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libpayload: rename i386 to x86

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Change-Id: Ia9170bd3d04e76dbf9321ca7ea4be23b5e468d21
Signed-off-by: Stefan Reinauer <reinauer@google.com>
Reviewed-on: http://review.coreboot.org/2033
Tested-by: build bot (Jenkins)
Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
This commit is contained in:
Stefan Reinauer
2012-12-14 11:42:57 -08:00
committed by Ronald G. Minnich
parent 9aaf7d17bb
commit f6935a006a
20 changed files with 4 additions and 4 deletions
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29
payloads/libpayload/arch/x86/Config.in Normal file
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##
## Copyright (c) 2012 The Chromium OS Authors.
##
## See file CREDITS for list of people who contributed to this
## project.
##
## 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; either version 2 of
## the License, or (at your option) any later version.
##
## 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., 59 Temple Place, Suite 330, Boston,
## MA 02111-1307 USA
##
if ARCH_X86
config ARCH_SPECIFIC_OPTIONS # dummy
def_bool y
select LITTLE_ENDIAN
endif

37
payloads/libpayload/arch/x86/Makefile.inc Normal file
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##
## This file is part of the libpayload project.
##
## Copyright (C) 2008 Advanced Micro Devices, Inc.
##
## 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.
##
head.o-y += head.S
libc-y += main.c sysinfo.c
libc-y += timer.c coreboot.c util.S
libc-y += exec.S virtual.c
libc-y += string.c
# Multiboot support is configurable
libc-$(CONFIG_MULTIBOOT) += multiboot.c

