On Wed, 17 Jul 2019 09:17:10 +0100 Julien Thierry <[email protected]> wrote:
> When using an NMI for the PMU interrupt, taking any lock might cause a > deadlock. The current PMU overflow handler in KVM takes locks when > trying to wake up a vcpu. > > When overflow handler is called by an NMI, defer the vcpu waking in an > irq_work queue. > > Signed-off-by: Julien Thierry <[email protected]> > Cc: Christoffer Dall <[email protected]> > Cc: Marc Zyngier <[email protected]> > Cc: Will Deacon <[email protected]> > Cc: Mark Rutland <[email protected]> > Cc: James Morse <[email protected]> > Cc: Suzuki K Pouloze <[email protected]> > Cc: [email protected] Acked-by: Marc Zyngier <[email protected]> M. -- Without deviation from the norm, progress is not possible. _______________________________________________ kvmarm mailing list [email protected] https://lists.cs.columbia.edu/mailman/listinfo/kvmarm
