Re: [PATCH] powerpc: Clear user CPU feature bits if TM is disabled at runtime

On Mon, Apr 04, 2016 at 09:11:12PM +1000, Anton Blanchard wrote: > In check_cpu_pa_features() we check a number of bits in the > ibm,pa-features array and set and clear CPU features based on what > we find. One of these bits is CPU_FTR_TM, the transactional memory > feature bit. > > If this does d

[PATCH] powerpc: Clear user CPU feature bits if TM is disabled at runtime

In check_cpu_pa_features() we check a number of bits in the ibm,pa-features array and set and clear CPU features based on what we find. One of these bits is CPU_FTR_TM, the transactional memory feature bit. If this does disable TM at runtime, then we need to tell userspace about it by clearing the