> On Tue, Jul 08, 2014 at 09:49:40AM -0700, [email protected] wrote: > > +/* > > + * Under certain circumstances, access certain MSR may cause #GP. > > + * The function tests if the input MSR can be safely accessed. > > + */ > > +static inline bool check_msr(unsigned long msr) { > > + u64 value; > > + > > + if (rdmsrl_safe(msr, &value) < 0) > > + return false; > > + if (wrmsrl_safe(msr, value) < 0) > > + return false; > > + return true; > > +} > > What does this thing return after patch 2? does the write still fault or will > KVM silently take writes too?
If applying patch 2, the function will return true. The KVM just simply ignore the reads/writes. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
