From: Sean Christopherson Date: Wed, 11 Jun 2025 22:45:47 +0000 (-0700) Subject: KVM: SVM: Don't check for assigned device(s) when updating affinity X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=f5998661ff73b5e76974fd7913c1ccc3ff0a07a0;p=thirdparty%2Flinux.git 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 --- 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.