Re: [kvm-unit-tests PATCH 0/4] x86/pmu: PEBS fixes and new testcases

["Mi, Dapeng" <dapeng1.mi@linux.intel.com>]

On 3/7/2024 7:01 AM, Sean Christopherson wrote:
> One bug fix where pmu_pebs attempts to enable PEBS for fixed counter on
> CPUs without Extended PEBS, and two new testcases to verify adaptive
> PEBS functionality.
>
> The new testcases are intended both to demonstrate that adaptive PEBS
> virtualization is currently broken, and to serve as a gatekeeper for
> re-enabling adapative PEBS in the future.
>
> https://lore.kernel.org/all/ZeepGjHCeSfadANM@google.com
>
> Sean Christopherson (4):
>    x86/pmu: Enable PEBS on fixed counters iff baseline PEBS is support
>    x86/pmu: Iterate over adaptive PEBS flag combinations
>    x86/pmu: Test adaptive PEBS without any adaptive counters
>    x86/pmu: Add a PEBS test to verify the host LBRs aren't leaked to the
>      guest
>
>   lib/x86/pmu.h  |   6 ++-
>   x86/pmu_pebs.c | 109 +++++++++++++++++++++++++++----------------------
>   2 files changed, 66 insertions(+), 49 deletions(-)

Tested-by: Dapeng Mi <dapeng1.mi@linux.intel.com>

>
> base-commit: 55dd01b4f066577b49f03fb7146723c4a65822c4