From f5998661ff73b5e76974fd7913c1ccc3ff0a07a0 Mon Sep 17 00:00:00 2001 From: Sean Christopherson Date: Wed, 11 Jun 2025 15:45:47 -0700 Subject: [PATCH] KVM: SVM: Don't check for assigned device(s) when updating affinity 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. Link: https://lore.kernel.org/r/20250611224604.313496-46-seanjc@google.com Signed-off-by: Sean Christopherson --- 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 cb6317fcaddf7..e1fa5c73bc98b 100644 --- a/arch/x86/kvm/svm/avic.c +++ b/arch/x86/kvm/svm/avic.c @@ -848,9 +848,6 @@ 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. -- 2.47.2