Aaron Durbin (adurbin@chromium.org) just uploaded a new patch set to gerrit, which you can find at http://review.coreboot.org/9170
-gerrit
commit 6868b2ba56310c7dec7e420db155e48ccaaf9c24 Author: Aaron Durbin adurbin@chromium.org Date: Sat Mar 28 23:56:22 2015 -0500
fmap: new API using region_device
Instead of being pointer based use the region infrastrucutre. Additionally, this removes the need for arch-specific compilation paths. The users of the new API can use the region APIs to memory map or read the region provided by the new fmap API.
Change-Id: Ie36e9ff9cb554234ec394b921f029eeed6845aee Signed-off-by: Aaron Durbin adurbin@chromium.org --- src/Kconfig | 9 ++ src/drivers/elog/elog.c | 49 ++----- src/include/fmap.h | 35 +++++ src/include/fmap_serialized.h | 73 ++++++++++ src/lib/Makefile.inc | 5 + src/lib/fmap.c | 121 ++++++++++++++++ src/mainboard/google/butterfly/mainboard.c | 41 +++--- src/mainboard/google/panther/lan.c | 25 ++-- src/northbridge/intel/haswell/mrccache.c | 28 ++-- src/northbridge/intel/sandybridge/mrccache.c | 29 ++-- src/soc/intel/common/mrc_cache.c | 27 ++-- src/vendorcode/google/chromeos/Kconfig | 9 -- src/vendorcode/google/chromeos/Makefile.inc | 4 - src/vendorcode/google/chromeos/cros_vpd.c | 30 ++-- src/vendorcode/google/chromeos/fmap.c | 157 --------------------- src/vendorcode/google/chromeos/fmap.h | 79 ----------- .../google/chromeos/vboot2/vboot_handoff.c | 2 +- src/vendorcode/google/chromeos/vboot_common.c | 14 +- 18 files changed, 364 insertions(+), 373 deletions(-)
diff --git a/src/Kconfig b/src/Kconfig index 480b8e9..846833e 100644 --- a/src/Kconfig +++ b/src/Kconfig @@ -244,6 +244,15 @@ config CACHE_RELOCATED_RAMSTAGE_OUTSIDE_CBMEM The relocated ramstage is saved in an area specified by the by the board and/or chipset.
+config FLASHMAP_OFFSET + hex "Flash Map Offset" + default 0x00670000 if NORTHBRIDGE_INTEL_SANDYBRIDGE + default 0x00610000 if NORTHBRIDGE_INTEL_IVYBRIDGE + default CBFS_SIZE if !ARCH_X86 + default 0 + help + Offset of flash map in firmware image + choice prompt "Bootblock behaviour" default BOOTBLOCK_SIMPLE diff --git a/src/drivers/elog/elog.c b/src/drivers/elog/elog.c index d7751c2..332975f 100644 --- a/src/drivers/elog/elog.c +++ b/src/drivers/elog/elog.c @@ -26,6 +26,7 @@ #include <pc80/mc146818rtc.h> #endif #include <bcd.h> +#include <fmap.h> #include <rtc.h> #include <smbios.h> #include <spi-generic.h> @@ -35,7 +36,6 @@ #include <elog.h> #include "elog_internal.h"
-#include <vendorcode/google/chromeos/fmap.h>
#if !IS_ENABLED(CONFIG_CHROMEOS) && CONFIG_ELOG_FLASH_BASE == 0 #error "CONFIG_ELOG_FLASH_BASE is invalid" @@ -86,26 +86,6 @@ static inline u32 get_rom_size(void) }
/* - * Convert a memory mapped flash address into a flash offset - */ -static inline u32 elog_flash_address_to_offset(u8 *address) -{ -#if CONFIG_ARCH_X86 - /* For x86, assume address is memory-mapped near 4GB */ - u32 rom_size; - - if (!elog_spi) - return 0; - - rom_size = get_rom_size(); - - return (u32)address - ((u32)~0UL - rom_size + 1); -#else - return (u32)(uintptr_t)address; -#endif -} - -/* * Pointer to an event log header in the event data area */ static inline struct event_header* @@ -517,21 +497,22 @@ static void elog_find_flash(void) { elog_debug("elog_find_flash()\n");
-#if CONFIG_CHROMEOS - /* Find the ELOG base and size in FMAP */ - u8 *flash_base_ptr; - int fmap_size = find_fmap_entry("RW_ELOG", (void **)&flash_base_ptr); - if (fmap_size < 0) { - printk(BIOS_WARNING, "ELOG: Unable to find RW_ELOG in FMAP\n"); - flash_base = total_size = 0; + if (IS_ENABLED(CONFIG_CHROMEOS)) { + /* Find the ELOG base and size in FMAP */ + struct region r; + + if (fmap_locate_area("RW_ELOG", &r) < 0) { + printk(BIOS_WARNING, + "ELOG: Unable to find RW_ELOG in FMAP\n"); + flash_base = total_size = 0; + } else { + flash_base = region_offset(&r); + total_size = MIN(region_sz(&r), CONFIG_ELOG_AREA_SIZE); + } } else { - flash_base = elog_flash_address_to_offset(flash_base_ptr); - total_size = MIN(fmap_size, CONFIG_ELOG_AREA_SIZE); + flash_base = CONFIG_ELOG_FLASH_BASE; + total_size = CONFIG_ELOG_AREA_SIZE; } -#else - flash_base = CONFIG_ELOG_FLASH_BASE; - total_size = CONFIG_ELOG_AREA_SIZE; -#endif log_size = total_size - sizeof(struct elog_header); full_threshold = log_size - ELOG_MIN_AVAILABLE_ENTRIES * MAX_EVENT_SIZE; shrink_size = MIN(total_size * ELOG_SHRINK_PERCENTAGE / 100, diff --git a/src/include/fmap.h b/src/include/fmap.h new file mode 100644 index 0000000..e575bbf --- /dev/null +++ b/src/include/fmap.h @@ -0,0 +1,35 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2015 Google Inc. + * + * 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. + */ + +#ifndef _FMAP_H_ +#define _FMAP_H_ + +#include <region.h> + +/* Locate the named area in the fmap and fill in a region device representing + * that area. The region is a sub-region of the readonly boot media. Return + * 0 on success, < 0 on error. */ +int fmap_locate_area_as_rdev(const char *name, struct region_device *area); + +/* Locate the named area in the fmap and fill in a region with the + * offset and size of that area within the boot media. Return 0 on success, + * < 0 on error. */ +int fmap_locate_area(const char *name, struct region *r); + +#endif diff --git a/src/include/fmap_serialized.h b/src/include/fmap_serialized.h new file mode 100644 index 0000000..3585f0b --- /dev/null +++ b/src/include/fmap_serialized.h @@ -0,0 +1,73 @@ +/* + * Copyright 2010, Google Inc. + * All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions are + * met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following disclaimer + * in the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Google Inc. nor the names of its + * contributors may be used to endorse or promote products derived from + * this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + * + * Alternatively, this software may be distributed under the terms of the + * GNU General Public License ("GPL") version 2 as published by the Free + * Software Foundation. + */ + +#ifndef FLASHMAP_SERIALIZED_H__ +#define FLASHMAP_SERIALIZED_H__ + +#include <stdint.h> + +#define FMAP_SIGNATURE "__FMAP__" +#define FMAP_VER_MAJOR 1 /* this header's FMAP minor version */ +#define FMAP_VER_MINOR 1 /* this header's FMAP minor version */ +#define FMAP_STRLEN 32 /* maximum length for strings, */ + /* including null-terminator */ + +enum fmap_flags { + FMAP_AREA_STATIC = 1 << 0, + FMAP_AREA_COMPRESSED = 1 << 1, + FMAP_AREA_RO = 1 << 2, +}; + +/* Mapping of volatile and static regions in firmware binary */ +struct fmap_area { + uint32_t offset; /* offset relative to base */ + uint32_t size; /* size in bytes */ + uint8_t name[FMAP_STRLEN]; /* descriptive name */ + uint16_t flags; /* flags for this area */ +} __attribute__((packed)); + +struct fmap { + uint8_t signature[8]; /* "__FMAP__" (0x5F5F464D41505F5F) */ + uint8_t ver_major; /* major version */ + uint8_t ver_minor; /* minor version */ + uint64_t base; /* address of the firmware binary */ + uint32_t size; /* size of firmware binary in bytes */ + uint8_t name[FMAP_STRLEN]; /* name of this firmware binary */ + uint16_t nareas; /* number of areas described by + fmap_areas[] below */ + struct fmap_area areas[]; +} __attribute__((packed)); + +#endif /* FLASHMAP_SERIALIZED_H__ */ diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc index 11725c4..6d685ff 100644 --- a/src/lib/Makefile.inc +++ b/src/lib/Makefile.inc @@ -32,12 +32,14 @@ bootblock-y += memcmp.c bootblock-y += mem_pool.c bootblock-y += region.c bootblock-y += boot_device.c +bootblock-y += fmap.c
