[External] Re: [PATCH v2 1/3] riscv: obtain ACPI RSDP from FFI.

[Emil Renner Berthing]

On Mon, 3 Jul 2023 at 15:33, 运辉崔 <cuiyunhui at bytedance.com> wrote:
>
> Hi drew,
>
> On Mon, Jul 3, 2023 at 9:01 PM Andrew Jones <ajones at ventanamicro.com> wrote:
> >
> >
> > (This is a reply to a non-existent cover letter.)
>
> This has been discussed many times with Ard, Please refer to :
> https://patches.linaro.org/project/linux-acpi/patch/20230426034001.16-1-cuiyunhui@bytedance.com/

Hi Yunhui,

>From that discussion it was mentioned that that arm supports 3 methods
of booting:
  direct + devicetree
  EFI + devicetree
  EFI + ACPI
..but not
  direct + ACPI

To me it isn't obvious from that or this thread, and since arm seems
to be doing fine without the 4th option I'm curious why that's
necessary on riscv?

> > I'm not a big fan of adding yet another interface. Have you considered
> > doing something like [1]?
> >
> > [1] https://github.com/tianocore/tianocore.github.io/wiki/UefiPayloadPkg

Also you didn't answer this question, which I'd also like to hear a reply to.

/Emil

> > Thanks,
> > drew
>
> Thanks,
> Yunhui
>
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