On 2023-08-21 18:24, Jing Zhang wrote:
On Thu, Aug 17, 2023 at 7:00 AM Marc Zyngier <maz@xxxxxxxxxx> wrote:
On Thu, 17 Aug 2023 09:16:56 +0100,
Cornelia Huck <cohuck@xxxxxxxxxx> wrote:
>
> On Mon, Aug 14 2023, Jing Zhang <jingzhangos@xxxxxxxxxx> wrote:
>
> > Maybe it'd be better to leave this to whenever we do need to add other
> > range support?
>
> My point is: How does userspace figure out if the kernel that is running
> supports ranges other than id regs? If this is just an insurance against
> changes that might arrive or not, we can live with the awkward "just try
> it out" approach; if we think it's likely that we'll need to extend it,
> we need to add the mechanism for userspace to find out about it now, or
> it would need to probe for presence of the mechanism...
Agreed. Nothing like the present to address this sort of things. it
really doesn't cost much, and I'd rather have it right now.
Here's a vague attempt at an advertising mechanism. If people are OK
with it, I can stash that on top of Jing's series.
[...]
Looks good to me.
Well, that's of course conditional on the other comments
I made against this series. And we're seriously running
out of time...
M.
--
Jazz is not dead. It just smells funny...
