coreboot April 2012

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New patch to review for coreboot: d6c4814 Add support to run SMM handler in TSEG instead of ASEG
by Stefan Reinauer 02 Apr '12

02 Apr '12

Stefan Reinauer (stefan.reinauer(a)coreboot.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/842 -gerrit commit d6c4814d7812118ad7d9cac56c0e57b0121e61ab Author: Stefan Reinauer <reinauer(a)chromium.org> Date: Mon Apr 2 13:24:04 2012 -0700 Add support to run SMM handler in TSEG instead of ASEG Traditionally coreboot's SMM handler runs in ASEG (0xa0000), "behind" the graphics memory. This approach has two issues: - It limits the possible size of the SMM handler (and the number of CPUs supported in a system) - It's not considered a supported path anymore in newer CPUs. Change-Id: I9f2877e46873ab2ea8f1157ead4bc644a50be19e Signed-off-by: Duncan Laurie <dlaurie(a)google.com> Acked-by: Stefan Reinauer <reinauer(a)google.com> --- src/console/vtxprintf.c | 6 + src/cpu/x86/smm/Makefile.inc | 14 ++- src/cpu/x86/smm/smihandler.c | 17 ++- src/cpu/x86/smm/smm_tseg.ld | 58 +++++++ src/cpu/x86/smm/smmhandler.S | 3 - src/cpu/x86/smm/smmhandler_tseg.S | 300 +++++++++++++++++++++++++++++++++++++ src/cpu/x86/smm/smmrelocate.S | 57 +++++++ 7 files changed, 443 insertions(+), 12 deletions(-) diff --git a/src/console/vtxprintf.c b/src/console/vtxprintf.c index 4053023..a370e5f 100644 --- a/src/console/vtxprintf.c +++ b/src/console/vtxprintf.c @@ -6,6 +6,7 @@ #include <string.h> #include <div64.h> +#include <console/console.h> #include <console/vtxprintf.h> /* haha, don't need ctype.c */ @@ -115,6 +116,11 @@ int vtxprintf(void (*tx_byte)(unsigned char byte), const char *fmt, va_list args int count; +#if defined(__SMM__) && CONFIG_SMM_TSEG + /* Fix pointer in TSEG */ + tx_byte = console_tx_byte; +#endif + for (count=0; *fmt ; ++fmt) { if (*fmt != '%') { tx_byte(*fmt), count++; diff --git a/src/cpu/x86/smm/Makefile.inc b/src/cpu/x86/smm/Makefile.inc index 85bb454..108f8f9 100644 --- a/src/cpu/x86/smm/Makefile.inc +++ b/src/cpu/x86/smm/Makefile.inc @@ -22,15 +22,25 @@ ifeq ($(CONFIG_HAVE_SMI_HANDLER),y) ramstage-srcs += $(obj)/cpu/x86/smm/smm_wrap endif +# Use TSEG specific entry point and linker script +ifeq ($(CONFIG_SMM_TSEG),y) +smm-y += smmhandler_tseg.S +SMM_LDFLAGS := $(LDFLAGS) -pie +SMM_LDSCRIPT := smm_tseg.ld +else smm-y += smmhandler.S +SMM_LDFLAGS := $(LDFLAGFS) +SMM_LDSCRIPT := smm.ld +endif + smm-y += smihandler.c smm-y += smiutil.c $(obj)/cpu/x86/smm/smm.o: $$(smm-objs) $(CC) $(LDFLAGS) -nostdlib -r -o $@ $^ -$(obj)/cpu/x86/smm/smm_wrap: $(obj)/cpu/x86/smm/smm.o $(src)/cpu/x86/smm/smm.ld $(obj)/ldoptions - $(CC) $(LDFLAGS) -nostdlib -nostartfiles -static -o $(obj)/cpu/x86/smm/smm.elf -T $(src)/cpu/x86/smm/smm.ld $(obj)/cpu/x86/smm/smm.o +$(obj)/cpu/x86/smm/smm_wrap: $(obj)/cpu/x86/smm/smm.o $(src)/cpu/x86/smm/$(SMM_LDSCRIPT) $(obj)/ldoptions + $(CC) $(SMM_LDFLAGS) -nostdlib -nostartfiles -static -o $(obj)/cpu/x86/smm/smm.elf -T $(src)/cpu/x86/smm/$(SMM_LDSCRIPT) $(obj)/cpu/x86/smm/smm.o $(NM) -n $(obj)/cpu/x86/smm/smm.elf | sort > $(obj)/cpu/x86/smm/smm.map $(OBJCOPY) -O binary $(obj)/cpu/x86/smm/smm.elf $(obj)/cpu/x86/smm/smm diff --git a/src/cpu/x86/smm/smihandler.c