 northbridge. Change-Id: If1109f20ffd833a716e092c5e4f6f16ee6b968c7 Signed-off-by: Zheng Bao <zheng.bao(a)amd.com> Signed-off-by: zbao <fishbaozi(a)gmail.com> [km: rebased] Signed-off-by: Kyösti Mälkki <kyosti.malkki(a)gmail.com> --- src/northbridge/amd/agesa/family15/northbridge.c | 14 +++++++------- 1 files changed, 7 insertions(+), 7 deletions(-) diff --git a/src/northbridge/amd/agesa/family15/northbridge.c b/src/northbridge/amd/agesa/family15/northbridge.c index d7e9521..d9a153b 100644 --- a/src/northbridge/amd/agesa/family15/northbridge.c +++ b/src/northbridge/amd/agesa/family15/northbridge.c @@ -627,7 +627,7 @@ static struct hw_mem_hole_info get_hw_mem_hole_info(void) } #endif -#define ONE_MB 0x100000 +#define ONE_MB_SHIFT 20 static void setup_uma_memory(void) { @@ -654,13 +654,13 @@ static void setup_uma_memory(void) * >=1G 256M * <1G 64M */ - sys_mem = msr.lo + 16 * ONE_MB; // Ignore 16MB allocated for C6 when finding UMA size - if ((msr2.hi & 0x0000000F) || (sys_mem >= 2048 * ONE_MB)) { - uma_memory_size = 512 * ONE_MB; - } else if (sys_mem >= 1024 * ONE_MB) { - uma_memory_size = 256 * ONE_MB; + sys_mem = msr.lo + (16 << ONE_MB_SHIFT); // Ignore 16MB allocated for C6 when finding UMA size + if ((msr2.hi & 0x0000000F) || (sys_mem >= 2048 << ONE_MB_SHIFT)) { + uma_memory_size = 512 << ONE_MB_SHIFT; + } else if (sys_mem >= 1024 << ONE_MB_SHIFT) { + uma_memory_size = 256 << ONE_MB_SHIFT; } else { - uma_memory_size = 64 * ONE_MB; + uma_memory_size = 64 << ONE_MB_SHIFT; } uma_memory_base = msr.lo - uma_memory_size; /* TOP_MEM1 */

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Patch set updated for coreboot: 634d4a4 AMD f15: Change multiply ONE_MB to bit shifting (Propagation)
by Kyösti Mälkki 05 Aug '12

05 Aug '12

Kyösti Mälkki (kyosti.malkki(a)gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/1405 -gerrit commit 634d4a43cc36a51904d1b681064a8ea3d1de1252 Author: zbao <fishbaozi(a)gmail.com> Date: Fri Aug 3 16:06:08 2012 +0800 AMD f15: Change multiply ONE_MB to bit shifting (Propagation) Apply the change http://review.coreboot.org/1263 to family15 northbridge. Change-Id: If1109f20ffd833a716e092c5e4f6f16ee6b968c7 Signed-off-by: Zheng Bao <zheng.bao(a)amd.com> Signed-off-by: zbao <fishbaozi(a)gmail.com> [km: rebased] Signed-off-by: Kyösti Mälkki <kyosti.malkki(a)gmail.com> --- src/northbridge/amd/agesa/family15/northbridge.c | 14 +++++++------- 1 files changed, 7 insertions(+), 7 deletions(-) diff --git a/src/northbridge/amd/agesa/family15/northbridge.c b/src/northbridge/amd/agesa/family15/northbridge.c index d7e9521..d9a153b 100644 --- a/src/northbridge/amd/agesa/family15/northbridge.c +++ b/src/northbridge/amd/agesa/family15/northbridge.c @@ -627,7 +627,7 @@ static struct hw_mem_hole_info get_hw_mem_hole_info(void) } #endif -#define ONE_MB 0x100000 +#define ONE_MB_SHIFT 20 static void setup_uma_memory(void) { @@ -654,13 +654,13 @@ static void setup_uma_memory(void) * >=1G 256M * <1G 64M */ - sys_mem = msr.lo + 16 * ONE_MB; // Ignore 16MB allocated for C6 when finding UMA size - if ((msr2.hi & 0x0000000F) || (sys_mem >= 2048 * ONE_MB)) { - uma_memory_size = 512 * ONE_MB; - } else if (sys_mem >= 1024 * ONE_MB) { - uma_memory_size = 256 * ONE_MB; + sys_mem = msr.lo + (16 << ONE_MB_SHIFT); // Ignore 16MB allocated for C6 when finding UMA size + if ((msr2.hi & 0x0000000F) || (sys_mem >= 2048 << ONE_MB_SHIFT)) { + uma_memory_size = 512 << ONE_MB_SHIFT; + } else if (sys_mem >= 1024 << ONE_MB_SHIFT) { + uma_memory_size = 256 << ONE_MB_SHIFT; } else { - uma_memory_size = 64 * ONE_MB; + uma_memory_size = 64 << ONE_MB_SHIFT; } uma_memory_base = msr.lo - uma_memory_size; /* TOP_MEM1 */

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Patch set updated for coreboot: cb4673e AMD S3: Remove the hardcoded volatile position
by Zheng Bao 05 Aug '12

05 Aug '12

Zheng Bao (zheng.bao(a)amd.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/1408 -gerrit commit cb4673e961ca3e35564053cfc3896b476b9b8271 Author: zbao <fishbaozi(a)gmail.com> Date: Sun Aug 5 11:46:23 2012 +0800 AMD S3: Remove the hardcoded volatile position Change-Id: I4bcf3f3435f0ba487955d14ed1b010fd94b9f625 Signed-off-by: Zheng Bao <zheng.bao(a)amd.com> Signed-off-by: zbao <fishbaozi(a)gmail.com> --- src/cpu/amd/agesa/s3_resume.h | 6 +++--- src/southbridge/amd/Kconfig | 5 +++++ src/southbridge/amd/Makefile.inc | 4 ++-- 3 files changed, 10 insertions(+), 5 deletions(-) diff --git a/src/cpu/amd/agesa/s3_resume.h b/src/cpu/amd/agesa/s3_resume.h index 16ec411..10bc826 100644 --- a/src/cpu/amd/agesa/s3_resume.h +++ b/src/cpu/amd/agesa/s3_resume.h @@ -20,9 +20,9 @@ #ifndef S3_RESUME_H #define S3_RESUME_H -#define S3_DATA_NONVOLATILE_POS 0xFFFF7000 -#define S3_DATA_VOLATILE_POS 0xFFFF0000 -#define S3_DATA_MTRR_POS 0xFFFF6000 +#define S3_DATA_NONVOLATILE_POS (CONFIG_S3_VOLATILE_POS + 0x7000) +#define S3_DATA_VOLATILE_POS CONFIG_S3_VOLATILE_POS +#define S3_DATA_MTRR_POS (CONFIG_S3_VOLATILE_POS + 0x6000) typedef enum { S3DataTypeNonVolatile=0, ///< NonVolatile Data Type diff --git a/src/southbridge/amd/Kconfig b/src/southbridge/amd/Kconfig index 867afca..23f6c06 100644 --- a/src/southbridge/amd/Kconfig +++ b/src/southbridge/amd/Kconfig @@ -14,3 +14,8 @@ source src/southbridge/amd/sb800/Kconfig source src/southbridge/amd/cimx/Kconfig source src/southbridge/amd/agesa/Kconfig source src/southbridge/amd/sr5650/Kconfig + +# This can be overriden by mainboard/Kconfig +config S3_VOLATILE_POS + hex + default 0xFFFF0000 diff --git a/src/southbridge/amd/Makefile.inc b/src/southbridge/amd/Makefile.inc index 9709715..d2b9b65 100644 --- a/src/southbridge/amd/Makefile.inc +++ b/src/southbridge/amd/Makefile.inc @@ -20,14 +20,14 @@ ifeq ($(CONFIG_HAVE_ACPI_RESUME), y) ifeq ($(CONFIG_CPU_AMD_AGESA), y) $(obj)/s3.rom: - echo " S3 NVRAM 0xffff0000 (S3 storage area)" + echo " S3 NVRAM $(CONFIG_S3_VOLATILE_POS) (S3 storage area)" # force C locale, so cygwin awk doesn't try to interpret the 0xff below as UTF-8 (or worse) LC_ALL=C awk 'BEGIN {for (i=0; i<32768; i++) {printf "%c", 255}}' > $@.tmp mv $@.tmp $@ cbfs-files-y += s3nv s3nv-file := $(obj)/s3.rom -s3nv-position := 0xffff0000 +s3nv-position := $(CONFIG_S3_VOLATILE_POS) s3nv-type := raw endif # CONFIG_CPU_AMD_AGESA == y

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Patch set updated for coreboot: b86360e Enable ROM cache for payload decompression on all boards
by Alexandru Gagniuc 04 Aug '12

04 Aug '12

Alexandru Gagniuc (mr.nuke.me(a)gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/1147 -gerrit commit b86360e30ae29c2caba6035f5cce3642970a8e17 Author: Kyösti Mälkki <kyosti.malkki(a)gmail.com> Date: Sat Jun 30 11:42:08 2012 +0300 Enable ROM cache for payload decompression on all boards The static size of 8 MB ChromeOS defines for SPI flash would extend over write-protection control MMIO of older LPC/FWH flash, so use a configurable region size instead. Change-Id: Ife6d11a29794bdbf0463911e589e86102e9b897d Signed-off-by: Kyösti Mälkki <kyosti.malkki(a)gmail.com> --- src/cpu/x86/Kconfig | 4 ---- src/cpu/x86/mtrr/mtrr.c | 8 ++++---- src/mainboard/samsung/lumpy/Kconfig | 4 ++++ src/mainboard/samsung/stumpy/Kconfig | 4 ++++ src/vendorcode/google/chromeos/Kconfig | 1 - 5 files changed, 12 insertions(+), 9 deletions(-) diff --git a/src/cpu/x86/Kconfig b/src/cpu/x86/Kconfig index 0eaee2e..9ac7365 100644 --- a/src/cpu/x86/Kconfig +++ b/src/cpu/x86/Kconfig @@ -40,10 +40,6 @@ config LOGICAL_CPUS bool default y -config CACHE_ROM - bool - default n - config SMM_TSEG bool default n diff --git a/src/cpu/x86/mtrr/mtrr.c b/src/cpu/x86/mtrr/mtrr.c index a061b54..252ee30 100644 --- a/src/cpu/x86/mtrr/mtrr.c +++ b/src/cpu/x86/mtrr/mtrr.c @@ -36,7 +36,6 @@ #include <cpu/x86/msr.h> #include <cpu/x86/mtrr.h> #include <cpu/x86/cache.h> -#include <cpu/x86/lapic.h> #include <arch/cpu.h> #include <arch/acpi.h> @@ -484,12 +483,13 @@ void x86_setup_var_mtrrs(unsigned int address_bits, unsigned int above4gb) set_var_mtrr(var_state.reg++, 0, 0, 0, var_state.address_bits); } -#if CONFIG_CACHE_ROM +#if CONFIG_CACHE_ROM_SIZE /* Enable Caching and speculative Reads for the * complete ROM now that we actually have RAM. */ - if (boot_cpu() && (acpi_slp_type != 3)) { - set_var_mtrr(total_mtrrs - 1, (4096 - 8)*1024, 8 * 1024, + if (acpi_slp_type != 3) { + set_var_mtrr(total_mtrrs - 1, (unsigned) CACHE_ROM_BASE>>10, + CONFIG_CACHE_ROM_SIZE>>10, MTRR_TYPE_WRPROT, address_bits); } #endif diff --git a/src/mainboard/samsung/lumpy/Kconfig b/src/mainboard/samsung/lumpy/Kconfig index 0835012..dd1e8d3 100644 --- a/src/mainboard/samsung/lumpy/Kconfig +++ b/src/mainboard/samsung/lumpy/Kconfig @@ -40,6 +40,10 @@ config MAX_CPUS int default 8 +config CACHE_ROM_SIZE + hex + default 0x800000 + config VGA_BIOS_FILE string default "pci8086,0106.rom" diff --git a/src/mainboard/samsung/stumpy/Kconfig b/src/mainboard/samsung/stumpy/Kconfig index 18094cf..ff7aaa2 100644 --- a/src/mainboard/samsung/stumpy/Kconfig +++ b/src/mainboard/samsung/stumpy/Kconfig @@ -39,6 +39,10 @@ config MAX_CPUS int default 8 +config CACHE_ROM_SIZE + hex + default 0x800000 + config VGA_BIOS_FILE string default "pci8086,0106.rom" diff --git a/src/vendorcode/google/chromeos/Kconfig b/src/vendorcode/google/chromeos/Kconfig index 179bbb1..f098912 100644 --- a/src/vendorcode/google/chromeos/Kconfig +++ b/src/vendorcode/google/chromeos/Kconfig @@ -20,7 +20,6 @@ config CHROMEOS bool default n select TPM - select CACHE_ROM help Enable ChromeOS specific features like the GPIO sub table in the coreboot table. NOTE: Enabling this option on an unsupported

