FW: HXEN on linux

FW: HXEN on linux

[Deepak Kr. Sharma - ERS, HCL Tech]

Hello,

I am interested in porting HXen to linux. I understand that the work involved is non-trivial and hence I seek guidance.

I tried to run HXen binaries available on windows7 but the system crashed and showed me the infamous blue screen.

It would be great if I can get some insight into the work required to be done for porting HXen to linux and for achieving stability.

Regards,
Deepak

-----Original Message-----
From: todd.deshane.xen@gmail.com [mailto:todd.deshane.xen@gmail.com] On Behalf Of Todd Deshane
Sent: 04 August 2011 10:28
To: Deepak Kr. Sharma - ERS, HCL Tech
Cc: Lars Kurth
Subject: Re: HXEN on linux

Deepak,

I agree with Lars that discussion of the required work should go
through xen-devel mailing list. It is likely nontrivial to port it to
Linux, but the Xen devel list would have the best insights.

Thanks,
Todd

On Wed, Aug 3, 2011 at 10:41 AM, Lars Kurth <lars.kurth@xen.org> wrote:
> Deepak,
>
> I have been extremely busy as I am hosting XenSummit. You don't need a
> template: we can start this out fiarly informally. From tomorrow I will be
> on vacation until Tue the 9th.
>
> Regarding the crashed HXEN binaries, can I ask you to post something to
> xendevel and I am sure, Todd and others on the list will be able to give
> some advice. If you don't hear back in a week, drop me a line and I will
> follow up.
>
> Lars
>
> On 27/07/2011 05:03, Deepak Kr. Sharma - ERS, HCL Tech wrote:
>
> Hello Lars,
>
>
>
> Thanks for your prompt response.
>
>
>
> We are going through the pdf shared by you and have started working on it.
>
>
>
> It would be great help if you can share some template for proposal that we
> need to send to you. Also, any technical documents will be a help to
> understand and estimate the work required to accomplish the task.
>
>
>
> Regards,
>
> Deepak
>
>
>
> From: Lars Kurth [mailto:lars.kurth.xen@gmail.com] On Behalf Of Lars Kurth
> Sent: 26 July 2011 19:40
> To: Deepak Kr. Sharma - ERS, HCL Tech
> Subject: Re: HXEN on linux
>
>
>
> Deepak,
>
> there has been a project called hosted XEN (see
> http://xen.org/products/projects.html) which died about a year back because
> the two developers stopped working on it, so I archived the project. We have
> a process to restart archived projects. See
> http://www.xen.org/files/Proposals/XenGovernanceProposal1.pdf
>
> Have a look and see whether you can work with this, and we can restart the
> project, give it some PR, etc.
>
> Regards
> Lars
>
> On 26/07/2011 02:43, Deepak Kr. Sharma - ERS, HCL Tech wrote:
>
> Hello,
>
>
>
> I have been using Xen as type-1 hypervisor on linux. But now I am very much
> interested in using Xen as type-2 hypervisor.
>
>
>
> I am interested in porting HXen on linux as HXen is available only for mac
> and windows.
>
>
>
> Any help from your side is highly appreciated.
>
>
>
> Thanks,
>
> Deepak
>
>
>
> ________________________________
>
> ::DISCLAIMER::
> -----------------------------------------------------------------------------------------------------------------------
>
> The contents of this e-mail and any attachment(s) are confidential and
> intended for the named recipient(s) only.
> It shall not attach any liability on the originator or HCL or its
> affiliates. Any views or opinions presented in
> this email are solely those of the author and may not necessarily reflect
> the opinions of HCL or its affiliates.
> Any form of reproduction, dissemination, copying, disclosure, modification,
> distribution and / or publication of
> this message without the prior written consent of the author of this e-mail
> is strictly prohibited. If you have
> received this email in error please delete it and notify the sender
> immediately. Before opening any mail and
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> -----------------------------------------------------------------------------------------------------------------------
>
>
>



