On Thu, Aug 6, 2015 at 8:21 AM, Peter Zijlstra <peterz@xxxxxxxxxxxxx> wrote: > On Tue, Aug 04, 2015 at 08:39:27PM +0000, Liang, Kan wrote: > - default: > - err = -ENOTSUPP; > + if (!msr[i].test() || rdmsrl_safe(msr[i].msr, &val)) > + msr[i].attr = NULL; IIRC rdmsrl_safe literally never fails under QEMU TCG, and I'm not entirely sure what happens under KVM if emulation kicks in. It might pay to keep the model check for the non-architectural stuff, or at least check for a nonzero return value. --Andy -- To unsubscribe from this list: send the line "unsubscribe linux-tip-commits" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
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