[PATCH] x86: PARAVIRT: add hooks to intercept mm creation and destruction

[GitHub/mt8127/android_kernel_alcatel_ttab.git] / include / asm-i386 / mmu_context.h

diff --git a/include/asm-i386/mmu_context.h b/include/asm-i386/mmu_context.h
index 62b7bf1840942013a0a258a039a03e90c8458a66..8198d1cca1f31264dc6b0ee4da90cdd0c13cd323 100644 (file)
--- a/include/asm-i386/mmu_context.h
+++ b/include/asm-i386/mmu_context.h
@@ -5,6 +5,16 @@
 #include <asm/atomic.h>
 #include <asm/pgalloc.h>
 #include <asm/tlbflush.h>
+#include <asm/paravirt.h>
+#ifndef CONFIG_PARAVIRT
+#include <asm-generic/mm_hooks.h>
+
+static inline void paravirt_activate_mm(struct mm_struct *prev,
+                                       struct mm_struct *next)
+{
+}
+#endif /* !CONFIG_PARAVIRT */
+
 
 /*
  * Used for LDT copy/destruction.
@@ -44,7 +54,7 @@ static inline void switch_mm(struct mm_struct *prev,
                 * load the LDT, if the LDT is different:
                 */
                if (unlikely(prev->context.ldt != next->context.ldt))
-                       load_LDT_nolock(&next->context, cpu);
+                       load_LDT_nolock(&next->context);
        }
 #ifdef CONFIG_SMP
        else {
@@ -56,16 +66,19 @@ static inline void switch_mm(struct mm_struct *prev,
                         * tlb flush IPI delivery. We must reload %cr3.
                         */
                        load_cr3(next->pgd);
-                       load_LDT_nolock(&next->context, cpu);
+                       load_LDT_nolock(&next->context);
                }
        }
 #endif
 }
 
-#define deactivate_mm(tsk, mm) \
-       asm("movl %0,%%fs ; movl %0,%%gs": :"r" (0))
+#define deactivate_mm(tsk, mm)                 \
+       asm("movl %0,%%gs": :"r" (0));
 
-#define activate_mm(prev, next) \
-       switch_mm((prev),(next),NULL)
+#define activate_mm(prev, next)                                \
+       do {                                            \
+               paravirt_activate_mm(prev, next);       \
+               switch_mm((prev),(next),NULL);          \
+       } while(0);
 
 #endif