qemu: Add ccw support for vhost-vsock

Add support and tests for vhost-vsock-ccw.

Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com>

src/qemu/qemu_command.c

@@ -10217,10 +10217,14 @@ qemuBuildVsockDevStr(virDomainDefPtr def,
 {
     qemuDomainVsockPrivatePtr priv = (qemuDomainVsockPrivatePtr)vsock->privateData;
     virBuffer buf = VIR_BUFFER_INITIALIZER;
-    const char *device = "vhost-vsock-pci";
     char *ret = NULL;
 
-    virBufferAsprintf(&buf, "%s", device);
+    if (vsock->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_CCW) {
+        virBufferAddLit(&buf, "vhost-vsock-ccw");
+    } else {
+        virBufferAddLit(&buf, "vhost-vsock-pci");
+    }
+
     virBufferAsprintf(&buf, ",id=%s", vsock->info.alias);
     virBufferAsprintf(&buf, ",guest-cid=%u", vsock->guest_cid);
     virBufferAsprintf(&buf, ",vhostfd=%s%u", fdprefix, priv->vhostfd);

src/qemu/qemu_domain.c

@@ -5546,7 +5546,8 @@ qemuDomainDeviceDefValidateMemory(const virDomainMemoryDef *memory ATTRIBUTE_UNU
 
 
 static int
-qemuDomainDeviceDefValidateVsock(const virDomainVsockDef *vsock ATTRIBUTE_UNUSED,
+qemuDomainDeviceDefValidateVsock(const virDomainVsockDef *vsock,
+                                 const virDomainDef *def,
                                  virQEMUCapsPtr qemuCaps)
 {
     if (!virQEMUCapsGet(qemuCaps, QEMU_CAPS_DEVICE_VHOST_VSOCK)) {
@@ -5555,6 +5556,11 @@ qemuDomainDeviceDefValidateVsock(const virDomainVsockDef *vsock ATTRIBUTE_UNUSED
                          "with this QEMU binary"));
         return -1;
     }
+
+    if (!qemuDomainCheckCCWS390AddressSupport(def, vsock->info, qemuCaps,
+                                              "vsock"))
+        return -1;
+
     return 0;
 }
 
@@ -5702,7 +5708,7 @@ qemuDomainDeviceDefValidate(const virDomainDeviceDef *dev,
         break;
 
     case VIR_DOMAIN_DEVICE_VSOCK:
-        ret = qemuDomainDeviceDefValidateVsock(dev->data.vsock, qemuCaps);
+        ret = qemuDomainDeviceDefValidateVsock(dev->data.vsock, def, qemuCaps);
         break;
 
     case VIR_DOMAIN_DEVICE_TPM:

src/qemu/qemu_domain_address.c

@@ -306,7 +306,8 @@ qemuDomainPrimeVirtioDeviceAddresses(virDomainDefPtr def,
        declare address-less virtio devices to be of address type 'type'
        disks, networks, videos, consoles, controllers, memballoon and rng
        in this order
-       if type is ccw filesystem devices are declared to be of address type ccw
+       if type is ccw filesystem and vsock devices are declared to be of
+       address type ccw
     */
     size_t i;
 
@@ -373,6 +374,10 @@ qemuDomainPrimeVirtioDeviceAddresses(virDomainDefPtr def,
             if (def->fss[i]->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE)
                 def->fss[i]->info.type = type;
         }
+        if (def->vsock &&
+            def->vsock->info.type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE) {
+            def->vsock->info.type = type;
+        }
     }
 }
 

tests/qemuxml2argvdata/vhost-vsock-ccw-auto.s390x-latest.args

@@ -0,0 +1,32 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/home/test \
+USER=test \
+LOGNAME=test \
+QEMU_AUDIO_DRV=none \
+/usr/bin/qemu-system-s390x \
+-name guest=QEMUGuest1,debug-threads=on \
+-S \
+-object secret,id=masterKey0,format=raw,\
+file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
+-machine s390-ccw-virtio,accel=tcg,usb=off,dump-guest-core=off \
+-m 214 \
+-realtime mlock=off \
+-smp 1,sockets=1,cores=1,threads=1 \
+-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
+-display none \
+-no-user-config \
+-nodefaults \
+-chardev socket,id=charmonitor,fd=1729,server,nowait \
+-mon chardev=charmonitor,id=monitor,mode=control \
+-rtc base=utc \
+-no-shutdown \
+-boot strict=on \
+-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-virtio-disk0 \
+-device virtio-blk-ccw,scsi=off,devno=fe.0.0000,drive=drive-virtio-disk0,\
+id=virtio-disk0,bootindex=1 \
+-device virtio-balloon-ccw,id=balloon0,devno=fe.0.0001 \
+-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
+resourcecontrol=deny \
+-device vhost-vsock-ccw,id=vsock0,guest-cid=42,vhostfd=6789,devno=fe.0.0002 \
+-msg timestamp=on

tests/qemuxml2argvdata/vhost-vsock-ccw-auto.xml

@@ -0,0 +1,25 @@
+<domain type='qemu'>
+  <name>QEMUGuest1</name>
+  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+  <memory unit='KiB'>219136</memory>
+  <currentMemory unit='KiB'>219136</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='s390x' machine='s390-ccw-virtio'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-s390x</emulator>
+    <disk type='block' device='disk'>
+      <source dev='/dev/HostVG/QEMUGuest1'/>
+      <target dev='hda' bus='virtio'/>
+    </disk>
+    <vsock>
+      <cid auto='yes'/>
+    </vsock>
+  </devices>
+</domain>

