Messages in this thread | | | Date | Mon, 29 Jul 2019 11:08:06 -0400 | From | Steven Rostedt <> | Subject | Re: [patch 11/12] hrtimer: Prepare support for PREEMPT_RT |
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On Sun, 28 Jul 2019 11:06:50 +0200 Juergen Gross <jgross@suse.com> wrote:
> In case we'd want to change that I'd rather not special case timers, but > apply a more general solution to the quite large amount of similar > cases: I assume the majority of cpu_relax() uses are affected, so adding > a paravirt op cpu_relax() might be appropriate. > > That could be put under CONFIG_PARAVIRT_SPINLOCK. If called in a guest > it could ask the hypervisor to give up the physical cpu voluntarily > (in Xen this would be a "yield" hypercall).
Seems paravirt wants our cpu_chill() ;-)
-- Steve
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