diff options
| author | Oliver Upton <oliver.upton@linux.dev> | 2024-02-21 09:27:32 +0000 |
|---|---|---|
| committer | Marc Zyngier <maz@kernel.org> | 2024-02-21 10:06:41 +0000 |
| commit | 85a71ee9a0700f6c18862ef3b0011ed9dad99aca (patch) | |
| tree | c8cab034bc8b836484dbbeea377c97f6a5573832 | |
| parent | 8d3a7dfb801d157ac423261d7cd62c33e95375f8 (diff) | |
| download | linux-85a71ee9a0700f6c18862ef3b0011ed9dad99aca.tar.gz | |
KVM: arm64: vgic-its: Test for valid IRQ in MOVALL handler
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>
Notes
Fixes: ff9c114394aa ("KVM: arm/arm64: GICv4: Handle MOVALL applied to a vPE") # v4.15-rc1
Stable: fcf90b4703bd # v6.6.19
Stable: 72fdbc728c33 # v6.1.80
Stable: 4deb8413eccb # v5.15.150
Stable: 615af9cb3e70 # v5.10.211
Stable: 9d17e7350403 # v5.4.270
Stable: e7908309867e # v4.19.308
Lore: https://lore.kernel.org/r/20240221092732.4126848-3-oliver.upton@linux.dev # kvmarm, stable
Lore: https://lore.kernel.org/r/20240226213822.1228736-3-oliver.upton@linux.dev # stable
Lore: https://lore.kernel.org/r/20240226215612.1387774-3-oliver.upton@linux.dev # stable
Lore: https://lore.kernel.org/r/20240227131550.178198134@linuxfoundation.org # linux-patches, stable
Lore: https://lore.kernel.org/r/20240227131552.946973582@linuxfoundation.org # linux-patches, stable
Lore: https://lore.kernel.org/r/20240227131601.225565731@linuxfoundation.org # linux-patches, stable
Lore: https://lore.kernel.org/r/20240227131613.871883250@linuxfoundation.org # linux-patches, stable
Lore: https://lore.kernel.org/r/20240227131617.901798585@linuxfoundation.org # linux-patches, stable
Lore: https://lore.kernel.org/r/20240227131631.221285443@linuxfoundation.org # linux-patches, stable
Lore: https://lore.kernel.org/r/20240227131636.750697106@linuxfoundation.org # linux-patches, stable
| -rw-r--r-- | arch/arm64/kvm/vgic/vgic-its.c | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/arm64/kvm/vgic/vgic-its.c b/arch/arm64/kvm/vgic/vgic-its.c index 082448de27ed9..28a93074eca17 100644 --- a/arch/arm64/kvm/vgic/vgic-its.c +++ b/arch/arm64/kvm/vgic/vgic-its.c @@ -1435,6 +1435,8 @@ 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); |