nova/releasenotes/notes/bug-1845986-70730d9f6c09e68...

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---
fixes:
- |
`Bug 1845986`_ has been fixed by adding iommu driver when the following
metadata options are used with AMD SEV:
- ``hw_scsi_model=virtio-scsi`` and either ``hw_disk_bus=scsi`` or
``hw_cdrom_bus=scsi``
- ``hw_video_model=virtio``
Also a virtio-serial controller is created when ``hw_qemu_guest_agent=yes``
option is used, together with iommu driver for it.
.. _Bug 1845986: https://launchpad.net/bugs/1845986