On Mon, Oct 03, 2022 at 05:09:04PM -0700, Dave Hansen wrote: > On 10/3/22 16:57, Kees Cook wrote: > > 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 > > 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> Hey Gustavo, Nathan, or Nick! I know y'all have some fancy AMD testing rigs. Got a moment to spin up this series and run the selftests? :) -- Kees Cook
