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[libvirt] [PATCH v2 17/25] conf: Add <filesystem model='virtio-9p-{non-}transitional'/>



<filesystem> devices lack the model= attribute which is used by
most other device types. To eventually support
virtio-9p-pci-{non-}traditional in qemu, let's add a standard
model= attribute. The accepted values are:

- virtio-9p
- virtio-9p-transitional
- virtio-9p-non-transitional

The divergence in naming from other *-transitional values is
because we expect to support virtio-fs in the future.

Signed-off-by: Cole Robinson <crobinso redhat com>
---
 docs/formatdomain.html.in                     |  4 +++
 docs/schemas/domaincommon.rng                 |  9 +++++
 src/conf/domain_conf.c                        | 33 +++++++++++++++++--
 src/conf/domain_conf.h                        | 11 +++++++
 .../virtio-non-transitional.x86_64-3.1.0.args | 11 ++++---
 ...virtio-non-transitional.x86_64-latest.args | 11 ++++---
 .../virtio-non-transitional.xml               |  4 +++
 .../virtio-transitional.x86_64-3.1.0.args     | 15 +++++----
 .../virtio-transitional.x86_64-latest.args    | 15 +++++----
 .../qemuxml2argvdata/virtio-transitional.xml  |  4 +++
 .../virtio-non-transitional.xml               | 18 +++++++---
 .../virtio-transitional.xml                   | 26 ++++++++++-----
 12 files changed, 127 insertions(+), 34 deletions(-)

diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index bf64bf9feb..1f39601749 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -3880,6 +3880,10 @@
         </dd>
         </dl>
 
+      <span class="since">Since 5.1.0</span>, the filesystem element
+      has an optional attribute <code>model</code> with supported values
+      "virtio-9p-transitional", "virtio-9p-non-transitional", or
+      "virtio-9p" which matches the default behavior of the QEMU driver.
       </dd>
 
       <dt><code>driver</code></dt>
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index 58ae874dfd..a6783a55c7 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -2499,6 +2499,15 @@
           </element>
         </optional>
       </interleave>
+      <optional>
+        <attribute name="model">
+          <choice>
+            <value>virtio-9p</value>
+            <value>virtio-9p-transitional</value>
+            <value>virtio-9p-non-transitional</value>
+          </choice>
+        </attribute>
+      </optional>
     </element>
   </define>
   <define name="fsDriver">
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index fa772da52f..9bfedcb219 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -408,6 +408,13 @@ VIR_ENUM_IMPL(virDomainFSWrpolicy, VIR_DOMAIN_FS_WRPOLICY_LAST,
               "default",
               "immediate")
 
+VIR_ENUM_IMPL(virDomainFSModel, VIR_DOMAIN_FS_MODEL_LAST,
+              "default",
+              "virtio-9p",
+              "virtio-9p-transitional",
+              "virtio-9p-non-transitional",
+);
+
 VIR_ENUM_IMPL(virDomainNet, VIR_DOMAIN_NET_TYPE_LAST,
               "user",
               "ethernet",
@@ -10723,6 +10730,7 @@ virDomainFSDefParseXML(virDomainXMLOptionPtr xmlopt,
     char *wrpolicy = NULL;
     char *usage = NULL;
     char *units = NULL;
+    char *model = NULL;
 
     ctxt->node = node;
 
@@ -10751,6 +10759,15 @@ virDomainFSDefParseXML(virDomainXMLOptionPtr xmlopt,
         def->accessmode = VIR_DOMAIN_FS_ACCESSMODE_PASSTHROUGH;
     }
 
+    model = virXMLPropString(node, "model");
+    if (model) {
+        if ((def->model = virDomainFSModelTypeFromString(model)) < 0) {
+            virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+                           _("unknown model '%s'"), model);
+            goto error;
+        }
+    }
+
     if (virDomainParseScaledValue("./space_hard_limit[1]",
                                   NULL, ctxt, &def->space_hard_limit,
                                   1, ULLONG_MAX, false) < 0)
@@ -10879,6 +10896,7 @@ virDomainFSDefParseXML(virDomainXMLOptionPtr xmlopt,
     VIR_FREE(usage);
     VIR_FREE(units);
     VIR_FREE(format);
+    VIR_FREE(model);
 
     return def;
 
@@ -22007,6 +22025,12 @@ virDomainFsDefCheckABIStability(virDomainFSDefPtr src,
         return false;
     }
 
