KVM: SVM: Process all IRTEs on affinity change even if one update fails

When updating IRTE GA fields, keep processing all other IRTEs if an update
fails, as not updating later entries risks making a bad situation worse.

Link: https://lore.kernel.org/r/20250611224604.313496-49-seanjc@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>

diff --git a/arch/x86/kvm/svm/avic.c b/arch/x86/kvm/svm/avic.c
index 31bf202e0026dc61468c08d53af68c4a0db96649..6ecbd7984975c2dd961b6ce0a187b0987438f840 100644 (file)
--- a/arch/x86/kvm/svm/avic.c
+++ b/arch/x86/kvm/svm/avic.c
@@ -850,12 +850,10 @@ static inline int avic_update_iommu_vcpu_affinity(struct kvm_vcpu *vcpu, int cpu
        if (list_empty(&svm->ir_list))
                return 0;
 
-       list_for_each_entry(irqfd, &svm->ir_list, vcpu_list) {
+       list_for_each_entry(irqfd, &svm->ir_list, vcpu_list)
                ret = amd_iommu_update_ga(cpu, irqfd->irq_bypass_data);
-               if (ret)
-                       return ret;
-       }
-       return 0;
+
+       return ret;
 }
 
 void avic_vcpu_load(struct kvm_vcpu *vcpu, int cpu)