diff options
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/Makefile.inc | 17 | ||||
| -rw-r--r-- | src/lib/cbfs.c | 334 | ||||
| -rw-r--r-- | src/lib/cbfs_boot_props.c | 66 | ||||
| -rw-r--r-- | src/lib/cbfs_core.c | 324 | ||||
| -rw-r--r-- | src/lib/cbfs_core.h | 47 | ||||
| -rw-r--r-- | src/lib/cbfs_spi.c | 72 | ||||
| -rw-r--r-- | src/lib/coreboot_table.c | 4 | ||||
| -rw-r--r-- | src/lib/hardwaremain.c | 2 | ||||
| -rw-r--r-- | src/lib/loaders/Makefile.inc | 27 | ||||
| -rw-r--r-- | src/lib/loaders/cbfs_payload_loader.c | 43 | ||||
| -rw-r--r-- | src/lib/loaders/cbfs_ramstage_loader.c | 56 | ||||
| -rw-r--r-- | src/lib/loaders/cbfs_romstage_loader.c | 31 | ||||
| -rw-r--r-- | src/lib/loaders/load_and_run_payload.c | 118 | ||||
| -rw-r--r-- | src/lib/loaders/load_and_run_ramstage.c | 109 | ||||
| -rw-r--r-- | src/lib/loaders/load_and_run_romstage.c | 85 | ||||
| -rw-r--r-- | src/lib/prog_loaders.c | 247 | ||||
| -rw-r--r-- | src/lib/rmodule.c | 54 | ||||
| -rw-r--r-- | src/lib/selfboot.c | 21 |
18 files changed, 565 insertions, 1092 deletions
diff --git a/src/lib/Makefile.inc b/src/lib/Makefile.inc index 5ec9de72ed..ebb3076e63 100644 --- a/src/lib/Makefile.inc +++ b/src/lib/Makefile.inc @@ -18,8 +18,10 @@ # subdirs-y += loaders +bootblock-y += prog_loaders.c bootblock-y += prog_ops.c -bootblock-y += cbfs.c cbfs_core.c +bootblock-y += cbfs.c +bootblock-y += cbfs_boot_props.c bootblock-$(CONFIG_COMMON_CBFS_SPI_WRAPPER) += cbfs_spi.c bootblock-$(CONFIG_GENERIC_GPIO_LIB) += gpio.c @@ -34,12 +36,13 @@ bootblock-y += region.c bootblock-y += boot_device.c bootblock-y += fmap.c +verstage-y += prog_loaders.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 += cbfs_boot_props.c verstage-y += memcmp.c verstage-$(CONFIG_COLLECT_TIMESTAMPS) += timestamp.c verstage-y += region.c @@ -57,6 +60,7 @@ verstage-$(CONFIG_GENERIC_UDELAY) += timer.c verstage-$(CONFIG_GENERIC_GPIO_LIB) += gpio.c verstage-y += mem_pool.c +romstage-y += prog_loaders.c romstage-y += prog_ops.c romstage-y += memchr.c romstage-y += memcmp.c @@ -66,7 +70,8 @@ $(foreach arch,$(ARCH_SUPPORTED),\ romstage-y += fmap.c romstage-$(CONFIG_I2C_TPM) += delay.c -romstage-y += cbfs.c cbfs_core.c +romstage-y += cbfs.c +romstage-y += cbfs_boot_props.c romstage-$(CONFIG_COMMON_CBFS_SPI_WRAPPER) += cbfs_spi.c romstage-$(CONFIG_COMPRESS_RAMSTAGE) += lzma.c lzmadecode.c romstage-$(CONFIG_PRIMITIVE_MEMTEST) += primitive_memtest.c @@ -87,6 +92,7 @@ endif romstage-$(CONFIG_GENERIC_UDELAY) += timer.c +ramstage-y += prog_loaders.c ramstage-y += prog_ops.c ramstage-y += hardwaremain.c ramstage-y += selfboot.c @@ -100,7 +106,8 @@ smm-$(CONFIG_SMM_TSEG) += malloc.c ramstage-y += delay.c ramstage-y += fallback_boot.c ramstage-y += compute_ip_checksum.c -ramstage-y += cbfs.c cbfs_core.c +ramstage-y += cbfs.c +ramstage-y += cbfs_boot_props.c ramstage-$(CONFIG_COMMON_CBFS_SPI_WRAPPER) += cbfs_spi.c ramstage-y += lzma.c lzmadecode.c ramstage-y += stack.c @@ -153,7 +160,7 @@ ramstage-y += boot_device.c smm-y += region.c smm-y += boot_device.c smm-y += fmap.c -smm-y += cbfs.c cbfs_core.c memcmp.c +smm-y += cbfs.c memcmp.c smm-$(CONFIG_COMPILER_GCC) += gcc.c bootblock-y += version.c diff --git a/src/lib/cbfs.c b/src/lib/cbfs.c index 00071f8934..23dfee70c9 100644 --- a/src/lib/cbfs.c +++ b/src/lib/cbfs.c @@ -1,8 +1,8 @@ /* * This file is part of the coreboot project. * - * Copyright (C) 2008, Jordan Crouse <jordan@cosmicpenguin.net> - * Copyright (C) 2013 The Chromium OS Authors. All rights reserved. + * Copyright (C) 2011 secunet Security Networks AG + * 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 @@ -18,192 +18,238 @@ * Foundation, Inc. */ +#include <assert.h> +#include <string.h> +#include <stdlib.h> +#include <boot_device.h> +#include <cbfs.h> +#include <endian.h> +#include <lib.h> +#include <symbols.h> + +#define ERROR(x...) printk(BIOS_ERR, "CBFS: " x) +#define LOG(x...) printk(BIOS_INFO, "CBFS: " x) +#if IS_ENABLED(CONFIG_DEBUG_CBFS) +#define DEBUG(x...) printk(BIOS_SPEW, "CBFS: " x) +#else +#define DEBUG(x...) +#endif -#include <program_loading.h> -#include "cbfs_core.h" - -#ifndef __SMM__ -static inline int tohex4(unsigned int c) +int cbfs_boot_locate(struct region_device *fh, const char *name, uint32_t *type) { - return (c <= 9) ? (c + '0') : (c - 10 + 'a'); -} + struct cbfsd cbfs; + struct region_device rdev; + const struct region_device *boot_dev; + struct cbfs_props props; -static void tohex16(unsigned int val, char* dest) -{ - dest[0] = tohex4(val>>12); - dest[1] = tohex4((val>>8) & 0xf); - dest[2] = tohex4((val>>4) & 0xf); - dest[3] = tohex4(val & 0xf); -} + boot_device_init(); -void *cbfs_load_optionrom(struct cbfs_media *media, uint16_t vendor, - uint16_t device, void *dest) -{ - char name[17] = "pciXXXX,XXXX.rom"; - struct cbfs_optionrom *orom; - uint8_t *src; + if (cbfs_boot_region_properties(&props)) + return -1; - tohex16(vendor, name+3); - tohex16(device, name+8); + /* All boot CBFS operations are performed using the RO devie. */ + boot_dev = boot_device_ro(); - orom = (struct cbfs_optionrom *) - cbfs_get_file_content(media, name, CBFS_TYPE_OPTIONROM, NULL); + if (boot_dev == NULL) + return -1; - if (orom == NULL) - return NULL; + if (rdev_chain(&rdev, boot_dev, props.offset, props.size)) + return -1; - /* They might have specified a dest address. If so, we can decompress. - * If not, there's not much hope of decompressing or relocating the rom. - * in the common case, the expansion rom is uncompressed, we - * pass 0 in for the dest, and all we have to do is find the rom and - * return a pointer to it. - */ + cbfs.rdev = &rdev; + cbfs.align = props.align; - /* BUG: the cbfstool is (not yet) including a cbfs_optionrom header */ - src = (uint8_t *)orom; // + sizeof(struct cbfs_optionrom); + return cbfs_locate(fh, &cbfs, name, type); +} - if (! dest) - return src; +void *cbfs_boot_map_with_leak(const char *name, uint32_t