RE: [PATCH v2 4/6] iommufd/hw_pagetable: Support allocating nested parent domain

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Subject: RE: [PATCH v2 4/6] iommufd/hw_pagetable: Support allocating nested parent domain
From: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
Date: Mon, 9 Oct 2023 01:10:21 +0000
Accept-language: en-US
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>, "Martins, Joao" <joao.m.martins@xxxxxxxxxx>
In-reply-to: <20230928071528.26258-5-yi.l.liu@intel.com>
References: <20230928071528.26258-1-yi.l.liu@intel.com> <20230928071528.26258-5-yi.l.liu@intel.com>

> From: Liu, Yi L <yi.l.liu@xxxxxxxxx>
> Sent: Thursday, September 28, 2023 3:15 PM
> 
> This extends IOMMU_HWPT_ALLOC to allocate domains used as parent
> (stage-2)
> in nested translation.
> 
> Signed-off-by: Yi Liu <yi.l.liu@xxxxxxxxx>

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

References:
- [PATCH v2 0/6] iommufd support allocating nested parent domain
  - From: Yi Liu
- [PATCH v2 4/6] iommufd/hw_pagetable: Support allocating nested parent domain
  - From: Yi Liu

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