diff options
Diffstat (limited to 'arch/x86/include/asm/msr.h')
| -rw-r--r-- | arch/x86/include/asm/msr.h | 40 |
1 files changed, 21 insertions, 19 deletions
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h index 9b0a23236836..db0b90c3b03e 100644 --- a/arch/x86/include/asm/msr.h +++ b/arch/x86/include/asm/msr.h @@ -70,14 +70,14 @@ extern struct tracepoint __tracepoint_read_msr; extern struct tracepoint __tracepoint_write_msr; extern struct tracepoint __tracepoint_rdpmc; #define msr_tracepoint_active(t) static_key_false(&(t).key) -extern void do_trace_write_msr(unsigned msr, u64 val, int failed); -extern void do_trace_read_msr(unsigned msr, u64 val, int failed); -extern void do_trace_rdpmc(unsigned msr, u64 val, int failed); +extern void do_trace_write_msr(unsigned int msr, u64 val, int failed); +extern void do_trace_read_msr(unsigned int msr, u64 val, int failed); +extern void do_trace_rdpmc(unsigned int msr, u64 val, int failed); #else #define msr_tracepoint_active(t) false -static inline void do_trace_write_msr(unsigned msr, u64 val, int failed) {} -static inline void do_trace_read_msr(unsigned msr, u64 val, int failed) {} -static inline void do_trace_rdpmc(unsigned msr, u64 val, int failed) {} +static inline void do_trace_write_msr(unsigned int msr, u64 val, int failed) {} +static inline void do_trace_read_msr(unsigned int msr, u64 val, int failed) {} +static inline void do_trace_rdpmc(unsigned int msr, u64 val, int failed) {} #endif static inline unsigned long long native_read_msr(unsigned int msr) @@ -115,8 +115,8 @@ static inline unsigned long long native_read_msr_safe(unsigned int msr, } /* Can be uninlined because referenced by paravirt */ -static notrace inline void __native_write_msr_notrace(unsigned int msr, - unsigned low, unsigned high) +static inline void notrace +__native_write_msr_notrace(unsigned int msr, u32 low, u32 high) { asm volatile("1: wrmsr\n" "2:\n" @@ -125,24 +125,26 @@ static notrace inline void __native_write_msr_notrace(unsigned int msr, } /* Can be uninlined because referenced by paravirt */ -static notrace inline void native_write_msr(unsigned int msr, - unsigned low, unsigned high) +static inline void notrace +native_write_msr(unsigned int msr, u32 low, u32 high) { __native_write_msr_notrace(msr, low, high); if (msr_tracepoint_active(__tracepoint_write_msr)) do_trace_write_msr(msr, ((u64)high << 32 | low), 0); } -static inline void wrmsr_notrace(unsigned msr, unsigned low, unsigned high) +static inline void +wrmsr_notrace(unsigned int msr, u32 low, u32 high) { __native_write_msr_notrace(msr, low, high); } /* Can be uninlined because referenced by paravirt */ -notrace static inline int native_write_msr_safe(unsigned int msr, - unsigned low, unsigned high) +static inline int notrace +native_write_msr_safe(unsigned int msr, u32 low, u32 high) { int err; + asm volatile("2: wrmsr ; xor %[err],%[err]\n" "1:\n\t" ".section .fixup,\"ax\"\n\t" @@ -235,7 +237,7 @@ do { \ (void)((high) = (u32)(__val >> 32)); \ } while (0) -static inline void wrmsr(unsigned msr, unsigned low, unsigned high) +static inline void wrmsr(unsigned int msr, u32 low, u32 high) { native_write_msr(msr, low, high); } @@ -243,13 +245,13 @@ static inline void wrmsr(unsigned msr, unsigned low, unsigned high) #define rdmsrl(msr, val) \ ((val) = native_read_msr((msr))) -static inline void wrmsrl(unsigned msr, u64 val) +static inline void wrmsrl(unsigned int msr, u64 val) { native_write_msr(msr, (u32)(val & 0xffffffffULL), (u32)(val >> 32)); } /* wrmsr with exception handling */ -static inline int wrmsr_safe(unsigned msr, unsigned low, unsigned high) +static inline int wrmsr_safe(unsigned int msr, u32 low, u32 high) { return native_write_msr_safe(msr, low, high); } @@ -264,7 +266,7 @@ static inline int wrmsr_safe(unsigned msr, unsigned low, unsigned high) __err; \ }) -static inline int rdmsrl_safe(unsigned msr, unsigned long long *p) +static inline int rdmsrl_safe(unsigned int msr, unsigned long long *p) { int err; @@ -337,12 +339,12 @@ static inline int wrmsrl_on_cpu(unsigned int cpu, u32 msr_no, u64 q) static inline void rdmsr_on_cpus(const struct cpumask *m, u32 msr_no, struct msr *msrs) { - rdmsr_on_cpu(0, msr_no, &(msrs[0].l), &(msrs[0].h)); + rdmsr_on_cpu(0, msr_no, &(msrs[0].l), &(msrs[0].h)); } static inline void wrmsr_on_cpus(const struct cpumask *m, u32 msr_no, struct msr *msrs) { - wrmsr_on_cpu(0, msr_no, msrs[0].l, msrs[0].h); + wrmsr_on_cpu(0, msr_no, msrs[0].l, msrs[0].h); } static inline int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h) |