• Thomas Gleixner's avatar
    x86/intel_rdt: Disable PMU access · 4a7a54a5
    Thomas Gleixner authored
    Peter is objecting to the direct PMU access in RDT. Right now the PMU usage
    is broken anyway as it is not coordinated with perf.
    
    Until this discussion settled, disable the PMU mechanics by simply
    rejecting the type '2' measurement in the resctrl file.
    Reported-by: default avatarPeter Zijlstra <peterz@infradead.org>
    Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
    Cc: Reinette Chatre <reinette.chatre@intel.com>
    Cc: Dave Hansen <dave.hansen@intel.com>
    Cc: fenghua.yu@intel.com
    Cc: tony.luck@intel.com
    Cc: vikas.shivappa@linux.intel.com
    CC: gavin.hindman@intel.com
    Cc: jithu.joseph@intel.com
    Cc: hpa@zytor.com
    4a7a54a5
intel_rdt_pseudo_lock.c 42.6 KB