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| author | Eric Auger <eric.auger@redhat.com> | 2023-11-21 16:44:00 +0800 |
|---|---|---|
| committer | Cédric Le Goater <clg@redhat.com> | 2023-12-19 19:03:38 +0100 |
| commit | 6e6d8ac62b5b38dc9d4b69ffdf073f0a0b43b7be (patch) | |
| tree | ed0a5d7b3b5ba608a2d7b2dd84b03f37c204d219 /util/chardev_open.c | |
| parent | dbb9d0c9691d145338686d3e0920da047f2ab3da (diff) | |
| download | focaccia-qemu-6e6d8ac62b5b38dc9d4b69ffdf073f0a0b43b7be.tar.gz focaccia-qemu-6e6d8ac62b5b38dc9d4b69ffdf073f0a0b43b7be.zip | |
backends/iommufd: Introduce the iommufd object
Introduce an iommufd object which allows the interaction with the host /dev/iommu device. The /dev/iommu can have been already pre-opened outside of qemu, in which case the fd can be passed directly along with the iommufd object: This allows the iommufd object to be shared accross several subsystems (VFIO, VDPA, ...). For example, libvirt would open the /dev/iommu once. If no fd is passed along with the iommufd object, the /dev/iommu is opened by the qemu code. Suggested-by: Alex Williamson <alex.williamson@redhat.com> Signed-off-by: Eric Auger <eric.auger@redhat.com> Signed-off-by: Yi Liu <yi.l.liu@intel.com> Signed-off-by: Zhenzhong Duan <zhenzhong.duan@intel.com> Reviewed-by: Cédric Le Goater <clg@redhat.com> Tested-by: Eric Auger <eric.auger@redhat.com> Tested-by: Nicolin Chen <nicolinc@nvidia.com> Signed-off-by: Cédric Le Goater <clg@redhat.com>
Diffstat (limited to 'util/chardev_open.c')
0 files changed, 0 insertions, 0 deletions