diff options
| author | Sean Christopherson <seanjc@google.com> | 2025-06-11 15:45:52 -0700 |
|---|---|---|
| committer | Sean Christopherson <seanjc@google.com> | 2025-06-23 09:50:44 -0700 |
| commit | 04c4ca0ae47989d8f1263ffa6b77ab05d6160854 (patch) | |
| tree | a1754ff780da01dc75176f2d3009d57d655c0211 | |
| parent | cd86240fea2645abd3cdd4d87f27f3a4a0595da7 (diff) | |
KVM: x86: Drop superfluous "has assigned device" check in kvm_pi_update_irte()
Don't bother checking if the VM has an assigned device when updating
IRTE entries. kvm_arch_irq_bypass_add_producer() explicitly increments
the assigned device count, kvm_arch_irq_bypass_del_producer() explicitly
decrements the count before invoking kvm_pi_update_irte(), and
kvm_irq_routing_update() only updates IRTE entries if there's an active
IRQ bypass producer.
Link: https://lore.kernel.org/r/20250611224604.313496-51-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
| -rw-r--r-- | arch/x86/kvm/irq.c | 4 |
1 files changed, 1 insertions, 3 deletions
diff --git a/arch/x86/kvm/irq.c b/arch/x86/kvm/irq.c index bc9ebd893566..b3b6cf5b828a 100644 --- a/arch/x86/kvm/irq.c +++ b/arch/x86/kvm/irq.c @@ -517,9 +517,7 @@ static int kvm_pi_update_irte(struct kvm_kernel_irqfd *irqfd, struct kvm_lapic_irq irq; int r; - if (!irqchip_in_kernel(kvm) || - !kvm_arch_has_irq_bypass() || - !kvm_arch_has_assigned_device(kvm)) + if (!irqchip_in_kernel(kvm) || !kvm_arch_has_irq_bypass()) return 0; if (entry && entry->type == KVM_IRQ_ROUTING_MSI) { |