Messages in this thread | | | Subject | Re: [PATCH v3 0/3] cpu: pseries: Cpu offline states framework | From | Peter Zijlstra <> | Date | Tue, 15 Sep 2009 14:11:41 +0200 |
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On Tue, 2009-09-15 at 17:36 +0530, Gautham R Shenoy wrote: > This patchset contains the offline state driver implemented for > pSeries. For pSeries, we define three available_hotplug_states. They are: > > online: The processor is online. > > offline: This is the the default behaviour when the cpu is offlined > even in the absense of this driver. The CPU would call make an > rtas_stop_self() call and hand over the CPU back to the resource pool, > thereby effectively deallocating that vCPU from the LPAR. > NOTE: This would result in a configuration change to the LPAR > which is visible to the outside world. > > inactive: This cedes the vCPU to the hypervisor with a cede latency > specifier value 2. > NOTE: This option does not result in a configuration change > and the vCPU would be still entitled to the LPAR to which it earlier > belong to. > > Any feedback on the patchset will be immensely valuable.
I still think its a layering violation... its the hypervisor manager that should be bothered in what state an off-lined cpu is in.
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