search for: acpi_processor_ppc_has_chang

...rivers/acpi/processor_core.c) , which all the Cx/Px parsing event will go to. This driver will call its acpi processor event handler, e.g. add/remove, start/stop, notify to handle these events. These event handlers in turn will call some library functions (in drivers/acpi/processor_perflib.c), e.g. acpi_processor_ppc_has_changed, acpi_processor_ppc_has_changed, acpi_processor_cst_has_changed, to finish the acpi info parsing. So the conclusion is: adding hooks in acpi_processor_driver and those related library functions will satisfy our requirement. To make the added hook cleaner, we introduce an interface called extern...

Hello, The following patches are a solution to a problem we have encountered when using the Xen hypervisor: - Need Pxx/Cxx states to save on power consumption when using Xen (we do want those datacenters to consume less power!), - Also need to figure out the Turbo mode so that the scheduler can properly boost a core for CPU bound guests. In essence the Xen hypervisor requires that