Intel Microcode
From Gentoo Linux Wiki
Modern processors ships with some kind of microcode inside the chips. There is a way for Intel's IA32 processors (all x86 and x86_64 processors) to update this microcode to workaround processor bugs.
[edit] Kernel support
| Linux Kernel Configuration: |
Processor type and features --->
<M> /dev/cpu/microcode - Intel IA32 CPU microcode support
|
[edit] Userland support
Now install sys-apps/microcode-ctl:
emerge -av microcode-ctl
and update your microcode:
/etc/init.d/microcode_ctl start
Because the updated microcode can't be saved in the processor, you have to update the microcode on each boot. So just add microcode_ctl to your rc:
rc-update add microcode_ctl default
