Hi Conor, > -----Original Message----- > From: Conor Dooley <conor@xxxxxxxxxx> > Sent: Tuesday, December 19, 2023 5:18 PM > To: Conor Dooley <conor.dooley@xxxxxxxxxxxxx> > Cc: Lad, Prabhakar <prabhakar.csengg@xxxxxxxxx>; Palmer Dabbelt <palmer@xxxxxxxxxxx>; > geert+renesas@xxxxxxxxx; Atish Patra <atishp@xxxxxxxxxxxx>; Paul Walmsley <paul.walmsley@xxxxxxxxxx>; > apatel@xxxxxxxxxxxxxxxx; alexghiti@xxxxxxxxxxxx; Bjorn Topel <bjorn@xxxxxxxxxxxx>; > suagrfillet@xxxxxxxxx; jeeheng.sia@xxxxxxxxxxxxxxxx; petrtesarik@xxxxxxxxxxxxxxx; linux- > riscv@xxxxxxxxxxxxxxxxxxx; linux-kernel@xxxxxxxxxxxxxxx; stable@xxxxxxxxxxxxxxx; Prabhakar Mahadev Lad > <prabhakar.mahadev-lad.rj@xxxxxxxxxxxxxx> > Subject: Re: [RFT 1/2] RISC-V: handle missing "no-map" properties for OpenSBI's PMP protected regions > > Hey, > > On Thu, Dec 07, 2023 at 01:11:23PM +0000, Conor Dooley wrote: > > On Thu, Dec 07, 2023 at 01:02:00PM +0000, Lad, Prabhakar wrote: > > > On Wed, Dec 6, 2023 at 2:26 PM Conor Dooley <conor@xxxxxxxxxx> wrote: > > > > On Wed, Dec 06, 2023 at 04:52:11AM -0800, Palmer Dabbelt wrote: > > > > > On Thu, 10 Aug 2023 02:07:10 PDT (-0700), Conor Dooley wrote: > > > > > > > > I'm perfectly happy to drop this series though, if people > > > > > > generally are of the opinion that this sort of firmware workaround is ill-advised. > > > > > > We are unaffected by it, so I certainly have no pressure to > > > > > > have something working here. It's my desire not to be > > > > > > user-hostile that motivated this patch. > > > > > > > > > > IIUC you guys and Reneas are the only ones who have hardware > > > > > that might be in a spot where users aren't able to update the > > > > > firmware (ie, it's out in production somewhere). > > > > > > > > I dunno if we can really keep thinking like that though. In terms > > > > of people who have devicetrees in the kernel and stuff available > > > > in western catalog distribution, sure. > > > > I don't think we can assume that that covers all users though, > > > > certainly the syntacore folks pop up every now and then, and I > > > > sure hope that Andes etc have larger customer bases than the > > > > in-kernel users would suggest. > > > > > > > > > So I'm adding Geert, though he probably saw this months ago... > > > > > > > > Prabhakar might be a good call on that front. I'm not sure if the > > > > Renesas stuff works on affected versions of OpenSBI though, guess > > > > it depends on the sequencing of the support for the non-coherent > > > > stuff and when this bug was fixed. > > > > > > > ATM, I dont think there are any users who are using the upstream > > > kernel + OpenSBI (apart from me and Geert!). Currently the customers > > > are using the BSP releases. > > > > That doesn't really answer whether or not you (and your customers) are > > using an affected version of the vendor OpenSBI? > > The affected range for OpenSBI itself is [v0.8 to v1.3). > > Did you perhaps miss this mail Prabhakar? > Oops sorry for that. I can confirm the BSP version used by the customers is v1.0 [0]. [0] https://github.com/renesas-rz/rz_opensbi/commits/work/OpenSBI-PMA/ Cheers, Prabhakar
