| 93,19 → 93,9 |
|---|
| static inline unsigned long long native_read_msr_safe(unsigned int msr, |
| int *err) |
| { |
| DECLARE_ARGS(val, low, high); |
| |
| asm volatile("2: rdmsr ; xor %[err],%[err]\n" |
| "1:\n\t" |
| ".section .fixup,\"ax\"\n\t" |
| "3: mov %[fault],%[err] ; jmp 1b\n\t" |
| ".previous\n\t" |
| _ASM_EXTABLE(2b, 3b) |
| : [err] "=r" (*err), EAX_EDX_RET(val, low, high) |
| : "c" (msr), [fault] "i" (-EIO)); |
| if (msr_tracepoint_active(__tracepoint_read_msr)) |
| do_trace_read_msr(msr, EAX_EDX_VAL(val, low, high), *err); |
| return EAX_EDX_VAL(val, low, high); |
| #warning "FIXME: native_read_msr_safe always return err = 0!" |
| *err = 0; |
| return native_read_msr(msr); |
| } |
| |
| static inline void native_write_msr(unsigned int msr, |
| 120,20 → 110,9 |
|---|
| notrace static inline int native_write_msr_safe(unsigned int msr, |
| unsigned low, unsigned high) |
| { |
| int err; |
| asm volatile("2: wrmsr ; xor %[err],%[err]\n" |
| "1:\n\t" |
| ".section .fixup,\"ax\"\n\t" |
| "3: mov %[fault],%[err] ; jmp 1b\n\t" |
| ".previous\n\t" |
| _ASM_EXTABLE(2b, 3b) |
| : [err] "=a" (err) |
| : "c" (msr), "0" (low), "d" (high), |
| [fault] "i" (-EIO) |
| : "memory"); |
| if (msr_tracepoint_active(__tracepoint_write_msr)) |
| do_trace_write_msr(msr, ((u64)high << 32 | low), err); |
| return err; |
| #warning "FIXME: native_write_msr_safe always return 0!" |
| native_write_msr(msr, low, high); |
| return 0; |
| } |
| |
| extern int rdmsr_safe_regs(u32 regs[8]); |