Re: [PATCH v2 33/39] x86/cpufeatures: Limit shadow stack to Intel CPUs

From: Kees Cook
Date: Mon Oct 03 2022 - 19:57:48 EST

On Thu, Sep 29, 2022 at 03:29:30PM -0700, Rick Edgecombe wrote:
> Shadow stack is supported on newer AMD processors, but the kernel
> implementation has not been tested on them. Prevent basic issues from
> showing up for normal users by disabling shadow stack on all CPUs except
> Intel until it has been tested. At which point the limitation should be
> removed.
> Signed-off-by: Rick Edgecombe <rick.p.edgecombe@xxxxxxxxx>

So running the selftests on an AMD system is sufficient to drop this

Kees Cook