Re: [PATCH v7 09/12] iommu: Make iommu_queue_iopf() more generic

[Jason Gunthorpe]

On Wed, Nov 15, 2023 at 11:02:23AM +0800, Lu Baolu wrote:
> Make iommu_queue_iopf() more generic by making the iopf_group a minimal
> set of iopf's that an iopf handler of domain should handle and respond
> to. Add domain parameter to struct iopf_group so that the handler can
> retrieve and use it directly.
> 
> Change iommu_queue_iopf() to forward groups of iopf's to the domain's
> iopf handler. This is also a necessary step to decouple the sva iopf
> handling code from this interface.
> 
> Signed-off-by: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>
> Reviewed-by: Kevin Tian <kevin.tian@xxxxxxxxx>
> Tested-by: Yan Zhao <yan.y.zhao@xxxxxxxxx>
> ---
>  include/linux/iommu.h      |  4 +--
>  drivers/iommu/iommu-sva.h  |  6 ++---
>  drivers/iommu/io-pgfault.c | 55 +++++++++++++++++++++++++++++---------
>  drivers/iommu/iommu-sva.c  |  3 +--
>  4 files changed, 48 insertions(+), 20 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@xxxxxxxxxx>

Jason