[PATCH 0/7] KVM: x86: Attempt to wrangle PEBS/PMU into submission

[Sean Christopherson]

Attempt to fix the myriad PEBS/PMU issues in kvm/next.  Ideally this would
have been code review feedback, but I missed that boat.

Lightly tested, and I haven't thought through the host_initiated stuff too
deeply, but KUT and selftests are happy.

Sean Christopherson (7):
  KVM: x86: Give host userspace full control of MSR_IA32_MISC_ENABLES
  KVM: VMX:  Give host userspace full control of
    MSR_IA32_PERF_CAPABILITIES
  Revert "KVM: x86/pmu: Accept 0 for absent PMU MSRs when host-initiated
    if !enable_pmu"
  Revert "KVM: x86: always allow host-initiated writes to PMU MSRs"
  KVM: VMX: Use vcpu_get_perf_capabilities() to get guest-visible value
  KVM: x86: Ignore benign host accesses to "unsupported" PEBS and BTS
    MSRs
  KVM: x86: Ignore benign host writes to "unsupported" F15H_PERF_CTL
    MSRs

 arch/x86/kvm/pmu.c           | 12 ++------
 arch/x86/kvm/pmu.h           |  4 +--
 arch/x86/kvm/svm/pmu.c       | 13 ++-------
 arch/x86/kvm/vmx/pmu_intel.c | 43 +++++++++++-----------------
 arch/x86/kvm/x86.c           | 55 ++++++++++++++++++++++++------------
 5 files changed, 59 insertions(+), 68 deletions(-)


base-commit: 0cfd9c71371d4c7f96212d20833c36953eccdb91
-- 
2.36.1.476.g0c4daa206d-goog