[PATCH v3 2/2] qemu: Add support for virtio device option page-per-vq

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Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1925363

Signed-off-by: Han Han <hhan@xxxxxxxxxx>
---
 src/qemu/qemu_command.c                       |  1 +
 src/qemu/qemu_hotplug.c                       |  3 ++-
 src/qemu/qemu_validate.c                      |  1 +
 .../virtio-options.x86_64-latest.args         | 24 ++++++++---------
 tests/qemuxml2argvdata/virtio-options.xml     | 26 +++++++++----------
 5 files changed, 29 insertions(+), 26 deletions(-)

diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index 3b2f88bcb9..dba877a740 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -1122,6 +1122,7 @@ qemuBuildVirtioDevProps(virDomainDeviceType devtype,
                                   "T:iommu_platform", virtioOptions->iommu,
                                   "T:ats", virtioOptions->ats,
                                   "T:packed", virtioOptions->packed,
+                                  "T:page-per-vq", virtioOptions->page_per_vq,
                                   NULL) < 0)
             return NULL;
     }
diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index af49e58f8e..a7b432b6f5 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -3797,7 +3797,8 @@ qemuDomainChangeNet(virQEMUDriver *driver,
         (olddev->virtio && newdev->virtio &&
          (olddev->virtio->iommu != newdev->virtio->iommu ||
           olddev->virtio->ats != newdev->virtio->ats ||
-          olddev->virtio->packed != newdev->virtio->packed))) {
+          olddev->virtio->packed != newdev->virtio->packed ||
+          olddev->virtio->page_per_vq != newdev->virtio->page_per_vq))) {
         virReportError(VIR_ERR_OPERATION_UNSUPPORTED, "%s",
                        _("cannot modify virtio network device driver options"));
            goto cleanup;
diff --git a/src/qemu/qemu_validate.c b/src/qemu/qemu_validate.c
index 75dc9edb7d..4a82b512d1 100644
--- a/src/qemu/qemu_validate.c
+++ b/src/qemu/qemu_validate.c
@@ -1592,6 +1592,7 @@ qemuValidateDomainVirtioOptions(const virDomainVirtioOptions *virtio,
                              "QEMU binary"));
             return -1;
         }
+
     return 0;
 }
 
