diff --git a/Cargo.lock b/Cargo.lock
index d3c7ebe0..1441b53a 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -232,7 +232,7 @@ dependencies = [
 [[package]]
 name = "axcpu"
 version = "0.2.2"
-source = "git+https://github.com/Starry-OS/axcpu.git?rev=fdbf401#fdbf401a358b4088ff5b9e43d1de049827dab40b"
+source = "git+https://github.com/Starry-OS/axcpu.git?rev=9b94417#9b9441796ee31db44ddd9d60335266ba7e07f394"
 dependencies = [
  "aarch64-cpu",
  "axbacktrace",
@@ -380,6 +380,7 @@ dependencies = [
  "axruntime",
  "axsync",
  "axtask",
+ "kspin",
 ]
 
 [[package]]
@@ -532,7 +533,7 @@ dependencies = [
 [[package]]
 name = "axplat"
 version = "0.2.0"
-source = "git+https://github.com/Starry-OS/axplat_crates.git?rev=243fdc9#243fdc9265ba472cffffddc1cae9a47371caf8e3"
+source = "git+https://github.com/Starry-OS/axplat_crates.git?rev=7eb392e#7eb392e1bed6bd102ed917e2b0cbf00efe065a90"
 dependencies = [
  "axplat-macros",
  "bitflags 2.10.0",
@@ -540,12 +541,13 @@ dependencies = [
  "crate_interface",
  "kspin",
  "memory_addr",
+ "percpu",
 ]
 
 [[package]]
 name = "axplat-aarch64-peripherals"
 version = "0.2.0"
-source = "git+https://github.com/Starry-OS/axplat_crates.git?rev=243fdc9#243fdc9265ba472cffffddc1cae9a47371caf8e3"
+source = "git+https://github.com/Starry-OS/axplat_crates.git?rev=7eb392e#7eb392e1bed6bd102ed917e2b0cbf00efe065a90"
 dependencies = [
  "aarch64-cpu",
  "arm-gic-driver",
@@ -564,7 +566,7 @@ dependencies = [
 [[package]]
 name = "axplat-aarch64-qemu-virt"
 version = "0.2.0"
-source = "git+https://github.com/Starry-OS/axplat_crates.git?rev=243fdc9#243fdc9265ba472cffffddc1cae9a47371caf8e3"
+source = "git+https://github.com/Starry-OS/axplat_crates.git?rev=7eb392e#7eb392e1bed6bd102ed917e2b0cbf00efe065a90"
 dependencies = [
  "axconfig-macros",
  "axcpu",
@@ -577,7 +579,7 @@ dependencies = [
 [[package]]
 name = "axplat-loongarch64-qemu-virt"
 version = "0.2.0"
-source = "git+https://github.com/Starry-OS/axplat_crates.git?rev=243fdc9#243fdc9265ba472cffffddc1cae9a47371caf8e3"
+source = "git+https://github.com/Starry-OS/axplat_crates.git?rev=7eb392e#7eb392e1bed6bd102ed917e2b0cbf00efe065a90"
 dependencies = [
  "axconfig-macros",
  "axcpu",
@@ -605,7 +607,7 @@ dependencies = [
 [[package]]
 name = "axplat-riscv64-qemu-virt"
 version = "0.2.0"
-source = "git+https://github.com/Starry-OS/axplat_crates.git?rev=243fdc9#243fdc9265ba472cffffddc1cae9a47371caf8e3"
+source = "git+https://github.com/Starry-OS/axplat_crates.git?rev=7eb392e#7eb392e1bed6bd102ed917e2b0cbf00efe065a90"
 dependencies = [
  "axconfig-macros",
  "axcpu",
@@ -613,9 +615,9 @@ dependencies = [
  "kspin",
  "lazyinit",
  "log",
- "plic",
  "riscv",
  "riscv_goldfish",
+ "riscv_plic",
  "sbi-rt",
  "uart_16550",
 ]
@@ -641,7 +643,7 @@ dependencies = [
 [[package]]
 name = "axplat-x86-pc"
 version = "0.2.0"
-source = "git+https://github.com/Starry-OS/axplat_crates.git?rev=243fdc9#243fdc9265ba472cffffddc1cae9a47371caf8e3"
+source = "git+https://github.com/Starry-OS/axplat_crates.git?rev=7eb392e#7eb392e1bed6bd102ed917e2b0cbf00efe065a90"
 dependencies = [
  "axconfig-macros",
  "axcpu",
@@ -1955,6 +1957,14 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "07aac72f95e774476db82916d79f2d303191310393830573c1ab5c821b21660a"
 
