smbios: Extend Baseboard (or Module) Information (type2)

Add more information on baseboard as described in SMBIOS Reference
Specification 3.1.1.

Change-Id: I9fe1c4fe70c66f8a7fcc75b93672421ae808bf1b
Signed-off-by: Julien Viard de Galbert <jviarddegalbert@online.net>
Reviewed-on: https://review.coreboot.org/23842
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Martin Roth <martinroth@google.com>

src/arch/x86/smbios.c

@@ -381,6 +381,26 @@ void __attribute__((weak)) smbios_mainboard_set_uuid(u8 *uuid)
 }
 #endif
 
+const char *__attribute__((weak)) smbios_mainboard_asset_tag(void)
+{
+	return "";
+}
+
+u8 __attribute__((weak)) smbios_mainboard_feature_flags(void)
+{
+	return 0;
+}
+
+const char *__attribute__((weak)) smbios_mainboard_location_in_chassis(void)
+{
+	return "";
+}
+
+smbios_board_type __attribute__((weak)) smbios_mainboard_board_type(void)
+{
+	return SMBIOS_BOARD_TYPE_UNKNOWN;
+}
+
 const char *__attribute__((weak)) smbios_mainboard_sku(void)
 {
 	return "";
@@ -419,7 +439,8 @@ static int smbios_write_type1(unsigned long *current, int handle)
 	return len;
 }
 
-static int smbios_write_type2(unsigned long *current, int handle)
+static int smbios_write_type2(unsigned long *current, int handle,
+			      const int chassis_handle)
 {
 	struct smbios_type2 *t = (struct smbios_type2 *)*current;
 	int len = sizeof(struct smbios_type2);
@@ -435,6 +456,12 @@ static int smbios_write_type2(unsigned long *current, int handle)
 	t->serial_number = smbios_add_string(t->eos,
 		smbios_mainboard_serial_number());
 	t->version = smbios_add_string(t->eos, smbios_mainboard_version());
+	t->asset_tag = smbios_add_string(t->eos, smbios_mainboard_asset_tag());
+	t->feature_flags = smbios_mainboard_feature_flags();
+	t->location_in_chassis = smbios_add_string(t->eos,
+		smbios_mainboard_location_in_chassis());
+	t->board_type = smbios_mainboard_board_type();
+	t->chassis_handle = chassis_handle;
 	len = t->length + smbios_string_table_len(t->eos);
 	*current += len;
 	return len;
@@ -642,7 +669,8 @@ unsigned long smbios_write_tables(unsigned long current)
 	update_max(len, max_struct_size, smbios_write_type1(&current,
 		handle++));
 	update_max(len, max_struct_size, smbios_write_type2(&current,
-		handle++));
+		handle, handle + 1)); /* The chassis handle is the next one */
+	handle++;
 	update_max(len, max_struct_size, smbios_write_type3(&current,
 		handle++));
 	update_max(len, max_struct_size, smbios_write_type4(&current,

src/include/smbios.h

@@ -37,6 +37,10 @@ const char *smbios_mainboard_serial_number(void);
 const char *smbios_mainboard_version(void);
 void smbios_mainboard_set_uuid(u8 *uuid);
 const char *smbios_mainboard_bios_version(void);
+const char *smbios_mainboard_asset_tag(void);
+u8 smbios_mainboard_feature_flags(void);
+const char *smbios_mainboard_location_in_chassis(void);
+
 const char *smbios_mainboard_sku(void);
 u8 smbios_mainboard_enclosure_type(void);
 #ifdef CONFIG_MAINBOARD_FAMILY
@@ -267,6 +271,22 @@ struct smbios_type1 {
 	u8 eos[2];
 } __packed;
 
+typedef enum {
+	SMBIOS_BOARD_TYPE_UNKNOWN = 0x01,
+	SMBIOS_BOARD_TYPE_OTHER = 0x02,
+	SMBIOS_BOARD_TYPE_SERVER_BLADE = 0x03,
+	SMBIOS_BOARD_TYPE_CONNECTIVITY_SWITCH = 0x04,
+	SMBIOS_BOARD_TYPE_SYSTEM_MANAGEMENT_MODULE = 0x05,
+	SMBIOS_BOARD_TYPE_PROCESSOR_MODULE = 0x06,
+	SMBIOS_BOARD_TYPE_IO_MODULE = 0x07,
+	SMBIOS_BOARD_TYPE_MEMORY_MODULE = 0x08,
+	SMBIOS_BOARD_TYPE_DAUGHTER_BOARD = 0x09,
+	SMBIOS_BOARD_TYPE_MOTHERBOARD = 0x0a,
+	SMBIOS_BOARD_TYPE_PROCESSOR_MEMORY_MODULE = 0x0b,
+	SMBIOS_BOARD_TYPE_PROCESSOR_IO_MODULE = 0x0c,
+	SMBIOS_BOARD_TYPE_INTERCONNECT_BOARD = 0x0d,
+} smbios_board_type;
+
 struct smbios_type2 {
 	u8 type;
 	u8 length;
@@ -275,6 +295,11 @@ struct smbios_type2 {
 	u8 product_name;
 	u8 version;
 	u8 serial_number;
+	u8 asset_tag;
+	u8 feature_flags;
+	u8 location_in_chassis;
+	u16 chassis_handle;
+	u8 board_type;
 	u8 eos[2];
 } __packed;
 
@@ -510,4 +535,6 @@ struct smbios_type127 {
 void smbios_fill_dimm_manufacturer_from_id(uint16_t mod_id,
 	struct smbios_type17 *t);
 
+smbios_board_type smbios_mainboard_board_type(void);
+
 #endif