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From: "Tian, Kevin" <kevin.tian@intel.com>
To: Jason Gunthorpe <jgg@nvidia.com>,
	"bpf@vger.kernel.org" <bpf@vger.kernel.org>,
	Jonathan Corbet <corbet@lwn.net>,
	David Woodhouse <dwmw2@infradead.org>,
	"iommu@lists.linux.dev" <iommu@lists.linux.dev>,
	"Joerg Roedel" <joro@8bytes.org>,
	"linux-doc@vger.kernel.org" <linux-doc@vger.kernel.org>,
	"linux-kselftest@vger.kernel.org"
	<linux-kselftest@vger.kernel.org>,
	"llvm@lists.linux.dev" <llvm@lists.linux.dev>,
	Nathan Chancellor <nathan@kernel.org>,
	"Nick Desaulniers" <ndesaulniers@google.com>,
	Miguel Ojeda <ojeda@kernel.org>,
	Robin Murphy <robin.murphy@arm.com>,
	Shuah Khan <shuah@kernel.org>,
	"Suravee Suthikulpanit" <suravee.suthikulpanit@amd.com>,
	Tom Rix <trix@redhat.com>, Will Deacon <will@kernel.org>
Cc: Alex Williamson <alex.williamson@redhat.com>,
	Lu Baolu <baolu.lu@linux.intel.com>,
	Chaitanya Kulkarni <chaitanyak@nvidia.com>,
	Cornelia Huck <cohuck@redhat.com>,
	Daniel Jordan <daniel.m.jordan@oracle.com>,
	David Gibson <david@gibson.dropbear.id.au>,
	Eric Auger <eric.auger@redhat.com>,
	Eric Farman <farman@linux.ibm.com>,
	"Jason Wang" <jasowang@redhat.com>,
	Jean-Philippe Brucker <jean-philippe@linaro.org>,
	"Martins, Joao" <joao.m.martins@oracle.com>,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
	Matthew Rosato <mjrosato@linux.ibm.com>,
	"Michael S. Tsirkin" <mst@redhat.com>,
	Nicolin Chen <nicolinc@nvidia.com>,
	"Niklas Schnelle" <schnelle@linux.ibm.com>,
	Shameerali Kolothum Thodi  <shameerali.kolothum.thodi@huawei.com>,
	"Liu, Yi L" <yi.l.liu@intel.com>,
	Keqian Zhu <zhukeqian1@huawei.com>
Subject: RE: [PATCH v4 4/17] iommufd: Document overview of iommufd
Date: Fri, 11 Nov 2022 05:59:02 +0000	[thread overview]
Message-ID: <BL1PR11MB5271D83054967E20CFB937A68C009@BL1PR11MB5271.namprd11.prod.outlook.com> (raw)
In-Reply-To: <Y2qNaNfpBG3dcBV6@nvidia.com>

> From: Jason Gunthorpe <jgg@nvidia.com>
> Sent: Wednesday, November 9, 2022 1:10 AM
> 
> +/**
> + * iommufd_device_unbind - Undo iommufd_device_bind()
> + * @idev: Device returned by iommufd_device_bind()
> + *
> + * Release the device from iommufd control. The DMA ownership will
> return back
> + * to unowned with blocked DMA. This invalidates the iommufd_device

unowned but not blocked DMA. iommu_device_release_dma_owner()
will decide what will be the state then, e.g. attached back to the default
domain in most cases.

> +/**
> + * iommufd_device_detach - Disconnect a device to an iommu_domain
> + * @idev: device to detach
> + *
> + * Undoes iommufd_device_attach(). This disconnects the idev from the

'Undoes' -> "Undo'

  reply	other threads:[~2022-11-11  5:59 UTC|newest]

