libqemu => libkvm?

libqemu => libkvm?

[gerryw-dHy0zPTSVEVBDgjK7y7TUQ]

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Hi Folks,

I've been spending some time playing around with KVM and I am starting to 
become interested in making a contribution to the project. I'm considering 
the idea of writing a library interface to libqemu in a KVM context. I am 
aware of libvirt, but that isn't what I'm thinking here. This lib would be 
very specific to KVM. I have been poking around in the source a bit and it 
seems like it would be possible. Before I go further, I thought I would 
ask a few questions. I would also appreciate any and all opinions on the 
subject. 

1. Is anyone already thinking about , or actually doing this?
2. Does this sound useful?
3. Is the libqemu API stable enough at this point to write code against?
4. Can anyone see any immediate road blocks to doing this?

This would probably also include a cross platform GUI interface at some 
point. This interface would be specific to KVM and the subtle nuances that 
make it unique. I've been looking for a good excuse to use FLTK on a 
project anyway ;-)

Thanks for your consideration,
-G







 

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Re: libqemu => libkvm?

[Dor Laor]

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Hi Folks, 

I've been spending some time playing around with KVM and I am starting
to become interested in making a contribution to the project. I'm
considering the idea of writing a library interface to libqemu in a KVM
context. I am aware of libvirt, but that isn't what I'm thinking here.
This lib would be very specific to KVM. I have been poking around in the
source a bit and it seems like it would be possible. Before I go
further, I thought I would ask a few questions. I would also appreciate
any and all opinions on the subject. 

1. Is anyone already thinking about , or actually doing this? 



That's a real interesting idea. Actually this is the first time I
discovered people use libqemu

apart from qemu itslef. We didn't thought about this yet.

2. Does this sound useful? 

It does create some interesting VM-process merges although a regular VM
has monitor interface

or dbus interface so many actions can be done by tcp to qemu.

Actually there is work in progress to add dbus interface to qemu. I
might not fit every thing but can help

for some cases.


3. Is the libqemu API stable enough at this point to write code against?


I believe KVM triggers some changes to it.
4. Can anyone see any immediate road blocks to doing this? 
Except for exposing the same api, no.


This would probably also include a cross platform GUI interface at some
point. This interface would be specific to KVM and the subtle nuances
that make it unique. I've been looking for a good excuse to use FLTK on
a project anyway ;-) 
Why do you need a gui? What's your application/plan for it?
Thanks for your consideration, 
-G 

	
	
	
	

Regards, Dor


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Re: libqemu => libkvm?

[gerryw-dHy0zPTSVEVBDgjK7y7TUQ]

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Hi Dor,

I appreciate your comments. The GUI interface would be an attempt to give 
KVM the same kind of features that some of the commercial virtualization 
products provide. A single GUI interface to manage multiple virtual host 
systems. The goal would be to create a tightly integrated solution that 
would allow management of even the most subtle KVM features, options, and 
functions. The exposure of the host / guest communication facilities would 
be a good example. It might also be interesting to take a look at 
providing a guest utility library as well. I'm very excited about the KVM 
project and the tremendous potential it opens up in virtualization. It's 
really got the gears in my head turning.

Thanks,
-G






 



"Dor Laor" <dor.laor-atKUWr5tajBWk0Htik3J/w@public.gmane.org> 
09/04/2007 02:38 AM

To
<gerryw-dHy0zPTSVEVBDgjK7y7TUQ@public.gmane.org>, <kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>
cc

Subject
RE: [kvm-devel] libqemu => libkvm?






Hi Folks, 

I've been spending some time playing around with KVM and I am starting to 
become interested in making a contribution to the project. I'm considering 
the idea of writing a library interface to libqemu in a KVM context. I am 
aware of libvirt, but that isn't what I'm thinking here. This lib would be 
very specific to KVM. I have been poking around in the source a bit and it 
seems like it would be possible. Before I go further, I thought I would 
ask a few questions. I would also appreciate any and all opinions on the 
subject. 

1. Is anyone already thinking about , or actually doing this? 

That's a real interesting idea. Actually this is the first time I 
discovered people use libqemu
apart from qemu itslef. We didn't thought about this yet.
2. Does this sound useful? 
It does create some interesting VM-process merges although a regular VM 
has monitor interface
or dbus interface so many actions can be done by tcp to qemu.
Actually there is work in progress to add dbus interface to qemu. I might 
not fit every thing but can help
for some cases.

3. Is the libqemu API stable enough at this point to write code against? 
I believe KVM triggers some changes to it.
4. Can anyone see any immediate road blocks to doing this? 
Except for exposing the same api, no.

This would probably also include a cross platform GUI interface at some 
point. This interface would be specific to KVM and the subtle nuances that 
make it unique. I've been looking for a good excuse to use FLTK on a 
project anyway ;-) 
Why do you need a gui? What's your application/plan for it?
Thanks for your consideration, 
-G 





Regards, Dor

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Re: libqemu => libkvm?

[Dor Laor]

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Hi Dor, 

I appreciate your comments. The GUI interface would be an attempt to
give KVM the same kind of features that some of the commercial
virtualization products provide. A single GUI interface to manage
multiple virtual host systems. The goal would be to create a tightly
integrated solution that would allow management of even the most subtle
KVM features, options, and functions. The exposure of the host / guest
communication facilities would be a good example. It might also be
interesting to take a look at providing a guest utility library as well.
I'm very excited about the KVM project and the tremendous potential it
opens up in virtualization. It's really got the gears in my head
turning. 

