[coreboot] microcode updates

[yhlu]

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?

config MICROCODE_EARLY
        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
        default y
        help
          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.