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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?cONThKDD9tATVTEd/66ryL2olNLy2MQmDtmWjFzDe3Dr5SL1GYJWNNwc2gwo?= =?us-ascii?Q?99cRGYkMgQyIyU3OOwOFqrqNslR2i+/3XFGRgtPOZ4A2IJKniYVo6VNQFgnp?= =?us-ascii?Q?WJEn54oGnTHPt62qWDTc4vM8ZQvmSPLfm+jwFINxqLG+GAsQciLfOCBVo49f?= =?us-ascii?Q?X/umACQVMa982dMMV9yfw5Ur8NARS9alg6qXEqT3aSNsczjolc51diGHuhlA?= =?us-ascii?Q?IFECAilcbpj3UeAcqC5AXR0ZsO/rMZTShC7aTy5U9ABHb1nWV1M9JCQ4Waio?= =?us-ascii?Q?u6G09fhtbb1whyVxcHwRHfr6Udv3zI+LQfWtlA2gEDh7DmyYo6Ha9fMHnmYV?= =?us-ascii?Q?2infNNJebz2LbMF8CbyuCIUKPf7gB7hNUyZY6wu5y6b1oeIXq05f3yVwHFji?= =?us-ascii?Q?Hx5P6Onf0KgQ0RA6mkdhs87GImpxbAs3Rh5bE3Zba7VTCAwPdcxyW2cJEu83?= =?us-ascii?Q?CkTIoezMouizDF3uLW6vLtNBb1iXLY8PVn6XM0ER91iZZMqkYNeNOBZFmQ+K?= =?us-ascii?Q?D8vv4vkQbmC1vTeZQ32oT+1z0G6mDnkOGcmCGnewzQbdu+Nbt/7KtW3JdYnr?= =?us-ascii?Q?1D3YmpDAyO6kAdnUVAq+4akbfaww9Rv9J8p64cPlmICOfJxB+wOeaV+0iVp2?= =?us-ascii?Q?ioX7HXpu9CbZ8tnCeABaCF4WWi6736N587iIlEAfy2mnJ4NQtQgfcQH9X8Bz?= =?us-ascii?Q?iiSJy8f+kLTPOtOrDOc3504qIfsWAOCNsYTahfO/vUZ5Yq3NISmso/cLamvf?= =?us-ascii?Q?PhTg5v8NtMc4zN/BTD1CyToKLVmOp9mGeFByaX5lIetBtBzq+OTVny0ltCzU?= =?us-ascii?Q?tA9i6rK4oJAf4S9OMZSTyga/1OKf5o1c/Ug1am9EV4gsY1qCaUR8WaRIfTTZ?= =?us-ascii?Q?latIzamMOcLl67SWWzBWYTMD2SYuokjaCoyeueqw5lAdveFs7Kr04iQraJAO?= =?us-ascii?Q?eOpPR3Vi9ByQ5+T1cspZR57Sxzng3ZfD+uidrnphAjfxBJxJcxrAQR2Q7EBM?= =?us-ascii?Q?/NDNbePfpqppRIEUQrRoQ1TERRvc0ltZ5p6QAgbSFBOs8HF1IaBJHV8PUY70?= =?us-ascii?Q?z9vWYel7izSbwxUtyaR7RAm/if08CHsABJFd5oyLzr+c6XhrybEa2cdaSlFp?= =?us-ascii?Q?PAcFFw4JAGO6Zq+zk5kwTn5Y3Pndr5/h/fNr3T3QlIRoNCSpWL4JKIF9F9dZ?= =?us-ascii?Q?t+7TTnITjjEMWKQcsQTFBXUVxJTkwe3zf34t+HdIdc6hTZcUrmqDfKo40GOv?= =?us-ascii?Q?OaDqj9iXVOd+Ztdsm+d5ljD6OwTLSw5hHQxQI9OmGUdupmC8xmJeyU56U0bR?= =?us-ascii?Q?HWN6DsZ642EcyL8vINiu+iPr55xh/EkXDaazCV+ZIQEUUxzw9c9tktjY/I7H?= =?us-ascii?Q?EDYpkznqkF12241PLGnS5G5BhKRx7vkvEsDdPYDu4dmmldCGJFFzLUzLBphh?= =?us-ascii?Q?pzY/GMv0vTjHW1cKNMh5LzxX74fsZU5GhizQgU7KUsfY13qM6xybay59EZ4c?= =?us-ascii?Q?zmxjZho8mlAPd+FqXwyGqVX9i6SrbQ463bjOXygoLYf+I0ZvUjdPb4ONnS8O?= =?us-ascii?Q?dEQPfWVRvhzQTft24msE7kCC9AHxzdqjAUeKW1CJhSrR21/LV1+GL1tUweJY?= =?us-ascii?Q?jLQyzFyGbdPUgiGB14NigHvldGGOssWneQAupIgGkrv8oA4yb0J59/UgpVoE?= =?us-ascii?Q?zhmZg0Z2FfncQXopmlRSyZoRIVTw12vq7GULS09ylkgqmqKh?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 86587835-14b5-4cf1-5dde-08df279ec271 X-MS-Exchange-CrossTenant-AuthSource: CHBPR12MB731189.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Oct 2026 13:51:33.1346 (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: +Qo25uIlsCV6nNAIFxCHOZIKWi12HQ+EIE5QKox+OsCvl1P4BRPjWMzEciQvRJaA X-MS-Exchange-Transport-CrossTenantHeadersStamped: LV1PR12MB999329 On Sat, Oct 10, 2026 at 07:18:37PM +0800, fangyu.yu@linux.alibaba.com wrote: > This is not a generic page-table operation. It is a special > requirement of RISC-V IOMMU IRQ forwarding (irqbypass) on > implementations without an MSI page table: the guest IMSIC GPA > must be mapped into the second-stage domain, and when a vCPU's > VS-file host page migrates, its leaf must be replaced atomically. I think you can add an atomic PTE replace operation to generic_pt, that should be fine. Jason