-- 
Todd Deshane
http://www.linkedin.com/in/deshantm
http://www.xen.org/products/cloudxen.html
http://runningxen.com/

Re: FW: HXEN on linux

[Konrad Rzeszutek Wilk]

On Fri, Aug 05, 2011 at 11:40:23AM +0530, Deepak  Kr. Sharma - ERS, HCL Tech wrote:
> Hello,
> 
> I am interested in porting HXen to linux. I understand that the work involved is non-trivial and hence I seek guidance.
> 
> I tried to run HXen binaries available on windows7 but the system crashed and showed me the infamous blue screen.
> 
> It would be great if I can get some insight into the work required to be done for porting HXen to linux and for achieving stability.

I think the first part is to see if you can compile it. And then working
through the crashes.

Re: FW: HXEN on linux

[Lars Kurth]

On 09/08/2011 20:51, Konrad Rzeszutek Wilk wrote:
> I think the first part is to see if you can compile it. And then 
> working through the crashes. 
I saw that the sources are in a tarball on 
http://xen.org/products/downloads.html. Does anybody know whether there 
is a repo with HXen sources as well?
Lars

Re: FW: HXEN on linux

[Konrad Rzeszutek Wilk]

On Wed, Aug 10, 2011 at 12:27:53PM +0100, Lars Kurth wrote:
> On 09/08/2011 20:51, Konrad Rzeszutek Wilk wrote:
> >I think the first part is to see if you can compile it. And then
> >working through the crashes.
> I saw that the sources are in a tarball on
> http://xen.org/products/downloads.html. Does anybody know whether
> there is a repo with HXen sources as well?

Well, sadly the tarball tries to use:
http://www.xen.org/products/HostedXen

which does not exist anymore. Any idea where those files might
gone?

RE: FW: HXEN on linux

[Deepak Kr. Sharma - ERS, HCL Tech]

Hi,

We are able to get HXen running on windows. The crash was because of the tap adapter being blocked by our security policy :)

Can we proceed towards porting HXen on linux now?

Your guidance is highly appreciated.

Regards,
Deepak

-----Original Message-----
From: Konrad Rzeszutek Wilk [mailto:konrad.wilk@oracle.com]
Sent: 10 August 2011 01:22
To: Deepak Kr. Sharma - ERS, HCL Tech
Cc: xen-devel@lists.xensource.com; todd.deshane.xen@gmail.com; Lars Kurth
Subject: Re: [Xen-devel] FW: HXEN on linux

On Fri, Aug 05, 2011 at 11:40:23AM +0530, Deepak  Kr. Sharma - ERS, HCL Tech wrote:
> Hello,
>
> I am interested in porting HXen to linux. I understand that the work involved is non-trivial and hence I seek guidance.
>
> I tried to run HXen binaries available on windows7 but the system crashed and showed me the infamous blue screen.
>
> It would be great if I can get some insight into the work required to be done for porting HXen to linux and for achieving stability.

I think the first part is to see if you can compile it. And then working
through the crashes.

::DISCLAIMER::
-----------------------------------------------------------------------------------------------------------------------

The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only.
It shall not attach any liability on the originator or HCL or its affiliates. Any views or opinions presented in
this email are solely those of the author and may not necessarily reflect the opinions of HCL or its affiliates.
Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of
this message without the prior written consent of the author of this e-mail is strictly prohibited. If you have
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RE: FW: HXEN on linux

[Stefano Stabellini]

On Thu, 25 Aug 2011, Deepak  Kr. Sharma - ERS, HCL Tech wrote:
> Hi,
> 
> We are able to get HXen running on windows. The crash was because of the tap adapter being blocked by our security policy :)
> 
> Can we proceed towards porting HXen on linux now?
> 
> Your guidance is highly appreciated.

Yes, feel free to carry on porting HXen to Linux. We'll help when we
can, but keep in mind that the original authors are not involved in the
project anymore so you won't be able to get much help from them.

