Struct linux_loader::configurator::pvh::PvhBootConfigurator

pub struct PvhBootConfigurator {}

Available on (x86 or x86-64) and (crate features elf or pe or bzimage) only.

Boot configurator for the PVH boot protocol.

Trait Implementations

impl BootConfigurator for PvhBootConfigurator

Available on crate features elf or bzimage only.

fn write_bootparams<M>(params: &BootParams, guest_memory: &M) -> Result<()>

where M: GuestMemory,

Writes the boot parameters (configured elsewhere) into guest memory.

Arguments

• params - boot parameters. The header contains a hvm_start_info struct. The sections contain the memory map in a vector of hvm_memmap_table_entry structs. The modules, if specified, contain hvm_modlist_entry structs.
• guest_memory - guest’s physical memory.

Examples

fn create_guest_memory() -> GuestMemoryMmap {
    GuestMemoryMmap::from_ranges(&[(GuestAddress(0x0), (MEM_SIZE as usize))]).unwrap()
}

fn build_boot_params() -> (hvm_start_info, Vec<hvm_memmap_table_entry>) {
    let mut start_info = hvm_start_info::default();
    let memmap_entry = hvm_memmap_table_entry {
        addr: 0x7000,
        size: 0,
        type_: E820_RAM,
        reserved: 0,
    };
    start_info.magic = XEN_HVM_START_MAGIC_VALUE;
    start_info.version = 1;
    start_info.nr_modules = 0;
    start_info.memmap_entries = 0;
    (start_info, vec![memmap_entry])
}

fn main() {
    let guest_mem = create_guest_memory();
    let (mut start_info, memmap_entries) = build_boot_params();
    let start_info_addr = GuestAddress(0x6000);
    let memmap_addr = GuestAddress(0x7000);
    start_info.memmap_paddr = memmap_addr.raw_value();

    let mut boot_params = BootParams::new::<hvm_start_info>(&start_info, start_info_addr);
    boot_params.set_sections::<hvm_memmap_table_entry>(&memmap_entries, memmap_addr);
    PvhBootConfigurator::write_bootparams::<GuestMemoryMmap>(&boot_params, &guest_mem).unwrap();
}