Thanks, 
-G

 

While it's fun to have a new GUI dedicated to KVM, IMHO the virt-manager
can

be enhanced for everyones need. The community will benefit of one good
GUI 

instead of several parallel efforts.


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Re: libqemu => libkvm?

[Daniel Veillard]

On Tue, Sep 04, 2007 at 05:15:58AM -0700, Dor Laor wrote:
> 
>    While  it's  fun  to  have  a  new  GUI  dedicated  to  KVM,  IMHO the
>    virt-manager can
> 
>    be enhanced for everyones need. The community will benefit of one good
>    GUI
> 
>    instead of several parallel efforts.

  Thanks !
If there is something missing in libvirt or virt-manager, we are definitely
open to suggestions, usually take patches, and eager to get more people
helping to build and run those projects in a fully open way,

  yours,

Daniel

-- 
Red Hat Virtualization group http://redhat.com/virtualization/
Daniel Veillard      | virtualization library  http://libvirt.org/
veillard-H+wXaHxf7aLQT0dZR+AlfA@public.gmane.org  | libxml GNOME XML XSLT toolkit  http://xmlsoft.org/
http://veillard.com/ | Rpmfind RPM search engine  http://rpmfind.net/

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Re: libqemu => libkvm?

[Anthony Liguori]

On Mon, 2007-09-03 at 18:49 -0500, gerryw-dHy0zPTSVEVBDgjK7y7TUQ@public.gmane.org wrote:
> 
> Hi Folks, 
> 
> I've been spending some time playing around with KVM and I am starting
> to become interested in making a contribution to the project. I'm
> considering the idea of writing a library interface to libqemu in a
> KVM context.

What do you mean by libqemu?  The libqemu in the QEMU project is a
library for the CPU translation.  It actually doesn't really serve a
purpose in the context of KVM.  It is not the sort of thing you'd write
a GUI tool around.

Regards,

Anthony Liguori

>  I am aware of libvirt, but that isn't what I'm thinking here. This
> lib would be very specific to KVM. I have been poking around in the
> source a bit and it seems like it would be possible. Before I go
> further, I thought I would ask a few questions. I would also
> appreciate any and all opinions on the subject. 
> 
> 1. Is anyone already thinking about , or actually doing this? 
> 2. Does this sound useful? 
> 3. Is the libqemu API stable enough at this point to write code
> against? 
> 4. Can anyone see any immediate road blocks to doing this? 
> 
> This would probably also include a cross platform GUI interface at
> some point. This interface would be specific to KVM and the subtle
> nuances that make it unique. I've been looking for a good excuse to
> use FLTK on a project anyway ;-) 
> 
> Thanks for your consideration, 
> -G 
> 
> 
> 
> 
> 
> 
> 
> 
>  
> 
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Re: libqemu => libkvm?

[gerryw-dHy0zPTSVEVBDgjK7y7TUQ]

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Hi Anthony,

What I'm suggesting is a library for KVM that sits between the command 
line interface and the functions for creating, destroying, starting, 
stopping, migrating, etc. When I looked at the code it appeared that KVM 
was actually a modified QEMU. I didn't realize at the time that there was 
actually a libqemu. The subject line of my post was referring to whether 
the API would be considered libqemu instead of libkvm. Sorry for the 
confusion.

Thanks,
-G





Anthony Liguori <anthony-rdkfGonbjUSkNkDKm+mE6A@public.gmane.org> 
09/04/2007 08:55 AM

To
gerryw-dHy0zPTSVEVBDgjK7y7TUQ@public.gmane.org
cc
kvm-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject
Re: [kvm-devel] libqemu => libkvm?







On Mon, 2007-09-03 at 18:49 -0500, gerryw-dHy0zPTSVEVBDgjK7y7TUQ@public.gmane.org wrote:
> 
> Hi Folks, 
> 
> I've been spending some time playing around with KVM and I am starting
> to become interested in making a contribution to the project. I'm
> considering the idea of writing a library interface to libqemu in a
> KVM context.

What do you mean by libqemu?  The libqemu in the QEMU project is a
library for the CPU translation.  It actually doesn't really serve a
purpose in the context of KVM.  It is not the sort of thing you'd write
a GUI tool around.

Regards,

Anthony Liguori

>  I am aware of libvirt, but that isn't what I'm thinking here. This
> lib would be very specific to KVM. I have been poking around in the
> source a bit and it seems like it would be possible. Before I go
> further, I thought I would ask a few questions. I would also
> appreciate any and all opinions on the subject. 
> 
> 1. Is anyone already thinking about , or actually doing this? 
> 2. Does this sound useful? 
> 3. Is the libqemu API stable enough at this point to write code
> against? 
> 4. Can anyone see any immediate road blocks to doing this? 
> 
> This would probably also include a cross platform GUI interface at
> some point. This interface would be specific to KVM and the subtle
> nuances that make it unique. I've been looking for a good excuse to
> use FLTK on a project anyway ;-) 
> 
> Thanks for your consideration, 
> -G 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
> 
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Re: libqemu => libkvm?

[gerryw-dHy0zPTSVEVBDgjK7y7TUQ]

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Hi Guys,

Sorry. I wasn't trying to start anything or ruffle any feathers. I should 
have kept the GUI comment to myself. It is the API discussion I am 
interested in here. Please disregard the GUI reference.

Thanks,
-G






 

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