Jim Mattson <jmattson@xxxxxxxxxx> writes: > On Tue, Jul 28, 2020 at 5:41 AM Alexander Graf <graf@xxxxxxxxxx> wrote: >> ... >> While it does feel a bit overengineered, it would solve the problem that >> we're turning in-KVM handled MSRs into an ABI. > > It seems unlikely that userspace is going to know what to do with a > large number of MSRs. I suspect that a small enumerated list will > suffice. The list can also be 'wildcarded', i.e. { u32 index; u32 mask; ... } to make it really short. -- Vitaly