commit 85a71ee9a0700f6c18862ef3b0011ed9dad99aca upstream.
It is possible that an LPI mapped in a different ITS gets unmapped while handling the MOVALL command. If that is the case, there is no state that can be migrated to the destination. Silently ignore it and continue migrating other LPIs.
Cc: stable@vger.kernel.org Fixes: ff9c114394aa ("KVM: arm/arm64: GICv4: Handle MOVALL applied to a vPE") Signed-off-by: Oliver Upton oliver.upton@linux.dev Link: https://lore.kernel.org/r/20240221092732.4126848-3-oliver.upton@linux.dev Signed-off-by: Marc Zyngier maz@kernel.org --- virt/kvm/arm/vgic/vgic-its.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c index 0589dfbc7685..f4ce08c0d0be 100644 --- a/virt/kvm/arm/vgic/vgic-its.c +++ b/virt/kvm/arm/vgic/vgic-its.c @@ -1376,6 +1376,8 @@ static int vgic_its_cmd_handle_movall(struct kvm *kvm, struct vgic_its *its,
for (i = 0; i < irq_count; i++) { irq = vgic_get_irq(kvm, NULL, intids[i]); + if (!irq) + continue;
update_affinity(irq, vcpu2);