From: Jason Gunthorpe <jgg@nvidia.com>
To: "Tian, Kevin" <kevin.tian@intel.com>
Cc: "Liu, Yi L" <yi.l.liu@intel.com>,
"alex.williamson@redhat.com" <alex.williamson@redhat.com>,
"cohuck@redhat.com" <cohuck@redhat.com>,
"eric.auger@redhat.com" <eric.auger@redhat.com>,
"nicolinc@nvidia.com" <nicolinc@nvidia.com>,
"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
"mjrosato@linux.ibm.com" <mjrosato@linux.ibm.com>,
"chao.p.peng@linux.intel.com" <chao.p.peng@linux.intel.com>,
"yi.y.sun@linux.intel.com" <yi.y.sun@linux.intel.com>,
"peterx@redhat.com" <peterx@redhat.com>,
"jasowang@redhat.com" <jasowang@redhat.com>
Subject: Re: [RFC 08/12] vfio: Add infrastructure for bind_iommufd and attach
Date: Mon, 9 Jan 2023 09:21:13 -0400 [thread overview]
Message-ID: <Y7wUyUbilYc67M8L@nvidia.com> (raw)
In-Reply-To: <BN9PR11MB52768928D8FF45129AF8D7CC8CFE9@BN9PR11MB5276.namprd11.prod.outlook.com>
On Mon, Jan 09, 2023 at 05:46:04AM +0000, Tian, Kevin wrote:
> > From: Liu, Yi L <yi.l.liu@intel.com>
> > Sent: Monday, December 19, 2022 4:47 PM
> >
> > This prepares to add ioctls for device cdev fd. This infrastructure includes:
> > - vfio_iommufd_bind() to accept pt_id, and also return back dev_id to
> > caller.
> > - vfio_iommufd_attach() to support iommufd pgtable attach after
> > bind_iommufd.
>
> Please mention that pt_id==-1 implies detach.
Oh, do we want that or a dedicated ioctl? -1 isn't a u32..
Jason
next prev parent reply other threads:[~2023-01-09 13:21 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-12-19 8:47 [RFC 00/12] Add vfio_device cdev for iommufd support Yi Liu
2022-12-19 8:47 ` [RFC 01/12] vfio: Allocate per device file structure Yi Liu
2022-12-21 3:57 ` Tian, Kevin
2022-12-21 6:46 ` Yi Liu
2022-12-19 8:47 ` [RFC 02/12] vfio: Refine vfio file kAPIs Yi Liu
2022-12-19 8:47 ` [RFC 03/12] vfio: Accept vfio device file in the driver facing kAPI Yi Liu
2022-12-21 4:07 ` Tian, Kevin
2022-12-21 7:02 ` Yi Liu
2023-01-04 18:25 ` Jason Gunthorpe
2023-01-09 4:13 ` Tian, Kevin
2022-12-19 8:47 ` [RFC 04/12] kvm/vfio: Rename kvm_vfio_group to prepare for accepting vfio device fd Yi Liu
2022-12-19 8:47 ` [RFC 05/12] kvm/vfio: Accept vfio device file from userspace Yi Liu
2023-01-06 14:32 ` Jason Gunthorpe
2023-01-06 14:46 ` Yi Liu
2023-01-06 14:55 ` Jason Gunthorpe
2023-01-06 15:04 ` Yi Liu
2023-01-06 16:08 ` Jason Gunthorpe
2023-01-09 4:17 ` Tian, Kevin
2023-01-09 4:26 ` Yi Liu
2022-12-19 8:47 ` [RFC 06/12] vfio: Pass struct vfio_device_file * to vfio_device_open/close() Yi Liu
2022-12-21 4:10 ` Tian, Kevin
2022-12-21 7:04 ` Yi Liu
2022-12-19 8:47 ` [RFC 07/12] vfio: Block device access via device fd until device is opened Yi Liu
2022-12-21 4:18 ` Tian, Kevin
2023-01-04 20:47 ` Jason Gunthorpe
2022-12-19 8:47 ` [RFC 08/12] vfio: Add infrastructure for bind_iommufd and attach Yi Liu
2023-01-09 5:46 ` Tian, Kevin
2023-01-09 13:21 ` Jason Gunthorpe [this message]
2023-01-10 2:53 ` Tian, Kevin
2022-12-19 8:47 ` [RFC 09/12] vfio: Make vfio_device_open() exclusive between group path and device cdev path Yi Liu
2023-01-09 6:03 ` Tian, Kevin
2022-12-19 8:47 ` [RFC 10/12] vfio: Add cdev for vfio_device Yi Liu
2023-01-09 6:54 ` Tian, Kevin
2022-12-19 8:47 ` [RFC 11/12] vfio: Add ioctls for device cdev iommufd Yi Liu
2023-01-09 7:47 ` Tian, Kevin
2023-01-09 14:14 ` Jason Gunthorpe
2023-01-09 15:07 ` Yi Liu
2023-01-09 15:12 ` Jason Gunthorpe
2023-01-09 15:20 ` Yi Liu
2023-01-09 14:55 ` Yi Liu
2023-01-10 2:57 ` Tian, Kevin
2022-12-19 8:47 ` [RFC 12/12] vfio: Compile group optionally Yi Liu
2022-12-19 8:51 ` [RFC 00/12] Add vfio_device cdev for iommufd support Yi Liu
2023-01-04 15:23 ` Yi Liu
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