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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: =?us-ascii?Q?Oj2iU2Qq4DRJ/a3rrvpdv7sXbb9O9KIsWTJDC+pK6co183tpW073h8VLXQTj?= =?us-ascii?Q?8n1j2wzp4xXRsoOCOk20QLR5f9WZKMCuUbw60Ac+dWo0gqnJ0FKUrlcz92mH?= =?us-ascii?Q?r1zs+jmKyFJb3cc0OrUImP5BRx+pmhXuD+5IRl5EUZb3ybF/kMP73IbN6ZXh?= =?us-ascii?Q?t7iDf6v43hPsaUyfpUQTgZ3vpRlewlfD7HN0gI7IPf+ZSpv76+eHXJHp6ntp?= =?us-ascii?Q?W36edxh9dpQik64XFNOWUcYGwr/JVglxpGcA0LZQc0OdoclPeNAg4vARxaZJ?= =?us-ascii?Q?8OfZZ6XPZe3iCrr658uytvnxP60Q5Fch6s+r2oj9y5hbCvuAV1/0H8o5NcSO?= =?us-ascii?Q?w21z9q11QhFD4t0qybRhziSvoi40dT47wFNDmbM8WaUvH9EnL30TKh9yyxcN?= =?us-ascii?Q?tqwvjciOHdWzh5lnQKUZFi/y6Pozg+uIRh90hKwhZhonv6fBYxlLTFrmLtah?= =?us-ascii?Q?wyWS3Y+vo6W9pDQJySp3fSxiK9QvWGikhuyJHVBBq3sB8o7mG0x1wau7EDr3?= =?us-ascii?Q?1maBpIZZmobU1IGMbUIo61LR/rC3pX0W7zNzqBca4jIJ5Z/YKURayD2mlVja?= =?us-ascii?Q?YZa6OYLtjB5F9fFodttz6U4OuoNUpnM+gIflHkL5tZtZSeF6fJfv0jyF1Q4t?= =?us-ascii?Q?e0iqeCMBCM+wF7MTHqPoeRjE0Ixl2TKSXnV0FEoNO67NYz6AnhROxXWU3laC?= =?us-ascii?Q?i2Os7+yO1diVuRKUYgKcBhbTt9fvHsb4l7hVsHZS4Kl5B13foq6AF+ujW8WJ?= =?us-ascii?Q?NgqD6KzSw3yrhFCneOWXMpKCBOyFRIhAKY68g7i81cglqO0vg4OMt6DKHkQ1?= =?us-ascii?Q?nfFVlPvjuBnjYnqWMKdmvR+8M6QsTLLm9CDdlYOkJxRZtHwGkwQY6lyhC9MJ?= =?us-ascii?Q?w99Cr1ETCSyP4aN+TE3/ofcE4f8hcnWNAEkITL2UAR4/6TpbXWyb7afixizW?= =?us-ascii?Q?qKU4QxkQ+CO8FuCQa5wa2J7+OEs8NDiQ8UPrOO1agfFXdfhrzrQTrW/0iymp?= =?us-ascii?Q?OhjtQlx7VtON0YNBTOtDICraYUk9xaLS2cpKo33kjoxlBdRC/iMdybivRSpk?= =?us-ascii?Q?ej8hKHwpblE5ydxt5JASOdNk0jUaanotw6cjwW02pKnmZnZ2CABRlC8sjLLX?= =?us-ascii?Q?LjZ4wI/7/X4mM/q5dKnysM/6L8vVgOFvEbOXTPIq95PR8O56XgtGZtbbZJcw?= =?us-ascii?Q?okUXuL9+lvyPsF3i5PVaOEq9Z2xAAsWbe3chQXT4YQ6YjtXHAk6O853W7LGb?= =?us-ascii?Q?fuGcd6LzNfZFJGjR5HTzP+oCEqXlNandaxOhkd/uNrqchrCTQb8wy2JF3e46?= =?us-ascii?Q?xDw9dmMpr569sIxRHjjX4KpLTzDm1fpswuVl9Ih0AFjB7t1RRZNzjnlG3qFK?= =?us-ascii?Q?QLL5JtsE3gCwXIoj6ixbeA9ExTlIV7hk9KcfTWRUI3v+rt5D5UezVdCrr2bJ?= =?us-ascii?Q?5w8308BTxdryS8gYiurTgDYyKXeEsC/6DZLwgs5f02XLl39hSeyXxm66XLek?= =?us-ascii?Q?ZcmItvsaHUCn0jw31xtr/Lzuy1CXueCU/E0IjQIA9T6J9jHSdg/xaos/fiFm?= =?us-ascii?Q?0cXsvGp3SJ8ucrXHMeIQOucSmm/yoUYUrsRIhSWw?= X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-Network-Message-Id: 82f456c5-4422-42b2-901f-08dccdc3452c X-MS-Exchange-CrossTenant-AuthSource: CH3PR12MB7763.namprd12.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Internal X-MS-Exchange-CrossTenant-OriginalArrivalTime: 05 Sep 2024 15:56:14.3923 (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: tbI1Xp8+uTJ6RMGv9h5i0ccLEtkYyTkdgkdb5d38uz56cR9NT4waLqE76otpkuMQ X-MS-Exchange-Transport-CrossTenantHeadersStamped: SJ2PR12MB7942 X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240905_085620_050879_C61CFEE6 X-CRM114-Status: GOOD ( 10.86 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Tue, Aug 27, 2024 at 09:59:41AM -0700, Nicolin Chen wrote: > Now a VIOMMU can wrap a shareable nested parent HWPT. So, it can act like > a nested parent HWPT to allocate a nested HWPT. > > Support that in the IOMMU_HWPT_ALLOC ioctl handler, and update its kdoc. > > Also, associate a viommu to an allocating nested HWPT. > > Signed-off-by: Nicolin Chen > --- > drivers/iommu/iommufd/hw_pagetable.c | 24 ++++++++++++++++++++++-- > drivers/iommu/iommufd/iommufd_private.h | 1 + > include/uapi/linux/iommufd.h | 12 ++++++------ > 3 files changed, 29 insertions(+), 8 deletions(-) Reviewed-by: Jason Gunthorpe Jason