b/src/cpu/x86/smm/smihandler.c index a6ab87f..a971d81 100644 --- a/src/cpu/x86/smm/smihandler.c +++ b/src/cpu/x86/smm/smihandler.c @@ -25,10 +25,11 @@ #include <cpu/x86/cache.h> #include <cpu/x86/smm.h> +#if !CONFIG_SMM_TSEG /* TSEG handler locks in assembly */ typedef enum { SMI_LOCKED, SMI_UNLOCKED } smi_semaphore; /* SMI multiprocessing semaphore */ -static volatile smi_semaphore smi_handler_status __attribute__ ((aligned (4))) = SMI_UNLOCKED; +static volatile smi_semaphore smi_handler_status = SMI_UNLOCKED; static int smi_obtain_lock(void) { @@ -46,7 +47,7 @@ static int smi_obtain_lock(void) return (ret == SMI_UNLOCKED); } -void smi_release_lock(void) +static void smi_release_lock(void) { asm volatile ( "movb %1, %%al\n" @@ -56,6 +57,7 @@ void smi_release_lock(void) : "eax" ); } +#endif #define LAPIC_ID 0xfee00020 static inline __attribute__((always_inline)) unsigned long nodeid(void) @@ -116,18 +118,16 @@ void smi_handler(u32 smm_revision) unsigned int node; smm_state_save_area_t state_save; +#if !CONFIG_SMM_TSEG /* Are we ok to execute the handler? */ if (!smi_obtain_lock()) { /* For security reasons we don't release the other CPUs * until the CPU with the lock is actually done */ - while (smi_handler_status == SMI_LOCKED) { - asm volatile ( - ".byte 0xf3, 0x90\n" /* hint a CPU we are in spinlock (PAUSE instruction, REP NOP) */ - ); - } + while (smi_handler_status == SMI_LOCKED) /* wait */ ; return; } +#endif smi_backup_pci_address(); @@ -145,6 +145,7 @@ void smi_handler(u32 smm_revision) (0xa8000 + 0x7e00 - (node * 0x400)); break; case 0x00030100: + case 0x00030101: /* SandyBridge */ state_save.type = EM64T; state_save.em64t_state_save = (em64t_smm_state_save_area_t *) (0xa8000 + 0x7d00 - (node * 0x400)); @@ -173,7 +174,9 @@ void smi_handler(u32 smm_revision) smi_restore_pci_address(); +#if !CONFIG_SMM_TSEG smi_release_lock(); +#endif /* De-assert SMI# signal to allow another SMI */ smi_set_eos(); diff --git a/src/cpu/x86/smm/smm_tseg.ld b/src/cpu/x86/smm/smm_tseg.ld new file mode 100644 index 0000000..016b5a0 --- /dev/null +++ b/src/cpu/x86/smm/smm_tseg.ld @@ -0,0 +1,58 @@ +/* Maximum number of CPUs/cores */ +CPUS = 16; + +SECTIONS +{ + /* This is the actual SMM handler. + * + * We just put code, rodata, data and bss all in a row. + */ + .handler (.): { + /* Assembler stub */ + *(.handler) + + /* C code of the SMM handler */ + *(.text); + *(.text.*); + + /* C read-only data of the SMM handler */ + . = ALIGN(16); + *(.rodata) + *(.rodata.*) + *(.data.rel.ro.*) + + /* C read-write data of the SMM handler */ + . = ALIGN(4); + *(.data) + + /* C uninitialized data of the SMM handler */ + . = ALIGN(4); + *(.bss) + *(.sbss) + + /* What is this? */ + *(COMMON) + . = ALIGN(4); + } + + /* We are using the TSEG interleaved to stuff the SMM handlers + * for all CPU cores in there. The jump table redirects the execution + * to the actual SMM handler + */ + . = 0x8000 - (( CPUS - 1) * 0x400); + .jumptable : { + *(.jumptable) + } + + /* Data used in early SMM TSEG handler. */ + . = 0x8400; + .earlydata : { + *(.earlydata) + } + + /DISCARD/ : { + *(.comment) + *(.note) + *(.note.