[coreboot] microcode updates
yinghailu at gmail.com
Tue Jul 8 20:20:03 CEST 2014
On Tue, Jul 8, 2014 at 10:39 AM, ron minnich <rminnich at gmail.com> wrote:
> you can no longer update microcode after the kernel boots (on modern Intel
> CPUs). It has to happen before you do Cache As Ram in many cases, or you'll
> get some pretty unpleasant consequences.
so even microcode_early will not help?
bool "Early load microcode"
depends on MICROCODE=y && BLK_DEV_INITRD
select MICROCODE_INTEL_EARLY if MICROCODE_INTEL
select MICROCODE_AMD_EARLY if MICROCODE_AMD
This option provides functionality to read additional microcode data
at the beginning of initrd image. The data tells kernel to load
microcode to CPU's as early as possible. No functional change if no
microcode data is glued to the initrd, therefore it's safe to say Y.
More information about the coreboot