>-----Original Message----- >From: Eric Auger <eric.au...@redhat.com> >Subject: Re: [PATCH rfcv1 1/6] backends/iommufd_device: introduce >IOMMUFDDevice > > > >On 1/15/24 11:13, Zhenzhong Duan wrote: >> IOMMUFDDevice represents a device in iommufd and can be used as >> a communication interface between devices (i.e., VFIO, VDPA) and >> vIOMMU. >> >> Currently it includes iommufd handler and device id information >> which could be used by vIOMMU to get hw IOMMU information. >> >> In future nested translation support, vIOMMU is going to have >> more iommufd related operations like allocate hwpt for a device, >> attach/detach hwpt, etc. So IOMMUFDDevice will be further expanded. >> >> IOMMUFDDevice is willingly not a QOM object because we don't want >> it to be visible from the user interface. >> >> Introduce a helper iommufd_device_init to initialize IOMMUFDDevice. >> >> Originally-by: Yi Liu <yi.l....@intel.com> >> Signed-off-by: Yi Sun <yi.y....@linux.intel.com> >> Signed-off-by: Zhenzhong Duan <zhenzhong.d...@intel.com> >> --- >> MAINTAINERS | 4 +-- >> include/sysemu/iommufd_device.h | 31 ++++++++++++++++++++ >> backends/iommufd_device.c | 50 >+++++++++++++++++++++++++++++++++ >Maybe it is still time to move the iommufd files in a sepate dir, under >hw at the same level as vfio. > >Thoughts?
Any reason for the movement? Hw dir contains entries to emulate different Devices. Iommufd is not a real device. It's more a backend. Thanks Zhenzhong
