GitHub user nvazquez opened a pull request:
https://github.com/apache/cloudstack/pull/1542
CLOUDSTACK-9379: Support nested virtualization at VM level on VMware
Hypervisor
## Introduction
[JIRA TICKET](https://issues.apache.org/jira/browse/CLOUDSTACK-9379)
It is desired to support nested virtualization at VM level for VMware
hypervisor. Current behaviour supports enabling/desabling global nested
virtualization by modifying global config `'vmware.nested.virtualization'`. It
is wished to improve this feature, having control at VM level instead of a
global control only.
## Proposal
A new global configuration is added, to enable/disable VM nested
virtualization control: `'vmware.nested.virtualization.perVM'`. Default
value=false
## Behaviour
After a vm deployment or start command, vm params include
`'nestedVirtualizationFlag'` key and its value is:
* true -> nested virtualization enabled
* false -> nested virtualization disabled
**We will determinate nested virtualization enabled/disabled by examining
this 3 values:**
* **(1)** global configuration `'vmware.nested.virtualization'` value
* **(2)** global configuration `'vmware.nested.virtualization.perVM'` value
* **(3)** `'nestedVirtualizationFlag'` value in `user_vm_details` if
present, `null` if not.
Using this 3 values, there are different use cases:
* **(1)** = TRUE, **(2)** = TRUE, **(3)** is null -> _ENABLED_
* **(1)** = TRUE, **(2)** = TRUE, **(3)** = TRUE -> _ENABLED_
* **(1)** = TRUE, **(2)** = TRUE, **(3)** = FALSE -> _DISABLED_
* **(1)** = TRUE, **(2)** = FALSE, **(3)** indifferent -> _ENABLED_
* **(1)** = FALSE, **(2)** = TRUE, **(3)** is null -> _DISABLED_
* **(1)** = FALSE, **(2)** = TRUE, **(3)** = TRUE -> _ENABLED_
* **(1)** = FALSE, **(2)** = TRUE, **(3)** = FALSE -> _DISABLED_
* **(1)** = FALSE, **(2)** = FALSE, **(3)** indifferent -> _DISABLED_
You can merge this pull request into a Git repository by running:
$ git pull https://github.com/nvazquez/cloudstack nestedv
Alternatively you can review and apply these changes as the patch at:
https://github.com/apache/cloudstack/pull/1542.patch
To close this pull request, make a commit to your master/trunk branch
with (at least) the following in the commit message:
This closes #1542
----
commit 66a4a842bff1a8e8d1bb15fea12fb3b005b1c1d7
Author: nvazquez <nicolas.m.vazq...@gmail.com>
Date: 2016-05-09T20:06:02Z
CLOUDSTACK-9379: Support nested virtualization at VM level on VMware
Hypervisor
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