diff --git a/hw/s390x/ipl.c b/hw/s390x/ipl.c
index 9a73820fd1f18774f7299c4b075b97b39bcf6e13..2da0f1eaef4152dd8044726d360ab6244e9b0c6d 100644
--- a/hw/s390x/ipl.c
+++ b/hw/s390x/ipl.c
@@ -243,6 +243,7 @@ static uint64_t s390_update_iplstate(S390IPLState *ipl)
                 cpu_to_be32(S390_IPLB_MIN_CCW_LEN - S390_IPLB_HEADER_LEN);
             ipl->iplb.pbt = S390_IPL_TYPE_CCW;
             ipl->iplb.ccw.devno = cpu_to_be16(ccw_dev->sch->devno);
+            ipl->iplb.ccw.ssid = ccw_dev->sch->ssid & 3;
             ipl->iplb_valid = true;
             goto out;
         }
diff --git a/hw/s390x/ipl.h b/hw/s390x/ipl.h
index 0b7f6cbecb5e195248902c50423065eec04f9c8d..9aa4d942a740522699a548b2d2bfb4320ebc3e77 100644
--- a/hw/s390x/ipl.h
+++ b/hw/s390x/ipl.h
@@ -16,7 +16,8 @@
 #include "cpu.h"
 
 struct IplBlockCcw {
-    uint8_t  reserved0[86];
+    uint8_t  reserved0[85];
+    uint8_t  ssid;
     uint16_t devno;
     uint8_t  vm_flags;
     uint8_t  reserved3[3];
diff --git a/target-s390x/ioinst.c b/target-s390x/ioinst.c
index 142ff9384472e3d26d33f9e7442be7c4ed3f9181..f5498aa023df4fe86bd536cd9c8e970981197ad7 100644
--- a/target-s390x/ioinst.c
+++ b/target-s390x/ioinst.c
@@ -509,6 +509,7 @@ static void ioinst_handle_chsc_scsc(ChscReq *req, ChscResp *res)
 
     general_chars[0] = cpu_to_be32(0x03000000);
     general_chars[1] = cpu_to_be32(0x00059000);
+    general_chars[3] = cpu_to_be32(0x00080000);
 
     chsc_chars[0] = cpu_to_be32(0x40000000);
     chsc_chars[3] = cpu_to_be32(0x00040000);