pSeries run as a guest and might need pv-qspinlock.

Signed-off-by: Pan Xinhui <xinhui....@linux.vnet.ibm.com>
---
 arch/powerpc/kernel/Makefile           | 1 +
 arch/powerpc/platforms/pseries/Kconfig | 8 ++++++++
 2 files changed, 9 insertions(+)

diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index fe4c075..efd2f3d 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -49,6 +49,7 @@ obj-$(CONFIG_PPC_970_NAP)     += idle_power4.o
 obj-$(CONFIG_PPC_P7_NAP)       += idle_book3s.o
 procfs-y                       := proc_powerpc.o
 obj-$(CONFIG_PROC_FS)          += $(procfs-y)
+obj-$(CONFIG_PARAVIRT_SPINLOCKS)       += paravirt.o
 rtaspci-$(CONFIG_PPC64)-$(CONFIG_PCI)  := rtas_pci.o
 obj-$(CONFIG_PPC_RTAS)         += rtas.o rtas-rtc.o $(rtaspci-y-y)
 obj-$(CONFIG_PPC_RTAS_DAEMON)  += rtasd.o
diff --git a/arch/powerpc/platforms/pseries/Kconfig 
b/arch/powerpc/platforms/pseries/Kconfig
index f669323..46632e4 100644
--- a/arch/powerpc/platforms/pseries/Kconfig
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -128,3 +128,11 @@ config HV_PERF_CTRS
          systems. 24x7 is available on Power 8 systems.
 
           If unsure, select Y.
+
+config PARAVIRT_SPINLOCKS
+       bool "Paravirtialization support for qspinlock"
+       depends on PPC_SPLPAR && QUEUED_SPINLOCKS
+       default y
+       help
+         If platform supports virtualization, for example PowerVM, this option
+         can let guest have a better performace.
-- 
2.4.11

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