> > -static inline int __flip_bit(u32 msr, u8 bit, bool set)
> > +int msr_flip_bit(u32 msr, u8 bit, bool set)
> > {
> > struct msr m, m1;
> > int err = -EINVAL;
> > @@ -85,6 +85,7 @@ static inline int __flip_bit(u32 msr, u8 bit, bool
> > set)
> >
> > return 1;
> > }
> > +EXPORT_SYMB
On Tue, 28 Mar 2017, kan.li...@intel.com wrote:
> From: Kan Liang
>
> There is no exported kernel interfaces which can flip a MSR bit. It has
> to do read-modify-write operation on the MSR through rd/wrmsr*
> interfaces. But the method is not atomic.
>
> There is already __flip_bit support. Just
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