11 files changed, 42 insertions, 28 deletions

diff --git a/arch/x86/include/asm/apic.h b/arch/x86/include/asm/apic.h
index bb7d47925847..6f15b29005a1 100644
--- a/arch/x86/include/asm/apic.h
+++ b/arch/x86/include/asm/apic.h
@@ -70,9 +70,6 @@ static inline void default_inquire_remote_apic(int apicid)
  */
 #ifdef CONFIG_PARAVIRT
 #include <asm/paravirt.h>
-#else
-#define setup_boot_clock setup_boot_APIC_clock
-#define setup_secondary_clock setup_secondary_APIC_clock
 #endif
 
 #ifdef CONFIG_X86_64
@@ -245,6 +242,8 @@ static inline void lapic_shutdown(void) { }
 static inline void init_apic_mappings(void) { }
 static inline void disable_local_APIC(void) { }
 static inline void apic_disable(void) { }
+# define setup_boot_APIC_clock x86_init_noop
+# define setup_secondary_APIC_clock x86_init_noop
 #endif /* !CONFIG_X86_LOCAL_APIC */
 
 #ifdef CONFIG_X86_64
diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h
index 7ce415e844b6..825674a968d1 100644
--- a/arch/x86/include/asm/paravirt.h
+++ b/arch/x86/include/asm/paravirt.h
@@ -333,18 +333,6 @@ static inline void slow_down_io(void)
 #endif
 }
 
-#ifdef CONFIG_X86_LOCAL_APIC
-static inline void setup_boot_clock(void)
-{
-        PVOP_VCALL0(pv_apic_ops.setup_boot_clock);
-}
-
-static inline void setup_secondary_clock(void)
-{
-        PVOP_VCALL0(pv_apic_ops.setup_secondary_clock);
-}
-#endif
-
 #ifdef CONFIG_SMP
 static inline void startup_ipi_hook(int phys_apicid, unsigned long start_eip,
                                     unsigned long start_esp)
diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h
index ecc74e5ad407..1da89276d142 100644
--- a/arch/x86/include/asm/paravirt_types.h
+++ b/arch/x86/include/asm/paravirt_types.h
@@ -218,9 +218,6 @@ struct pv_irq_ops {
 
 struct pv_apic_ops {
 #ifdef CONFIG_X86_LOCAL_APIC
-        void (*setup_boot_clock)(void);
-        void (*setup_secondary_clock)(void);
-
         void (*startup_ipi_hook)(int phys_apicid,
                                  unsigned long start_eip,
                                  unsigned long start_esp);
diff --git a/arch/x86/include/asm/x86_init.h b/arch/x86/include/asm/x86_init.h
index b9bb4faefc48..b7d258f4c401 100644
--- a/arch/x86/include/asm/x86_init.h
+++ b/arch/x86/include/asm/x86_init.h
@@ -79,6 +79,15 @@ struct x86_init_paging {
 };
 
 /**
+ * struct x86_init_timers - platform specific timer setup
+ * @setup_perpcu_clockev:       set up the per cpu clock event device for the
+ *                              boot cpu
+ */
+struct x86_init_timers {
+        void (*setup_percpu_clockev)(void);
+};
+
+/**
  * struct x86_init_ops - functions for platform specific setup
  *
  */
@@ -88,9 +97,19 @@ struct x86_init_ops {
         struct x86_init_irqs            irqs;
         struct x86_init_oem             oem;
         struct x86_init_paging          paging;
+        struct x86_init_timers          timers;
+};
+
+/**
+ * struct x86_cpuinit_ops - platform specific cpu hotplug setups
+ * @setup_percpu_clockev:       set up the per cpu clock event device
+ */
+struct x86_cpuinit_ops {
+        void (*setup_percpu_clockev)(void);
 };
 
 extern struct x86_init_ops x86_init;
+extern struct x86_cpuinit_ops x86_cpuinit;
 
 extern void x86_init_noop(void);
 extern void x86_init_uint_noop(unsigned int unused);
diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c
index 0a1c2830ec66..ce0098066e91 100644
--- a/arch/x86/kernel/apic/apic.c
+++ b/arch/x86/kernel/apic/apic.c
@@ -36,6 +36,7 @@
 #include <linux/mm.h>
 
 #include <asm/perf_counter.h>
+#include <asm/x86_init.h>
 #include <asm/pgalloc.h>
 #include <asm/atomic.h>
 #include <asm/mpspec.h>
@@ -1701,7 +1702,7 @@ int __init APIC_init_uniprocessor(void)
         localise_nmi_watchdog();
 #endif
 
-        setup_boot_clock();
+        x86_init.timers.setup_percpu_clockev();
 #ifdef CONFIG_X86_64
         check_nmi_watchdog();
 #endif
diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c
index 223af43f1526..64e9b5f59d2d 100644
--- a/arch/x86/kernel/kvmclock.c
+++ b/arch/x86/kernel/kvmclock.c
@@ -22,6 +22,8 @@
 #include <asm/msr.h>
 #include <asm/apic.h>
 #include <linux/percpu.h>
+
+#include <asm/x86_init.h>
 #include <asm/reboot.h>
 
 #define KVM_SCALE 22
@@ -187,7 +189,8 @@ void __init kvmclock_init(void)
                 pv_time_ops.sched_clock = kvm_clock_read;
                 pv_time_ops.get_tsc_khz = kvm_get_tsc_khz;
 #ifdef CONFIG_X86_LOCAL_APIC
-                pv_apic_ops.setup_secondary_clock = kvm_setup_secondary_clock;
+                x86_cpuinit.setup_percpu_clockev =
+                        kvm_setup_secondary_clock;
 #endif
 #ifdef CONFIG_SMP
                 smp_ops.smp_prepare_boot_cpu = kvm_smp_prepare_boot_cpu;
diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index 8167be0b68ca..1ed32c79679d 100644
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -387,8 +387,6 @@ struct pv_cpu_ops pv_cpu_ops = {
 
 struct pv_apic_ops pv_apic_ops = {
 #ifdef CONFIG_X86_LOCAL_APIC
-        .setup_boot_clock = setup_boot_APIC_clock,
-        .setup_secondary_clock = setup_secondary_APIC_clock,
         .startup_ipi_hook = paravirt_nop,
 #endif
 };
diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c
index 2fecda69ee64..6eb81a87b4b7 100644
--- a/arch/x86/kernel/smpboot.c
+++ b/arch/x86/kernel/smpboot.c
@@ -323,7 +323,7 @@ notrace static void __cpuinit start_secondary(void *unused)
         /* enable local interrupts */
         local_irq_enable();
 
-        setup_secondary_clock();
+        x86_cpuinit.setup_percpu_clockev();
 
         wmb();
         cpu_idle();
@@ -1112,7 +1112,7 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus)
 
         printk(KERN_INFO "CPU%d: ", 0);
         print_cpu_info(&cpu_data(0));
-        setup_boot_clock();
+        x86_init.timers.setup_percpu_clockev();
 
         if (is_uv_system())
                 uv_system_init();
diff --git a/arch/x86/kernel/vmi_32.c b/arch/x86/kernel/vmi_32.c
index 95a7289e4b0c..b43b6685cae1 100644
--- a/arch/x86/kernel/vmi_32.c
+++ b/arch/x86/kernel/vmi_32.c
@@ -821,8 +821,8 @@ static inline int __init activate_vmi(void)
                 pv_time_ops.get_wallclock = vmi_get_wallclock;
                 pv_time_ops.set_wallclock = vmi_set_wallclock;
 #ifdef CONFIG_X86_LOCAL_APIC
-                pv_apic_ops.setup_boot_clock = vmi_time_bsp_init;
-                pv_apic_ops.setup_secondary_clock = vmi_time_ap_init;
+                x86_init.timers.setup_percpu_clockev = vmi_time_bsp_init;
+                x86_cpuinit.setup_percpu_clockev = vmi_time_ap_init;
 #endif
                 pv_time_ops.sched_clock = vmi_sched_clock;
                 pv_time_ops.get_tsc_khz = vmi_tsc_khz;
diff --git a/arch/x86/kernel/x86_init.c b/arch/x86/kernel/x86_init.c
index 7df020e6740d..e666a98db7cd 100644
--- a/arch/x86/kernel/x86_init.c
+++ b/arch/x86/kernel/x86_init.c
@@ -9,6 +9,7 @@
 #include <asm/paravirt.h>
 #include <asm/mpspec.h>
 #include <asm/setup.h>
+#include <asm/apic.h>
 #include <asm/e820.h>
 #include <asm/irq.h>
 
@@ -54,4 +55,12 @@ struct __initdata x86_init_ops x86_init = {
                 .pagetable_setup_start  = native_pagetable_setup_start,
                 .pagetable_setup_done   = native_pagetable_setup_done,
         },
+
+        .timers = {
+                .setup_percpu_clockev   = setup_boot_APIC_clock,
+        },
+};
+
+__cpuinitdata struct x86_cpuinit_ops x86_cpuinit = {
+        .setup_percpu_clockev           = setup_secondary_APIC_clock,
 };
diff --git a/arch/x86/xen/enlighten.c b/arch/x86/xen/enlighten.c
index a924caa168dd..14e597e0c160 100644
--- a/arch/x86/xen/enlighten.c
+++ b/arch/x86/xen/enlighten.c
@@ -912,8 +912,6 @@ static const struct pv_cpu_ops xen_cpu_ops __initdata = {
 
 static const struct pv_apic_ops xen_apic_ops __initdata = {
 #ifdef CONFIG_X86_LOCAL_APIC
-        .setup_boot_clock = paravirt_nop,
-        .setup_secondary_clock = paravirt_nop,
         .startup_ipi_hook = paravirt_nop,
 #endif
 };
@@ -979,6 +977,8 @@ asmlinkage void __init xen_start_kernel(void)
         x86_init.resources.memory_setup = xen_memory_setup;
         x86_init.oem.arch_setup = xen_arch_setup;
         x86_init.oem.banner = xen_banner;
+        x86_init.timers.setup_percpu_clockev = x86_init_noop;
+        x86_cpuinit.setup_percpu_clockev = x86_init_noop;
 
 #ifdef CONFIG_X86_64
         /*