2022-10-14 Project Stratos Meeting notes


Oct 14, 2022


  • @Alex Bennée

  • @Don Harbin

  • @Arnd Bergmann

  • @Stefano Stabellini

  • @Mathieu Poirier

  • @Mike Holmes

  • @Vincent Guittot

  • @Leonardo Garcia

  • @Trilok Soni

  • @Anmar Oueja

  • Srivasta (QC)



 Discussion topics

  • AJB: intro and discussion

  • MP: Maybe we should aim at the basic implementation first

  • MH: whos using the camera

  • SR: What does it it mean in the context of virtualization

    • do multiple VMs consume the cameras?

    • AJB: it’s hard to think of but maybe for camera we can see use cases where the data is classified by the IP or a seperate VM process parallel to the main system

    • SS: assuming clients using V4L - can you use that?

      • AJB: multiple clients consuming at userspace?

      • SS: no VM consume V4L then streaming to following guests

      • AB: in a virtio interface we would be nessecity have to limit the subset

      • AB: would this be consume via V4L and re-injected

      • SS: showing a kernel device on the FE would be more complex

      • LG: what is the requirement we are trying to solve - you could just stream through the network

      • conversation about the benefits about network streams vs real HW

      • SS: network stream can become even more complex

      • MP: for the BP automotive program hitting network issues

      • SS: the latency stuff?

      • SS: maybe one guest won’t use the V4L interface

      • SS: how is it going to behave on the network - optimised for sending data out vs VM-to-VM

      • AJB: the requirements on networking very at odds between automotive and mobile

  • MP: we should start simple and explore those cases

  • AJB: mentions its a shame there

  • TS: don’t just do a demo - doing it the right way round (spec first)

  • Specs First!!! MVP second












 Action items