On 2/26/2020 1:25 PM, Sean Christopherson wrote: > Arguably, setup_pku() should be a little less heavy handed in updating > cpufeatures for X86_FEATURE_OSPKE, but init_ia32_feat_ctl() should also be > more robust. > Right. >> But it looks like rdmsr is global and not tied to a given CPU anyways? > > For better or worse, the MSR is thread scoped. > Ahh. Definitely not obvious at a glance. > I've reproduced the bug, should have a fix ready by EOD. > Nice, glad to hear it. Thanks, Jake
