Re: [Xen-devel] [PATCH 5/8] ACPI: add processor driver for Xen virtual CPUs.

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On Thu, Dec 01, 2011 at 09:24:23AM +0000, Jan Beulich wrote:
> >>> On 30.11.11 at 18:21, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:
> > --- a/drivers/acpi/Makefile
> > +++ b/drivers/acpi/Makefile
> > @@ -66,6 +66,7 @@ obj-$(CONFIG_ACPI_CUSTOM_METHOD)+= custom_method.o
> >  # processor has its own "processor." module_param namespace
> >  processor-y			:= processor_driver.o processor_throttling.o
> >  processor-y			+= processor_idle.o processor_thermal.o
> > +processor-y			+= processor_xen.o
> 
> This should minimally be processor-$(CONFIG_XEN), with other things
> adjusted as necessary.

I was under the impression that this was required to get the processor_xen.ko
to be a module. Otherwise it would only compile as built-in.

Liang, can you chime in please?

> 
> >  processor-$(CONFIG_CPU_FREQ)	+= processor_perflib.o
> >  
> >  obj-$(CONFIG_ACPI_PROCESSOR_AGGREGATOR) += acpi_pad.o
> >...
> > --- a/drivers/xen/Kconfig
> > +++ b/drivers/xen/Kconfig
> > @@ -117,6 +117,11 @@ config XEN_SYS_HYPERVISOR
> >  	 virtual environment, /sys/hypervisor will still be present,
> >  	 but will have no xen contents.
> >  
> > +config ACPI_PROCESSOR_XEN
> > +	tristate
> > +	depends on XEN_DOM0 && ACPI_PROCESSOR && CPU_FREQ
> > +	default m
> 
> default ACPI_PROCESSOR
> 
> > +
> >  config XEN_XENBUS_FRONTEND
> >  	tristate
> >  
> > diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile
> > index 974fffd..f67450c 100644
> > --- a/drivers/xen/Makefile
> > +++ b/drivers/xen/Makefile
> > @@ -19,6 +19,9 @@ obj-$(CONFIG_XEN_TMEM)			+= tmem.o
> >  obj-$(CONFIG_SWIOTLB_XEN)		+= swiotlb-xen.o
> >  obj-$(CONFIG_XEN_DOM0)			+= pci.o
> >  obj-$(CONFIG_XEN_PCIDEV_BACKEND)	+= xen-pciback/
> > +ifdef CONFIG_ACPI_PROCESSOR_XEN
> > +obj-$(CONFIG_ACPI_PROCESSOR)		+= acpi_processor.o
> > +endif
> 
> obj-$(CONFIG_ACPI_PPROCESSOR_XEN)
> 
> Jan
> 
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