+[[package]]
+name = "riscv_plic"
+version = "0.2.0"
+source = "git+https://github.com/Starry-OS/riscv_plic.git?tag=v0.2.0#be7776f3c790c2155718c610b437cce664b440e7"
+dependencies = [
+ "tock-registers 0.10.1",
+]
+
 [[package]]
 name = "rlsf"
 version = "0.2.1"
@@ -2367,6 +2377,12 @@ version = "0.9.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2b9e2fdb3a1e862c0661768b7ed25390811df1947a8acbfbefe09b47078d93c4"
 
+[[package]]
+name = "tock-registers"
+version = "0.10.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8d2d250f87fb3fb6f225c907cf54381509f47b40b74b1d1f12d2dccbc915bdfe"
+
 [[package]]
 name = "toml_datetime"
 version = "0.6.11"
diff --git a/Cargo.toml b/Cargo.toml
index 71744803..9d8adc76 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -112,6 +112,7 @@ qemu = [
     "axfeat/fs-times",
     "starry-api/dev-log",
 ]
+smp = ["axfeat/smp", "axplat-riscv64-visionfive2?/smp"]
 
 vf2 = ["dep:axplat-riscv64-visionfive2", "axfeat/driver-sdmmc-gpt"]
 
@@ -145,15 +146,15 @@ features = ["fp-simd", "irq", "rtc"]
 optional = true
 
 [patch.crates-io]
-axcpu = { git = "https://github.com/Starry-OS/axcpu.git", rev = "fdbf401" }
+axcpu = { git = "https://github.com/Starry-OS/axcpu.git", rev = "9b94417" }
 axerrno = { git = "https://github.com/Starry-OS/axerrno.git", rev = "f1e2bca" }
 axfs-ng-vfs = { git = "https://github.com/Starry-OS/axfs-ng-vfs.git", rev = "d6f470f" }
 axio = { git = "https://github.com/Starry-OS/axio.git", rev = "ebb0c6b" }
-axplat = { git = "https://github.com/Starry-OS/axplat_crates.git", rev = "243fdc9" }
-axplat-x86-pc = { git = "https://github.com/Starry-OS/axplat_crates.git", rev = "243fdc9" }
-axplat-aarch64-qemu-virt = { git = "https://github.com/Starry-OS/axplat_crates.git", rev = "243fdc9" }
-axplat-riscv64-qemu-virt = { git = "https://github.com/Starry-OS/axplat_crates.git", rev = "243fdc9" }
-axplat-loongarch64-qemu-virt = { git = "https://github.com/Starry-OS/axplat_crates.git", rev = "243fdc9" }
+axplat = { git = "https://github.com/Starry-OS/axplat_crates.git", rev = "7eb392e" }
+axplat-x86-pc = { git = "https://github.com/Starry-OS/axplat_crates.git", rev = "7eb392e" }
+axplat-aarch64-qemu-virt = { git = "https://github.com/Starry-OS/axplat_crates.git", rev = "7eb392e" }
+axplat-riscv64-qemu-virt = { git = "https://github.com/Starry-OS/axplat_crates.git", rev = "7eb392e" }
+axplat-loongarch64-qemu-virt = { git = "https://github.com/Starry-OS/axplat_crates.git", rev = "7eb392e" }
 page_table_entry = { git = "https://github.com/Starry-OS/page_table_multiarch.git", rev = "9df46c8" }
 page_table_multiarch = { git = "https://github.com/Starry-OS/page_table_multiarch.git", rev = "9df46c8" }
 starry-process = { git = "https://github.com/Starry-OS/starry-process.git", rev = "6327455" }
diff --git a/api/src/lib.rs b/api/src/lib.rs
index 0f545eda..fabeb797 100644
--- a/api/src/lib.rs
+++ b/api/src/lib.rs
@@ -23,9 +23,6 @@ pub mod vfs;
 
 /// Initialize.
 pub fn init() {
-    if axconfig::plat::CPU_NUM > 1 {
-        panic!("SMP is not supported");
-    }
     info!("Initialize VFS...");
     vfs::mount_all().expect("Failed to mount vfs");
 
diff --git a/arceos b/arceos
index a8c55658..1cd239e5 160000
--- a/arceos
+++ b/arceos
@@ -1 +1 @@
-Subproject commit a8c556585303447a7a3470d2578635ceb00ffe8e
+Subproject commit 1cd239e5920ca1f226b5a2c0d1e2d5e3b9a67265