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Re: [PATCH v2 2/2] xen/include/public: deprecate GNTTABOP_transfer
- To: Julien Grall <julien@xxxxxxx>
- From: Jan Beulich <jbeulich@xxxxxxxx>
- Date: Fri, 25 Feb 2022 09:12:32 +0100
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- Cc: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>, George Dunlap <george.dunlap@xxxxxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, Wei Liu <wl@xxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxxx, Juergen Gross <jgross@xxxxxxxx>
- Delivery-date: Fri, 25 Feb 2022 08:12:45 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 24.02.2022 23:55, Julien Grall wrote:
> On 16/02/2022 09:29, Jan Beulich wrote:
>> On 16.02.2022 08:20, Juergen Gross wrote:
>>> On 15.02.22 22:13, Julien Grall wrote:
>>>> As a side note, should we also update SUPPORT.md?
>>>
>>> Good question.
>>
>> I'm not sure here either - talking about individual hypercall sub-ops
>> seems overly small granularity to me for this kind of doc. Plus I
>> don't view deprecation and de-supporting as the same thing. The latter
>> would mean to render unsupported any old XenoLinux which may still be
>> in use, all of the sudden.
>
> I understand this would result to unsupport some old OSes (not clear how
> old). However, from what Juergen said this feature is untested.
>
> To me it sound like we are not confident that we could security support
> this feature.
>
> So I am not sure to understand why we only want to deprecate it.
Not sure what to say: Rendering unsupported however old guests is not
a nice step. Hence my concern (which isn't an outright objection).
Jan
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