When faced with a guest device that requires a PCI address but doesn't
have one manually assigned in the config, libvirt has always insisted
(well... *tried* to insist) on auto-assigning an address that is on a
PCI controller that supports hotplug. One big problem with this is
that it prevents automatic use of a Q35 (or aarch64/virt) machine's
pcie-root (since the PCIe root complex doesn't support hotplug).
In order to promote simpler domain configs (more devices on pcie-root
rather than on a pci-bridge), this patch adds a new sub-element to all
guest devices that have a PCI address and support hotplug:
<hotplug require='no'/>
For devices that have hotplug require='no', we turn off the
VIR_PCI_CONNECT_HOGPLUGGABLE bit in the devFlags when searching for an
available PCI address. Since pcie-root now allows standard PCI
devices, this results in those devices being placed on pcie-root
rather than pci-bridge.
NB: According to the code in qemuDomainAssignDevicePCISlots()
and qemuDomainAttachDeviceLive(), the following device types are the
only ones that use a PCI address *and* support hotplug:
<interface>
<hostdev>
<rng>
<serial>
<disk> (only virtio)
<controller> (hotplug only for SCSI controllers)
These devices use a PCI address, but don't support hotplug, so the RNG
doesn't allow them to have a <hotplug> element:
<filesystem>
<sound>
<balloon>
<watchdog>
<video>
<shmem>
<input>
---
docs/formatdomain.html.in | 37 ++++++++
docs/schemas/domaincommon.rng | 17 ++++
src/conf/device_conf.h | 15 +++
src/conf/domain_addr.c | 7 ++
src/conf/domain_conf.c | 28 ++++++
.../qemuxml2argv-q35-hotpluggable.args | 50 ++++++++++
.../qemuxml2argv-q35-hotpluggable.xml | 62 +++++++++++++
tests/qemuxml2argvtest.c | 8 ++
.../qemuxml2xmlout-q35-hotpluggable.xml | 103 +++++++++++++++++++++
tests/qemuxml2xmltest.c | 5 +
10 files changed, 332 insertions(+)
create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-q35-hotpluggable.args
create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-q35-hotpluggable.xml
create mode 100644 tests/qemuxml2xmloutdata/qemuxml2xmlout-q35-hotpluggable.xml
diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in
index eddb8dd..d5292f1 100644
--- a/docs/formatdomain.html.in
+++ b/docs/formatdomain.html.in
@@ -3038,6 +3038,43 @@
assign a PCI address for the device rather than some other
type of address that may also be appropriate for that same
device (e.g. virtio-mmio).
+ <p>
+ If a device that needs a PCI address doesn't have one
+ explicitly provided in the XML configuration, libvirt will
+ automatically assign an appropriate address before saving
+ the configuration. During this automatic assignment, if a
+ device supports being hotplugged/unplugged (attaching and
+ detaching the device while the virtual machine is running)
+ libirt's default behavior is to assign that device to a slot
+ on a PCI controller that also supports having its devices
+ hotplugged/unplugged. <i>(In the qemu driver as of libvirt
+ 2.2.0, these devices can be hotplugged: <interface>,
+ <hostdev>, <rng>, <disk> (virtio-only),
+ <controller> (SCSI controllers only), and
+ <serial> (PCI serial only). Likewise, the following
+ PCI controller models support having their connected devices
+ hotplugged: pci-root, pci-bridge, pci-expander-bus,
+ pcie-root-bus, and pcie-switch-downstream-port.)</i> To allow
+ auto-assigning hotpluggable devices to PCI controllers that
+ don't support hotplug (for example, to assign the device to
+ pcie-root), those devices that support hotplug can have an
+ optional
+ <code><hotplug></code> element with a single
+ attribute <code>require</code> that can be used to inform
+ libvirt that this particular device <b>will not</b> require
+ hotplugging; libvirt will then look for open slots in all
+ appropriate controllers regardless of whether or not they
+ support hotplug.
+ </p>
+ <pre>
+ ...
