Re: [RFC] PPC: MPIC: necessary readback after EOI?

On Wed, Jan 07, 2015 at 03:40:10PM +0100, Benjamin Herrenschmidt wrote:

One way to work around the performance loss for you would be to add some
DT property to indicate to the guest that the read isn't necessary.

Or KVM could use a virtual interrupt controller better suited to its
needs.


Segher