diff --git a/.github/labeler.yml b/.github/labeler.yml
new file mode 100644
index 00000000..d7b6a02d
--- /dev/null
+++ b/.github/labeler.yml
@@ -0,0 +1,19 @@
+aarch64:
+- changed-files:
+  - any-glob-to-any-file: src/arch/aarch64/**/*
+
+loongarch64:
+- changed-files:
+  - any-glob-to-any-file: src/arch/loongarch64/**/*
+
+riscv64:
+- changed-files:
+  - any-glob-to-any-file: src/arch/riscv64/**/*
+
+x86_64:
+- changed-files:
+  - any-glob-to-any-file: src/arch/x86_64/**/*
+
+
+
+
diff --git a/.github/workflows/issue-labeler.yml b/.github/workflows/issue-labeler.yml
new file mode 100644
index 00000000..9f93b586
--- /dev/null
+++ b/.github/workflows/issue-labeler.yml
@@ -0,0 +1,106 @@
+---
+name: Issue Labeler
+
+on:
+  issues:
+    types: [opened, edited]
+
+jobs:
+  triage:
+    name: Issue triage
+    permissions:
+      contents: read
+      issues: write
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/github-script@v7
+      with:
+        github-token: ${{ secrets.GITHUB_TOKEN }}
+        script: |
+          const title = context.payload.issue.title.toLowerCase();
+          const body = context.payload.issue.body?.toLowerCase() || '';
+          const labels = [];
+          
+          // Feature requests
+          if (title.includes('feat') || title.includes('feature') || 
+              body.includes('feat') || body.includes('feature')) {
+            labels.push('feature');
+          }
+          
+          // Bug reports
+          if (title.includes('fix') || title.includes('bug') || 
+              body.includes('fix') || body.includes('bug')) {
+            labels.push('bug');
+          }
+          
+          // Documentation
+          if (title.includes('docs') || title.includes('documentation') || 
+              body.includes('docs') || body.includes('documentation')) {
+            labels.push('documentation');
+          }
+          
+          // CI/CD
+          if (title.includes('ci') || body.includes('ci')) {
+            labels.push('ci');
+          }
+          
+          // Architecture specific
+          if (title.includes('aarch64') || body.includes('aarch64')) {
+            labels.push('aarch64');
+          }
+          if (title.includes('aarch') || body.includes('aarch')) {
+            labels.push('aarch64');
+          }
+          
+          if (title.includes('loongarch64') || body.includes('loongarch64')) {
+            labels.push('loongarch64');
+          }
+          if (title.includes('loongarch') || body.includes('loongarch')) {
+            labels.push('loongarch64');
+          }
+        
+          if (title.includes('riscv64') || body.includes('riscv64')) {
+            labels.push('riscv64');
+          }
+          
+          if (title.includes('x86_64') || body.includes('x86_64')) {
+            labels.push('x86_64');
+          }
+          
+          // Good first issue
+          if (title.includes('good first issue') || body.includes('good first issue') ||
+              title.includes('beginner') || body.includes('beginner') ||
+              title.includes('starter') || body.includes('starter')) {
+            labels.push('good first issue');
+          }
+          
+          // Help wanted
+          if (title.includes('help wanted') || body.includes('help wanted') ||
+              title.includes('help') || body.includes('help') ||
+              title.includes('help needed') || body.includes('help needed')) {
+            labels.push('help wanted');
+          }
+          
+          // Question
+          if (title.includes('question') || body.includes('question') ||
+              title.includes('how to') || body.includes('how to') ||
+              title.includes('how do') || body.includes('how do')) {
+            labels.push('question');
+          }
+          
+          // Security
+          if (title.includes('security') || body.includes('security') ||
+              title.includes('vulnerability') || body.includes('vulnerability') ||
+              title.includes('cve') || body.includes('cve')) {
+            labels.push('security');
+          }
+          
+          // Add labels if any were found
+          if (labels.length > 0) {
+            await github.rest.issues.addLabels({
+              owner: context.repo.owner,
+              repo: context.repo.repo,
+              issue_number: context.issue.number,
+              labels: labels
+            });
+          } 
\ No newline at end of file
diff --git a/.github/workflows/labeler.yml b/.github/workflows/labeler.yml
new file mode 100644
index 00000000..e8924310
--- /dev/null
+++ b/.github/workflows/labeler.yml
@@ -0,0 +1,64 @@
+---
+  name: Pull Request Labeler
+  
+  on:
+    pull_request_target:
+  
+  jobs:
+    triage:
+      name: Label triage
+      permissions:
+        contents: read
+        pull-requests: write
+        issues: write
+      runs-on: ubuntu-latest
+      steps:
+        - uses: actions/labeler@v5
+          with:
+            sync-labels: true
+        - uses: actions/github-script@v7
+          with:
+            github-token: ${{ secrets.GITHUB_TOKEN }}
+            script: |
+              const title = context.payload.pull_request.title.toLowerCase();
+              const labels = [];
+              
+              if (title.includes('feat') || title.includes('feature')) {
+                labels.push('feature');
+              }
+              
+              if (title.includes('fix') || title.includes('bug')) {
+                labels.push('bug');
+              }
+              
+              if (title.includes('docs') || title.includes('documentation')) {
+                labels.push('documentation');
+              }
+
+              if (title.includes('ci')) {
+                labels.push('ci');
+              }
+
+              if (title.includes('aarch64')) {
+                labels.push('aarch64');
+              }
+
+              if (title.includes('loongarch64')) {
+                labels.push('loongarch64');
+              }
+
+              if (title.includes('riscv64')) {
+                labels.push('riscv64');
+              }
+
+              if (title.includes('x86_64')) {
+                labels.push('x86_64');
+              }
+                
+              await github.rest.issues.addLabels({
+                owner: context.repo.owner,
+                repo: context.repo.repo,
+                issue_number: context.issue.number,
+                labels: labels
+              });
+            
\ No newline at end of file
diff --git a/Cargo.toml b/Cargo.toml
index 4920c3c3..2f39c1c3 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -48,6 +48,9 @@ x2apic = "0.4.3"
 raw-cpuid = "10.7.0"
 
 [features]
+############# general ##############
+iommu = [] # supported by: aarch64
+pci = [] # supported by: aarch64
 ############# aarch64 ##############
 # irqchip driver
 gicv2 = []
@@ -57,15 +60,13 @@ pl011 = []
 xuartps = []
 imx_uart = []
 uart_16550 = []
-# functionality
-iommu = []
-pci = []
 # pagetable layout
 pt_layout_qemu = []
 pt_layout_rk3568 = []
 # cpu 
 a55 = []
 a53 = []
+# uart infos
 rk3568_uart_base = []
 ############## riscv64 #############
 # irqchip driver