type, size_t *size) +{ + struct region_device fh; + size_t fsize; - if (!cbfs_decompress(ntohl(orom->compression), - src, - dest, - ntohl(orom->len))) + if (cbfs_boot_locate(&fh, name, &type)) return NULL; - return dest; + fsize = region_device_sz(&fh); + + if (size != NULL) + *size = fsize; + + return rdev_mmap(&fh, 0, fsize); } -int cbfs_load_prog_stage_by_offset(struct cbfs_media *media, - struct prog *prog, ssize_t offset) +int cbfs_locate(struct region_device *fh, const struct cbfsd *cbfs, + const char *name, uint32_t *type) { - struct cbfs_stage stage; - struct cbfs_media backing_store; + size_t offset; + const struct region_device *rd; + size_t align; + + offset = 0; + rd = cbfs->rdev; + align = cbfs->align; + + LOG("Locating '%s'\n", name); + + /* Try to scan the entire cbfs region looking for file name. */ + while (1) { + struct cbfs_file file; + const size_t fsz = sizeof(file); + char *fname; + int name_match; + size_t datasz; + + DEBUG("Checking offset %zx\n", offset); + + /* Can't read file. Nothing else to do but bail out. */ + if (rdev_readat(rd, &file, offset, fsz) != fsz) + break; + + if (memcmp(file.magic, CBFS_FILE_MAGIC, sizeof(file.magic))) { + offset++; + offset = ALIGN_UP(offset, align); + continue; + } - if (init_backing_media(&media, &backing_store)) - return -1; + file.len = ntohl(file.len); + file.type = ntohl(file.type); + file.offset = ntohl(file.offset); - if (cbfs_read(media, &stage, offset, sizeof(stage)) != sizeof(stage)) { - ERROR("ERROR: failed to read stage header\n"); - return -1; - } + /* See if names match. */ + fname = rdev_mmap(rd, offset + fsz, file.offset - fsz); - LOG("loading stage from %#zx @ 0x%llx (%d bytes), entry @ 0x%llx\n", - offset, stage.load, stage.memlen, stage.entry); + if (fname == NULL) + break; - /* Stages rely the below clearing so that the bss is initialized. */ - memset((void *)(uintptr_t)stage.load, 0, stage.memlen); + name_match = !strcmp(fname, name); + rdev_munmap(rd, fname); - if (stage.compression == CBFS_COMPRESS_NONE) { - if (cbfs_read(media, (void *)(uintptr_t)stage.load, - offset + sizeof(stage), stage.len) != stage.len) { - ERROR("ERROR: Reading stage failed.\n"); - return -1; + if (!name_match) { + DEBUG(" Unmatched '%s' at %zx\n", fname, offset); + offset += file.offset + file.len; + offset = ALIGN_UP(offset, align); + continue; } - } else { - void *data = media->map(media, offset + sizeof(stage), - stage.len); - if (data == CBFS_MEDIA_INVALID_MAP_ADDRESS) { - ERROR("ERROR: Mapping stage failed.\n"); - return -1; + + if (type != NULL && *type != file.type) { + DEBUG(" Unmatched type %x at %zx\n", file.type, offset); + offset += file.offset + file.len; + offset = ALIGN_UP(offset, align); + continue; } - if (!cbfs_decompress(stage.compression, data, - (void *)(uintptr_t)stage.load, stage.len)) - return -1; - media->unmap(media, data); - } - arch_segment_loaded(stage.load, stage.memlen, SEG_FINAL); - DEBUG("stage loaded\n"); + LOG("Found @ offset %zx size %x\n", offset, file.len); + /* File and type match. Create a chained region_device to + * represent the cbfs file. */ + offset += file.offset; + datasz = file.len; + if (rdev_chain(fh, rd, offset, datasz)) + break; - prog_set_area(prog, (void *)(uintptr_t)stage.load, stage.memlen); - prog_set_entry(prog, (void *)(uintptr_t)stage.entry, NULL); + /* Success. */ + return 0; + } - return 0; + LOG("'%s' not found.\n", name); + return -1; } -int cbfs_load_prog_stage(struct cbfs_media *media, struct prog *prog) +static size_t inflate(void *src, void *dst) { - struct cbfs_file file; - ssize_t offset; - struct cbfs_media backing_store; - - if (init_backing_media(&media, &backing_store)) - return -1; - - offset = cbfs_locate_file(media, &file, prog->name); - if (offset < 0 || file.type != CBFS_TYPE_STAGE) - return -1; + if (ENV_BOOTBLOCK || ENV_VERSTAGE) + return 0; + if (ENV_ROMSTAGE && !IS_ENABLED(CONFIG_COMPRESS_RAMSTAGE)) + return 0; + return ulzma(src, dst); +} - if (cbfs_load_prog_stage_by_offset(media, prog, offset) < 0) - return -1; +static inline int tohex4(unsigned int c) +{ + return (c <= 9) ? (c + '0') : (c - 10 + 'a'); +} - return 0; +static void tohex16(unsigned int val, char* dest) +{ + dest[0] = tohex4(val>>12); + dest[1] = tohex4((val>>8) & 0xf); + dest[2] = tohex4((val>>4) & 0xf); + dest[3] = tohex4(val & 0xf); } -void *cbfs_load_stage_by_offset(struct cbfs_media *media, ssize_t offset) +void *cbfs_boot_map_optionrom(uint16_t vendor, uint16_t device) { - struct prog prog = { - .name = NULL, - }; + char name[17] = "pciXXXX,XXXX.rom"; - if (cbfs_load_prog_stage_by_offset(media, &prog, offset) < 0) - return (void *)-1; + tohex16(vendor, name+3); + tohex16(device, name+8); - return prog_entry(&prog); + return cbfs_boot_map_with_leak(name, CBFS_TYPE_OPTIONROM, NULL); } -void *cbfs_load_stage(struct cbfs_media *media, const char *name) +void *cbfs_boot_load_stage_by_name(const char *name) { - struct prog prog = { + struct prog stage = { .name = name, }; + uint32_t type = CBFS_TYPE_STAGE; - if (cbfs_load_prog_stage(media, &prog) < 0) - return (void *)-1; + if (cbfs_boot_locate(&stage.rdev, name, &type)) + return NULL; - return prog_entry(&prog); -} + if (cbfs_prog_stage_load(&stage)) + return NULL; -/* Simple buffer */ - -void *cbfs_simple_buffer_map(struct cbfs_simple_buffer *buffer, - struct cbfs_media *media, - size_t offset, size_t count) { - void *address = buffer->buffer + buffer->allocated; - DEBUG("simple_buffer_map(offset=%zd, count=%zd): " - "allocated=%zd, size=%zd, last_allocate=%zd\n", - offset, count, buffer->allocated, buffer->size, - buffer->last_allocate); - if (buffer->allocated + count > buffer->size) { - ERROR("simple_buffer: no room to map %zd bytes from %#zx\n", - count, offset); - return CBFS_MEDIA_INVALID_MAP_ADDRESS; - } - if (media->read(media, address, offset, count) != count) { - ERROR("simple_buffer: fail to read %zd bytes from 