[kvm-unit-tests PATCH v3 0/3] Fix up test failures due to recent KVM changes

[Yang Weijiang <weijiang.yang@intel.com>]

Recently a few pmu KVM patches have been queued, and resulted into some test
failures based on the queue branch. Fix them in this series.

Patches were tested with below config:

kernel:
kvm/queue, commit 4284f0063c48

qemu:
master, commit 3a821c52e1a3

platform:
Skylake/Sapphire Rapids

v3:
1. Replaced msr test fixup with Paolo's patch at below link per
   Sean's comments, change RO bits to bit 11 and 12 due to Sean's
   commit 9fc222967a39 ("KVM: x86: Give host userspace full control of MSR_IA32_MISC_ENABLES")
   https://lore.kernel.org/all/20220520183207.7952-1-pbonzini@redhat.com/

2. Added helpers to check pmu verison and perf_global_ctrl MSR. [Sean]
3. Refactored pmu_lbr code with new helper.

Paolo Bonzini (1):
  x86: Don't overwrite bits 11 and 12 of MSR_IA32_MISC_ENABLE

Yang Weijiang (2):
  x86: Skip perf related tests when platform cannot support
  x86: Check platform vPMU capabilities before run lbr tests

 lib/x86/processor.h | 12 +++++++++++-
 x86/msr.c           |  8 +++++++-
 x86/pmu_lbr.c       | 32 +++++++++++++-------------------
 x86/vmx_tests.c     | 18 ++++++++++++++++++
 4 files changed, 49 insertions(+), 21 deletions(-)


base-commit: 610c15284a537484682adfb4b6d6313991ab954f
-- 
2.27.0