290
payloads/libpayload/arch/x86/coreboot.c Normal file
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/*
* This file is part of the libpayload project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
* Copyright (C) 2009 coresystems GmbH
*
* 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.
*/
#include <libpayload-config.h>
#include <libpayload.h>
#include <coreboot_tables.h>
/*
* Some of this is x86 specific, and the rest of it is generic. Right now,
* since we only support x86, we'll avoid trying to make lots of infrastructure
* we don't need. If in the future, we want to use coreboot on some other
* architecture, then take out the generic parsing code and move it elsewhere.
*/
/* === Parsing code === */
/* This is the generic parsing code. */
static void cb_parse_memory(void *ptr, struct sysinfo_t *info)
{
struct cb_memory *mem = ptr;
int count = MEM_RANGE_COUNT(mem);
int i;
if (count > SYSINFO_MAX_MEM_RANGES)
count = SYSINFO_MAX_MEM_RANGES;
info->n_memranges = 0;
for (i = 0; i < count; i++) {
struct cb_memory_range *range = MEM_RANGE_PTR(mem, i);
#ifdef CONFIG_MEMMAP_RAM_ONLY
if (range->type != CB_MEM_RAM)
continue;
#endif
info->memrange[info->n_memranges].base =
cb_unpack64(range->start);
info->memrange[info->n_memranges].size =
cb_unpack64(range->size);
info->memrange[info->n_memranges].type = range->type;
info->n_memranges++;
}
}
static void cb_parse_serial(void *ptr, struct sysinfo_t *info)
{
info->serial = ((struct cb_serial *)ptr);
}
#ifdef CONFIG_CHROMEOS
static void cb_parse_vbnv(unsigned char *ptr, struct sysinfo_t *info)
{
struct cb_vbnv *vbnv = (struct cb_vbnv *)ptr;
info->vbnv_start = vbnv->vbnv_start;
info->vbnv_size = vbnv->vbnv_size;
}
static void cb_parse_gpios(unsigned char *ptr, struct sysinfo_t *info)
{
int i;
struct cb_gpios *gpios = (struct cb_gpios *)ptr;
info->num_gpios = (gpios->count < SYSINFO_MAX_GPIOS) ?
(gpios->count) : SYSINFO_MAX_GPIOS;
for (i = 0; i < info->num_gpios; i++)
info->gpios[i] = gpios->gpios[i];
}
static void cb_parse_vdat(unsigned char *ptr, struct sysinfo_t *info)
{
struct cb_vdat *vdat = (struct cb_vdat *) ptr;
info->vdat_addr = phys_to_virt(vdat->vdat_addr);
info->vdat_size = vdat->vdat_size;
}
#endif
static void cb_parse_tstamp(unsigned char *ptr, struct sysinfo_t *info)
{
struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr;
info->tstamp_table = phys_to_virt(cbmem->cbmem_tab);
}
static void cb_parse_cbmem_cons(unsigned char *ptr, struct sysinfo_t *info)
{
struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr;
info->cbmem_cons = phys_to_virt(cbmem->cbmem_tab);
}
static void cb_parse_mrc_cache(unsigned char *ptr, struct sysinfo_t *info)
{
struct cb_cbmem_tab *const cbmem = (struct cb_cbmem_tab *)ptr;
info->mrc_cache = phys_to_virt(cbmem->cbmem_tab);
}
#ifdef CONFIG_NVRAM
static void cb_parse_optiontable(void *ptr, struct sysinfo_t *info)
{
info->option_table = ptr;
}
static void cb_parse_checksum(void *ptr, struct sysinfo_t *info)
{
struct cb_cmos_checksum *cmos_cksum = ptr;
info->cmos_range_start = cmos_cksum->range_start;
info->cmos_range_end = cmos_cksum->range_end;
info->cmos_checksum_location = cmos_cksum->location;
}
#endif
#ifdef CONFIG_COREBOOT_VIDEO_CONSOLE
static void cb_parse_framebuffer(void *ptr, struct sysinfo_t *info)
{
info->framebuffer = ptr;
}
#endif
static void cb_parse_string(unsigned char *ptr, char **info)
{
*info = (char *)((struct cb_string *)ptr)->string;
}
static int cb_parse_header(void *addr, int len, struct sysinfo_t *info)
{
struct cb_header *header;
unsigned char *ptr = addr;
void *forward;
int i;
for (i = 0; i < len; i += 16, ptr += 16) {
header = (struct cb_header *)ptr;
if (!strncmp((const char *)header->signature, "LBIO", 4))
break;
}
/* We walked the entire space and didn't find anything. */
if (i >= len)
return -1;
if (!header->table_bytes)
return 0;
/* Make sure the checksums match. */
if (ipchksum((u16 *) header, sizeof(*header)) != 0)
return -1;
if (ipchksum((u16 *) (ptr + sizeof(*header)),
header->table_bytes) != header->table_checksum)
return -1;
info->header = header;
/* Now, walk the tables. */
ptr += header->header_bytes;
for (i = 0; i < header->table_entries; i++) {
struct cb_record *rec = (struct cb_record *)ptr;
/* We only care about a few tags here (maybe more later). */
switch (rec->tag) {
case CB_TAG_FORWARD:
forward = phys_to_virt((void *)(unsigned long)((struct cb_forward *)rec)->forward);
return cb_parse_header(forward, len, info);
continue;
case CB_TAG_MEMORY:
cb_parse_memory(ptr, info);
break;
case CB_TAG_SERIAL:
cb_parse_serial(ptr, info);
break;
case CB_TAG_VERSION:
cb_parse_string(ptr, &info->cb_version);
break;
case CB_TAG_EXTRA_VERSION:
cb_parse_string(ptr, &info->extra_version);
break;
case CB_TAG_BUILD:
cb_parse_string(ptr, &info->build);
break;
case CB_TAG_COMPILE_TIME:
cb_parse_string(ptr, &info->compile_time);
break;
case CB_TAG_COMPILE_BY:
cb_parse_string(ptr, &info->compile_by);
break;
case CB_TAG_COMPILE_HOST:
cb_parse_string(ptr, &info->compile_host);
break;
case CB_TAG_COMPILE_DOMAIN:
cb_parse_string(ptr, &info->compile_domain);
break;
case CB_TAG_COMPILER:
cb_parse_string(ptr, &info->compiler);
break;
case CB_TAG_LINKER:
cb_parse_string(ptr, &info->linker);
break;
case CB_TAG_ASSEMBLER:
cb_parse_string(ptr, &info->assembler);
break;
#ifdef CONFIG_NVRAM
case CB_TAG_CMOS_OPTION_TABLE:
cb_parse_optiontable(ptr, info);
break;
case CB_TAG_OPTION_CHECKSUM:
cb_parse_checksum(ptr, info);
break;
#endif
#ifdef CONFIG_COREBOOT_VIDEO_CONSOLE
// FIXME we should warn on serial if coreboot set up a
// framebuffer buf the payload does not know about it.
case CB_TAG_FRAMEBUFFER:
cb_parse_framebuffer(ptr, info);
break;
#endif
case CB_TAG_MAINBOARD:
info->mainboard = (struct cb_mainboard *)ptr;
#ifdef CONFIG_CHROMEOS
case CB_TAG_GPIO:
cb_parse_gpios(ptr, info);
break;
case CB_TAG_VDAT:
cb_parse_vdat(ptr, info);
break;
case CB_TAG_VBNV:
cb_parse_vbnv(ptr, info);
break;
#endif
case CB_TAG_TIMESTAMPS:
cb_parse_tstamp(ptr, info);
break;
case CB_TAG_CBMEM_CONSOLE:
cb_parse_cbmem_cons(ptr, info);
break;
case CB_TAG_MRC_CACHE:
cb_parse_mrc_cache(ptr, info);
break;
}
ptr += rec->size;
}
return 1;
}
/* == Architecture specific == */
/* This is the x86 specific stuff. */
int get_coreboot_info(struct sysinfo_t *info)
{
int ret = cb_parse_header(phys_to_virt(0x00000000), 0x1000, info);
if (ret != 1)
ret = cb_parse_header(phys_to_virt(0x000f0000), 0x1000, info);
return (ret == 1) ? 0 : -1;
}

