svm: Add warning message for AVIC IPI invalid target
authorSuravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Tue, 22 Jan 2019 10:24:19 +0000 (10:24 +0000)
committerPaolo Bonzini <pbonzini@redhat.com>
Fri, 25 Jan 2019 18:11:34 +0000 (19:11 +0100)
Print warning message when IPI target ID is invalid due to one of
the following reasons:
  * In logical mode: cluster > max_cluster (64)
  * In physical mode: target > max_physical (512)
  * Address is not present in the physical or logical ID tables

Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/kvm/svm.c

index a157ca5b686955bbf9942f6a6f3b68247f7bb5cb..2aff835a65ed28f933108a80b1e1365228a14cef 100644 (file)
@@ -4526,6 +4526,8 @@ static int avic_incomplete_ipi_interception(struct vcpu_svm *svm)
                break;
        }
        case AVIC_IPI_FAILURE_INVALID_TARGET:
+               WARN_ONCE(1, "Invalid IPI target: index=%u, vcpu=%d, icr=%#0x:%#0x\n",
+                         index, svm->vcpu.vcpu_id, icrh, icrl);
                break;
        case AVIC_IPI_FAILURE_INVALID_BACKING_PAGE:
                WARN_ONCE(1, "Invalid backing page\n");