diff mbox series

[RFC,16/18] KVM: Advertise KVM_CAP_USERFAULT in KVM_CHECK_EXTENSION

Message ID 20240710234222.2333120-17-jthoughton@google.com (mailing list archive)
State New, archived
Headers show
Series KVM: Post-copy live migration for guest_memfd | expand

Commit Message

James Houghton July 10, 2024, 11:42 p.m. UTC 
Advertise support for KVM_CAP_USERFAULT when CONFIG_KVM_USERFAULT is
enabled.

Signed-off-by: James Houghton <jthoughton@google.com>
---
 virt/kvm/kvm_main.c | 4 ++++
 1 file changed, 4 insertions(+)
diff mbox series

Patch

diff --git a/virt/kvm/kvm_main.c b/virt/kvm/kvm_main.c
index d2ca16ddcaa1..90ce6b8ff0ab 100644
--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -4916,6 +4916,10 @@  static int kvm_vm_ioctl_check_extension_generic(struct kvm *kvm, long arg)
 #ifdef CONFIG_KVM_PRIVATE_MEM
 	case KVM_CAP_GUEST_MEMFD:
 		return !kvm || kvm_arch_has_private_mem(kvm);
+#endif
+#ifdef CONFIG_KVM_USERFAULT
+	case KVM_CAP_USERFAULT:
+		return 1;
 #endif
 	default:
 		break;