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Patch set updated for coreboot: 01d99d2 buildsystem: Make CPU microcode updating more configurable
by Alexandru Gagniuc 04 Aug '12

04 Aug '12

Alexandru Gagniuc (mr.nuke.me(a)gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/1245 -gerrit commit 01d99d2354d17b168b1ff49939d0bc1d53570ca0 Author: Alexandru Gagniuc <mr.nuke.me(a)gmail.com> Date: Fri Jul 20 00:11:21 2012 -0500 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(a)gmail.com> --- Makefile.inc | 2 +- src/arch/x86/Makefile.inc | 28 ++++----- src/cpu/Kconfig | 88 ++++++++++++++++++++++++++- src/cpu/Makefile.inc | 37 ++++++++++++ src/cpu/intel/microcode/Makefile.inc | 20 ++----- src/cpu/intel/microcode/microcode.c | 8 +- src/cpu/intel/microcode/microcode_blob.c | 22 ------- src/cpu/intel/model_206ax/Kconfig | 3 +- src/cpu/intel/model_206ax/Makefile.inc | 2 + src/cpu/intel/model_206ax/microcode_blob.c | 22 +++++++ src/include/cpu/intel/microcode.h | 2 +- 11 files changed, 169 insertions(+), 65 deletions(-) diff --git a/Makefile.inc b/Makefile.inc index 083d423..d06a24d 100644 --- a/Makefile.inc +++ b/Makefile.inc @@ -59,7 +59,7 @@ subdirs-y += site-local ####################################################################### # Add source classes and their build options -classes-y := ramstage romstage driver smm +classes-y := ramstage romstage driver smm cpu_microcode romstage-c-ccopts:=-D__PRE_RAM__ romstage-S-ccopts:=-D__PRE_RAM__ diff --git a/src/arch/x86/Makefile.inc b/src/arch/x86/Makefile.inc index 306f239..3b27fe3 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(a)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) @@ -123,7 +119,7 @@ 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 @@ -135,7 +131,7 @@ $(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 @@ -150,7 +146,7 @@ $(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 @@ -174,7 +170,7 @@ $(objgenerated)/ramstage.a: $$(ramstage-objs) rm -f $@ $(AR) cr $@ $^ -####################################################################### +################################################################################ # Ramstage for AP CPU (AMD K8, obsolete?) $(objcbfs)/coreboot_ap.debug: $(objgenerated)/coreboot_ap.o $(src)/arch/x86/init/ldscript_apc.lb @@ -185,7 +181,7 @@ $(objgenerated)/coreboot_ap.o: $(src)/mainboard/$(MAINBOARDDIR)/ap_romstage.c $( @printf " CC $(subst $(obj)/,,$(@))\n" $(CC) -MMD $(CFLAGS) -I$(src) -D__PRE_RAM__ -I. -I$(obj) -c $< -o $@ -####################################################################### +################################################################################ # done crt0s = $(src)/arch/x86/init/prologue.inc @@ -264,7 +260,7 @@ ifeq ($(CONFIG_HAVE_BUS_CONFIG),y) ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/get_bus_conf.c endif -####################################################################### +################################################################################ # Build the final rom image $(obj)/coreboot.pre: $(objcbfs)/romstage_xip.elf $(obj)/coreboot.pre1 $(CBFSTOOL) @@ -274,7 +270,7 @@ $(obj)/coreboot.pre: $(objcbfs)/romstage_xip.elf $(obj)/coreboot.pre1 $(CBFSTOOL $(CONFIG_CBFS_PREFIX)/romstage x $(shell cat $(objcbfs)/base_xip.txt) mv $@.tmp $@ -####################################################################### +################################################################################ # Build the bootblock bootblock_lds = $(src)/arch/x86/init/ldscript_failover.lb @@ -331,7 +327,7 @@ else $(CC) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(objgenerated)/bootblock.ld $< endif -####################################################################### +################################################################################ # Build the romstage $(objcbfs)/romstage_null.debug: $$(romstage-objs) $(objgenerated)/romstage_null.ld diff --git a/src/cpu/Kconfig b/src/cpu/Kconfig index baf686e..1ed721f 100644 --- a/src/cpu/Kconfig +++ b/src/cpu/Kconfig @@ -62,10 +62,90 @@ config SSE2 streaming SIMD instructions. Some parts of coreboot can be built with more efficient code if SSE2 instructions are available. -config MICROCODE_IN_CBFS - bool "Look for microcode in CBFS" +endif # ARCH_X86 + +config CPU_MICROCODE_IN_CBFS + bool default n + +choice + prompt "Include CPU microcode in CBFS" + default CPU_MICROCODE_CBFS_GENERATE if CPU_MICROCODE_IN_CBFS + default CPU_MICROCODE_CBFS_NONE if !CPU_MICROCODE_IN_CBFS + +config CPU_MICROCODE_CBFS_GENERATE + bool "Generate from tree" help - Load microcode updates from CBFS instead of compiling them in. + Select this option if you want microcode updates to be assembled when + building coreboot and included in the final image as a separate CBFS + file. Microcode will not be hard-coded into ramstage. -endif # ARCH_X86 + The microcode file and may be removed from the ROM image at a later + time with cbfstool, if desired. + + If unsure, select this option. + +config CPU_MICROCODE_CBFS_EXTERNAL + bool "Include external microcode file" + help + Select this option if you want to include an external file containing + the CPU microcode. This 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 and may be removed from the ROM image at a later + time with cbfstool, if desired. + + If unsure, select "Generate from tree" + +config CPU_MICROCODE_FILE + string "Path and filename of CPU microcode" + depends on CPU_MICROCODE_CBFS_EXTERNAL + default "cpu_microcode.bin" + help + The path and filename of the file containing the CPU microcode. + +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" + + The GOOD: + Microcode updates intend to solve issues that have been discovered + after CPU production. The expected effect is that systems work as + intended with the updated microcode, but we have also seen cases where + issues were solved by not applying microcode updates. + + The BAD: + Note that some operating system include these same microcode patches, + so you may need to also disable microcode updates in your operating + system for this option to have an effect. + + The UGLY: + A word of CAUTION: some CPUs depend on microcode updates to function + correctly. Not updating the microcode may