+    if (src->model != dst->model) {
+        virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
+                       _("Target filesystem model does not match source"));
+        return false;
+    }
+
     if (src->virtio && dst->virtio &&
         !virDomainVirtioOptionsCheckABIStability(src->virtio, dst->virtio))
         return false;
@@ -24812,10 +24836,15 @@ virDomainFSDefFormat(virBufferPtr buf,
         goto cleanup;
     }
 
-
     virBufferAsprintf(buf,
-                      "<filesystem type='%s' accessmode='%s'>\n",
+                      "<filesystem type='%s' accessmode='%s'",
                       type, accessmode);
+    if (def->model) {
+        virBufferAsprintf(buf, " model='%s'",
+                          virDomainFSModelTypeToString(def->model));
+    }
+    virBufferAddLit(buf, ">\n");
+
     virBufferAdjustIndent(buf, 2);
     if (def->fsdriver) {
         virBufferAsprintf(&driverBuf, " type='%s'", fsdriver);
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index d73fcd1221..5d24cb0259 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -903,12 +903,22 @@ typedef enum {
     VIR_DOMAIN_FS_WRPOLICY_LAST
 } virDomainFSWrpolicy;
 
+typedef enum {
+    VIR_DOMAIN_FS_MODEL_DEFAULT = 0,
+    VIR_DOMAIN_FS_MODEL_VIRTIO_9P,
+    VIR_DOMAIN_FS_MODEL_VIRTIO_9P_TRANSITIONAL,
+    VIR_DOMAIN_FS_MODEL_VIRTIO_9P_NON_TRANSITIONAL,
+
+    VIR_DOMAIN_FS_MODEL_LAST
+} virDomainFSModel;
+
 struct _virDomainFSDef {
     int type;
     int fsdriver; /* enum virDomainFSDriverType */
     int accessmode; /* enum virDomainFSAccessMode */
     int wrpolicy; /* enum virDomainFSWrpolicy */
     int format; /* virStorageFileFormat */
+    int model; /* virDomainFSModel */
     unsigned long long usage; /* in bytes */
     virStorageSourcePtr src;
     char *dst;
@@ -3453,6 +3463,7 @@ VIR_ENUM_DECL(virDomainFS)
 VIR_ENUM_DECL(virDomainFSDriver)
 VIR_ENUM_DECL(virDomainFSAccessMode)
 VIR_ENUM_DECL(virDomainFSWrpolicy)
+VIR_ENUM_DECL(virDomainFSModel)
 VIR_ENUM_DECL(virDomainNet)
 VIR_ENUM_DECL(virDomainNetBackend)
 VIR_ENUM_DECL(virDomainNetVirtioTxMode)
diff --git a/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-3.1.0.args b/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-3.1.0.args
index 10cc6236cb..824737338a 100644
--- a/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-3.1.0.args
+++ b/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-3.1.0.args
@@ -29,17 +29,20 @@ addr=0x1 \
 -device pcie-root-port,port=0xa,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x2 \
 -device pcie-root-port,port=0xb,chassis=4,id=pci.4,bus=pcie.0,addr=0x1.0x3 \
 -device pcie-root-port,port=0xc,chassis=5,id=pci.5,bus=pcie.0,addr=0x1.0x4 \
+-device pcie-root-port,port=0xd,chassis=6,id=pci.6,bus=pcie.0,addr=0x1.0x5 \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-virtio-disk0 \
--device virtio-blk-pci,disable-legacy=on,disable-modern=off,scsi=off,bus=pci.2,\
+-device virtio-blk-pci,disable-legacy=on,disable-modern=off,scsi=off,bus=pci.3,\
 addr=0x0,drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \
+-fsdev local,security_model=passthrough,id=fsdev-fs0,path=/export/fs1 \
+-device virtio-9p-pci,id=fs0,fsdev=fsdev-fs0,mount_tag=fs1,bus=pci.1,addr=0x0 \
 -netdev user,id=hostnet0 \
 -device virtio-net-pci,disable-legacy=on,disable-modern=off,netdev=hostnet0,\
-id=net0,mac=00:11:22:33:44:55,bus=pci.1,addr=0x0 \
+id=net0,mac=00:11:22:33:44:55,bus=pci.2,addr=0x0 \
 -device vhost-scsi-pci,disable-legacy=on,disable-modern=off,\
-wwpn=naa.5123456789abcde0,vhostfd=3,id=hostdev0,bus=pci.3,addr=0x0 \
+wwpn=naa.5123456789abcde0,vhostfd=3,id=hostdev0,bus=pci.4,addr=0x0 \
 -object rng-random,id=objrng0,filename=/dev/urandom \
 -device virtio-rng-pci,disable-legacy=on,disable-modern=off,rng=objrng0,\
-id=rng0,bus=pci.4,addr=0x0 \
+id=rng0,bus=pci.5,addr=0x0 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
 resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-latest.args
index a0fc475c2f..e454eeadbd 100644
--- a/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-non-transitional.x86_64-latest.args
@@ -29,16 +29,19 @@ addr=0x1 \
 -device pcie-root-port,port=0xa,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x2 \
 -device pcie-root-port,port=0xb,chassis=4,id=pci.4,bus=pcie.0,addr=0x1.0x3 \
 -device pcie-root-port,port=0xc,chassis=5,id=pci.5,bus=pcie.0,addr=0x1.0x4 \
+-device pcie-root-port,port=0xd,chassis=6,id=pci.6,bus=pcie.0,addr=0x1.0x5 \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-virtio-disk0 \
--device virtio-blk-pci-non-transitional,scsi=off,bus=pci.2,addr=0x0,\
+-device virtio-blk-pci-non-transitional,scsi=off,bus=pci.3,addr=0x0,\
 drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \
+-fsdev local,security_model=passthrough,id=fsdev-fs0,path=/export/fs1 \
+-device virtio-9p-pci,id=fs0,fsdev=fsdev-fs0,mount_tag=fs1,bus=pci.1,addr=0x0 \
 -netdev user,id=hostnet0 \
 -device virtio-net-pci-non-transitional,netdev=hostnet0,id=net0,\
-mac=00:11:22:33:44:55,bus=pci.1,addr=0x0 \
+mac=00:11:22:33:44:55,bus=pci.2,addr=0x0 \
 -device vhost-scsi-pci-non-transitional,wwpn=naa.5123456789abcde0,vhostfd=3,\
-id=hostdev0,bus=pci.3,addr=0x0 \
+id=hostdev0,bus=pci.4,addr=0x0 \
 -object rng-random,id=objrng0,filename=/dev/urandom \
--device virtio-rng-pci-non-transitional,rng=objrng0,id=rng0,bus=pci.4,addr=0x0 \
+-device virtio-rng-pci-non-transitional,rng=objrng0,id=rng0,bus=pci.5,addr=0x0 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
 resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-non-transitional.xml b/tests/qemuxml2argvdata/virtio-non-transitional.xml
index 2075ccbf57..5f14e082cd 100644
--- a/tests/qemuxml2argvdata/virtio-non-transitional.xml
+++ b/tests/qemuxml2argvdata/virtio-non-transitional.xml
@@ -22,6 +22,10 @@
     <rng model='virtio-non-transitional'>
       <backend model='random'>/dev/urandom</backend>
     </rng>
+    <filesystem type='mount' accessmode='passthrough' model='virtio-9p-non-transitional'>
+      <source dir='/export/fs1'/>
+      <target dir='fs1'/>
+    </filesystem>
     <controller type='usb' index='0' model='none'/>
     <memballoon model='none'/>
   </devices>
diff --git a/tests/qemuxml2argvdata/virtio-transitional.x86_64-3.1.0.args b/tests/qemuxml2argvdata/virtio-transitional.x86_64-3.1.0.args
index dc830d21b1..6f07d5b707 100644
--- a/tests/qemuxml2argvdata/virtio-transitional.x86_64-3.1.0.args
+++ b/tests/qemuxml2argvdata/virtio-transitional.x86_64-3.1.0.args
@@ -25,18 +25,21 @@ file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
 -boot strict=on \
 -device pcie-root-port,port=0x8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,\
 addr=0x1 \
--device pcie-pci-bridge,id=pci.2,bus=pci.1,addr=0x0 \
--device pcie-root-port,port=0x9,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x1 \
+-device pcie-root-port,port=0x9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
+-device pcie-pci-bridge,id=pci.3,bus=pci.1,addr=0x0 \
+-device pcie-root-port,port=0xa,chassis=4,id=pci.4,bus=pcie.0,addr=0x1.0x2 \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-virtio-disk0 \
--device virtio-blk-pci,scsi=off,bus=pci.2,addr=0x2,drive=drive-virtio-disk0,\
+-device virtio-blk-pci,scsi=off,bus=pci.3,addr=0x2,drive=drive-virtio-disk0,\
 id=virtio-disk0,bootindex=1 \
+-fsdev local,security_model=passthrough,id=fsdev-fs0,path=/export/fs1 \
+-device virtio-9p-pci,id=fs0,fsdev=fsdev-fs0,mount_tag=fs1,bus=pci.2,addr=0x0 \
 -netdev user,id=hostnet0 \
--device virtio-net-pci,netdev=hostnet0,id=net0,mac=00:11:22:33:44:55,bus=pci.2,\
+-device virtio-net-pci,netdev=hostnet0,id=net0,mac=00:11:22:33:44:55,bus=pci.3,\
 addr=0x1 \
 -device vhost-scsi-pci,wwpn=naa.5123456789abcde0,vhostfd=3,id=hostdev0,\
-bus=pci.2,addr=0x3 \
+bus=pci.3,addr=0x3 \
