Re: [PATCH 2/2] KVM: use KVM_{GET|SET}_SREGS2 when supported by kvm.

[Maxim Levitsky]

On Thu, 2021-04-01 at 18:09 +0200, Paolo Bonzini wrote:
> On 01/04/21 16:45, Maxim Levitsky wrote:
> > +
> > +    for (i = 0; i < 4; i++) {
> > +        sregs.pdptrs[i] = env->pdptrs[i];
> > +    }
> > +
> > +    sregs.flags = 0;
> > +    sregs.padding = 0;
> > +
> > +    return kvm_vcpu_ioctl(CPU(cpu), KVM_SET_SREGS2, &sregs);
> > +}
> > +
> 
> This breaks when migrating from old to new kernel, because in that case 
> the PDPTRs are not initialized.

True, I haven't thought about it!
I'll fix this in the next version.

Best regards,
        Maxim Levitsky


> 
> Paolo
>