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From nvazquez <...@git.apache.org>
Subject [GitHub] cloudstack pull request: CLOUDSTACK-9379: Support nested virtualiz...
Date Thu, 12 May 2016 20:25:27 GMT
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.vazquez@gmail.com>
Date:   2016-05-09T20:06:02Z

    CLOUDSTACK-9379: Support nested virtualization at VM level on VMware Hypervisor

----


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