[coreboot] microcode updates

ron minnich rminnich at gmail.com
Tue Jul 8 19:39:07 CEST 2014


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 at 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 at gmail.com
> "This signature fought the Time Wars, time and again."
>
>
> On Tue, Jul 8, 2014 at 12:27 PM, ron minnich <rminnich at gmail.com> wrote:
> > I had not seen this, maybe you all have, but:
> > http://inertiawar.com/microcode/
> >
> > ron
> >
> > --
> > coreboot mailing list: coreboot at coreboot.org
> > http://www.coreboot.org/mailman/listinfo/coreboot
>
> --
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>
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