Re: [PATCH v2 2/7] RISC-V: Detect AIA CSRs from ISA string

From: Conor Dooley
Date: Tue Feb 21 2023 - 05:41:17 EST


Hey Christoph,

On Tue, Feb 21, 2023 at 08:12:58AM +0100, Christoph Müllner wrote:
> Hi all,
>
> The RISC-V Architectural Review Committee has discussed the concerns
> regarding the non-ratified chapters in the AIA specification.

Thanks for the update!

> Here is the relevant quote from the meeting minutes:
> """
> Although the Advanced Interrupt Architecture (AIA) has already passed
> Architecture Review (with a minor edit still pending), the committee
> has some suggestions about its final steps to ratification, to avoid
> the AIA document having a mixture of ratified and non-ratified content:

> - The AIA document's remaining draft chapter on the Duo-PLIC, which is
> not currently on a path to ratification, can be removed to a separate
> document.

That sounds promising...

> - Ratification of the full AIA (without Duo-PLIC) can be postponed to
> coincide with ratification of the IOMMU specification, given that
> the latter is now expected in a reasonable time, and the AIA's last
> chapter concerning IOMMUs is already scheduled to go through public
> review and be ratified only together with the IOMMU specification.
> """

...and so does this. AIA stuff's acceptability only depending on the
IOMMU spec's freeze (and thus Chapter 9's) seems like a vast improvement
on the status quo to me!

> The full meeting minutes can be found here:
> https://lists.riscv.org/g/tech-chairs/message/1381

This link is non functional unfortunately :/

Cheers,
Conor.

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