leave the CPU operating at + less than optimal performance, or may cause outright hangups. + There are CPUs where coreboot cannot properly initialize the CPU + without microcode updates + For example, if running with the factory microcode, some Intel + SandyBridge CPUs may hang when enabling CAR, or some VIA Nano CPUs + will hang when changing the frequency. + + Make sure you have a way of flashing the ROM externally before + selecting this option. + +endchoice diff --git a/src/cpu/Makefile.inc b/src/cpu/Makefile.inc index 57273cf..0f32ad4 100644 --- a/src/cpu/Makefile.inc +++ b/src/cpu/Makefile.inc @@ -1,3 +1,40 @@ +################################################################################ +## Subdirectories +################################################################################ subdirs-y += amd subdirs-y += intel subdirs-y += via + +################################################################################ +## Rules for building the microcode blob in CBFS +################################################################################ + +ifneq ($(CONFIG_CPU_MICROCODE_CBFS_NONE), y) + +cbfs-files-y += cpu_microcode_blob.bin + +cpu_microcode_blob.bin-type = 0x53 + +# External microcode file, or are we generating one ? +ifeq ($(CONFIG_CPU_MICROCODE_CBFS_EXTERNAL), y) + cpu_microcode_blob.bin-file = $(CONFIG_CPU_MICROCODE_FILE) +else + cpu_microcode_blob.bin-file = $(obj)/cpu_microcode_blob.bin +endif + +# In case we have more than one "source" (cough) files containing microcodem, we +# Link them together in one large blob, so that we get all the microcode updates +# in one file. This makes it easier for objcopy in the final step. +# The --entry=0 is just here to suppress the LD warning. It does not affect the +# final microcode file. +$(obj)/cpu_microcode_blob.o: $$(cpu_microcode-objs) + @printf " LD $(subst $(obj)/,,$(@))\n" + $(LD) -static --entry=0 $< -o $@ + +# We have a lot of useless data in the large blob, and we are only interested in +# the data section, so we only copy that part to the final microcode file +$(obj)/cpu_microcode_blob.bin: $(obj)/cpu_microcode_blob.o + @printf " MICROCODE $(subst $(obj)/,,$(@))\n" + $(OBJCOPY) -j .data -O binary $< $@ + +endif diff --git a/src/cpu/intel/microcode/Makefile.inc b/src/cpu/intel/microcode/Makefile.inc index f4d0102..22655c9 100644 --- a/src/cpu/intel/microcode/Makefile.inc +++ b/src/cpu/intel/microcode/Makefile.inc @@ -1,15 +1,5 @@ -ramstage-y += microcode.c - - -ifeq ($(CONFIG_MICROCODE_IN_CBFS),y) - -SRC_PATH = src/cpu/intel/microcode -FLAGS = -I $(CONFIG_MICROCODE_INCLUDE_PATH) -include $(obj)/config.h -$(obj)/microcode_blob.o: $(SRC_PATH)/microcode_blob.c - $(CC) $(FLAGS) -MMD -c -o $@ $< - -$(obj)/microcode_blob.bin: $(obj)/microcode_blob.o - objcopy -j .data -O binary $< $@ - --include $(obj)/microcode_blob.d -endif +################################################################################ +## One small file with the awesome super-power of updating the cpu microcode +## directly from CBFS. You have been WARNED!!! +################################################################################ +ramstage-y += microcode.c \ No newline at end of file diff --git a/src/cpu/intel/microcode/microcode.c b/src/cpu/intel/microcode/microcode.c index e84bad9..a4471ca 100644 --- a/src/cpu/intel/microcode/microcode.c +++ b/src/cpu/intel/microcode/microcode.c @@ -28,7 +28,7 @@ #include <cpu/x86/msr.h> #include <cpu/intel/microcode.h> -#if CONFIG_MICROCODE_IN_CBFS +#if CONFIG_CPU_MICROCODE_IN_CBFS #ifdef __PRE_RAM__ #include <arch/cbfs.h> #else @@ -77,7 +77,7 @@ static inline u32 read_microcode_rev(void) return msr.hi; } -#if CONFIG_MICROCODE_IN_CBFS +#if CONFIG_CPU_MICROCODE_IN_CBFS static #endif void intel_update_microcode(const void *microcode_updates) @@ -144,9 +144,9 @@ void intel_update_microcode(const void *microcode_updates) } } -#if CONFIG_MICROCODE_IN_CBFS +#if CONFIG_CPU_MICROCODE_IN_CBFS -#define MICROCODE_CBFS_FILE "microcode_blob.bin" +#define MICROCODE_CBFS_FILE "cpu_microcode_blob.bin" void intel_update_microcode_from_cbfs(void) { diff --git a/src/cpu/intel/microcode/microcode_blob.c b/src/cpu/intel/microcode/microcode_blob.c deleted file mode 100644 index 69238a9..0000000 --- a/src/cpu/intel/microcode/microcode_blob.c +++ /dev/null @@ -1,22 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2012 The ChromiumOS Authors. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -unsigned microcode[] = { -#include <microcode_blob.h> -}; diff --git a/src/cpu/intel/model_206ax/Kconfig b/src/cpu/intel/model_206ax/Kconfig index 9cc6edd..15cbd17 100644 --- a/src/cpu/intel/model_206ax/Kconfig +++ b/src/cpu/intel/model_206ax/Kconfig @@ -12,8 +12,7 @@ config CPU_SPECIFIC_OPTIONS select SSE2 select UDELAY_LAPIC select SMM_TSEG - select MICROCODE_IN_CBFS - #select AP_IN_SIPI_WAIT + select CPU_MICROCODE_IN_CBFS config BOOTBLOCK_CPU_INIT string diff --git a/src/cpu/intel/model_206ax/Makefile.inc b/src/cpu/intel/model_206ax/Makefile.inc index e9b8e6d..6ab4840 100644 --- a/src/cpu/intel/model_206ax/Makefile.inc +++ b/src/cpu/intel/model_206ax/Makefile.inc @@ -5,4 +5,6 @@ ramstage-$(CONFIG_GENERATE_ACPI_TABLES) += acpi.c smm-$(CONFIG_HAVE_SMI_HANDLER) += finalize.c +cpu_microcode-$(CONFIG_CPU_MICROCODE_CBFS_GENERATE) += microcode_blob.c + cpu_incs += $(src)/cpu/intel/model_206ax/cache_as_ram.inc diff --git a/src/cpu/intel/model_206ax/microcode_blob.c b/src/cpu/intel/model_206ax/microcode_blob.c new file mode 100644 index 0000000..c2538e8 --- /dev/null +++ b/src/cpu/intel/model_206ax/microcode_blob.c @@ -0,0 +1,22 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 The ChromiumOS Authors. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +unsigned microcode[] = { +#include "microcode_blob.h" +}; diff --git a/src/include/cpu/intel/microcode.h b/src/include/cpu/intel/microcode.h index 289e919..e9c13f9 100644 --- a/src/include/cpu/intel/microcode.h +++ b/src/include/cpu/intel/microcode.h @@ -21,7 +21,7 @@ #define __CPU__INTEL__MICROCODE__ #ifndef __PRE_RAM__ -#if CONFIG_MICROCODE_IN_CBFS +#if CONFIG_CPU_MICROCODE_IN_CBFS void intel_update_microcode_from_cbfs(void); #else void intel_update_microcode(const void *microcode_updates);

