Function magenta_sys::mx_vmar_allocate

pub unsafe extern "C" fn mx_vmar_allocate(
    parent_vmar_handle: mx_handle_t, 
    offset: usize, 
    size: usize, 
    map_flags: u32, 
    child_vmar: *mut mx_handle_t, 
    child_addr: *mut usize
) -> mx_status_t