From: Jason Gunthorpe <jgg@nvidia.com>
To: "Daniel P. Berrangé" <berrange@redhat.com>
Cc: "Cédric Le Goater" <clg@redhat.com>,
"Duan, Zhenzhong" <zhenzhong.duan@intel.com>,
"qemu-devel@nongnu.org" <qemu-devel@nongnu.org>,
"alex.williamson@redhat.com" <alex.williamson@redhat.com>,
"nicolinc@nvidia.com" <nicolinc@nvidia.com>,
"Martins, Joao" <joao.m.martins@oracle.com>,
"eric.auger@redhat.com" <eric.auger@redhat.com>,
"peterx@redhat.com" <peterx@redhat.com>,
"jasowang@redhat.com" <jasowang@redhat.com>,
"Tian, Kevin" <kevin.tian@intel.com>,
"Liu, Yi L" <yi.l.liu@intel.com>,
"Sun, Yi Y" <yi.y.sun@intel.com>,
"Peng, Chao P" <chao.p.peng@intel.com>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Marc-André Lureau" <marcandre.lureau@redhat.com>,
"Thomas Huth" <thuth@redhat.com>,
"Philippe Mathieu-Daudé" <philmd@linaro.org>
Subject: Re: [PATCH v1 15/22] Add iommufd configure option
Date: Wed, 20 Sep 2023 10:07:28 -0300 [thread overview]
Message-ID: <20230920130728.GX13733@nvidia.com> (raw)
In-Reply-To: <ZQrtMxCnbcXvwLMc@redhat.com>
On Wed, Sep 20, 2023 at 02:01:39PM +0100, Daniel P. Berrangé wrote:
> Assuming we must have the exact same FD used for all vfio-pci devices,
> then using -object iommufd is the least worst way to get that FD
> injected into QEMU from libvirt.
Yes, same FD. It is a shared resource.
Jason
next prev parent reply other threads:[~2023-09-20 13:08 UTC|newest]
Thread overview: 109+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-08-30 10:37 [PATCH v1 00/22] vfio: Adopt iommufd Zhenzhong Duan
2023-08-30 10:37 ` [PATCH v1 01/22] scripts/update-linux-headers: Add iommufd.h Zhenzhong Duan
2023-08-30 10:37 ` [PATCH v1 02/22] Update linux-header to support iommufd cdev and hwpt alloc Zhenzhong Duan
2023-09-14 14:46 ` Eric Auger
2023-09-15 3:02 ` Duan, Zhenzhong
2023-09-20 11:04 ` Eric Auger
2023-09-20 11:15 ` Duan, Zhenzhong
2023-08-30 10:37 ` [PATCH v1 03/22] vfio/common: Move IOMMU agnostic helpers to a separate file Zhenzhong Duan
2023-08-30 10:37 ` [PATCH v1 04/22] vfio/common: Introduce vfio_container_add|del_section_window() Zhenzhong Duan
2023-09-20 11:23 ` Eric Auger
2023-09-20 12:18 ` Duan, Zhenzhong
2023-09-21 8:28 ` Cédric Le Goater
2023-09-21 10:14 ` Duan, Zhenzhong
2023-09-21 10:55 ` Cédric Le Goater
2023-09-27 2:08 ` Duan, Zhenzhong
2023-09-27 6:50 ` Cédric Le Goater
2023-08-30 10:37 ` [PATCH v1 05/22] vfio/common: Extract out vfio_kvm_device_[add/del]_fd Zhenzhong Duan
2023-09-20 11:49 ` Eric Auger
2023-09-21 2:04 ` Duan, Zhenzhong
2023-09-21 8:42 ` Cédric Le Goater
2023-09-21 10:22 ` Duan, Zhenzhong
2023-09-21 10:53 ` Cédric Le Goater
2023-09-20 21:39 ` Alex Williamson
2023-09-21 6:03 ` Duan, Zhenzhong
2023-08-30 10:37 ` [PATCH v1 06/22] vfio/common: Add a vfio device iterator Zhenzhong Duan
2023-09-20 12:25 ` Eric Auger
2023-09-21 2:27 ` Duan, Zhenzhong
2023-09-20 22:16 ` Alex Williamson
2023-09-21 2:16 ` Duan, Zhenzhong
2023-08-30 10:37 ` [PATCH v1 07/22] vfio/common: Refactor vfio_viommu_preset() to be group agnostic Zhenzhong Duan
2023-09-20 13:00 ` Eric Auger
2023-09-21 2:52 ` Duan, Zhenzhong
2023-09-20 22:51 ` Alex Williamson
2023-09-21 6:13 ` Duan, Zhenzhong
2023-08-30 10:37 ` [PATCH v1 08/22] vfio/common: Move legacy VFIO backend code into separate container.c Zhenzhong Duan
2023-09-20 13:12 ` Eric Auger
2023-09-21 3:02 ` Duan, Zhenzhong
