On Wed, 6 Dec 2017 14:43:01 +0300 Jan Dakinevich <jan.dakinev...@virtuozzo.com> wrote:
> 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(-) > ping Please, tell me whether these patches are applicable (as KVM workaround) or it is assumed they should be reworked following to recommendation by Andi Kleen? -- Best regards Jan Dakinevich