 -object rng-random,id=objrng0,filename=/dev/urandom \
--device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.2,addr=0x4 \
+-device virtio-rng-pci,rng=objrng0,id=rng0,bus=pci.3,addr=0x4 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
 resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-transitional.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-transitional.x86_64-latest.args
index 64fb4153fd..43c1cafd45 100644
--- a/tests/qemuxml2argvdata/virtio-transitional.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-transitional.x86_64-latest.args
@@ -25,18 +25,21 @@ file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \
 -boot strict=on \
 -device pcie-root-port,port=0x8,chassis=1,id=pci.1,bus=pcie.0,multifunction=on,\
 addr=0x1 \
--device pcie-pci-bridge,id=pci.2,bus=pci.1,addr=0x0 \
--device pcie-root-port,port=0x9,chassis=3,id=pci.3,bus=pcie.0,addr=0x1.0x1 \
+-device pcie-root-port,port=0x9,chassis=2,id=pci.2,bus=pcie.0,addr=0x1.0x1 \
+-device pcie-pci-bridge,id=pci.3,bus=pci.1,addr=0x0 \
+-device pcie-root-port,port=0xa,chassis=4,id=pci.4,bus=pcie.0,addr=0x1.0x2 \
 -drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-virtio-disk0 \
--device virtio-blk-pci-transitional,scsi=off,bus=pci.2,addr=0x2,\
+-device virtio-blk-pci-transitional,scsi=off,bus=pci.3,addr=0x2,\
 drive=drive-virtio-disk0,id=virtio-disk0,bootindex=1 \
+-fsdev local,security_model=passthrough,id=fsdev-fs0,path=/export/fs1 \
+-device virtio-9p-pci,id=fs0,fsdev=fsdev-fs0,mount_tag=fs1,bus=pci.2,addr=0x0 \
 -netdev user,id=hostnet0 \
 -device virtio-net-pci-transitional,netdev=hostnet0,id=net0,\
-mac=00:11:22:33:44:55,bus=pci.2,addr=0x1 \
+mac=00:11:22:33:44:55,bus=pci.3,addr=0x1 \
 -device vhost-scsi-pci-transitional,wwpn=naa.5123456789abcde0,vhostfd=3,\
-id=hostdev0,bus=pci.2,addr=0x3 \
+id=hostdev0,bus=pci.3,addr=0x3 \
 -object rng-random,id=objrng0,filename=/dev/urandom \
--device virtio-rng-pci-transitional,rng=objrng0,id=rng0,bus=pci.2,addr=0x4 \
+-device virtio-rng-pci-transitional,rng=objrng0,id=rng0,bus=pci.3,addr=0x4 \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\
 resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-transitional.xml b/tests/qemuxml2argvdata/virtio-transitional.xml
index 82535c84d6..44639a970c 100644
--- a/tests/qemuxml2argvdata/virtio-transitional.xml
+++ b/tests/qemuxml2argvdata/virtio-transitional.xml
@@ -22,6 +22,10 @@
     <rng model='virtio-transitional'>
       <backend model='random'>/dev/urandom</backend>
     </rng>
+    <filesystem type='mount' accessmode='passthrough' model='virtio-9p-transitional'>
+      <source dir='/export/fs1'/>
+      <target dir='fs1'/>
+    </filesystem>
     <controller type='usb' index='0' model='none'/>
     <memballoon model='none'/>
   </devices>
diff --git a/tests/qemuxml2xmloutdata/virtio-non-transitional.xml b/tests/qemuxml2xmloutdata/virtio-non-transitional.xml
index 4a315050ab..a903d44c34 100644
--- a/tests/qemuxml2xmloutdata/virtio-non-transitional.xml
+++ b/tests/qemuxml2xmloutdata/virtio-non-transitional.xml
@@ -18,7 +18,7 @@
       <driver name='qemu' type='raw'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='vda' bus='virtio'/>
-      <address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
     </disk>
     <controller type='usb' index='0' model='none'/>
     <controller type='sata' index='0'>
@@ -50,21 +50,31 @@
       <target chassis='5' port='0xc'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x4'/>
     </controller>
+    <controller type='pci' index='6' model='pcie-root-port'>
+      <model name='pcie-root-port'/>
+      <target chassis='6' port='0xd'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x5'/>
+    </controller>
+    <filesystem type='mount' accessmode='passthrough' model='virtio-9p-non-transitional'>
+      <source dir='/export/fs1'/>
+      <target dir='fs1'/>
