KVM: arm/arm64: vgic-irqfd: Implement kvm_arch_set_irq_inatomic

Now that we have a cache of MSI->LPI translations, it is pretty
easy to implement kvm_arch_set_irq_inatomic (this cache can be
parsed without sleeping).

Hopefully, this will improve some LPI-heavy workloads.

Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
1 file changed