On 12/08/20 14:56, Xu, Like wrote: > > My proposal is to define: > the "hypervisor privilege levels" events in the KVM/x86 context as > all the host kernel events plus /dev/kvm user space events. What are "/dev/kvm user space events"? In any case, this patch should be included only in the series that adds exclude_hv support in arch/x86. Paolo > If we add ".exclude_hv = 1" in the pmc_reprogram_counter(), > do you see any side effect to cover the above usages? > > The fact that exclude_hv has never been used in x86 does help > the generic perf code to handle permission checks in a more concise way.
