coreboot-kgpe-d16/src/arch/x86/mmap_boot.c

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/*
* 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
Remove address from GPLv2 headers As per discussion with lawyers[tm], it's not a good idea to shorten the license header too much - not for legal reasons but because there are tools that look for them, and giving them a standard pattern simplifies things. However, we got confirmation that we don't have to update every file ever added to coreboot whenever the FSF gets a new lease, but can drop the address instead. util/kconfig is excluded because that's imported code that we may want to synchronize every now and then. $ find * -type f -exec sed -i "s:Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, *MA[, ]*02110-1301[, ]*USA:Foundation, Inc.:" {} + $ find * -type f -exec sed -i "s:Foundation, Inc., 51 Franklin Street, Suite 500, Boston, MA 02110-1335, USA:Foundation, Inc.:" {} + $ find * -type f -exec sed -i "s:Foundation, Inc., 59 Temple Place[-, ]*Suite 330, Boston, MA *02111-1307[, ]*USA:Foundation, Inc.:" {} + $ find * -type f -exec sed -i "s:Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.:Foundation, Inc.:" {} + $ find * -type f -a \! -name \*.patch \ -a \! -name \*_shipped \ -a \! -name LICENSE_GPL \ -a \! -name LGPL.txt \ -a \! -name COPYING \ -a \! -name DISCLAIMER \ -exec sed -i "/Foundation, Inc./ N;s:Foundation, Inc.* USA\.* *:Foundation, Inc. :;s:Foundation, Inc. $:Foundation, Inc.:" {} + Change-Id: Icc968a5a5f3a5df8d32b940f9cdb35350654bef9 Signed-off-by: Patrick Georgi <pgeorgi@chromium.org> Reviewed-on: http://review.coreboot.org/9233 Tested-by: build bot (Jenkins) Reviewed-by: Vladimir Serbinenko <phcoder@gmail.com>
2015-03-26 15:17:45 +01:00
* Foundation, Inc.
*/
#include <boot_device.h>
#include <console/console.h>
#include <cbfs.h>
#include <endian.h>
#include <stdlib.h>
/* The ROM is memory mapped just below 4GiB. Form a pointer for the base. */
#define rom_base ((void *)(uintptr_t)(-(int32_t)CONFIG_ROM_SIZE))
static const struct mem_region_device boot_dev =
MEM_REGION_DEV_INIT(rom_base, CONFIG_ROM_SIZE);
const struct region_device *boot_device_ro(void)
{
return &boot_dev.rdev;
}
int cbfs_boot_region_properties(struct cbfs_props *props)
{
struct cbfs_header header;
int32_t offset;
const struct region_device *bdev;
bdev = boot_device_ro();
rdev_readat(bdev, &offset, CONFIG_ROM_SIZE - sizeof(offset),
sizeof(offset));
/* The offset is relative to the end of the media. */
offset += CONFIG_ROM_SIZE;
rdev_readat(bdev, &header , offset, sizeof(header));
header.magic = ntohl(header.magic);
header.romsize = ntohl(header.romsize);
header.bootblocksize = ntohl(header.bootblocksize);
header.offset = ntohl(header.offset);
if (header.magic != CBFS_HEADER_MAGIC)
return -1;
props->offset = header.offset;
if (CONFIG_ROM_SIZE != header.romsize)
props->size = CONFIG_ROM_SIZE;
else
props->size = header.romsize;
props->size -= props->offset;
props->size -= header.bootblocksize;
props->size = ALIGN_DOWN(props->size, 64);
printk(BIOS_DEBUG, "CBFS @ %zx size %zx\n", props->offset, props->size);
return 0;
}