[PATCH v8 02/11] KVM: arm64: Document KVM_ARM_GET_REG_WRITABLE_MASKS

[Marc Zyngier]

On 2023-08-21 18:24, Jing Zhang wrote:
> On Thu, Aug 17, 2023 at 7:00 AM Marc Zyngier <maz at kernel.org> wrote:
>> 
>> On Thu, 17 Aug 2023 09:16:56 +0100,
>> Cornelia Huck <cohuck at redhat.com> wrote:
>> >
>> > On Mon, Aug 14 2023, Jing Zhang <jingzhangos at google.com> 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...