RE: FW: HXEN on linux

[Deepak Kr. Sharma - ERS, HCL Tech]

Hello,

I have few concerns regarding this project that we want to carry out:

1. It would be great to get some documents/technical information that will help us to get a better understanding of the work that has already been done and the work that has to be done, e.g. a detailed architecture of HXen will be a great help.

2. Is there any preference of development tools on linux?

3. In the current state, is there a way to configure virtualized hardware? For example, can we configure the network card or sound card that is being virtualized to the guest OS?

4. How is HXen correlated with Xen? I read somewhere that the core functions in HXen have been borrowed from Xen.

These details will help us to carry out the project in a structured manner.

Regards,
Deepak

-----Original Message-----
From: Stefano Stabellini [mailto:stefano.stabellini@eu.citrix.com]
Sent: 25 August 2011 19:54
To: Deepak Kr. Sharma - ERS, HCL Tech
Cc: Konrad Rzeszutek Wilk; todd.deshane.xen@gmail.com; xen-devel@lists.xensource.com; Lars Kurth
Subject: RE: [Xen-devel] FW: HXEN on linux

On Thu, 25 Aug 2011, Deepak  Kr. Sharma - ERS, HCL Tech wrote:
> Hi,
>
> We are able to get HXen running on windows. The crash was because of the tap adapter being blocked by our security policy :)
>
> Can we proceed towards porting HXen on linux now?
>
> Your guidance is highly appreciated.

Yes, feel free to carry on porting HXen to Linux. We'll help when we
can, but keep in mind that the original authors are not involved in the
project anymore so you won't be able to get much help from them.

::DISCLAIMER::
-----------------------------------------------------------------------------------------------------------------------

The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only.
It shall not attach any liability on the originator or HCL or its affiliates. Any views or opinions presented in
this email are solely those of the author and may not necessarily reflect the opinions of HCL or its affiliates.
Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of
this message without the prior written consent of the author of this e-mail is strictly prohibited. If you have
received this email in error please delete it and notify the sender immediately. Before opening any mail and
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-----------------------------------------------------------------------------------------------------------------------

Re: FW: HXEN on linux

[Tim Deegan]

At 15:54 +0530 on 26 Aug (1314374067), Deepak  Kr. Sharma - ERS, HCL Tech wrote:
> Hello,
> 
> I have few concerns regarding this project that we want to carry out:
> 
> 1. It would be great to get some documents/technical information that
> will help us to get a better understanding of the work that has
> already been done and the work that has to be done, e.g. a detailed
> architecture of HXen will be a great help.

No, there is none of these things.  HXen was an isolated project by two
engineers, neither of whom is actively developing Xen any more.  It
hasn't been touched for years.  

Cheers,

Tim.

-- 
Tim Deegan <tim@xen.org>
Principal Software Engineer, Xen Platform Team
Citrix Systems UK Ltd.  (Company #02937203, SL9 0BG)

RE: FW: HXEN on linux

[Stefano Stabellini]

On Fri, 26 Aug 2011, Deepak  Kr. Sharma - ERS, HCL Tech wrote:
> Hello,
> 
> I have few concerns regarding this project that we want to carry out:
> 
> 1. It would be great to get some documents/technical information that will help us to get a better understanding of the work that has already been done and the work that has to be done, e.g. a detailed architecture of HXen will be a great help.

like Tim wrote, there isn't one.


> 2. Is there any preference of development tools on linux?

you mean, apart from make and gcc?


> 3. In the current state, is there a way to configure virtualized hardware? For example, can we configure the network card or sound card that is being virtualized to the guest OS?

I think qemu is still used as hardware emulator in HXEN, so there should
be some degrees of configuration.

RE: FW: HXEN on linux

[Deepak Kr. Sharma - ERS, HCL Tech]

Hello,

I understand that there is no document available for HXen.

Please correct me if I am wrong but I assume that HXen draws some stuff from Xen. Is that correlation known and can it be explained?

We have started identifying the blocks in HXen and will be sending out very soon an assessment and understanding of what we want to do. I would request you all to validate the same and give your precious inputs.