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payloads/libpayload/arch/x86/exec.S Normal file
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/*
* This file is part of the libpayload project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
*
* 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.
*/
/* calling syntax: i386_do_exec(long addr, int argc, char **argv, int *ret) */
/* This implements the payload API detailed here:
* http://www.coreboot.org/Payload_API
*/
.align 4
.text
.global i386_do_exec
.type i386_do_exec,@function
i386_do_exec:
pushl %ebp
movl %esp, %ebp
pushl %eax
/* Put the run address in %eax */
movl 8(%ebp), %eax
/* Save off the rest of the registers */
pushl %esi
pushl %ecx
pushl %ebp
/* Push the argc and argv pointers on to the stack */
movl 12(%ebp), %esi
movl 16(%ebp), %ecx
pushl %esi
pushl %ecx
/* Move a "magic" number on the stack - the other
* payload will use this as a clue that the argc
* and argv are sane
*/
movl $12345678, %ecx
pushl %ecx
/* Jump to the code */
call *%eax
/* %eax has the return value */
/* Skip over the argc/argv stuff still on the stack */
addl $12, %esp
/* Get back %ebp */
popl %ebp
/* Get the pointer to the return value
* and save the return value in it
*/
movl 20(%ebp), %ecx
movl %eax, (%eax)
/* Get the rest of the saved registers */
popl %ecx
popl %esi
popl %eax
/* Restore the stack pointer */
movl %ebp,%esp
popl %ebp
ret