tests/qemuxml2argvdata/vhost-vsock-ccw.s390x-latest.args

@@ -0,0 +1,32 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/home/test \
+USER=test \
+LOGNAME=test \
+QEMU_AUDIO_DRV=none \
+/usr/bin/qemu-system-s390x \
+-name guest=QEMUGuest1,debug-threads=on \
+-S \
+-object secret,id=masterKey0,format=raw,\
+file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
+-machine s390-ccw-virtio,accel=tcg,usb=off,dump-guest-core=off \
+-m 214 \
+-realtime mlock=off \
+-smp 1,sockets=1,cores=1,threads=1 \
+-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \
+-display none \
+-no-user-config \
+-nodefaults \
+-chardev socket,id=charmonitor,fd=1729,server,nowait \
+-mon chardev=charmonitor,id=monitor,mode=control \
+-rtc base=utc \
+-no-shutdown \
+-boot strict=on \
+-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-virtio-disk0 \
+-device virtio-blk-ccw,scsi=off,devno=fe.0.0000,drive=drive-virtio-disk0,\
+id=virtio-disk0,bootindex=1 \
+-device virtio-balloon-ccw,id=balloon0,devno=fe.0.0001 \
+-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
+resourcecontrol=deny \
+-device vhost-vsock-ccw,id=vsock0,guest-cid=4,vhostfd=6789,devno=fe.0.0003 \
+-msg timestamp=on

tests/qemuxml2argvdata/vhost-vsock-ccw.xml

@@ -0,0 +1,32 @@
+<domain type='qemu'>
+  <name>QEMUGuest1</name>
+  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+  <memory unit='KiB'>219136</memory>
+  <currentMemory unit='KiB'>219136</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='s390x' machine='s390-ccw-virtio'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-s390x</emulator>
+    <disk type='block' device='disk'>
+      <driver name='qemu' type='raw'/>
+      <source dev='/dev/HostVG/QEMUGuest1'/>
+      <target dev='hda' bus='virtio'/>
+      <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0000'/>
+    </disk>
+    <memballoon model='virtio'>
+      <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0001'/>
+    </memballoon>
+    <panic model='s390'/>
+    <vsock model='virtio'>
+      <cid auto='no' address='4'/>
+      <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0003'/>
+    </vsock>
+  </devices>
+</domain>

tests/qemuxml2argvtest.c

@@ -2952,6 +2952,8 @@ mymain(void)
 
     DO_TEST_CAPS_LATEST("vhost-vsock");
     DO_TEST_CAPS_LATEST("vhost-vsock-auto");
+    DO_TEST_CAPS_ARCH_LATEST("vhost-vsock-ccw", "s390x");
+    DO_TEST_CAPS_ARCH_LATEST("vhost-vsock-ccw-auto", "s390x");
 
     DO_TEST("launch-security-sev",
             QEMU_CAPS_KVM,

tests/qemuxml2xmloutdata/vhost-vsock-ccw-auto.xml

@@ -0,0 +1,32 @@
+<domain type='qemu'>
+  <name>QEMUGuest1</name>
+  <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid>
+  <memory unit='KiB'>219136</memory>
+  <currentMemory unit='KiB'>219136</currentMemory>
+  <vcpu placement='static'>1</vcpu>
+  <os>
+    <type arch='s390x' machine='s390-ccw-virtio'>hvm</type>
+    <boot dev='hd'/>
+  </os>
+  <clock offset='utc'/>
+  <on_poweroff>destroy</on_poweroff>
+  <on_reboot>restart</on_reboot>
+  <on_crash>destroy</on_crash>
+  <devices>
+    <emulator>/usr/bin/qemu-system-s390x</emulator>
+    <disk type='block' device='disk'>
+      <driver name='qemu' type='raw'/>
+      <source dev='/dev/HostVG/QEMUGuest1'/>
+      <target dev='hda' bus='virtio'/>
+      <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0000'/>
+    </disk>
+    <memballoon model='virtio'>
+      <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0001'/>
+    </memballoon>
+    <panic model='s390'/>
+    <vsock model='virtio'>
+      <cid auto='yes'/>
+      <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0002'/>
+    </vsock>
+  </devices>
+</domain>

tests/qemuxml2xmloutdata/vhost-vsock-ccw.xml

@@ -0,0 +1 @@
+../qemuxml2argvdata/vhost-vsock-ccw.xml

tests/qemuxml2xmltest.c

@@ -1208,6 +1208,11 @@ mymain(void)
 
     DO_TEST("vhost-vsock", QEMU_CAPS_DEVICE_VHOST_VSOCK);
     DO_TEST("vhost-vsock-auto", QEMU_CAPS_DEVICE_VHOST_VSOCK);
+    DO_TEST("vhost-vsock-ccw", QEMU_CAPS_DEVICE_VHOST_VSOCK,
+            QEMU_CAPS_CCW);
+    DO_TEST("vhost-vsock-ccw-auto", QEMU_CAPS_DEVICE_VHOST_VSOCK,
+            QEMU_CAPS_CCW);
+
 
     if (getenv("LIBVIRT_SKIP_CLEANUP") == NULL)
         virFileDeleteTree(fakerootdir);