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Every IOMMU driver should be able to implement the needed iommu domain ops to control dirty tracking. Connect a hw_pagetable to the IOMMU core dirty tracking ops, specifically the ability to enable/disable dirty tracking on an IOMMU domain (hw_pagetable id). To that end add an io_pagetable kernel API to toggle dirty tracking: * iopt_set_dirty_tracking(iopt, [domain], state) The intended caller of this is via the hw_pagetable object that is created. Internally it will ensure the leftover dirty state is cleared /right before/ dirty tracking starts. This is also useful for iommu drivers which may decide that dirty tracking is always-enabled at boot without wanting to toggle dynamically via corresponding iommu domain op. Link: https://lore.kernel.org/r/20231024135109.73787-7-joao.m.martins@oracle.com Signed-off-by: Joao Martins <joao.m.martins@oracle.com> Reviewed-by: Jason Gunthorpe <jgg@nvidia.com> Reviewed-by: Kevin Tian <kevin.tian@intel.com> Signed-off-by: Jason Gunthorpe <jgg@nvidia.com> |
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| .. | ||
| device.c | ||
| double_span.h | ||
| hw_pagetable.c | ||
| io_pagetable.c | ||
| io_pagetable.h | ||
| ioas.c | ||
| iommufd_private.h | ||
| iommufd_test.h | ||
| iova_bitmap.c | ||
| Kconfig | ||
| main.c | ||
| Makefile | ||
| pages.c | ||
| selftest.c | ||
| vfio_compat.c | ||