On Fri, Sep 04, 2015 at 04:35:20PM +0100, Marc Zyngier wrote: > Hi Christoffer, > > On 04/09/15 15:24, Christoffer Dall wrote: > > These two patches fix two separate issues with the architected timer and > > the corresponding interrupt injection to VMs on KVM/ARM. > > > > The first patch fixes an issue introduced with the active timer state > > switching series recently merged for v4.3, which could cause a guest to > > loop without progress if another VCPU is run on the same physical CPU > > and preempts the original VCPU while the guest is running the ISR for > > the timer interrupt. > > > > The second patch resets the architected timer's control register to zero > > on system reset, ensuring that interrupts are not injected when a system > > resets. This fixes a long-standing issue with UEFI, where soft reset > > initiated from within UEFI prevented the system from booting again. > > Thanks for respinning these patches. I've queued them in our -next > queue. I'll send this to Paolo some time next week, once they get some > hammering. > Awesome, fyi I left these patches running in a loop with reboots and running hackbench on 2 simultaneous VMs with 4 vcpus each on X-gene for 100 iterations, and left the guest and host run cyclictest for ~20 minutes without issues. -Christoffer -- 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