The first challenge is to identify the big picture of HXen and our focus area.

Regards,
Deepak

-----Original Message-----
From: Stefano Stabellini [mailto:stefano.stabellini@eu.citrix.com]
Sent: 26 August 2011 17:37
To: Deepak Kr. Sharma - ERS, HCL Tech
Cc: Stefano Stabellini; Konrad Rzeszutek Wilk; todd.deshane.xen@gmail.com; xen-devel@lists.xensource.com; Lars Kurth
Subject: RE: [Xen-devel] FW: HXEN on linux

On Fri, 26 Aug 2011, Deepak  Kr. Sharma - ERS, HCL Tech wrote:
> Hello,
>
> I have few concerns regarding this project that we want to carry out:
>
> 1. It would be great to get some documents/technical information that will help us to get a better understanding of the work that has already been done and the work that has to be done, e.g. a detailed architecture of HXen will be a great help.

like Tim wrote, there isn't one.


> 2. Is there any preference of development tools on linux?

you mean, apart from make and gcc?


> 3. In the current state, is there a way to configure virtualized hardware? For example, can we configure the network card or sound card that is being virtualized to the guest OS?

I think qemu is still used as hardware emulator in HXEN, so there should
be some degrees of configuration.

::DISCLAIMER::
-----------------------------------------------------------------------------------------------------------------------

The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only.
It shall not attach any liability on the originator or HCL or its affiliates. Any views or opinions presented in
this email are solely those of the author and may not necessarily reflect the opinions of HCL or its affiliates.
Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of
this message without the prior written consent of the author of this e-mail is strictly prohibited. If you have
received this email in error please delete it and notify the sender immediately. Before opening any mail and
attachments please check them for viruses and defect.

-----------------------------------------------------------------------------------------------------------------------

RE: FW: HXEN on linux

[Deepak Kr. Sharma - ERS, HCL Tech]

[-- Attachment #1: Type: text/plain, Size: 3211 bytes --]

Hello All,

I am sending a doc that captures our understanding of HXen.

We need inputs and suggestions from you all to correct any discrepancies and clarify our grey areas.

Based on your inputs, we will define our path ahead.

Regards,
Deepak

-----Original Message-----
From: Deepak Kr. Sharma - ERS, HCL Tech
Sent: 30 August 2011 12:41
To: 'Stefano Stabellini'
Cc: Konrad Rzeszutek Wilk; todd.deshane.xen@gmail.com; xen-devel@lists.xensource.com; Lars Kurth
Subject: RE: [Xen-devel] FW: HXEN on linux

Hello,

I understand that there is no document available for HXen.

Please correct me if I am wrong but I assume that HXen draws some stuff from Xen. Is that correlation known and can it be explained?

We have started identifying the blocks in HXen and will be sending out very soon an assessment and understanding of what we want to do. I would request you all to validate the same and give your precious inputs.

The first challenge is to identify the big picture of HXen and our focus area.

Regards,
Deepak

-----Original Message-----
From: Stefano Stabellini [mailto:stefano.stabellini@eu.citrix.com]
Sent: 26 August 2011 17:37
To: Deepak Kr. Sharma - ERS, HCL Tech
Cc: Stefano Stabellini; Konrad Rzeszutek Wilk; todd.deshane.xen@gmail.com; xen-devel@lists.xensource.com; Lars Kurth
Subject: RE: [Xen-devel] FW: HXEN on linux

On Fri, 26 Aug 2011, Deepak  Kr. Sharma - ERS, HCL Tech wrote:
> Hello,
>
> I have few concerns regarding this project that we want to carry out:
>
> 1. It would be great to get some documents/technical information that will help us to get a better understanding of the work that has already been done and the work that has to be done, e.g. a detailed architecture of HXen will be a great help.

like Tim wrote, there isn't one.


> 2. Is there any preference of development tools on linux?

you mean, apart from make and gcc?


