Re: [Qemu-devel] [PATCH] pcihp: reduce number of device check events

2014-01-27 Thread Michael S. Tsirkin
On Mon, Jan 27, 2014 at 01:48:44PM +0100, Igor Mammedov wrote: > On Sun, 26 Jan 2014 12:37:09 +0200 > "Michael S. Tsirkin" wrote: > > > PIIX created a made-up value for the UP register since it was read by > > guest 32 times for each interrupt. > > There's no reason to do this for the new PCIHP:

Re: [Qemu-devel] [PATCH] pcihp: reduce number of device check events

2014-01-27 Thread Igor Mammedov
On Sun, 26 Jan 2014 12:37:09 +0200 "Michael S. Tsirkin" wrote: > PIIX created a made-up value for the UP register since it was read by > guest 32 times for each interrupt. > There's no reason to do this for the new PCIHP: register is only read > once for each interrupt, so clean up code by making