diff --git a/MAINTAINERS b/MAINTAINERS
index 2439614ad2c081250975ac839b26b454a0167d42..0ca7e1da8c66bcefe80eca255cf244bd080928b8 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -454,6 +454,14 @@ M: Alexander Graf <agraf@suse.de>
 S: Maintained
 F: hw/s390-*.c
 
+S390 Virtio-ccw
+M: Cornelia Huck <cornelia.huck@de.ibm.com>
+M: Alexander Graf <agraf@suse.de>
+S: Supported
+F: hw/s390x/s390-virtio-ccw.c
+F: hw/s390x/css.[hc]
+T: git git://github.com/cohuck/qemu virtio-ccw-upstr
+
 UniCore32 Machines
 -------------
 PKUnity-3 SoC initramfs-with-busybox
@@ -565,6 +573,12 @@ M: Stefan Hajnoczi <stefanha@redhat.com>
 S: Supported
 F: hw/virtio-blk*
 
+virtio-ccw
+M: Cornelia Huck <cornelia.huck@de.ibm.com>
+S: Supported
+F: hw/s390x/virtio-ccw.[hc]
+T: git git://github.com/cohuck/qemu virtio-ccw-upstr
+
 virtio-serial
 M: Amit Shah <amit.shah@redhat.com>
 S: Supported
diff --git a/hw/s390x/css.c b/hw/s390x/css.c
index 85f6f22a7f59df32eb83c4ff467e5cf465c30fda..e526a1c86c162c93ad793f64bf8ced28e46e54f3 100644
--- a/hw/s390x/css.c
+++ b/hw/s390x/css.c
@@ -988,15 +988,18 @@ int css_do_rchp(uint8_t cssid, uint8_t chpid)
     return 0;
 }
 
-bool css_schid_final(uint8_t cssid, uint8_t ssid, uint16_t schid)
+bool css_schid_final(int m, uint8_t cssid, uint8_t ssid, uint16_t schid)
 {
     SubchSet *set;
+    uint8_t real_cssid;
 
-    if (cssid > MAX_CSSID || ssid > MAX_SSID || !channel_subsys->css[cssid] ||
-        !channel_subsys->css[cssid]->sch_set[ssid]) {
+    real_cssid = (!m && (cssid == 0)) ? channel_subsys->default_cssid : cssid;
+    if (real_cssid > MAX_CSSID || ssid > MAX_SSID ||
+        !channel_subsys->css[real_cssid] ||
+        !channel_subsys->css[real_cssid]->sch_set[ssid]) {
         return true;
     }
-    set = channel_subsys->css[cssid]->sch_set[ssid];
+    set = channel_subsys->css[real_cssid]->sch_set[ssid];
     return schid > find_last_bit(set->schids_used,
                                  (MAX_SCHID + 1) / sizeof(unsigned long));
 }
diff --git a/hw/s390x/s390-virtio-bus.c b/hw/s390x/s390-virtio-bus.c
index 089ed9200695e0d93bdb10ac83cca2e667a0a049..d9b7f83878e80c21b161e7c0544de84110de16ac 100644
--- a/hw/s390x/s390-virtio-bus.c
+++ b/hw/s390x/s390-virtio-bus.c
@@ -402,6 +402,7 @@ static const VirtIOBindings virtio_s390_bindings = {
 
 static Property s390_virtio_net_properties[] = {
     DEFINE_NIC_PROPERTIES(VirtIOS390Device, nic),
+    DEFINE_VIRTIO_NET_FEATURES(VirtIOS390Device, host_features),
     DEFINE_PROP_UINT32("x-txtimer", VirtIOS390Device,
                        net.txtimer, TX_TIMER_INTERVAL),
     DEFINE_PROP_INT32("x-txburst", VirtIOS390Device,
diff --git a/hw/s390x/virtio-ccw.c b/hw/s390x/virtio-ccw.c
index d92e42735cf56bf9d77f991f9d4ef7b99ba45634..a9cf703d53a4160eba566936f62c117fb5c8ce48 100644
--- a/hw/s390x/virtio-ccw.c
+++ b/hw/s390x/virtio-ccw.c
@@ -585,7 +585,6 @@ static int virtio_ccw_blk_init(VirtioCcwDevice *dev)
 static int virtio_ccw_blk_exit(VirtioCcwDevice *dev)
 {
     virtio_blk_exit(dev->vdev);
-    blockdev_mark_auto_del(dev->blk.conf.bs);
     return virtio_ccw_exit(dev);
 }
 
diff --git a/target-s390x/cpu.h b/target-s390x/cpu.h
index e450db74a21c08572b42440c93084a735635258d..9cb739da1e76c59a2d6a23ec3ca46151ce9b2a2d 100644
--- a/target-s390x/cpu.h
+++ b/target-s390x/cpu.h
@@ -404,7 +404,7 @@ SubchDev *css_find_subch(uint8_t m, uint8_t cssid, uint8_t ssid,
 bool css_subch_visible(SubchDev *sch);
 void css_conditional_io_interrupt(SubchDev *sch);
 int css_do_stsch(SubchDev *sch, SCHIB *schib);
-bool css_schid_final(uint8_t cssid, uint8_t ssid, uint16_t schid);
+bool css_schid_final(int m, uint8_t cssid, uint8_t ssid, uint16_t schid);
 int css_do_msch(SubchDev *sch, SCHIB *schib);
 int css_do_xsch(SubchDev *sch);
 int css_do_csch(SubchDev *sch);
diff --git a/target-s390x/ioinst.c b/target-s390x/ioinst.c
index e3531f365e8f4e0abec9e2e6d1f1988791179d39..28c508d5413e2586b5cff39808c539c60fda5f63 100644
--- a/target-s390x/ioinst.c
+++ b/target-s390x/ioinst.c
@@ -316,7 +316,7 @@ int ioinst_handle_stsch(CPUS390XState *env, uint64_t reg1, uint32_t ipb)
             cc = 3;
         }
     } else {
-        if (css_schid_final(cssid, ssid, schid)) {
+        if (css_schid_final(m, cssid, ssid, schid)) {
             cc = 3; /* No more subchannels in this css/ss */
         } else {
             /* Store an empty schib. */
diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c
index 39297711826f22f6781f8d0992ad42f0ee04a5b2..8f111ae732df81b50362ec5429f0c2e30016c432 100644
--- a/target-s390x/kvm.c
+++ b/target-s390x/kvm.c
@@ -103,13 +103,8 @@ unsigned long kvm_arch_vcpu_id(CPUState *cpu)
 
 int kvm_arch_init_vcpu(CPUState *cpu)
 {
-    int ret = 0;
-
-    if (kvm_vcpu_ioctl(cpu, KVM_S390_INITIAL_RESET, NULL) < 0) {
-        perror("cannot init reset vcpu");
-    }
-
-    return ret;
+    /* nothing todo yet */
+    return 0;
 }
 
 void kvm_arch_reset_vcpu(CPUState *cpu)