Re: [PATCH] docs: Document a policy for when to deviate from specifications

[Julien Grall <julien@xxxxxxx>]

Hi George,

Sorry for the late reply.

On 18/09/2023 13:28, George Dunlap wrote:
> There is an ongoing disagreement among maintainers for how Xen should
> handle deviations to specifications such as ACPI or EFI.
>
> Write up an explicit policy, and include two worked-out examples from
> recent discussions.
NIT: For a more balanced arguments, it would have been good to have one 
example where Xen decides to not accept a deviationg from the spec.
Anyway...

> Signed-off-by: George Dunlap <george.dunlap@xxxxxxxxx>
... your proposal makes sense to me. So with one typo below:

Acked-by: Julien Grall <jgrall@xxxxxxxxxx>

> +## Calling EFI Reboot method
> +
> +One interpretation of the EFI spec is that operating systems should
> +call the EFI ResetSystem method in preference to the ACPI reboot
> +method.
> +
> +However, although the ResetSystem method is required by the EFI spec,
> +a large number of different systems doesn't actully work, at least
Typo: s/actully/actually/

> +when called by Xen: a large number of systems don't cleanly reboot
> +after calling the EFI REBOOT method, but rather crash or fail in some
> +other random way.
Cheers,

--
Julien Grall