linux-kernel - Re: [PATCH v7 09/12] iommu: Make iommu_queue

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Message-ID: <20231201191441.GE1489931@ziepe.ca>
Date:   Fri, 1 Dec 2023 15:14:41 -0400
From:   Jason Gunthorpe <jgg@...pe.ca>
To:     Lu Baolu <baolu.lu@...ux.intel.com>
Cc:     Joerg Roedel <joro@...tes.org>, Will Deacon <will@...nel.org>,
        Robin Murphy <robin.murphy@....com>,
        Kevin Tian <kevin.tian@...el.com>,
        Jean-Philippe Brucker <jean-philippe@...aro.org>,
        Nicolin Chen <nicolinc@...dia.com>,
        Yi Liu <yi.l.liu@...el.com>,
        Jacob Pan <jacob.jun.pan@...ux.intel.com>,
        Yan Zhao <yan.y.zhao@...el.com>, iommu@...ts.linux.dev,
        kvm@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v7 09/12] iommu: Make iommu_queue_iopf() more generic

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@...ux.intel.com>
> Reviewed-by: Kevin Tian <kevin.tian@...el.com>
> Tested-by: Yan Zhao <yan.y.zhao@...el.com>
> ---
>  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@...dia.com>

Jason