Jonathan Gray <jsg@jsg.id.au> wrote:
> On Mon, Jul 24, 2023 at 03:17:26PM -0700, Courtney wrote:
> > $ pkg_info | grep amd
> > amd-firmware-20230719 microcode update binaries for AMD CPUs
>
> It by no means covers all zen 2 models.
^^^
AMD's firmwar updates for the fix are incomplete. Some models won't get
firmware updates until November and December. AMD rates the ability to
observe data over a process or VM boundary as only "medium" severity.
Their customers may have a different opinion...
> An updated kernel will set DE_CFG bit 9 on all Zen2 models,
> which does not require new microcode.
^^^^
Since AMD is too busy twiddling their fingers with the firmware solutions,
we are setting DE_CFG bit 9 _on all the models that we think have the bug_.
Two fixes for the same problem, if you get lucky.
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