0x%zx\n", - count, offset); - return CBFS_MEDIA_INVALID_MAP_ADDRESS; - } - buffer->allocated += count; - buffer->last_allocate = count; - return address; + return prog_entry(&stage); } -void *cbfs_simple_buffer_unmap(struct cbfs_simple_buffer *buffer, - const void *address) { - // TODO Add simple buffer management so we can free more than last - // allocated one. - DEBUG("simple_buffer_unmap(address=0x%p): " - "allocated=%zd, size=%zd, last_allocate=%zd\n", - address, buffer->allocated, buffer->size, - buffer->last_allocate); - if ((buffer->buffer + buffer->allocated - buffer->last_allocate) == - address) { - buffer->allocated -= buffer->last_allocate; - buffer->last_allocate = 0; - } - return NULL; -} +int cbfs_prog_stage_load(struct prog *pstage) +{ + struct cbfs_stage stage; + uint8_t *load; + void *entry; + size_t fsize; + size_t foffset; + const struct region_device *fh = &pstage->rdev; -#endif + if (rdev_readat(fh, &stage, 0, sizeof(stage)) != sizeof(stage)) + return 0; + + fsize = region_device_sz(fh); + fsize -= sizeof(stage); + foffset = 0; + foffset += sizeof(stage); + + assert(fsize == stage.len); + + /* Note: cbfs_stage fields are currently in the endianness of the + * running processor. */ + load = (void *)(uintptr_t)stage.load; + entry = (void *)(uintptr_t)stage.entry; + + if (stage.compression == CBFS_COMPRESS_NONE) { + if (rdev_readat(fh, load, foffset, fsize) != fsize) + return -1; + } else if (stage.compression == CBFS_COMPRESS_LZMA) { + void *map = rdev_mmap(fh, foffset, fsize); + + if (map == NULL) + return -1; + + fsize = inflate(map, load); + + rdev_munmap(fh, map); + + if (!fsize) + return -1; + } else + return -1; + + /* Clear area not covered by file. */ + memset(&load[fsize], 0, stage.memlen - fsize); + + arch_segment_loaded((uintptr_t)load, stage.memlen, SEG_FINAL); + prog_set_area(pstage, load, stage.memlen); + prog_set_entry(pstage, entry, NULL); + + return 0; +} diff --git a/src/lib/cbfs_boot_props.c b/src/lib/cbfs_boot_props.c new file mode 100644 index 0000000000..21e64d37a5 --- /dev/null +++ b/src/lib/cbfs_boot_props.c @@ -0,0 +1,66 @@ +/* + * 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. + */ + +#include <boot_device.h> +#include <cbfs.h> +#include <console/console.h> +#include <endian.h> +#include <region.h> + +/* This function is marked as weak to allow a particular platform to + * override the logic. This implementation should work for most devices. */ +int __attribute__((weak)) cbfs_boot_region_properties(struct cbfs_props *props) +{ + struct cbfs_header header; + const struct region_device *bdev; + int32_t rel_offset; + size_t offset; + + bdev = boot_device_ro(); + + if (bdev == NULL) + return -1; + + /* Find location of header using signed 32-bit offset from + * end of CBFS region. */ + offset = CONFIG_CBFS_SIZE - sizeof(int32_t); + if (rdev_readat(bdev, &rel_offset, offset, sizeof(int32_t)) < 0) + return -1; + + offset = CONFIG_CBFS_SIZE + rel_offset; + if (rdev_readat(bdev, &header, offset, sizeof(header)) < 0) + return -1; + + header.magic = ntohl(header.magic); + header.romsize = ntohl(header.romsize); + header.align = ntohl(header.align); + header.offset = ntohl(header.offset); + + if (header.magic != CBFS_HEADER_MAGIC) + return -1; + + props->align = header.align; + props->offset = header.offset; + props->size = header.romsize; + props->size -= props->offset; + + printk(BIOS_SPEW, "CBFS @ %zx size %zx\n", props->offset, props->size); + + return 0; +} diff --git a/src/lib/cbfs_core.c b/src/lib/cbfs_core.c deleted file mode 100644 index 9f45b3cedc..0000000000 --- a/src/lib/cbfs_core.c +++ /dev/null @@ -1,324 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2011 secunet Security Networks AG - * Copyright (C) 2013 The Chromium OS Authors. All rights reserved. - * - * Redistribution and use in source and binary forms, with or without - * modification, are permitted provided that the following conditions - * are met: - * 1. Redistributions of source code must retain the above copyright - * notice, this list of conditions and the following disclaimer. - * 2. 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. - * 3. The name of the author may not be used to endorse or promote products - * derived from this software without specific prior written permission. - * - * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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. - */ - -/* The CBFS core requires a couple of #defines or functions to adapt it to the - * target environment: - * - * CBFS_CORE_WITH_LZMA (must be #define) - * if defined, ulzma() must exist for decompression of data streams - * - * ERROR(x...) - * print an error message x (in printf format) - * - * LOG(x...) - * print a message x (in printf format) - * - * DEBUG(x...) - * print a debug message x (in printf format) - * - */ - -#include <cbfs.h> -#include <string.h> -#include <symbols.h> - -#if IS_ENABLED(CONFIG_MULTIPLE_CBFS_INSTANCES) -void cbfs_set_header_offset(size_t offset) -{ - _cbfs_header_offset[0] = offset; - LOG("header set to: %#zx\n", offset); -} - -static size_t get_header_offset(void) -{ - return _cbfs_header_offset[0]; -} -#else -static size_t get_header_offset(void) -{ - return 0; -} -#endif - -#include "cbfs_core.h" - -/* returns a pointer to CBFS master header, or CBFS_HEADER_INVALID_ADDRESS - * on failure */ -const struct cbfs_header *cbfs_get_header(struct cbfs_media *media) -{ - size_t offset; - const struct cbfs_header *header; - struct cbfs_media default_media; - - if (media == CBFS_DEFAULT_MEDIA) { - media = &default_media; - if (init_default_cbfs_media(media) != 0) { - ERROR("Failed to initialize default media.