> From: Lu Baolu <baolu...@linux.intel.com> > Sent: Wednesday, June 29, 2022 3:47 PM > > The disable_dmar_iommu() is called when IOMMU initialization fails or > the IOMMU is hot-removed from the system. In both cases, there is no > need to clear the IOMMU translation data structures for devices. > > On the initialization path, the device probing only happens after the > IOMMU is initialized successfully, hence there're no translation data > structures. > > On the hot-remove path, there is no real use case where the IOMMU is > hot-removed, but the devices that it manages are still alive in the > system. The translation data structures were torn down during device > release, hence there's no need to repeat it in IOMMU hot-remove path > either. This removes the unnecessary code and only leaves a check. > > Signed-off-by: Lu Baolu <baolu...@linux.intel.com>
You probably overlooked my last comment on kexec: https://lore.kernel.org/lkml/bl1pr11mb52711a71ad9f11b7ae42694c8c...@bl1pr11mb5271.namprd11.prod.outlook.com/ I think my question is still not answered. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu
