On Wed, 12 Oct 2016, Grzegorz Andrejczuk wrote: > + /* > + * Setting ring 3 MONITOR/MWAIT for all threads > + * when CPU is Xeon Phi Family x200 > + * This can be disabled with phir3mwait=disable cmdline switch. > + * We preserve the reserved values and set only 2nd bit. > + * Ref: > + * > https://software.intel.com/en-us/blogs/2016/10/06/intel-xeon-phi-product-family-x200-knl-user-mode-ring-3-monitor-and-mwait
Please don't put links like this into comments. They are stale before this hits Linus tree. Thanks, tglx