On Tue, Feb 18, 2014 at 07:42:20PM -0500, Waiman Long wrote: > On 02/18/2014 04:28 PM, Peter Zijlstra wrote: > >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. > > I don't think there is X86_FEATURE flag that indicates running in a guest. > In fact, a guest should never find out if it is running virtualized. No it very much should; how else is paravirt ever going to work? -- To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
