On Tue, Sep 15, 2015 at 09:42:40AM -0400, Konrad Rzeszutek Wilk wrote: > Hey,
CC-ing Xen-devel which I forgot. > > We are running into issues where our guests immediately exhaust > the amount of PIRQs. Using the 'extra_guest_irqs' of course fixes > it but it would be nice to have this be dynamic. > > One idea I had been toying with was that when an device is inserted > into an domain we check how many MSI-X it could have and raise > the nr_pirqs by that. But that would entail some extra logic in > the libxl. And naturally an hypercall to modify the nr_pirqs. > > The other is to evaluate also based on MSI-X - but in the > hypervisor as it already has logic to do figure out MSI-X and such. > > Would appreciate feedback, thoughts, etc. > > Thanks! _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
