feat: add gpt level api and publish version 0.2.1 (#45)

* feat: add gpt level api

* fix: update axaddrspace dependency version to 0.1.4

* release: publish crate version 0.2.1

* fix: update axaddrspace dependency specification

---------

Co-authored-by: 周睿 <zrufo747@outlook.com>

Author: Josen-B

Cargo.toml

@@ -1,7 +1,7 @@
 [package]
 name = "axvcpu"
 authors = ["aarkegz <aarkegz@gmail.com>"]
-version = "0.2.0"
+version = "0.2.1"
 edition = "2024"
 categories = ["virtualization", "no-std"]
 description = "Virtual CPU abstraction for ArceOS hypervisor"
@@ -13,5 +13,5 @@ license = "Apache-2.0"
 axerrno = "0.1.0"
 memory_addr = "0.4"
 percpu = "0.2.0"
-axaddrspace = "0.1"
+axaddrspace = "0.1.4"
 axvisor_api = "0.1"

src/percpu.rs

@@ -30,6 +30,10 @@ 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.