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Re: [Qemu-devel] [Qemu-arm] [PATCH] target-arm: Declare virtio-mmio as d

From: Laszlo Ersek
Subject: Re: [Qemu-devel] [Qemu-arm] [PATCH] target-arm: Declare virtio-mmio as dma-coherent in dt
Date: Wed, 8 Feb 2017 19:47:33 +0100
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.7.0

On 02/08/17 19:23, Peter Maydell wrote:
> On 8 February 2017 at 16:27, Ard Biesheuvel <address@hidden> wrote:
>> The _CCA property is mandatory on arm64, and there is no default.
> Is there a tool that can check this kind of requirement
> and complain about issues in the ACPI tables (and
> ditto, device tree)? It's really easy to produce a
> dt or ACPI table that works with current kernels and
> then turns out to have a problem six or twelve
> months down the line :-(

I think the "bios bits" project or the FWTS (firmware test suite)
project might do some ACPI sanity checks. They could be run in guests.


However, I'm unsure if they support aarch64. Also... it's not like those
projects are stationary. Even the ACPI spec is a moving target (and
spec-level regressions exist).

I believe Heyi Guo @ Linaro used to work with FWTS on aarch64. CC'd.

No clue about DT conformance testing. Is there an industry standard or a
working group behind DT?


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