From: Jason Gunthorpe <jgg@nvidia.com>
To: "Tian, Kevin" <kevin.tian@intel.com>
Cc: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>,
"iommu@lists.linux.dev" <iommu@lists.linux.dev>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"robin.murphy@arm.com" <robin.murphy@arm.com>,
"will@kernel.org" <will@kernel.org>,
"joro@8bytes.org" <joro@8bytes.org>,
"ryan.roberts@arm.com" <ryan.roberts@arm.com>,
"nicolinc@nvidia.com" <nicolinc@nvidia.com>,
"mshavit@google.com" <mshavit@google.com>,
"eric.auger@redhat.com" <eric.auger@redhat.com>,
"joao.m.martins@oracle.com" <joao.m.martins@oracle.com>,
"jiangkunkun@huawei.com" <jiangkunkun@huawei.com>,
"zhukeqian1@huawei.com" <zhukeqian1@huawei.com>,
"linuxarm@huawei.com" <linuxarm@huawei.com>
Subject: Re: [PATCH v3 3/4] iommu/arm-smmu-v3: Add support for dirty tracking in domain alloc
Date: Wed, 22 May 2024 09:38:15 -0300 [thread overview]
Message-ID: <20240522123815.GV20229@nvidia.com> (raw)
In-Reply-To: <BN9PR11MB52765EF502C246B4C344CE888CEB2@BN9PR11MB5276.namprd11.prod.outlook.com>
On Wed, May 22, 2024 at 07:16:27AM +0000, Tian, Kevin wrote:
> > case ARM_SMMU_DOMAIN_S2:
> > - ias = smmu->ias;
> > - oas = smmu->oas;
> > + pgtbl_cfg.ias = smmu->ias;
> > + pgtbl_cfg.oas = smmu->oas;
> > fmt = ARM_64_LPAE_S2;
> > break;
>
> so dirty-tracking is not supported by s2? what about nesting?
To be done later IIRC
> if this is desired then attempting to set dirty_tracking on a s2 domain
> should be rejected with an error.
Yes
Jason
WARNING: multiple messages have this Message-ID (diff)
From: Jason Gunthorpe <jgg@nvidia.com>
To: "Tian, Kevin" <kevin.tian@intel.com>
Cc: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>,
"iommu@lists.linux.dev" <iommu@lists.linux.dev>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>,
"robin.murphy@arm.com" <robin.murphy@arm.com>,
"will@kernel.org" <will@kernel.org>,
"joro@8bytes.org" <joro@8bytes.org>,
"ryan.roberts@arm.com" <ryan.roberts@arm.com>,
"nicolinc@nvidia.com" <nicolinc@nvidia.com>,
"mshavit@google.com" <mshavit@google.com>,
"eric.auger@redhat.com" <eric.auger@redhat.com>,
"joao.m.martins@oracle.com" <joao.m.martins@oracle.com>,
"jiangkunkun@huawei.com" <jiangkunkun@huawei.com>,
"zhukeqian1@huawei.com" <zhukeqian1@huawei.com>,
"linuxarm@huawei.com" <linuxarm@huawei.com>
Subject: Re: [PATCH v3 3/4] iommu/arm-smmu-v3: Add support for dirty tracking in domain alloc
Date: Wed, 22 May 2024 09:38:15 -0300 [thread overview]
Message-ID: <20240522123815.GV20229@nvidia.com> (raw)
In-Reply-To: <BN9PR11MB52765EF502C246B4C344CE888CEB2@BN9PR11MB5276.namprd11.prod.outlook.com>
On Wed, May 22, 2024 at 07:16:27AM +0000, Tian, Kevin wrote:
> > case ARM_SMMU_DOMAIN_S2:
> > - ias = smmu->ias;
> > - oas = smmu->oas;
> > + pgtbl_cfg.ias = smmu->ias;
> > + pgtbl_cfg.oas = smmu->oas;
> > fmt = ARM_64_LPAE_S2;
> > break;
>
> so dirty-tracking is not supported by s2? what about nesting?
To be done later IIRC
> if this is desired then attempting to set dirty_tracking on a s2 domain
> should be rejected with an error.
