Starting with v5, the Intel PMU allows to indicate the available fixed function PMCs not only through CPUID.0AH.EDX[4:0] but also through a bit mask in CPUID.0AH.ECX. According to the SDM the OS can consider a fix function PMC i supported for: CPUID.0AH.ECX[i] || (CPUID.0AH.EDX[4:0] > i) This behavior is already supported by the Intel PMU driver. However, KVM support is missing. This patch series add the support by first refactoring the tracking of available fixed function PMCs in KVM from a number to a bitmap in the frist patch. The second patch populates the bitmap accoring to the rule given by the SDM mentioned above. Regards, Anselm Anselm Busse (2): KVM: vmx/pmu: Indicate available fixed function PMCs through a bitmap KVM: vmx/pmu: Add support for selected fixed vPMU enablement for PMU v5 arch/x86/include/asm/kvm_host.h | 2 +- arch/x86/kvm/pmu.h | 6 ++--- arch/x86/kvm/svm/pmu.c | 2 +- arch/x86/kvm/vmx/pmu_intel.c | 40 ++++++++++++++++++++------------- 4 files changed, 30 insertions(+), 20 deletions(-) base-commit: 0cfd8703e7da687924371e9bc77a025bdeba9637 -- 2.39.2 Amazon Development Center Germany GmbH Krausenstr. 38 10117 Berlin Geschaeftsfuehrung: Christian Schlaeger, Jonathan Weiss Eingetragen am Amtsgericht Charlottenburg unter HRB 149173 B Sitz: Berlin Ust-ID: DE 289 237 879
