On Fri, Feb 11, 2022 at 8:21 AM Bill Mills <bill.mi...@linaro.org> wrote: > > Rob, > > Can you confirm for the DT call on Feb 21?
I'm on holiday on the 21st. > > Oliver, > > On 2/11/22 4:54 AM, Olivier Masse wrote: > > Hi Bill, > > > > NXP had a discussion with Linaro about this optee os issue: > > https://github.com/OP-TEE/optee_os/issues/5133 > > > > Which is implemented by this first draft here: > > https://github.com/OP-TEE/optee_os/pull/5149 > > > > Could we be part of the next Device Tree call to discuss about adding > > a reserved memory in optee os embedded DT ? > > > > Thanks for bringing it up. > I have skimmed the PR threads and the discussion seems to be: > 1) OP-TEE internal issues > 2) DT standards questions and issues > > For the DT call we need to focus on #2 above. > We will definitely need Rob for this discussion so we need to do it when > he can join. (If we don't resolve the question in this email thread > before then.) > > Context for all: > > SDP here is related to DRM protected playback of media streams. > > Jens comment in PR: > > So far we have managed to avoid defining our own bindings in OP-TEE, > > instead we've been able to reuse already established bindings. With > > this you're proposing something new. I'm not sure of the best way of > > doing such a thing. Are we sure there is nothing to reuse? > > If not: How should it be reviewed? Who should review it? > > DTS in PR: > /* > * Copyright (c) 2021, NXP. All rights reserved. > * > * SPDX-License-Identifier: BSD-3-Clause > */ > > /dts-v1/; > > / { > #address-cells = <1>; > #size-cells = <0>; > > reserved-memory { > #address-cells = <1>; > #size-cells = <1>; > > sdp_mem { > compatible = "optee-sdp"; > reg = <0x3E800000 0x00400000>; > }; > }; > }; > > However it was modified after that. > > Oliver: please reply to this thread (on list please) with the final DTS > you are proposing. fix DT conventions and what are you doing with the > no-map property if anything. > > Is the memory above meant to be visible to NS world AND S world? Or is > just for secure world. > > Thanks, > Bill > > > Best regards, > > Olivier Masse > > -- > Bill Mills > Principal Technical Consultant, Linaro > +1-240-643-0836 > TZ: US Eastern > Work Schedule: Tues/Wed/Thur > _______________________________________________ > boot-architecture mailing list -- boot-architecture@lists.linaro.org > To unsubscribe send an email to boot-architecture-le...@lists.linaro.org _______________________________________________ boot-architecture mailing list -- boot-architecture@lists.linaro.org To unsubscribe send an email to boot-architecture-le...@lists.linaro.org
