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From: Jason Gunthorpe <jgg@ziepe.ca>
To: Christoph Hellwig <hch@lst.de>
Cc: Joerg Roedel <joro@8bytes.org>,
	Alex Williamson <alex.williamson@redhat.com>,
	David Woodhouse <dwmw2@infradead.org>,
	Lu Baolu <baolu.lu@linux.intel.com>,
	Will Deacon <will@kernel.org>,
	Kirti Wankhede <kwankhede@nvidia.com>,
	Jacob Pan <jacob.jun.pan@linux.intel.com>,
	"Raj, Ashok" <ashok.raj@intel.com>, "Wu, Hao" <hao.wu@intel.com>,
	"Jiang, Dave" <dave.jiang@intel.com>,
	"Tian, Kevin" <kevin.tian@intel.com>,
	linux-arm-kernel@lists.infradead.org,
	iommu@lists.linux-foundation.org, kvm@vger.kernel.org
Subject: Re: more iommu dead code removal
Date: Mon, 10 May 2021 08:54:13 -0300	[thread overview]
Message-ID: <20210510115413.GE2047089@ziepe.ca> (raw)
In-Reply-To: <20210510065405.2334771-1-hch@lst.de>

On Mon, May 10, 2021 at 08:53:59AM +0200, Christoph Hellwig wrote:
> Hi all,
> 
> this is another series to remove dead code from the IOMMU subsystem,
> this time mostly about the hacky code to pass an iommu device in
> struct mdev_device and huge piles of support code.  All of this was
> merged two years ago and (fortunately) never got used.

Yes, I looked at this too. Intel has been merging dead code for a
while now. Ostensibly to prepare to get PASID support in.. But the
whole PASID thing looks to be redesigned from what was originally
imagined.

At least from VFIO I think the PASID support should not use this hacky
stuff, /dev/ioasid should provide a clean solution

Jason

      parent reply	other threads:[~2021-05-10 12:58 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-05-10  6:53 Christoph Hellwig
2021-05-10  6:54 ` [PATCH 1/6] iommu: remove the unused dev_has_feat method Christoph Hellwig
2021-05-10  6:54 ` [PATCH 2/6] iommu: remove the unused iommu_aux_get_pasid interface Christoph Hellwig
2021-05-10  6:54 ` [PATCH 3/6] vfio: remove the unused mdev iommu hook Christoph Hellwig
2021-05-10 15:54   ` Jason Gunthorpe
2021-05-13  3:28     ` Tian, Kevin
2021-05-13 12:00       ` Jason Gunthorpe
2021-05-14  6:27         ` Tian, Kevin
2021-05-14  6:54         ` Tian, Kevin
2021-05-14 12:19           ` Jason Gunthorpe
2021-05-14 12:58             ` Tian, Kevin
2021-05-14 13:31               ` Jason Gunthorpe
2021-05-17 12:22                 ` Joerg Roedel
2021-05-17 12:30                   ` Jason Gunthorpe
2021-05-17 12:53                     ` Joerg Roedel
2021-05-17 13:35                       ` Jason Gunthorpe
2021-05-17 15:35                         ` Joerg Roedel
2021-05-19 15:23                           ` Robin Murphy
2021-05-19 18:06                             ` Jason Gunthorpe
2021-05-19 23:12                               ` Tian, Kevin
2021-05-19 23:24                                 ` Jason Gunthorpe
2021-05-20 14:13                                   ` Robin Murphy
2021-05-20 14:34                                     ` Jason Gunthorpe
2021-05-24 18:18                                       ` Robin Murphy
2021-05-25  0:00                                         ` Jason Gunthorpe
2021-06-30  9:08                           ` Tian, Kevin
2021-07-22 13:34                             ` Christoph Hellwig
2021-07-23  5:36                               ` Tian, Kevin
2021-07-23  5:41                                 ` Christoph Hellwig
2021-07-23  5:44                                   ` Tian, Kevin
2021-07-22  6:02                           ` Tian, Kevin
2021-05-14 13:17         ` Tian, Kevin
2021-05-14 13:39           ` Jason Gunthorpe
2021-05-14 14:28             ` Tian, Kevin
2021-05-14 14:44               ` Jason Gunthorpe
2021-05-10  6:54 ` [PATCH 4/6] iommu: remove iommu_aux_{attach,detach}_device Christoph Hellwig
2021-05-10  6:54 ` [PATCH 5/6] iommu: remove IOMMU_DEV_FEAT_AUX Christoph Hellwig
2021-05-10  6:54 ` [PATCH 6/6] iommu: remove iommu_dev_feature_enabled Christoph Hellwig
2021-05-10 11:54 ` Jason Gunthorpe [this message]

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