Merge "docs: Highlight the current broken state of SEV" into stable/train
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@ -684,6 +684,16 @@ explained above.
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Impermanent limitations
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-----------------------
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The following image metadata options are incompatible with the feature due to
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`bug #1845986 <https://bugs.launchpad.net/nova/+bug/1845986>`__.
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- ``hw_scsi_model=virtio-scsi`` and either ``hw_disk_bus=scsi`` or
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``hw_cdrom_bus=scsi``
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- ``hw_video_model=virtio``
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- ``hw_qemu_guest_agent=yes``
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This limitation will be resolved in the future.
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The following limitations may be removed in the future as the
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hardware, firmware, and various layers of software receive new
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features:
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@ -0,0 +1,21 @@
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---
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issues:
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- |
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The support for guest RAM encryption using AMD SEV (Secure Encrypted
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Virtualization) added in Train is incompatible with a number of image
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metadata options:
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- ``hw_scsi_model=virtio-scsi`` and either ``hw_disk_bus=scsi`` or
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``hw_cdrom_bus=scsi``
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- ``hw_video_model=virtio``
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- ``hw_qemu_guest_agent=yes``
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When used together, the guest kernel can malfunction with repeated warnings
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like::
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NMI watchdog: BUG: soft lockup - CPU#0 stuck for 22s! [system-udevd:272]
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This will be resolved in a future patch release. For more information,
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refer to `bug 1845986`__
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__ https://bugs.launchpad.net/nova/+bug/1845986
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