Il 11/07/2013 12:41, Christian Borntraeger ha scritto: > On 11/07/13 11:04, Gleb Natapov wrote: >> On Wed, Jul 10, 2013 at 02:59:55PM +0200, Dominik Dingel wrote: >>> This patch enables async page faults for s390 kvm guests. >>> It provides the userspace API to enable, disable or get the status of this >>> feature. Also it includes the diagnose code, called by the guest to enable >>> async page faults. >>> >>> The async page faults will use an already existing guest interface for this >>> purpose, as described in "CP Programming Services (SC24-6084)". >>> >>> Signed-off-by: Dominik Dingel <dingel@xxxxxxxxxxxxxxxxxx> >> Christian, looks good now? > > Looks good, but I just had a discussion with Dominik about several other cases > (guest driven reboot, qemu driven reboot, life migration). This patch should > allow all these cases (independent from this patch we need an ioctl to flush the > list of pending interrupts to do so, but reboot is currently broken in that > regard anyway - patch is currently being looked at) > > We are currently discussion if we should get rid of the APF_STATUS and let > the kernel wait for outstanding page faults before returning from KVM_RUN > or if we go with this patch and let userspace wait for completion. > > Will discuss this with Dominik, Conny and Alex. So lets defer that till next > week, ok? Let us know if we should wait for a v5. :) Paolo -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
