Hi Julien,
On 2019/7/8 22:32, Julien Thierry wrote:
When using an NMI for the PMU interrupt, taking any lock migh cause a
^^^^
s/migh/might/
deadlock. The current PMU overflow handler in KVM takes takes locks when
^^^^^ ^^^^^
two "takes" ?
Thanks,
zenghui
trying to wake up a vcpu.
When overflow handler is called by an NMI, defer the vcpu waking in an
irq_work queue.
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