Re: [PATCH v4 0/3] qspinlock: Introducing a 4-byte queue spinlock

[Peter Zijlstra]

On Tue, Feb 18, 2014 at 02:30:12PM -0500, Waiman Long wrote:
> I will start looking at how to make it work with paravirt. Hopefully, it
> won't take too long.

The cheap way out is to simply switch to the test-and-set spinlock on
whatever X86_FEATURE_ indicates a guest I suppose.
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