+ <interface type='network'>
+ <source network='default'/>
+ <mac address='52:54:00:5d:c7:9e'/>
+ <hotplug require='no'/>
+ </interface>
+ ...</pre>
+
</dd>
<dt><code>drive</code></dt>
<dd>Drive addresses have the following additional
diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng
index 052f28c..e45bec1 100644
--- a/docs/schemas/domaincommon.rng
+++ b/docs/schemas/domaincommon.rng
@@ -1171,6 +1171,7 @@
<optional>
<ref name="alias"/>
</optional>
+ <ref name="hotplug"/>
<optional>
<ref name="address"/>
</optional>
@@ -1745,6 +1746,7 @@
<optional>
<ref name="alias"/>
</optional>
+ <ref name="hotplug"/>
<optional>
<ref name="address"/>
</optional>
@@ -2619,6 +2621,7 @@
<optional>
<ref name="alias"/>
</optional>
+ <ref name="hotplug"/>
<optional>
<ref name="address"/>
</optional>
@@ -3274,6 +3277,7 @@
<optional>
<ref name="alias"/>
</optional>
+ <ref name="hotplug"/>
<optional>
<ref name="address"/>
</optional>
@@ -3877,6 +3881,7 @@
<optional>
<ref name="rom"/>
</optional>
+ <ref name="hotplug"/>
<optional>
<ref name="address"/>
</optional>
@@ -4717,6 +4722,17 @@
</element>
</define>
+ <define name="hotplug">
+ <optional>
+ <element name="hotplug">
+ <attribute name="require">
+ <ref name="virYesNo"/>
+ </attribute>
+ <empty/>
+ </element>
+ </optional>
+ </define>
+
<define name="memorydev">
<element name="memory">
<attribute name="model">
@@ -4786,6 +4802,7 @@
<optional>
<ref name="alias"/>
</optional>
+ <ref name="hotplug"/>
<optional>
<ref name="address"/>
</optional>
diff --git a/src/conf/device_conf.h b/src/conf/device_conf.h
index 8443de6..236bc96 100644
--- a/src/conf/device_conf.h
+++ b/src/conf/device_conf.h
@@ -142,6 +142,21 @@ typedef struct _virDomainDeviceInfo {
/* bootIndex is only used for disk, network interface, hostdev
* and redirdev devices */
unsigned int bootIndex;
+ /* hotpluggable values:
+
+ * "no" - there is definitely no need for this device to be in a
+ * slot that supports hotplug.
+ *
+ * "yes" - assume hotplugging is required and refuse to put in any
+ * slot that doesn't support hotplug. (if the device
+ * itself doesn't support hotplug, that is an error)
+ *
+ * unspecified - the device can *manually* be placed in a
+ * non-hotpluggable slot, but that won't be automatically
+ * done (unless the device itself doesn't support
+ * hotplug).
+ */
+ int hotpluggable; /* virTristateBool */
} virDomainDeviceInfo, *virDomainDeviceInfoPtr;
diff --git a/src/conf/domain_addr.c b/src/conf/domain_addr.c
index 5533b11..8f2a78f 100644
--- a/src/conf/domain_addr.c
+++ b/src/conf/domain_addr.c
@@ -709,6 +709,13 @@ virDomainPCIAddressReserveNextSlot(virDomainPCIAddressSetPtr addrs,
virDomainPCIConnectFlags flags)
{
virPCIDeviceAddress addr;
+
+ /* if config says to no require hotplug, then don't check for
+ * it when looking for an open address.
+ */
+ if (dev->hotpluggable == VIR_TRISTATE_BOOL_NO)
+ flags &= ~VIR_PCI_CONNECT_HOTPLUGGABLE;
+
if (virDomainPCIAddressGetNextSlot(addrs, &addr, flags) < 0)
return -1;
diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c
index 82876f3..8ebbca9 100644
--- a/src/conf/domain_conf.c
+++ b/src/conf/domain_conf.c
@@ -4765,6 +4765,18 @@ virDomainDeviceInfoFormat(virBufferPtr buf,
virBufferAddLit(buf, "/>\n");
}
+ if (info->hotpluggable) {
+ const char *require = virTristateBoolTypeToString(info->hotpluggable);
+
+ if (!require) {
+ virReportError(VIR_ERR_INTERNAL_ERROR,
+ _("unexpected hotplug require value %d"),
+ info->hotpluggable);
+ return -1;
+ }
+ virBufferAsprintf(buf, "<hotplug require='%s'/>\n", require);
+ }
+
if (info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_NONE ||
