Shared boot-time support code that lets the Linux kernel image act as an EFI application, so UEFI firmware can load and start the kernel directly without an intermediate bootloader. It runs only during early boot on UEFI systems and is linked into the kernel image itself across architectures like x86, arm64, and riscv.
This is not actually a driver directory; it is the EFI stub library used during kernel startup on UEFI machines. It contains no hardware driver and falls outside the scope of a driver-deprecation review.
repository signals
45files
8,482source lines
229commits, 5y
+5,900 / −3,245lines added / removed, 5y
58authors, 5y
monthly commits · 2021-04-21 → 2026-04-21 · 229 total · active in 49/61 months
sources
No sources cited.
codex reasoning notes (technical)
Not a driver directory: EFI libstub is firmware/boot-time support code used by kernel image startup, not a kernel-bound hardware driver.