diff --git a/.github/workflows/qemu-aarch64.toml b/.github/workflows/qemu-aarch64.toml
index 46e1ed59..b23276ab 100644
--- a/.github/workflows/qemu-aarch64.toml
+++ b/.github/workflows/qemu-aarch64.toml
@@ -16,6 +16,9 @@ args = [
   "8g",
 ]
 fail_regex = []
-success_regex = ["Hello, world!"]
+success_regex = [
+    "Hello, world!",
+    "test pass!",
+]
 to_bin = true
 uefi = false
diff --git a/.github/workflows/test-qemu.yml b/.github/workflows/test-qemu.yml
index 26389cac..8ccf4e1b 100644
--- a/.github/workflows/test-qemu.yml
+++ b/.github/workflows/test-qemu.yml
@@ -12,6 +12,10 @@ jobs:
             vmconfigs: configs/vms/arceos-aarch64-qemu-smp1.toml
             vmconfigs_name: ArceOS
             vmimage_name: qemu_aarch64_arceos
+          - arch: aarch64
+            vmconfigs: configs/vms/linux-aarch64-qemu-smp1.toml
+            vmconfigs_name: Linux
+            vmimage_name: qemu_aarch64_linux
           # - arch: riscv64
           #   vmconfigs: configs/vms/arceos-riscv64-qemu-smp1.toml
           #   vmconfigs_name: ArceOS
diff --git a/configs/vms/linux-aarch64-qemu-smp1.toml b/configs/vms/linux-aarch64-qemu-smp1.toml
index 7759b5a2..e849a54d 100644
--- a/configs/vms/linux-aarch64-qemu-smp1.toml
+++ b/configs/vms/linux-aarch64-qemu-smp1.toml
@@ -34,7 +34,7 @@ dtb_load_addr = 0x8000_0000
 # Memory regions with format (`base_paddr`, `size`, `flags`, `map_type`).
 # For `map_type`, 0 means `MAP_ALLOC`, 1 means `MAP_IDENTICAL`.
 memory_regions = [
-  [0x8000_0000, 0x1000_0000, 0x7, 0], # System RAM 1G MAP_IDENTICAL
+  [0x8000_0000, 0x1000_0000, 0x7, 1], # System RAM 1G MAP_IDENTICAL
 ]
 
 #
diff --git a/kernel/src/shell/command/base.rs b/kernel/src/shell/command/base.rs
index 185d2b69..d24b945d 100644
--- a/kernel/src/shell/command/base.rs
+++ b/kernel/src/shell/command/base.rs
@@ -19,6 +19,7 @@ macro_rules! print_err {
 }
 
 // Helper function: split whitespace
+#[cfg(feature = "fs")]
 fn split_whitespace(s: &str) -> (&str, &str) {
     let s = s.trim();
     if let Some(pos) = s.find(char::is_whitespace) {
@@ -587,6 +588,7 @@ fn file_type_to_char(ty: FileType) -> char {
 }
 
 #[rustfmt::skip]
+#[cfg(feature = "fs")]
 const fn file_perm_to_rwx(mode: u32) -> [u8; 9] {
     let mut perm = [b'-'; 9];
     macro_rules! set {
diff --git a/kernel/src/shell/command/vm.rs b/kernel/src/shell/command/vm.rs
index b9b8911f..c54fe2e6 100644
--- a/kernel/src/shell/command/vm.rs
+++ b/kernel/src/shell/command/vm.rs
@@ -11,7 +11,7 @@ use std::fs::read_to_string;
 
 use crate::{
     shell::command::{CommandNode, FlagDef, OptionDef, ParsedCommand},
-    vmm::{add_running_vm_count, config::init_guest_vm, vcpus, vm_list, with_vm},
+    vmm::{add_running_vm_count, vcpus, vm_list, with_vm},
 };
 
 /// Check if a VM can transition to Running state.
@@ -124,6 +124,7 @@ fn vm_create(cmd: &ParsedCommand) {
     for config_path in args.iter() {
         println!("Creating VM from config: {}", config_path);
 
+        use crate::vmm::config::init_guest_vm;
         match read_to_string(config_path) {
             Ok(raw_cfg) => match init_guest_vm(&raw_cfg) {
                 Ok(vm_id) => {
@@ -767,6 +768,7 @@ fn delete_vm_by_id(vm_id: usize, keep_data: bool) {
     println!("✓ VM[{}] deletion completed", vm_id);
 }
 
+#[cfg(feature = "fs")]
 fn vm_list_simple() {
     let vms = vm_list::get_vm_list();
     println!("ID    NAME           STATE      VCPU   MEMORY");
diff --git a/kernel/src/vmm/mod.rs b/kernel/src/vmm/mod.rs
index 2b686502..f01ca1a3 100644
--- a/kernel/src/vmm/mod.rs
+++ b/kernel/src/vmm/mod.rs
@@ -129,10 +129,6 @@ pub fn with_vm_and_vcpu_on_pcpu(
     // }))
 }
 
-pub fn get_running_vm_count() -> usize {
-    RUNNING_VM_COUNT.load(Ordering::Acquire)
-}
-
 pub fn add_running_vm_count(count: usize) {
     RUNNING_VM_COUNT.fetch_add(count, Ordering::Release);
 }
diff --git a/xtask/src/tbuld.rs b/xtask/src/tbuld.rs
index 539913f8..bcb9a555 100644
--- a/xtask/src/tbuld.rs
+++ b/xtask/src/tbuld.rs
@@ -78,11 +78,10 @@ impl Context {
         }
 
         if !vm_config_paths.is_empty() {
-            let value = vm_config_paths
-                .iter()
-                .map(|p| format!("{}", p.display()))
-                .collect::<Vec<_>>()
-                .join(";");
+            let value = std::env::join_paths(&vm_config_paths)
+                .map_err(|e| anyhow::anyhow!("Failed to join VM config paths: {}", e))?
+                .to_string_lossy()
+                .into_owned();
             cargo.env.insert("AXVISOR_VM_CONFIGS".to_string(), value);
         }