On Mon, Apr 21, 2025 at 08:03:01AM +0000, Tian, Kevin wrote: > > From: Nicolin Chen <nicolinc@xxxxxxxxxx> > > Sent: Friday, April 11, 2025 2:38 PM > > > > Add a new IOMMUFD_OBJ_VCMDQ with an iommufd_vcmdq structure, > > representing > > a command queue type of physical HW passed to or shared with a user > > space > > VM. > > what is the implication of "or shared with"? Do you intend to support > an usage in which a CMDQ is coordinated by both guest and host (which > sounds insane)? No. It should have been removed. Was for "vQUEUE" previously for a potential wider use case. Will fix this. Thanks Nicolin