verstage-y += prog_ops.c verstage-y += delay.c verstage-y += cbfs.c verstage-y += cbfs_core.c verstage-y += halt.c +verstage-y += fmap.c verstage-y += memcmp.c verstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c verstage-y += region.c @@ -62,6 +64,7 @@ $(foreach arch,$(ARCH_SUPPORTED),\ $(eval rmodules_$(arch)-y += memcmp.c) \ $(eval rmodules_$(arch)-y += rmodule.ld))
+romstage-y += fmap.c romstage-$(CONFIG_I2C_TPM) += delay.c romstage-y += cbfs.c cbfs_core.c romstage-$(CONFIG_COMMON_CBFS_SPI_WRAPPER) += cbfs_spi.c @@ -89,6 +92,7 @@ ramstage-y += hardwaremain.c ramstage-y += selfboot.c ramstage-y += coreboot_table.c ramstage-y += bootmem.c +ramstage-y += fmap.c ramstage-y += memchr.c ramstage-y += memcmp.c ramstage-y += malloc.c @@ -148,6 +152,7 @@ ramstage-y += boot_device.c
smm-y += region.c smm-y += boot_device.c +smm-y += fmap.c smm-y += cbfs.c cbfs_core.c memcmp.c smm-$(CONFIG_COMPILER_GCC) += gcc.c
diff --git a/src/lib/fmap.c b/src/lib/fmap.c new file mode 100644 index 0000000..c0cbca1 --- /dev/null +++ b/src/lib/fmap.c @@ -0,0 +1,121 @@ +/* + * This file is part of the coreboot project. + * + * Copyright 2012-2015 Google Inc. + * + * 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. + */ + +#include <boot_device.h> +#include <console/console.h> +#include <fmap.h> +#include <fmap_serialized.h> +#include <stddef.h> +#include <string.h> + +/* + * See http://code.google.com/p/flashmap/ for more information on FMAP. + */ + +static int find_fmap_directory(struct region_device *fmrd) +{ + const struct region_device *boot; + struct fmap *fmap; + size_t fmap_size; + size_t offset = CONFIG_FLASHMAP_OFFSET; + + boot = boot_device_ro(); + + if (boot == NULL) + return -1; + + fmap_size = sizeof(struct fmap); + + fmap = rdev_mmap(boot, offset, fmap_size); + + if (fmap == NULL) + return -1; + + if (memcmp(fmap->signature, FMAP_SIGNATURE, sizeof(fmap->signature))) { + printk(BIOS_DEBUG, "No FMAP found at %zx offset.\n", offset); + rdev_munmap(boot, fmap); + return -1; + } + + printk(BIOS_DEBUG, "FMAP: Found "%s" version %d.%d at %zx.\n", + fmap->name, fmap->ver_major, fmap->ver_minor, offset); + printk(BIOS_DEBUG, "FMAP: base = %llx size = %x #areas = %d\n", + (long long)fmap->base, fmap->size, fmap->nareas); + + fmap_size += fmap->nareas * sizeof(struct fmap_area); + + rdev_munmap(boot, fmap); + + return rdev_chain(fmrd, boot, offset, fmap_size); +} + +int fmap_locate_area_as_rdev(const char *name, struct region_device *area) +{ + const struct region_device *boot; + struct region ar; + + boot = boot_device_ro(); + + if (fmap_locate_area(name, &ar)) + return -1; + + return rdev_chain(area, boot, ar.offset, ar.size); +} + +int fmap_locate_area(const char *name, struct region *ar) +{ + struct region_device fmrd; + size_t offset; + + if (find_fmap_directory(&fmrd)) + return -1; + + /* Start reading the areas just after fmap header. */ + offset = sizeof(struct fmap); + + while (1) { + struct fmap_area *area; + + area = rdev_mmap(&fmrd, offset, sizeof(*area)); + + if (area == NULL) + return -1; + + if (strcmp((const char *)area->name, name)) { + rdev_munmap(&fmrd, area); + offset += sizeof(struct fmap_area); + continue; + } + + printk(BIOS_DEBUG, "FMAP: area %s found\n", name); + printk(BIOS_DEBUG, "FMAP: offset: %x\n", area->offset); + printk(BIOS_DEBUG, "FMAP: size: %d bytes\n", area->size); + + ar->offset = area->offset; + ar->size = area->size; + + rdev_munmap(&fmrd, area); + + return 0; + } + + printk(BIOS_DEBUG, "FMAP: area %s not found\n", name); + + return -1; +} diff --git a/src/mainboard/google/butterfly/mainboard.c b/src/mainboard/google/butterfly/mainboard.c index f83b33b..6d2af16 100644 --- a/src/mainboard/google/butterfly/mainboard.c +++ b/src/mainboard/google/butterfly/mainboard.c @@ -20,11 +20,13 @@
