From 546fced2a23557e95dd34246744c3aa6cad92fe6 Mon Sep 17 00:00:00 2001 From: Tomasz Maciej Nowak Date: Tue, 20 Nov 2018 17:20:43 +0100 Subject: x86: add intel microcode entries to grub config Create initrd enries for x86 images, that'll load intel microcode as early as possible. To achieve that the test module for grub is enabled which provides shell-like conditionals. Also restrict the late load of microcode to AMD processors. Signed-off-by: Tomasz Maciej Nowak --- target/linux/x86/base-files/lib/preinit/02_load_x86_ucode | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) (limited to 'target/linux/x86/base-files/lib') diff --git a/target/linux/x86/base-files/lib/preinit/02_load_x86_ucode b/target/linux/x86/base-files/lib/preinit/02_load_x86_ucode index fb309c75c1..d3a23e24b2 100644 --- a/target/linux/x86/base-files/lib/preinit/02_load_x86_ucode +++ b/target/linux/x86/base-files/lib/preinit/02_load_x86_ucode @@ -2,8 +2,10 @@ # 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 + if grep -q AuthenticAMD /proc/cpuinfo; then + if [ -e "/sys/devices/system/cpu/microcode/reload" ]; then + echo 1 > /sys/devices/system/cpu/microcode/reload + fi fi } -- cgit v1.2.3