add KVM tests with uhyve, qemu and firecracker

.github/workflows/ci.yml

@@ -345,3 +345,83 @@ 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 QEMU, NASM
+      run: |
+        sudo apt-get update
+        sudo apt-get install qemu-system-x86 nasm
+    - name: Checkout hermit-rs
+      uses: actions/checkout@v4
+      with:
+        repository: hermitcore/hermit-rs
+        submodules: true
+    - name: Remove hermit-kernel submodule
+      run: git rm -r kernel
+    - name: Checkout hermit-kernel
+      uses: actions/checkout@v4
+      with:
+        path: kernel
+    - uses: mkroening/rust-toolchain-toml@main
+    - uses: Swatinem/rust-cache@v2
+    - name: Build dev profile
+      run: cargo build -Zbuild-std=std,panic_abort --package rusty_demo --target x86_64-unknown-hermit
+    - name: Download loader (x86_64)
+      uses: dsaltares/fetch-gh-release-asset@1.1.1
+      with:
+        repo: hermitcore/rusty-loader
+        file: rusty-loader-x86_64
+    - 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
+    - name: Download loader (x86_64-fc)
+      uses: dsaltares/fetch-gh-release-asset@1.1.1
+      with:
+        repo: hermitcore/rusty-loader
+        file: rusty-loader-x86_64-fc
+    - name: Download firecracker
+      uses: dsaltares/fetch-gh-release-asset@1.1.1
+      with:
+        repo: firecracker-microvm/firecracker
+        version: tags/v1.4.1
+        file: firecracker-v1.4.1-x86_64.tgz
+        target: 'firecracker-x86_64.tgz'
+    - name: Install firecracker
+      run: |
+        tar xzvf firecracker-x86_64.tgz --one-top-level=fc --strip-components 1
+    - name: Build minimal profile (debug)
+      run: cargo build -Zbuild-std=std,panic_abort --target x86_64-unknown-hermit --no-default-features --package hello_world
+    - name: Test debug profile (Firecracker)
+      run: |
+        ./fc/firecracker-v1.4.1-x86_64 --no-api --config-file ./kernel/fc-config.json &
+        sleep 1
+        kill -KILL $(pidof firecracker-v1.4.1-x86_64)

fc-config.json

@@ -0,0 +1,13 @@
+{
+  "boot-source": {
+    "kernel_image_path": "./rusty-loader-x86_64-fc",
+    "initrd_path": "target/x86_64-unknown-hermit/debug/hello_world",
+    "boot_args": ""
+  },
+  "drives": [],
+  "machine-config": {
+    "vcpu_count": 1,
+    "mem_size_mib": 256,
+    "smt": false
+  }
+}