Re: [PATCH v3 17/19] iommu/amd: Access/Dirty bit support in IOPTEs

Jason Gunthorpe
2023-10-17T18:49:37Z

On Tue, Oct 17, 2023 at 07:32:31PM +0100, Joao Martins wrote:

> Jason, how do we usually handle this cross trees? check_feature() doesn't exist
> in your tree, but it does in Joerg's tree; meanwhile
> check_feature_on_all_iommus() gets renamed to check_feature(). Should I need to
> go with it, do I rebase against linux-next? I have been assuming that your tree
> must compile; or worst-case different maintainer pull each other's trees.

We didn't make any special preparation to speed this, so I would wait
till next cycle to take the AMD patches

Thus we should look at the vt-d patches if this is to go in this
cycle.

> Alternatively: I can check the counter directly to replicate the amd_iommu_efr
> check under the current helper I made (amd_iommu_hd_support) and then change it
> after the fact... That should lead to less dependencies?

Or this

We are fast running out of time though :)

Jason