feat(xen): update xenclient and xenplatform to the latest structure (#433)

crates/xen/xenclient/examples/boot_speed.rs

@@ -0,0 +1,66 @@
+use std::sync::Arc;
+use std::{env, process};
+use tokio::fs;
+use uuid::Uuid;
+use xenclient::config::{DomainConfig, DomainResult};
+use xenclient::error::Result;
+use xenclient::tx::channel::ChannelDeviceConfig;
+use xenclient::XenClient;
+use xenplatform::domain::{
+    KernelFormat, PlatformDomainConfig, PlatformKernelConfig, PlatformOptions,
+    PlatformResourcesConfig,
+};
+use xenplatform::elfloader::ElfImageLoader;
+use xenplatform::RuntimePlatformType;
+
+#[tokio::main]
+async fn main() -> Result<()> {
+    env_logger::init();
+
+    let args: Vec<String> = env::args().collect();
+    if args.len() != 2 {
+        println!("usage: boot-speed <kernel-image>");
+        process::exit(1);
+    }
+    let kernel_path = args.get(1).expect("argument not specified");
+    let kernel = Arc::new(fs::read(kernel_path).await?);
+    let kernel = ElfImageLoader::load(kernel)?.into_elf_bytes();
+    let client = XenClient::new().await?;
+
+    for i in 0..5u32 {
+        let start = std::time::Instant::now();
+        let domain = create_domain(&client, kernel.clone(), i).await?;
+        let end = std::time::Instant::now();
+        let duration = end - start;
+        println!("boot setup time: {:?}", duration);
+        client.destroy(domain.platform.domid).await?;
+    }
+    Ok(())
+}
+
+async fn create_domain(client: &XenClient, kernel: Arc<Vec<u8>>, i: u32) -> Result<DomainResult> {
+    let mut config = DomainConfig::new();
+    config.platform(PlatformDomainConfig {
+        uuid: Uuid::new_v4(),
+        platform: RuntimePlatformType::Pv,
+        kernel: PlatformKernelConfig {
+            data: kernel,
+            format: KernelFormat::ElfUncompressed,
+            cmdline: "earlyprintk=xen earlycon=xen console=hvc0 init=/init".to_string(),
+            initrd: None,
+        },
+        resources: PlatformResourcesConfig {
+            max_vcpus: 1,
+            assigned_vcpus: 1,
+            max_memory_mb: 512,
+            assigned_memory_mb: 512,
+        },
+        options: PlatformOptions { iommu: true },
+    });
+    config.name(format!("xenboot-{}", i));
+    config.start(false);
+    let mut channel = ChannelDeviceConfig::new();
+    channel.default_console().backend_initialized();
+    config.add_channel(channel);
+    client.create(config).await
+}