\n"); - return CBFS_HEADER_INVALID_ADDRESS; - } - } - media->open(media); - - /* TODO: allow negative offsets from the end of the CBFS image at media - * layer (like libpayload) so we can combine these two cases. */ - if (IS_ENABLED(CONFIG_ARCH_X86)) { - offset = *(int32_t *)(uintptr_t)0xfffffffc; - header = media->map(media, offset, sizeof(*header)); - } else { - - offset = get_header_offset(); - - if (!offset) { - int32_t rel_offset; - size_t cbfs_top = CONFIG_CBFS_SIZE; - DEBUG("CBFS top at offset: 0x%zx\n", cbfs_top); - if (!media->read(media, &rel_offset, cbfs_top - - sizeof(int32_t), - sizeof(int32_t))) { - ERROR("Could not read master header offset!\n"); - media->close(media); - return CBFS_HEADER_INVALID_ADDRESS; - } - offset = cbfs_top + rel_offset; - } - header = media->map(media, offset, sizeof(*header)); - } - DEBUG("CBFS header offset: 0x%zx/0x%x\n", offset, CONFIG_ROM_SIZE); - media->close(media); - - if (header == CBFS_MEDIA_INVALID_MAP_ADDRESS) { - ERROR("Failed to load CBFS header from 0x%zx\n", offset); - return CBFS_HEADER_INVALID_ADDRESS; - } - - if (CBFS_HEADER_MAGIC != ntohl(header->magic)) { - ERROR("Could not find valid CBFS master header at %#zx: " - "magic %#.8x vs %#.8x.\n", offset, CBFS_HEADER_MAGIC, - ntohl(header->magic)); - if (header->magic == 0xffffffff) { - ERROR("Maybe ROM is not mapped properly?\n"); - } - return CBFS_HEADER_INVALID_ADDRESS; - } - return header; -} - - -int init_backing_media(struct cbfs_media **media, struct cbfs_media *backing) -{ - if (*media == CBFS_DEFAULT_MEDIA) { - *media = backing; - if (init_default_cbfs_media(*media) != 0) { - ERROR("Failed to initialize default media.\n"); - return -1; - } - } - return 0; -} - -/* public API starts here*/ -ssize_t cbfs_locate_file(struct cbfs_media *media, struct cbfs_file *file, - const char *name) -{ - const char *file_name; - uint32_t offset, align, romsize, name_len; - const struct cbfs_header *header; - struct cbfs_media default_media; - - if (init_backing_media(&media, &default_media)) - return -1; - - if (CBFS_HEADER_INVALID_ADDRESS == (header = cbfs_get_header(media))) - return -1; - - // Logical offset (for source media) of first file. - offset = ntohl(header->offset); - align = ntohl(header->align); - romsize = ntohl(header->romsize); - - // TODO Add a "size" in CBFS header for a platform independent way to - // determine the end of CBFS data. -#if defined(CONFIG_ARCH_X86) && CONFIG_ARCH_X86 - // resolve actual length of ROM used for CBFS components - // the bootblock size was not taken into account - romsize -= ntohl(header->bootblocksize); - - // fine tune the length to handle alignment positioning. - // using (bootblock size) % align, to derive the - // number of bytes the bootblock is off from the alignment size. - if ((ntohl(header->bootblocksize) % align)) - romsize -= (align - (ntohl(header->bootblocksize) % align)); - else - romsize -= 1; -#endif - - DEBUG("CBFS location: 0x%x~0x%x, align: %d\n", offset, romsize, align); - DEBUG("Looking for '%s' starting from 0x%x.\n", name, offset); - - media->open(media); - while (offset < romsize && - media->read(media, file, offset, sizeof(*file)) == sizeof(*file)) { - if (memcmp(CBFS_FILE_MAGIC, file->magic, - sizeof(file->magic)) != 0) { - uint32_t new_align = align; - if (offset % align) - new_align += align - (offset % align); - LOG("WARNING: No file header found at 0x%x - " - "try next aligned address: 0x%x.\n", offset, - offset + new_align); - offset += new_align; - continue; - } - - file->len = ntohl(file->len); - file->type= ntohl(file->type); - file->offset = ntohl(file->offset); - - name_len = file->offset - sizeof(*file); - DEBUG(" - load entry 0x%x file name (%d bytes)...\n", offset, - name_len); - - // load file name (arbitrary length). - file_name = (const char *)media->map( - media, offset + sizeof(*file), name_len); - if (file_name == CBFS_MEDIA_INVALID_MAP_ADDRESS) { - ERROR("ERROR: Failed to get filename: 0x%x.\n", offset); - } else if (strcmp(file_name, name) == 0) { - DEBUG("Found file (offset=0x%x, len=%d).\n", - offset + file->offset, file->len); - media->unmap(media, file_name); - return offset + file->offset; - } else { - DEBUG(" (unmatched file @0x%x: %s)\n", offset, - file_name); - media->unmap(media, file_name); - } - - // Move to next file. - offset += file->len + file->offset; - if (offset % align) - offset += align - (offset % align); - } - media->close(media); - LOG("WARNING: '%s' not found.\n", name); - return -1; -} - -size_t cbfs_read(struct cbfs_media *media, void *dest, size_t offset, - size_t count) -{ - struct cbfs_media default_media; - size_t nread; - - if (init_backing_media(&media, &default_media)) - return 0; - - media->open(media); - nread = media->read(media, dest, offset, count); - media->close(media); - - return nread; -} - -struct cbfs_file *cbfs_get_file(struct cbfs_media *media, const char *name) -{ - struct cbfs_media default_media; - struct cbfs_file file, *file_ptr; - ssize_t offset; - - if (init_backing_media(&media, &default_media)) - return NULL; - - offset = cbfs_locate_file(media, &file, name); - if (offset < 0) - return NULL; - - /* Map both the metadata and the file contents. */ - media->open(media); - offset -= file.offset; - file_ptr = media->map(media, offset, file.offset + file.len); - media->close(media); - - if (file_ptr == CBFS_MEDIA_INVALID_MAP_ADDRESS) { - ERROR("ERROR: Mapping %s failed.\n", name); - return NULL; - } - - return file_ptr; -} - -void *cbfs_get_file_content(struct cbfs_media *media, const char *name, - int type, size_t *sz) -{ - struct cbfs_file *file = cbfs_get_file(media, name); - - if (sz) - *sz = 0; - - if (file == NULL) { - ERROR("Could not find file '%s'.\n", name); - return NULL; - } - - if (ntohl(file->type) != type) { - ERROR("File '%s' is of type %x, but we requested %x.