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Tue, 30 Jun 2026 23:27:42 -0700 From: Zhi Wang To: , CC: , , , , , , , , , , , , , , , , , , , , , , , , , , Zhi Wang Subject: [PATCH v3 7/8] gpu: nova-core: set RMSetSriovMode for vGPU Date: Wed, 1 Jul 2026 09:26:21 +0300 Message-ID: <20260701062622.3499033-8-zhiw@nvidia.com> X-Mailer: git-send-email 2.51.0 In-Reply-To: <20260701062622.3499033-1-zhiw@nvidia.com> References: <20260701062622.3499033-1-zhiw@nvidia.com> Precedence: bulk X-Mailing-List: nova-gpu@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Content-Type: text/plain X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: MWH0EPF000A672F:EE_|BY5PR12MB4226:EE_ X-MS-Office365-Filtering-Correlation-Id: a1c01f45-31cb-4adf-de75-08ded739ef4e X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|7416014|376014|36860700016|82310400026|23010399003|1800799024|18002099003|56012099006|11063799006|22082099003|6133799003|3023799007; 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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: gn++o7bWxFojZFR7jwAqN/6HLebe3Vj/x6utbWi7z7UG8KMsNKl3pt+n0r49K4GqPoqISDtp3GLbdiznmKSdP8At3x8gSzruyknrD5K7GR7OhLGa5xBuebCBtZylaMLTfSVDB1NuCSkgujZYDUm529CrDdfMiRcqahGdQ5e7lraX9rQMTqb4GQlEeNt6PEGq4KbQr074Fs/WESEEyZXC2vQ7FO8iYybhMUEI0r6NEiT4arwaDOAIIm8iHEc2wIf9vtjeyMkcStdY+B6D1Iabnn3rHkXXtOWW17bj2HPeewRl2yhgdCNYM+wNbSSbajWMz/Znd+lEk+K7xRUgfHaeUBHaalDODr5AU+9+In5c440c41kD9XOmLBpF8Q/9x5pSS1KFcj5EQ0GSQ6x3sIipq8xlKOyGHGtiIL5IIYoGMWoneMABU7G0hnRr92n6vhsg X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 01 Jul 2026 06:28:15.8506 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: a1c01f45-31cb-4adf-de75-08ded739ef4e X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: MWH0EPF000A672F.namprd04.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BY5PR12MB4226 The GSP registry setup needs to advertise SR-IOV mode when nova-core boots GSP for an enabled vGPU configuration. Without the registry entry, GSP-RM is not told to initialize in the mode required by NVIDIA vGPU. Append RMSetSriovMode to the SetRegistry command when the vGPU state detected before GSP boot is enabled. Keep the existing registry entries unchanged for non-vGPU boots. Cc: Alexandre Courbot Signed-off-by: Zhi Wang --- drivers/gpu/nova-core/gsp/boot.rs | 2 +- drivers/gpu/nova-core/gsp/commands.rs | 16 ++++++++++++++-- 2 files changed, 15 insertions(+), 3 deletions(-) diff --git a/drivers/gpu/nova-core/gsp/boot.rs b/drivers/gpu/nova-core/gsp/boot.rs index 139cedacffd2..c0513ab7f4c1 100644 --- a/drivers/gpu/nova-core/gsp/boot.rs +++ b/drivers/gpu/nova-core/gsp/boot.rs @@ -102,7 +102,7 @@ pub(crate) fn boot( self.cmdq .send_command_no_wait(bar, commands::SetSystemInfo::new(pdev, chipset))?; self.cmdq - .send_command_no_wait(bar, commands::SetRegistry::new()?)?; + .send_command_no_wait(bar, commands::SetRegistry::new(ctx.vgpu.state())?)?; hal.post_boot(&self, ctx, &gsp_fw)?; diff --git a/drivers/gpu/nova-core/gsp/commands.rs b/drivers/gpu/nova-core/gsp/commands.rs index dfb9f04e284d..07712957a5a9 100644 --- a/drivers/gpu/nova-core/gsp/commands.rs +++ b/drivers/gpu/nova-core/gsp/commands.rs @@ -34,6 +34,7 @@ }, }, sbuffer::SBufferIter, + vgpu::VgpuState, // }; /// The `GspSetSystemInfo` command. @@ -73,8 +74,8 @@ pub(crate) struct SetRegistry { impl SetRegistry { // For now we hard-code the registry entries. Future work will allow others to // be added as module parameters. - /// Creates a new `SetRegistry` command, using a set of hardcoded entries. - pub(crate) fn new() -> Result { + /// Creates a new `SetRegistry` command. + pub(crate) fn new(vgpu_state: VgpuState) -> Result { let mut entries = KVec::new(); // RMSecBusResetEnable - enables PCI secondary bus reset @@ -106,6 +107,17 @@ pub(crate) fn new() -> Result { GFP_KERNEL, )?; + if matches!(vgpu_state, VgpuState::Enabled { .. }) { + // RMSetSriovMode - required when vGPU is enabled. + entries.push( + RegistryEntry { + key: "RMSetSriovMode", + value: 1, + }, + GFP_KERNEL, + )?; + } + Ok(Self { entries }) } } -- 2.51.0