openstack/nova
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OpenStack Compute (Nova)
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Kashyap Chamarthy cc27a2007f libvirt: Lift the restriction of choices for cpu_model_extra_flags 
Commit 6b601b7 (libvirt: Allow to specify granular CPU feature flags)
added support for allowing to specify individual CPU feature flags, but
restricted the options only to "PCID" (refer to its commit message for
why).

In this change we lift the restriction of choices, and allow to specify
multiple CPU feature flags for all three CPU modes for the libvirt
driver: 'custom', 'host-model', and 'host-passthrough'.

For example:

     [libvirt]
     cpu_mode = custom
     cpu_model = IvyBridge
     cpu_model_extra_flags = pcid, vmx, pdpe1gb

This will allow additional use cases such as:

  - Ability to use 1GB huge pages with models that don't provide it
    (such as Intel "Haswell" variants) as one use case for extra flags:

        cpu_mode = custom
        cpu_model = Haswell-noTSX-IBRS
        cpu_model_extra_flags = pdpe1gb

  - Nested Virtualization -- an operator can specify the Intel 'vmx' (or
    AMD 'svm') flags for the level-1 Nova guest CPU models.  (Assuming
    the 'nested' flag is enabled on the level-0 / bare-metal kernel.)

(A future Nova patch will also allow ability to remove CPU flags.)

Change-Id: I9a862619f379057bb48cb85a84dfc50d763030a6
Signed-off-by: Kashyap Chamarthy <kchamart@redhat.com>
BluePrint: libvirt-cpu-model-extra-flags
2018-05-01 11:47:18 -04:00
api-guide/source Add config drive link to api-guide 2018-04-16 11:36:27 +08:00
api-ref/source Merge "Add host/hostId to instance action events API" 2018-04-26 20:42:07 +00:00
contrib trivial: Remove "vif" script 2017-08-07 16:00:10 +01:00
devstack Cleanup tempest-dsvm-cells-rc blacklist 2018-03-15 09:31:24 -04:00
doc Fix tox -e docs 2018-04-26 17:30:08 -04:00
etc/nova Convert users of tune2fs to privsep. 2018-02-28 07:14:51 +11:00
gate Make nova-manage db purge take --all-cells 2018-03-08 09:26:49 -08:00
nova libvirt: Lift the restriction of choices for cpu_model_extra_flags 2018-05-01 11:47:18 -04:00
placement-api-ref/source Address issues raised in adding member_of to GET /a-c 2018-04-24 17:03:56 +00:00
playbooks/legacy Use Queens UCA for nova-multiattach job 2018-04-12 16:07:52 -04:00
releasenotes libvirt: Lift the restriction of choices for cpu_model_extra_flags 2018-05-01 11:47:18 -04:00
tools Finish stestr migration 2017-11-24 16:51:12 -05:00
.coveragerc Remove nova/openstack/* from .coveragerc 2016-10-12 16:20:49 -04:00
.gitignore Fix test runner config issues with os-testr 1.0.0 2017-09-13 17:11:57 -04:00
.gitreview Add .gitreview config file for gerrit. 2011-10-24 15:07:19 -04:00
.mailmap Add mailmap entry 2014-05-07 12:14:26 -07:00
.stestr.conf Finish stestr migration 2017-11-24 16:51:12 -05:00
.zuul.yaml Use Queens UCA for nova-multiattach job 2018-04-12 16:07:52 -04:00
babel.cfg Get rid of distutils.extra. 2012-02-08 19:30:39 -08:00
bindep.txt Merge "Bindep does not catch missing libpcre3-dev on Ubuntu" 2018-02-14 07:31:09 +00:00
CONTRIBUTING.rst Update links in documents 2018-01-12 17:05:11 +08:00
HACKING.rst Removed unnecessary parantheses in yield statements 2018-03-07 16:44:36 +09:00
LICENSE initial commit 2010-05-27 23:05:26 -07:00
MAINTAINERS Fix broken URLs 2017-09-07 15:42:31 +02:00
README.rst Docs: modernise links 2018-03-24 20:27:11 +08:00
requirements.txt uncap eventlet in nova 2018-04-11 21:35:49 +08:00
setup.cfg Follow the new PTI for document build 2018-03-16 14:39:36 +00:00
setup.py Updated from global requirements 2017-03-02 11:50:48 +00:00
test-requirements.txt Updated from global requirements 2018-03-23 07:40:46 +00:00
tests-py3.txt Skip unit tests for SSL + py3 2017-03-02 14:30:16 +08:00
tox.ini Default to py3 for the pep8 tox env because it's stricter 2018-04-04 15:24:00 +00:00

README.rst

Team and repository tags

image

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:

For more information on OpenStack APIs, SDKs and CLIs in general, refer to:

Operators

To learn how to deploy and configure OpenStack Nova, consult the documentation available online at:

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 reporting problems. In all other cases use the master OpenStack bug tracker, available at:

Developers

For information on how to contribute to Nova, please see the contents of the CONTRIBUTING.rst.

Any new code must follow the development guidelines detailed in the HACKING.rst file, and pass all unit tests.

Further developer focused documentation is available at:

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: