diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c
index a9024797b21f03ccf9b106ae48052b96501fce2a..4c3e5b2314cb1c8ca94ff13909af2061b702466d 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2800,6 +2800,7 @@ int kvm_mmu_page_fault(struct kvm_vcpu *vcpu, gva_t cr2, u32 error_code)
 	case EMULATE_FAIL:
 		vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 		vcpu->run->internal.suberror = KVM_INTERNAL_ERROR_EMULATION;
+		vcpu->run->internal.ndata = 0;
 		return 0;
 	default:
 		BUG();
diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index c9cc9596e1a6510a0f3d1219c9aa989613901299..c0e66dd58a47b26a3177da9f34998a38c78a1734 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -3352,6 +3352,7 @@ static int handle_invalid_guest_state(struct kvm_vcpu *vcpu)
 			kvm_report_emulation_failure(vcpu, "emulation failure");
 			vcpu->run->exit_reason = KVM_EXIT_INTERNAL_ERROR;
 			vcpu->run->internal.suberror = KVM_INTERNAL_ERROR_EMULATION;
+			vcpu->run->internal.ndata = 0;
 			ret = 0;
 			goto out;
 		}
diff --git a/include/linux/kvm.h b/include/linux/kvm.h
index ca62b8e056f9b0180167ddc1f89bd0d8d9cd3cd8..172639e94392c0dd5a4c671caa9a0b42be9308e0 100644
--- a/include/linux/kvm.h
+++ b/include/linux/kvm.h
@@ -251,6 +251,9 @@ struct kvm_run {
 		} dcr;
 		struct {
 			__u32 suberror;
+			/* Available with KVM_CAP_INTERNAL_ERROR_DATA: */
+			__u32 ndata;
+			__u64 data[16];
 		} internal;
 		/* Fix the size of the union. */
 		char padding[256];
@@ -484,6 +487,7 @@ struct kvm_ioeventfd {
 #define KVM_CAP_XEN_HVM 38
 #endif
 #define KVM_CAP_ADJUST_CLOCK 39
+#define KVM_CAP_INTERNAL_ERROR_DATA 40
 
 #ifdef KVM_CAP_IRQ_ROUTING
 
diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index bd44fb48ac43bd1f860ba8797d982f39cacbb93b..f92ba138007ace7a7669492d9852055322e69b64 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -1653,6 +1653,7 @@ static long kvm_dev_ioctl_check_extension_generic(long arg)
 #ifdef CONFIG_KVM_APIC_ARCHITECTURE
 	case KVM_CAP_SET_BOOT_CPU_ID:
 #endif
+	case KVM_CAP_INTERNAL_ERROR_DATA:
 		return 1;
 #ifdef CONFIG_HAVE_KVM_IRQCHIP
 	case KVM_CAP_IRQ_ROUTING: