wrmsr (msr, lo, hi);
}
+/* wrmsr with exception handling */
+#define wrmsr_safe(msr,a,b) ({ int ret__; \
+ asm volatile("2: wrmsr ; xorl %0,%0\n" \
+ "1:\n\t" \
+ ".section .fixup,\"ax\"\n\t" \
+ "3: movl %4,%0 ; jmp 1b\n\t" \
+ ".previous\n\t" \
+ ".section __ex_table,\"a\"\n" \
+ " .align 4\n\t" \
+ " .long 2b,3b\n\t" \
+ ".previous" \
+ : "=a" (ret__) \
+ : "c" (msr), "0" (a), "d" (b), "i" (-EFAULT));\
+ ret__; })
+
#define rdtsc(low,high) \
__asm__ __volatile__("rdtsc" : "=a" (low), "=d" (high))