On 10/3/22 16:57, Kees Cook wrote:

On Thu, Sep 29, 2022 at 03:29:30PM -0700, Rick Edgecombe wrote:

quoted

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@intel.com>

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

Yes, that's enough.

I _thought_ the AMD folks provided some tested-by's at some point in the
past.  But, maybe I'm confusing this for one of the other shared
features.  Either way, I'm sure no tested-by's were dropped on purpose.

I'm sure Rick is eager to trim down his series and this would be a great
patch to drop.  Does anyone want to make that easy for Rick?

<hint> <hint>