\n", name, - ntohl(file->type), type); - return NULL; - } - - if (sz) - *sz = ntohl(file->len); - - return (void *)CBFS_SUBHEADER(file); -} - -int cbfs_decompress(int algo, void *src, void *dst, int len) -{ - switch (algo) { - case CBFS_COMPRESS_NONE: - /* Reads need to be aligned at 4 bytes to avoid - poor flash performance. */ - while (len && ((uintptr_t)src & 3)) { - *(u8*)dst++ = *(u8*)src++; - len--; - } - memmove(dst, src, len); - return len; -#ifdef CBFS_CORE_WITH_LZMA - case CBFS_COMPRESS_LZMA: - return ulzma(src, dst); -#endif - default: - ERROR("tried to decompress %d bytes with algorithm #%x," - "but that algorithm id is unsupported.\n", len, - algo); - return 0; - } -} diff --git a/src/lib/cbfs_core.h b/src/lib/cbfs_core.h deleted file mode 100644 index f9aeaa8069..0000000000 --- a/src/lib/cbfs_core.h +++ /dev/null @@ -1,47 +0,0 @@ -#ifndef __LIB_CBFS_CORE -#define __LIB_CBFS_CORE - -#include <cbfs.h> -#include <string.h> - -#ifdef LIBPAYLOAD -# include <libpayload-config.h> -# ifdef CONFIG_LZMA -# include <lzma.h> -# define CBFS_CORE_WITH_LZMA -# endif -# define CBFS_MINI_BUILD -#elif defined(__SMM__) -# define CBFS_MINI_BUILD -#elif defined(__BOOTBLOCK__) - /* No LZMA in boot block. */ -#elif defined(__VERSTAGE__) - /* No LZMA in verstage. */ -#elif defined(__PRE_RAM__) && !CONFIG_COMPRESS_RAMSTAGE - /* No LZMA in romstage if ramstage is not compressed. */ -#else -# define CBFS_CORE_WITH_LZMA -# include <lib.h> -#endif - -#include <cbfs.h> -#include <string.h> -#include <cbmem.h> - -#ifdef LIBPAYLOAD -# include <stdio.h> -# define DEBUG(x...) -# define LOG(x...) printf(x) -# define ERROR(x...) printf(x) -#else -# include <console/console.h> -# define ERROR(x...) printk(BIOS_ERR, "CBFS: " x) -# define LOG(x...) printk(BIOS_INFO, "CBFS: " x) -# if CONFIG_DEBUG_CBFS -# define DEBUG(x...) printk(BIOS_SPEW, "CBFS: " x) -# else -# define DEBUG(x...) -# endif -#endif - -#endif /* __LIB_CBFS_CORE */ diff --git a/src/lib/cbfs_spi.c b/src/lib/cbfs_spi.c index 6758220dfd..5b5aaff053 100644 --- a/src/lib/cbfs_spi.c +++ b/src/lib/cbfs_spi.c @@ -24,8 +24,6 @@ */ #include <boot_device.h> -#include <cbfs.h> -#include <region.h> #include <spi_flash.h> #include <symbols.h> @@ -69,73 +67,3 @@ const struct region_device *boot_device_ro(void) return &mdev.rdev; } - -static int cbfs_media_open(struct cbfs_media *media) -{ - return 0; -} - -static int cbfs_media_close(struct cbfs_media *media) -{ - return 0; -} - -static size_t cbfs_media_read(struct cbfs_media *media, - void *dest, size_t offset, - size_t count) -{ - const struct region_device *boot_dev; - - boot_dev = media->context; - - if (rdev_readat(boot_dev, dest, offset, count) < 0) - return 0; - - return count; -} - -static void *cbfs_media_map(struct cbfs_media *media, - size_t offset, size_t count) -{ - const struct region_device *boot_dev; - void *ptr; - - boot_dev = media->context; - - ptr = rdev_mmap(boot_dev, offset, count); - - if (ptr == NULL) - return (void *)-1; - - return ptr; -} - -static void *cbfs_media_unmap(struct cbfs_media *media, - const void *address) -{ - const struct region_device *boot_dev; - - boot_dev = media->context; - - rdev_munmap(boot_dev, (void *)address); - - return NULL; -} - -int init_default_cbfs_media(struct cbfs_media *media) -{ - boot_device_init(); - - media->context = (void *)boot_device_ro(); - - if (media->context == NULL) - return -1; - - media->open = cbfs_media_open; - media->close = cbfs_media_close; - media->read = cbfs_media_read; - media->map = cbfs_media_map; - media->unmap = cbfs_media_unmap; - - return 0; -} diff --git a/src/lib/coreboot_table.c b/src/lib/coreboot_table.c index b1fbef6026..f7fb2bb54a 100644 --- a/src/lib/coreboot_table.c +++ b/src/lib/coreboot_table.c @@ -396,8 +396,8 @@ unsigned long write_coreboot_table( #if CONFIG_USE_OPTION_TABLE { - struct cmos_option_table *option_table = cbfs_get_file_content( - CBFS_DEFAULT_MEDIA, "cmos_layout.bin", + struct cmos_option_table *option_table = + cbfs_boot_map_with_leak("cmos_layout.bin", CBFS_COMPONENT_CMOS_LAYOUT, NULL); if (option_table) { struct lb_record *rec_dest = lb_new_record(head); diff --git a/src/lib/hardwaremain.c b/src/lib/hardwaremain.c index 80f677695c..56f3f29f97 100644 --- a/src/lib/hardwaremain.c +++ b/src/lib/hardwaremain.c @@ -228,8 +228,6 @@ static boot_state_t bs_write_tables(void *arg) static boot_state_t bs_payload_load(void *arg) { - timestamp_add_now(TS_LOAD_PAYLOAD); - payload_load(); return BS_PAYLOAD_BOOT; diff --git a/src/lib/loaders/Makefile.inc b/src/lib/loaders/Makefile.inc deleted file mode 100644 index ef5af6a7aa..0000000000 --- a/src/lib/loaders/Makefile.inc +++ /dev/null @@ -1,27 +0,0 @@ -# -# This file is part of the coreboot project. -# -# Copyright (C) 2014 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. -# - -bootblock-y += load_and_run_romstage.c -bootblock-y += cbfs_romstage_loader.c -romstage-y += cbfs_ramstage_loader.c -romstage-y += load_and_run_ramstage.c -ramstage-y += cbfs_payload_loader.c -ramstage-y += load_and_run_payload.c -verstage-y += cbfs_romstage_loader.c -verstage-y += load_and_run_romstage.c diff --git a/src/lib/loaders/cbfs_payload_loader.c b/src/lib/loaders/cbfs_payload_loader.c deleted file mode 100644 index 8e790a2952..0000000000 --- a/src/lib/loaders/cbfs_payload_loader.c +++ /dev/null @@ -1,43 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014 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 <cbfs.h> -#include <program_loading.h> - -static int cbfs_locate_payload(struct prog *payload) -{ - void *buffer; - size_t size; - const int type = CBFS_TYPE_PAYLOAD; - - buffer = cbfs_get_file_content(CBFS_DEFAULT_MEDIA, payload->name, - type, &size); - - if (buffer == NULL) - return -1; - - prog_set_area(payload, buffer, size); - - return 0; -} - -const struct prog_loader_ops cbfs_payload_loader = { - .name = "CBFS", - .prepare = cbfs_locate_payload, -}; diff --git a/src/lib/loaders/cbfs_ramstage_loader.c b/src/lib/loaders/cbfs_ramstage_loader.c deleted file mode 100644 index acbc6c0afe..0000000000 --- a/src/lib/loaders/cbfs_ramstage_loader.c +++ /dev/null @@ -1,56 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2008-2009 coresystems GmbH - * Copyright (C) 2014 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 <console/console.h> -#include <cbfs.h> -#include <program_loading.h> - -#if CONFIG_RELOCATABLE_RAMSTAGE -#include <rmodule.h> -#include <cbmem.h> - -static int cbfs_load_ramstage(struct prog *ramstage) -{ - struct rmod_stage_load rmod_ram = { - .cbmem_id = CBMEM_ID_RAMSTAGE, - .prog = ramstage, - }; - - if (rmodule_stage_load_from_cbfs(&rmod_ram)) { - printk(BIOS_DEBUG, "Could not load ramstage.