Difference between revisions of "Xen FAQ General"

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== What is Xen? ==
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== What is the Xen Project Hypervisor? ==
Xen is a virtual machine monitor (VMM) for x86-compatible computers. Xen can securely execute multiple virtual machines, each running its own OS, on a single physical system with close-to-native performance. You can find an overview of Xen at [[Xen_Overview]].
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The Xen Project Hypervisor is a virtual machine monitor (VMM) for x86-compatible computers. The hypervisor can securely execute multiple virtual machines, each running its own OS, on a single physical system with close-to-native performance. You can find an overview at [[Xen Project Software Overview]].
   
== I'd like to read some kind of overview about Xen ==
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== I'd like to read some kind of overview about Xen Project software ==
See the [[XenOverview]] wiki page and [[:Category:Overview]]. Also check the following PDF documents (which are somewhat out-of-date):
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See the [[Xen Project Software Overview]] wiki page and [[:Category:Overview]]. Also check the following PDF documents (which are somewhat out-of-date):
   
 
* http://www.xen.org/files/Marketing/WhatisXen.pdf
 
* http://www.xen.org/files/Marketing/WhatisXen.pdf
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* http://www.xen.org/files/Marketing/HowDoesXenWork.pdf
 
* http://www.xen.org/files/Marketing/HowDoesXenWork.pdf
   
== How is Xen licensed? ==
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== How is the Xen Project software licensed? ==
Xen is Open Source, and is released under terms of the [http://www.gnu.org/licenses/gpl-2.0.html GNU General Public License v2]. Some Xen projects may contain licensing exceptions or a small number of files which are licensed under a GPL compatible license. If so, the source repository contains a '''COPYING''' file providing more information (see [http://lxr.xensource.com/lxr/source/COPYING here] for the COPYING file for the hypervisor).
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Xen Project software is Open Source, and is released under terms of the [http://www.gnu.org/licenses/gpl-2.0.html GNU General Public License v2]. Some Xen Project elements may contain licensing exceptions or a small number of files which are licensed under a GPL compatible license. If so, the source repository contains a '''COPYING''' file providing more information (see [http://lxr.xensource.com/lxr/source/COPYING here] for the COPYING file for the hypervisor).
   
Xen projects do not come with an End User License as the GPL suffices. There is however a trademark policy that restricts the use of the Xen brand to ensure that all Xen branded hypervisors are compatible and will run the same guest VMs. You can find the [http:/www.xen.org/files/XenTMPolicy2008June.pdf trademark policy here].
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Xen Project software does not come with an End User License as the GPL suffices. There is however a trademark policy that restricts the use of the '''Xen Project''' brand to ensure that all Xen Project branded hypervisors are compatible and will run the same guest VMs. You can find the [http://xenproject.org/trademark-policy.html trademark policy here].
   
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There is a separate trademark for '''Xen''' alone. That trademark is owned by Citrix, which controls the use of that mark.
Operating systems or other applications written to use Xen's hypercall interface are not derived works of Xen, hence may be licensed differently.
 
   
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Operating systems or other applications written to use Xen Project's hypercall interface are not derived works of Xen Project, hence may be licensed differently.
== Where can I read about the history of Xen? ==
 
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Please see: http://www.xen.org/community/xenhistory.html
 
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== Where can I read about the history of the Xen Project? ==
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Please see the [http://www.xenproject.org/about/history.html history article on the main XenProject.org website].
   
 
== Where do I find information on Compatibility? ==
 
== Where do I find information on Compatibility? ==
You can find answers to questions such as the following, at [[Xen FAQ Compatibility]]:
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You can find answers to questions such as the following, at [[Xen Project FAQ Compatibility]]:
* Which OSes run on Xen?
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* Which OSes run on the hypervisor?
* Does Xen support Microsoft Windows?
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* Does Xen Project support Microsoft Windows?
* Does Xen run on laptops?
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* Does Xen Project run on laptops?
* Which architectures does Xen support?
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* Which architectures does Xen Project support?
* Does Xen support 32bit and 64bit?
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* Does Xen Project support 32bit and 64bit?
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== Where do I find more General FAQs? ==
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See [[Xen_Common_Problems#General|the common problems document]]
   
 
[[Category:Xen]]
 
[[Category:Xen]]

Latest revision as of 02:37, 26 March 2015


What is the Xen Project Hypervisor?

The Xen Project Hypervisor is a virtual machine monitor (VMM) for x86-compatible computers. The hypervisor can securely execute multiple virtual machines, each running its own OS, on a single physical system with close-to-native performance. You can find an overview at Xen Project Software Overview.

I'd like to read some kind of overview about Xen Project software

See the Xen Project Software Overview wiki page and Category:Overview. Also check the following PDF documents (which are somewhat out-of-date):

How is the Xen Project software licensed?

Xen Project software is Open Source, and is released under terms of the GNU General Public License v2. Some Xen Project elements may contain licensing exceptions or a small number of files which are licensed under a GPL compatible license. If so, the source repository contains a COPYING file providing more information (see here for the COPYING file for the hypervisor).

Xen Project software does not come with an End User License as the GPL suffices. There is however a trademark policy that restricts the use of the Xen Project brand to ensure that all Xen Project branded hypervisors are compatible and will run the same guest VMs. You can find the trademark policy here.

There is a separate trademark for Xen alone. That trademark is owned by Citrix, which controls the use of that mark.

Operating systems or other applications written to use Xen Project's hypercall interface are not derived works of Xen Project, hence may be licensed differently.

Where can I read about the history of the Xen Project?

Please see the history article on the main XenProject.org website.

Where do I find information on Compatibility?

You can find answers to questions such as the following, at Xen Project FAQ Compatibility:

  • Which OSes run on the hypervisor?
  • Does Xen Project support Microsoft Windows?
  • Does Xen Project run on laptops?
  • Which architectures does Xen Project support?
  • Does Xen Project support 32bit and 64bit?


Where do I find more General FAQs?

See the common problems document