From: Jason Gunthorpe <jgg@nvidia.com>
To: "Tian, Kevin" <kevin.tian@intel.com>
Cc: Baolu Lu <baolu.lu@linux.intel.com>,
Joerg Roedel <joro@8bytes.org>,
Christoph Hellwig <hch@infradead.org>,
"Raj, Ashok" <ashok.raj@intel.com>, Will Deacon <will@kernel.org>,
Robin Murphy <robin.murphy@arm.com>,
Jean-Philippe Brucker <jean-philippe@linaro.com>,
"Jiang, Dave" <dave.jiang@intel.com>,
Vinod Koul <vkoul@kernel.org>, Eric Auger <eric.auger@redhat.com>,
"Liu, Yi L" <yi.l.liu@intel.com>,
"Pan, Jacob jun" <jacob.jun.pan@intel.com>,
Zhangfei Gao <zhangfei.gao@linaro.org>,
"Zhu, Tony" <tony.zhu@intel.com>,
"iommu@lists.linux.dev" <iommu@lists.linux.dev>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
Jean-Philippe Brucker <jean-philippe@linaro.org>
Subject: Re: [PATCH v10 04/12] iommu: Add attach/detach_dev_pasid iommu interface
Date: Thu, 28 Jul 2022 08:59:45 -0300 [thread overview]
Message-ID: <YuJ6MXoNTj0RKCb8@nvidia.com> (raw)
In-Reply-To: <BN9PR11MB52766C3D37FA985DEBDC30C78C969@BN9PR11MB5276.namprd11.prod.outlook.com>
On Thu, Jul 28, 2022 at 03:06:47AM +0000, Tian, Kevin wrote:
> > Then we don't need this weirdo check in the core iommu code at all.
>
> and then we could also move group->pasid_array to device->pasid_array
> with this approach. Though the end result doesn't change i.e. still only
> the singleton group can enable pasid the iommu core can just stick to
> the device manner now.
I don't see why, the group is still logically the unit of attachment
in the iommu area, and if we have a multi-device group it just means
we iterate over all the devices in the group when doing pasid set, no
different than a RID.
Jason
next prev parent reply other threads:[~2022-07-28 16:59 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-07-05 5:06 [PATCH v10 00/12] iommu: SVA and IOPF refactoring Lu Baolu
2022-07-05 5:06 ` [PATCH v10 01/12] iommu: Add max_pasids field in struct iommu_device Lu Baolu
2022-07-23 13:57 ` Jason Gunthorpe
2022-07-31 11:54 ` Yi Liu
2022-07-31 13:33 ` Baolu Lu
2022-07-05 5:07 ` [PATCH v10 02/12] iommu: Add max_pasids field in struct dev_iommu Lu Baolu
2022-07-23 14:02 ` Jason Gunthorpe
2022-07-31 11:55 ` Yi Liu
2022-07-05 5:07 ` [PATCH v10 03/12] iommu: Remove SVM_FLAG_SUPERVISOR_MODE support Lu Baolu
2022-07-31 12:01 ` Yi Liu
2022-07-31 13:39 ` Baolu Lu
2022-07-05 5:07 ` [PATCH v10 04/12] iommu: Add attach/detach_dev_pasid iommu interface Lu Baolu
2022-07-07 1:51 ` Tian, Kevin
2022-07-23 14:11 ` Jason Gunthorpe
2022-07-24 7:03 ` Baolu Lu
2022-07-25 14:40 ` Jason Gunthorpe
2022-07-26 6:23 ` Baolu Lu
2022-07-26 13:57 ` Jason Gunthorpe
2022-07-27 3:20 ` Tian, Kevin
