linux-kernel - Re: [RFC PATCH] kvm: nv: Optimize the unmapping of shadow S2-MMU tables.

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Message-ID: <b473a3f9-17a3-4d53-a477-cce008e1def0@os.amperecomputing.com>
Date: Wed, 6 Mar 2024 20:27:15 +0530
From: Ganapatrao Kulkarni <gankulkarni@...amperecomputing.com>
To: Marc Zyngier <maz@...nel.org>
Cc: Oliver Upton <oliver.upton@...ux.dev>, kvmarm@...ts.linux.dev,
 kvm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-kernel@...r.kernel.org, darren@...amperecomputing.com,
 d.scott.phillips@...erecomputing.com, James Morse <james.morse@....com>,
 Suzuki K Poulose <suzuki.poulose@....com>, Zenghui Yu <yuzenghui@...wei.com>
Subject: Re: [RFC PATCH] kvm: nv: Optimize the unmapping of shadow S2-MMU
 tables.

On 06-03-2024 07:03 pm, Marc Zyngier wrote:
> On Wed, 06 Mar 2024 05:31:09 +0000,
> Ganapatrao Kulkarni <gankulkarni@...amperecomputing.com> wrote:
>>
>>
>>
>> On 05-03-2024 02:16 pm, Oliver Upton wrote:
>>> -cc old kvmarm list
>>> +cc new kvmarm list, reviewers
>>>
>>> Please run scripts/get_maintainer.pl next time around so we get the
>>> right people looking at a patch.
>>>
>>
>> Of course I know this script -:)
>> I didn't cc since I felt to avoid unnecessary overloading someone's
>> inbox. I don't think anyone(even ARM) is interested in this feature
>> other than Marc and me/Ampere. Otherwise this would have merged
>> upstream by now.
> 
> You're wrong on a lot of this. There is quite a significant interest,
> actually. But in the fine corporate tradition, not even my employer
> can be bothered to actively contribute. These people are waiting for
> things to land. I'm happy to make them wait even longer (I'm paying
> for my own HW, so I don't owe anyone anything).
> 
> The architecture also wasn't in a good enough state for the support to
> be merged until very recently, and it still is broken in a lot of
> respects.
> 
>> BTW, NV feature development started way back in 2016/17.
> 
> And? Cc'ing individuals and lists is basic courtesy, I'm afraid.
> Please don't leave people in the dark.

Sure, My apologies, will not skip in future!

> 
> Thanks,
> 
> 	M.
> 

Thanks,
Ganapat