Le mar. 6 avr. 2021 à 20:03, Heinrich Schuchardt <xypron.g...@gmx.de> a écrit :
> On 4/6/21 4:34 PM, François Ozog wrote: > > Hi > > > > following a mail discussion on trusted-firmware A we will have a > discussion > > on HOBs during this week's Trusted Substrate > > <http://trusted-substrate.org>architecture > > council call <https://linaro-org.zoom.us/j/94563644892>. > > > > In addition to mail thread, here is a deck > > < > https://docs.google.com/presentation/d/1KyqkyqoGXHUynZSI2hRFBoO_P7sFwgUJWhjW-Vm2SNk/edit?usp=sharing > > > > I'll use to start things up. > > > > Cheers > > > > FF > > > > Dear François, > > as long as TF-A uses HOB structures only internally I am not worried. > > But when it comes to the interface to other parts of the firmware we > should avoid creating multiple parallel interfaces. > > The interface between secure firmware and U-Boot is not ARM specific but > also exists on RISC-V. Both on ARM and RISC-V we currently use > device-trees to transfer system information. as far as I can see this is a possibility but not a generalized method across all platforms. I wish we could find something standard. > I am missing this on your > slide 2 "Overall picture for the discussion". > > I cannot see anything stopping TF-A from packaging the information that > you want to transfer into the device-tree instead of a > EFI_HOB_RESOURCE_DESCRIPTOR. > That is certainly a good method. That DT can even be embedded into a GUID hob. > > From the U-Boot side I consider this as the preferred solution. That is a very valid one. But need consensus. Also the scope and bindings need to be clearly defined > > > Best regards > > Heinrich > _______________________________________________ > boot-architecture mailing list > boot-architecture@lists.linaro.org > https://lists.linaro.org/mailman/listinfo/boot-architecture > -- François-Frédéric Ozog | *Director Linaro Edge & Fog Computing Group* T: +33.67221.6485 francois.o...@linaro.org | Skype: ffozog _______________________________________________ boot-architecture mailing list boot-architecture@lists.linaro.org https://lists.linaro.org/mailman/listinfo/boot-architecture
