2 files changed, 36 insertions, 3 deletions

diff --git a/arch/s390/include/asm/sysinfo.h b/arch/s390/include/asm/sysinfo.h
index f92428e459f8..9f8f2b5c8d6c 100644
--- a/arch/s390/include/asm/sysinfo.h
+++ b/arch/s390/include/asm/sysinfo.h
@@ -15,6 +15,7 @@
 #define __ASM_S390_SYSINFO_H
 
 #include <asm/bitsperlong.h>
+#include <linux/uuid.h>
 
 struct sysinfo_1_1_1 {
 	unsigned char p:1;
@@ -112,10 +113,13 @@ struct sysinfo_3_2_2 {
 		char name[8];
 		unsigned int caf;
 		char cpi[16];
-		char reserved_1[24];
-
+		char reserved_1[3];
+		char ext_name_encoding;
+		unsigned int reserved_2;
+		uuid_be uuid;
 	} vm[8];
-	char reserved_544[3552];
+	char reserved_3[1504];
+	char ext_names[8][256];
 };
 
 extern int topology_max_mnest;
diff --git a/arch/s390/kernel/sysinfo.c b/arch/s390/kernel/sysinfo.c
index 811f542b8ed4..cebab77c138c 100644
--- a/arch/s390/kernel/sysinfo.c
+++ b/arch/s390/kernel/sysinfo.c
@@ -196,6 +196,33 @@ static void stsi_2_2_2(struct seq_file *m, struct sysinfo_2_2_2 *info)
 	seq_printf(m, "LPAR CPUs Shared:     %d\n", info->cpus_shared);
 }
 
+static void print_ext_name(struct seq_file *m, int lvl,
+			   struct sysinfo_3_2_2 *info)
+{
+	if (info->vm[lvl].ext_name_encoding == 0)
+		return;
+	if (info->ext_names[lvl][0] == 0)
+		return;
+	switch (info->vm[lvl].ext_name_encoding) {
+	case 1: /* EBCDIC */
+		EBCASC(info->ext_names[lvl], sizeof(info->ext_names[lvl]));
+		break;
+	case 2:	/* UTF-8 */
+		break;
+	default:
+		return;
+	}
+	seq_printf(m, "VM%02d Extended Name:   %-.256s\n", lvl,
+		   info->ext_names[lvl]);
+}
+
+static void print_uuid(struct seq_file *m, int i, struct sysinfo_3_2_2 *info)
+{
+	if (!memcmp(&info->vm[i].uuid, &NULL_UUID_BE, sizeof(uuid_be)))
+		return;
+	seq_printf(m, "VM%02d UUID:            %pUb\n", i, &info->vm[i].uuid);
+}
+
 static void stsi_3_2_2(struct seq_file *m, struct sysinfo_3_2_2 *info)
 {
 	int i;
@@ -213,6 +240,8 @@ static void stsi_3_2_2(struct seq_file *m, struct sysinfo_3_2_2 *info)
 		seq_printf(m, "VM%02d CPUs Configured: %d\n", i, info->vm[i].cpus_configured);
 		seq_printf(m, "VM%02d CPUs Standby:    %d\n", i, info->vm[i].cpus_standby);
 		seq_printf(m, "VM%02d CPUs Reserved:   %d\n", i, info->vm[i].cpus_reserved);
+		print_ext_name(m, i, info);
+		print_uuid(m, i, info);
 	}
 }