#include <types.h> #include <string.h> +#include <cbfs.h> #include <device/device.h> #include <device/pci_def.h> #include <device/pci_ops.h> #include <console/console.h> #include <drivers/intel/gma/int15.h> +#include <fmap.h> #include <pc80/mc146818rtc.h> #include <arch/acpi.h> #include <arch/io.h> @@ -36,11 +38,6 @@ #include <smbios.h> #include <device/pci.h> #include <ec/quanta/ene_kb3940q/ec.h> -#if CONFIG_CHROMEOS -#include <vendorcode/google/chromeos/fmap.h> -#else -#include <cbfs.h> -#endif
static unsigned int search(char *p, char *a, unsigned int lengthp, unsigned int lengtha) @@ -200,20 +197,30 @@ static void mainboard_init(device_t dev) size_t search_length = -1; u16 io_base = 0; struct device *ethernet_dev = NULL; -#if CONFIG_CHROMEOS - char **vpd_region_ptr = NULL; - search_length = find_fmap_entry("RO_VPD", (void **)vpd_region_ptr); - search_address = (unsigned long)(*vpd_region_ptr); -#else - void *vpd_file = cbfs_get_file_content(CBFS_DEFAULT_MEDIA, "vpd.bin", - CBFS_TYPE_RAW, &search_length); - if (vpd_file) { - search_address = (unsigned long)vpd_file; + void *vpd_file; + + if (IS_ENABLED(CONFIG_CHROMEOS)) { + struct region_device rdev; + + if (fmap_locate_area_as_rdev("RO_VPD", &rdev) == 0) { + vpd_file = rdev_mmap_full(&rdev); + + if (vpd_file != NULL) { + search_length = region_device_sz(&rdev); + search_address = (uintptr_t)vpd_file; + } + } } else { - search_length = -1; - search_address = 0; + vpd_file = cbfs_get_file_content(CBFS_DEFAULT_MEDIA, + "vpd.bin", CBFS_TYPE_RAW, + &search_length); + if (vpd_file) { + search_address = (unsigned long)vpd_file; + } else { + search_length = -1; + search_address = 0; + } } -#endif
/* Initialize the Embedded Controller */ butterfly_ec_init(); diff --git a/src/mainboard/google/panther/lan.c b/src/mainboard/google/panther/lan.c index 9d9e9be..650d018 100644 --- a/src/mainboard/google/panther/lan.c +++ b/src/mainboard/google/panther/lan.c @@ -24,8 +24,8 @@ #include <console/console.h> #include <device/device.h> #include <device/pci.h> +#include <fmap.h> #include <southbridge/intel/bd82x6x/pch.h> -#include <vendorcode/google/chromeos/fmap.h> #include "onboard.h"
static unsigned int search(char *p, u8 *a, unsigned int lengthp, @@ -117,15 +117,24 @@ static void program_mac_address(u16 io_base) u32 high_dword = 0xD0BA00A0; /* high dword of mac address */ u32 low_dword = 0x0000AD0B; /* low word of mac address as a dword */
-#if CONFIG_CHROMEOS - search_length = find_fmap_entry("RO_VPD", &search_address); -#else - search_address = cbfs_get_file_content(CBFS_DEFAULT_MEDIA, "vpd.bin", - CBFS_TYPE_RAW, &search_length); -#endif + if (IS_ENABLED(CONFIG_CHROMEOS)) { + struct region_device rdev; + + if (fmap_locate_area_as_rdev("RO_VPD", &rdev) == 0) { + search_address = rdev_mmap_full(&rdev); + + if (search_address != NULL) + search_length = region_device_sz(&rdev); + } + } else { + search_address = cbfs_get_file_content(CBFS_DEFAULT_MEDIA, + "vpd.bin", + CBFS_TYPE_RAW, + &search_length); + }
if (search_length <= 0) - printk(BIOS_ERR, "LAN: find_fmap_entry returned -1.\n"); + printk(BIOS_ERR, "LAN: VPD not found.\n"); else get_mac_address(&high_dword, &low_dword, search_address, search_length); diff --git a/src/northbridge/intel/haswell/mrccache.c b/src/northbridge/intel/haswell/mrccache.c index 8fbac17..e4acda8 100644 --- a/src/northbridge/intel/haswell/mrccache.c +++ b/src/northbridge/intel/haswell/mrccache.c @@ -22,6 +22,7 @@ #include <bootstate.h> #include <console/console.h> #include <cbfs.h> +#include <fmap.h> #include <ip_checksum.h> #include <device/device.h> #include <cbmem.h> @@ -29,9 +30,6 @@ #include "haswell.h" #include <spi-generic.h> #include <spi_flash.h> -#if CONFIG_CHROMEOS -#include <vendorcode/google/chromeos/fmap.h> -#endif