*) + } +} diff --git a/src/cpu/x86/smm/smmhandler.S b/src/cpu/x86/smm/smmhandler.S index 774088e..3dd0b14 100644 --- a/src/cpu/x86/smm/smmhandler.S +++ b/src/cpu/x86/smm/smmhandler.S @@ -89,9 +89,6 @@ smm_handler_start: .code32 1: - /* flush the cache after disabling it */ - wbinvd - /* Use flat data segment */ movw $0x10, %ax movw %ax, %ds diff --git a/src/cpu/x86/smm/smmhandler_tseg.S b/src/cpu/x86/smm/smmhandler_tseg.S new file mode 100644 index 0000000..d3e4d21 --- /dev/null +++ b/src/cpu/x86/smm/smmhandler_tseg.S @@ -0,0 +1,300 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2008 coresystems GmbH + * + * 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 + */ + +/* + * +--------------------------------+ 0xffff + * | Save State Map Node 0 | + * | Save State Map Node 1 | + * | Save State Map Node 2 | + * | Save State Map Node 3 | + * | ... | + * +--------------------------------+ 0xf000 + * | | + * | | + * | EARLY DATA (lock, vectors) | + * +--------------------------------+ 0x8400 + * | SMM Entry Node 0 (+ stack) | + * +--------------------------------+ 0x8000 + * | SMM Entry Node 1 (+ stack) | + * | SMM Entry Node 2 (+ stack) | + * | SMM Entry Node 3 (+ stack) | + * | ... | + * +--------------------------------+ 0x7400 + * | | + * | SMM Handler | + * | | + * +--------------------------------+ TSEG + * + */ + +#define LAPIC_ID 0xfee00020 +#define SMM_STACK_SIZE (0x400 - 0x10) + +/* Values for the xchg lock */ +#define SMI_LOCKED 0 +#define SMI_UNLOCKED 1 + +#define __PRE_RAM__ +#if CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE || CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE +#include <northbridge/intel/sandybridge/sandybridge.h> +#define TSEG_BAR (DEFAULT_PCIEXBAR | TSEG) +#else +#error "Northbridge must define TSEG_BAR." +#endif + +/* initially SMM is some sort of real mode. Let gcc know + * how to treat the SMM handler stub + */ + +.section ".handler", "a", @progbits + +.code16 + +/** + * SMM code to enable protected mode and jump to the + * C-written function void smi_handler(u32 smm_revision) + * + * All the bad magic is not all that bad after all. + */ +smm_handler_start: + movl $(TSEG_BAR), %eax /* Get TSEG base from PCIE */ + addr32 movl (%eax), %edx /* Save TSEG_BAR in %edx */ + andl $~1, %edx /* Remove lock bit */ + + /* Obtain lock */ + movl %edx, %ebx + addl $(smm_lock), %ebx + movw $SMI_LOCKED, %ax + addr32 xchg %ax, (%ebx) + cmpw $SMI_UNLOCKED, %ax + + /* Proceed if we got the lock */ + je smm_check_prot_vector + + /* If we did not get the lock, wait for release */ +wait_for_unlock: + addr32 movw (%ebx), %ax + cmpw $SMI_LOCKED, %ax + je wait_for_unlock + rsm + +smm_check_prot_vector: + /* See if we need to adjust protected vector */ + movl %edx, %eax + addl $(smm_prot_vector), %eax + addr32 movl (%eax), %ebx + cmpl $(smm_prot_start), %ebx + jne smm_check_gdt_vector + + /* Adjust vector with TSEG offset */ + addl %edx, %ebx + addr32 movl %ebx, (%eax) + +smm_check_gdt_vector: + /* See if we need to adjust GDT vector */ + movl %edx, %eax + addl $(smm_gdt_vector + 2), %eax + addr32 movl (%eax), %ebx + cmpl $(smm_gdt - smm_handler_start), %ebx + jne smm_load_gdt + + /* Adjust vector with TSEG offset */ + addl %edx, %ebx + addr32 movl %ebx, (%eax) + +smm_load_gdt: + movl $(smm_gdt_vector), %ebx + addl %edx, %ebx /* TSEG base in %edx */ + data32 lgdt (%ebx) + + movl %cr0, %eax + andl $0x1FFAFFD1, %eax /* CD,NW,PG,AM,WP,NE,TS,EM,MP = 0 */ + orl $0x1, %eax /* PE = 1 */ + movl %eax, %cr0 + + /* Enable protected mode */ + movl $(smm_prot_vector), %eax + addl %edx, %eax + data32 ljmp *(%eax) + +.code32 +smm_prot_start: + /* Use flat data segment */ + movw $0x10, %ax + movw %ax, %ds + movw %ax, %es + movw %ax, %ss + movw %ax, %fs + movw %ax, %gs + + /* Get this CPU's LAPIC ID */ + movl $LAPIC_ID, %esi + movl (%esi), %ecx + shr $24, %ecx + + /* calculate stack offset by multiplying the APIC ID + * by 1024 (0x400), and save that offset in ebp. + */ + shl $10, %ecx + movl %ecx, %ebp + + /* We put the stack for each core right above + * its SMM entry point. Core 0 starts at SMM_BASE + 0x8000, + * we spare 0x10 bytes for the jump to be sure. + */ + movl $0x8010, %eax /* core 0 address */ + addl %edx, %eax /* addjust for TSEG */ + subl %ecx, %eax /* subtract offset, see above */ + movl %eax, %ebx /* Save bottom of stack in ebx */ + + /* clear stack */ + cld + movl %eax, %edi + movl $(SMM_STACK_SIZE >> 2), %ecx + xorl %eax, %eax + rep stosl + + /* set new stack */ + addl $SMM_STACK_SIZE, %ebx + movl %ebx, %esp + + /* Get SMM revision */ + movl $0xfefc, %ebx /* core 0 address */ + addl %edx, %ebx /* addjust for TSEG */ + subl %ebp, %ebx /* subtract core X offset */ + movl (%ebx), %eax + pushl %eax + + /* Call 32bit C handler */ + call smi_handler + + /* Release lock */ + movl $(TSEG_BAR), %eax /* Get TSEG base from PCIE */ + movl (%eax), %ebx /* Save TSEG_BAR in %ebx */ + andl $~1, %ebx /* Remove lock bit */ + addl $(smm_lock), %ebx + movw $SMI_UNLOCKED, %ax + xchg %ax, (%ebx) + + /* To return, just do rsm. It will "clean up" protected mode */ + rsm + +smm_gdt: + /* The first GDT entry can not be used. Keep it zero */ + .long 0x00000000, 0x00000000 + + /* gdt selector 0x08, flat code segment */ + .word 0xffff, 0x0000 + .byte 0x00, 0x9b, 0xcf, 0x00 /* G=1 and 0x0f, 4GB limit */ + + /* gdt selector 0x10, flat data segment */ + .word 0xffff, 0x0000 + .byte 0x00, 0x93, 0xcf, 0x00 + +smm_gdt_end: + +.section ".earlydata", "a", @progbits + +.code16 + +.align 4, 0xff + +smm_lock: + .word SMI_UNLOCKED + +.align 4, 0xff + +smm_prot_vector: + .long smm_prot_start + .short 8 + +.align 4, 0xff + +smm_gdt_vector: + .word smm_gdt_end - smm_gdt - 1 + .long smm_gdt - smm_handler_start + +.section ".jumptable", "a", @progbits + +/* This is the SMM jump table. All cores use the same SMM handler + * for simplicity. But SMM Entry needs to be different due to the + * save state area. The jump table makes sure all CPUs jump into the + * real handler on SMM entry. + */ + +/* This code currently supports up to 4 CPU cores. If more than 16 CPU cores + * shall be used, below table has to be updated, as well as smm_tseg.ld + */ + +/* When using TSEG do a relative jump and fix up the CS later since we + * do not know what our TSEG base is yet. + */ + +.code16 +jumptable: + /* core 15 */ + jmp smm_handler_start +.align 1024, 0x00 + /* core 14 */ + jmp smm_handler_start +.align 1024, 0x00 + /* core 13 */ + jmp smm_handler_start +.align 1024, 0x00 + /* core 12 */ + jmp smm_handler_start +.align 