Building drivers
There are three types of UEFI images:
- Application
- Boot service driver
- Runtime driver
By default, Rust's UEFI targets produce applications. This can be
changed by passing a subsystem linker flag in rustflags and setting the
value to efi_boot_service_driver or efi_runtime_driver.
Example:
# In .cargo/config.toml:
[build]
rustflags = ["-C", "link-args=/subsystem:efi_runtime_driver"]