diff options
Diffstat (limited to 'arch/x86/include/asm/msr.h')
| -rw-r--r-- | arch/x86/include/asm/msr.h | 23 |
1 files changed, 23 insertions, 0 deletions
diff --git a/arch/x86/include/asm/msr.h b/arch/x86/include/asm/msr.h index 638bf6241807..22603764e7db 100644 --- a/arch/x86/include/asm/msr.h +++ b/arch/x86/include/asm/msr.h @@ -12,6 +12,17 @@ #include <asm/asm.h> #include <asm/errno.h> +#include <asm/cpumask.h> + +struct msr { + union { + struct { + u32 l; + u32 h; + }; + u64 q; + }; +}; static inline unsigned long long native_read_tscp(unsigned int *aux) { @@ -216,6 +227,8 @@ do { \ #ifdef CONFIG_SMP int rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h); int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h); +void rdmsr_on_cpus(const cpumask_t *mask, u32 msr_no, struct msr *msrs); +void wrmsr_on_cpus(const cpumask_t *mask, u32 msr_no, struct msr *msrs); int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h); int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h); #else /* CONFIG_SMP */ @@ -229,6 +242,16 @@ static inline int wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h) wrmsr(msr_no, l, h); return 0; } +static inline void rdmsr_on_cpus(const cpumask_t *m, u32 msr_no, + struct msr *msrs) +{ + rdmsr_on_cpu(0, msr_no, &(msrs[0].l), &(msrs[0].h)); +} +static inline void wrmsr_on_cpus(const cpumask_t *m, u32 msr_no, + struct msr *msrs) +{ + 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) { |