Commit 363518f3 authored May 22, 2019 by Marc Zyngier

KVM: arm/arm64: vgic-its: Invalidate MSI-LPI translation cache on ITS disable



If an ITS gets disabled, we need to make sure that further interrupts
won't hit in the cache. For that, we invalidate the translation cache
when the ITS is disabled.

Tested-by: Andre Przywara <andre.przywara@arm.com>
Reviewed-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>

parent b4931afc

virt/kvm/arm/vgic/vgic-its.c

+2 −0

Original line number	Diff line number	Diff line
		@@ -1597,6 +1597,8 @@ static void vgic_mmio_write_its_ctlr(struct kvm kvm, struct vgic_its its,
		goto out;

		its->enabled = !!(val & GITS_CTLR_ENABLE);
		if (!its->enabled)
		vgic_its_invalidate_cache(kvm);

		/*
		* Try to process any pending commands. This function bails out early

Admin message