1 0

Patch merged into coreboot/master: 403f4d6 AMD Thatcher: Add BIOS callback hook for getting VBIOS Image
by gerrit＠coreboot.org 04 Aug '12

04 Aug '12

the following patch was just integrated into master: commit 403f4d69942e9d14e381439a8a9a5ad2471568d4 Author: zbao <fishbaozi(a)gmail.com> Date: Fri Aug 3 17:12:45 2012 +0800 AMD Thatcher: Add BIOS callback hook for getting VBIOS Image Apply the change http://review.coreboot.org/1351 to thatcher. Change-Id: I33e7ad0cad2ae06f5934c60939d60a18444aa24e Signed-off-by: Zheng Bao <zheng.bao(a)amd.com> Signed-off-by: zbao <fishbaozi(a)gmail.com> Build-Tested: build bot (Jenkins) at Sat Aug 4 19:24:10 2012, giving +1 Reviewed-By: Ronald G. Minnich <rminnich(a)gmail.com> at Sat Aug 4 19:54:03 2012, giving +2 See http://review.coreboot.org/1407 for details. -gerrit

1 0

Patch set updated for coreboot: 8c292de Technexion TIM5690: drop add_mainboard_resources()
by Alexandru Gagniuc 04 Aug '12

04 Aug '12

Alexandru Gagniuc (mr.nuke.me(a)gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/1396 -gerrit commit 8c292de76fbe2e6495b526627cd1ce7bdf962baf Author: Kyösti Mälkki <kyosti.malkki(a)gmail.com> Date: Thu Aug 2 09:44:14 2012 +0300 Technexion TIM5690: drop add_mainboard_resources() Move the POST display to take place just before jumping the payload, a bit later than before. Change-Id: Ie1d1ff24dc6c1640e25681be7dc5740943c7f112 Signed-off-by: Kyösti Mälkki <kyosti.malkki(a)gmail.com> --- src/mainboard/technexion/tim5690/Kconfig | 1 - src/mainboard/technexion/tim5690/mainboard.c | 9 ++++++--- 2 files changed, 6 insertions(+), 4 deletions(-) diff --git a/src/mainboard/technexion/tim5690/Kconfig b/src/mainboard/technexion/tim5690/Kconfig index 404ddfe..172b478 100644 --- a/src/mainboard/technexion/tim5690/Kconfig +++ b/src/mainboard/technexion/tim5690/Kconfig @@ -17,7 +17,6 @@ config BOARD_SPECIFIC_OPTIONS # dummy select SB_HT_CHAIN_UNITID_OFFSET_ONLY select HAVE_ACPI_TABLES select GFXUMA - select HAVE_MAINBOARD_RESOURCES select BOARD_ROMSIZE_KB_512 select RAMINIT_SYSINFO select QRANK_DIMM_SUPPORT diff --git a/src/mainboard/technexion/tim5690/mainboard.c b/src/mainboard/technexion/tim5690/mainboard.c index 41147cd..b87058c 100644 --- a/src/mainboard/technexion/tim5690/mainboard.c +++ b/src/mainboard/technexion/tim5690/mainboard.c @@ -242,10 +242,13 @@ static void tim5690_enable(device_t dev) set_thermal_config(); } -int add_mainboard_resources(struct lb_memory *mem) +void mainboard_post(u8 value) { - technexion_post_code(LED_MESSAGE_FINISH); - return 0; + switch (value) { + case POST_ENTER_ELF_BOOT: + technexion_post_code(LED_MESSAGE_FINISH); + break; + } } struct chip_operations mainboard_ops = {

1 0

Patch merged into coreboot/master: dd9e9f1 Add a capability for mainboard-specific posting.
by gerrit＠coreboot.org 04 Aug '12

04 Aug '12

the following patch was just integrated into master: commit dd9e9f1786dbdb314ce0c4244dee85357e2ae58a Author: Alexandru Gagniuc <mr.nuke.me(a)gmail.com> Date: Fri Aug 3 13:20:57 2012 -0500 Add a capability for mainboard-specific posting. Some mainboards have really nice capabilities for posting, beyond simple POST cards. Further, some can not use a POST card. This change defines a weak symbol (mainboard_post) that can be overridden by a real mainboard_post function. If, for example, you'd like to do something fancy before the payload starts, you can add this to mainboard.c: void mainboard_post(u8 value) { switch(value){ case POST_TIME_TO_PARTY: some_fancy_lights(); break; } } Maybe the post function should be an entry in the device. We're beginning to over-use weak symbols. BUG=None TEST=Build and boot a google chromebook. Observe that it still works. Use it to drive some pretty lights. Change-Id: I3512d2ec34a66c747287191851c3f68b6a7cc1b2 Signed-off-by: Ronald G. Minnich <rminnich(a)gmail.com> Signed-off-by: Alexandru Gagniuc <mr.nuke.me(a)gmail.com> Build-Tested: build bot (Jenkins) at Fri Aug 3 20:56:15 2012, giving +1 Reviewed-By: Alexandru Gagniuc <mr.nuke.me(a)gmail.com> at Sat Aug 4 19:31:19 2012, giving +2 See http://review.coreboot.org/1397 for details. -gerrit

1 0

Patch set updated for coreboot: f4d450c buildsystem: Make CPU microcode updating more configurable
by Alexandru Gagniuc 04 Aug '12

