On 16.10.2011, at 22:26, David Gibson wrote: > In __cpu_ppc_store_decr(), we set up a regular timer used to trigger > decrementer interrupts. This is necessary to implement the decrementer > properly under TCG, but is unnecessary under KVM (true for both Book3S-PR > and Book3S-HV KVM variants), because the kernel handles generating and > delivering decrementer exceptions. > > Under kvm, in fact, the timer causes expensive and unnecessary exits from > kvm to qemu. This patch, therefore, disables setting the timer when kvm > is in use. > > Signed-off-by: Anton Blanchard <an...@au1.ibm.com> > Signed-off-by: David Gibson <da...@gibson.dropbear.id.au>
Thanks, applied to ppc-next. Alex
