[PATCH RFC 0/2] ignore LBR-related MSRs

[Jan Dakinevich]

w2k16 essentials fails to boot if underlying hypervisor lacks of support for 
LBR MSRs. To workaround the issue, it suggessted to ignore these MSRs (but not 
all).

The information, which MSRs are supported for specific platform is taken from
perf, it is the subject of the first patch. The second patch adds ignoring for
these MSRs to pmu_intel code of KVM.

TODO: use MSR load/store areas to make full support of LBR debug.

Jan Dakinevich (2):
  perf/x86/intel: make reusable LBR initialization code
  KVM: x86/vPMU: ignore access to LBR-related MSRs

 arch/x86/events/core.c            |   8 +-
 arch/x86/events/intel/core.c      |  59 +++------
 arch/x86/events/intel/lbr.c       | 272 +++++++++++++++++++++++++-------------
 arch/x86/events/perf_event.h      |  27 +---
 arch/x86/include/asm/kvm_host.h   |   2 +
 arch/x86/include/asm/perf_event.h |  11 ++
 arch/x86/kvm/pmu_intel.c          |  33 +++++
 7 files changed, 250 insertions(+), 162 deletions(-)

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2.1.4