7 typedef __builtin_msr_t msr_t;
9 static msr_t rdmsr(unsigned long index)
11 return __builtin_rdmsr(index);
14 static void wrmsr(unsigned long index, msr_t msr)
16 __builtin_wrmsr(index, msr.lo, msr.hi);
19 #endif /* __ROMCC__ */
21 #if defined(__GNUC__) && !defined(__ROMCC__)
23 typedef struct msr_struct
29 static inline msr_t rdmsr(unsigned index)
32 __asm__ __volatile__ (
34 : "=a" (result.lo), "=d" (result.hi)
40 static inline void wrmsr(unsigned index, msr_t msr)
42 __asm__ __volatile__ (
45 : "c" (index), "a" (msr.lo), "d" (msr.hi)
52 #endif /* CPU_X86_MSR_H */