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Add automatic SMBIOS table generation

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Change-Id: I0ae16dda8969638a8f70fe1d2e29e992aef3a834
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/152
Tested-by: build bot (Jenkins)
This commit is contained in:
Sven Schnelle
2011-08-14 20:56:34 +02:00
parent bc081cdf6d
commit 164bcfdd1b
26 changed files with 606 additions and 303 deletions
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293
src/arch/x86/boot/smbios.c Normal file
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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2011 Sven Schnelle <svens@stackframe.org>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License as
* published by the Free Software Foundation; version 2 of
* the License.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
* MA 02110-1301 USA
*/
#include <stdlib.h>
#include <string.h>
#include <smbios.h>
#include <console/console.h>
#include <build.h>
#include <device/device.h>
#include <arch/cpu.h>
#include <cpu/x86/name.h>
#include <cbfs_core.h>
#include <arch/byteorder.h>
static u8 smbios_checksum(u8 *p, u32 length)
{
u8 ret = 0;
while (length--)
ret += *p++;
return -ret;
}
int smbios_add_string(char *start, const char *str)
{
int i = 1;
char *p = start;
for(;;) {
if (!*p) {
strcpy(p, str);
p += strlen(str);
*p++ = '\0';
*p++ = '\0';
return i;
}
if (!strcmp(p, str))
return i;
p += strlen(p)+1;
i++;
}
}
int smbios_string_table_len(char *start)
{
char *p = start;
int i, len = 0;
while(*p) {
i = strlen(p) + 1;
p += i;
len += i;
}
return len + 1;
}
static int smbios_cpu_vendor(char *start)
{
char tmp[13];
u32 *_tmp = (u32 *)tmp;
struct cpuid_result res = cpuid(0);
_tmp[0] = res.ebx;
_tmp[1] = res.edx;
_tmp[2] = res.ecx;
tmp[12] = '\0';
return smbios_add_string(start, tmp);
}
static int smbios_processor_name(char *start)
{
char tmp[49];
u32 *_tmp = (u32 *)tmp;
struct cpuid_result res;
int i;
for (i = 0; i < 3; i++) {
res = cpuid(0x80000002 + i);
_tmp[i * 4 + 0] = res.eax;
_tmp[i * 4 + 1] = res.ebx;
_tmp[i * 4 + 2] = res.ecx;
_tmp[i * 4 + 3] = res.edx;
}
tmp[48] = 0;
return smbios_add_string(start, tmp);
}
static int smbios_write_type0(unsigned long *current, int handle)
{
struct cbfs_header *hdr;
struct smbios_type0 *t = (struct smbios_type0 *)*current;
int len = sizeof(struct smbios_type0);
memset(t, 0, sizeof(struct smbios_type0));
t->type = SMBIOS_BIOS_INFORMATION;
t->handle = handle;
t->length = len - 2;
t->vendor = smbios_add_string(t->eos, "coreboot");
t->bios_release_date = smbios_add_string(t->eos, COREBOOT_DMI_DATE);
t->bios_version = smbios_add_string(t->eos, COREBOOT_VERSION);
if ((hdr = get_cbfs_header()) != (struct cbfs_header *)0xffffffff)
t->bios_rom_size = (ntohl(hdr->romsize) / 65535) - 1;
t->system_bios_major_release = 4;
t->bios_characteristics =
BIOS_CHARACTERISTICS_PCI_SUPPORTED |
#if CONFIG_CARDBUS_PLUGIN_SUPPORT
BIOS_CHARACTERISTICS_PC_CARD |
#endif
BIOS_CHARACTERISTICS_SELECTABLE_BOOT |
BIOS_CHARACTERISTICS_UPGRADEABLE;
#if CONFIG_GENERATE_ACPI_TABLES
t->bios_characteristics_ext1 = BIOS_EXT1_CHARACTERISTICS_ACPI;
#endif
t->bios_characteristics_ext2 = BIOS_EXT2_CHARACTERISTICS_TARGET;
len = t->length + smbios_string_table_len(t->eos);
*current += len;
return len;
}
static int smbios_write_type1(unsigned long *current, int handle)
{
struct smbios_type1 *t = (struct smbios_type1 *)*current;
int len = sizeof(struct smbios_type1);
memset(t, 0, sizeof(struct smbios_type1));
t->type = SMBIOS_SYSTEM_INFORMATION;
t->handle = handle;
t->length = len - 2;
t->manufacturer = smbios_add_string(t->eos, CONFIG_MAINBOARD_VENDOR);
t->product_name = smbios_add_string(t->eos, CONFIG_MAINBOARD_PART_NUMBER);
len = t->length + smbios_string_table_len(t->eos);
*current += len;
