diff options
| author | Sean Christopherson <seanjc@google.com> | 2025-06-11 15:45:48 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2025-06-23 09:50:41 -0700 |
| commit | fe0213923dd991cbe6a1e84b9bf600aaf172b530 (patch) | |
| tree | 7035e418bbc626c50cf125e4fd38df8cc2d9925c /arch/x86/kvm/svm/avic.c | |
| parent | f5998661ff73b5e76974fd7913c1ccc3ff0a07a0 (diff) | |
KVM: SVM: Don't check for assigned device(s) when activating AVIC
Don't short-circuit IRTE updating when (de)activating AVIC based on the
VM having assigned devices, as nothing prevents AVIC (de)activation from
racing with device (de)assignment. And from a performance perspective,
bailing early when there is no assigned device doesn't add much, as
ir_list_lock will never be contended if there's no assigned device.
Link: https://lore.kernel.org/r/20250611224604.313496-47-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Diffstat (limited to 'arch/x86/kvm/svm/avic.c')
| -rw-r--r-- | arch/x86/kvm/svm/avic.c | 3 |
1 files changed, 0 insertions, 3 deletions
diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c index e1fa5c73bc98..f3bfd7cb0bca 100644 --- a/arch/x86/kvm/svm/avic.c +++ b/arch/x86/kvm/svm/avic.c @@ -733,9 +733,6 @@ static int avic_set_pi_irte_mode(struct kvm_vcpu *vcpu, bool activate) struct vcpu_svm *svm = to_svm(vcpu); struct kvm_kernel_irqfd *irqfd; - 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. |