From 1b084c7ff54f1bb36c9e0dee3e1c86a250f3d6af Mon Sep 17 00:00:00 2001
Message-Id: <1b084c7ff54f1bb36c9e0dee3e1c86a250f3d6af@dist-git>
From: Boris Fiuczynski <fiuczy@linux.ibm.com>
Date: Tue, 23 Mar 2021 10:25:46 +0100
Subject: [PATCH] qemu: Add virtio related options to vsock
Add virtio related options iommu, ats and packed as driver element attributes
to vsock devices. Ex:
<vsock model='virtio'>
<cid auto='no' address='3'/>
<driver iommu='on'/>
</vsock>
Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
(cherry picked from commit bd112c9e0f7523b90bf1362cf60deea7db05a32b)
Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=1941820
Note: since the virtio option packed is not yet available in the code
version it will also not be available with this backported patch.
Conflicts: docs/formatdomain.rst:
converted changes into docs/formatdomain.html.in
src/conf/domain_conf.c:
resolved conflicts by moving the code into the correct methods
src/conf/domain_validate.c:
does not exist downstream. moved code to src/conf/domain_conf.c
src/qemu/qemu_validate.c:
does not exist downstream. can be neglected
Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210323092546.405902-2-thuth@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
---
docs/formatdomain.html.in | 5 ++-
docs/schemas/domaincommon.rng | 5 +++
src/conf/domain_conf.c | 27 ++++++++++++++
src/conf/domain_conf.h | 1 +
src/qemu/qemu_command.c | 4 ++
.../vhost-vsock-ccw-iommu.s390x-latest.args | 37 +++++++++++++++++++
.../vhost-vsock-ccw-iommu.xml | 37 +++++++++++++++++++
tests/qemuxml2argvtest.c | 1 +
.../vhost-vsock-ccw-iommu.s390x-latest.xml | 1 +
tests/qemuxml2xmltest.c | 2 +
10 files changed, 119 insertions(+), 1 deletion(-)
create mode 100644 tests/qemuxml2argvdata/vhost-vsock-ccw-iommu.s390x-latest.args
create mode 100644 tests/qemuxml2argvdata/vhost-vsock-ccw-iommu.xml
create mode 120000 tests/qemuxml2xmloutdata/vhost-vsock-ccw-iommu.s390x-latest.xml
diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index 76799f5ffc..c4e4efcde2 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -9131,7 +9131,10 @@ qemu-kvm -net nic,model=? /dev/null
element specifies the CID assigned to the guest. If the attribute
<code>auto</code> is set to <code>yes</code>, libvirt
will assign a free CID automatically on domain startup.
- <span class="since">Since 4.4.0</span></p>
+ <span class="since">Since 4.4.0</span>
+ The optional <code>driver</code> element allows to specify virtio options, see
+ <a href="#elementsVirtio">Virtio-specific options</a> for more details.
+ <span class="since">Since 7.1.0</span></p>
<pre>
...
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index 9fda5f17e0..4a42cb9b40 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -4685,6 +4685,11 @@
<optional>
<ref name="alias"/>
</optional>
+ <optional>
+ <element name="driver">
+ <ref name="virtioOptions"/>
+ </element>
+ </optional>
</interleave>
</element>
</define>
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 60962ee7c1..4a4cff434b 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -2392,6 +2392,7 @@ virDomainVsockDefFree(virDomainVsockDefPtr vsock)
virObjectUnref(vsock->privateData);
virDomainDeviceInfoClear(&vsock->info);
+ VIR_FREE(vsock->virtio);
VIR_FREE(vsock);
}
@@ -6504,6 +6505,15 @@ virDomainMemoryDefValidate(const virDomainMemoryDef *mem)
}
+static bool
+virDomainVsockIsVirtioModel(const virDomainVsockDef *vsock)
+{
+ return (vsock->model == VIR_DOMAIN_VSOCK_MODEL_VIRTIO ||
+ vsock->model == VIR_DOMAIN_VSOCK_MODEL_VIRTIO_TRANSITIONAL ||
+ vsock->model == VIR_DOMAIN_VSOCK_MODEL_VIRTIO_NON_TRANSITIONAL);
+}
+
+
static int
virDomainVsockDefValidate(const virDomainVsockDef *vsock)
{
@@ -6513,6 +6523,10 @@ virDomainVsockDefValidate(const virDomainVsockDef *vsock)
return -1;
}
+ if (!virDomainVsockIsVirtioModel(vsock) &&
+ virDomainCheckVirtioOptions(vsock->virtio) < 0)
+ return -1;
+
return 0;
}
@@ -16721,6 +16735,11 @@ virDomainVsockDefParseXML(virDomainXMLOptionPtr xmlopt,
if (virDomainDeviceInfoParseXML(xmlopt, node, &vsock->info, flags) < 0)
return NULL;
+ if (virDomainVirtioOptionsParseXML(virXPathNode("./driver", ctxt),
+ &vsock->virtio) < 0)
+ return NULL;
+
+
return g_steal_pointer(&vsock);
}
@@ -23401,6 +23420,10 @@ virDomainVsockDefCheckABIStability(virDomainVsockDefPtr src,
