>
> Early 16h systems (Jaguar) are safe because they don't have a
> PSP
Safe yes, but not helpful in coming to grips with the PSP.
> > On Sun, Feb 17, 2019 at 12:18 AM Matt B
> wrote:
> >
> > As for the patching, afaik AMD has released patches for all of these,
> but I haven't seen any patches
On Sun, Feb 17, 2019 at 8:47 AM Mike Banon wrote:
> Hi,
Almost all the coreboot-supported AMD 16h boards are AMD _early_ 16h
> (so no PSP). Please tell what 16h systems do you have, maybe they
> don't have a PSP at all?
>
>
Well pcengines/apu2 variants are fam16h model30h with PSP.
I have done
Hi,
On Sun, Feb 17, 2019 at 12:18 AM Matt B wrote:
>
> It's somewhat unclear form the slides, but it looks like these target the 17h
> (ryzen) psp. Do the same exploits also affect earlier versions?
>
I think these attacks are possible because of the general flaws at PSP
architecture, so yes th
This fairly interesting stuff. With the fairly wide range of attacks
(arbitrary code execution and faking signatures for modules) maybe some
sort of runtime "psp-cleaner" might be possible, but it would probably be a
crushingly difficult undertaking.
It's somewhat unclear form the slides, but it l
Hi Shawn, thank you for the message! Luckily almost all the
coreboot-supported AMD boards don't contain the PSP inside their CPUs
- maybe because PSP got added to AMD much later than ME got added to
Intel. Only a few AMD boards, starting with "late 16h" architecture
(early 16h is fine) have the PSP
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