15 enum BootProtocol {  enum
23 impl TryFrom<u64> for BootProtocol {  implementation
28             BOOT_ENTRY_TYPE_MULTIBOOT => Ok(BootProtocol::Multiboot),  in try_from()
29             BOOT_ENTRY_TYPE_MULTIBOOT2 => Ok(BootProtocol::Multiboot2),  in try_from()
30             BOOT_ENTRY_TYPE_LINUX_32 => Ok(BootProtocol::Linux32),  in try_from()
31             BOOT_ENTRY_TYPE_LINUX_64 => Ok(BootProtocol::Linux64),  in try_from()
32             BOOT_ENTRY_TYPE_LINUX_32_PVH => Ok(BootProtocol::Linux32Pvh),  in try_from()
44     let boot_protocol = BootProtocol::try_from(boot_entry_type)?;  in early_boot_init()
46         BootProtocol::Multiboot2 => early_multiboot2_init(arg1 as u32, arg2),  in early_boot_init()
47         BootProtocol::Linux32 | BootProtocol::Linux64 | BootProtocol::Multiboot => loop {  in early_boot_init()
50         BootProtocol::Linux32Pvh => early_linux32_pvh_init(arg2 as usize),  in early_boot_init()