diff options
Diffstat (limited to 'drivers/xen/Kconfig')
| -rw-r--r-- | drivers/xen/Kconfig | 17 |
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig index a1ced521cf7..648bcd4195c 100644 --- a/drivers/xen/Kconfig +++ b/drivers/xen/Kconfig @@ -178,4 +178,21 @@ config XEN_PRIVCMD depends on XEN default m +config XEN_ACPI_PROCESSOR + tristate "Xen ACPI processor" + depends on XEN && X86 && ACPI_PROCESSOR + default y if (X86_ACPI_CPUFREQ = y || X86_POWERNOW_K8 = y) + default m if (X86_ACPI_CPUFREQ = m || X86_POWERNOW_K8 = 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. + endmenu |