On 5/15/2025 8:49 AM, Sean Christopherson wrote:
> On Mon, Mar 24, 2025, Mingwei Zhang wrote:
>> Dapeng Mi (18):
>> KVM: x86/pmu: Introduce enable_mediated_pmu global parameter
>> KVM: x86/pmu: Check PMU cpuid configuration from user space
>> KVM: x86: Rename vmx_vmentry/vmexit_ctrl() helpers
>> KVM: x86/pmu: Add perf_capabilities field in struct kvm_host_values{}
>> KVM: x86/pmu: Move PMU_CAP_{FW_WRITES,LBR_FMT} into msr-index.h header
>> KVM: VMX: Add macros to wrap around
>> {secondary,tertiary}_exec_controls_changebit()
>> KVM: x86/pmu: Check if mediated vPMU can intercept rdpmc
>> KVM: x86/pmu/vmx: Save/load guest IA32_PERF_GLOBAL_CTRL with
>> vm_exit/entry_ctrl
>> KVM: x86/pmu: Optimize intel/amd_pmu_refresh() helpers
>> KVM: x86/pmu: Setup PMU MSRs' interception mode
>> KVM: x86/pmu: Handle PMU MSRs interception and event filtering
>> KVM: x86/pmu: Switch host/guest PMU context at vm-exit/vm-entry
>> KVM: x86/pmu: Handle emulated instruction for mediated vPMU
>> KVM: nVMX: Add macros to simplify nested MSR interception setting
>> KVM: selftests: Add mediated vPMU supported for pmu tests
>> KVM: Selftests: Support mediated vPMU for vmx_pmu_caps_test
>> KVM: Selftests: Fix pmu_counters_test error for mediated vPMU
>> KVM: x86/pmu: Expose enable_mediated_pmu parameter to user space
>>
>> Kan Liang (8):
>> perf: Support get/put mediated PMU interfaces
>> perf: Skip pmu_ctx based on event_type
>> perf: Clean up perf ctx time
>> perf: Add a EVENT_GUEST flag
>> perf: Add generic exclude_guest support
>> perf: Add switch_guest_ctx() interface
>> perf/x86: Support switch_guest_ctx interface
>> perf/x86/intel: Support PERF_PMU_CAP_MEDIATED_VPMU
>>
>> Mingwei Zhang (5):
>> perf/x86: Forbid PMI handler when guest own PMU
>> perf/x86/core: Plumb mediated PMU capability from x86_pmu to
>> x86_pmu_cap
>> KVM: x86/pmu: Exclude PMU MSRs in vmx_get_passthrough_msr_slot()
>> KVM: x86/pmu: introduce eventsel_hw to prepare for pmu event filtering
>> KVM: nVMX: Add nested virtualization support for mediated PMU
>>
>> Sandipan Das (4):
>> perf/x86/core: Do not set bit width for unavailable counters
>> KVM: x86/pmu: Add AMD PMU registers to direct access list
>> KVM: x86/pmu/svm: Set GuestOnly bit and clear HostOnly bit when guest
>> write to event selectors
>> perf/x86/amd: Support PERF_PMU_CAP_MEDIATED_VPMU for AMD host
>>
>> Xiong Zhang (3):
>> x86/irq: Factor out common code for installing kvm irq handler
>> perf: core/x86: Register a new vector for KVM GUEST PMI
>> KVM: x86/pmu: Register KVM_GUEST_PMI_VECTOR handler
> I ran out of time today and didn't get emails send for all patches. I'm
> planning
> on getting that done tomorrow.
>
> I already have most of the proposed changes implemented:
>
> https://github.com/sean-jc/linux.git x86/mediated_pmu
>
> It compiles and doesn't explode, but it's not fully functional (PMU tests
> fail).
> I'll poke at it over the next few days, but if someone is itching to figure
> out
> what I broke, then by all means.
>
> Given that I've already made many modifications (I have a hard time reviewing
> a
> series this big without editing as I go), unless someone objects, I'll post v5
> (and v6+ as needed), though that'll like be days/weeks as I need to get it
> working,
> and want to do more passes over the code, shortlogs, and changelogs.
Sean, thank you very much for reviewing and refactoring the patchset. I
would look at the code and check it locally in next several days as well.
