linux-kernel - Re: [PATCH] use unfair spinlock when running on hypervisor.

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Message-ID: <20100602052632.GA25864@linux.vnet.ibm.com>
Date:	Wed, 2 Jun 2010 10:56:32 +0530
From:	Srivatsa Vaddagiri <vatsa@...ibm.com>
To:	Avi Kivity <avi@...hat.com>
Cc:	Andi Kleen <andi@...stfloor.org>, Gleb Natapov <gleb@...hat.com>,
	linux-kernel@...r.kernel.org, kvm@...r.kernel.org, hpa@...or.com,
	mingo@...e.hu, npiggin@...e.de, tglx@...utronix.de,
	mtosatti@...hat.com
Subject: Re: [PATCH] use unfair spinlock when running on hypervisor.

On Wed, Jun 02, 2010 at 05:51:14AM +0300, Avi Kivity wrote:
> That's definitely the long term plan.  I consider Gleb's patch the
> first step.
> 
> Do  you have any idea how we can tackle both problems?

I recall Xen posting some solution for a similar problem:

http://lkml.org/lkml/2010/1/29/45

Wouldn't a similar approach help KVM as well?

- vatsa
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