104
payloads/libpayload/arch/x86/head.S Normal file
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/*
* This file is part of the libpayload project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
*
* 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.
*/
.code32
.global _entry, _leave
.text
.align 4
/*
* Our entry point - assume that the CPU is in 32 bit protected mode and
* all segments are in a flat model. That's our operating mode, so we won't
* change anything.
*/
_entry:
jmp _init
.align 4
#define MB_MAGIC 0x1BADB002
#define MB_FLAGS 0x00010003
mb_header:
.long MB_MAGIC
.long MB_FLAGS
.long -(MB_MAGIC + MB_FLAGS)
.long mb_header
.long _start
.long _edata
.long _end
.long _init
/*
* This function saves off the previous stack and switches us to our
* own execution environment.
*/
_init:
/* No interrupts, please. */
cli
/* There is a bunch of stuff missing here to take arguments on the stack
* See http://www.coreboot.org/Payload_API and exec.S.
*/
/* Store current stack pointer. */
movl %esp, %esi
/* Store EAX and EBX */
movl %eax,loader_eax
movl %ebx,loader_ebx
/* Clear the bss */
cld
movl $.bss, %edi
movl $_end, %ecx
subl %edi, %ecx
xor %ax, %ax
rep stosb
/* Setup new stack. */
movl $_stack, %ebx
movl %ebx, %esp
/* Save old stack pointer. */
pushl %esi
/* Let's rock. */
call start_main
/* %eax has the return value - pass it on unmolested */
_leave:
/* Get old stack pointer. */
popl %ebx
/* Restore old stack. */
movl %ebx, %esp
/* Return to the original context. */
ret

73
payloads/libpayload/arch/x86/main.c Normal file
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/*
* This file is part of the libpayload project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
*
* 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.
*/
#include <libpayload.h>
unsigned long loader_eax; /**< The value of EAX passed from the loader */
unsigned long loader_ebx; /**< The value of EBX passed from the loader */
unsigned int main_argc; /**< The argc value to pass to main() */
/** The argv value to pass to main() */
char *main_argv[MAX_ARGC_COUNT];
/**
* This is our C entry function - set up the system
* and jump into the payload entry point.
*/
void start_main(void);
void start_main(void)
{
extern int main(int argc, char **argv);
/* Gather system information. */
lib_get_sysinfo();
/* Optionally set up the consoles. */
#ifndef CONFIG_SKIP_CONSOLE_INIT
console_init();
#endif
/*
* Any other system init that has to happen before the
* user gets control goes here.
*/
/*
* Go to the entry point.
* In the future we may care about the return value.
*/
(void) main(main_argc, (main_argc != 0) ? main_argv : NULL);
/*
* Returning here will go to the _leave function to return
* us to the original context.
*/
}

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payloads/libpayload/arch/x86/multiboot.c Normal file
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/*
* This file is part of the libpayload project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
*
* 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.
*/
#include <libpayload-config.h>
#include <libpayload.h>
#include <multiboot_tables.h>
extern unsigned long loader_eax;
extern unsigned long loader_ebx;
static void mb_parse_mmap(struct multiboot_header *table,
struct sysinfo_t *info)
{
u8 *start = (u8 *) phys_to_virt(table->mmap_addr);
u8 *ptr = start;
info->n_memranges = 0;
while(ptr < (start + table->mmap_length)) {
struct multiboot_mmap *mmap = (struct multiboot_mmap *) ptr;
#ifdef CONFIG_MEMMAP_RAM_ONLY
/* 1 == normal RAM. Ignore everything else for now */
if (mmap->type == 1) {
#endif
info->memrange[info->n_memranges].base = mmap->addr;
info->memrange[info->n_memranges].size = mmap->length;
info->memrange[info->n_memranges].type = mmap->type;
if (++info->n_memranges == SYSINFO_MAX_MEM_RANGES)
return;
#ifdef CONFIG_MEMMAP_RAM_ONLY
}
#endif
ptr += (mmap->size + sizeof(mmap->size));
}
}
static void mb_parse_cmdline(struct multiboot_header *table)
{
extern int main_argc;
extern char *main_argv[];
char *c = phys_to_virt(table->cmdline);
while(*c != '\0' && main_argc < MAX_ARGC_COUNT) {
main_argv[main_argc++] = c;
for( ; *c != '\0' && !isspace(*c); c++);
if (*c) {
*c = 0;
c++;
}
}
}
int get_multiboot_info(struct sysinfo_t *info)
{
struct multiboot_header *table;
if (loader_eax != MULTIBOOT_MAGIC)
return -1;
table = (struct multiboot_header *) phys_to_virt(loader_ebx);
info->mbtable = phys_to_virt(loader_ebx);
if (table->flags & MULTIBOOT_FLAGS_MMAP)
mb_parse_mmap(table, info);
if (table->flags & MULTIBOOT_FLAGS_CMDLINE)
mb_parse_cmdline(table);
return 0;
}

