This is a note to let you know that I've just added the patch titled
KVM: arm64: vgic-its: Test for valid IRQ in MOVALL handler
to the 4.19-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
kvm-arm64-vgic-its-test-for-valid-irq-in-movall-handler.patch
and it can be found in the queue-4.19 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 85a71ee9a0700f6c18862ef3b0011ed9dad99aca Mon Sep 17 00:00:00 2001
From: Oliver Upton <oliver.upton@xxxxxxxxx>
Date: Wed, 21 Feb 2024 09:27:32 +0000
Subject: KVM: arm64: vgic-its: Test for valid IRQ in MOVALL handler
From: Oliver Upton <oliver.upton@xxxxxxxxx>
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@xxxxxxxxxxxxxxx
Fixes: ff9c114394aa ("KVM: arm/arm64: GICv4: Handle MOVALL applied to a vPE")
Signed-off-by: Oliver Upton <oliver.upton@xxxxxxxxx>
Link: https://lore.kernel.org/r/20240221092732.4126848-3-oliver.upton@xxxxxxxxx
Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
virt/kvm/arm/vgic/vgic-its.c | 2 ++
1 file changed, 2 insertions(+)
--- a/virt/kvm/arm/vgic/vgic-its.c
+++ b/virt/kvm/arm/vgic/vgic-its.c
@@ -1232,6 +1232,8 @@ static int vgic_its_cmd_handle_movall(st
for (i = 0; i < irq_count; i++) {
irq = vgic_get_irq(kvm, NULL, intids[i]);
+ if (!irq)
+ continue;
update_affinity(irq, vcpu2);
Patches currently in stable-queue which might be from oliver.upton@xxxxxxxxx are
queue-4.19/kvm-arm64-vgic-its-test-for-valid-irq-in-movall-handler.patch
queue-4.19/kvm-arm64-vgic-its-test-for-valid-irq-in-its_sync_lpi_pending_table.patch
