diff --git a/Cargo.toml b/Cargo.toml
index 73df634..21c26ed 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,15 +11,15 @@ repository = "https://github.com/Byte-OS/polyhal"
 
 [features]
 kcontext = []
-multicore = []
-interrupt = []
+multicore = ["boot"]
+trap = []
 boot = []
 logger = []
 
 vga_text = []
 graphic = []
 
-default = ["multicore", "interrupt", "boot", "kcontext"]
+default = ["boot", "trap", "kcontext"]
 
 [dependencies]
 log = "0.4"
diff --git a/example/Cargo.lock b/example/Cargo.lock
index 53c7cf5..9015c45 100644
--- a/example/Cargo.lock
+++ b/example/Cargo.lock
@@ -171,6 +171,8 @@ dependencies = [
 [[package]]
 name = "polyhal-macro"
 version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d5cee39179815e92d0109327456e59eaed6021d0377c2fd84d02f2c6c345b122"
 dependencies = [
  "proc-macro2",
  "quote",
diff --git a/src/components/boot/mod.rs b/src/components/boot/mod.rs
index 8b38d06..14aea5b 100644
--- a/src/components/boot/mod.rs
+++ b/src/components/boot/mod.rs
@@ -15,6 +15,5 @@ pub(crate) static mut BOOT_STACK: [u8; STACK_SIZE] = [0; STACK_SIZE];
 
 // Declare the _main_for_arch exists.
 extern "Rust" {
-    #[cfg(feature = "boot")]
     pub(crate) fn _main_for_arch(hartid: usize);
 }
diff --git a/src/components/pagetable/riscv64.rs b/src/components/pagetable/riscv64.rs
index 3839d3b..0921f3f 100644
--- a/src/components/pagetable/riscv64.rs
+++ b/src/components/pagetable/riscv64.rs
@@ -4,7 +4,6 @@ use bitflags::bitflags;
 use riscv::register::satp;
 
 use crate::addr::{PhysAddr, PhysPage, VirtAddr, VirtPage};
-use crate::components::boot::boot_page_table;
 
 use crate::components::pagetable::{MappingFlags, PageTable, PTE, TLB};
 use crate::utils::bit;
@@ -185,7 +184,7 @@ impl PageTable {
     #[inline]
     pub fn restore(&self) {
         self.release();
-        let kernel_arr = Self::get_pte_list(boot_page_table().0);
+        let kernel_arr = Self::get_pte_list(crate::boot::boot_page_table().0);
         let arr = Self::get_pte_list(self.0);
         arr[0x100..].copy_from_slice(&kernel_arr[0x100..]);
         arr[0..0x100].fill(PTE(0));