RE: [PATCH v4 5/5] vfio: Support IO page table replacement

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To: Nicolin Chen <nicolinc@xxxxxxxxxx>, "jgg@xxxxxxxxxx" <jgg@xxxxxxxxxx>, "joro@xxxxxxxxxx" <joro@xxxxxxxxxx>, "will@xxxxxxxxxx" <will@xxxxxxxxxx>, "robin.murphy@xxxxxxx" <robin.murphy@xxxxxxx>, "alex.williamson@xxxxxxxxxx" <alex.williamson@xxxxxxxxxx>, "shuah@xxxxxxxxxx" <shuah@xxxxxxxxxx>
Subject: RE: [PATCH v4 5/5] vfio: Support IO page table replacement
From: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
Date: Fri, 10 Mar 2023 11:53:56 +0000
Accept-language: en-US
Cc: "Liu, Yi L" <yi.l.liu@xxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "iommu@xxxxxxxxxxxxxxx" <iommu@xxxxxxxxxxxxxxx>, "kvm@xxxxxxxxxxxxxxx" <kvm@xxxxxxxxxxxxxxx>, "linux-kselftest@xxxxxxxxxxxxxxx" <linux-kselftest@xxxxxxxxxxxxxxx>, "mjrosato@xxxxxxxxxxxxx" <mjrosato@xxxxxxxxxxxxx>, "farman@xxxxxxxxxxxxx" <farman@xxxxxxxxxxxxx>
In-reply-to: <600343ffb282ff3bed5eb98a9255c0084d01a859.1678284812.git.nicolinc@nvidia.com>
Thread-index: AQHZUcoFRLfg4HbeIES7vtug94baI67z6iAQ
Thread-topic: [PATCH v4 5/5] vfio: Support IO page table replacement

> From: Nicolin Chen <nicolinc@xxxxxxxxxx>
> Sent: Wednesday, March 8, 2023 10:26 PM
> 
> Now both the physical path and the emulated path should support an IO
> page
> table replacement.
> 
> Call iommufd_device_replace() when vdev->iommufd_attached is true.
> 

why is replace enabled only in physical path in this patch?

Follow-Ups:
- Re: [PATCH v4 5/5] vfio: Support IO page table replacement
  - From: Nicolin Chen

References:
- [PATCH v4 0/5] Add IO page table replacement support
  - From: Nicolin Chen
- [PATCH v4 5/5] vfio: Support IO page table replacement
  - From: Nicolin Chen

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