* KVM inside Oracle VM
@ 2012-03-18 20:26 Sever Apostu
2012-03-19 19:29 ` Sever Apostu
0 siblings, 1 reply; 6+ messages in thread
From: Sever Apostu @ 2012-03-18 20:26 UTC (permalink / raw)
To: kvm
Hi,
I'm planning on building an Oracle VM machine with KVM inside (three KVM machines inside one Oracle VM machine). The trouble is I have yet to find any reference on that :-) Also, although I am familiar with Xen and Oracle VM, I know little about KVM.
What do you think, would this be a reasonable mix of the two virtualization techniques ? Any major drawbacks I should consider ?
Thank you,
Sever
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: KVM inside Oracle VM
2012-03-18 20:26 KVM inside Oracle VM Sever Apostu
@ 2012-03-19 19:29 ` Sever Apostu
2012-03-19 20:00 ` Paolo Bonzini
0 siblings, 1 reply; 6+ messages in thread
From: Sever Apostu @ 2012-03-19 19:29 UTC (permalink / raw)
To: kvm
-----Original Message-----
From: Sever Apostu
Sent: Sunday, March 18, 2012 10:27 PM
To: kvm@vger.kernel.org
Subject: KVM inside Oracle VM
Hi,
I'm planning on building an Oracle VM machine with KVM inside (three KVM machines inside one Oracle VM machine). The trouble is I have yet to find any reference on that :-) Also, although I am familiar with Xen and Oracle VM, I know little about KVM.
What do you think, would this be a reasonable mix of the two virtualization techniques ? Any major drawbacks I should consider ?
Thank you,
Sever
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Any chance anyone has any feedback about KVM installed inside a Xen guest ?
Thank you,
Sever
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: KVM inside Oracle VM
2012-03-19 19:29 ` Sever Apostu
@ 2012-03-19 20:00 ` Paolo Bonzini
2012-03-19 20:06 ` Sever Apostu
0 siblings, 1 reply; 6+ messages in thread
From: Paolo Bonzini @ 2012-03-19 20:00 UTC (permalink / raw)
To: Sever Apostu; +Cc: kvm
Il 19/03/2012 20:29, Sever Apostu ha scritto:
> Any chance anyone has any feedback about KVM installed inside a Xen guest ?
It's really a Xen question more than a KVM question.
Performance and stability will probably suffer.
Paolo
^ permalink raw reply [flat|nested] 6+ messages in thread
* RE: KVM inside Oracle VM
2012-03-19 20:00 ` Paolo Bonzini
@ 2012-03-19 20:06 ` Sever Apostu
2012-03-20 8:34 ` Paolo Bonzini
0 siblings, 1 reply; 6+ messages in thread
From: Sever Apostu @ 2012-03-19 20:06 UTC (permalink / raw)
To: Paolo Bonzini; +Cc: kvm
-----Original Message-----
From: Paolo Bonzini [mailto:pbonzini@redhat.com]
Sent: Monday, March 19, 2012 10:01 PM
To: Sever Apostu
Cc: kvm@vger.kernel.org
Subject: Re: KVM inside Oracle VM
Il 19/03/2012 20:29, Sever Apostu ha scritto:
> Any chance anyone has any feedback about KVM installed inside a Xen guest ?
It's really a Xen question more than a KVM question.
Performance and stability will probably suffer.
Paolo
Thank you for the reply, Paolo!
Most likely both will suffer and I am prepared to live with that, but is it conceptually possible?
I am asking you guys this instead of trying it myself because I am building a project plan that would require someone else providing the infrastructure, so I am wondering whether I should give this one day of testing or simply dismiss it as absurd :-)
I will follow-up on this on the Xen mailing list as well.
Thank you,
Sever
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: KVM inside Oracle VM
2012-03-19 20:06 ` Sever Apostu
@ 2012-03-20 8:34 ` Paolo Bonzini
2012-03-20 11:00 ` Al Patel
0 siblings, 1 reply; 6+ messages in thread
From: Paolo Bonzini @ 2012-03-20 8:34 UTC (permalink / raw)
To: Sever Apostu; +Cc: kvm
Il 19/03/2012 21:06, Sever Apostu ha scritto:
>>> Any chance anyone has any feedback about KVM installed inside a Xen guest ?
>> It's really a Xen question more than a KVM question.
>
> Thank you for the reply, Paolo!
>
> Most likely both will suffer and I am prepared to live with that, but
> is it conceptually possible?
It depends on whether Xen supports it. KVM, just like any other part of
a Xen virtual machine, is just a user of Xen in your scenario. That's
why I said it's a Xen question.
AFAIK Xen added support for nested virtual machines only very recently,
I'm not even sure it's in any released version.
Paolo
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: KVM inside Oracle VM
2012-03-20 8:34 ` Paolo Bonzini
@ 2012-03-20 11:00 ` Al Patel
0 siblings, 0 replies; 6+ messages in thread
From: Al Patel @ 2012-03-20 11:00 UTC (permalink / raw)
To: Paolo Bonzini; +Cc: Sever Apostu, kvm
So you really mean to run Qemu inside Oracle VM? For KVM, the module
needs to run on host kernel.
If you are in the VM kernel already, KVM does not provide you with
hardware acceleration.
On Tue, Mar 20, 2012 at 4:34 AM, Paolo Bonzini <pbonzini@redhat.com> wrote:
> Il 19/03/2012 21:06, Sever Apostu ha scritto:
>>>> Any chance anyone has any feedback about KVM installed inside a Xen guest ?
>>> It's really a Xen question more than a KVM question.
>>
>> Thank you for the reply, Paolo!
>>
>> Most likely both will suffer and I am prepared to live with that, but
>> is it conceptually possible?
>
> It depends on whether Xen supports it. KVM, just like any other part of
> a Xen virtual machine, is just a user of Xen in your scenario. That's
> why I said it's a Xen question.
>
> AFAIK Xen added support for nested virtual machines only very recently,
> I'm not even sure it's in any released version.
>
> Paolo
> --
> To unsubscribe from this list: send the line "unsubscribe kvm" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2012-03-20 11:00 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2012-03-18 20:26 KVM inside Oracle VM Sever Apostu
2012-03-19 19:29 ` Sever Apostu
2012-03-19 20:00 ` Paolo Bonzini
2012-03-19 20:06 ` Sever Apostu
2012-03-20 8:34 ` Paolo Bonzini
2012-03-20 11:00 ` Al Patel
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