\n"); - return -1; - } - - return 0; -} - -#else /* CONFIG_RELOCATABLE_RAMSTAGE */ - -static int cbfs_load_ramstage(struct prog *ramstage) -{ - return cbfs_load_prog_stage(CBFS_DEFAULT_MEDIA, ramstage); - -} - -#endif /* CONFIG_RELOCATABLE_RAMSTAGE */ - -const struct prog_loader_ops cbfs_ramstage_loader = { - .name = "CBFS", - .prepare = cbfs_load_ramstage, -}; diff --git a/src/lib/loaders/cbfs_romstage_loader.c b/src/lib/loaders/cbfs_romstage_loader.c deleted file mode 100644 index e5b42158f8..0000000000 --- a/src/lib/loaders/cbfs_romstage_loader.c +++ /dev/null @@ -1,31 +0,0 @@ -/* - * 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. - */ - -#include <cbfs.h> -#include <program_loading.h> - -static int cbfs_load_romstage(struct prog *romstage) -{ - return cbfs_load_prog_stage(CBFS_DEFAULT_MEDIA, romstage); -} - -const struct prog_loader_ops cbfs_romstage_loader = { - .name = "CBFS", - .prepare = cbfs_load_romstage, -}; diff --git a/src/lib/loaders/load_and_run_payload.c b/src/lib/loaders/load_and_run_payload.c deleted file mode 100644 index 6616110319..0000000000 --- a/src/lib/loaders/load_and_run_payload.c +++ /dev/null @@ -1,118 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014 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 <stdint.h> -#include <stdlib.h> -#include <cbmem.h> -#include <console/console.h> -#include <fallback.h> -#include <lib.h> -#include <program_loading.h> -#include <symbols.h> -#include <timestamp.h> - -extern const struct prog_loader_ops vboot_loader; -extern const struct prog_loader_ops cbfs_payload_loader; - -static const struct prog_loader_ops *payload_ops[] = { -#if CONFIG_VBOOT_VERIFY_FIRMWARE - &vboot_loader, -#endif - &cbfs_payload_loader, -}; - -static struct prog global_payload = { - .name = CONFIG_CBFS_PREFIX "/payload", - .type = PROG_PAYLOAD, -}; - -void __attribute__((weak)) mirror_payload(struct prog *payload) -{ - return; -} - -void payload_load(void) -{ - int i; - const struct prog_loader_ops *ops; - struct prog *payload = &global_payload; - - for (i = 0; i < ARRAY_SIZE(payload_ops); i++) { - /* Default loader state is active. */ - int ret = 1; - - ops = payload_ops[i]; - - if (ops->is_loader_active != NULL) - ret = ops->is_loader_active(payload); - - if (ret == 0) { - printk(BIOS_DEBUG, "%s payload loader inactive.\n", - ops->name); - continue; - } else if (ret < 0) { - printk(BIOS_DEBUG, "%s payload loader failure.\n", - ops->name); - continue; - } - - if (ops->prepare(payload) < 0) { - printk(BIOS_DEBUG, "%s: could not locate payload.\n", - ops->name); - continue; - } - printk(BIOS_DEBUG, "%s: located payload @ %p, %zu bytes.\n", - ops->name, prog_start(payload), prog_size(payload)); - break; - } - - if (i == ARRAY_SIZE(payload_ops)) - goto out; - - mirror_payload(payload); - - /* Pass cbtables to payload if architecture desires it. */ - prog_set_entry(payload, selfload(payload), - cbmem_find(CBMEM_ID_CBTABLE)); - -out: - if (prog_entry(payload) == NULL) - die("Payload not loaded.\n"); -} - -void payload_run(void) -{ - struct prog *payload = &global_payload; - - /* Reset to booting from this image as late as possible */ - boot_successful(); - - printk(BIOS_DEBUG, "Jumping to boot code at %p(%p)\n", - prog_entry(payload), prog_entry_arg(payload)); - post_code(POST_ENTER_ELF_BOOT); - - timestamp_add_now(TS_SELFBOOT_JUMP); - - /* Before we go off to run the payload, see if - * we stayed within our bounds. - */ - checkstack(_estack, 0); - - prog_run(payload); -} diff --git a/src/lib/loaders/load_and_run_ramstage.c b/src/lib/loaders/load_and_run_ramstage.c deleted file mode 100644 index 47637b85fc..0000000000 --- a/src/lib/loaders/load_and_run_ramstage.c +++ /dev/null @@ -1,109 +0,0 @@ -/* - * This file is part of the coreboot project. - * - * Copyright (C) 2014 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 <stdlib.h> -#include <console/console.h> -#include <arch/stages.h> -#include <cbfs.h> -#include <program_loading.h> -#include <romstage_handoff.h> -#include <stage_cache.h> -#include <timestamp.h> - -extern const struct prog_loader_ops cbfs_ramstage_loader; -extern const struct prog_loader_ops vboot_loader; - -static const struct prog_loader_ops *loaders[] = { -#if CONFIG_VBOOT_VERIFY_FIRMWARE - &vboot_loader, -#endif - &cbfs_ramstage_loader, -}; - -void __attribute__((weak)) stage_cache_add(int stage_id, struct prog *stage) {} -void __attribute__((weak)) stage_cache_load_stage(int stage_id, - struct prog *stage) {} -void __attribute__((weak)) ramstage_cache_invalid(void) {} - -static void load_ramstage(const struct prog_loader_ops *ops, - struct prog *ramstage) -{ - timestamp_add_now(TS_START_COPYRAM); - - if (ops->prepare(ramstage)) - return; - - stage_cache_add(STAGE_RAMSTAGE, ramstage); - - timestamp_add_now(TS_END_COPYRAM); - - prog_run(ramstage); -} - -static void run_ramstage_from_resume(struct romstage_handoff *handoff, - struct prog *ramstage) -{ - if (handoff != NULL && handoff->s3_resume) { - /* Load the cached ramstage to runtime location. */ - stage_cache_load_stage(STAGE_RAMSTAGE, ramstage); - - if (prog_entry(ramstage) != NULL) { - printk(BIOS_DEBUG, "Jumping to image.