diff --git a/.github/workflows/lint.yml b/.github/workflows/lint.yml
new file mode 100644
index 000000000..9e1f8271a
--- /dev/null
+++ b/.github/workflows/lint.yml
@@ -0,0 +1,72 @@
+name: Code linting
+on:
+  pull_request:
+    types:
+      - opened
+      - synchronize
+      - reopened
+      - ready_for_review
+      - labeled
+env:
+  USER: runner
+
+# Cancel the current workflow when new commit pushed
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event.pull_request.number }}
+  cancel-in-progress: true
+
+jobs:
+  checkfmt:
+    name: "Check formats"
+    strategy:
+      fail-fast: false
+    runs-on: [self-hosted, linux, nixos]
+    steps:
+      - uses: actions/checkout@v4
+        with:
+          fetch-depth: 0
+          ref: ${{ github.head_ref }}
+      - name: "Run testcases"
+        run: |
+          RET=0
+          warnOnFileChanged() {
+            if ! git diff -q --exit-code; then
+              RET=1
+              local msg="$1"; shift
+              echo "$msg"
+              echo "$msg" >> $GITHUB_STEP_SUMMARY
+              git reset --hard
+            fi
+          }
+
+          nix develop '.#t1.elaborator' -c mill -i configgen.reformat
+          nix develop '.#t1.elaborator' -c mill -i rocketv.reformat
+          nix develop '.#t1.elaborator' -c mill -i t1.reformat
+          nix develop '.#t1.elaborator' -c mill -i t1rocket.reformat
+          warnOnFileChanged "* Scala format fail, please run 'nix develop '.#t1.elaborator' -c mill -i _.reformat'"
+
+          nix fmt
+          warnOnFileChanged "* Nix format fail, please run 'nix fmt'"
+
+          pushd difftest
+          nix shell '.#cargo' '.#rustfmt' -c cargo fmt
+          warnOnFileChanged "* Cargo format fail, please run 'cd difftest; nix run .#cargo -- format'"
+          popd
+
+          pushd t1rocketemu
+          nix shell '.#cargo' '.#rustfmt' -c cargo fmt
+          warnOnFileChanged "* Cargo format fail, please run 'cd t1rocketemu; nix run .#cargo -- format'"
+          popd
+
+          if nix run '.#ripgrep' -- '\p{Script=Han}' t1 > zh-hans.txt; then
+            RET=1
+            msg="* Found ZH_CN comments"
+            echo "$msg"
+            echo "$msg" >> $GITHUB_STEP_SUMMARY
+            echo '```text' >> $GITHUB_STEP_SUMMARY
+            cat zh-hans.txt >> $GITHUB_STEP_SUMMARY
+            echo '```' >> $GITHUB_STEP_SUMMARY
+            git reset --hard
+          fi
+
+          exit $RET
diff --git a/difftest/dpi_t1rocket/src/dpi.rs b/difftest/dpi_t1rocket/src/dpi.rs
index 9f4db2699..8e9b85e69 100644
--- a/difftest/dpi_t1rocket/src/dpi.rs
+++ b/difftest/dpi_t1rocket/src/dpi.rs
@@ -4,8 +4,8 @@
 use dpi_common::dump::DumpControl;
 use dpi_common::plusarg::PlusArgMatcher;
 use dpi_common::DpiTarget;
-use svdpi::SvScope;
 use std::ffi::{c_char, c_longlong};
+use svdpi::SvScope;
 use tracing::debug;
 
 use crate::drive::Driver;
@@ -58,7 +58,8 @@ unsafe fn load_from_payload(
     })
     .collect();
   assert_eq!(
-    masks.len(), data.len(),
+    masks.len(),
+    data.len(),
     "strobe bit width is not aligned with data byte width"
   );
 
@@ -316,4 +317,3 @@ unsafe extern "C" fn get_resetvector(resetvector: *mut c_longlong) {
 //--------------------------------
 // import functions and wrappers
 //--------------------------------
-
diff --git a/difftest/dpi_t1rocket/src/drive.rs b/difftest/dpi_t1rocket/src/drive.rs
index 8f8cbca3b..af72cf530 100644
--- a/difftest/dpi_t1rocket/src/drive.rs
+++ b/difftest/dpi_t1rocket/src/drive.rs
@@ -1,7 +1,7 @@
 use crate::dpi::*;
-use svdpi::SvScope;
 use crate::OnlineArgs;
 use crate::{get_t, EXIT_CODE, EXIT_POS};
+use svdpi::SvScope;
 
 use anyhow::Context;
 use dpi_common::dump::{DumpControl, DumpEndError};
@@ -141,7 +141,7 @@ impl Driver {
 
       shadow_mem,
 
-      quit: false
+      quit: false,
     }
   }
 
@@ -335,7 +335,7 @@ impl Driver {
       WATCHDOG_TIMEOUT
     } else {
       match self.dump_control.trigger_watchdog(tick) {
-        Ok(()) => {},
+        Ok(()) => {}
         Err(DumpEndError) => {
           info!(
             "[{tick}] run to dump end, exiting (last_commit_cycle={})",