add feature: 4-level-ept

Author: Josen-B

Cargo.toml

@@ -11,6 +11,7 @@ license = "GPL-3.0-or-later OR Apache-2.0 OR MulanPubL-2.0 OR MulanPSL2"
 
 [features]
 fs = ["axstd/fs"]
+4-level-ept = ["axaddrspace/4-level-ept", "axvm/4-level-ept"]
 
 [dependencies]
 log = "=0.4.21"