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| author | Oliver Upton <oliver.upton@linux.dev> | 2024-04-15 14:21:25 -0700 |
|---|---|---|
| committer | Oliver Upton <oliver.upton@linux.dev> | 2024-04-15 14:31:16 -0700 |
| commit | 0f7ddabfb8601a1e13798890dd506611e30b97f2 (patch) | |
| tree | 11e4b54574a9284ceed23b79791e9f462fa3ddf2 | |
| parent | 0c448ad0eb243078e1c699410f41a9594a9a3eb2 (diff) | |
| download | linux-kvm-arm64/gicv4-unmapped-msis.tar.gz | |
KVM: arm64: vgic-v4: Don't fail irqbypass for unmapped MSIskvm-arm64/gicv4-unmapped-msis
There exists a subtle difference in KVM between emulated and
hardware-virtualized LPI injection where in the latter case MSIs that
lack an ITS translation fail the whole irqbypass registration. This is
no good, and is entirely out of userspace's control in the first place.
Stop silently failing irqbypass registration and fall back to software
routing, for now.
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
| -rw-r--r-- | arch/arm64/kvm/vgic/vgic-v4.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/arm64/kvm/vgic/vgic-v4.c b/arch/arm64/kvm/vgic/vgic-v4.c index 74a67ad87f29de..69bfb96d5dafd4 100644 --- a/arch/arm64/kvm/vgic/vgic-v4.c +++ b/arch/arm64/kvm/vgic/vgic-v4.c @@ -484,7 +484,7 @@ int kvm_vgic_v4_set_forwarding(struct kvm *kvm, int virq, out: mutex_unlock(&its->its_lock); - return ret; + return 0; } int kvm_vgic_v4_unset_forwarding(struct kvm *kvm, int virq, |