linux-kernel - Re: Paravirtualization on VMware's Platform [VMI].

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Date:	Tue, 22 Sep 2009 16:52:32 +0930
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Avi Kivity <avi@...hat.com>
Cc:	Arjan van de Ven <arjan@...radead.org>,
	Ingo Molnar <mingo@...e.hu>,
	Alok Kataria <akataria@...are.com>,
	Thomas Gleixner <tglx@...utronix.de>,
	"H. Peter Anvin" <hpa@...or.com>,
	"the arch/x86 maintainers" <x86@...nel.org>,
	LKML <linux-kernel@...r.kernel.org>,
	Jeremy Fitzhardinge <jeremy@...p.org>,
	Chris Wright <chrisw@...s-sol.org>,
	"virtualization@...ts.osdl.org" <virtualization@...ts.osdl.org>,
	Greg KH <greg@...ah.com>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	Andrew Morton <akpm@...ux-foundation.org>
Subject: Re: Paravirtualization on VMware's Platform [VMI].

On Sun, 20 Sep 2009 06:30:21 pm Avi Kivity wrote:
> On 09/20/2009 10:52 AM, Arjan van de Ven wrote:
> > On Sun, 20 Sep 2009 09:42:47 +0200
> > Ingo Molnar<mingo@...e.hu>  wrote:
> >
> >    
> >> If we were able to rip out all (or most) of paravirt from arch/x86 it
> >> would be tempting for other technical reasons - but the patch above
> >> is well localized.
> >>      
> > interesting question is if this would allow us to remove a few of the
> > paravirt hooks....
> >    
> 
> kvm will be removing the pvmmu support soon; and Xen is talking about 
> running paravirtualized guests in a vmx/svm container where they don't 
> need most of the hooks.

When they're all gone, even I don't think lguest is sufficient excuse
to keep CONFIG_PARAVIRT.  Oh well.  But that will probably be a while.

Cheers,
Rusty.
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