1024, 0x00 + /* core 11 */ + jmp smm_handler_start +.align 1024, 0x00 + /* core 10 */ + jmp smm_handler_start +.align 1024, 0x00 + /* core 9 */ + jmp smm_handler_start +.align 1024, 0x00 + /* core 8 */ + jmp smm_handler_start +.align 1024, 0x00 + /* core 7 */ + jmp smm_handler_start +.align 1024, 0x00 + /* core 6 */ + jmp smm_handler_start +.align 1024, 0x00 + /* core 5 */ + jmp smm_handler_start +.align 1024, 0x00 + /* core 4 */ + jmp smm_handler_start +.align 1024, 0x00 + /* core 3 */ + jmp smm_handler_start +.align 1024, 0x00 + /* core 2 */ + jmp smm_handler_start +.align 1024, 0x00 + /* core 1 */ + jmp smm_handler_start +.align 1024, 0x00 + /* core 0 */ + jmp smm_handler_start +.align 1024, 0x00 diff --git a/src/cpu/x86/smm/smmrelocate.S b/src/cpu/x86/smm/smmrelocate.S index 7b38348..93786a0 100644 --- a/src/cpu/x86/smm/smmrelocate.S +++ b/src/cpu/x86/smm/smmrelocate.S @@ -35,10 +35,24 @@ #include "../../../southbridge/intel/i82801dx/i82801dx.h" #elif CONFIG_SOUTHBRIDGE_INTEL_SCH #include "../../../southbridge/intel/sch/sch.h" +#elif CONFIG_SOUTHBRIDGE_INTEL_BD82X6X || CONFIG_SOUTHBRIDGE_INTEL_C216 +#include "../../../southbridge/intel/bd82x6x/pch.h" #else #error "Southbridge needs SMM handler support." #endif +#if CONFIG_SMM_TSEG + +#if CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE || CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE +#include <northbridge/intel/sandybridge/sandybridge.h> +#define TSEG_BAR (DEFAULT_PCIEXBAR | TSEG) +#else +#error "Northbridge must define TSEG_BAR." +#endif +#include <cpu/x86/mtrr.h> + +#endif /* CONFIG_SMM_TSEG */ + #define LAPIC_ID 0xfee00020 .global smm_relocation_start @@ -100,6 +114,7 @@ smm_relocation_start: /* Check revision to see if AMD64 style SMM_BASE * Intel Core Solo/Duo: 0x30007 * Intel Core2 Solo/Duo: 0x30100 + * Intel SandyBridge: 0x30101 * AMD64: 0x3XX64 * This check does not make much sense, unless someone ports * SMI handling to AMD64 CPUs. @@ -127,11 +142,53 @@ smm_relocate: movl %ecx, %edx shl $10, %edx +#if CONFIG_SMM_TSEG + movl $(TSEG_BAR), %ecx /* Get TSEG base from PCIE */ + addr32 movl (%ecx), %eax /* Save TSEG_BAR in %eax */ + andl $~1, %eax /* Remove lock bit */ +#else movl $0xa0000, %eax +#endif subl %edx, %eax /* subtract offset, see above */ addr32 movl %eax, (%ebx) +#if CONFIG_SMM_TSEG + /* Check for SMRR capability in MTRRCAP[11] */ + movl $MTRRcap_MSR, %ecx + rdmsr + bt $11, %eax + jnc skip_smrr + + /* TSEG base */ + movl $(TSEG_BAR), %ecx /* Get TSEG base from PCIE */ + addr32 movl (%ecx), %eax /* Save TSEG_BAR in %eax */ + andl $~1, %eax /* Remove lock bit */ + movl %eax, %ebx + + /* Set SMRR base address. */ + movl $SMRRphysBase_MSR, %ecx + orl $MTRR_TYPE_WRBACK, %eax + xorl %edx, %edx + wrmsr + + /* Set SMRR mask. */ + movl $SMRRphysMask_MSR, %ecx + movl $(~(CONFIG_SMM_TSEG_SIZE - 1) | MTRRphysMaskValid), %eax + xorl %edx, %edx + wrmsr + +#if CONFIG_NORTHBRIDGE_INTEL_SANDYBRIDGE || CONFIG_NORTHBRIDGE_INTEL_IVYBRIDGE + /* + * IED base is top 4M of TSEG + */ + addl $(CONFIG_SMM_TSEG_SIZE - IED_SIZE), %ebx + movl $(0x30000 + 0x8000 + 0x7eec), %eax + addr32 movl %ebx, (%eax) +#endif + +skip_smrr: +#endif /* The next section of code is potentially southbridge specific */

