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cleanup elf loader and more work towards boot support

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This commit is contained in:
Alex Zenla
2024-01-10 10:08:39 -08:00
parent 5ff0ea8a1b
commit d46d0cf0c3
7 changed files with 134 additions and 53 deletions
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22
xenclient/examples/boot.rs
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@ -1,4 +1,5 @@
use std::alloc::Layout;
use std::{env, process};
use xencall::domctl::DomainControl;
use xencall::sys::CreateDomain;
use xencall::XenCall;
@ -7,12 +8,27 @@ use xenclient::elfloader::ElfImageLoader;
use xenclient::XenClientError;
fn main() -> Result<(), XenClientError> {
let args: Vec<String> = env::args().collect();
if args.len() != 2 {
println!("usage: boot <kernel-image>");
process::exit(1);
}
let kernel_image_path = args.get(1).expect("argument not specified");
let call = XenCall::open()?;
let domctl = DomainControl::new(&call);
let _domain = domctl.create_domain(CreateDomain::default())?;
let boot = ElfImageLoader::load_file_kernel("/boot/vmlinuz-6.1.0-17-amd64")?;
let domid = domctl.create_domain(CreateDomain::default())?;
let domain = domctl.get_domain_info(domid)?;
println!("domain created: {:?}", domain);
let boot = ElfImageLoader::load_file_kernel(kernel_image_path.as_str())?;
let ptr = unsafe { std::alloc::alloc(Layout::from_size_align(128 * 1024 * 1024, 16).unwrap()) };
let info = boot.load(ptr)?;
println!("{:?}", info);
println!("loaded kernel image into memory: {:?}", info);
// The address calculations don't make sense here and I am certain something
// is wrong up the stack.
// if info.virt_hypercall != XEN_UNSET_ADDR {
// domctl.hypercall_init(domid, info.virt_hypercall)?;
// }
domctl.destroy_domain(domid)?;
println!("domain destroyed: {}", domid);
Ok(())
}