include/asm/msr.h

5 #include "msr-index.h"
12 #include <uapi/asm/msr.h>
13 #include <asm/shared/msr.h>
19 	struct msr		reg;
20 	struct msr __percpu	*msrs;
66 extern void do_trace_write_msr(unsigned int msr, u64 val, int failed);
67 extern void do_trace_read_msr(unsigned int msr, u64 val, int failed);
68 extern void do_trace_rdpmc(unsigned int msr, u64 val, int failed);
70 static inline void do_trace_write_msr(unsigned int msr, u64 val, int failed) {}
71 static inline void do_trace_read_msr(unsigned int msr, u64 val, int failed) {}
72 static inline void do_trace_rdpmc(unsigned int msr, u64 val, int failed) {}
82 static __always_inline unsigned long long __rdmsr(unsigned int msr)
89 		     : EAX_EDX_RET(val, low, high) : "c" (msr));
94 static __always_inline void __wrmsr(unsigned int msr, u32 low, u32 high)
99 		     : : "c" (msr), "a"(low), "d" (high) : "memory");
106 static __always_inline void __wrmsrns(u32 msr, u32 low, u32 high)
112 		     : : "c" (msr), "a"(low), "d" (high));
115 #define native_rdmsr(msr, val1, val2)			\
117 	u64 __val = __rdmsr((msr));			\
122 #define native_wrmsr(msr, low, high)			\
123 	__wrmsr(msr, low, high)
125 #define native_wrmsrl(msr, val)				\
126 	__wrmsr((msr), (u32)((u64)(val)),		\
129 static inline unsigned long long native_read_msr(unsigned int msr)
133 	val = __rdmsr(msr);
136 		do_trace_read_msr(msr, val, 0);
141 static inline unsigned long long native_read_msr_safe(unsigned int msr,
150 		     : "c" (msr));
152 		do_trace_read_msr(msr, EAX_EDX_VAL(val, low, high), *err);
158 native_write_msr(unsigned int msr, u32 low, u32 high)
160 	__wrmsr(msr, low, high);
163 		do_trace_write_msr(msr, ((u64)high << 32 | low), 0);
168 native_write_msr_safe(unsigned int msr, u32 low, u32 high)
176 		     : "c" (msr), "0" (low), "d" (high)
179 		do_trace_write_msr(msr, ((u64)high << 32 | low), err);
260 #define rdmsr(msr, low, high)					\
262 	u64 __val = native_read_msr((msr));			\
267 static inline void wrmsr(unsigned int msr, u32 low, u32 high)
269 	native_write_msr(msr, low, high);
272 #define rdmsrl(msr, val)			\
273 	((val) = native_read_msr((msr)))
275 static inline void wrmsrl(unsigned int msr, u64 val)
277 	native_write_msr(msr, (u32)(val & 0xffffffffULL), (u32)(val >> 32));
281 static inline int wrmsr_safe(unsigned int msr, u32 low, u32 high)
283 	return native_write_msr_safe(msr, low, high);
287 #define rdmsr_safe(msr, low, high)				\
290 	u64 __val = native_read_msr_safe((msr), &__err);	\
296 static inline int rdmsrl_safe(unsigned int msr, unsigned long long *p)
300 	*p = native_read_msr_safe(msr, &err);
315 static __always_inline void wrmsrns(u32 msr, u64 val)
317 	__wrmsrns(msr, val, val >> 32);
323 static inline int wrmsrl_safe(u32 msr, u64 val)
325 	return wrmsr_safe(msr, (u32)val,  (u32)(val >> 32));
328 struct msr __percpu *msrs_alloc(void);
329 void msrs_free(struct msr __percpu *msrs);
330 int msr_set_bit(u32 msr, u8 bit);
331 int msr_clear_bit(u32 msr, u8 bit);
338 void rdmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr __percpu *msrs);
339 void wrmsr_on_cpus(const struct cpumask *mask, u32 msr_no, struct msr __percpu *msrs);
368 				struct msr __percpu *msrs)
373 				struct msr __percpu *msrs)