On Wed, May 07, 2025 at 01:11:43PM +0530, Vasant Hegde wrote:

  -  MMIO Offset 0018h IOMMU Control Register
     EventLogEn: Event log enable
       * When guest sets this bit, qemu will trap and will send queue_alloc
       * When guest disables this bit, qemu will trap and send vqueue_destroy

     This part is fine.

Ok

     EventIntEn: Event log interrupt enable
       * When guest sets this bit, qemu will trap
       * this needs to be communicated to Host so that we can program VF Control
BAR and enable the interrupt

This sounds like modifying the vqueue? Or maybe on the viommu?

  - There is other bit "Completion wait interrupt enable"
    This doesn't related to any buffer. Instead if we configure this for
completion wait command it will generate interrupt.

This sounds like a modify on the VIOMMU object?

Jason