x86/paravirt: add hooks for spinlock operations

[linux-2.6-omap-h63xx.git] / arch / x86 / kernel / paravirt.c

diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c
index e0f571d58c19c0bfa4eeee39d89972ed2239f55f..f33816868707dca960c084858e4ab727eb10f104 100644 (file)
--- a/arch/x86/kernel/paravirt.c
+++ b/arch/x86/kernel/paravirt.c
@@ -29,6 +29,7 @@
 #include <asm/desc.h>
 #include <asm/setup.h>
 #include <asm/arch_hooks.h>
+#include <asm/pgtable.h>
 #include <asm/time.h>
 #include <asm/pgalloc.h>
 #include <asm/irq.h>
@@ -123,6 +124,7 @@ static void *get_call_destination(u8 type)
                .pv_irq_ops = pv_irq_ops,
                .pv_apic_ops = pv_apic_ops,
                .pv_mmu_ops = pv_mmu_ops,
+               .pv_lock_ops = pv_lock_ops,
        };
        return *((void **)&tmpl + type);
 }
@@ -373,6 +375,9 @@ struct pv_mmu_ops pv_mmu_ops = {
 #ifndef CONFIG_X86_64
        .pagetable_setup_start = native_pagetable_setup_start,
        .pagetable_setup_done = native_pagetable_setup_done,
+#else
+       .pagetable_setup_start = paravirt_nop,
+       .pagetable_setup_done = paravirt_nop,
 #endif
 
        .read_cr2 = native_read_cr2,
@@ -446,6 +451,15 @@ struct pv_mmu_ops pv_mmu_ops = {
        .set_fixmap = native_set_fixmap,
 };
 
+struct pv_lock_ops pv_lock_ops = {
+       .spin_is_locked = __ticket_spin_is_locked,
+       .spin_is_contended = __ticket_spin_is_contended,
+
+       .spin_lock = __ticket_spin_lock,
+       .spin_trylock = __ticket_spin_trylock,
+       .spin_unlock = __ticket_spin_unlock,
+};
+
 EXPORT_SYMBOL_GPL(pv_time_ops);
 EXPORT_SYMBOL    (pv_cpu_ops);
 EXPORT_SYMBOL    (pv_mmu_ops);