From 343ec3ccf99a86fb9c67a7b0372e9b7a745f0640 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E5=91=A8=E7=9D=BF?= <zrufo747@outlook.com>
Date: Tue, 9 Sep 2025 10:35:26 +0800
Subject: [PATCH] feat: add gpt level api

---
 Cargo.toml    | 2 +-
 src/percpu.rs | 4 ++++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/Cargo.toml b/Cargo.toml
index 174b683..d5878b6 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -1,7 +1,7 @@
 [package]
 name = "axvcpu"
 authors = ["aarkegz <aarkegz@gmail.com>"]
-version = "0.1.1"
+version = "0.1.2"
 edition = "2024"
 categories = ["virtualization", "no-std"]
 description = "Virtual CPU abstraction for ArceOS hypervisor"
diff --git a/src/percpu.rs b/src/percpu.rs
index baf748f..3e24260 100644
--- a/src/percpu.rs
+++ b/src/percpu.rs
@@ -16,6 +16,10 @@ pub trait AxArchPerCpu: Sized {
     fn hardware_enable(&mut self) -> AxResult;
     /// Disable hardware virtualization on the current CPU.
     fn hardware_disable(&mut self) -> AxResult;
+    /// Return max guest page table levels used by the architecture.
+    fn max_guest_page_table_levels(&self) -> usize {
+        4
+    }
 }
 
 /// Host per-CPU states to run the guest.