\n"); - prog_run(ramstage); - } - ramstage_cache_invalid(); - } -} - -void run_ramstage(void) -{ - const struct prog_loader_ops *ops; - int i; - struct prog ramstage = { - .name = CONFIG_CBFS_PREFIX "/ramstage", - .type = PROG_RAMSTAGE, - }; - - run_ramstage_from_resume(romstage_handoff_find_or_add(), &ramstage); - - for (i = 0; i < ARRAY_SIZE(loaders); i++) { - /* Default loader state is active. */ - int ret = 1; - - ops = loaders[i]; - - if (ops->is_loader_active != NULL) - ret = ops->is_loader_active(&ramstage); - - if (ret == 0) { - printk(BIOS_DEBUG, "%s ramstage loader inactive.\n", - ops->name); - continue; - } else if (ret < 0) { - printk(BIOS_DEBUG, "%s ramstage loader failure.\n", - ops->name); - continue; - } - - printk(BIOS_DEBUG, "%s ramstage loader active.\n", ops->name); - load_ramstage(ops, &ramstage); - } - - die("Ramstage was not loaded!\n"); -} diff --git a/src/lib/loaders/load_and_run_romstage.c b/src/lib/loaders/load_and_run_romstage.c deleted file mode 100644 index dfcb8597dc..0000000000 --- a/src/lib/loaders/load_and_run_romstage.c +++ /dev/null @@ -1,85 +0,0 @@ -/* - * 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. - */ - - -#include <stdlib.h> -#include <console/console.h> -#include <arch/stages.h> -#include <cbfs.h> -#include <halt.h> -#include <program_loading.h> -#include <rules.h> -#include <timestamp.h> - -extern const struct prog_loader_ops cbfs_romstage_loader; -extern const struct prog_loader_ops vboot_loader; - -static const struct prog_loader_ops *loaders[] = { -#if CONFIG_VBOOT_VERIFY_FIRMWARE - &vboot_loader, -#endif -#if !ENV_VERSTAGE || (ENV_VERSTAGE && !CONFIG_RETURN_FROM_VERSTAGE) - &cbfs_romstage_loader, -#endif -}; - -void run_romstage(void) -{ - int i; - struct prog romstage = { - .name = CONFIG_CBFS_PREFIX "/romstage", - .type = PROG_ROMSTAGE, - }; - - for (i = 0; i < ARRAY_SIZE(loaders); i++) { - /* Default loader state is active. */ - int ret = 1; - const struct prog_loader_ops *ops; - - ops = loaders[i]; - - if (ops->is_loader_active != NULL) - ret = ops->is_loader_active(&romstage); - - if (ret == 0) { - printk(BIOS_DEBUG, "%s romstage loader inactive.\n", - ops->name); - continue; - } else if (ret < 0) { - printk(BIOS_DEBUG, "%s romstage loader failure.\n", - ops->name); - continue; - } - - printk(BIOS_DEBUG, "%s romstage loader active.\n", ops->name); - - timestamp_add_now(TS_START_COPYROM); - - if (ops->prepare(&romstage)) - continue; - - timestamp_add_now(TS_END_COPYROM); - - prog_run(&romstage); - } - - if (IS_ENABLED(CONFIG_BOOTBLOCK_CONSOLE)) - die("Couldn't load romstage.\n"); - halt(); -} diff --git a/src/lib/prog_loaders.c b/src/lib/prog_loaders.c new file mode 100644 index 0000000000..881cd99794 --- /dev/null +++ b/src/lib/prog_loaders.c @@ -0,0 +1,247 @@ +/* + * 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. + */ + + +#include <stdlib.h> +#include <arch/stages.h> +#include <boot_device.h> +#include <cbfs.h> +#include <cbmem.h> +#include <console/console.h> +#include <fallback.h> +#include <halt.h> +#include <lib.h> +#include <program_loading.h> +#include <romstage_handoff.h> +#include <rmodule.h> +#include <rules.h> +#include <stage_cache.h> +#include <symbols.h> +#include <timestamp.h> + +#define DEFAULT_CBFS_LOADER_PRESENT \ + (!ENV_VERSTAGE || (ENV_VERSTAGE && !CONFIG_RETURN_FROM_VERSTAGE)) + +#if DEFAULT_CBFS_LOADER_PRESENT +static int cbfs_boot_prog_locate(struct prog *prog) +{ + return cbfs_boot_locate(&prog->rdev, prog->name, NULL); +} + +static const struct prog_loader_ops cbfs_default_loader = { + .locate = cbfs_boot_prog_locate, +}; +#endif + +extern const struct prog_loader_ops vboot_loader; + +static const struct prog_loader_ops *loaders[] = { +#if CONFIG_VBOOT_VERIFY_FIRMWARE + &vboot_loader, +#endif +#if DEFAULT_CBFS_LOADER_PRESENT + &cbfs_default_loader, +#endif +}; + +int prog_locate(struct prog *prog) +{ + int i; + + boot_device_init(); + + for (i = 0; i < ARRAY_SIZE(loaders); i++) { + /* Default loader state is active. */ + int ret = 1; + const struct prog_loader_ops *ops; + + ops = loaders[i]; + + if (ops->is_loader_active != NULL) + ret = ops->is_loader_active(prog); + + if (ret == 0) { + printk(BIOS_DEBUG, "%s loader inactive.\n", + ops->name); + continue; + } else if (ret < 0) { + printk(BIOS_DEBUG, "%s loader failure.\n", + ops->name); + continue; + } + + printk(BIOS_DEBUG, "%s loader active.\n", ops->name); + + if (ops->locate(prog)) + continue; + + printk(BIOS_DEBUG, "'%s' located at offset: %zx size: %zx\n", + prog->name, region_device_offset(&prog->rdev), + region_device_sz(&prog->rdev)); + + return 0; + } + + return -1; +} + +void run_romstage(void) +{ + struct prog romstage = { + .name = CONFIG_CBFS_PREFIX "/romstage", + .type = PROG_ROMSTAGE, + }; + + /* The only time the default CBFS loader isn't present is during + * VERSTAGE in which it returns back to the calling stage. */ + if (!DEFAULT_CBFS_LOADER_PRESENT) + return; + + if (prog_locate(&romstage)) + goto fail; + + timestamp_add_now(TS_START_COPYROM); + + if (cbfs_prog_stage_load(&romstage)) + goto fail; + + timestamp_add_now(TS_END_COPYROM); + + prog_run(&romstage); + +fail: + if (IS_ENABLED(CONFIG_BOOTBLOCK_CONSOLE)) + die("Couldn't load romstage.\n"); + halt(); +} + +void __attribute__((weak)) stage_cache_add(int stage_id, struct prog *stage) {} +void __attribute__((weak)) stage_cache_load_stage(int stage_id, + struct prog *stage) {} +void __attribute__((weak)) ramstage_cache_invalid(void) {} + +static void run_ramstage_from_resume(struct romstage_handoff *handoff, + struct prog *ramstage) +{ + if (handoff != NULL && handoff->s3_resume) { + /* Load the cached ramstage to runtime location. */ + stage_cache_load_stage(STAGE_RAMSTAGE, ramstage); + + if (prog_entry(ramstage) != NULL) { + printk(BIOS_DEBUG, "Jumping to image.