+static inline void native_clts(void)
+{
+ asm volatile ("clts");
+}
+
+static inline unsigned long native_read_cr0(void)
+{
+ unsigned long val;
+ asm volatile("movl %%cr0,%0\n\t" :"=r" (val));
+ return val;
+}
+
+static inline void native_write_cr0(unsigned long val)
+{
+ asm volatile("movl %0,%%cr0": :"r" (val));
+}
+
+static inline unsigned long native_read_cr2(void)
+{
+ unsigned long val;
+ asm volatile("movl %%cr2,%0\n\t" :"=r" (val));
+ return val;
+}
+
+static inline void native_write_cr2(unsigned long val)
+{
+ asm volatile("movl %0,%%cr2": :"r" (val));
+}
+
+static inline unsigned long native_read_cr3(void)
+{
+ unsigned long val;
+ asm volatile("movl %%cr3,%0\n\t" :"=r" (val));
+ return val;
+}
+
+static inline void native_write_cr3(unsigned long val)
+{
+ asm volatile("movl %0,%%cr3": :"r" (val));
+}
+
+static inline unsigned long native_read_cr4(void)
+{
+ unsigned long val;
+ asm volatile("movl %%cr4,%0\n\t" :"=r" (val));
+ return val;
+}
+
+static inline unsigned long native_read_cr4_safe(void)
+{
+ unsigned long val;
+ /* This could fault if %cr4 does not exist */
+ asm("1: movl %%cr4, %0 \n"
+ "2: \n"
+ ".section __ex_table,\"a\" \n"
+ ".long 1b,2b \n"
+ ".previous \n"
+ : "=r" (val): "0" (0));
+ return val;
+}
+
+static inline void native_write_cr4(unsigned long val)
+{
+ asm volatile("movl %0,%%cr4": :"r" (val));
+}
+
+static inline void native_wbinvd(void)
+{
+ asm volatile("wbinvd": : :"memory");
+}
+
+
+#ifdef CONFIG_PARAVIRT
+#include <asm/paravirt.h>
+#else
+#define read_cr0() (native_read_cr0())
+#define write_cr0(x) (native_write_cr0(x))
+#define read_cr2() (native_read_cr2())
+#define write_cr2(x) (native_write_cr2(x))
+#define read_cr3() (native_read_cr3())
+#define write_cr3(x) (native_write_cr3(x))
+#define read_cr4() (native_read_cr4())
+#define read_cr4_safe() (native_read_cr4_safe())
+#define write_cr4(x) (native_write_cr4(x))
+#define wbinvd() (native_wbinvd())
+
+/* Clear the 'TS' bit */
+#define clts() (native_clts())
+
+#endif/* CONFIG_PARAVIRT */
+
+/* Set the 'TS' bit */