libreboot will still include microcode updates
by default, but mitigations against broken speedstep
and reboot (when microcode updates are excluded) were
removed following the merge with osboot
this patch restores those mitigations; the patch
reverts coreboot to older smrr code (which works fine, it
isn't critical to use the new behaviour) and disables peci
(pointless feature)
i'll probably re-tool this later to apply the changes
conditionally to whether ucode is present
this is not a change in policy. policy says:
include cpu microcode updates by default
policy also says:
libreboot must be configurable
microcode removal via cbfstool remove -n, counts as
configuration, and in practise is not possible on
gm45 patches in current libreboot; this patch corrects
that problem, allowing the machines to work somewhat
well (same stability issues as before, like MCE errors
resulting in kernel panic on high CPU/memory usage,
but i digress)
happy... hacking
Leah Rowe
bd4ea9a028