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

Segher Boessenkool segher at kernel.crashing.org
Thu Jan 8 11:49:08 AEDT 2015

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


More information about the Linuxppc-dev mailing list