\n"); + prog_run(ramstage); + } + ramstage_cache_invalid(); + } +} + +static int load_relocatable_ramstage(struct prog *ramstage) +{ + struct rmod_stage_load rmod_ram = { + .cbmem_id = CBMEM_ID_RAMSTAGE, + .prog = ramstage, + }; + + return rmodule_stage_load(&rmod_ram); +} + +void run_ramstage(void) +{ + struct prog ramstage = { + .name = CONFIG_CBFS_PREFIX "/ramstage", + .type = PROG_RAMSTAGE, + }; + + /* Only x86 systems currently take the same firmware path on resume. */ + if (IS_ENABLED(CONFIG_ARCH_X86) && IS_ENABLED(CONFIG_EARLY_CBMEM_INIT)) + run_ramstage_from_resume(romstage_handoff_find_or_add(), + &ramstage); + + if (prog_locate(&ramstage)) + goto fail; + + timestamp_add_now(TS_START_COPYRAM); + + if (IS_ENABLED(CONFIG_RELOCATABLE_RAMSTAGE)) { + if (load_relocatable_ramstage(&ramstage)) + goto fail; + } else if (cbfs_prog_stage_load(&ramstage)) + goto fail; + + stage_cache_add(STAGE_RAMSTAGE, &ramstage); + + timestamp_add_now(TS_END_COPYRAM); + + prog_run(&ramstage); + +fail: + die("Ramstage was not loaded!\n"); +} + +static struct prog global_payload = { + .name = CONFIG_CBFS_PREFIX "/payload", + .type = PROG_PAYLOAD, +}; + +void __attribute__((weak)) mirror_payload(struct prog *payload) +{ + return; +} + +void payload_load(void) +{ + struct prog *payload = &global_payload; + + timestamp_add_now(TS_LOAD_PAYLOAD); + + if (prog_locate(payload)) + goto out; + + mirror_payload(payload); + + /* Pass cbtables to payload if architecture desires it. */ + prog_set_entry(payload, selfload(payload), + cbmem_find(CBMEM_ID_CBTABLE)); + +out: + if (prog_entry(payload) == NULL) + die("Payload not loaded.\n"); +} + +void payload_run(void) +{ + struct prog *payload = &global_payload; + + /* Reset to booting from this image as late as possible */ + boot_successful(); + + printk(BIOS_DEBUG, "Jumping to boot code at %p(%p)\n", + prog_entry(payload), prog_entry_arg(payload)); + + post_code(POST_ENTER_ELF_BOOT); + + timestamp_add_now(TS_SELFBOOT_JUMP); + + /* Before we go off to run the payload, see if + * we stayed within our bounds. + */ + checkstack(_estack, 0); + + prog_run(payload); +} diff --git a/src/lib/rmodule.c b/src/lib/rmodule.c index 359272fc2b..35893d9d96 100644 --- a/src/lib/rmodule.c +++ b/src/lib/rmodule.c @@ -22,6 +22,7 @@ #include <stdint.h> #include <stdlib.h> #include <string.h> +#include <lib.h> #include <console/console.h> #include <program_loading.h> #include <rmodule.h> @@ -252,34 +253,60 @@ int rmodule_calc_region(unsigned int region_alignment, size_t rmodule_size, return region_alignment - sizeof(struct rmodule_header); } -int rmodule_stage_load(struct rmod_stage_load *rsl, struct cbfs_stage *stage) +int rmodule_stage_load(struct rmod_stage_load *rsl) { struct rmodule rmod_stage; size_t region_size; char *stage_region; int rmodule_offset; int load_offset; + struct cbfs_stage stage; + void *rmod_loc; + struct region_device *fh; - if (stage == NULL || rsl->prog == NULL || rsl->prog->name == NULL) + if (rsl->prog == NULL || rsl->prog->name == NULL) + return -1; + + fh = &rsl->prog->rdev; + + if (rdev_readat(fh, &stage, 0, sizeof(stage)) != sizeof(stage)) return -1; rmodule_offset = rmodule_calc_region(DYN_CBMEM_ALIGN_SIZE, - stage->memlen, ®ion_size, &load_offset); + stage.memlen, ®ion_size, &load_offset); stage_region = cbmem_add(rsl->cbmem_id, region_size); if (stage_region == NULL) return -1; + rmod_loc = &stage_region[rmodule_offset]; + printk(BIOS_INFO, "Decompressing stage %s @ 0x%p (%d bytes)\n", - rsl->prog->name, &stage_region[rmodule_offset], stage->memlen); + rsl->prog->name, rmod_loc, stage.memlen); + + if (stage.compression == CBFS_COMPRESS_NONE) { + if (rdev_readat(fh, rmod_loc, sizeof(stage), stage.len) != + stage.len) + return -1; + } else if (stage.compression == CBFS_COMPRESS_LZMA) { + size_t fsize; + void *map = rdev_mmap(fh, sizeof(stage), stage.len); + + if (map == NULL) + return -1; + + fsize = ulzma(map, rmod_loc); + + rdev_munmap(fh, map); - if (!cbfs_decompress(stage->compression, &stage[1], - &stage_region[rmodule_offset], stage->len)) + if (!fsize) + return -1; + } else return -1; - if (rmodule_parse(&stage_region[rmodule_offset], &rmod_stage)) + if (rmodule_parse(rmod_loc, &rmod_stage)) return -1; if (rmodule_load(&stage_region[load_offset], &rmod_stage)) @@ -291,16 +318,3 @@ int rmodule_stage_load(struct rmod_stage_load *rsl, struct cbfs_stage *stage) return 0; } - -int rmodule_stage_load_from_cbfs(struct rmod_stage_load *rsl) -{ - struct cbfs_stage *stage; - - stage = cbfs_get_file_content(CBFS_DEFAULT_MEDIA, - rsl->prog->name, CBFS_TYPE_STAGE, NULL); - - if (stage == NULL) - return -1; - - return rmodule_stage_load(rsl, stage); -} diff --git a/src/lib/selfboot.c b/src/lib/selfboot.c index 06c0f601b4..3f8cc6fb18 100644 --- a/src/lib/selfboot.c +++ b/src/lib/selfboot.c @@ -211,13 +211,11 @@ static int relocate_segment(unsigned long buffer, struct segment *seg) static int build_self_segment_list( struct segment *head, - struct prog *payload, uintptr_t *entry) + struct cbfs_payload *cbfs_payload, uintptr_t *entry) { struct segment *new; struct segment *ptr; struct cbfs_payload_segment *segment, *first_segment; - struct cbfs_payload *cbfs_payload; - cbfs_payload = prog_start(payload); memset(head, 0, sizeof(*head)); head->next = head->prev = head; first_segment = segment = &cbfs_payload->segments; @@ -447,9 +445,6 @@ static int load_self_segments( } } - /* Update the payload's area with the bounce buffer information. */ - prog_set_area(payload, (void *)(uintptr_t)bounce_buffer, bounce_size); - return 1; } @@ -457,9 +452,15 @@ void *selfload(struct prog *payload) { uintptr_t entry = 0; struct segment head; + void *data; + + data = rdev_mmap_full(&payload->rdev); + + if (data == NULL) + return NULL; /* Preprocess the self segments */ - if (!build_self_segment_list(&head, payload, &entry)) + if (!build_self_segment_list(&head, data, &entry)) goto out; /* Load the segments */ @@ -468,8 +469,14 @@ void *selfload(struct prog *payload) printk(BIOS_SPEW, "Loaded segments\n"); + rdev_munmap(&payload->rdev, data); + + /* Update the payload's area with the bounce buffer information. */ + prog_set_area(payload, (void *)(uintptr_t)bounce_buffer, bounce_size); + return (void *)entry; out: + rdev_munmap(&payload->rdev, data); return NULL; } |