On 18/07/13 15:57, Paolo Bonzini wrote: > 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. :) Yes, there will be a v5 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>