On Thu, 2016-03-10 at 20:20 +0100, Borislav Petkov wrote: > On Thu, Mar 10, 2016 at 01:04:21PM -0700, Toshi Kani wrote: > > I will send a patch that sets PAT disabled when MTRR is disabled. This > > will solve the Paul's issue. His qemu32 model does not support PAT, > > either. > > It does, see my other mail. We need to figure out first why is > pat_init() being called as part of MTRR setup.
I am not familiar with PPRO_FEATURES, but shouldn't 'flags' in /proc/cpuinfo show "pat" when X86_FEATURE_PAT is set? pat_init() is being called as part of MTRR setup because PAT initialization requires the same CPU rendezvous operation implemented in the MTRR code. Thanks, -Toshi
