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Wed, 6 Mar 2024 14:57:22 +0000 Message-ID: Date: Wed, 6 Mar 2024 20:27:15 +0530 User-Agent: Mozilla Thunderbird Subject: Re: [RFC PATCH] kvm: nv: Optimize the unmapping of shadow S2-MMU tables. Content-Language: en-US To: Marc Zyngier Cc: Oliver Upton , kvmarm@lists.linux.dev, kvm@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, darren@os.amperecomputing.com, d.scott.phillips@amperecomputing.com, James Morse , Suzuki K Poulose , Zenghui Yu References: <20240305054606.13261-1-gankulkarni@os.amperecomputing.com> <8e2ee8dd-4412-4133-8b08-75d64ab79649@os.amperecomputing.com> <86plw71o41.wl-maz@kernel.org> From: Ganapatrao Kulkarni In-Reply-To: <86plw71o41.wl-maz@kernel.org> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit X-ClientProxiedBy: CH0P221CA0044.NAMP221.PROD.OUTLOOK.COM (2603:10b6:610:11d::27) To SJ2PR01MB8101.prod.exchangelabs.com (2603:10b6:a03:4f6::10) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SJ2PR01MB8101:EE_|SA0PR01MB6489:EE_ X-MS-Office365-Filtering-Correlation-Id: 35053a5f-acd8-4170-798e-08dc3dedba7d X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; 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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