Re: perf, x86: only do lbr init if bts is available

Peter Zijlstra
2012-05-24T17:21:18Z

On Thu, 2012-05-24 at 19:18 +0200, Peter Zijlstra wrote:

> Right, as Stephane already noted, LBR is not an CPUID enumerated
> feature, hence the only thing you can do is go by model. So if you set
> qemu -cpu host but fail to implement all the architectural MSRs that go
> with that model you get to keep the pieces.

s/architectural//

They're called Model-Specific-Registers for a reason ;-)