On Mon, 10 Jul 2023 17:55:53 +0000, Oliver Upton wrote:
> Xiang reports that VMs occasionally fail to boot on GICv4.1 systems when
> running a preemptible kernel, as it is possible that a vCPU is blocked
> without requesting a doorbell interrupt.
>
> The issue is that any preemption that occurs between vgic_v4_put() and
> schedule() on the block path will mark the vPE as nonresident and *not*
> request a doorbell irq.
>
> [...]
Applied to kvmarm/fixes, thanks!
[1/1] KVM: arm64: vgic-v4: Consistently request doorbell irq for blocking vCPU
https://git.kernel.org/kvmarm/kvmarm/c/d30ea1f31ff5
--
Best,
Oliver
