On Tue, Jul 08, 2014 at 10:00:35AM +0200, Paolo Bonzini wrote: >Il 08/07/2014 08:56, Jan Kiszka ha scritto: >>I don't think arch.nmi_pending can flip asynchronously, only in the >>context of the VCPU thread - in contrast to pending IRQ states. > >Right, only nmi_queued is changed from other threads. /me should >really look at the code instead of going from memory. > >>>Jan, what do you think? Can you run Jailhouse through this patch? >> >>Jailhouse seems fine with it, and it resolves the lockup of nested KVM >>here as well. > >Thinking more about it, I think this is the right fix. Not setting >KVM_REQ_EVENT in some cases can be an optimization, but it's not >necessary. Definitely there are other cases in which KVM_REQ_EVENT >is set even though no event is pending---most notably during >emulation of invalid guest state. Anyway, Reviewed-by: Wanpeng Li <wanpeng.li@xxxxxxxxxxxxxxx> > >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
