Messages in this thread | | | Date | Thu, 24 Mar 2011 03:18:14 -0400 (EDT) | From | Len Brown <> | Subject | Re: [RFC PATCH V4 4/5] cpuidle: driver for xen |
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Is a CONFIG_XEN kernel supposed to use just HLT in idle?
xen_arch_setup() does this:
pm_idle = default_idle; boot_option_idle_override = IDLE_HALT;
which has that effect. I guess this makes sense b/c the CONFIG_XEN kernel is Dom0 and the real C-sates are done by the hypervisor?
Would the same CONFIG_XEN kernel binary ever not run xen_arch_setup(), run on raw hardware, and want to use idle states other than HLT?
thanks, -Len Brown, Intel Open Source Technology Center
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