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payloads/libpayload/arch/x86/string.c Normal file
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/*
* Copyright (C) 1991,1992,1993,1997,1998,2003, 2005 Free Software Foundation, Inc.
* This file is part of the GNU C Library.
* Copyright (c) 2011 The Chromium OS Authors.
*
* See file CREDITS for list of people who contributed to this
* project.
*
* 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; either version 2 of
* the License, or (at your option) any later version.
*
* 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., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*/
/* From glibc-2.14, sysdeps/i386/memset.c */
#include <stdint.h>
#include "string.h"
typedef uint32_t op_t;
void *memset(void *dstpp, int c, size_t len)
{
int d0;
unsigned long int dstp = (unsigned long int) dstpp;
/* This explicit register allocation improves code very much indeed. */
register op_t x asm("ax");
x = (unsigned char) c;
/* Clear the direction flag, so filling will move forward. */
asm volatile("cld");
/* This threshold value is optimal. */
if (len >= 12) {
/* Fill X with four copies of the char we want to fill with. */
x |= (x << 8);
x |= (x << 16);
/* Adjust LEN for the bytes handled in the first loop. */
len -= (-dstp) % sizeof(op_t);
/*
* There are at least some bytes to set. No need to test for
* LEN == 0 in this alignment loop.
*/
/* Fill bytes until DSTP is aligned on a longword boundary. */
asm volatile(
"rep\n"
"stosb" /* %0, %2, %3 */ :
"=D" (dstp), "=c" (d0) :
"0" (dstp), "1" ((-dstp) % sizeof(op_t)), "a" (x) :
"memory");
/* Fill longwords. */
asm volatile(
"rep\n"
"stosl" /* %0, %2, %3 */ :
"=D" (dstp), "=c" (d0) :
"0" (dstp), "1" (len / sizeof(op_t)), "a" (x) :
"memory");
len %= sizeof(op_t);
}
/* Write the last few bytes. */
asm volatile(
"rep\n"
"stosb" /* %0, %2, %3 */ :
"=D" (dstp), "=c" (d0) :
"0" (dstp), "1" (len), "a" (x) :
"memory");
return dstpp;
}
void *memcpy(void *dest, const void *src, size_t n)
{
unsigned long d0, d1, d2;
asm volatile(
"rep ; movsl\n\t"
"movl %4,%%ecx\n\t"
"rep ; movsb\n\t"
: "=&c" (d0), "=&D" (d1), "=&S" (d2)
: "0" (n >> 2), "g" (n & 3), "1" (dest), "2" (src)
: "memory"
);
return dest;
}

