Add automatic SMBIOS table generation

Change-Id: I0ae16dda8969638a8f70fe1d2e29e992aef3a834
Signed-off-by: Sven Schnelle <svens@stackframe.org>
Reviewed-on: http://review.coreboot.org/152
Tested-by: build bot (Jenkins)

3 files changed, 318 insertions, 1 deletions

diff --git a/src/arch/x86/boot/Makefile.inc b/src/arch/x86/boot/Makefile.inc
index d4a377f74b..3f11c01611 100644
--- a/src/arch/x86/boot/Makefile.inc
+++ b/src/arch/x86/boot/Makefile.inc
@@ -6,8 +6,10 @@ ramstage-y += tables.c
 ramstage-$(CONFIG_GENERATE_MP_TABLE) += mpspec.c
 ramstage-$(CONFIG_GENERATE_PIRQ_TABLE) += pirq_routing.c
 ramstage-$(CONFIG_GENERATE_ACPI_TABLES) += acpi.c
+ramstage-$(CONFIG_GENERATE_SMBIOS_TABLES) += smbios.c
 ramstage-$(CONFIG_GENERATE_ACPI_TABLES) += acpigen.c
 ramstage-$(CONFIG_HAVE_ACPI_RESUME) += wakeup.S
 
 $(obj)/arch/x86/boot/coreboot_table.ramstage.o : $(OPTION_TABLE_H)
+$(obj)/arch/x86/boot/smbios.ramstage.o: $(obj)/build.h
 
diff --git a/src/arch/x86/boot/smbios.c b/src/arch/x86/boot/smbios.c
new file mode 100644
index 0000000000..e5156d9de7
--- /dev/null
+++ b/src/arch/x86/boot/smbios.c
@@ -0,0 +1,293 @@
+/*
+ * 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;
+}
diff --git a/src/arch/x86/boot/tables.c b/src/arch/x86/boot/tables.c
index d816e76750..29d2ec09b2 100644
--- a/src/arch/x86/boot/tables.c
+++ b/src/arch/x86/boot/tables.c
@@ -31,6 +31,7 @@
 #include <cpu/x86/multiboot.h>
 #include <cbmem.h>
 #include <lib.h>
+#include <smbios.h>
 
 uint64_t high_tables_base = 0;
 uint64_t high_tables_size;
@@ -120,7 +121,7 @@ struct lb_memory *write_tables(void)
 #endif /* CONFIG_GENERATE_MP_TABLE */
 
 #if CONFIG_GENERATE_ACPI_TABLES == 1
-#define MAX_ACPI_SIZE (47 * 1024)
+#define MAX_ACPI_SIZE (45 * 1024)
 	post_code(0x9c);
 
 	/* Write ACPI tables to F segment and high tables area */
@@ -178,7 +179,28 @@ struct lb_memory *write_tables(void)
 	}
 
 #endif
+#define MAX_SMBIOS_SIZE 2048
+#if CONFIG_GENERATE_SMBIOS_TABLES
+	high_table_pointer = (unsigned long)cbmem_add(CBMEM_ID_SMBIOS, MAX_SMBIOS_SIZE);
+	if (high_table_pointer) {
+		unsigned long new_high_table_pointer;
 
+		new_high_table_pointer = smbios_write_tables(high_table_pointer);
+		rom_table_end = ALIGN(rom_table_end, 16);
+		memcpy((void *)rom_table_end, (void *)high_table_pointer, sizeof(struct smbios_entry));
+		rom_table_end += sizeof(struct smbios_entry);
+
+		if (new_high_table_pointer > ( high_table_pointer + MAX_SMBIOS_SIZE)) {
+			printk(BIOS_ERR, "ERROR: Increase SMBIOS size\n");
+		}
+                printk(BIOS_DEBUG, "SMBIOS tables: %ld bytes.\n",
+				new_high_table_pointer - high_table_pointer);
+	} else {
+		unsigned long new_rom_table_end = smbios_write_tables(rom_table_end);
+		printk(BIOS_DEBUG, "SMBIOS size %ld bytes\n", new_rom_table_end - rom_table_end);
+		rom_table_end = ALIGN(new_rom_table_end, 16);
+	}
+#endif
 
 #define MAX_COREBOOT_TABLE_SIZE (8 * 1024)
 	post_code(0x9d);