On Fri, Mar 06, 2015 at 10:27:38AM +0100, Borislav Petkov wrote: > On Fri, Mar 06, 2015 at 09:09:30AM +0000, Naoya Horiguchi wrote: > > I'm not sure why that works, could you elabroate it? > > Because the _safe() variants are only for handling reads to possibly > non-existent MSRs. The _STATUS MSRs which you're accessing are > guaranteed to be present, otherwise __mcheck_cpu_cap_init() would've > disabled MCA on the first kernel, thus the mca_cfg.disabled check.
Great, thanks. > We can always switch to the _safe() variants later if really needed - I > just don't see the need for them right now. OK, I'll do with rdmsrl(). Thanks, Naoya Horiguchi-- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
