add KVM tests

.github/workflows/ci.yml

@@ -345,3 +345,52 @@ jobs:
             sleep 5
             curl http://127.0.0.1:9975/help
             sleep 1
+
+  run-x86_64-kvm:
+    name: Run Hermit for Rust (x86_64 + kvm)
+    runs-on: [self-hosted]
+    steps:
+    - name: Install NASM
+      run: |
+        sudo apt-get update
+        sudo apt-get install -y nasm qemu-kvm
+    - uses: actions/checkout@v3
+      with:
+         submodules: true
+    - uses: mkroening/rust-toolchain-toml@main
+    - name: Download loader
+      uses: dsaltares/[email protected]
+      with:
+        repo: hermitcore/rusty-loader
+        file: rusty-loader-x86_64
+    - name: Build dev profile
+      run: cargo build -Zbuild-std=std,panic_abort --target x86_64-unknown-hermit --package rusty_demo
+    - name: Install uhyve
+      run: cargo +stable install --locked uhyve
+    - name: Check KVM availability
+      shell: bash
+      run: |
+         lscpu
+         kvm-ok
+    - name: Test debug version (Uhyve)
+      run: uhyve --verbose -c 1 target/x86_64-unknown-hermit/debug/rusty_demo
+      env:
+        RUST_LOG: debug
+    - name: Test debug profile (Qemu)
+      run: |
+        qemu-system-x86_64 -display none -smp 1 -m 128M -serial stdio \
+          -enable-kvm -cpu qemu64,apic,fsgsbase,rdtscp,xsave,xsaveopt,fxsr,rdrand \
+          -kernel rusty-loader-x86_64 \
+          -initrd target/x86_64-unknown-hermit/debug/rusty_demo
+    - name: Build release profile
+      run: cargo build -Zbuild-std=std,panic_abort --target x86_64-unknown-hermit --package rusty_demo --release
+    - name: Test release version (Uhyve)
+      run: uhyve --verbose -c 1 target/x86_64-unknown-hermit/release/rusty_demo
+      env:
+        RUST_LOG: debug
+    - name: Test release profile (Qemu)
+      run: |
+        qemu-system-x86_64 -display none -smp 1 -m 128M -serial stdio \
+          -enable-kvm -cpu qemu64,apic,fsgsbase,rdtscp,xsave,xsaveopt,fxsr,rdrand \
+          -kernel rusty-loader-x86_64 \
+          -initrd target/x86_64-unknown-hermit/release/rusty_demo