diff --git a/tests/qemuxml2argvdata/virtio-options.x86_64-latest.args b/tests/qemuxml2argvdata/virtio-options.x86_64-latest.args
index d6dcbdd90f..6a55134ee8 100644
--- a/tests/qemuxml2argvdata/virtio-options.x86_64-latest.args
+++ b/tests/qemuxml2argvdata/virtio-options.x86_64-latest.args
@@ -27,26 +27,26 @@ XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
 -no-acpi \
 -boot strict=on \
 -device piix3-usb-uhci,id=usb,bus=pci.0,addr=0x1.0x2 \
--device virtio-scsi-pci,iommu_platform=on,ats=on,packed=on,id=scsi0,bus=pci.0,addr=0x8 \
--device virtio-serial-pci,iommu_platform=on,ats=on,packed=on,id=virtio-serial0,bus=pci.0,addr=0x9 \
+-device virtio-scsi-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=scsi0,bus=pci.0,addr=0x8 \
+-device virtio-serial-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=virtio-serial0,bus=pci.0,addr=0x9 \
 -blockdev '{"driver":"file","filename":"/var/lib/libvirt/images/img1","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \
 -blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw","file":"libvirt-1-storage"}' \
--device virtio-blk-pci,iommu_platform=on,ats=on,packed=on,bus=pci.0,addr=0xa,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
+-device virtio-blk-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,bus=pci.0,addr=0xa,drive=libvirt-1-format,id=virtio-disk0,bootindex=1 \
 -fsdev local,security_model=passthrough,id=fsdev-fs0,path=/export/fs1 \
--device virtio-9p-pci,iommu_platform=on,ats=on,packed=on,id=fs0,fsdev=fsdev-fs0,mount_tag=fs1,bus=pci.0,addr=0x3 \
+-device virtio-9p-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=fs0,fsdev=fsdev-fs0,mount_tag=fs1,bus=pci.0,addr=0x3 \
 -fsdev local,security_model=mapped,writeout=immediate,id=fsdev-fs1,path=/export/fs2 \
--device virtio-9p-pci,iommu_platform=on,ats=on,packed=on,id=fs1,fsdev=fsdev-fs1,mount_tag=fs2,bus=pci.0,addr=0x4 \
+-device virtio-9p-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=fs1,fsdev=fsdev-fs1,mount_tag=fs2,bus=pci.0,addr=0x4 \
 -netdev user,id=hostnet0 \
--device virtio-net-pci,iommu_platform=on,ats=on,packed=on,netdev=hostnet0,id=net0,mac=52:54:56:58:5a:5c,bus=pci.0,addr=0x6 \
--device virtio-mouse-pci,iommu_platform=on,ats=on,packed=on,id=input0,bus=pci.0,addr=0xe \
--device virtio-keyboard-pci,iommu_platform=on,ats=on,packed=on,id=input1,bus=pci.0,addr=0x10 \
--device virtio-tablet-pci,iommu_platform=on,ats=on,packed=on,id=input2,bus=pci.0,addr=0x11 \
--device virtio-input-host-pci,iommu_platform=on,ats=on,packed=on,id=input3,evdev=/dev/input/event1234,bus=pci.0,addr=0x12 \
+-device virtio-net-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,netdev=hostnet0,id=net0,mac=52:54:56:58:5a:5c,bus=pci.0,addr=0x6 \
+-device virtio-mouse-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=input0,bus=pci.0,addr=0xe \
+-device virtio-keyboard-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=input1,bus=pci.0,addr=0x10 \
+-device virtio-tablet-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=input2,bus=pci.0,addr=0x11 \
+-device virtio-input-host-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=input3,evdev=/dev/input/event1234,bus=pci.0,addr=0x12 \
 -audiodev id=audio1,driver=none \
 -chardev socket,id=chr-vu-video0,fd=1729 \
 -device vhost-user-vga,id=video0,max_outputs=1,chardev=chr-vu-video0,bus=pci.0,addr=0x2 \
--device virtio-balloon-pci,iommu_platform=on,ats=on,packed=on,id=balloon0,bus=pci.0,addr=0xc \
+-device virtio-balloon-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,id=balloon0,bus=pci.0,addr=0xc \
 -object '{"qom-type":"rng-random","id":"objrng0","filename":"/dev/random"}' \
--device virtio-rng-pci,iommu_platform=on,ats=on,packed=on,rng=objrng0,id=rng0,bus=pci.0,addr=0xd \
+-device virtio-rng-pci,iommu_platform=on,ats=on,packed=on,page-per-vq=on,rng=objrng0,id=rng0,bus=pci.0,addr=0xd \
 -sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
 -msg timestamp=on
diff --git a/tests/qemuxml2argvdata/virtio-options.xml b/tests/qemuxml2argvdata/virtio-options.xml
index 9c9b80d5c4..59e293d8e9 100644
--- a/tests/qemuxml2argvdata/virtio-options.xml
+++ b/tests/qemuxml2argvdata/virtio-options.xml
@@ -18,7 +18,7 @@
   <devices>
     <emulator>/usr/bin/qemu-system-x86_64</emulator>
     <disk type='file' device='disk'>
-      <driver name='qemu' type='raw' iommu='on' ats='on' packed='on'/>
+      <driver name='qemu' type='raw' iommu='on' ats='on' packed='on' page_per_vq='on'/>
       <source file='/var/lib/libvirt/images/img1'/>
       <target dev='vda' bus='virtio'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x0a' function='0x0'/>
@@ -30,22 +30,22 @@
       <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
     </controller>
     <controller type='scsi' index='0' model='virtio-scsi'>
-      <driver iommu='on' ats='on' packed='on'/>
+      <driver iommu='on' ats='on' packed='on' page_per_vq='on'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x08' function='0x0'/>
     </controller>
     <controller type='pci' index='0' model='pci-root'/>
     <controller type='virtio-serial' index='0'>
-      <driver iommu='on' ats='on' packed='on'/>
+      <driver iommu='on' ats='on' packed='on' page_per_vq='on'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x09' function='0x0'/>
     </controller>
     <filesystem type='mount' accessmode='passthrough'>
-      <driver iommu='on' ats='on' packed='on'/>
+      <driver iommu='on' ats='on' packed='on' page_per_vq='on'/>
       <source dir='/export/fs1'/>
       <target dir='fs1'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
     </filesystem>
     <filesystem type='mount' accessmode='mapped'>
-      <driver type='path' wrpolicy='immediate' iommu='on' ats='on' packed='on'/>
+      <driver type='path' wrpolicy='immediate' iommu='on' ats='on' packed='on' page_per_vq='on'/>
       <source dir='/export/fs2'/>
       <target dir='fs2'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
@@ -53,23 +53,23 @@
     <interface type='user'>
       <mac address='52:54:56:58:5a:5c'/>
       <model type='virtio'/>
-      <driver iommu='on' ats='on' packed='on'/>
+      <driver iommu='on' ats='on' packed='on' page_per_vq='on'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
     </interface>
     <input type='mouse' bus='virtio'>
-      <driver iommu='on' ats='on' packed='on'/>
+      <driver iommu='on' ats='on' packed='on' page_per_vq='on'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x0e' function='0x0'/>
     </input>
     <input type='keyboard' bus='virtio'>
-      <driver iommu='on' ats='on' packed='on'/>
+      <driver iommu='on' ats='on' packed='on' page_per_vq='on'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x10' function='0x0'/>
     </input>
     <input type='tablet' bus='virtio'>
-      <driver iommu='on' ats='on' packed='on'/>
+      <driver iommu='on' ats='on' packed='on' page_per_vq='on'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x11' function='0x0'/>
     </input>
     <input type='passthrough' bus='virtio'>
-      <driver iommu='on' ats='on' packed='on'/>
+      <driver iommu='on' ats='on' packed='on' page_per_vq='on'/>
       <source evdev='/dev/input/event1234'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x12' function='0x0'/>
     </input>
@@ -77,7 +77,7 @@
     <input type='keyboard' bus='ps2'/>
     <audio id='1' type='none'/>
     <video>
-      <driver iommu='on' ats='on' packed='on' name='vhostuser'/>
+      <driver iommu='on' ats='on' packed='on' page_per_vq='on' name='vhostuser'/>
       <model type='virtio' heads='1' primary='yes'>
         <acceleration accel3d='yes' rendernode='/dev/dri/test'/>
       </model>
@@ -85,11 +85,11 @@
     </video>
     <memballoon model='virtio'>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x0c' function='0x0'/>
-      <driver iommu='on' ats='on' packed='on'/>
+      <driver iommu='on' ats='on' packed='on' page_per_vq='on'/>
     </memballoon>
     <rng model='virtio'>
       <backend model='random'>/dev/random</backend>
-      <driver iommu='on' ats='on' packed='on'/>
+      <driver iommu='on' ats='on' packed='on' page_per_vq='on'/>
       <address type='pci' domain='0x0000' bus='0x00' slot='0x0d' function='0x0'/>
     </rng>
   </devices>
-- 
2.31.1




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