80
payloads/libpayload/arch/x86/sysinfo.c Normal file
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/*
* This file is part of the libpayload project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
*
* 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.
*/
#include <libpayload-config.h>
#include <libpayload.h>
#include <coreboot_tables.h>
#include <multiboot_tables.h>
/**
* This is a global structure that is used through the library - we set it
* up initially with some dummy values - hopefully they will be overridden.
*/
struct sysinfo_t lib_sysinfo = {
.cpu_khz = 200,
#ifdef CONFIG_SERIAL_CONSOLE
.ser_ioport = CONFIG_SERIAL_IOBASE,
#else
.ser_ioport = 0x3f8,
#endif
};
int lib_get_sysinfo(void)
{
int ret;
/* Get the CPU speed (for delays). */
lib_sysinfo.cpu_khz = get_cpu_speed();
#ifdef CONFIG_MULTIBOOT
/* Get the information from the multiboot tables,
* if they exist */
get_multiboot_info(&lib_sysinfo);
#endif
/* Get information from the coreboot tables,
* if they exist */
ret = get_coreboot_info(&lib_sysinfo);
if (!lib_sysinfo.n_memranges) {
/* If we can't get a good memory range, use the default. */
lib_sysinfo.n_memranges = 2;
lib_sysinfo.memrange[0].base = 0;
lib_sysinfo.memrange[0].size = 640 * 1024;
lib_sysinfo.memrange[0].type = CB_MEM_RAM;
lib_sysinfo.memrange[1].base = 1024 * 1024;
lib_sysinfo.memrange[1].size = 31 * 1024 * 1024;
lib_sysinfo.memrange[1].type = CB_MEM_RAM;
}
return ret;
}

124
payloads/libpayload/arch/x86/timer.c Normal file
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/*
* This file is part of the libpayload project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
*
* 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.
*/
/**
* @file i386/timer.c
* i386 specific timer routines
*/
#include <libpayload.h>
#include <arch/rdtsc.h>
/**
* @ingroup arch
* Global variable containing the speed of the processor in KHz.
*/
u32 cpu_khz;
/**
* Calculate the speed of the processor for use in delays.
*
* @return The CPU speed in kHz.
*/
unsigned int get_cpu_speed(void)
{
unsigned long long start, end;
/* Set up the PPC port - disable the speaker, enable the T2 gate. */
outb((inb(0x61) & ~0x02) | 0x01, 0x61);
/* Set the PIT to Mode 0, counter 2, word access. */
outb(0xB0, 0x43);
/* Load the counter with 0xffff. */
outb(0xff, 0x42);
outb(0xff, 0x42);
/* Read the number of ticks during the period. */
start = rdtsc();
while (!(inb(0x61) & 0x20)) ;
end = rdtsc();
/*
* The clock rate is 1193180 Hz, the number of milliseconds for a
* period of 0xffff is 1193180 / (0xFFFF * 1000) or .0182.
* Multiply that by the number of measured clocks to get the kHz value.
*/
cpu_khz = (unsigned int)((end - start) * 1193180U / (1000 * 0xffff));
return cpu_khz;
}
static inline void _delay(unsigned long long delta)
{
unsigned long long timeout = rdtsc() + delta;
while (rdtsc() < timeout) ;
}
/**
* Delay for a specified number of nanoseconds.
*
* @param n Number of nanoseconds to delay for.
*/
void ndelay(unsigned int n)
{
_delay((unsigned long long)n * cpu_khz / 1000000);
}
/**
* Delay for a specified number of microseconds.
*
* @param n Number of microseconds to delay for.
*/
void udelay(unsigned int n)
{
_delay((unsigned long long)n * cpu_khz / 1000);
}
/**
* Delay for a specified number of milliseconds.
*
* @param m Number of milliseconds to delay for.
*/
void mdelay(unsigned int m)
{
_delay((unsigned long long)m * cpu_khz);
}
/**
* Delay for a specified number of seconds.
*
* @param s Number of seconds to delay for.
*/
void delay(unsigned int s)
{
int i;
for (i=0; i<1000; i++)
_delay((unsigned long long)s * cpu_khz);
}

38
payloads/libpayload/arch/x86/util.S Normal file
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/*
* This file is part of the libpayload project.
*
* Copyright (C) 2008 Advanced Micro Devices, Inc.
*
* 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.
*/
.global halt
.text
.align 4
/* This function puts the system into a halt. */
halt:
cli
hlt
jmp halt

38
payloads/libpayload/arch/x86/virtual.c Normal file
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/*
* This file is part of the libpayload project.
*
* Copyright (C) 2008 coresystems GmbH
*
* 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.
*/
#include <unistd.h>
unsigned long virtual_offset = 0;
int getpagesize(void)
{
return 4096;
}