/* convert a pointer to flash area into the offset inside the flash */ static inline u32 to_flash_offset(struct spi_flash *flash, void *p) { @@ -66,16 +64,22 @@ static int is_mrc_cache(struct mrc_data_container *mrc_cache) */ static u32 get_mrc_cache_region(struct mrc_data_container **mrc_region_ptr) { -#if CONFIG_CHROMEOS - return find_fmap_entry("RW_MRC_CACHE", (void **)mrc_region_ptr); -#else - size_t region_size; - *mrc_region_ptr = cbfs_get_file_content(CBFS_DEFAULT_MEDIA, - "mrc.cache", - CBFS_TYPE_MRC_CACHE, - ®ion_size); + size_t region_size = 0; + + if (IS_ENABLED(CONFIG_CHROMEOS)) { + struct region_device rdev; + + if (fmap_locate_area_as_rdev("RW_MRC_CACHE", &rdev) == 0) { + region_size = region_device_sz(&rdev); + *mrc_region_ptr = rdev_mmap_full(&rdev); + } + } else { + *mrc_region_ptr = cbfs_get_file_content(CBFS_DEFAULT_MEDIA, + "mrc.cache", + CBFS_TYPE_MRC_CACHE, + ®ion_size); + } return region_size; -#endif }
/* diff --git a/src/northbridge/intel/sandybridge/mrccache.c b/src/northbridge/intel/sandybridge/mrccache.c index 4a69233..1453390 100644 --- a/src/northbridge/intel/sandybridge/mrccache.c +++ b/src/northbridge/intel/sandybridge/mrccache.c @@ -22,6 +22,7 @@ #include <bootstate.h> #include <console/console.h> #include <cbfs.h> +#include <fmap.h> #include <ip_checksum.h> #include <device/device.h> #include <cbmem.h> @@ -29,9 +30,6 @@ #include "sandybridge.h" #include <spi-generic.h> #include <spi_flash.h> -#if CONFIG_CHROMEOS -#include <vendorcode/google/chromeos/fmap.h> -#endif
/* convert a pointer to flash area into the offset inside the flash */ static inline u32 to_flash_offset(struct spi_flash *flash, void *p) { @@ -66,17 +64,22 @@ static int is_mrc_cache(struct mrc_data_container *mrc_cache) */ static u32 get_mrc_cache_region(struct mrc_data_container **mrc_region_ptr) { -#if CONFIG_CHROMEOS - return find_fmap_entry("RW_MRC_CACHE", (void **)mrc_region_ptr); -#else - size_t region_size; - *mrc_region_ptr = cbfs_get_file_content(CBFS_DEFAULT_MEDIA, - "mrc.cache", - CBFS_TYPE_MRC_CACHE, - ®ion_size); - return region_size; -#endif + size_t region_size = 0; + + if (IS_ENABLED(CONFIG_CHROMEOS)) { + struct region_device rdev;
+ if (fmap_locate_area_as_rdev("RW_MRC_CACHE", &rdev) == 0) { + region_size = region_device_sz(&rdev); + *mrc_region_ptr = rdev_mmap_full(&rdev); + } + } else { + *mrc_region_ptr = cbfs_get_file_content(CBFS_DEFAULT_MEDIA, + "mrc.cache", + CBFS_TYPE_MRC_CACHE, + ®ion_size); + } + return region_size; }
/* diff --git a/src/soc/intel/common/mrc_cache.c b/src/soc/intel/common/mrc_cache.c index f854046..8697e9d 100644 --- a/src/soc/intel/common/mrc_cache.c +++ b/src/soc/intel/common/mrc_cache.c @@ -20,10 +20,8 @@ #include <string.h> #include <console/console.h> #include <cbmem.h> +#include <fmap.h> #include <ip_checksum.h> -#if CONFIG_CHROMEOS -#include <vendorcode/google/chromeos/fmap.h> -#endif #include "mrc_cache.h"
#define MRC_DATA_ALIGN 0x1000 @@ -39,16 +37,23 @@ struct mrc_data_region { /* common code */ static int mrc_cache_get_region(struct mrc_data_region *region) { -#if CONFIG_CHROMEOS - int ret; - ret = find_fmap_entry("RW_MRC_CACHE", ®ion->base); - if (ret >= 0) { - region->size = ret; + if (IS_ENABLED(CONFIG_CHROMEOS)) { + struct region_device rdev; + + if (fmap_locate_area_as_rdev("RW_MRC_CACHE", &rdev)) + return -1; + + region->size = region_device_sz(&rdev); + region->base = rdev_mmap_full(&rdev); + + if (region->base == NULL) + return -1; + return 0; + } else { + region->base = (void *)CONFIG_MRC_SETTINGS_CACHE_BASE; + region->size = CONFIG_MRC_SETTINGS_CACHE_SIZE; } -#endif - region->base = (void *)CONFIG_MRC_SETTINGS_CACHE_BASE; - region->size = CONFIG_MRC_SETTINGS_CACHE_SIZE; return 0; }
diff --git a/src/vendorcode/google/chromeos/Kconfig b/src/vendorcode/google/chromeos/Kconfig index 90e3505..1763f46 100644 --- a/src/vendorcode/google/chromeos/Kconfig +++ b/src/vendorcode/google/chromeos/Kconfig @@ -92,15 +92,6 @@ config CHROMEOS_RAMOOPS_RAM_SIZE default 0x00100000 depends on CHROMEOS_RAMOOPS
