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8b93d78c83
This patch makes it possible to manually specify which VFIO variant driver to use for PCI hostdev device assignment, so that, e.g. you could force use of a VFIO "variant" driver, with e.g. <driver model='mlx5_vfio_pci'/> or alternately to force use of the generic vfio-pci driver with <driver model='vfio-pci'/> when libvirt would have normally (after applying a subsequent patch) found a "better match" for a device in the active kernel's modules.alias file. (The main potential use of this manual override would probably be to work around a bug in a new VFIO variant driver by temporarily not using that driver). Signed-off-by: Laine Stump <laine@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com>
53 lines
1.7 KiB
XML
53 lines
1.7 KiB
XML
<domain type='qemu'>
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<name>QEMUGuest2</name>
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<uuid>c7a5fdbd-edaf-9466-926a-d65c16db1809</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'>1</vcpu>
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<os>
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<type arch='x86_64' machine='pc'>hvm</type>
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<boot dev='hd'/>
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</os>
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<clock offset='utc'/>
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<on_poweroff>destroy</on_poweroff>
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<on_reboot>restart</on_reboot>
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<on_crash>destroy</on_crash>
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<devices>
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<emulator>/usr/bin/qemu-system-x86_64</emulator>
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<disk type='block' device='disk'>
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<source dev='/dev/HostVG/QEMUGuest2'/>
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<target dev='hda' bus='ide'/>
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<address type='drive' controller='0' bus='0' target='0' unit='0'/>
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</disk>
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<controller type='usb' index='0'/>
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<controller type='ide' index='0'/>
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<controller type='pci' index='0' model='pci-root'/>
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<input type='mouse' bus='ps2'/>
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<input type='keyboard' bus='ps2'/>
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<hostdev mode='subsystem' type='pci' managed='yes'>
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<source>
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<address domain='0x0000' bus='0x06' slot='0x12' function='0x1'/>
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</source>
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</hostdev>
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<hostdev mode='subsystem' type='pci' managed='yes'>
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<driver name='vfio'/>
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<source>
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<address domain='0x0000' bus='0x06' slot='0x12' function='0x2'/>
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</source>
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</hostdev>
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<hostdev mode='subsystem' type='pci' managed='yes'>
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<driver model='vfio-pci-igb'/>
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<source>
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<address domain='0x0000' bus='0x06' slot='0x12' function='0x3'/>
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</source>
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</hostdev>
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<hostdev mode='subsystem' type='pci' managed='yes'>
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<driver name='vfio' model='vfio-pci-igb'/>
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<source>
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<address domain='0x0000' bus='0x06' slot='0x12' function='0x4'/>
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</source>
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</hostdev>
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<memballoon model='virtio'/>
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</devices>
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</domain>
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