Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20;
Date:   Tue, 30 May 2023 21:32:49 -0300
From:   Jason Gunthorpe <jgg@nvidia.com>
To:     Alistair Popple <apopple@nvidia.com>
Cc:     Sean Christopherson <seanjc@google.com>,
        Robin Murphy <robin.murphy@arm.com>,
        Andrew Morton <akpm@linux-foundation.org>, will@kernel.org,
        catalin.marinas@arm.com, linux-mm@kvack.org,
        linux-kernel@vger.kernel.org, nicolinc@nvidia.com,
        linux-arm-kernel@lists.infradead.org, kvm@vger.kernel.org,
        John Hubbard <jhubbard@nvidia.com>, zhi.wang.linux@gmail.com
Subject: Re: [PATCH 2/2] arm64: Notify on pte permission upgrades
Message-ID: <ZHaVsa3oXfXqE1Pu@nvidia.com>
References: <ZHKaBQt8623s9+VK@nvidia.com>
 <87pm6ii6qi.fsf@nvidia.com>
 <ZHXj/6Bjraxqk4YR@nvidia.com>
 <d2e591c1-eb43-377b-d396-8335f77acef6@arm.com>
 <ZHXxkUe4IZXUc1PV@nvidia.com>
 <89dba89c-cb49-f917-31e4-3eafd484f4b2@arm.com>
 <ZHYCygONW53/Byp3@nvidia.com>
 <ZHZuSDp6ioPqI272@google.com>
 <ZHaCAJI+OgIfDWSx@nvidia.com>
 <87v8g9qr2z.fsf@nvidia.com>
Content-Type: text/plain; charset=us-ascii
Content-Disposition: inline
In-Reply-To: <87v8g9qr2z.fsf@nvidia.com>
MIME-Version: 1.0
X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1
X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?jIYIOJRqzjvdoQCvfrw9o4MoJrHc/RUiOq0w7jDIj1Wv/Vyb3QAmBeknrNTY?=
 =?us-ascii?Q?UIkn13Z7UejLfIa63JZlSoEXqAO5sTfsAeurNzjOT6n4P1owb8II2vtM2Cxz?=
 =?us-ascii?Q?dYPxm4jWf9Qny09xJ+YAi+pRgeM0VXS7o8chGpMBorbMXEO+AiFBqp98klL2?=
 =?us-ascii?Q?i43LAaMqMDh7qC2h/RbZz8ev+8w8LCFHUWJxCUYSIJRIL9h6L6fMydr2er7g?=
 =?us-ascii?Q?djyH8xOFc5CyrJgxkCJAiUDp/ujKxri2lK61qMDl9hpLvalMpXftQyeE2KX1?=
 =?us-ascii?Q?FXQL11F0XFmOTleVwRZoffZLnx38kIuPVDjmMs2oTE2SJNZPXjJU/QgnTeG3?=
 =?us-ascii?Q?aeMmW9L/AW+o5BzehYumJeOpisAw3mrVE36DRiPCD5o79OXZanTmP//bDGGX?=
 =?us-ascii?Q?ZRkhw3a/Wzk9u8p6PFmrX34OTKx8gyjbu84BKcs73TETa7ai/aYqZRl+AEEv?=
 =?us-ascii?Q?Rj1zu86SXQxbe/14N3U/RdsAOoSsisTzOwEaK2dGUNBcz5zstGHlC/iSl3S0?=
 =?us-ascii?Q?lO4c8BQmd6VlYIuC8kjBLG5iURMy/IhuGN1P6spKTyTQyszQSqg6ovMzASd3?=
 =?us-ascii?Q?Z5lUrsHq67gTrfZdv9rWuHZNmfrgvWd1jinYziIkebdZ6nxoDfs6XhyPau4N?=
 =?us-ascii?Q?jQYL/jTPCfDIyda46HJEdAo/p7KE/XDetjeIja26a2gAAAo20ESzaoNJhFSX?=
 =?us-ascii?Q?PkYbQ6UsohtJfbIO1k/6sha2uNBmEfQbTYH4Dylof5HRCsupI1e1loSXVmfe?=
 =?us-ascii?Q?TYAlGUbEg3ph/Zw8EoS7MWQ7FL0cH0dcrFKO2z3U5Utxo2CW/OUDl16B9w/+?=
 =?us-ascii?Q?aUGN3qGCrfg6bjq56e7Z5pVg1z5dRof/HEf5aBgHlPQdVM8BPgJJKFDZWQ1d?=