+      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
+    </filesystem>
     <interface type='user'>
       <mac address='00:11:22:33:44:55'/>
       <model type='virtio-non-transitional'/>
-      <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/>
     </interface>
     <input type='mouse' bus='ps2'/>
     <input type='keyboard' bus='ps2'/>
     <hostdev mode='subsystem' type='scsi_host' managed='no' model='virtio-non-transitional'>
       <source protocol='vhost' wwpn='naa.5123456789abcde0'/>
-      <address type='pci' domain='0x0000' bus='0x03' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
     </hostdev>
     <memballoon model='none'/>
     <rng model='virtio-non-transitional'>
       <backend model='random'>/dev/urandom</backend>
-      <address type='pci' domain='0x0000' bus='0x04' slot='0x00' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x05' slot='0x00' function='0x0'/>
     </rng>
   </devices>
 </domain>
diff --git a/tests/qemuxml2xmloutdata/virtio-transitional.xml b/tests/qemuxml2xmloutdata/virtio-transitional.xml
index ae3789ad93..61a3f91ef8 100644
--- a/tests/qemuxml2xmloutdata/virtio-transitional.xml
+++ b/tests/qemuxml2xmloutdata/virtio-transitional.xml
@@ -18,7 +18,7 @@
       <driver name='qemu' type='raw'/>
       <source dev='/dev/HostVG/QEMUGuest1'/>
       <target dev='vda' bus='virtio'/>
-      <address type='pci' domain='0x0000' bus='0x02' slot='0x02' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x02' function='0x0'/>
     </disk>
     <controller type='usb' index='0' model='none'/>
     <controller type='sata' index='0'>
@@ -30,30 +30,40 @@
       <target chassis='1' port='0x8'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0' multifunction='on'/>
     </controller>
-    <controller type='pci' index='2' model='pcie-to-pci-bridge'>
+    <controller type='pci' index='2' model='pcie-root-port'>
+      <model name='pcie-root-port'/>
+      <target chassis='2' port='0x9'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
+    </controller>
+    <controller type='pci' index='3' model='pcie-to-pci-bridge'>
       <model name='pcie-pci-bridge'/>
       <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
     </controller>
-    <controller type='pci' index='3' model='pcie-root-port'>
+    <controller type='pci' index='4' model='pcie-root-port'>
       <model name='pcie-root-port'/>
-      <target chassis='3' port='0x9'/>
-      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
+      <target chassis='4' port='0xa'/>
+      <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x2'/>
     </controller>
+    <filesystem type='mount' accessmode='passthrough' model='virtio-9p-transitional'>
+      <source dir='/export/fs1'/>
+      <target dir='fs1'/>
+      <address type='pci' domain='0x0000' bus='0x02' slot='0x00' function='0x0'/>
+    </filesystem>
     <interface type='user'>
       <mac address='00:11:22:33:44:55'/>
       <model type='virtio-transitional'/>
-      <address type='pci' domain='0x0000' bus='0x02' slot='0x01' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x01' function='0x0'/>
     </interface>
     <input type='mouse' bus='ps2'/>
     <input type='keyboard' bus='ps2'/>
     <hostdev mode='subsystem' type='scsi_host' managed='no' model='virtio-transitional'>
       <source protocol='vhost' wwpn='naa.5123456789abcde0'/>
-      <address type='pci' domain='0x0000' bus='0x02' slot='0x03' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x03' function='0x0'/>
     </hostdev>
     <memballoon model='none'/>
     <rng model='virtio-transitional'>
       <backend model='random'>/dev/urandom</backend>
-      <address type='pci' domain='0x0000' bus='0x02' slot='0x04' function='0x0'/>
+      <address type='pci' domain='0x0000' bus='0x03' slot='0x04' function='0x0'/>
     </rng>
   </devices>
 </domain>
-- 
2.20.1


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