Re: [PATCH v3 11/12] iommu/amd: Add IO page fault notifier handler

[Jason Gunthorpe <jgg@ziepe.ca>]

On Mon, Oct 16, 2023 at 10:43:50AM +0000, Vasant Hegde wrote:
> From: Wei Huang <wei.huang2@amd.com>
> 
> Whenever there is a page fault IOMMU logs entry to ppr log and sends
> interrupt to host. We have to handle the page fault and respond to IOMMU.
> 
> Add support to validate page fault request and hook it to core iommu
> page fault handler.
> 
> Signed-off-by: Wei Huang <wei.huang2@amd.com>
> Co-developed-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
> Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
> Co-developed-by: Vasant Hegde <vasant.hegde@amd.com>
> Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
> ---
>  drivers/iommu/amd/amd_iommu_types.h |   8 +++
>  drivers/iommu/amd/ppr.c             | 100 +++++++++++++++++++++++++++-
>  2 files changed, 107 insertions(+), 1 deletion(-)

These patches don't seem ordered quite right, the patch creating the
SVA domain should be last, it should be organized so the SVA domain
doesn't work then following patches fix it.

Jason