[Xen-devel] [RFC PATCH KERNEL 4/4] x86/xen: put setup.c, pmu.c and apic.c under CONFIG_XEN_PV

[Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>]

xen_pmu_init/finish() functions are used in suspend.c and
enlighten_common.c, add stubs for now.

Signed-off-by: Vitaly Kuznetsov <vkuznets@xxxxxxxxxx>
---
 arch/x86/xen/Kconfig  | 2 +-
 arch/x86/xen/Makefile | 4 ++--
 arch/x86/xen/pmu.h    | 5 +++++
 3 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/arch/x86/xen/Kconfig b/arch/x86/xen/Kconfig
index e25c93e..484d6b8 100644
--- a/arch/x86/xen/Kconfig
+++ b/arch/x86/xen/Kconfig
@@ -6,7 +6,6 @@ config XEN
        bool "Xen guest support"
        depends on PARAVIRT
        select PARAVIRT_CLOCK
-       select XEN_HAVE_VPMU
        depends on X86_64 || (X86_32 && X86_PAE)
        depends on X86_LOCAL_APIC && X86_TSC
        help
@@ -18,6 +17,7 @@ config XEN_PV
        bool "Xen PV guest support"
        default y
        depends on XEN
+       select XEN_HAVE_VPMU
        help
          Support running as a Xen PV guest.
 
diff --git a/arch/x86/xen/Makefile b/arch/x86/xen/Makefile
index 121a368..8ec52f0 100644
--- a/arch/x86/xen/Makefile
+++ b/arch/x86/xen/Makefile
@@ -13,9 +13,9 @@ CFLAGS_mmu.o                  := $(nostackp)
 obj-y          := enlighten_common.o multicalls.o \
                        irq.o time.o xen-asm.o xen-asm_$(BITS).o \
                        grant-table.o suspend.o platform-pci-unplug.o \
-                       apic.o pmu.o mmu_common.o
+                       mmu_common.o
 
-obj-$(CONFIG_XEN_PV)           += enlighten.o setup.o mmu.o p2m.o
+obj-$(CONFIG_XEN_PV)           += enlighten.o setup.o mmu.o p2m.o pmu.o apic.o
 obj-$(CONFIG_XEN_PVHVM)                += enlighten_hvm.o mmu_hvm.o
 
 obj-$(CONFIG_EVENT_TRACING) += trace.o
diff --git a/arch/x86/xen/pmu.h b/arch/x86/xen/pmu.h
index af5f0ad..4be5355 100644
--- a/arch/x86/xen/pmu.h
+++ b/arch/x86/xen/pmu.h
@@ -4,8 +4,13 @@
 #include <xen/interface/xenpmu.h>
 
 irqreturn_t xen_pmu_irq_handler(int irq, void *dev_id);
+#ifdef CONFIG_XEN_HAVE_VPMU
 void xen_pmu_init(int cpu);
 void xen_pmu_finish(int cpu);
+#else
+static inline void xen_pmu_init(int cpu) {}
+static inline void xen_pmu_finish(int cpu) {}
+#endif
 bool is_xen_pmu(int cpu);
 bool pmu_msr_read(unsigned int msr, uint64_t *val, int *err);
 bool pmu_msr_write(unsigned int msr, uint32_t low, uint32_t high, int *err);
-- 
2.7.4


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