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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?9eF1N7i5lat33Kfl63Wai8IbYglp1WCfA3dCGzw4gALPHhPieuG5lPxnoRK4?= =?us-ascii?Q?eb/3zAu5iauGEbkxtfI9K6RWSr/+Ma7uk8dffrWZTiUqhNI3reExWaFWxG94?= =?us-ascii?Q?SUFSOwl2HUo5Wdge4wghBFA4cQMX2rENmocjYw59I1b260obwgNNzI8h6U59?= =?us-ascii?Q?dmKn9MO1l+z7ax2KjzgyP96cLF4jLqpA3rgZqJMaUe3wDy3oVbVVnCKXXNze?= =?us-ascii?Q?bVQpoRAO3aXlRyGxBft28smNvUMYr/xCigB4KrlRuIHcUrYKA44wn/R+iQ5B?= =?us-ascii?Q?BNWAOcp7TWWiKrhPWVa+f8faMh3N9EBdsWSywiyE1m9HiBi9AGJs3MnnjEwE?= =?us-ascii?Q?BSZ05Gc6zyWyCQqkK58Ugp9A7+4KxLS5EVoWTFQnV30d4TkHtp5zH1c+vVKN?= =?us-ascii?Q?c7O7mdDTFwO/KiF6GazNyNw0070LJOTDQtaF1NzROU6/huz7axbaJd4uu23P?= =?us-ascii?Q?60XKhWOrFEYS5lGmYfhYbuoYAdL0O5ScB02xTvl5/mZgjvfyHxe59ixi1gxA?= =?us-ascii?Q?T6C1KuUi5WO3a2mBjg2DtyaqHP8X2IxhV930QWhuVwyGJ0MQP++x02cgEtJj?= =?us-ascii?Q?cyHWBJCy9JR5FCTM/fCxRfAvvH+P4nYixfvHF91ehxdlkvjif67hqXUZSwoM?= =?us-ascii?Q?kq9MYjnryV6iCTEuuBLTL3zTeHqYpMa5r6ivIPH4qcdjgkA0DI7QdAzjNOKB?= =?us-ascii?Q?+BKf+gXzEyNdNOaAd1JCfuZ/+twJ6Vfyy/s/LH/RnrEvMehVhD2Ik9BEsrIF?= =?us-ascii?Q?p6Dy/FhpYzp9fBkO8M6Tx5a8arLG96n3QodUax1pp4TISKEV0VlvwWX7NRX7?= =?us-ascii?Q?As6VcKg1T8gzOa9pG4R72qCCtp2hTRzxzQ5J7WaSo0w8CwZNP+tDsS2Fe/O3?= =?us-ascii?Q?pFqhxVbnZVi9MGNeKFchl16i9FYl6PuqAu41g0qW69hsu9UaoRMeY8qaK7YJ?= =?us-ascii?Q?vKuR4FYbUKQqOrAcz7kUxCwCe+Iv/ilNmsHXAD+Nbau4J1Ndne6Fd2Gc7l+r?= =?us-ascii?Q?MQmaazPZdhO5Uk4VmcY+90J1rHOjK3i3bB9AXovcsKuCVy3sbSa+ozUlGEIT?= =?us-ascii?Q?ru+y6eF2KutqgMVMRnTXYHu51JXht/+ocMp4slvLpWGAJcsSTm8jRmhxUmIi?= =?us-ascii?Q?Rf+/Y920K/TMvK/G8T/ni9fPmhxdMG8UDJQXRFcg9q9Z6lNKHqg1IuCVk23Y?= =?us-ascii?Q?y2FlDGHNY9yTfTXgMyR/yly6yTo7UH1H3NuegW9ak74w+Ym67JcppiVTIPFC?= =?us-ascii?Q?hPeUz9MjbYWwsuaCjY7+Zg2Cbqa7btPtkvtTIiUhuet3ACSkRTAcrvEcZuEJ?= =?us-ascii?Q?18n5sqtNw0mjgl7oRIurxrBMKfloYibvBFVoTbhLm/WLZOimsvk0vh3N7YXe?= =?us-ascii?Q?4iQs6UfNUHJWFW0/gotq0uEKi3+w0hAPF/6ghtpUNZ5CFGbDteqNczrH5DjI?= =?us-ascii?Q?3/ihsvxjblGGLmCtZjNVhN4jcWJu9RwQmJnUShqjAuTr9DfAulDlb0zKNLz8?= =?us-ascii?Q?rZliyp4gNbVWQO/ogtTHhLQVwmTx7kp4n+cqrBkWxUmuVUJvClryMmrZdx1M?= =?us-ascii?Q?PGFdBz+JO9l0pvha90s=3D?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 0559a28d-3438-4190-0a1e-08dd4a9a8f92 X-MS-Exchange-CrossTenant-AuthSource: CH3PR12MB8659.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 11 Feb 2025 12:49:45.2236 (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: QlF6Dk2FW340ATLr37zsXxqFelZRuCYi+bFQ2dOoGmvoFxLB/0onn7Ut7ZiS9AjE X-MS-Exchange-Transport-CrossTenantHeadersStamped: MN2PR12MB4406 On Mon, Feb 10, 2025 at 03:58:00PM -0500, Pasha Tatashin wrote: > > > > > +What: /sys/kernel/kho/dt_max > > > +Date: December 2023 > > > +Contact: Alexander Graf > > > +Description: > > > + KHO needs to allocate a buffer for the DT that gets > > > + generated before it knows the final size. By default, it > > > + will allocate 10 MiB for it. You can write to this file > > > + to modify the size of that allocation. > > > > Seems gross, why can't it use a non-contiguous page list to generate > > the FDT? :\ > > We will consider some of these ideas in the future version. I like the > idea of using preserved memory to carry sparse KHO tree: i.e FDT over > sparse memory, maybe use the anchor page to describe how it should be > vmapped into a virtually contiguous tree in the next kernel? Yeah, but this is now permanent uAPI that has to be kept forever. I think you should not add this when there are enough ideas on how to completely avoid it. Jason