> 3. In the current state, is there a way to configure virtualized hardware? For example, can we configure the network card or sound card that is being virtualized to the guest OS?

I think qemu is still used as hardware emulator in HXEN, so there should
be some degrees of configuration.

::DISCLAIMER::
-----------------------------------------------------------------------------------------------------------------------

The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only.
It shall not attach any liability on the originator or HCL or its affiliates. Any views or opinions presented in
this email are solely those of the author and may not necessarily reflect the opinions of HCL or its affiliates.
Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of
this message without the prior written consent of the author of this e-mail is strictly prohibited. If you have
received this email in error please delete it and notify the sender immediately. Before opening any mail and
attachments please check them for viruses and defect.

-----------------------------------------------------------------------------------------------------------------------

[-- Attachment #2: HXenPortingToLinux.docx --]
[-- Type: application/vnd.openxmlformats-officedocument.wordprocessingml.document, Size: 25181 bytes --]

[-- Attachment #3: Type: text/plain, Size: 138 bytes --]

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xensource.com
http://lists.xensource.com/xen-devel

Re: FW: HXEN on linux

[Konrad Rzeszutek Wilk]

On Thu, Sep 01, 2011 at 06:00:26PM +0530, Deepak  Kr. Sharma - ERS, HCL Tech wrote:
> Hello All,
> 
> I am sending a doc that captures our understanding of HXen.
> 
> We need inputs and suggestions from you all to correct any discrepancies and clarify our grey areas.

Ok, first question - why are you doing it?
> 
> Based on your inputs, we will define our path ahead.
> 
> Regards,
> Deepak
> 
> -----Original Message-----
> From: Deepak Kr. Sharma - ERS, HCL Tech
> Sent: 30 August 2011 12:41
> To: 'Stefano Stabellini'
> Cc: Konrad Rzeszutek Wilk; todd.deshane.xen@gmail.com; xen-devel@lists.xensource.com; Lars Kurth
> Subject: RE: [Xen-devel] FW: HXEN on linux
> 
> Hello,
> 
> I understand that there is no document available for HXen.
> 
> Please correct me if I am wrong but I assume that HXen draws some stuff from Xen. Is that correlation known and can it be explained?
> 
> We have started identifying the blocks in HXen and will be sending out very soon an assessment and understanding of what we want to do. I would request you all to validate the same and give your precious inputs.
> 
> The first challenge is to identify the big picture of HXen and our focus area.
> 
> Regards,
> Deepak
> 
> -----Original Message-----
> From: Stefano Stabellini [mailto:stefano.stabellini@eu.citrix.com]
> Sent: 26 August 2011 17:37
> To: Deepak Kr. Sharma - ERS, HCL Tech
> Cc: Stefano Stabellini; Konrad Rzeszutek Wilk; todd.deshane.xen@gmail.com; xen-devel@lists.xensource.com; Lars Kurth
> Subject: RE: [Xen-devel] FW: HXEN on linux
> 
> On Fri, 26 Aug 2011, Deepak  Kr. Sharma - ERS, HCL Tech wrote:
> > Hello,
> >
> > I have few concerns regarding this project that we want to carry out:
> >
> > 1. It would be great to get some documents/technical information that will help us to get a better understanding of the work that has already been done and the work that has to be done, e.g. a detailed architecture of HXen will be a great help.
> 
> like Tim wrote, there isn't one.
> 
> 
> > 2. Is there any preference of development tools on linux?
> 
> you mean, apart from make and gcc?
> 
> 
> > 3. In the current state, is there a way to configure virtualized hardware? For example, can we configure the network card or sound card that is being virtualized to the guest OS?
> 
> I think qemu is still used as hardware emulator in HXEN, so there should
> be some degrees of configuration.
> 
> ::DISCLAIMER::
> -----------------------------------------------------------------------------------------------------------------------
> 
> The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only.
> It shall not attach any liability on the originator or HCL or its affiliates. Any views or opinions presented in
> this email are solely those of the author and may not necessarily reflect the opinions of HCL or its affiliates.
> Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of
> this message without the prior written consent of the author of this e-mail is strictly prohibited. If you have
> received this email in error please delete it and notify the sender immediately. Before opening any mail and
> attachments please check them for viruses and defect.
> 
> -----------------------------------------------------------------------------------------------------------------------


> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel

RE: FW: HXEN on linux

[Deepak Kr. Sharma - ERS, HCL Tech]

Hello Konrad,

We want to build expertise in virtualization domain and contribute to open source community.

