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Attaching a host PCI device to a qemu guest is done with a straightforward 'pci_add auto host host=XX:XX.X' command. Like with NIC and disk hotplug, we need to retain the guest PCI address assigned by qemu so that we can use it for hot-unplug. Identifying a device for detach is done using the host PCI address. Managed mode is handled by detaching/resetting the device before attaching it to the guest and re-attaching it after detaching it from the guest. * src/qemu_driver.c: add qemudDomainAttachHostPciDevice() and qemudDomainDetachHostPciDevice() * src/domain_conf.h: add somewhere to store the guest PCI address * src/domain_conf.c: handle formatting and parsing the guest PCI address
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>