From: Vasant Hegde <vasant.hegde@amd.com>
To: Yi Liu <yi.l.liu@intel.com>,
joro@8bytes.org, jgg@nvidia.com, kevin.tian@intel.com,
baolu.lu@linux.intel.com
Cc: alex.williamson@redhat.com, robin.murphy@arm.com,
eric.auger@redhat.com, nicolinc@nvidia.com, kvm@vger.kernel.org,
chao.p.peng@linux.intel.com, iommu@lists.linux.dev
Subject: Re: [PATCH 0/6] Make set_dev_pasid op supportting domain replacement
Date: Thu, 15 Aug 2024 23:19:11 +0530 [thread overview]
Message-ID: <99f66c8d-57cf-4f0d-8545-b019dcf78a94@amd.com> (raw)
In-Reply-To: <20240628085538.47049-1-yi.l.liu@intel.com>
Hi All,
On 6/28/2024 2:25 PM, Yi Liu wrote:
> This splits the preparation works of the iommu and the Intel iommu driver
> out from the iommufd pasid attach/replace series. [1]
>
> To support domain replacement, the definition of the set_dev_pasid op
> needs to be enhanced. Meanwhile, the existing set_dev_pasid callbacks
> should be extended as well to suit the new definition.
IIUC this will remove PASID from old SVA domain and attaches to new SVA domain.
(basically attaching same dev/PASID to different process). Is that the correct?
So the expectation is replace existing PASID from PASID table only if old_domain
is passed. Otherwise sev_dev_pasid() should throw an error right?
-Vasant
next prev parent reply other threads:[~2024-08-15 17:49 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-06-28 8:55 [PATCH 0/6] Make set_dev_pasid op supportting domain replacement Yi Liu
2024-06-28 8:55 ` [PATCH 1/6] iommu: Pass old domain to set_dev_pasid op Yi Liu
2024-06-28 8:55 ` [PATCH 2/6] iommu/vt-d: Move intel_drain_pasid_prq() into intel_pasid_tear_down_entry() Yi Liu
2024-06-28 9:42 ` Baolu Lu
2024-06-28 10:51 ` Yi Liu
2024-07-10 8:25 ` Tian, Kevin
2024-06-28 8:55 ` [PATCH 3/6] iommu/vt-d: Make helpers support modifying present pasid entry Yi Liu
2024-06-28 9:52 ` Baolu Lu
2024-06-28 10:56 ` Yi Liu
2024-07-15 7:53 ` Tian, Kevin
2024-07-15 8:05 ` Yi Liu
2024-06-28 8:55 ` [PATCH 4/6] iommu/vt-d: Make intel_iommu_set_dev_pasid() to handle domain replacement Yi Liu
2024-07-15 7:58 ` Tian, Kevin
2024-06-28 8:55 ` [PATCH 5/6] iommu/vt-d: Add set_dev_pasid callback for nested domain Yi Liu
2024-06-28 8:55 ` [PATCH 6/6] iommu: Make set_dev_pasid op support domain replacement Yi Liu
2024-07-15 8:02 ` Tian, Kevin
2024-07-15 8:37 ` Yi Liu
2024-07-10 8:24 ` [PATCH 0/6] Make set_dev_pasid op supportting " Tian, Kevin
2024-07-11 18:41 ` Jason Gunthorpe
2024-07-15 8:16 ` Tian, Kevin
2024-07-15 12:19 ` Jason Gunthorpe
2024-07-15 8:23 ` Yi Liu
2024-07-15 12:19 ` Jason Gunthorpe
2024-07-16 2:07 ` Yi Liu
2024-07-11 18:37 ` Jason Gunthorpe
2024-07-15 8:11 ` Yi Liu
2024-07-15 12:16 ` Jason Gunthorpe
2024-08-15 17:49 ` Vasant Hegde [this message]
2024-08-16 1:19 ` Yi Liu
2024-08-16 2:49 ` Baolu Lu
2024-08-16 5:17 ` Vasant Hegde
2024-08-16 2:52 ` Baolu Lu
2024-08-16 6:08 ` Yi Liu
2024-08-16 5:19 ` Vasant Hegde
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