diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-i386/msr.h | 12 | ||||
| -rw-r--r-- | include/asm-x86_64/msr.h | 11 |
2 files changed, 22 insertions, 1 deletions
diff --git a/include/asm-i386/msr.h b/include/asm-i386/msr.h index 9559894c7658..26861df52cc4 100644 --- a/include/asm-i386/msr.h +++ b/include/asm-i386/msr.h @@ -77,7 +77,7 @@ static inline unsigned long long native_read_pmc(void) #ifdef CONFIG_PARAVIRT #include <asm/paravirt.h> #else - +#include <linux/errno.h> /* * Access to machine-specific registers (available on 586 and better only) * Note: the rd* operations modify the parameters directly (without using @@ -148,6 +148,8 @@ static inline void wrmsrl (unsigned long msr, unsigned long long val) #ifdef CONFIG_SMP void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h); void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h); +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 */ static inline void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h) { @@ -157,6 +159,14 @@ static inline void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h) { wrmsr(msr_no, l, h); } +static inline int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h) +{ + return rdmsr_safe(msr_no, l, h); +} +static inline int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h) +{ + return wrmsr_safe(msr_no, l, h); +} #endif /* CONFIG_SMP */ #endif #endif diff --git a/include/asm-x86_64/msr.h b/include/asm-x86_64/msr.h index a524f0325673..d5c55b80da54 100644 --- a/include/asm-x86_64/msr.h +++ b/include/asm-x86_64/msr.h @@ -4,6 +4,7 @@ #include <asm/msr-index.h> #ifndef __ASSEMBLY__ +#include <linux/errno.h> /* * Access to machine-specific registers (available on 586 and better only) * Note: the rd* operations modify the parameters directly (without using @@ -162,6 +163,8 @@ static inline unsigned int cpuid_edx(unsigned int op) #ifdef CONFIG_SMP void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h); void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h); +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 */ static inline void rdmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h) { @@ -171,6 +174,14 @@ static inline void wrmsr_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h) { wrmsr(msr_no, l, h); } +static inline int rdmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 *l, u32 *h) +{ + return rdmsr_safe(msr_no, l, h); +} +static inline int wrmsr_safe_on_cpu(unsigned int cpu, u32 msr_no, u32 l, u32 h) +{ + return wrmsr_safe(msr_no, l, h); +} #endif /* CONFIG_SMP */ #endif /* __ASSEMBLY__ */ #endif /* X86_64_MSR_H */ |