16.04.2016 02:18, Guido Trentalancia пишет:
> This is the initial version of a new "microcode" dracut module
> that can be used to update the microcode on Intel(R) CPUs.
>
??? dracut already supports early microcode loading, why it is not
enough and what problem this patch solves?
> Signed-off-by: Guido Trentalancia <guido@xxxxxxxxxxxxxxxx>
> ---
> modules.d/00microcode/module-setup.sh | 26 ++++++++++++++++++++++++++
> modules.d/99base/init.sh | 9 +++++++++
> 2 files changed, 35 insertions(+)
>
> diff -pruN dracut-git/modules.d/00microcode/module-setup.sh dracut-git-microcode-update/modules.d/00microcode/module-setup.sh
> --- dracut-git/modules.d/00microcode/module-setup.sh 1970-01-01 01:00:00.000000000 +0100
> +++ dracut-git-microcode-update/modules.d/00microcode/module-setup.sh 2016-04-16 01:11:20.719287468 +0200
> @@ -0,0 +1,26 @@
> +#!/bin/bash
> +
> +# Dracut module to update the microcode on Intel(R) CPUs
> +# Copyright 2016 Guido Trentalancia <guido@xxxxxxxxxxxxxxxx>
> +
> +# called by dracut
> +check() {
> + [[ "$mount_needs" ]] && return 1
> +
> + require_binaries microcode_ctl || return 1
> +
> + return 0
> +}
> +
> +# called by dracut
> +depends() {
> + return 0
> +}
> +
> +# called by dracut
> +install() {
> + inst microcode_ctl
> +
> + inst_dir /lib/firmware
> + inst /lib/firmware/microcode.dat
> +}
> diff -pruN dracut-git/modules.d/99base/init.sh dracut-git-microcode-update/modules.d/99base/init.sh
> --- dracut-git/modules.d/99base/init.sh 2016-04-14 22:21:22.681548895 +0200
> +++ dracut-git-microcode-update/modules.d/99base/init.sh 2016-04-16 01:09:58.517080944 +0200
> @@ -62,6 +62,15 @@ if ! ismounted /dev/shm; then
> mount -t tmpfs -o mode=1777,noexec,nosuid,nodev,strictatime tmpfs /dev/shm >/dev/null
> fi
>
> +# Update CPU microcode
> +if [ -x /usr/sbin/microcode_ctl ]; then
> + MICROCODE_CTL=/usr/sbin/microcode_ctl
> +elif [ -x /sbin/microcode_ctl ]; then
> + MICROCODE_CTL=/sbin/microcode_ctl
> +fi
> +[ $MICROCODE_CTL ] && [ ! -e /dev/cpu/microcode ] && echo "Creating microcode update device..." && mknod /dev/cpu/microcode c 10 184
> +[ $MICROCODE_CTL ] && [ -e /lib/firmware/microcode.dat ] && $MICROCODE_CTL -u
> +
> if ! ismounted /run; then
> mkdir -m 0755 /newrun
> if ! str_starts "$(readlink -f /bin/sh)" "/run/"; then
> --
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