[PATCH 09/11] smbios: Fill UUID from sysinfo when available

[Jan Kiszka]

From: Jan Kiszka <jan.kiszka at siemens.com>

Allow for the sysinfo drivers to provide a system UUID to SMBIOS. Will
be first used by the IOT2050 boards.

Based on original patch by Li Hua Qian.

Signed-off-by: Jan Kiszka <jan.kiszka at siemens.com>
---
 include/sysinfo.h | 1 +
 lib/smbios.c      | 4 ++++
 2 files changed, 5 insertions(+)

diff --git a/include/sysinfo.h b/include/sysinfo.h
index 8a77ef44856..1c5008b5f23 100644
--- a/include/sysinfo.h
+++ b/include/sysinfo.h
@@ -49,6 +49,7 @@ enum sysinfo_id {
 	SYSINFO_ID_SMBIOS_SYSTEM_SERIAL,
 	SYSINFO_ID_SMBIOS_SYSTEM_SKU,
 	SYSINFO_ID_SMBIOS_SYSTEM_FAMILY,
+	SYSINFO_ID_SMBIOS_SYSTEM_UUID,
 	SYSINFO_ID_SMBIOS_BASEBOARD_MANUFACTURER,
 	SYSINFO_ID_SMBIOS_BASEBOARD_PRODUCT,
 	SYSINFO_ID_SMBIOS_BASEBOARD_VERSION,
diff --git a/lib/smbios.c b/lib/smbios.c
index 7c24ea129eb..1441fa4cde6 100644
--- a/lib/smbios.c
+++ b/lib/smbios.c
@@ -387,6 +387,7 @@ static int smbios_write_type1(ulong *current, int handle,
 	struct smbios_type1 *t;
 	int len = sizeof(struct smbios_type1);
 	char *serial_str = env_get("serial#");
+	char uuid[sizeof(t->uuid)];
 
 	t = map_sysmem(*current, len);
 	memset(t, 0, sizeof(struct smbios_type1));
@@ -409,6 +410,9 @@ static int smbios_write_type1(ulong *current, int handle,
 						      SYSINFO_ID_SMBIOS_SYSTEM_SERIAL,
 						      NULL);
 	}
+	if (!sysinfo_get_str(ctx->dev, SYSINFO_ID_SMBIOS_SYSTEM_UUID,
+			     sizeof(uuid), uuid))
+		strncpy((char *)t->uuid, uuid, sizeof(t->uuid));
 	t->wakeup_type = SMBIOS_WAKEUP_TYPE_UNKNOWN;
 	t->sku_number = smbios_add_prop_si(ctx, "sku",
 					   SYSINFO_ID_SMBIOS_SYSTEM_SKU, NULL);
-- 
2.43.0