On Sun, 28 Jun 2015, Prarit Bhargava wrote: > Is it easier to blacklist MSRs we don't want generally exposed, or only expose > the ones that we think are safe? That's sort of a devil's advocate sort of > question ;) and I'm wondering what the shorter list is.
The only way to make MSR access safe is to allow it only by whitelisting. The x86 platform restricts all MSR access to ring 0 for a damn good reason. Also, such a whitelist would most likely need to be vendor and model-aware, and to differentiate "allow reads" from "allow writes"... -- "One disk to rule them all, One disk to find them. One disk to bring them all and in the darkness grind them. In the Land of Redmond where the shadows lie." -- The Silicon Valley Tarot Henrique Holschuh -- 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/
