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KVM: SVM: Don't check for assigned device(s) when updating affinity

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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 <seanjc@google.com>
This commit is contained in:
Sean Christopherson 2025-06-11 15:45:47 -07:00
parent 6df262f915
commit f5998661ff
1 changed files with 0 additions and 3 deletions
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3
arch/x86/kvm/svm/avic.c
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@ -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.