Boris Bobrov
cedc850e4e
Add a new sev_enabled() function to the libvirt utils to detect that
SEV is required and return True if and only if the following are both
true:
a) the supports_amd_sev instance variable in the host is
true, *and*
b) the instance extra specs and/or image properties request
memory encryption to be enabled.
In this case we know that SEV functionality is required, so tweak the
guest config accordingly in various ways:
- Ensure that the machine type is some q35 variant. If the image had
an hw_machine_type property requesting some other type, an
InvalidMachineType exception will be raised.
- Set the "iommu" attribute to "on" for all relevant devices including
disk / network devices, but excluding input/graphics/video/serial
devices. This is achieved via a new set_driver_iommu_for_sev()
method added to nova.virt.libvirt.designer. In order to test this
thoroughly, beef up the fake KVM guest fixture with extra devices
of each type.
- Add the <launchSecurity> element to enable use of SEV. Two related
configuration values are extracted from domain capabilities and set
on the element.
- Enable memory locking. All the memory pages allocated by QEMU must
be pinned for SEV, which is achieved via <memoryBacking> and <locked />
elements.
blueprint: amd-sev-libvirt-support
Change-Id: Ie54fca066f3333d1d5d18a2c0e8f6c7d5042490b
========================
Team and repository tags
========================
.. image:: https://governance.openstack.org/tc/badges/nova.svg
:target: https://governance.openstack.org/tc/reference/tags/index.html
.. Change things from this point on
OpenStack Nova
==============
OpenStack Nova provides a cloud computing fabric controller, supporting a wide
variety of compute technologies, including: libvirt (KVM, Xen, LXC and more),
Hyper-V, VMware, XenServer, OpenStack Ironic and PowerVM.
Use the following resources to learn more.
API
---
To learn how to use Nova's API, consult the documentation available online at:
- `Compute API Guide <https://docs.openstack.org/api-guide/compute/>`__
- `Compute API Reference <https://docs.openstack.org/api-ref/compute/>`__
For more information on OpenStack APIs, SDKs and CLIs in general, refer to:
- `OpenStack for App Developers <https://www.openstack.org/appdev/>`__
- `Development resources for OpenStack clouds
<https://developer.openstack.org/>`__
Operators
---------
To learn how to deploy and configure OpenStack Nova, consult the documentation
available online at:
- `OpenStack Nova <https://docs.openstack.org/nova/>`__
In the unfortunate event that bugs are discovered, they should be reported to
the appropriate bug tracker. If you obtained the software from a 3rd party
operating system vendor, it is often wise to use their own bug tracker for
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available at:
- `Bug Tracker <https://bugs.launchpad.net/nova>`__
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----------
For information on how to contribute to Nova, please see the contents of the
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Any new code must follow the development guidelines detailed in the HACKING.rst
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Further developer focused documentation is available at:
- `Official Nova Documentation <https://docs.openstack.org/nova/>`__
- `Official Client Documentation
<https://docs.openstack.org/python-novaclient/>`__
Other Information
-----------------
During each `Summit`_ and `Project Team Gathering`_, we agree on what the whole
community wants to focus on for the upcoming release. The plans for nova can
be found at:
- `Nova Specs <http://specs.openstack.org/openstack/nova-specs/>`__
.. _Summit: https://www.openstack.org/summit/
.. _Project Team Gathering: https://www.openstack.org/ptg/