On Fri, Jun 22, 2018 at 10:22:05PM +0300, Michael S. Tsirkin wrote: > With this flag, kvm allows guest to control host CPU power state. This > increases latency for other processes using same host CPU in an > unpredictable way, but if decreases idle entry/exit times for the > running VCPU, so to use it QEMU needs a hint about whether host CPU is > overcommitted, hence the flag name. > > Follow-up patches will expose this capability to guest > (using mwait leaf). > > Based on a patch by Wanpeng Li <kernellwp@xxxxxxxxx> . > > Signed-off-by: Michael S. Tsirkin <mst@xxxxxxxxxx> Reviewed-by: Eduardo Habkost <ehabkost@xxxxxxxxxx> -- Eduardo
