x86: add preinit hook to reload microcode

Signed-off-by: Zoltan HERPAI <wigyori@uid0.hu>
2018-02-10 19:16:37 +01:00 · 2018-02-10 19:16:37 +01:00 · 571d3def6b
parent 681aaaf719
commit 571d3def6b
1 changed files with 10 additions and 0 deletions
--- a/target/linux/x86/base-files/lib/preinit/02_load_x86_ucode
+++ b/target/linux/x86/base-files/lib/preinit/02_load_x86_ucode
@ -0,0 +1,10 @@
+#!/bin/sh
+# Copyright (C) 2018 OpenWrt.org
+
+do_load_x86_ucode() {
+	if [ -e "/sys/devices/system/cpu/microcode/reload" ]; then
+		echo 1 > /sys/devices/system/cpu/microcode/reload
+	fi
+}
+
+boot_hook_add preinit_main do_load_x86_ucode