RE: [PATCH v4 12/12] iommu/vt-d: Disallow nesting on domains with read-only mappings

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

To: Baolu Lu <baolu.lu@xxxxxxxxxxxxxxx>, "Liu, Yi L" <yi.l.liu@xxxxxxxxx>, "joro@xxxxxxxxxx" <joro@xxxxxxxxxx>, "alex.williamson@xxxxxxxxxx" <alex.williamson@xxxxxxxxxx>, "jgg@xxxxxxxxxx" <jgg@xxxxxxxxxx>, "robin.murphy@xxxxxxx" <robin.murphy@xxxxxxx>
Subject: RE: [PATCH v4 12/12] iommu/vt-d: Disallow nesting on domains with read-only mappings
From: "Tian, Kevin" <kevin.tian@xxxxxxxxx>
Date: Thu, 3 Aug 2023 04:00:35 +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>
In-reply-to: <b099a333-65b1-de9e-742d-d12f4fb58f67@linux.intel.com>
Thread-index: AQHZvh/xpJ4WurReCk6xBF9LLfi+N6/Wr/7AgAFIfYCAAAlG8A==
Thread-topic: [PATCH v4 12/12] iommu/vt-d: Disallow nesting on domains with read-only mappings

> From: Baolu Lu <baolu.lu@xxxxxxxxxxxxxxx>
> Sent: Thursday, August 3, 2023 11:27 AM
> 
> On 2023/8/2 15:59, Tian, Kevin wrote:
> >> From: Liu, Yi L <yi.l.liu@xxxxxxxxx>
> >> Sent: Monday, July 24, 2023 7:14 PM
> >>
> >> +	u8 read_only_mapped:1;		/* domain has mappings with
> >> read-only
> >> +					 * permission.
> >> +					 */
> >> +	u8 set_nested:1;		/* has other domains nested on it */
> >
> > what about "is_parent"?
> 
> "is_parent" is still a bit generic. How about "is_nested_parent"?
> 

looks good.

References:
- [PATCH v4 00/12] Add Intel VT-d nested translation
  - From: Yi Liu
- [PATCH v4 12/12] iommu/vt-d: Disallow nesting on domains with read-only mappings
  - From: Yi Liu
- RE: [PATCH v4 12/12] iommu/vt-d: Disallow nesting on domains with read-only mappings
  - From: Tian, Kevin
- Re: [PATCH v4 12/12] iommu/vt-d: Disallow nesting on domains with read-only mappings
  - From: Baolu Lu

Prev by Date: RE: [PATCH v4 09/12] iommu/vt-d: Add iotlb flush for nested domain
Next by Date: Re: [PATCH v4 09/12] iommu/vt-d: Add iotlb flush for nested domain
Previous by thread: Re: [PATCH v4 12/12] iommu/vt-d: Disallow nesting on domains with read-only mappings
Next by thread: [PATCH v2 00/35] arm64/gcs: Provide support for GCS in userspace
Index(es):
- Date
- Thread

[Index of Archives] [Linux Wireless] [Linux Kernel] [ATH6KL] [Linux Bluetooth] [Linux Netdev] [Kernel Newbies] [Share Photos] [IDE] [Security] [Git] [Netfilter] [Bugtraq] [Yosemite News] [MIPS Linux] [ARM Linux] [Linux Security] [Linux RAID] [Linux ATA RAID] [Samba] [Device Mapper]