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https://gitlab.com/libvirt/libvirt.git
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52f3d0a4d2
This is a standard PCI root bus (not a bridge) that can be added to a 440fx-based domain. Although it uses a PCI slot, this is *not* how it is connected into the PCI bus hierarchy, but is only used for control. Each pci-expander-bus provides 32 slots (0-31) that can accept hotplug of standard PCI devices. The usefulness of pci-expander-bus relative to a pci-bridge is that the NUMA node of the bus can be specified with the <node> subelement of <target>. This gives guest-side visibility to the NUMA node of attached devices (presuming that management apps only assign a device to a bus that has a NUMA node number matching the node number of the device on the host). Each pci-expander-bus also has a "busNr" attribute. The expander-bus itself will take the busNr specified, and all buses that are connected to this bus (including the pci-bridge that is automatically added to any expander bus of model "pxb" (see the next commit)) will use busNr+1, busNr+2, etc, and the pci-root (or the expander-bus with next lower busNr) will use bus numbers lower than busNr.
168 lines
4.9 KiB
XML
168 lines
4.9 KiB
XML
<domain type='qemu'>
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<name>expander-test</name>
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<uuid>3ec6cbe1-b5a2-4515-b800-31a61855df41</uuid>
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<memory unit='KiB'>219100</memory>
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<currentMemory unit='KiB'>219100</currentMemory>
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<vcpu placement='static'>16</vcpu>
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<os>
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<type arch='x86_64' machine='pc-i440fx-2.5'>hvm</type>
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</os>
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<cpu>
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<topology sockets='2' cores='4' threads='2'/>
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<numa>
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<cell cpus='0-7' memory='109550' unit='KiB'/>
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<cell cpus='8-15' memory='109550' unit='KiB'/>
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</numa>
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</cpu>
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<devices>
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<emulator>/usr/bin/qemu-system-x86_64</emulator>
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<controller type='usb' index='0' model='none'/>
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<controller type='ide' index='0'>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x01' function='0x1'/>
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</controller>
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<controller type='pci' index='0' model='pci-root'/>
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<controller type='pci' index='1' model='pci-expander-bus'>
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<model name='pxb'/>
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<target busNr='254'>
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<node>1</node>
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</target>
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</controller>
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<controller type='pci' index='2' model='pci-expander-bus'>
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<model name='pxb'/>
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</controller>
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<interface type='user'>
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<mac address='52:54:00:f1:95:51'/>
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<model type='rtl8139'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:5c:c6:1a'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:39:97:ac'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:45:28:cb'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:ee:b9:a8'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:a9:f7:17'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:df:2b:f3'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:78:94:b4'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:6b:9b:06'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:17:df:bc'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:3b:d0:51'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:8d:2d:17'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:a7:66:af'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:54:ab:d7'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:1f:99:90'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:c8:43:87'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:df:22:b2'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:d2:9a:47'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:86:05:e2'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:8c:1c:c2'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:48:58:92'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:99:e5:bf'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:b1:8c:25'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:60:e0:d0'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:37:00:6a'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:c7:c8:ad'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:4e:a7:cf'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:00:79:69'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:47:00:6f'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:2a:8c:8b'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:ec:d5:e3'/>
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<model type='e1000'/>
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</interface>
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<interface type='user'>
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<mac address='52:54:00:7e:6e:c8'/>
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<model type='e1000'/>
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</interface>
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<input type='mouse' bus='ps2'/>
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<input type='keyboard' bus='ps2'/>
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<memballoon model='virtio'>
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<address type='pci' domain='0x0000' bus='0x00' slot='0x06' function='0x0'/>
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</memballoon>
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</devices>
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</domain>
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