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-rw-r--r--drivers/xen/Kconfig16
1 files changed, 16 insertions, 0 deletions
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index a1ced521cf74..94243136f6bf 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -178,4 +178,20 @@ config XEN_PRIVCMD
depends on XEN
default m
+config XEN_ACPI_PROCESSOR
+ tristate "Xen ACPI processor"
+ depends on XEN && X86 && ACPI_PROCESSOR && CPU_FREQ
+ default m
+ help
+ This ACPI processor uploads Power Management information to the Xen hypervisor.
+
+ To do that the driver parses the Power Management data and uploads said
+ information to the Xen hypervisor. Then the Xen hypervisor can select the
+ proper Cx and Pxx states. It also registers itslef as the SMM so that
+ other drivers (such as ACPI cpufreq scaling driver) will not load.
+
+ To compile this driver as a module, choose M here: the
+ module will be called xen_acpi_processor If you do not know what to choose,
+ select M here. If the CPUFREQ drivers are built in, select Y here.
+
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