return false;
}
+ if (src->virtio && dst->virtio &&
+ !virDomainVirtioOptionsCheckABIStability(src->virtio, dst->virtio))
+ return false;
+
if (!virDomainDeviceInfoCheckABIStability(&src->info, &dst->info))
return false;
@@ -28410,6 +28433,7 @@ virDomainVsockDefFormat(virBufferPtr buf,
g_auto(virBuffer) childBuf = VIR_BUFFER_INIT_CHILD(buf);
g_auto(virBuffer) attrBuf = VIR_BUFFER_INITIALIZER;
g_auto(virBuffer) cidAttrBuf = VIR_BUFFER_INITIALIZER;
+ g_auto(virBuffer) drvAttrBuf = VIR_BUFFER_INITIALIZER;
if (vsock->model) {
virBufferAsprintf(&attrBuf, " model='%s'",
@@ -28427,6 +28451,9 @@ virDomainVsockDefFormat(virBufferPtr buf,
if (virDomainDeviceInfoFormat(&childBuf, &vsock->info, 0) < 0)
return -1;
+ virDomainVirtioOptionsFormat(&drvAttrBuf, vsock->virtio);
+
+ virXMLFormatElement(&childBuf, "driver", &drvAttrBuf, NULL);
virXMLFormatElement(buf, "vsock", &attrBuf, &childBuf);
return 0;
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 118077edaa..3aed1fb22a 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -2389,6 +2389,7 @@ struct _virDomainVsockDef {
virTristateBool auto_cid;
virDomainDeviceInfo info;
+ virDomainVirtioOptionsPtr virtio;
};
struct _virDomainVirtioOptions {
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index ed5f60e82e..11e59a67d2 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -9799,6 +9799,10 @@ qemuBuildVsockDevStr(virDomainDefPtr def,
virBufferAsprintf(&buf, ",id=%s", vsock->info.alias);
virBufferAsprintf(&buf, ",guest-cid=%u", vsock->guest_cid);
virBufferAsprintf(&buf, ",vhostfd=%s%u", fdprefix, priv->vhostfd);
+
+ if (qemuBuildVirtioOptionsStr(&buf, vsock->virtio, qemuCaps) < 0)
+ return NULL;
+
if (qemuBuildDeviceAddressStr(&buf, def, &vsock->info, qemuCaps) < 0)
return NULL;
diff --git a/tests/qemuxml2argvdata/vhost-vsock-ccw-iommu.s390x-latest.args b/tests/qemuxml2argvdata/vhost-vsock-ccw-iommu.s390x-latest.args
new file mode 100644
index 0000000000..78eede78d3
--- /dev/null
+++ b/tests/qemuxml2argvdata/vhost-vsock-ccw-iommu.s390x-latest.args
@@ -0,0 +1,37 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/tmp/lib/domain--1-QEMUGuest1 \
+USER=test \
+LOGNAME=test \
+XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \
+XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \
+XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \
+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 \
+-cpu qemu \
+-m 214 \
+-overcommit mem-lock=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,iommu_platform=on,\
+devno=fe.0.0002 \
+-msg timestamp=on
diff --git a/tests/qemuxml2argvdata/vhost-vsock-ccw-iommu.xml b/tests/qemuxml2argvdata/vhost-vsock-ccw-iommu.xml
new file mode 100644
index 0000000000..dbfe082a6f
--- /dev/null
+++ b/tests/qemuxml2argvdata/vhost-vsock-ccw-iommu.xml
@@ -0,0 +1,37 @@
+<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>
+ <cpu mode='custom' match='exact' check='none'>
+ <model fallback='forbid'>qemu</model>
+ </cpu>
+ <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>
+ <controller type='pci' index='0' model='pci-root'/>
+ <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='0x0002'/>
+ <driver iommu='on'/>
+ </vsock>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index ff92af606d..66df797ef2 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -3054,6 +3054,7 @@ mymain(void)
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_CAPS_ARCH_LATEST("vhost-vsock-ccw-iommu", "s390x");
DO_TEST_CAPS_VER("launch-security-sev", "2.12.0");
diff --git a/tests/qemuxml2xmloutdata/vhost-vsock-ccw-iommu.s390x-latest.xml b/tests/qemuxml2xmloutdata/vhost-vsock-ccw-iommu.s390x-latest.xml
new file mode 120000
index 0000000000..78971a8ef9
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/vhost-vsock-ccw-iommu.s390x-latest.xml
@@ -0,0 +1 @@
+../qemuxml2argvdata/vhost-vsock-ccw-iommu.xml
\ No newline at end of file
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index c8218e423e..0e0097da1b 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -1429,6 +1429,8 @@ mymain(void)
QEMU_CAPS_CCW);
DO_TEST("vhost-vsock-ccw-auto", QEMU_CAPS_DEVICE_VHOST_VSOCK,
QEMU_CAPS_CCW);
+ DO_TEST_CAPS_ARCH_LATEST("vhost-vsock-ccw-iommu", "s390x");
+
DO_TEST_CAPS_LATEST("vhost-user-fs-fd-memory");
DO_TEST_CAPS_LATEST("vhost-user-fs-hugepages");
--
2.31.0