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This patch introduces a new PCI hostdev address type called 'unassigned'. This new type gives users the option to add PCI hostdevs to the domain XML in an 'unassigned' state, meaning that the device exists in the domain, is managed by Libvirt like any regular PCI hostdev, but the guest does not have access to it. This adds extra options for managing PCI device binding inside Libvirt, for example, making all the managed PCI hostdevs declared in the domain XML to be detached from the host and bind to the chosen driver and, at the same time, allowing just a subset of these devices to be usable by the guest. Next patch will use this new address type in the QEMU driver to avoid adding unassigned devices to the QEMU launch command line. Reviewed-by: Cole Robinson <crobinso@redhat.com> Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
43 lines
1.3 KiB
XML
43 lines
1.3 KiB
XML
<domain type='kvm'>
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<name>delete</name>
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<uuid>583a8e8e-f0ce-4f53-89ab-092862148b25</uuid>
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<memory unit='KiB'>262144</memory>
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<vcpu placement='static'>4</vcpu>
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<os>
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<type arch='x86_64' machine='pc'>hvm</type>
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</os>
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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'/>
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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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<driver name='vfio'/>
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<source>
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<address domain='0x0005' bus='0x90' slot='0x01' function='0x0'/>
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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='0x0005' bus='0x90' slot='0x01' function='0x1'/>
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</source>
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<address type='unassigned'/>
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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='0x0005' bus='0x90' slot='0x01' 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 name='vfio'/>
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<source>
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<address domain='0x0005' bus='0x90' slot='0x01' function='0x3'/>
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</source>
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</hostdev>
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</devices>
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</domain>
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