04 Aug '12

Alexandru Gagniuc (mr.nuke.me(a)gmail.com) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/1245 -gerrit commit f4d450cf2259b260d3393c6d2459a3c1747955c0 Author: Alexandru Gagniuc <mr.nuke.me(a)gmail.com> Date: Fri Jul 20 00:11:21 2012 -0500 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(a)gmail.com> --- Makefile.inc | 2 +- src/arch/x86/Makefile.inc | 28 ++++----- src/cpu/Kconfig | 88 ++++++++++++++++++++++++++- src/cpu/Makefile.inc | 37 ++++++++++++ src/cpu/intel/microcode/Makefile.inc | 20 ++----- src/cpu/intel/microcode/microcode.c | 8 +- src/cpu/intel/microcode/microcode_blob.c | 22 ------- src/cpu/intel/model_206ax/Kconfig | 5 +- src/cpu/intel/model_206ax/Makefile.inc | 2 + src/cpu/intel/model_206ax/microcode_blob.c | 22 +++++++ src/include/cpu/intel/microcode.h | 2 +- 11 files changed, 169 insertions(+), 67 deletions(-) diff --git a/Makefile.inc b/Makefile.inc index 176ff67..4122bc4 100644 --- a/Makefile.inc +++ b/Makefile.inc @@ -59,7 +59,7 @@ subdirs-y += site-local ####################################################################### # Add source classes and their build options -classes-y := ramstage romstage driver smm +classes-y := ramstage romstage driver smm cpu_microcode romstage-c-ccopts:=-D__PRE_RAM__ romstage-S-ccopts:=-D__PRE_RAM__ diff --git a/src/arch/x86/Makefile.inc b/src/arch/x86/Makefile.inc index 306f239..3b27fe3 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(a)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) @@ -123,7 +119,7 @@ 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 @@ -135,7 +131,7 @@ $(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 @@ -150,7 +146,7 @@ $(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 @@ -174,7 +170,7 @@ $(objgenerated)/ramstage.a: $$(ramstage-objs) rm -f $@ $(AR) cr $@ $^ -####################################################################### +################################################################################ # Ramstage for AP CPU (AMD K8, obsolete?) $(objcbfs)/coreboot_ap.debug: $(objgenerated)/coreboot_ap.o $(src)/arch/x86/init/ldscript_apc.lb @@ -185,7 +181,7 @@ $(objgenerated)/coreboot_ap.o: $(src)/mainboard/$(MAINBOARDDIR)/ap_romstage.c $( @printf " CC $(subst $(obj)/,,$(@))\n" $(CC) -MMD $(CFLAGS) -I$(src) -D__PRE_RAM__ -I. -I$(obj) -c $< -o $@ -####################################################################### +################################################################################ # done crt0s = $(src)/arch/x86/init/prologue.inc @@ -264,7 +260,7 @@ ifeq ($(CONFIG_HAVE_BUS_CONFIG),y) ramstage-srcs += src/mainboard/$(MAINBOARDDIR)/get_bus_conf.c endif -####################################################################### +################################################################################ # Build the final rom image $(obj)/coreboot.pre: $(objcbfs)/romstage_xip.elf $(obj)/coreboot.pre1 $(CBFSTOOL) @@ -274,7 +270,7 @@ $(obj)/coreboot.pre: $(objcbfs)/romstage_xip.elf $(obj)/coreboot.pre1 $(CBFSTOOL $(CONFIG_CBFS_PREFIX)/romstage x $(shell cat $(objcbfs)/base_xip.txt) mv $@.tmp $@ -####################################################################### +################################################################################ # Build the bootblock bootblock_lds = $(src)/arch/x86/init/ldscript_failover.lb @@ -331,7 +327,7 @@ else $(CC) -nostdlib -nostartfiles -static -o $@ -L$(obj) -T $(objgenerated)/bootblock.ld $< endif -####################################################################### +################################################################################ # Build the romstage $(objcbfs)/romstage_null.debug: $$(romstage-objs) $(objgenerated)/romstage_null.ld diff --git a/src/cpu/Kconfig b/src/cpu/Kconfig index baf686e..1ed721f 100644 --- a/src/cpu/Kconfig +++ b/src/cpu/Kconfig @@ -62,10 +62,90 @@ config SSE2 streaming SIMD instructions. Some parts of coreboot can be built with more efficient code if SSE2 instructions are available. -config MICROCODE_IN_CBFS - bool "Look for microcode in CBFS" +endif # ARCH_X86 + +config CPU_MICROCODE_IN_CBFS + bool default n + +choice + prompt "Include CPU microcode in CBFS" + default CPU_MICROCODE_CBFS_GENERATE if CPU_MICROCODE_IN_CBFS + default CPU_MICROCODE_CBFS_NONE if !CPU_MICROCODE_IN_CBFS + +config CPU_MICROCODE_CBFS_GENERATE + bool "Generate from tree" help - Load microcode updates from CBFS instead of compiling them in. + Select this option if you want microcode updates to be assembled when + building coreboot and included in the final image as a separate CBFS + file. Microcode will not be hard-coded into ramstage. -endif # ARCH_X86 + The microcode file and may be removed from the ROM image at a later + time with cbfstool, if desired. + + If unsure, select this option. + +config CPU_MICROCODE_CBFS_EXTERNAL + bool "Include external microcode file" + help + Select this option if you want to include an external file containing + the CPU microcode. This 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 and may be removed from the ROM image at a later + time with cbfstool, if desired. + + If unsure, select "Generate from tree" + +config CPU_MICROCODE_FILE + string "Path and filename of CPU microcode" + depends on CPU_MICROCODE_CBFS_EXTERNAL + default "cpu_microcode.bin" + help + The path and filename of the file containing the CPU microcode. + +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" + + The GOOD: + Microcode updates intend to solve issues that have been discovered + after CPU production. The expected effect is that systems work as + intended with the updated microcode, but we have also seen cases where + issues were solved by not applying microcode updates. + + The BAD: + Note that some operating system include these same microcode patches, + so you may need to also disable microcode updates in your operating + system for this option to have an effect. + + The UGLY: + A word of CAUTION: some CPUs depend on microcode updates to function + correctly. Not updating the microcode may leave the CPU operating at + less than optimal performance, or may cause outright hangups. + There are CPUs where coreboot cannot properly initialize the CPU + without microcode updates + For example, if running with the factory microcode, some Intel + SandyBridge CPUs may hang when enabling CAR, or some VIA Nano CPUs + will hang when changing the frequency. + + Make sure you have a way of flashing the ROM externally before + selecting this option. + +endchoice diff --git a/src/cpu/Makefile.inc b/src/cpu/Makefile.inc index 57273cf..0f32ad4 100644 --- a/src/cpu/Makefile.inc +++ b/src/cpu/Makefile.inc @@ -1,3 +1,40 @@ +################################################################################ +## Subdirectories +################################################################################ subdirs-y += amd subdirs-y += intel subdirs-y += via + +################################################################################ +## Rules for building the microcode blob in CBFS +################################################################################ + +ifneq ($(CONFIG_CPU_MICROCODE_CBFS_NONE), y) + +cbfs-files-y += cpu_microcode_blob.bin + +cpu_microcode_blob.bin-type = 0x53 + +# External microcode file, or are we generating one ? +ifeq ($(CONFIG_CPU_MICROCODE_CBFS_EXTERNAL), y) + cpu_microcode_blob.bin-file = $(CONFIG_CPU_MICROCODE_FILE) +else + cpu_microcode_blob.bin-file = $(obj)/cpu_microcode_blob.bin +endif + +# In case we have more than one "source" (cough) files containing microcodem, we +# Link them together in one large blob, so that we get all the microcode updates +# in one file. This makes it easier for objcopy in the final step. +# The --entry=0 is just here to suppress the LD warning. It does not affect the +# final microcode file. +$(obj)/cpu_microcode_blob.o: $$(cpu_microcode-objs) + @printf " LD $(subst $(obj)/,,$(@))\n" + $(LD) -static --entry=0 $< -o $@ + +# We have a lot of useless data in the large blob, and we are only interested in +# the data section, so we only copy that part to the final microcode file +$(obj)/cpu_microcode_blob.bin: $(obj)/cpu_microcode_blob.o + @printf " MICROCODE $(subst $(obj)/,,$(@))\n" + $(OBJCOPY) -j .data -O binary $< $@ + +endif diff --git a/src/cpu/intel/microcode/Makefile.inc b/src/cpu/intel/microcode/Makefile.inc index f4d0102..22655c9 100644 --- a/src/cpu/intel/microcode/Makefile.inc +++ b/src/cpu/intel/microcode/Makefile.inc @@ -1,15 +1,5 @@ -ramstage-y += microcode.c - - -ifeq ($(CONFIG_MICROCODE_IN_CBFS),y) - -SRC_PATH = src/cpu/intel/microcode -FLAGS = -I $(CONFIG_MICROCODE_INCLUDE_PATH) -include $(obj)/config.h -$(obj)/microcode_blob.o: $(SRC_PATH)/microcode_blob.c - $(CC) $(FLAGS) -MMD -c -o $@ $< - -$(obj)/microcode_blob.bin: $(obj)/microcode_blob.o - objcopy -j .data -O binary $< $@ - --include $(obj)/microcode_blob.d -endif +################################################################################ +## One small file with the awesome super-power of updating the cpu microcode +## directly from CBFS. You have been WARNED!!! +################################################################################ +ramstage-y += microcode.c \ No newline at end of file diff --git a/src/cpu/intel/microcode/microcode.c b/src/cpu/intel/microcode/microcode.c index e84bad9..a4471ca 100644 --- a/src/cpu/intel/microcode/microcode.c +++ b/src/cpu/intel/microcode/microcode.c @@ -28,7 +28,7 @@ #include <cpu/x86/msr.h> #include <cpu/intel/microcode.h> -#if CONFIG_MICROCODE_IN_CBFS +#if CONFIG_CPU_MICROCODE_IN_CBFS #ifdef __PRE_RAM__ #include <arch/cbfs.h> #else @@ -77,7 +77,7 @@ static inline u32 read_microcode_rev(void) return msr.hi; } -#if CONFIG_MICROCODE_IN_CBFS +#if CONFIG_CPU_MICROCODE_IN_CBFS static #endif void intel_update_microcode(const void *microcode_updates) @@ -144,9 +144,9 @@ void intel_update_microcode(const void *microcode_updates) } } -#if CONFIG_MICROCODE_IN_CBFS +#if CONFIG_CPU_MICROCODE_IN_CBFS -#define MICROCODE_CBFS_FILE "microcode_blob.bin" +#define MICROCODE_CBFS_FILE "cpu_microcode_blob.bin" void intel_update_microcode_from_cbfs(void) { diff --git a/src/cpu/intel/microcode/microcode_blob.c b/src/cpu/intel/microcode/microcode_blob.c deleted file mode 100644 index 69238a9..0000000 --- a/src/cpu/intel/microcode/microcode_blob.c +++ /dev/null @@ -1,22 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2012 The ChromiumOS Authors. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - * You should have received a copy of the GNU General Public License - * along with this program; if not, write to the Free Software - * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA - */ - -unsigned microcode[] = { -#include <microcode_blob.h> -}; diff --git a/src/cpu/intel/model_206ax/Kconfig b/src/cpu/intel/model_206ax/Kconfig index 071683e..1b4351e 100644 --- a/src/cpu/intel/model_206ax/Kconfig +++ b/src/cpu/intel/model_206ax/Kconfig @@ -12,7 +12,7 @@ config CPU_SPECIFIC_OPTIONS select SSE2 select UDELAY_LAPIC select SMM_TSEG - select MICROCODE_IN_CBFS + select CPU_MICROCODE_IN_CBFS config BOOTBLOCK_CPU_INIT string @@ -22,9 +22,6 @@ config SMM_TSEG_SIZE hex default 0x800000 -config MICROCODE_INCLUDE_PATH - string - default "src/cpu/intel/model_206ax" endif if CPU_INTEL_MODEL_206AX diff --git a/src/cpu/intel/model_206ax/Makefile.inc b/src/cpu/intel/model_206ax/Makefile.inc index e9b8e6d..6ab4840 100644 --- a/src/cpu/intel/model_206ax/Makefile.inc +++ b/src/cpu/intel/model_206ax/Makefile.inc @@ -5,4 +5,6 @@ ramstage-$(CONFIG_GENERATE_ACPI_TABLES) += acpi.c smm-$(CONFIG_HAVE_SMI_HANDLER) += finalize.c +cpu_microcode-$(CONFIG_CPU_MICROCODE_CBFS_GENERATE) += microcode_blob.c + cpu_incs += $(src)/cpu/intel/model_206ax/cache_as_ram.inc diff --git a/src/cpu/intel/model_206ax/microcode_blob.c b/src/cpu/intel/model_206ax/microcode_blob.c new file mode 100644 index 0000000..c2538e8 --- /dev/null +++ b/src/cpu/intel/model_206ax/microcode_blob.c @@ -0,0 +1,22 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 The ChromiumOS Authors. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA + */ + +unsigned microcode[] = { +#include "microcode_blob.h" +}; diff --git a/src/include/cpu/intel/microcode.h b/src/include/cpu/intel/microcode.h index 289e919..e9c13f9 100644 --- a/src/include/cpu/intel/microcode.h +++ b/src/include/cpu/intel/microcode.h @@ -21,7 +21,7 @@ #define __CPU__INTEL__MICROCODE__ #ifndef __PRE_RAM__ -#if CONFIG_MICROCODE_IN_CBFS +#if CONFIG_CPU_MICROCODE_IN_CBFS void intel_update_microcode_from_cbfs(void); #else void intel_update_microcode(const void *microcode_updates);

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coreboot August 2012