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

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Message-ID: <d9934ef7-3bf0-b004-3fe9-e0adbcae5c05@redhat.com>
Date:   Tue, 16 Mar 2021 09:22:11 +0100
From:   Auger Eric <eric.auger@...hat.com>
To:     Krishna Reddy <vdumpa@...dia.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 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
> 
> -KR
>