[PATCH 48/67] KVM: SVM: Don't check for assigned device(s) when updating affinity
From: Sean Christopherson
Date: Fri Apr 04 2025 - 16:10:50 EST
Don't bother checking if a VM has an assigned device when updating AVIC
vCPU affinity, querying ir_list is just as cheap and nothing prevents
racing with changes in device assignment.
Signed-off-by: Sean Christopherson <seanjc@xxxxxxxxxx>
---
arch/x86/kvm/svm/avic.c | 3 ---
1 file changed, 3 deletions(-)
diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c
index 04bc1aa88dcc..fc06bb9cad88 100644
--- a/arch/x86/kvm/svm/avic.c
+++ b/arch/x86/kvm/svm/avic.c
@@ -857,9 +857,6 @@ static inline int avic_update_iommu_vcpu_affinity(struct kvm_vcpu *vcpu, int cpu
lockdep_assert_held(&svm->ir_list_lock);
- if (!kvm_arch_has_assigned_device(vcpu->kvm))
- return 0;
-
/*
* Here, we go through the per-vcpu ir_list to update all existing
* interrupt remapping table entry targeting this vcpu.
--
2.49.0.504.g3bcea36a83-goog