Re: [PATCH v7 3/3] iommu/vt-d: Add iotlb flush for nested domain

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To: "Tian, Kevin" <kevin.tian@xxxxxxxxx>, "joro@xxxxxxxxxx" <joro@xxxxxxxxxx>, "alex.williamson@xxxxxxxxxx" <alex.williamson@xxxxxxxxxx>, "jgg@xxxxxxxxxx" <jgg@xxxxxxxxxx>, "robin.murphy@xxxxxxx" <robin.murphy@xxxxxxx>, "baolu.lu@xxxxxxxxxxxxxxx" <baolu.lu@xxxxxxxxxxxxxxx>
Subject: Re: [PATCH v7 3/3] iommu/vt-d: Add iotlb flush for nested domain
From: Yi Liu <yi.l.liu@xxxxxxxxx>
Date: Tue, 12 Dec 2023 11:58:52 +0800
Cc: "cohuck@xxxxxxxxxx" <cohuck@xxxxxxxxxx>, "eric.auger@xxxxxxxxxx" <eric.auger@xxxxxxxxxx>, "nicolinc@xxxxxxxxxx" <nicolinc@xxxxxxxxxx>, "kvm@xxxxxxxxxxxxxxx" <kvm@xxxxxxxxxxxxxxx>, "mjrosato@xxxxxxxxxxxxx" <mjrosato@xxxxxxxxxxxxx>, "chao.p.peng@xxxxxxxxxxxxxxx" <chao.p.peng@xxxxxxxxxxxxxxx>, "yi.y.sun@xxxxxxxxxxxxxxx" <yi.y.sun@xxxxxxxxxxxxxxx>, "peterx@xxxxxxxxxx" <peterx@xxxxxxxxxx>, "jasowang@xxxxxxxxxx" <jasowang@xxxxxxxxxx>, "shameerali.kolothum.thodi@xxxxxxxxxx" <shameerali.kolothum.thodi@xxxxxxxxxx>, "lulu@xxxxxxxxxx" <lulu@xxxxxxxxxx>, "suravee.suthikulpanit@xxxxxxx" <suravee.suthikulpanit@xxxxxxx>, "iommu@xxxxxxxxxxxxxxx" <iommu@xxxxxxxxxxxxxxx>, "linux-kernel@xxxxxxxxxxxxxxx" <linux-kernel@xxxxxxxxxxxxxxx>, "linux-kselftest@xxxxxxxxxxxxxxx" <linux-kselftest@xxxxxxxxxxxxxxx>, "Duan, Zhenzhong" <zhenzhong.duan@xxxxxxxxx>, "joao.m.martins@xxxxxxxxxx" <joao.m.martins@xxxxxxxxxx>, "Zeng, Xin" <xin.zeng@xxxxxxxxx>, "Zhao, Yan Y" <yan.y.zhao@xxxxxxxxx>
In-reply-to: <BN9PR11MB52761F99B115765CCBCAC9F48CB4A@BN9PR11MB5276.namprd11.prod.outlook.com>
User-agent: Mozilla Thunderbird

On 2023/11/20 16:32, Tian, Kevin wrote:

From: Liu, Yi L <yi.l.liu@xxxxxxxxx>
Sent: Friday, November 17, 2023 9:18 PM
+
+		if (inv_info.__reserved || (inv_info.flags &
~IOMMU_VTD_INV_FLAGS_LEAF) ||
+		    !IS_ALIGNED(inv_info.addr, VTD_PAGE_SIZE)) {
+			ret = -EINVAL;
+			break;
+		}


-EOPNOTSUPP for the first two checks.

yes.

--
Regards,
Yi Liu

References:
- [PATCH v7 0/3] Add Intel VT-d nested translation (part 2/2)
  - From: Yi Liu
- [PATCH v7 3/3] iommu/vt-d: Add iotlb flush for nested domain
  - From: Yi Liu
- RE: [PATCH v7 3/3] iommu/vt-d: Add iotlb flush for nested domain
  - From: Tian, Kevin

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