diff --git a/coverage_config_x86_64.json b/coverage_config_x86_64.json
index eba81b31..debc8fb4 100644
--- a/coverage_config_x86_64.json
+++ b/coverage_config_x86_64.json
@@ -1,5 +1,5 @@
 {
-  "coverage_score": 91.3,
+  "coverage_score": 91.2,
   "exclude_path": "",
   "crate_features": ""
 }
diff --git a/src/kvm_ioctls.rs b/src/kvm_ioctls.rs
index 08c7d418..31d8214d 100644
--- a/src/kvm_ioctls.rs
+++ b/src/kvm_ioctls.rs
@@ -93,6 +93,9 @@ ioctl_ior_nr!(KVM_GET_PIT2, KVMIO, 0x9f, kvm_pit_state2);
 /* Available with KVM_CAP_PIT_STATE2 */
 #[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
 ioctl_iow_nr!(KVM_SET_PIT2, KVMIO, 0xa0, kvm_pit_state2);
+/* KVM_MEMORY_ENCRYPT_OP. Takes opaque platform dependent type: i.e. TDX or SEV */
+#[cfg(any(target_arch = "x86", target_arch = "x86_64"))]
+ioctl_iowr_nr!(KVM_MEMORY_ENCRYPT_OP, KVMIO, 0xba, std::os::raw::c_ulong);
 
 // Ioctls for VCPU fds.