Hi Paolo,
On 28/7/2021 11:45 pm, Peter Zijlstra wrote:
Like Xu (17):
perf/core: Use static_call to optimize perf_guest_info_callbacks
perf/x86/intel: Add EPT-Friendly PEBS for Ice Lake Server
perf/x86/intel: Handle guest PEBS overflow PMI for KVM guest
perf/x86/core: Pass "struct kvm_pmu *" to determine the guest values
KVM: x86/pmu: Set MSR_IA32_MISC_ENABLE_EMON bit when vPMU is enabled
KVM: x86/pmu: Introduce the ctrl_mask value for fixed counter
KVM: x86/pmu: Add IA32_PEBS_ENABLE MSR emulation for extended PEBS
KVM: x86/pmu: Reprogram PEBS event to emulate guest PEBS counter
KVM: x86/pmu: Adjust precise_ip to emulate Ice Lake guest PDIR counter
KVM: x86/pmu: Add IA32_DS_AREA MSR emulation to support guest DS
KVM: x86/pmu: Add PEBS_DATA_CFG MSR emulation to support adaptive PEBS
KVM: x86: Set PEBS_UNAVAIL in IA32_MISC_ENABLE when PEBS is enabled
KVM: x86/pmu: Move pmc_speculative_in_use() to arch/x86/kvm/pmu.h
KVM: x86/pmu: Disable guest PEBS temporarily in two rare situations
KVM: x86/pmu: Add kvm_pmu_cap to optimize perf_get_x86_pmu_capability
KVM: x86/cpuid: Refactor host/guest CPU model consistency check
KVM: x86/pmu: Expose CPUIDs feature bits PDCM, DS, DTES64
Peter Zijlstra (Intel) (1):
x86/perf/core: Add pebs_capable to store valid PEBS_COUNTER_MASK value
Looks good:
Acked-by: Peter Zijlstra (Intel)<peterz@xxxxxxxxxxxxx>
How do we want to route this, all through the KVM tree?
Do you have any comments for the latest version[1]
or do we have a chance to get it queued for mainline ?
I would really like to ease the burden of Lingshan on
maintaining this feature and on the basis of this work,
the guest BTS (Branch Tracking Store) is also ready to go.
Thanks,
Like Xu
[1] https://lore.kernel.org/kvm/20210806133802.3528-1-lingshan.zhu@xxxxxxxxx/
