> From: Feng Wu > Sent: Thursday, December 03, 2015 4:36 PM > > When guest changes its interrupt configuration (such as, vector, etc.) > for direct-assigned devices, we need to update the associated IRTE > with the new guest vector, so external interrupts from the assigned > devices can be injected to guests without VM-Exit. > > For lowest-priority interrupts, we use vector-hashing mechamisn to find > the destination vCPU. This follows the hardware behavior, since modern > Intel CPUs use vector hashing to handle the lowest-priority interrupt. > > For multicast/broadcast vCPU, we cannot handle it via interrupt posting, > still use interrupt remapping. > > CC: Jan Beulich <jbeul...@suse.com> > Signed-off-by: Feng Wu <feng...@intel.com> > Acked-by: Jan Beulich <jbeul...@suse.com>
Reviewed-by: Kevin Tian <kevin.t...@intel.com> _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
