linux-kernel - RE: [PATCH v5 4/4] vfio: Support IO page table replacement

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Message-ID: <BN9PR11MB527616A7E7D02A053EC30DAB8C849@BN9PR11MB5276.namprd11.prod.outlook.com>
Date:   Fri, 24 Mar 2023 03:04:19 +0000
From:   "Tian, Kevin" <kevin.tian@...el.com>
To:     Nicolin Chen <nicolinc@...dia.com>,
        "jgg@...dia.com" <jgg@...dia.com>,
        "joro@...tes.org" <joro@...tes.org>,
        "will@...nel.org" <will@...nel.org>,
        "robin.murphy@....com" <robin.murphy@....com>,
        "alex.williamson@...hat.com" <alex.williamson@...hat.com>,
        "shuah@...nel.org" <shuah@...nel.org>
CC:     "Liu, Yi L" <yi.l.liu@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "iommu@...ts.linux.dev" <iommu@...ts.linux.dev>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "linux-kselftest@...r.kernel.org" <linux-kselftest@...r.kernel.org>,
        "mjrosato@...ux.ibm.com" <mjrosato@...ux.ibm.com>,
        "farman@...ux.ibm.com" <farman@...ux.ibm.com>
Subject: RE: [PATCH v5 4/4] vfio: Support IO page table replacement

> From: Nicolin Chen <nicolinc@...dia.com>
> Sent: Thursday, March 23, 2023 4:33 PM
> 
> Now both the physical path and the emulated path should support an IO
> page
> table replacement. Call iommufd_device_replace/iommufd_access_replace(),
> when vdev->iommufd_attached is true.
> 
> Also update the VFIO_DEVICE_ATTACH_IOMMUFD_PT kdoc in the uAPI
> header.
> 
> Signed-off-by: Nicolin Chen <nicolinc@...dia.com>

Reviewed-by: Kevin Tian <kevin.tian@...el.com>