return len;
}
static int smbios_write_type3(unsigned long *current, int handle)
{
struct smbios_type3 *t = (struct smbios_type3 *)*current;
int len = sizeof(struct smbios_type3);
memset(t, 0, sizeof(struct smbios_type3));
t->type = SMBIOS_SYSTEM_ENCLOSURE;
t->handle = handle;
t->length = len - 2;
t->manufacturer = smbios_add_string(t->eos, CONFIG_MAINBOARD_VENDOR);
t->bootup_state = SMBIOS_STATE_SAFE;
t->power_supply_state = SMBIOS_STATE_SAFE;
t->thermal_state = SMBIOS_STATE_SAFE;
t->_type = 3;
t->security_status = SMBIOS_STATE_SAFE;
len = t->length + smbios_string_table_len(t->eos);
*current += len;
return len;
}
static int smbios_write_type4(unsigned long *current, int handle)
{
struct cpuid_result res;
struct smbios_type4 *t = (struct smbios_type4 *)*current;
int len = sizeof(struct smbios_type4);
res = cpuid(1);
memset(t, 0, sizeof(struct smbios_type4));
t->type = SMBIOS_PROCESSOR_INFORMATION;
t->handle = handle;
t->length = len - 2;
t->processor_id[0] = res.eax;
t->processor_id[1] = res.edx;
t->processor_manufacturer = smbios_cpu_vendor(t->eos);
t->processor_version = smbios_processor_name(t->eos);
t->processor_family = 0x0c;
t->processor_type = 3; /* System Processor */
t->processor_upgrade = 0x06;
t->core_count = (res.ebx >> 16) & 0xff;
t->l1_cache_handle = 0xffff;
t->l2_cache_handle = 0xffff;
t->l3_cache_handle = 0xffff;
t->processor_upgrade = 1;
len = t->length + smbios_string_table_len(t->eos);
*current += len;
return len;
}
static int smbios_write_type32(unsigned long *current, int handle)
{
struct smbios_type32 *t = (struct smbios_type32 *)*current;
int len = sizeof(struct smbios_type32);
memset(t, 0, sizeof(struct smbios_type32));
t->type = SMBIOS_SYSTEM_BOOT_INFORMATION;
t->handle = handle;
t->length = len - 2;
*current += len;
return len;
}
static int smbios_write_type127(unsigned long *current, int handle)
{
struct smbios_type127 *t = (struct smbios_type127 *)*current;
int len = sizeof(struct smbios_type127);
memset(t, 0, sizeof(struct smbios_type127));
t->type = SMBIOS_END_OF_TABLE;
t->handle = handle;
t->length = len - 2;
*current += len;
return len;
}
static int smbios_walk_device_tree(device_t tree, int *handle, unsigned long *current)
{
device_t dev;
int len = 0;
for(dev = tree; dev; dev = dev->next) {
printk(BIOS_INFO, "%s (%s)\n", dev_path(dev), dev->chip_ops ? dev->chip_ops->name : "");
if (dev->ops && dev->ops->get_smbios_data)
len += dev->ops->get_smbios_data(dev, handle, current);
if (dev->chip_ops && dev->chip_ops->get_smbios_data)
len += dev->chip_ops->get_smbios_data(dev, handle, current);
}
return len;
}
unsigned long smbios_write_tables(unsigned long current)
{
struct smbios_entry *se;
unsigned long tables;
int len, handle = 0;
current = ALIGN(current, 16);
printk(BIOS_DEBUG, "%s: %08lx\n", __func__, current);
se = (struct smbios_entry *)current;
current += sizeof(struct smbios_entry);
current = ALIGN(current, 16);
tables = current;
len = smbios_write_type0(&current, handle++);
len += smbios_write_type1(&current, handle++);
len += smbios_write_type3(&current, handle++);
len += smbios_write_type4(&current, handle++);
len += smbios_write_type32(&current, handle++);
len += smbios_walk_device_tree(all_devices, &handle, &current);
len += smbios_write_type127(&current, handle++);
memset(se, 0, sizeof(struct smbios_entry));
memcpy(se->anchor, "_SM_", 4);
se->length = sizeof(struct smbios_entry);
se->major_version = 2;
se->minor_version = 7;
se->max_struct_size = 24;
se->struct_count = handle;
memcpy(se->intermediate_anchor_string, "_DMI_", 5);
se->struct_table_address = (u32)tables;
se->struct_table_length = len;
se->intermediate_checksum = smbios_checksum((u8 *)se + 0x10,
sizeof(struct smbios_entry) - 0x10);
se->checksum = smbios_checksum((u8 *)se, sizeof(struct smbios_entry));
return current;
}