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[Xen-devel] About CONFIG_ACPI_PROCESSOR_XEN

To: Yu Ke <ke.yu@xxxxxxxxx>, Tian Kevin <kevin.tian@xxxxxxxxx>, Jeremy Fitzhardinge <jeremy.fitzhardinge@xxxxxxxxxx>
Subject: [Xen-devel] About CONFIG_ACPI_PROCESSOR_XEN
From: Gianluca Guida <gianluca.guida@xxxxxxxxxx>
Date: Mon, 24 Aug 2009 14:25:14 +0100
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Hi,

While configuring dom0 kernels I've found certaing things in the
handling of CONFIG_ACPI_PROCESSOR_XEN which are confusing to me.

- In case CONFIG_ACPI_PROCESSOR is set as a module (which was the
  default in my system) the compilation will break, because
  CONFIG_ACPI_PROCESSOR_XEN will not be set.

- CONFIG_ACPI_PROCESSOR_XEN is only set when CPU_FREQ=y, but these
  functions are used (in their empty versions) even when
  CONFIG_ACPI_PROCESSOR=y and CPU_FREQ=n. Is this the intended use?

Thanks,
Gianluca

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