linux-kernel - RE: [PATCH v13 00/15] SMMUv3 Nested Stage Setup (IOMMU part)

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Message-ID: <BY5PR12MB376487CE3B3C36E59BEDEC5AB36B9@BY5PR12MB3764.namprd12.prod.outlook.com>
Date:   Tue, 16 Mar 2021 18:10:18 +0000
From:   Krishna Reddy <vdumpa@...dia.com>
To:     Auger Eric <eric.auger@...hat.com>,
        "eric.auger.pro@...il.com" <eric.auger.pro@...il.com>,
        "iommu@...ts.linux-foundation.org" <iommu@...ts.linux-foundation.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "kvmarm@...ts.cs.columbia.edu" <kvmarm@...ts.cs.columbia.edu>,
        "will@...nel.org" <will@...nel.org>,
        "joro@...tes.org" <joro@...tes.org>,
        "maz@...nel.org" <maz@...nel.org>,
        "robin.murphy@....com" <robin.murphy@....com>,
        "alex.williamson@...hat.com" <alex.williamson@...hat.com>
CC:     "jean-philippe@...aro.org" <jean-philippe@...aro.org>,
        "vivek.gautam@....com" <vivek.gautam@....com>,
        "zhangfei.gao@...aro.org" <zhangfei.gao@...aro.org>,
        Sachin Nikam <Snikam@...dia.com>,
        Yu-Huan Hsu <YHsu@...dia.com>,
        Bryan Huntsman <bhuntsman@...dia.com>,
        Vikram Sethi <vsethi@...dia.com>,
        Nicolin Chen <nicolinc@...dia.com>,
        Nate Watterson <nwatterson@...dia.com>,
        Pritesh Raithatha <praithatha@...dia.com>
Subject: RE: [PATCH v13 00/15] SMMUv3 Nested Stage Setup (IOMMU part)

> Hi Krishna,
> On 3/15/21 7:04 PM, Krishna Reddy wrote:
> > Tested-by: Krishna Reddy <vdumpa@...dia.com>
> >
> >> 1) pass the guest stage 1 configuration
> >
> > Validated Nested SMMUv3 translations for NVMe PCIe device from Guest VM
> along with patch series "v11 SMMUv3 Nested Stage Setup (VFIO part)" and
> QEMU patch series "vSMMUv3/pSMMUv3 2 stage VFIO integration" from
> v5.2.0-2stage-rfcv8.
> > NVMe PCIe device is functional with 2-stage translations and no issues
> observed.
> Thank you very much for your testing efforts. For your info, there are more
> recent kernel series:
> [PATCH v14 00/13] SMMUv3 Nested Stage Setup (IOMMU part) (Feb 23) [PATCH
> v12 00/13] SMMUv3 Nested Stage Setup (VFIO part) (Feb 23)
> 
> working along with QEMU RFC
> [RFC v8 00/28] vSMMUv3/pSMMUv3 2 stage VFIO integration (Feb 25)
> 
> If you have cycles to test with those, this would be higly appreciated.
 
Thanks Eric for the latest patches. Will validate and update. 
Feel free to reach out me for validating future patch sets as necessary.

-KR