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Patch merged into coreboot/master: f6bf251 Apply cache-as-ram conditionally on socket mPGA604
by gerrit＠coreboot.org 02 Apr '12

02 Apr '12

the following patch was just integrated into master: commit f6bf251e4434d69c7efc33a14b449b4972cfa67c Author: Kyösti Mälkki <kyosti.malkki(a)gmail.com> Date: Tue Feb 28 14:01:34 2012 +0200 Apply cache-as-ram conditionally on socket mPGA604 The socket mPGA604 is for P4 Xeon which to my knowledge is always HT-enabled. I assume the existing usage of car/cache_as_ram.inc on socket_mPGA604, namely the Tyan S2735, as broken. Existing car/cache_as_ram.inc has invalid SIPI vector and it does not initialise AP CPU's to activate L2 cache. Other mPGA604 boards are not affected, as they have not been converted to CAR. Change-Id: I7320589695c7f6a695b313a8d0b01b6b1cafbb04 Signed-off-by: Kyösti Mälkki <kyosti.malkki(a)gmail.com> Build-Tested: build bot (Jenkins) at Tue Feb 28 14:26:37 2012, giving +1 See http://review.coreboot.org/607 for details. -gerrit

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Patch merged into coreboot/master: c7b290d S3 code whitespaces changes.
by gerrit＠coreboot.org 02 Apr '12

02 Apr '12

the following patch was just integrated into master: commit c7b290df9112fe8ce6cf2b4cec3bdd532be7f086 Author: zbao <fishbaozi(a)gmail.com> Date: Fri Mar 30 15:32:07 2012 +0800 S3 code whitespaces changes. some blank changing is integrated into the previous patches, which hold the unsplitted diff hunk. Change-Id: If9e5066927c5e27fee7ac8422dbfbf2cbeac7df5 Signed-off-by: Zheng Bao <zheng.bao(a)amd.com> Signed-off-by: zbao <fishbaozi(a)gmail.com> Build-Tested: build bot (Jenkins) at Fri Mar 30 08:40:45 2012, giving +1 Reviewed-By: Marc Jones <marcj303(a)gmail.com> at Mon Apr 2 21:11:53 2012, giving +2 See http://review.coreboot.org/625 for details. -gerrit

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Patch merged into coreboot/master: 1a7d560 Add sb800 spi support.
by gerrit＠coreboot.org 02 Apr '12

02 Apr '12

the following patch was just integrated into master: commit 1a7d560d455c655d66bc173161b4a2e550da5fc7 Author: zbao <fishbaozi(a)gmail.com> Date: Fri Mar 23 11:36:08 2012 +0800 Add sb800 spi support. It is for S3, storing the recovring data in the nonvolatile storage, i.e., flash. Change-Id: Ie9e4f42a80c93d92d2e442f0e833ce06d88294f9 Signed-off-by: Zheng Bao <zheng.bao(a)amd.com> Signed-off-by: zbao <fishbaozi(a)gmail.com> Build-Tested: build bot (Jenkins) at Fri Mar 30 09:50:39 2012, giving +1 Reviewed-By: Marc Jones <marcj303(a)gmail.com> at Mon Apr 2 20:35:02 2012, giving +2 See http://review.coreboot.org/620 for details. -gerrit

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Patch merged into coreboot/master: 1d6bf8b x86, oprom: ensure DF is always cleared
by gerrit＠coreboot.org 02 Apr '12

02 Apr '12

the following patch was just integrated into master: commit 1d6bf8be4ee126217544fabe1c39fe22317ddda0 Author: Mathias Krause <minipli(a)googlemail.com> Date: Sun Apr 1 11:32:09 2012 +0200 x86, oprom: ensure DF is always cleared The Option ROM might mess with the EFLAGS register and break assumptions the C part of coreboot implicitly has, e.g. the state of the direction flag. Prevent Option ROMs from confusing coreboot by restoring the old EFLAGS value after the Option ROMs has finished and always clear the direction flag before calling the C part of the interrupt handler. Change-Id: I84663be6681b17f95f48d93f0b730e443336b4a8 Signed-off-by: Mathias Krause <minipli(a)googlemail.com> Build-Tested: build bot (Jenkins) at Sun Apr 1 12:16:58 2012, giving +1 Reviewed-By: Stefan Reinauer <stefan.reinauer(a)coreboot.org> at Mon Apr 2 19:50:22 2012, giving +2 See http://review.coreboot.org/837 for details. -gerrit

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Patch merged into coreboot/master: c876459 [ChromeOS] Don't initialize VGA Option ROM in normal mode
by gerrit＠coreboot.org 02 Apr '12

