linux-kernel - RE: [PATCH v11 00/13] SMMUv3 Nested Stage Setup (VFIO part)

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Message-ID: <BY5PR12MB3764F977D65938544A1138BDB36C9@BY5PR12MB3764.namprd12.prod.outlook.com>
Date:   Mon, 15 Mar 2021 18:04:14 +0000
From:   Krishna Reddy <vdumpa@...dia.com>
To:     Eric Auger <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>
Subject: RE: [PATCH v11 00/13] SMMUv3 Nested Stage Setup (VFIO part)

Tested-by: Krishna Reddy <vdumpa@...dia.com>

> 1) pass the guest stage 1 configuration
> 3) invalidate stage 1 related caches

Validated Nested SMMUv3 translations for NVMe PCIe device from Guest VM along with patch series "v13 SMMUv3 Nested Stage Setup (IOMMU 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.

-KR