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Tue, 19 Dec 2023 10:09:21 -0800 From: Dragos Tatulea To: "Michael S . Tsirkin" , Jason Wang , Eugenio Perez Martin , Si-Wei Liu , Saeed Mahameed , Leon Romanovsky , , Gal Pressman CC: Dragos Tatulea , , , Parav Pandit , Xuan Zhuo Subject: [PATCH vhost v4 05/15] vdpa: Accept VHOST_BACKEND_F_CHANGEABLE_VQ_STATE_IN_SUSPEND backend feature Date: Tue, 19 Dec 2023 20:08:48 +0200 Message-ID: <20231219180858.120898-6-dtatulea@nvidia.com> X-Mailer: git-send-email 2.42.0 In-Reply-To: <20231219180858.120898-1-dtatulea@nvidia.com> References: <20231219180858.120898-1-dtatulea@nvidia.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 8bit X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: BL6PEPF0001AB74:EE_|CH3PR12MB8849:EE_ X-MS-Office365-Filtering-Correlation-Id: d935b6aa-7f37-4a78-cebd-08dc00bdaba9 X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0; X-Microsoft-Antispam-Message-Info: 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 X-Forefront-Antispam-Report: CIP:216.228.117.161;CTRY:US;LANG:en;SCL:1;SRV:;IPV:NLI;SFV:NSPM;H:mail.nvidia.com;PTR:dc6edge2.nvidia.com;CAT:NONE;SFS:(13230031)(4636009)(136003)(39860400002)(376002)(396003)(346002)(230922051799003)(186009)(82310400011)(64100799003)(451199024)(1800799012)(36840700001)(46966006)(40470700004)(40480700001)(40460700003)(70206006)(36756003)(82740400003)(7636003)(356005)(70586007)(86362001)(4326008)(66574015)(1076003)(426003)(336012)(83380400001)(6636002)(2616005)(110136005)(6666004)(36860700001)(54906003)(8676002)(8936002)(316002)(2906002)(478600001)(5660300002)(4744005)(26005)(41300700001)(47076005);DIR:OUT;SFP:1101; X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 19 Dec 2023 18:09:40.6744 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: d935b6aa-7f37-4a78-cebd-08dc00bdaba9 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.161];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BL6PEPF0001AB74.namprd02.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: CH3PR12MB8849 If userland sets this feature, allow it. Signed-off-by: Dragos Tatulea Suggested-by: Eugenio Pérez --- drivers/vhost/vdpa.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/vhost/vdpa.c b/drivers/vhost/vdpa.c index 2250fcd90e5b..b4e8ddf86485 100644 --- a/drivers/vhost/vdpa.c +++ b/drivers/vhost/vdpa.c @@ -750,6 +750,7 @@ static long vhost_vdpa_unlocked_ioctl(struct file *filep, BIT_ULL(VHOST_BACKEND_F_SUSPEND) | BIT_ULL(VHOST_BACKEND_F_RESUME) | BIT_ULL(VHOST_BACKEND_F_CHANGEABLE_VQ_ADDR_IN_SUSPEND) | + BIT_ULL(VHOST_BACKEND_F_CHANGEABLE_VQ_STATE_IN_SUSPEND) | BIT_ULL(VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK))) return -EOPNOTSUPP; if ((features & BIT_ULL(VHOST_BACKEND_F_SUSPEND)) && -- 2.43.0