On Thu, 19 Jan 2023 at 12:56, Marc Zyngier <m...@kernel.org> wrote: > > On Thu, 19 Jan 2023 11:11:34 +0000, > Ard Biesheuvel <a...@kernel.org> wrote: > > > > (cc Marc) > > > > Context: > > - on my TX2 (with the S1PTW r/o memslot fix applied), the new version > > of ArmVirtQemu that uses an initial ID map in emulated NOR flash works > > fine. > > - in Oliver's case (which is a slightly different flavor of TX2), it > > crashes extremely early, presumably at the point where this ID map is > > activated. > > Oliver seems to have a vintage ThunderX (aka the worst arm64 > implementation in history!), so it is indeed a very different beat > from TX2. >
No, it's a TX2 alright - we disabled this ID map for TX1 already because it tickles the I-cache corruption erratum (EDK2 runs at EL1 and the initial ID map is ASID scoped with non-global mappings, so that we can switch to the actual ID map seamlessly) > Without the kernel patch[1], I can trigger the issue pretty reliably, > specially in the absence of THP. It all depends on the layout of the > EDK2 object and the order in which pages get mapped. > > The first course of action would be to make sure that the patch is > applied to the host kernel. If this still fails to boot, I'm happy to > help investigating it. > indeed. -=-=-=-=-=-=-=-=-=-=-=- Groups.io Links: You receive all messages sent to this group. View/Reply Online (#98896): https://edk2.groups.io/g/devel/message/98896 Mute This Topic: https://groups.io/mt/96075174/21656 Group Owner: devel+ow...@edk2.groups.io Unsubscribe: https://edk2.groups.io/g/devel/unsub [arch...@mail-archive.com] -=-=-=-=-=-=-=-=-=-=-=-
