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-rw-r--r--hw/s390x/sclp.c2
-rw-r--r--include/hw/s390x/sclp.h8
2 files changed, 9 insertions, 1 deletions
diff --git a/hw/s390x/sclp.c b/hw/s390x/sclp.c
index 86d6ae0023..cb035e909b 100644
--- a/hw/s390x/sclp.c
+++ b/hw/s390x/sclp.c
@@ -45,7 +45,7 @@ static void sclp_execute(SCCB *sccb, uint64_t code)
 {
     S390SCLPDevice *sdev = get_event_facility();
 
-    switch (code) {
+    switch (code & SCLP_CMD_CODE_MASK) {
     case SCLP_CMDW_READ_SCP_INFO:
     case SCLP_CMDW_READ_SCP_INFO_FORCED:
         read_SCP_info(sccb);
diff --git a/include/hw/s390x/sclp.h b/include/hw/s390x/sclp.h
index 231a38aa09..74e8d940b1 100644
--- a/include/hw/s390x/sclp.h
+++ b/include/hw/s390x/sclp.h
@@ -17,6 +17,8 @@
 #include <hw/sysbus.h>
 #include <hw/qdev.h>
 
+#define SCLP_CMD_CODE_MASK                      0xffff00ff
+
 /* SCLP command codes */
 #define SCLP_CMDW_READ_SCP_INFO                 0x00020001
 #define SCLP_CMDW_READ_SCP_INFO_FORCED          0x00120001
@@ -26,6 +28,12 @@
 #define SCLP_CMD_WRITE_EVENT_DATA               0x00760005
 #define SCLP_CMD_WRITE_EVENT_MASK               0x00780005
 
+/* CPU hotplug SCLP codes */
+#define SCLP_HAS_CPU_INFO                       0x0C00000000000000ULL
+#define SCLP_CMDW_READ_CPU_INFO                 0x00010001
+#define SCLP_CMDW_CONFIGURE_CPU                 0x00110001
+#define SCLP_CMDW_DECONFIGURE_CPU               0x00100001
+
 /* SCLP response codes */
 #define SCLP_RC_NORMAL_READ_COMPLETION          0x0010
 #define SCLP_RC_NORMAL_COMPLETION               0x0020