On Thu, Feb 15, 2024, Paul Durrant wrote: > From: Paul Durrant <pdurrant@xxxxxxxxxx> > > As noted in [1] the KVM_GUEST_USES_PFN usage flag is never set by any > callers of kvm_gpc_init(), which also makes the 'vcpu' argument redundant. The changelog should explicitly call out that not only is KVM_GUEST_USES_PFN unused, it's incomplete/broken (which is also partly why it's unused). Without that information, removing the support looks like a somewhat arbitrary decision, versus a deliberate change to make it easier to support the gpc code.