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virsh: Mention --driver in man page for nodedev-detach
https://bugzilla.redhat.com/show_bug.cgi?id=982987 Commit d923f6c8 introduced the --driver option but didn't document it in the man page. The docs are borrowed from the public API documentation.
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@ -2113,7 +2113,7 @@ name or wwn pair in "wwnn,wwpn" format (only works for HBA). Note
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that this makes libvirt quit managing a host device, and may even make
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that device unusable by the rest of the physical host until a reboot.
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=item B<nodedev-detach> I<nodedev>
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=item B<nodedev-detach> I<nodedev> [I<--driver backend_driver>]
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Detach I<nodedev> from the host, so that it can safely be used by
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guests via <hostdev> passthrough. This is reversed with
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@ -2121,6 +2121,12 @@ B<nodedev-reattach>, and is done automatically for managed devices.
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For compatibility purposes, this command can also be spelled
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B<nodedev-dettach>.
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Different backend drivers expect the device to be bound to different
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dummy devices. For example, QEMU's "kvm" backend driver (the default)
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expects the device to be bound to pci-stub, but its "vfio" backend
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driver expects the device to be bound to vfio-pci. The I<--driver>
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parameter can be used to specify the desired backend driver.
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=item B<nodedev-dumpxml> I<device>
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Dump a <device> XML representation for the given node device, including
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