linux-kernel - RE: [PATCH v7 7/8] iommu/vt-d: Add nested domain allocation

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Message-ID: <BN9PR11MB5276D670DF35BEDD75FDE9C38CDEA@BN9PR11MB5276.namprd11.prod.outlook.com>
Date:   Wed, 25 Oct 2023 07:34:20 +0000
From:   "Tian, Kevin" <kevin.tian@...el.com>
To:     Jason Gunthorpe <jgg@...dia.com>, "Liu, Yi L" <yi.l.liu@...el.com>
CC:     "joro@...tes.org" <joro@...tes.org>,
        "alex.williamson@...hat.com" <alex.williamson@...hat.com>,
        "robin.murphy@....com" <robin.murphy@....com>,
        "baolu.lu@...ux.intel.com" <baolu.lu@...ux.intel.com>,
        "cohuck@...hat.com" <cohuck@...hat.com>,
        "eric.auger@...hat.com" <eric.auger@...hat.com>,
        "nicolinc@...dia.com" <nicolinc@...dia.com>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>,
        "mjrosato@...ux.ibm.com" <mjrosato@...ux.ibm.com>,
        "chao.p.peng@...ux.intel.com" <chao.p.peng@...ux.intel.com>,
        "yi.y.sun@...ux.intel.com" <yi.y.sun@...ux.intel.com>,
        "peterx@...hat.com" <peterx@...hat.com>,
        "jasowang@...hat.com" <jasowang@...hat.com>,
        "shameerali.kolothum.thodi@...wei.com" 
        <shameerali.kolothum.thodi@...wei.com>,
        "lulu@...hat.com" <lulu@...hat.com>,
        "suravee.suthikulpanit@....com" <suravee.suthikulpanit@....com>,
        "iommu@...ts.linux.dev" <iommu@...ts.linux.dev>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-kselftest@...r.kernel.org" <linux-kselftest@...r.kernel.org>,
        "Duan, Zhenzhong" <zhenzhong.duan@...el.com>,
        "Martins, Joao" <joao.m.martins@...cle.com>
Subject: RE: [PATCH v7 7/8] iommu/vt-d: Add nested domain allocation

> From: Jason Gunthorpe <jgg@...dia.com>
> Sent: Wednesday, October 25, 2023 7:03 AM
>
> @@ -4849,6 +4855,7 @@ static void *intel_iommu_hw_info(struct device
> *dev, u32 *length, u32 *type)
>  	if (!vtd)
>  		return ERR_PTR(-ENOMEM);
> 
> +	vtd->flags = IOMMU_HW_INFO_VTD_ERRATA_772415_SPR17;

this doesn't belong to this patch. otherwise looks good:

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