On Tue, Jun 25, 2013 at 06:40:09PM -0400, Laine Stump wrote: > Any device which belongs to an "IOMMU group" (used by vfio) will > have links to all devices of its group listed in > /sys/bus/pci/$device/iommu_group/devices; > /sys/bus/pci/$device/iommu_group is actually a link to > /sys/kernel/iommu_groups/$n, where $n is the group number (there > will be a corresponding device node at /dev/vfio/$n once the > devices are bound to the vfio-pci driver) > > The following functions are added: > > virPCIDeviceGetIOMMUGroupList > > Gets a virPCIDeviceList with one virPCIDeviceList for each device > in the same IOMMU group as the provided virPCIDevice (a copy of the > original device object is included in the list. > > virPCIDeviceAddressIOMMUGroupIterate > > Calls the function @actor once for each device in the group that > contains the given virPCIDeviceAddress. > > virPCIDeviceAddressGetIOMMUGroupAddresses > > Fills in a virPCIDeviceAddressPtr * with an array of > virPCIDeviceAddress, one for each device in the iommu group of the > provided virPCIDeviceAddress (including a copy of the original). > > virPCIDeviceAddressGetIOMMUGroupNum > > Returns the group number as an int (a valid group number will always > be 0 or greater). If there is no iommu_group link in the device's > directory (usually indicating that vfio isn't loaded), -2 will be > returned. On any real error, -1 will be returned. > --- > changes from v2: > > 1) rename functions for consistency > > 2) set errno=0 prior to each call to readdir, and check for non-zero > errno at the end. > > 3) remove some braces. > > Everything else in the series of 12 was ACKed, and all but this and > the patch that adds the <iommuGroup> element to the nodedev-dumpxml > output have been pushed. > > src/libvirt_private.syms | 4 + > src/util/virpci.c | 223 +++++++++++++++++++++++++++++++++++++++++++++++ > src/util/virpci.h | 15 +++- > 3 files changed, 239 insertions(+), 3 deletions(-) ACK Daniel -- |: http://berrange.com -o- http://www.flickr.com/photos/dberrange/ :| |: http://libvirt.org -o- http://virt-manager.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: http://entangle-photo.org -o- http://live.gnome.org/gtk-vnc :| -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list