From 92e3229dcdc80ff0b6304f14c578d76e7e10e226 Mon Sep 17 00:00:00 2001 From: "Liu, Jinsong" Date: Thu, 8 Nov 2012 05:41:13 +0000 Subject: xen/acpi: ACPI PAD driver PAD is acpi Processor Aggregator Device which provides a control point that enables the platform to perform specific processor configuration and control that applies to all processors in the platform. This patch is to implement Xen acpi pad logic. When running under Xen virt platform, native pad driver would not work. Instead Xen pad driver, a self-contained and thin logic level, would take over acpi pad logic. When acpi pad notify OSPM, xen pad logic intercept and parse _PUR object to get the expected idle cpu number, and then hypercall to hypervisor. Xen hypervisor would then do the rest work, say, core parking, to idle specific number of cpus on its own policy. Signed-off-by: Jan Beulich Signed-off-by: Liu Jinsong Signed-off-by: Konrad Rzeszutek Wilk --- drivers/xen/Makefile | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'drivers/xen/Makefile') diff --git a/drivers/xen/Makefile b/drivers/xen/Makefile index 0e8637035457..3c397170f39c 100644 --- a/drivers/xen/Makefile +++ b/drivers/xen/Makefile @@ -10,7 +10,8 @@ CFLAGS_features.o := $(nostackp) dom0-$(CONFIG_PCI) += pci.o dom0-$(CONFIG_USB_SUPPORT) += dbgp.o -dom0-$(CONFIG_ACPI) += acpi.o +dom0-$(CONFIG_ACPI) += acpi.o $(xen-pad-y) +xen-pad-$(CONFIG_X86) += xen-acpi-pad.o dom0-$(CONFIG_X86) += pcpu.o obj-$(CONFIG_XEN_DOM0) += $(dom0-y) obj-$(CONFIG_BLOCK) += biomerge.o -- cgit v1.2.2