-config FLASHMAP_OFFSET - hex "Flash Map Offset" - default 0x00670000 if NORTHBRIDGE_INTEL_SANDYBRIDGE - default 0x00610000 if NORTHBRIDGE_INTEL_IVYBRIDGE - default CBFS_SIZE if !ARCH_X86 - default 0 - help - Offset of flash map in firmware image - config EC_SOFTWARE_SYNC bool "Enable EC software sync" default n diff --git a/src/vendorcode/google/chromeos/Makefile.inc b/src/vendorcode/google/chromeos/Makefile.inc index 7c41ec8..71bb1d0 100644 --- a/src/vendorcode/google/chromeos/Makefile.inc +++ b/src/vendorcode/google/chromeos/Makefile.inc @@ -35,11 +35,7 @@ ramstage-$(CONFIG_CHROMEOS_VBNV_FLASH) += vbnv_flash.c romstage-$(CONFIG_ARCH_ROMSTAGE_X86_32) += vboot.c ramstage-$(CONFIG_ELOG) += elog.c ramstage-$(CONFIG_HAVE_ACPI_TABLES) += gnvs.c -verstage-y += fmap.c -romstage-y += fmap.c -ramstage-y += fmap.c ramstage-$(CONFIG_CHROMEOS_RAMOOPS) += ramoops.c -smm-y += fmap.c romstage-y += vpd_decode.c cros_vpd.c ramstage-y += vpd_decode.c cros_vpd.c vpd_mac.c vpd_serialno.c vpd_calibration.c ifeq ($(CONFIG_ARCH_X86)$(CONFIG_ARCH_MIPS),) diff --git a/src/vendorcode/google/chromeos/cros_vpd.c b/src/vendorcode/google/chromeos/cros_vpd.c index c0e4830..fed1d82 100644 --- a/src/vendorcode/google/chromeos/cros_vpd.c +++ b/src/vendorcode/google/chromeos/cros_vpd.c @@ -6,12 +6,11 @@
#include <console/console.h>
-#include <cbfs.h> +#include <fmap.h> #include <stdlib.h> #include <string.h>
#include "cros_vpd.h" -#include "fmap.h" #include "lib_vpd.h" #include "vpd_tables.h"
@@ -35,9 +34,7 @@ static int cros_vpd_load(uint8_t **vpd_address, int32_t *vpd_size) MAYBE_STATIC int result = -1; struct google_vpd_info info; int32_t base; - - const struct fmap_area *area; - struct cbfs_media media; + struct region_device vpd;
if (cached) { *vpd_address = cached_address; @@ -46,32 +43,31 @@ static int cros_vpd_load(uint8_t **vpd_address, int32_t *vpd_size) }
cached = 1; - area = find_fmap_area(fmap_find(), "RO_VPD"); - if (!area) { + if (fmap_locate_area_as_rdev("RO_VPD", &vpd)) { printk(BIOS_ERR, "%s: No RO_VPD FMAP section.\n", __func__); return result; } - if (area->size <= GOOGLE_VPD_2_0_OFFSET + sizeof(info)) { + + base = 0; + cached_size = region_device_sz(&vpd); + + if ((cached_size < GOOGLE_VPD_2_0_OFFSET + sizeof(info)) || + rdev_chain(&vpd, &vpd, GOOGLE_VPD_2_0_OFFSET, + cached_size - GOOGLE_VPD_2_0_OFFSET)) { printk(BIOS_ERR, "%s: Too small (%d) for Google VPD 2.0.\n", - __func__, area->size); + __func__, cached_size); return result; }
- base = area->offset + GOOGLE_VPD_2_0_OFFSET; - cached_size = area->size - GOOGLE_VPD_2_0_OFFSET; - init_default_cbfs_media(&media); - media.open(&media); - /* Try if we can find a google_vpd_info, otherwise read whole VPD. */ - if (media.read(&media, &info, base, sizeof(info)) == sizeof(info) && + if (rdev_readat(&vpd, &info, base, sizeof(info)) == sizeof(info) && memcmp(info.header.magic, VPD_INFO_MAGIC, sizeof(info.header.magic)) == 0 && cached_size >= info.size + sizeof(info)) { base += sizeof(info); cached_size = info.size; }
- cached_address = media.map(&media, base, cached_size); - media.close(&media); + cached_address = rdev_mmap(&vpd, base, cached_size); if (cached_address) { *vpd_address = cached_address; *vpd_size = cached_size; diff --git a/src/vendorcode/google/chromeos/fmap.c b/src/vendorcode/google/chromeos/fmap.c deleted file mode 100644 index 21d439e..0000000 --- a/src/vendorcode/google/chromeos/fmap.c +++ /dev/null @@ -1,157 +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 - */ - -#include <stdint.h> -#include <stddef.h> -#include <string.h> -#include <console/console.h> -#include <cbfs.h> -#include "fmap.h" - -static int is_fmap_signature_valid(const struct fmap *fmap) -{ - const char reversed_sig[] = FMAP_REVERSED_SIGNATURE; - const char *p2 = reversed_sig + sizeof(FMAP_REVERSED_SIGNATURE) - 2; - const char *p1 = (char *)fmap; - - while (p2 >= reversed_sig) - if (*p1++ != *p2--) { - printk(BIOS_ERR, "No FMAP found at %p.\n", fmap); - return 1; - } - - printk(BIOS_DEBUG, "FMAP: Found "%s" version %d.%d at %p.