lucascs@protonmail.com Lucas Couto Microcode update data for Intel IA32/IA64 processors, as published by Intel in the Linux Processor Microcode Data Files repository. The microcode is applied by the CPU at boot (early, from an initramfs or through the kernel's split-ucode loader) and carries errata and security fixes that cannot be delivered any other way. With USE=-vanilla the package additionally installs microcodes from the community-maintained intel-microcode-collection snapshot, which contains revisions Intel never shipped in its own tarball. iucode_tool merges both sources and keeps only the newest revision per CPU signature. This overlay carries the package because the ::gentoo copy lags the Intel release by months; the ebuild is otherwise identical in behaviour. Delegate microcode initramfs generation to sys-kernel/installkernel Install a small initramfs for use with CONFIG_MICROCODE_EARLY Only install ucode(s) supported by currently available (=online) processor(s) Install the split binary ucode files (used by the kernel directly) Only install microcode updates from Intel's official microcode tarball https://github.com/intel/Intel-Linux-Processor-Microcode-Data-Files/issues intel/Intel-Linux-Processor-Microcode-Data-Files platomav/CPUMicrocodes