perf/x86/intel/pt: add new capability for Intel PT
authorLuwei Kang <luwei.kang@intel.com>
Wed, 24 Oct 2018 08:05:09 +0000 (16:05 +0800)
committerPaolo Bonzini <pbonzini@redhat.com>
Fri, 21 Dec 2018 10:28:33 +0000 (11:28 +0100)
commite0018afec50a4846789d92a1b7cd6cd7f816c448
treedfb792719c9c40b038ee553e2592dc87b90a2108
parent69843a913fc86b3d0ef503d6cc15886ef8943626
perf/x86/intel/pt: add new capability for Intel PT

This adds support for "output to Trace Transport subsystem"
capability of Intel PT. It means that PT can output its
trace to an MMIO address range rather than system memory buffer.

Acked-by: Song Liu <songliubraving@fb.com>
Signed-off-by: Luwei Kang <luwei.kang@intel.com>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
arch/x86/events/intel/pt.c
arch/x86/include/asm/intel_pt.h