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authorLiu Jinsong <jinsong.liu@intel.com>2013-01-25 15:43:34 +0800
committerKonrad Rzeszutek Wilk <konrad.wilk@oracle.com>2013-02-19 22:02:29 -0500
commit39adc483d378f79711f291539f20e3797337892d (patch)
tree7f045e2f284864f5f16cb3b072d2cb25e6e16801 /drivers/xen/Kconfig
parent40a58637a4fa10a2faea71f0f30ff0b3d74c6e00 (diff)
downloadop-kernel-dev-39adc483d378f79711f291539f20e3797337892d.zip
op-kernel-dev-39adc483d378f79711f291539f20e3797337892d.tar.gz
xen/acpi: ACPI cpu hotplug
This patch implement real Xen ACPI cpu hotplug driver as module. When loaded, it replaces Xen stub driver. For booting existed cpus, the driver enumerates them. For hotadded cpus, which added at runtime and notify OS via device or container event, the driver is invoked to add them, parsing cpu information, hypercalling to Xen hypervisor to add them, and finally setting up new /sys interface for them. Signed-off-by: Liu Jinsong <jinsong.liu@intel.com> Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Diffstat (limited to 'drivers/xen/Kconfig')
-rw-r--r--drivers/xen/Kconfig12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/xen/Kconfig b/drivers/xen/Kconfig
index dcffad1..5a32232 100644
--- a/drivers/xen/Kconfig
+++ b/drivers/xen/Kconfig
@@ -202,6 +202,18 @@ config XEN_ACPI_HOTPLUG_MEMORY
to hot-add memory at runtime (the hot-added memory cannot be
removed until machine stop), select Y/M here, otherwise select N.
+config XEN_ACPI_HOTPLUG_CPU
+ tristate "Xen ACPI cpu hotplug"
+ depends on XEN_DOM0 && XEN_STUB && ACPI
+ select ACPI_CONTAINER
+ default n
+ help
+ Xen ACPI cpu enumerating and hotplugging
+
+ For hotplugging, currently Xen only support ACPI cpu hotadd.
+ If you want to hotadd cpu at runtime (the hotadded cpu cannot
+ be removed until machine stop), select Y/M here.
+
config XEN_ACPI_PROCESSOR
tristate "Xen ACPI processor"
depends on XEN && X86 && ACPI_PROCESSOR && CPU_FREQ
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