KVM: x86: Scan for IOAPIC changes at lowest VMPL

Currently all IRQ requests are targeted to the lowest priority VMPL which is where the OS will be running. This patch updates the IOAPIC request scan to use the default IRQ VMPL from the KVM arch configuration. Signed-off-by: Roy Hopkins <[email protected]>
coconut-svsm · Oct 3, 2024 · 80e4a6b · 80e4a6b
1 parent e4bc6d5
commit 80e4a6b
Showing 1 changed file with 3 additions and 2 deletions.
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
@@ -10638,12 +10638,12 @@ int kvm_get_nr_pending_nmis(struct kvm_vcpu *vcpu)
 void kvm_make_scan_ioapic_request_mask(struct kvm *kvm,
 				       unsigned long *vcpu_bitmap)
 {
-	kvm_make_vcpus_request_mask(kvm, KVM_REQ_SCAN_IOAPIC, vcpu_bitmap);
+	kvm_make_vcpus_request_mask_vmpl(kvm, KVM_REQ_SCAN_IOAPIC, vcpu_bitmap, kvm->arch.default_irq_vmpl);
 }
 
 void kvm_make_scan_ioapic_request(struct kvm *kvm)
 {
-	kvm_make_all_cpus_request(kvm, KVM_REQ_SCAN_IOAPIC);
+	kvm_make_all_cpus_request_vmpl(kvm, KVM_REQ_SCAN_IOAPIC, kvm->arch.default_irq_vmpl);
 }
 
 void __kvm_vcpu_update_apicv(struct kvm_vcpu *vcpu)
@@ -10761,6 +10761,7 @@ EXPORT_SYMBOL_GPL(kvm_set_or_clear_apicv_inhibit);
 
 static void vcpu_scan_ioapic(struct kvm_vcpu *vcpu)
 {
+	vcpu = vcpu->vcpu_parent->vcpu_vmpl[vcpu->kvm->arch.default_irq_vmpl];
 	if (!kvm_apic_present(vcpu))
 		return;