info->type == VIR_DOMAIN_DEVICE_ADDRESS_TYPE_VIRTIO_S390)
return 0;
@@ -5277,6 +5289,7 @@ virDomainDeviceInfoParseXML(xmlNodePtr node,
xmlNodePtr alias = NULL;
xmlNodePtr boot = NULL;
xmlNodePtr rom = NULL;
+ xmlNodePtr hotplug = NULL;
char *type = NULL;
int ret = -1;
@@ -5303,6 +5316,9 @@ virDomainDeviceInfoParseXML(xmlNodePtr node,
(flags & VIR_DOMAIN_DEF_PARSE_ALLOW_ROM) &&
xmlStrEqual(cur->name, BAD_CAST "rom")) {
rom = cur;
+ } else if (hotplug == NULL &&
+ xmlStrEqual(cur->name, BAD_CAST "hotplug")) {
+ hotplug = cur;
}
}
cur = cur->next;
@@ -5335,6 +5351,18 @@ virDomainDeviceInfoParseXML(xmlNodePtr node,
info->romfile = virXMLPropString(rom, "file");
}
+ if (hotplug) {
+ char *require = virXMLPropString(hotplug, "require");
+ if (require &&
+ ((info->hotpluggable = virTristateBoolTypeFromString(require)) <= 0)) {
+ virReportError(VIR_ERR_CONFIG_UNSUPPORTED,
+ _("unknown hotplug require value '%s'"), require);
+ VIR_FREE(require);
+ goto cleanup;
+ }
+ VIR_FREE(require);
+ }
+
if (!address)
return 0;
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-q35-hotpluggable.args b/tests/qemuxml2argvdata/qemuxml2argv-q35-hotpluggable.args
new file mode 100644
index 0000000..0020bfe
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-q35-hotpluggable.args
@@ -0,0 +1,50 @@
+LC_ALL=C \
+PATH=/bin \
+HOME=/home/test \
+USER=test \
+LOGNAME=test \
+QEMU_AUDIO_DRV=none \
+/usr/libexec/qemu-kvm \
+-name q35-test \
+-S \
+-M q35 \
+-m 2048 \
+-smp 2,sockets=2,cores=1,threads=1 \
+-uuid 11dbdcdd-4c3b-482b-8903-9bdb8c0a2774 \
+-nographic \
+-nodefaults \
+-monitor unix:/tmp/lib/domain--1-q35-test/monitor.sock,server,nowait \
+-no-acpi \
+-boot c \
+-device i82801b11-bridge,id=pci.1,bus=pcie.0,addr=0x1e \
+-device pci-bridge,chassis_nr=2,id=pci.2,bus=pci.1,addr=0x0 \
+-device ich9-usb-ehci1,id=usb,bus=pcie.0,addr=0x1d.0x7 \
+-device ich9-usb-uhci1,masterbus=usb.0,firstport=0,bus=pcie.0,multifunction=on,\
+addr=0x1d \
+-device ich9-usb-uhci2,masterbus=usb.0,firstport=2,bus=pcie.0,addr=0x1d.0x1 \
+-device ich9-usb-uhci3,masterbus=usb.0,firstport=4,bus=pcie.0,addr=0x1d.0x2 \
+-drive file=/dev/HostVG/QEMUGuest1,format=raw,if=none,id=drive-sata0-0-0 \
+-device ide-drive,bus=ide.0,drive=drive-sata0-0-0,id=sata0-0-0 \
+-drive file=/dev/HostVG/QEMUGuest2,format=raw,if=none,id=drive-virtio-disk1 \
+-device virtio-blk-pci,bus=pci.2,addr=0x3,drive=drive-virtio-disk1,\
+id=virtio-disk1 \
+-drive file=/dev/HostVG/QEMUGuest2,format=raw,if=none,id=drive-virtio-disk2 \
+-device virtio-blk-pci,bus=pcie.0,addr=0x4,drive=drive-virtio-disk2,\
+id=virtio-disk2 \
+-device rtl8139,vlan=0,id=net0,mac=00:11:22:33:44:55,bus=pci.2,addr=0x1 \
+-net user,vlan=0,name=hostnet0 \
+-device rtl8139,vlan=1,id=net1,mac=00:11:22:33:44:55,bus=pcie.0,addr=0x2 \
+-net user,vlan=1,name=hostnet1 \
+-device virtio-net-pci,vlan=2,id=net2,mac=00:11:22:33:44:55,bus=pci.2,addr=0x2 \
+-net user,vlan=2,name=hostnet2 \
+-device virtio-net-pci,vlan=3,id=net3,mac=00:11:22:33:44:55,bus=pcie.0,\
+addr=0x3 \
+-net user,vlan=3,name=hostnet3 \
+-vga qxl \
+-global qxl-vga.ram_size=67108864 \
+-global qxl-vga.vram_size=33554432 \
+-device virtio-balloon-pci,id=balloon0,bus=pci.2,addr=0x4 \
+-object rng-random,id=objrng0,filename=/dev/random \
+-device virtio-rng-pci,rng=objrng0,id=rng0,bus=pcie.0,addr=0x5 \
+-object rng-random,id=objrng1,filename=/dev/random \
+-device virtio-rng-pci,rng=objrng1,id=rng1,bus=pci.2,addr=0x5
diff --git a/tests/qemuxml2argvdata/qemuxml2argv-q35-hotpluggable.xml b/tests/qemuxml2argvdata/qemuxml2argv-q35-hotpluggable.xml
new file mode 100644
index 0000000..5c826ba