2022-07-27 11:53 ` Jason Gunthorpe
2022-07-28 3:06 ` Tian, Kevin
2022-07-28 11:59 ` Jason Gunthorpe [this message]
2022-07-29 2:49 ` Baolu Lu
2022-07-29 2:56 ` Tian, Kevin
2022-07-29 3:20 ` Baolu Lu
2022-07-29 4:22 ` Tian, Kevin
2022-07-30 6:17 ` Baolu Lu
2022-07-29 2:51 ` Tian, Kevin
2022-07-29 12:22 ` Jason Gunthorpe
2022-07-30 6:23 ` Baolu Lu
2022-07-28 2:44 ` Baolu Lu
2022-07-28 6:27 ` Baolu Lu
2022-08-02 2:19 ` Baolu Lu
2022-08-02 12:37 ` Jason Gunthorpe
2022-08-03 13:07 ` Baolu Lu
2022-08-03 19:03 ` Jason Gunthorpe
2022-08-04 2:03 ` Tian, Kevin
2022-08-04 2:42 ` Baolu Lu
2022-07-24 7:23 ` Baolu Lu
2022-07-24 8:39 ` Baolu Lu
2022-07-24 9:13 ` Baolu Lu
2022-07-25 7:46 ` Tian, Kevin
2022-07-25 10:11 ` Baolu Lu
2022-07-31 12:10 ` Yi Liu
2022-07-05 5:07 ` [PATCH v10 05/12] iommu: Add IOMMU SVA domain support Lu Baolu
2022-07-07 1:52 ` Tian, Kevin
2022-07-07 3:01 ` Baolu Lu
2022-07-23 14:15 ` Jason Gunthorpe
2022-07-31 12:19 ` Yi Liu
2022-07-05 5:07 ` [PATCH v10 06/12] iommu/vt-d: Add " Lu Baolu
2022-07-23 14:16 ` Jason Gunthorpe
2022-07-31 12:20 ` Yi Liu
2022-07-05 5:07 ` [PATCH v10 07/12] arm-smmu-v3/sva: " Lu Baolu
2022-07-23 14:20 ` Jason Gunthorpe
2022-07-24 11:58 ` Baolu Lu
2022-07-05 5:07 ` [PATCH v10 08/12] iommu/sva: Refactoring iommu_sva_bind/unbind_device() Lu Baolu
2022-07-05 17:43 ` Jean-Philippe Brucker
2022-07-07 1:56 ` Tian, Kevin
2022-07-07 3:02 ` Baolu Lu
2022-07-23 14:26 ` Jason Gunthorpe
2022-07-24 13:48 ` Baolu Lu
2022-07-25 7:39 ` Jean-Philippe Brucker
2022-07-25 8:02 ` Tian, Kevin
2022-07-25 8:47 ` Jean-Philippe Brucker
2022-07-25 9:33 ` Baolu Lu
2022-07-25 9:52 ` Jean-Philippe Brucker
2022-07-25 14:46 ` Jason Gunthorpe
2022-07-25 7:50 ` Tian, Kevin
2022-07-25 10:22 ` Baolu Lu
2022-07-25 14:47 ` Jason Gunthorpe
2022-07-26 8:47 ` Baolu Lu
2022-07-31 12:36 ` Yi Liu
2022-07-31 13:45 ` Baolu Lu
2022-07-31 12:55 ` Yi Liu
2022-07-31 13:51 ` Baolu Lu
2022-07-05 5:07 ` [PATCH v10 09/12] iommu: Remove SVA related callbacks from iommu ops Lu Baolu
2022-07-23 14:27 ` Jason Gunthorpe
2022-07-31 12:38 ` Yi Liu
2022-07-05 5:07 ` [PATCH v10 10/12] iommu: Prepare IOMMU domain for IOPF Lu Baolu
2022-07-07 1:58 ` Tian, Kevin
2022-07-23 14:33 ` Jason Gunthorpe
2022-07-24 14:04 ` Baolu Lu
2022-07-25 14:49 ` Jason Gunthorpe
2022-07-31 12:50 ` Yi Liu
2022-07-31 13:47 ` Baolu Lu
2022-07-05 5:07 ` [PATCH v10 11/12] iommu: Per-domain I/O page fault handling Lu Baolu
2022-07-07 2:06 ` Tian, Kevin
2022-07-23 14:34 ` Jason Gunthorpe
2022-07-05 5:07 ` [PATCH v10 12/12] iommu: Rename iommu-sva-lib.{c,h} Lu Baolu
2022-07-23 14:34 ` Jason Gunthorpe
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