2023-08-30 10:37 ` [PATCH v1 09/22] vfio/container: Introduce vfio_[attach/detach]_device Zhenzhong Duan
2023-09-20 13:33 ` Eric Auger
2023-09-21 3:08 ` Duan, Zhenzhong
2023-09-21 9:44 ` Cédric Le Goater
2023-09-21 10:26 ` Duan, Zhenzhong
2023-08-30 10:37 ` [PATCH v1 10/22] vfio/platform: Use vfio_[attach/detach]_device Zhenzhong Duan
2023-09-21 12:17 ` Cédric Le Goater
2023-08-30 10:37 ` [PATCH v1 11/22] vfio/ap: " Zhenzhong Duan
2023-08-30 10:37 ` [PATCH v1 12/22] vfio/ccw: " Zhenzhong Duan
2023-09-21 12:19 ` Cédric Le Goater
2023-09-21 13:00 ` Duan, Zhenzhong
2023-09-21 13:24 ` Cédric Le Goater
2023-08-30 10:37 ` [PATCH v1 13/22] vfio: Add base container Zhenzhong Duan
2023-09-19 17:23 ` Cédric Le Goater
2023-09-20 8:48 ` Duan, Zhenzhong
2023-09-20 12:57 ` Cédric Le Goater
2023-09-20 13:58 ` Eric Auger
2023-09-21 2:51 ` Duan, Zhenzhong
2023-09-20 13:53 ` Eric Auger
2023-09-21 3:12 ` Duan, Zhenzhong
2023-09-20 17:31 ` Eric Auger
2023-09-21 3:35 ` Duan, Zhenzhong
2023-09-21 6:28 ` Eric Auger
2023-09-21 17:20 ` Eric Auger
2023-09-22 2:52 ` Duan, Zhenzhong
2023-08-30 10:37 ` [PATCH v1 14/22] vfio/common: Simplify vfio_viommu_preset() Zhenzhong Duan
2023-09-19 16:01 ` Cédric Le Goater
2023-09-20 2:59 ` Duan, Zhenzhong
2023-08-30 10:37 ` [PATCH v1 15/22] Add iommufd configure option Zhenzhong Duan
2023-09-19 17:07 ` Cédric Le Goater
2023-09-20 3:42 ` Duan, Zhenzhong
2023-09-20 12:19 ` Cédric Le Goater
2023-09-20 12:51 ` Jason Gunthorpe
2023-09-20 13:01 ` Daniel P. Berrangé
2023-09-20 13:07 ` Jason Gunthorpe [this message]
2023-09-20 13:02 ` Cédric Le Goater
2023-09-20 17:37 ` Eric Auger
2023-09-20 17:49 ` Jason Gunthorpe
2023-09-20 18:17 ` Alex Williamson
2023-09-20 18:19 ` Jason Gunthorpe
2023-09-21 3:43 ` Duan, Zhenzhong
2023-09-26 6:05 ` Tian, Kevin
2023-09-21 4:00 ` Duan, Zhenzhong
2023-09-21 2:11 ` Duan, Zhenzhong
2023-09-20 18:01 ` Alex Williamson
2023-09-20 18:12 ` Jason Gunthorpe
2023-09-20 20:29 ` Alex Williamson
2023-09-20 18:15 ` Daniel P. Berrangé
2023-08-30 10:37 ` [PATCH v1 16/22] backends/iommufd: Introduce the iommufd object Zhenzhong Duan
2023-09-22 7:15 ` Cédric Le Goater
2023-09-22 8:39 ` Duan, Zhenzhong
2023-08-30 10:37 ` [PATCH v1 17/22] util/char_dev: Add open_cdev() Zhenzhong Duan
2023-09-20 12:39 ` Daniel P. Berrangé
2023-09-20 12:53 ` Jason Gunthorpe
2023-09-20 12:56 ` Daniel P. Berrangé
2023-09-21 2:37 ` Duan, Zhenzhong
2023-08-30 10:37 ` [PATCH v1 18/22] vfio/iommufd: Implement the iommufd backend Zhenzhong Duan
2023-08-30 10:37 ` [PATCH v1 19/22] vfio/iommufd: Add vfio device iterator callback for iommufd Zhenzhong Duan
2023-08-30 10:37 ` [PATCH v1 20/22] vfio/pci: Adapt vfio pci hot reset support with iommufd BE Zhenzhong Duan
2023-08-30 10:37 ` [PATCH v1 21/22] vfio/pci: Allow the selection of a given iommu backend Zhenzhong Duan
2023-09-06 18:10 ` Jason Gunthorpe
2023-09-06 19:09 ` Alex Williamson
2023-09-07 1:10 ` Jason Gunthorpe
2023-09-07 2:27 ` Duan, Zhenzhong
2023-08-30 10:37 ` [PATCH v1 22/22] vfio/pci: Make vfio cdev pre-openable by passing a file handle Zhenzhong Duan
2023-09-14 9:04 ` [PATCH v1 00/22] vfio: Adopt iommufd Eric Auger
2023-09-14 9:27 ` Duan, Zhenzhong
2023-09-15 12:42 ` Cédric Le Goater
2023-09-15 13:14 ` Duan, Zhenzhong
2023-09-18 11:51 ` Jason Gunthorpe
2023-09-18 12:23 ` Cédric Le Goater
2023-09-18 17:56 ` Jason Gunthorpe
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