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.

ron


On Tue, Jul 8, 2014 at 9:34 AM, Gregg Levine <gregg.drwho8@gmail.com> wrote:
Hello!
No I haven't. But I've known about the Intel Microcode update idea for
about fifteen years. Turns out that the Linux Kernel 2.4.33.2 of
course has it, and described the update process. The two responsible
for that method have been out of business so to speak for a while now.

But according to that site its still being done. Interesting. I do
also know its volatile, in that if the computer gets shutdown and
thence turned off, the feature would need to be flashed back onto its
CPU and so forth.
-----
Gregg C Levine gregg.drwho8@gmail.com
"This signature fought the Time Wars, time and again."


On Tue, Jul 8, 2014 at 12:27 PM, ron minnich <rminnich@gmail.com> wrote:
> I had not seen this, maybe you all have, but:
> http://inertiawar.com/microcode/
>
> ron
>
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> coreboot mailing list: coreboot@coreboot.org
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