--- /dev/null
+++ b/tests/qemuxml2argvdata/qemuxml2argv-q35-hotpluggable.xml
@@ -0,0 +1,62 @@
+<domain type='qemu'>
+ <name>q35-test</name>
+ <uuid>11dbdcdd-4c3b-482b-8903-9bdb8c0a2774</uuid>
+ <memory unit='KiB'>2097152</memory>
+ <currentMemory unit='KiB'>2097152</currentMemory>
+ <vcpu placement='static' cpuset='0-1'>2</vcpu>
+ <os>
+ <type arch='x86_64' machine='q35'>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/libexec/qemu-kvm</emulator>
+ <disk type='block' device='disk'>
+ <source dev='/dev/HostVG/QEMUGuest1'/>
+ <target dev='sda' bus='sata'/>
+ <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+ </disk>
+ <disk type='block' device='disk'>
+ <source dev='/dev/HostVG/QEMUGuest2'/>
+ <target dev='vdb' bus='virtio'/>
+ </disk>
+ <disk type='block' device='disk'>
+ <source dev='/dev/HostVG/QEMUGuest2'/>
+ <target dev='vdc' bus='virtio'/>
+ <hotplug require='no'/>
+ </disk>
+ <video>
+ <model type='qxl' ram='65536' vram='32768' vgamem='8192' heads='1'/>
+ </video>
+ <interface type='user'>
+ <mac address='00:11:22:33:44:55'/>
+ <model type='rtl8139'/>
+ </interface>
+ <interface type='user'>
+ <mac address='00:11:22:33:44:55'/>
+ <model type='rtl8139'/>
+ <hotplug require='no'/>
+ </interface>
+ <interface type='user'>
+ <mac address='00:11:22:33:44:55'/>
+ <model type='virtio'/>
+ </interface>
+ <interface type='user'>
+ <mac address='00:11:22:33:44:55'/>
+ <model type='virtio'/>
+ <hotplug require='no'/>
+ </interface>
+ <rng model='virtio'>
+ <hotplug require='no'/>
+ <backend model='random'>/dev/random</backend>
+ </rng>
+ <rng model='virtio'>
+ <hotplug require='yes'/>
+ <backend model='random'>/dev/random</backend>
+ </rng>
+ <memballoon model='virtio'/>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c
index 2de4f0a..2be634c 100644
--- a/tests/qemuxml2argvtest.c
+++ b/tests/qemuxml2argvtest.c
@@ -1677,6 +1677,14 @@ mymain(void)
QEMU_CAPS_PCI_MULTIFUNCTION, QEMU_CAPS_ICH9_USB_EHCI1,
QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
QEMU_CAPS_VGA_QXL, QEMU_CAPS_DEVICE_QXL);
+ DO_TEST("q35-hotpluggable",
+ QEMU_CAPS_DEVICE_PCI_BRIDGE,
+ QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE,
+ QEMU_CAPS_ICH9_AHCI,
+ QEMU_CAPS_PCI_MULTIFUNCTION, QEMU_CAPS_ICH9_USB_EHCI1,
+ QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
+ QEMU_CAPS_VGA_QXL, QEMU_CAPS_DEVICE_QXL,
+ QEMU_CAPS_DEVICE_VIRTIO_RNG, QEMU_CAPS_OBJECT_RNG_RANDOM);
DO_TEST("pcie-root-port",
QEMU_CAPS_DEVICE_PCI_BRIDGE,
QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE,
diff --git a/tests/qemuxml2xmloutdata/qemuxml2xmlout-q35-hotpluggable.xml b/tests/qemuxml2xmloutdata/qemuxml2xmlout-q35-hotpluggable.xml
new file mode 100644
index 0000000..e771125
--- /dev/null
+++ b/tests/qemuxml2xmloutdata/qemuxml2xmlout-q35-hotpluggable.xml
@@ -0,0 +1,103 @@
+<domain type='qemu'>
+ <name>q35-test</name>
+ <uuid>11dbdcdd-4c3b-482b-8903-9bdb8c0a2774</uuid>
+ <memory unit='KiB'>2097152</memory>
+ <currentMemory unit='KiB'>2097152</currentMemory>
+ <vcpu placement='static' cpuset='0-1'>2</vcpu>
+ <os>
+ <type arch='x86_64' machine='q35'>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/libexec/qemu-kvm</emulator>
+ <disk type='block' device='disk'>
+ <source dev='/dev/HostVG/QEMUGuest1'/>
+ <target dev='sda' bus='sata'/>
+ <address type='drive' controller='0' bus='0' target='0' unit='0'/>
+ </disk>
+ <disk type='block' device='disk'>
+ <source dev='/dev/HostVG/QEMUGuest2'/>
+ <target dev='vdb' bus='virtio'/>
+ <address type='pci' domain='0x0000' bus='0x02' slot='0x03' function='0x0'/>
+ </disk>
+ <disk type='block' device='disk'>
+ <source dev='/dev/HostVG/QEMUGuest2'/>
