From: Christoph Hellwig <hch@lst.de>
To: "Tian, Kevin" <kevin.tian@intel.com>
Cc: "kvm@vger.kernel.org" <kvm@vger.kernel.org>,
Will Deacon <will@kernel.org>,
Kirti Wankhede <kwankhede@nvidia.com>,
"iommu@lists.linux-foundation.org"
<iommu@lists.linux-foundation.org>,
Jason Gunthorpe <jgg@ziepe.ca>,
Alex Williamson <alex.williamson@redhat.com>,
Robin Murphy <robin.murphy@arm.com>,
David Woodhouse <dwmw2@infradead.org>,
Christoph Hellwig <hch@lst.de>,
"linux-arm-kernel@lists.infradead.org"
<linux-arm-kernel@lists.infradead.org>
Subject: Re: [PATCH 3/6] vfio: remove the unused mdev iommu hook
Date: Thu, 22 Jul 2021 15:34:50 +0200 [thread overview]
Message-ID: <20210722133450.GA29155@lst.de> (raw)
In-Reply-To: <BN9PR11MB54331FC6BB31E8CBF11914A48C019@BN9PR11MB5433.namprd11.prod.outlook.com>
On Wed, Jun 30, 2021 at 09:08:19AM +0000, Tian, Kevin wrote:
> The iommu layer should maintain above attaching status per device and per
> iommu domain. There is no mdev/subdev concept in the iommu layer. It's
> just about RID or PASID.
Yes, I think that makes sense.
> And a new set of IOMMU-API:
>
> - iommu_{un}bind_pgtable(domain, dev, addr);
> - iommu_{un}bind_pgtable_pasid(domain, dev, addr, pasid);
> - iommu_cache_invalidate(domain, dev, invalid_info);
What caches is this supposed to "invalidate"?
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next prev parent reply other threads:[~2021-07-22 13:35 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-10 6:53 more iommu dead code removal 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 [this message]
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 14:08 ` Liu Yi L
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 ` more iommu dead code removal Jason Gunthorpe
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