On Fri, Sep 29, 2023 at 08:50:07PM +0530, Ravi Bangoria wrote: > On 29-Sep-23 5:23 PM, Peter Zijlstra wrote: > > I don't think you need to go that far, host can use PMU just fine as > > long as it doesn't overlap with a vCPU. Basically, if you force > > perf_attr::exclude_guest on everything your vCPU can haz the full thing. ^ this.. > How about keying off based on PMU specific KVM module parameter? Something > like what Manali has proposed for AMD VIBS? Please see solution 1.1: > > https://lore.kernel.org/r/3a6c693e-1ef4-6542-bc90-d4468773b97d@xxxxxxx So I hadn't read that, but isn't that more or less what I proposed above?