02 Apr '12

the following patch was just integrated into master: commit c8764595acb4eca89ce7e6d2dabf7c6e8eac7704 Author: Stefan Reinauer <reinauer(a)chromium.org> Date: Fri Mar 30 17:10:49 2012 -0700 [ChromeOS] Don't initialize VGA Option ROM in normal mode ChromeOS features two different modes: normal mode and developer mode (aka jailbreak mode). In developer mode, we need to display a warning screen for security reasons. However, in normal mode we want to boot blazingly fast. Therefore we don't run (VGA) option ROMs, unless we have to print something on the screen before the kernel is loaded. Change-Id: I37f63d0b082a48e037e65bde2b380f9b8743ed29 Signed-off-by: Stefan Reinauer <reinauer(a)google.com> Build-Tested: build bot (Jenkins) at Sat Mar 31 04:01:23 2012, giving +1 See http://review.coreboot.org/829 for details. -gerrit

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Patch merged into coreboot/master: fe54f4a Add EC component for SMSC MEC1308/1310
by gerrit＠coreboot.org 02 Apr '12

02 Apr '12

the following patch was just integrated into master: commit fe54f4a827ed92e40946633a217d0ad97055187e Author: Stefan Reinauer <reinauer(a)chromium.org> Date: Fri Mar 30 17:06:43 2012 -0700 Add EC component for SMSC MEC1308/1310 Change-Id: I92109fb633a1a3090b4b1767dd119b8c8a1b5f81 Signed-off-by: Duncan Laurie <dlaurie(a)google.com> Signed-off-by: Stefan Reinauer <reinauer(a)google.com> Build-Tested: build bot (Jenkins) at Sat Mar 31 03:33:11 2012, giving +1 See http://review.coreboot.org/828 for details. -gerrit

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Patch merged into coreboot/master: f62e2d8 Add support for ITE IT8772F SuperI/O chip
by gerrit＠coreboot.org 02 Apr '12

02 Apr '12

the following patch was just integrated into master: commit f62e2d8ad35b6f7e1b6c56c04361fece45f9650b Author: Stefan Reinauer <reinauer(a)chromium.org> Date: Fri Mar 30 15:04:07 2012 -0700 Add support for ITE IT8772F SuperI/O chip Change-Id: I8e80c22eb0f3cb68f2457be6b2e7894df60ed632 Signed-off-by: Duncan Laurie <dlaurie(a)google.com> Signed-off-by: Stefan Reinauer <reinauer(a)google.com> Build-Tested: build bot (Jenkins) at Sat Mar 31 04:54:14 2012, giving +1 See http://review.coreboot.org/822 for details. -gerrit

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Patch merged into coreboot/master: 5a56dc0 Add a helper function to determine the number of enabled CPUs
by gerrit＠coreboot.org 02 Apr '12

02 Apr '12

the following patch was just integrated into master: commit 5a56dc038f16242e624c493bffeb0d9b38b85cad Author: Stefan Reinauer <reinauer(a)chromium.org> Date: Fri Mar 30 13:52:58 2012 -0700 Add a helper function to determine the number of enabled CPUs Change-Id: Ia72926002571e0f250849fa5db048bd8b2e92400 Signed-off-by: Duncan Laurie <dlaurie(a)google.com> Build-Tested: build bot (Jenkins) at Sat Mar 31 03:47:34 2012, giving +1 See http://review.coreboot.org/821 for details. -gerrit

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Patch merged into coreboot/master: 69d9d86 Align: Make sure 1 is treated as unsigned long instead of int
by gerrit＠coreboot.org 02 Apr '12

02 Apr '12

the following patch was just integrated into master: commit 69d9d86b4a64ddc01d3bd3956b5984afeb7e2f7a Author: Stefan Reinauer <reinauer(a)chromium.org> Date: Fri Mar 30 13:00:46 2012 -0700 Align: Make sure 1 is treated as unsigned long instead of int ... and drop duplicate definition in via/epia-n code. Change-Id: Id79daaaa35c4d412c8c1f621a3638d129681d331 Signed-off-by: Stefan Reinauer <reinauer(a)google.com> Build-Tested: build bot (Jenkins) at Sat Mar 31 04:21:07 2012, giving +1 See http://review.coreboot.org/820 for details. -gerrit

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coreboot April 2012