diff options
| author |   Sean Christopherson <seanjc@google.com> | 2025-04-04 12:38:20 -0700 |
|---|---|---|
| committer |   Paolo Bonzini <pbonzini@redhat.com> | 2025-04-24 09:52:31 -0400 |
| commit | 07172206a26dcf3f0bf7c3ecaadd4242b008ea54 (patch) | |
| tree | 2abce98b8e0041aaf09b46871c043ee5d9d3d30c | |
| parent | KVM: x86: Take irqfds.lock when adding/deleting IRQ bypass producer (diff) | |
| download | wireguard-linux-07172206a26dcf3f0bf7c3ecaadd4242b008ea54.tar.xz wireguard-linux-07172206a26dcf3f0bf7c3ecaadd4242b008ea54.zip | |
iommu/amd: Return an error if vCPU affinity is set for non-vCPU IRTE
Return -EINVAL instead of success if amd_ir_set_vcpu_affinity() is
invoked without use_vapic; lying to KVM about whether or not the IRTE was
configured to post IRQs is all kinds of bad.
Fixes: d98de49a53e4 ("iommu/amd: Enable vAPIC interrupt remapping mode by default")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-ID: <20250404193923.1413163-6-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to '')
| -rw-r--r-- | drivers/iommu/amd/iommu.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/iommu/amd/iommu.c b/drivers/iommu/amd/iommu.c index be8761bbef0f..00965518b802 100644 --- a/drivers/iommu/amd/iommu.c +++ b/drivers/iommu/amd/iommu.c @@ -3879,7 +3879,7 @@ static int amd_ir_set_vcpu_affinity(struct irq_data *data, void *vcpu_info) * we should not modify the IRTE */ if (!dev_data || !dev_data->use_vapic) - return 0; + return -EINVAL; ir_data->cfg = irqd_cfg(data); pi_data->ir_data = ir_data; |