On Fri, Feb 07, 2025, David Woodhouse wrote: > From: David Woodhouse <dwmw@xxxxxxxxxxxx> > > At the time kvm_xen_init() is called, hyperv_enabled() doesn't yet work, so > the correct MSR index to use for the hypercall page isn't known. > > Rather than setting it to the default and then shifting it later for the > Hyper-V case with a confusing second call to kvm_init_xen(), just do it > once in kvm_xen_init_vcpu(). Is it possible the funky double-init is deliberate, to ensure that Xen is configured in KVM during VM setup? I looked through KVM and didn't see any obvious dependencies, but that doesn't mean a whole lot.