 =?us-ascii?Q?cBJ5o371TSdhRVA6THEBCK6JRQR2v84Adyf48tiEUF+Nui1CytPU4uOuuFtD?=
 =?us-ascii?Q?nVv3TkK+d1hsx+4OAw7rZhhj/E15YDzfbEMkkFjxc0Vfv0q86XLgU254ti4I?=
 =?us-ascii?Q?DrWVa/HDOYRcqI47TrC+wVyPLd0/hwtWOgjgUcZTJKo/s0LgviFdtTzdb9Fs?=
 =?us-ascii?Q?cRMohpbnqNccf3M7wWQe0WYcEf8GatSpGtyTQ5EaSU7xgfy72rzFPmLJ63re?=
 =?us-ascii?Q?kqX1CgTvgHBhDnrVCQ0RJR9vCO2ABjRBPbTHnCdGBwGSoNsD3yhzwASbQp5c?=
 =?us-ascii?Q?9eBtPJlQD+9gPXqswN9q6s4agAgP4HyT3XDIS5jDU4K6rS7i560x45hpvnIB?=
 =?us-ascii?Q?evGlAnneQcx8Tzkilnzh/F8ovx6eCUr4GdXX9SoSvtzY9AcK8jzGLdjLy5WT?=
 =?us-ascii?Q?ROKXxYWxHb4dhHk2gljTZM9IiIUtpiNRVu0ONGpgOfD5tapH0NBvIm11Rnmn?=
 =?us-ascii?Q?iawPcKi6BvBUC1GSlN5NaZ3QlGbZoo/gHcl4Is5M8vKn6+5ZqsevmCxuTYX/?=
 =?us-ascii?Q?eSrhG7qig2RsxyGsPDgqtJ7WvJSW9f4EVqO/QGu2kNY5AUJom610sknM6zDC?=
 =?us-ascii?Q?3P0sJWFJJy9tTnegN2KbAdZXMDekuT7N2OD2tnTXgS3IaGCbMbeeCbD7g2tZ?=
 =?us-ascii?Q?bqMUHBgWGyctbToIpkTHnEXNiOwso8HRe3Jg2BOG?=
X-OriginatorOrg: Nvidia.com
X-MS-Exchange-CrossTenant-Network-Message-Id: f29b84a6-1425-4475-b1b0-08db616e912f
X-MS-Exchange-CrossTenant-AuthSource: LV2PR12MB5869.namprd12.prod.outlook.com
X-MS-Exchange-CrossTenant-AuthAs: Internal
X-MS-Exchange-CrossTenant-OriginalArrivalTime: 31 May 2023 00:32:51.5087
 (UTC)
X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted
X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a
X-MS-Exchange-CrossTenant-MailboxType: HOSTED
X-MS-Exchange-CrossTenant-UserPrincipalName: RH06v/5yOT6hNr1Xu87oz7vFLtk7T8HCg8NyFldW6HCkyU0EtZXfeqQsrOIjGCgH
X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV2PR12MB5871
X-Spam-Status: No, score=-1.3 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH,
        DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,FORGED_SPF_HELO,
        RCVD_IN_DNSWL_NONE,RCVD_IN_MSPIKE_H2,SPF_HELO_PASS,SPF_NONE,
        T_SCC_BODY_TEXT_LINE,URIBL_BLOCKED autolearn=no autolearn_force=no
        version=3.4.6
X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on
        lindbergh.monkeyblade.net
Precedence: bulk
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Wed, May 31, 2023 at 10:30:48AM +1000, Alistair Popple wrote:

> So I'd rather keep the invalidate in ptep_set_access_flags(). Would
> renaming invalidate_range() to invalidate_arch_secondary_tlb() along
> with clearing up the documentation make that more acceptable, at least
> in the short term?

Then we need to go through removing kvm first I think.

Jason