+ <target dev='vdc' bus='virtio'/>
+ <hotplug require='no'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x04' function='0x0'/>
+ </disk>
+ <controller type='usb' index='0' model='ich9-ehci1'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x7'/>
+ </controller>
+ <controller type='usb' index='0' model='ich9-uhci1'>
+ <master startport='0'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x0' multifunction='on'/>
+ </controller>
+ <controller type='usb' index='0' model='ich9-uhci2'>
+ <master startport='2'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x1'/>
+ </controller>
+ <controller type='usb' index='0' model='ich9-uhci3'>
+ <master startport='4'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x1d' function='0x2'/>
+ </controller>
+ <controller type='sata' index='0'>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x1f' function='0x2'/>
+ </controller>
+ <controller type='pci' index='0' model='pcie-root'/>
+ <controller type='pci' index='1' model='dmi-to-pci-bridge'>
+ <model name='i82801b11-bridge'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x1e' function='0x0'/>
+ </controller>
+ <controller type='pci' index='2' model='pci-bridge'>
+ <model name='pci-bridge'/>
+ <target chassisNr='2'/>
+ <address type='pci' domain='0x0000' bus='0x01' slot='0x00' function='0x0'/>
+ </controller>
+ <interface type='user'>
+ <mac address='00:11:22:33:44:55'/>
+ <model type='rtl8139'/>
+ <address type='pci' domain='0x0000' bus='0x02' slot='0x01' function='0x0'/>
+ </interface>
+ <interface type='user'>
+ <mac address='00:11:22:33:44:55'/>
+ <model type='rtl8139'/>
+ <hotplug require='no'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
+ </interface>
+ <interface type='user'>
+ <mac address='00:11:22:33:44:55'/>
+ <model type='virtio'/>
+ <address type='pci' domain='0x0000' bus='0x02' slot='0x02' function='0x0'/>
+ </interface>
+ <interface type='user'>
+ <mac address='00:11:22:33:44:55'/>
+ <model type='virtio'/>
+ <hotplug require='no'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x03' function='0x0'/>
+ </interface>
+ <input type='mouse' bus='ps2'/>
+ <input type='keyboard' bus='ps2'/>
+ <video>
+ <model type='qxl' ram='65536' vram='32768' vgamem='8192' heads='1' primary='yes'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x0'/>
+ </video>
+ <memballoon model='virtio'>
+ <address type='pci' domain='0x0000' bus='0x02' slot='0x04' function='0x0'/>
+ </memballoon>
+ <rng model='virtio'>
+ <backend model='random'>/dev/random</backend>
+ <hotplug require='no'/>
+ <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
+ </rng>
+ <rng model='virtio'>
+ <backend model='random'>/dev/random</backend>
+ <hotplug require='yes'/>
+ <address type='pci' domain='0x0000' bus='0x02' slot='0x05' function='0x0'/>
+ </rng>
+ </devices>
+</domain>
diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c
index 7601a5f..2d8145b 100644
--- a/tests/qemuxml2xmltest.c
+++ b/tests/qemuxml2xmltest.c
@@ -691,6 +691,11 @@ mymain(void)
QEMU_CAPS_ICH9_AHCI, QEMU_CAPS_PCI_MULTIFUNCTION,
QEMU_CAPS_ICH9_USB_EHCI1, QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
QEMU_CAPS_VGA_QXL, QEMU_CAPS_DEVICE_QXL);
+ DO_TEST("q35-hotpluggable",
+ QEMU_CAPS_DEVICE_PCI_BRIDGE, QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE,
+ QEMU_CAPS_ICH9_AHCI, QEMU_CAPS_PCI_MULTIFUNCTION,
+ QEMU_CAPS_ICH9_USB_EHCI1, QEMU_CAPS_DEVICE_VIDEO_PRIMARY,
+ QEMU_CAPS_VGA_QXL, QEMU_CAPS_DEVICE_QXL);
DO_TEST("pcie-root",
QEMU_CAPS_DEVICE_PCI_BRIDGE, QEMU_CAPS_DEVICE_DMI_TO_PCI_BRIDGE,
--
2.7.4
--
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