\n", - fmap->name, fmap->ver_major, fmap->ver_minor, fmap); - printk(BIOS_DEBUG, "FMAP: base = %llx size = %x #areas = %d\n", - (unsigned long long)fmap->base, fmap->size, fmap->nareas); - - return 0; -} - -/* Find FMAP data structure in ROM. - * See http://code.google.com/p/flashmap/ for more information on FMAP. - */ -const struct fmap *fmap_find(void) -{ - /* FIXME: Get rid of the hard codes. The "easy" way would be to - * do a binary search, but since ROM accesses are slow, we don't - * want to spend a lot of time looking for the FMAP. An elegant - * solution would be to store a pointer to the FMAP in the CBFS - * master header; that would require some more changes to cbfstool - * and possibly cros_bundle_firmware. - */ - const struct fmap *fmap; - struct cbfs_media media; - size_t size; - - if (init_default_cbfs_media(&media)) { - printk(BIOS_ERR, "failed to init default cbfs media\n"); - return NULL; - } - - media.open(&media); - fmap = media.map(&media, CONFIG_FLASHMAP_OFFSET, sizeof(*fmap)); - - if (fmap == CBFS_MEDIA_INVALID_MAP_ADDRESS) { - printk(BIOS_ERR, "failed to map FMAP header\n"); - media.close(&media); - return NULL; - } - - if (is_fmap_signature_valid(fmap)) { - media.unmap(&media, fmap); - media.close(&media); - return NULL; - } - - size = sizeof(*fmap) + sizeof(struct fmap_area) * fmap->nareas; - media.unmap(&media, fmap); - fmap = media.map(&media, CONFIG_FLASHMAP_OFFSET, size); - - if (fmap == CBFS_MEDIA_INVALID_MAP_ADDRESS) { - printk(BIOS_ERR, "failed to map FMAP (size=%zu)\n", size); - media.unmap(&media, fmap); - media.close(&media); - return NULL; - } - - media.close(&media); - return fmap; -} - -const struct fmap_area *find_fmap_area(const struct fmap *fmap, - const char name[]) -{ - const struct fmap_area *area = NULL; - - if (fmap) { - int i; - for (i = 0; i < fmap->nareas; i++) { - if (!strcmp((const char *)fmap->areas[i].name, name)) { - area = &fmap->areas[i]; - break; - } - } - } - - if (area) { - printk(BIOS_DEBUG, "FMAP: area %s found\n", name); - printk(BIOS_DEBUG, "FMAP: offset: %x\n", area->offset); - printk(BIOS_DEBUG, "FMAP: size: %d bytes\n", area->size); - } else { - printk(BIOS_DEBUG, "FMAP: area %s not found\n", name); - } - - return area; -} - -int find_fmap_entry(const char name[], void **pointer) -{ - MAYBE_STATIC const struct fmap *fmap = NULL; - const struct fmap_area *area; - void *base = NULL; - - if (!fmap) - fmap = fmap_find(); - - area = find_fmap_area(fmap, name); - - if (!area) - return -1; - - /* Right now cros_bundle_firmware does not write a valid - * base address into the FMAP. Hence, if base is 0, assume - * 4GB-8MB as base address. - */ - if (fmap->base) { - base = (void *)(unsigned long)fmap->base; - printk(BIOS_DEBUG, "FMAP: %s base at %p\n", name, base); - } else { -#if CONFIG_ARCH_X86 - base = (void *)(0 - CONFIG_ROM_SIZE); - printk(BIOS_WARNING, "FMAP: No valid base address, using" - " 0x%p\n", base); -#endif - } - - *pointer = (void*) ((uintptr_t)base + area->offset); - printk(BIOS_DEBUG, "FMAP: %s at %p (offset %x)\n", - name, *pointer, area->offset); - return area->size; -} diff --git a/src/vendorcode/google/chromeos/fmap.h b/src/vendorcode/google/chromeos/fmap.h deleted file mode 100644 index 05d3fb6..0000000 --- a/src/vendorcode/google/chromeos/fmap.h +++ /dev/null @@ -1,79 +0,0 @@ -/* - * Copyright 2010, Google Inc. - * All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions are - * met: - * - * * Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * * Redistributions in binary form must reproduce the above - * copyright notice, this list of conditions and the following disclaimer - * in the documentation and/or other materials provided with the - * distribution. - * * Neither the name of Google Inc. nor the names of its - * contributors may be used to endorse or promote products derived from - * this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS - * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT - * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR - * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT - * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, - * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT - * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, - * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY - * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT - * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE - * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. - * - * Alternatively, this software may be distributed under the terms of the - * GNU General Public License ("GPL") version 2 as published by the Free - * Software Foundation. - */ - -#ifndef FLASHMAP_LIB_FMAP_H__ -#define FLASHMAP_LIB_FMAP_H__ - -#include <stdint.h> - -#define FMAP_REVERSED_SIGNATURE "__PAMF__" /* avoid magic number in .rodata */ -#define FMAP_VER_MAJOR 1 /* this header's FMAP minor version */ -#define FMAP_VER_MINOR 1 /* this header's FMAP minor version */ -#define FMAP_STRLEN 32 /* maximum length for strings, */ - /* including null-terminator */ - -enum fmap_flags { - FMAP_AREA_STATIC = 1 << 0, - FMAP_AREA_COMPRESSED = 1 << 1, - FMAP_AREA_RO = 1 << 2, -}; - -/* Mapping of volatile and static regions in firmware binary */ -struct fmap_area { - uint32_t offset; /* offset relative to base */ - uint32_t size; /* size in bytes */ - uint8_t name[FMAP_STRLEN]; /* descriptive name */ - uint16_t flags; /* flags for this area */ -} __attribute__((packed)); - -struct fmap { - uint8_t signature[8]; /* "__FMAP__" (0x5F5F464D41505F5F) */ - uint8_t ver_major; /* major version */ - uint8_t ver_minor; /* minor version */ - uint64_t base; /* address of the firmware binary */ - uint32_t size; /* size of firmware binary in bytes */ - uint8_t name[FMAP_STRLEN]; /* name of this firmware binary */ - uint16_t nareas; /* number of areas described by - fmap_areas[] below */ - struct fmap_area areas[]; -} __attribute__((packed)); - - -/* coreboot specific function prototypes */ -const struct fmap *fmap_find(void); -const struct fmap_area *find_fmap_area(const struct fmap *fmap, - const char name[]); -int find_fmap_entry(const char name[], void **pointer); -#endif /* FLASHMAP_LIB_FMAP_H__*/ diff --git a/src/vendorcode/google/chromeos/vboot2/vboot_handoff.c b/src/vendorcode/google/chromeos/vboot2/vboot_handoff.c index 9952c00..a20f85e 100644 --- a/src/vendorcode/google/chromeos/vboot2/vboot_handoff.c +++ b/src/vendorcode/google/chromeos/vboot2/vboot_handoff.c @@ -26,13 +26,13 @@ #include <cbmem.h> #include <console/console.h> #include <console/vtxprintf.h> +#include <fmap.h> #include <stdlib.h> #include <timestamp.h> #define NEED_VB20_INTERNALS /* TODO: remove me! */ #include <vb2_api.h> #include <vboot_struct.h> #include "../chromeos.h" -#include "../fmap.h" #include "../vboot_handoff.h" #include "misc.h"
diff --git a/src/vendorcode/google/chromeos/vboot_common.c b/src/vendorcode/google/chromeos/vboot_common.c index fba4676..3b7356a 100644 --- a/src/vendorcode/google/chromeos/vboot_common.c +++ b/src/vendorcode/google/chromeos/vboot_common.c @@ -22,27 +22,19 @@ #include <cbmem.h> #include <console/cbmem_console.h> #include <console/console.h> +#include <fmap.h> #include <reset.h> #include <stddef.h> #include <string.h>
#include "chromeos.h" -#include "fmap.h" #include "vboot_common.h" #include "vboot_handoff.h"
void vboot_locate_region(const char *name, struct region *region) { - const struct fmap_area *area; - - region->size = 0; - - area = find_fmap_area(fmap_find(), name); - - if (area != NULL) { - region->offset = area->offset; - region->size = area->size; - } + if (fmap_locate_area(name, region)) + region->size = 0; }
void *vboot_get_region(size_t offset, size_t size, void *dest)