Thread overview: 78+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-11-08  0:48 [PATCH v4 00/17] IOMMUFD Generic interface Jason Gunthorpe
2022-11-08  0:48 ` [PATCH v4 01/17] iommu: Add IOMMU_CAP_ENFORCE_CACHE_COHERENCY Jason Gunthorpe
2022-11-08  0:48 ` [PATCH v4 02/17] iommu: Add device-centric DMA ownership interfaces Jason Gunthorpe
2022-11-11  5:37   ` Tian, Kevin
2022-11-14 16:44     ` Jason Gunthorpe
2022-11-14 13:33   ` Eric Auger
2022-11-14 16:58     ` Jason Gunthorpe
2022-11-08  0:48 ` [PATCH v4 03/17] interval-tree: Add a utility to iterate over spans in an interval tree Jason Gunthorpe
2022-11-15 14:14   ` Eric Auger
2022-11-15 16:44     ` Jason Gunthorpe
2022-11-08  0:48 ` [PATCH v4 04/17] iommufd: Document overview of iommufd Jason Gunthorpe
2022-11-08  3:45   ` Bagas Sanjaya
2022-11-08 17:10   ` [PATCH v4 4/17] " Jason Gunthorpe
2022-11-11  5:59     ` Tian, Kevin [this message]
2022-11-14 15:14       ` Jason Gunthorpe
2022-11-10  9:30   ` [PATCH v4 04/17] " Bagas Sanjaya
2022-11-10 14:49     ` Jonathan Corbet
2022-11-10 14:54       ` Jason Gunthorpe
2022-11-10 15:10         ` Jonathan Corbet
2022-11-10 15:23           ` Jason Gunthorpe
2022-11-10 15:28             ` Jonathan Corbet
2022-11-10 15:29               ` Jason Gunthorpe
2022-11-10 15:52                 ` Jonathan Corbet
2022-11-10 16:54                   ` Jason Gunthorpe
2022-11-11  1:46       ` Bagas Sanjaya
2022-11-14 20:50   ` Eric Auger
2022-11-15  0:52     ` Jason Gunthorpe
2022-11-08  0:48 ` [PATCH v4 05/17] iommufd: File descriptor, context, kconfig and makefiles Jason Gunthorpe
2022-11-11  6:07   ` Tian, Kevin
2022-11-08  0:48 ` [PATCH v4 06/17] kernel/user: Allow user::locked_vm to be usable for iommufd Jason Gunthorpe
2022-11-08  0:49 ` [PATCH v4 07/17] iommufd: PFN handling for iopt_pages Jason Gunthorpe
2022-11-11  9:56   ` Tian, Kevin
2022-11-14 17:20     ` Jason Gunthorpe
2022-11-11 11:09   ` Tian, Kevin
2022-11-14 17:24     ` Jason Gunthorpe
2022-11-15  2:59       ` Tian, Kevin
2022-11-08  0:49 ` [PATCH v4 08/17] iommufd: Algorithms for PFN storage Jason Gunthorpe
2022-11-14  5:50   ` Tian, Kevin
2022-11-14 18:02     ` Jason Gunthorpe
2022-11-15  3:06       ` Tian, Kevin
2022-11-15 14:49         ` Jason Gunthorpe
2022-11-14 19:19   ` [PATCH v4 8/17] " Jason Gunthorpe
2022-11-08  0:49 ` [PATCH v4 09/17] iommufd: Data structure to provide IOVA to PFN mapping Jason Gunthorpe
2022-11-14  7:28   ` Tian, Kevin
2022-11-14 18:43     ` Jason Gunthorpe
2022-11-15  3:13       ` Tian, Kevin
2022-11-15 15:05         ` Jason Gunthorpe
2022-11-16  0:09           ` Tian, Kevin
2022-11-16  0:32             ` Jason Gunthorpe
2022-11-16  2:30               ` Tian, Kevin
2022-11-08  0:49 ` [PATCH v4 10/17] iommufd: IOCTLs for the io_pagetable Jason Gunthorpe
2022-11-08 13:27   ` Bagas Sanjaya
2022-11-08 17:01     ` Jason Gunthorpe
2022-11-14  7:46   ` Tian, Kevin
2022-11-08  0:49 ` [PATCH v4 11/17] iommufd: Add a HW pagetable object Jason Gunthorpe
2022-11-08  0:49 ` [PATCH v4 12/17] iommufd: Add kAPI toward external drivers for physical devices Jason Gunthorpe
2022-11-08 14:34   ` Yi Liu
2022-11-08 17:57     ` Jason Gunthorpe
2022-11-14  7:59   ` Tian, Kevin
2022-11-08  0:49 ` [PATCH v4 13/17] iommufd: Add kAPI toward external drivers for kernel access Jason Gunthorpe
2022-11-14  8:25   ` Tian, Kevin
2022-11-14 19:05     ` Jason Gunthorpe
2022-11-08  0:49 ` [PATCH v4 14/17] iommufd: vfio container FD ioctl compatibility Jason Gunthorpe
2022-11-08  0:49 ` [PATCH v4 16/17] iommufd: Add some fault injection points Jason Gunthorpe
2022-11-08  7:25   ` Nicolin Chen
2022-11-08 12:37     ` Jason Gunthorpe
2022-11-08  0:49 ` [PATCH v4 17/17] iommufd: Add additional invariant assertions Jason Gunthorpe
     [not found] ` <15-v4-0de2f6c78ed0+9d1-iommufd_jgg@nvidia.com>
2022-11-08  1:01   ` [PATCH v4 15/17] iommufd: Add a selftest Jason Gunthorpe
2022-11-08  5:48   ` Nicolin Chen
2022-11-08 13:27     ` Jason Gunthorpe
2022-11-09 23:51   ` Matthew Rosato
2022-11-11 15:51 ` [PATCH v4 00/17] IOMMUFD Generic interface Shameerali Kolothum Thodi
2022-11-12 12:44   ` Yi Liu
2023-01-10 11:35     ` Shameerali Kolothum Thodi
2023-01-10 13:49       ` Jason Gunthorpe
2023-01-10 15:16         ` Joao Martins
2023-01-10 15:18           ` Jason Gunthorpe
2023-01-10 15:30           ` Shameerali Kolothum Thodi

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