Joao Martins dddfd8d667 vfio/iommufd: Probe and request hwpt dirty tracking capability ... In preparation to using the dirty tracking UAPI, probe whether the IOMMU supports dirty tracking. This is done via the data stored in hiod::caps::hw_caps initialized from GET_HW_INFO. Qemu doesn't know if VF dirty tracking is supported when allocating hardware pagetable in iommufd_cdev_autodomains_get(). This is because VFIODevice migration state hasn't been initialized *yet* hence it can't pick between VF dirty tracking vs IOMMU dirty tracking. So, if IOMMU supports dirty tracking it always creates HWPTs with IOMMU_HWPT_ALLOC_DIRTY_TRACKING even if later on VFIOMigration decides to use VF dirty tracking instead. Signed-off-by: Joao Martins <joao.m.martins@oracle.com> [ clg: - Fixed vbasedev->iommu_dirty_tracking assignment in iommufd_cdev_autodomains_get() - Added warning for heterogeneous dirty page tracking support in iommufd_cdev_autodomains_get() ] Signed-off-by: Cédric Le Goater <clg@redhat.com> Reviewed-by: Zhenzhong Duan <zhenzhong.duan@intel.com>		2024-07-23 17:14:52 +02:00
..
vfio-amd-xgbe.h	Use DECLARE_*CHECKER* macros	2020-09-09 09:27:09 -04:00
vfio-calxeda-xgmac.h	Use DECLARE_*CHECKER* macros	2020-09-09 09:27:09 -04:00
vfio-common.h	vfio/iommufd: Probe and request hwpt dirty tracking capability	2024-07-23 17:14:52 +02:00
vfio-container-base.h	HostIOMMUDevice: Introduce get_page_size_mask() callback	2024-07-09 11:50:37 +02:00
vfio-platform.h	Use DECLARE_*CHECKER* macros	2020-09-09 09:27:09 -04:00