Added is_page_split

hypervisor/src/intel/ept.rs

@@ -112,6 +112,25 @@ impl Ept {
 
         Ok(())
     }
+
+    /// Checks if a guest physical address is part of a large 2MB page.
+    /// 
+    /// This function is used to determine if a guest physical address is part of a large 2MB page.
+    /// 
+    /// # Arguments
+    /// 
+    /// * `guest_pa` - The guest physical address to check.
+    /// 
+    /// # Returns
+    /// 
+    /// `true` if the guest physical address is part of a large 2MB page, otherwise `false`.
+    pub fn is_page_split(&self, guest_pa: u64) -> bool {
+        let guest_pa = VAddr::from(guest_pa);
+        let pdpt_index = pdpt_index(guest_pa);
+        let pd_index = pd_index(guest_pa);
+        let pde = &self.pd[pdpt_index].0.entries[pd_index];
+        pde.large()
+    }
 
     /// Splits a large 2MB page into 512 smaller 4KB pages for a given guest physical address.
     ///