fedora core 6 1.2949 + vserver 2.2.0

[linux-2.6.git] / include / asm-x86_64 / mach-xen / asm / tlbflush.h

diff --git a/include/asm-x86_64/mach-xen/asm/tlbflush.h b/include/asm-x86_64/mach-xen/asm/tlbflush.h
index 3a81774..1836b00 100644 (file)
--- a/include/asm-x86_64/mach-xen/asm/tlbflush.h
+++ b/include/asm-x86_64/mach-xen/asm/tlbflush.h
@@ -4,18 +4,35 @@
 #include <linux/mm.h>
 #include <asm/processor.h>
 
-#define __flush_tlb()  xen_tlb_flush()
+static inline unsigned long get_cr3(void)
+{
+       unsigned long cr3;
+       asm volatile("mov %%cr3,%0" : "=r" (cr3));
+       return machine_to_phys(cr3);
+}
 
-/*
- * Global pages have to be flushed a bit differently. Not a real
- * performance problem because this does not happen often.
- */
-#define __flush_tlb_global()   xen_tlb_flush()
+static inline void set_cr3(unsigned long cr3)
+{
+       BUG();
+       /* What the hell is this supposed to do: JQ */
+       asm volatile("mov %0,%%cr3" :: "r" (cr3) : "memory");
+}
 
+#define __flush_tlb()  xen_tlb_flush()
+
+static inline unsigned long get_cr4(void)
+{
+       unsigned long cr4;
+       asm volatile("mov %%cr4,%0" : "=r" (cr4));
+       return cr4;
+}
 
-extern unsigned long pgkern_mask;
+static inline void set_cr4(unsigned long cr4)
+{
+       asm volatile("mov %0,%%cr4" :: "r" (cr4) : "memory");
+}
 
-#define __flush_tlb_all() __flush_tlb_global()
+#define __flush_tlb_all() xen_tlb_flush()
 
 #define __flush_tlb_one(addr)  xen_invlpg((unsigned long)addr)