Re: [PATCH v2 08/12] iommu: Prepare for separating SVA and IOPF

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Subject: Re: [PATCH v2 08/12] iommu: Prepare for separating SVA and IOPF
From: Jason Gunthorpe <jgg@xxxxxxxx>
Date: Tue, 8 Aug 2023 15:43:27 -0300
Cc: Lu Baolu <baolu.lu@xxxxxxxxxxxxxxx>, Joerg Roedel <joro@xxxxxxxxxx>, Will Deacon <will@xxxxxxxxxx>, Robin Murphy <robin.murphy@xxxxxxx>, Jean-Philippe Brucker <jean-philippe@xxxxxxxxxx>, Nicolin Chen <nicolinc@xxxxxxxxxx>, "Liu, Yi L" <yi.l.liu@xxxxxxxxx>, Jacob Pan <jacob.jun.pan@xxxxxxxxxxxxxxx>, "iommu@xxxxxxxxxxxxxxx" <iommu@xxxxxxxxxxxxxxx>, "kvm@xxxxxxxxxxxxxxx" <kvm@xxxxxxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>
In-reply-to: <BN9PR11MB52769D22490BB09BB25E0C2E8C08A@BN9PR11MB5276.namprd11.prod.outlook.com>
References: <20230727054837.147050-1-baolu.lu@linux.intel.com> <20230727054837.147050-9-baolu.lu@linux.intel.com> <BN9PR11MB52769D22490BB09BB25E0C2E8C08A@BN9PR11MB5276.namprd11.prod.outlook.com>

On Thu, Aug 03, 2023 at 08:16:47AM +0000, Tian, Kevin wrote:

> Is there plan to introduce further error in the future? otherwise this should
> be void.
> 
> btw the work queue is only for sva. If there is no other caller this can be
> just kept in iommu-sva.c. No need to create a helper.

I think more than just SVA will need a work queue context to process
their faults.

Jason

Follow-Ups:
- RE: [PATCH v2 08/12] iommu: Prepare for separating SVA and IOPF
  - From: Tian, Kevin

References:
- [PATCH v2 00/12] iommu: Prepare to deliver page faults to user space
  - From: Lu Baolu
- [PATCH v2 08/12] iommu: Prepare for separating SVA and IOPF
  - From: Lu Baolu
- RE: [PATCH v2 08/12] iommu: Prepare for separating SVA and IOPF
  - From: Tian, Kevin

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