We have used Xen as type-1 hypervisor and the performance is unprecedented. We see good potential in HXen as a type-2 hypervisor and some good solutions can be built around it on linux based platforms.

Regards,
Deepak

-----Original Message-----
From: Konrad Rzeszutek Wilk [mailto:konrad.wilk@oracle.com] 
Sent: 01 September 2011 19:17
To: Deepak Kr. Sharma - ERS, HCL Tech
Cc: Stefano Stabellini; todd.deshane.xen@gmail.com; xen-devel@lists.xensource.com; Lars Kurth
Subject: Re: [Xen-devel] FW: HXEN on linux

On Thu, Sep 01, 2011 at 06:00:26PM +0530, Deepak  Kr. Sharma - ERS, HCL Tech wrote:
> Hello All,
> 
> I am sending a doc that captures our understanding of HXen.
> 
> We need inputs and suggestions from you all to correct any discrepancies and clarify our grey areas.

Ok, first question - why are you doing it?
> 
> Based on your inputs, we will define our path ahead.
> 
> Regards,
> Deepak
> 
> -----Original Message-----
> From: Deepak Kr. Sharma - ERS, HCL Tech
> Sent: 30 August 2011 12:41
> To: 'Stefano Stabellini'
> Cc: Konrad Rzeszutek Wilk; todd.deshane.xen@gmail.com; xen-devel@lists.xensource.com; Lars Kurth
> Subject: RE: [Xen-devel] FW: HXEN on linux
> 
> Hello,
> 
> I understand that there is no document available for HXen.
> 
> Please correct me if I am wrong but I assume that HXen draws some stuff from Xen. Is that correlation known and can it be explained?
> 
> We have started identifying the blocks in HXen and will be sending out very soon an assessment and understanding of what we want to do. I would request you all to validate the same and give your precious inputs.
> 
> The first challenge is to identify the big picture of HXen and our focus area.
> 
> Regards,
> Deepak
> 
> -----Original Message-----
> From: Stefano Stabellini [mailto:stefano.stabellini@eu.citrix.com]
> Sent: 26 August 2011 17:37
> To: Deepak Kr. Sharma - ERS, HCL Tech
> Cc: Stefano Stabellini; Konrad Rzeszutek Wilk; todd.deshane.xen@gmail.com; xen-devel@lists.xensource.com; Lars Kurth
> Subject: RE: [Xen-devel] FW: HXEN on linux
> 
> On Fri, 26 Aug 2011, Deepak  Kr. Sharma - ERS, HCL Tech wrote:
> > Hello,
> >
> > I have few concerns regarding this project that we want to carry out:
> >
> > 1. It would be great to get some documents/technical information that will help us to get a better understanding of the work that has already been done and the work that has to be done, e.g. a detailed architecture of HXen will be a great help.
> 
> like Tim wrote, there isn't one.
> 
> 
> > 2. Is there any preference of development tools on linux?
> 
> you mean, apart from make and gcc?
> 
> 
> > 3. In the current state, is there a way to configure virtualized hardware? For example, can we configure the network card or sound card that is being virtualized to the guest OS?
> 
> I think qemu is still used as hardware emulator in HXEN, so there should
> be some degrees of configuration.
> 
> ::DISCLAIMER::
> -----------------------------------------------------------------------------------------------------------------------
> 
> The contents of this e-mail and any attachment(s) are confidential and intended for the named recipient(s) only.
> It shall not attach any liability on the originator or HCL or its affiliates. Any views or opinions presented in
> this email are solely those of the author and may not necessarily reflect the opinions of HCL or its affiliates.
> Any form of reproduction, dissemination, copying, disclosure, modification, distribution and / or publication of
> this message without the prior written consent of the author of this e-mail is strictly prohibited. If you have
> received this email in error please delete it and notify the sender immediately. Before opening any mail and
> attachments please check them for viruses and defect.
> 
> -----------------------------------------------------------------------------------------------------------------------


> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel

Re: FW: HXEN on linux

[Konrad Rzeszutek Wilk]

On Mon, Sep 05, 2011 at 12:43:19PM +0530, Deepak  Kr. Sharma - ERS, HCL Tech wrote:
> Hello Konrad,
> 
> We want to build expertise in virtualization domain and contribute to open source community.
> 
> We have used Xen as type-1 hypervisor and the performance is unprecedented. We see good potential in HXen as a type-2 hypervisor and some good solutions can be built around it on linux based platforms.

"good solutions" .. such as? I am just trying to wrap my mind
around why you would do this extra work instead of doing it in the Xen hypervisor
and expanding what it can do?

RE: FW: HXEN on linux

[Deepak Kr. Sharma - ERS, HCL Tech]

Hello Konrad,

We are part of COE team and our priorities are driven by team that does technology tracking (mix of sales and delivery). As recommended by them, Xen is type-1 hypervisor and HXen is a type-2 hypervisor. Virtualization in a product is a value-add service and not the core product functionality. No one would want to touch a stable system (which is a must in case of type-1 hypervisor) for a value-add service. Hence, HXen gives flexibility to add features on VM w/o impacting product's core functionality. The biggest benefit with HXen is that it can be ported to any other OS without any changes to the stable system.

Please let me know in case you have any other questions.

I would appreciate your and others' inputs and guidance on the analysis that I had sent last week.

Regards,
Deepak

-----Original Message-----
From: Konrad Rzeszutek Wilk [mailto:konrad.wilk@oracle.com]
Sent: 06 September 2011 21:43
To: Deepak Kr. Sharma - ERS, HCL Tech
Cc: Stefano Stabellini; todd.deshane.xen@gmail.com; xen-devel@lists.xensource.com; Lars Kurth
Subject: Re: [Xen-devel] FW: HXEN on linux

On Mon, Sep 05, 2011 at 12:43:19PM +0530, Deepak  Kr. Sharma - ERS, HCL Tech wrote:
> Hello Konrad,
>
> We want to build expertise in virtualization domain and contribute to open source community.
>
> We have used Xen as type-1 hypervisor and the performance is unprecedented. We see good potential in HXen as a type-2 hypervisor and some good solutions can be built around it on linux based platforms.

"good solutions" .. such as? I am just trying to wrap my mind
around why you would do this extra work instead of doing it in the Xen hypervisor
and expanding what it can do?

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Re: FW: HXEN on linux

[Fajar A. Nugraha]

On Wed, Sep 7, 2011 at 7:19 PM, Deepak  Kr. Sharma - ERS, HCL Tech
<deepak.s@hcl.com> wrote:
> Hello Konrad,
>
> We are part of COE team and our priorities are driven by team that does technology tracking (mix of sales and delivery). As recommended by them, Xen is type-1 hypervisor and HXen is a type-2 hypervisor. Virtualization in a product is a value-add service and not the core product functionality. No one would want to touch a stable system (which is a must in case of type-1 hypervisor) for a value-add service. Hence, HXen gives flexibility to add features on VM w/o impacting product's core functionality. The biggest benefit with HXen is that it can be ported to any other OS without any changes to the stable system.

With that goal, I wonder why you choose hxen (which is not
developed/maintained anymore, and has minimal or zero documentation)
instead of virtualbox (which is available under GPL except for the
extension pack, already supporting many host OS) or KVM (since you're
going to use Linux anyway), both are still actively developed.

Good luck though.

-- 
Fajar