Yes
Jason
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http://lists.infradead.org/mailman/listinfo/linux-arm-kernel
next prev parent reply other threads:[~2024-05-22 12:38 UTC|newest]
Thread overview: 76+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-30 13:43 [PATCH v3 0/4] iommu/smmuv3: Add IOMMUFD dirty tracking support for SMMUv3 Shameer Kolothum
2024-04-30 13:43 ` Shameer Kolothum
2024-04-30 13:43 ` [PATCH v3 1/4] iommu/arm-smmu-v3: Add feature detection for HTTU Shameer Kolothum
2024-04-30 13:43 ` Shameer Kolothum
2024-05-22 7:02 ` Tian, Kevin
2024-05-22 7:02 ` Tian, Kevin
2024-04-30 13:43 ` [PATCH v3 2/4] iommu/io-pgtable-arm: Add read_and_clear_dirty() support Shameer Kolothum
2024-04-30 13:43 ` Shameer Kolothum
2024-04-30 14:51 ` Ryan Roberts
2024-04-30 14:51 ` Ryan Roberts
2024-05-12 12:51 ` Jason Gunthorpe
2024-05-12 12:51 ` Jason Gunthorpe
2024-05-22 7:12 ` Tian, Kevin
2024-05-22 7:12 ` Tian, Kevin
2024-05-22 12:37 ` Jason Gunthorpe
2024-05-22 12:37 ` Jason Gunthorpe
2024-05-22 14:03 ` Shameerali Kolothum Thodi
2024-05-22 14:03 ` Shameerali Kolothum Thodi
2024-05-22 14:37 ` Joao Martins
2024-05-22 14:37 ` Joao Martins
2024-05-22 16:56 ` Jason Gunthorpe
2024-05-22 16:56 ` Jason Gunthorpe
2024-05-22 17:10 ` Joao Martins
2024-05-22 17:10 ` Joao Martins
2024-05-22 17:50 ` Jason Gunthorpe
2024-05-22 17:50 ` Jason Gunthorpe
2024-05-22 18:15 ` Joao Martins
2024-05-22 18:15 ` Joao Martins
2024-05-22 18:39 ` Joao Martins
2024-05-22 18:39 ` Joao Martins
2024-05-23 3:30 ` Tian, Kevin
2024-05-23 3:30 ` Tian, Kevin
2024-05-24 11:30 ` Joao Martins
2024-05-24 11:30 ` Joao Martins
2024-05-24 14:07 ` Jason Gunthorpe
2024-05-24 14:07 ` Jason Gunthorpe
2024-05-27 1:21 ` Tian, Kevin
2024-05-27 1:21 ` Tian, Kevin
2024-05-27 9:50 ` Joao Martins
2024-05-27 9:50 ` Joao Martins
2024-06-01 18:55 ` Jason Gunthorpe
2024-06-01 18:55 ` Jason Gunthorpe
2024-06-03 18:50 ` Joao Martins
2024-06-03 18:50 ` Joao Martins
2024-04-30 13:43 ` [PATCH v3 3/4] iommu/arm-smmu-v3: Add support for dirty tracking in domain alloc Shameer Kolothum
2024-04-30 13:43 ` Shameer Kolothum
2024-04-30 15:05 ` Ryan Roberts
2024-04-30 15:05 ` Ryan Roberts
2024-05-12 12:57 ` Jason Gunthorpe
2024-05-12 12:57 ` Jason Gunthorpe
2024-05-22 7:16 ` Tian, Kevin
2024-05-22 7:16 ` Tian, Kevin
2024-05-22 12:38 ` Jason Gunthorpe [this message]
2024-05-22 12:38 ` Jason Gunthorpe
2024-05-22 14:30 ` Shameerali Kolothum Thodi
2024-05-22 14:30 ` Shameerali Kolothum Thodi
2024-05-22 23:49 ` Tian, Kevin
2024-05-22 23:49 ` Tian, Kevin
2024-04-30 13:43 ` [PATCH v3 4/4] iommu/arm-smmu-v3: Enable HTTU for stage1 with io-pgtable mapping Shameer Kolothum
2024-04-30 13:43 ` Shameer Kolothum
2024-05-12 12:08 ` Jason Gunthorpe
2024-05-12 12:08 ` Jason Gunthorpe
2024-05-22 7:19 ` Tian, Kevin
2024-05-22 7:19 ` Tian, Kevin
2024-05-22 12:39 ` Jason Gunthorpe
2024-05-22 12:39 ` Jason Gunthorpe
2024-05-22 23:52 ` Tian, Kevin
2024-05-22 23:52 ` Tian, Kevin
2024-05-22 13:26 ` Shameerali Kolothum Thodi
2024-05-22 13:26 ` Shameerali Kolothum Thodi
2024-05-22 13:41 ` Jason Gunthorpe
2024-05-22 13:41 ` Jason Gunthorpe
2024-05-12 12:58 ` [PATCH v3 0/4] iommu/smmuv3: Add IOMMUFD dirty tracking support for SMMUv3 Jason Gunthorpe
2024-05-12 12:58 ` Jason Gunthorpe
2024-05-22 13:28 ` Shameerali Kolothum Thodi
2024-05-22 13:28 ` Shameerali Kolothum Thodi
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