On Thu, 27 Feb 2020 11:29:17 +0100 Gerd Hoffmann <kra...@redhat.com> wrote:
> > I'm still unsure how FDs coming from a host application can be > > converted to resource objects (and then UUIDs so they can be passed > > to the ipc_connection) if they've not been previously created/passed > > by the guest though. > > Depends on the kind of fd I think. For unix sockets or virtio-fs files > it should be easy. dma-bufs or sysv shmem would be more tricky because > we have to map them into the guest address space (if we want support > that). Not impossible though, we could use the new shared memory > support for that. I was more worried about the complexity an import_resource() API would put on the host proxy: it will have to know which subsystem each of the resources/FDs it tries to pass to the virtio-ipc socket should be attached to, and none of those resources have actually been created by the proxy itself. That implies having a way to get that information from a FD (is it a dmabuf FD, a unix socket fd, ... and depending on the kind of FD, which device/subsystem is in charge of this FD, for instance, for dmabufs, you might need to know who allocated the buffer). --------------------------------------------------------------------- To unsubscribe, e-mail: virtio-dev-unsubscr...@lists.oasis-open.org For additional commands, e-mail: virtio-dev-h...@lists.oasis-open.org
