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+# StratoVirt&hypervisor于ARM平台上的测试
+StratoVirt是计算产业中面向云数据中心的企业级虚拟化平台，实现了一套架构统一支持虚拟机、容器、Serverless三种场景。 StratoVirt在轻量低噪、软硬协同、Rust语言级安全等方面具备关键技术竞争优势。
+
+StratoVirt预留了接口和设计来支持更多特性，同时支持标准虚拟化和轻量级虚拟化，也预留了对新型异构设备扩展支持能力。
+## StratoVirt构建
+运行命令`git clone https://github.com/openeuler-mirror/stratovirt`将StratoVirt克隆到本地，参考[StratoVirt快速开始](https://github.com/openeuler-mirror/stratovirt/blob/master/docs/quickstart.md)构建StratoVirt。  
+
+    git clone https://gitee.com/openeuler/stratovirt.git  
+    cd stratovirt  
+    make build
+
+## StratoVirt测试
+StratoVirt由Rust语言编写，通过Rust的包管理工具Cargo对项目进行测试。命令`curl --proto '=https' --tlsv1.2 -sSf https://sh.rustup.rs | sh`安装Rust。测试时使用的Rust版本位1.79.0，测试分为Mod test和hydropper test。
+### Mod test
+在Mod test之前，可通过`cargo test --workspace --exclude mod_test -- --nocapture --test-threads=1`执行Unit test，用于验证非测试代码是否按预期方式运行。按如下方式运行StratoVirt单元测试。
+
+StratoVirt mod测试是一种综合测试方法。在测试过程中，StratoVirt进程将作为服务器启动，并通过套接字和QMP进行通信，以测试StratoVirt模块的功能。
+
+在运行mod测试之前，需要首先编译stratovirt和virtiofsd，然后导出环境变量stratovirt_BINARY和virtiofsd_BINARY。
+
+构建virtiofsd:  
+
+    git clone https://gitlab.com/virtio-fs/virtiofsd.git
+    cd virtiofsd
+    cargo build --release
+
+设置环境变量STRATOVIRT_BINARY和VIRTIOFSD_BINARY：
+
+    export STRATOVIRT_BINARY="/path/to/stratovirt"
+    export VIRTIOFSD_BINARY="/path/to/virtiofsd"
+
+运行Mod test:`cargo test --all-features -p mod_test -- --nocapture --test-threads=1`
+### hypervisor test
+首先构建相关的依赖：  
+```
+yum install nmap
+yum install iperf3
+yum install bridge-utils
+```
+通常，必须为测试用例配置内核和rootfs镜像。可参考[boot_guide](https://github.com/openeuler-mirror/stratovirt/blob/master/docs/boot.md)创建内核和rootfs镜像，也可通过以下的shell脚本获取内核二进制和rootfs镜像:  
+```
+arch=`uname -m`
+dest_kernel="vmlinux.bin"
+dest_rootfs="rootfs.ext4"
+image_bucket_url="https://repo.openeuler.org/openEuler-22.03-LTS/stratovirt_img"
+
+if [ ${arch} = "x86_64" ] || [ ${arch} = "aarch64" ]; then
+    kernel="${image_bucket_url}/${arch}/vmlinux.bin"
+    rootfs="${image_bucket_url}/${arch}/openEuler-22.03-LTS-stratovirt-${arch}.img.xz"
+else
+    echo "Cannot run StratoVirt on ${arch} architecture!"
+    exit 1
+fi
+
+echo "Downloading $kernel..."
+wget ${kernel} -O ${dest_kernel} --no-check-certificate
+
+echo "Downloading $rootfs..."
+wget ${rootfs} -O ${dest_rootfs}.xz --no-check-certificate
+xz -d ${dest_rootfs}.xz
+
+echo "kernel file: ${dest_kernel} and rootfs image: ${dest_rootfs} download over."
+```
+获取镜像后在config/config.ini中设置参数和相应的路径。  
+设置镜像路径：  
+```
+[env.params]
+...
+VM_USERNAME = <usrname>
+VM_PASSWORD = <passwd>
+...
+[stratovirt.params]
+...
+STRATOVIRT_VMLINUX = /path/to/kernel
+STRATOVIRT_ROOTFS = /path/to/rootfs
+...
+```
+配置网络在“config.ini”文件中配置IP_PREFIX和IP_3RD，它们指示VM IPv4地址的前24位，最后8位由Hydroper自动配置。其中虚拟机和主机必须位于同一网段中：  
+```
+[network.params]
+# such as 'IP_PREFIX.xxx.xxx'
+IP_PREFIX = 1.1
+# such as 'xxx.xxx.IP_3RD.xxx'
+IP_3RD = 1
+```
+通过`pytest`命令执行测试。
+### 测试结果
+Mod test测试结果如下：
+| Test Name | Status | Run Details |
+| - | - | - |
+| balloon_test | 2 passed; 13 failed | `eline366` ; Failed to open /dev/kvm: Error(13) |
+| block_test | 0 passed; 21 failed | `eline366` ; Failed to open /dev/kvm: Error(13) |
+| fwcfg_test | 0 passed; 15 failed | `eline366` ; Failed to open /dev/kvm: Error(13) |
+| memory_test | 0 passed; 14 failed | `eline366` ; Failed to open /dev/kvm: Error(13) |
+| net_test | 0 passed; 14 failed | `eA` |
+| pci_test | 0 passed; 40 failed | `eline366` ; Failed to open /dev/kvm: Error(13) |
+| pvpanic_test | 0 passed; 3 failed | `eline366`; Failed to open /dev/kvm: Error(13) |
+| rng_test | 0 passed; 5 failed | `eline366` ; Failed to open /dev/kvm: Error(13) |
+| scream_test | 0 passed; 4 failed | `eline366` ; Failed to open /dev/kvm: Error(13) |
+| scsi_test | 0 passed; 14 failed | `eline 116` |
+| serial_test | 0 passed; 7 failed | `eline366` ; Failed to open /dev/kvm: Error(13) |
+| usb_camera_test | 0 passed; 8 failed | `eline366`; Found argument '-cameradev' which wasn't expected, or isn't valid in the context. ; Failed to open log file /var/log/mst.log |
+| usb_storage_test | 0 passed; 15 failed | `eline366` ; Permission denied (os error 13) Failed to open log file /var/log/mst.log |
+| usb_test | 0 passed; 43 failed | `eline366` ; Permission denied (os error 13) Failed to open log file /var/log/mst.log |
+| virtio_gpu_test | 0 passed; 12 failed | `eline366` |
+| virtio_test | 0 passed; 28 failed | `eline366` ; Failed to open /dev/kvm: Error(13) |
+| virtiofs_test | 0 passed; 25 failed | `eB` |
+| vnc_test | 0 passed; 9 failed | `eline366` ; Found argument '-vnc' which wasn't expected, or isn't valid in the context. |
+<!-- |  |  |  | -->
+测试大多失败了，经分析失败原因为权限不足。由于StratoVirt的Mod test会频繁访问/dev/kvm，需要root权限支持，尝试了`sudo setfacl -m u:${USER}:rw /dev/kvm`命令，但不知为何仅允许用户单次访问，故测试无法进行下去。
+
+hypervisor测试过程中出现未知原因导致了服务器网络故障，故后续测试没有进行下去。
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