On Thu, 2013-05-16 at 15:37 +0200, Paolo Bonzini wrote:
> Il 16/05/2013 11:28, Vadim Rozenfeld ha scritto:
> >>>>> > > > > + case HV_X64_MSR_REFERENCE_TSC: {
> >>>>> > > > > + u64 gfn;
> >>>>> > > > > + unsigned long addr;
> >>>>> > > > > + u32 tsc_ref;
> >>>>> > > > > + gfn = data >>
> >>>>> > > > > HV_X64_MSR_HYPERCALL_PAGE_ADDRESS_SHIFT;
> >>>> > > > Shouldn't you check HV_X64_MSR_TSC_REFERENCE_ENABLE here?
> >>> > >
> >>> > > Yes, I have this check added in the second patch.
> >>> > >
> >> > Move it here please.
> > OK, will do it.
> >> >
> >>>> > > >
> >>>>> > > > > + addr = gfn_to_hva(kvm, gfn);
> >>>>> > > > > + if (kvm_is_error_hva(addr))
> >>>>> > > > > + return 1;
> >>>>> > > > > + tsc_ref = 0;
>
> This should write 0xFFFFFFFF.
This should write 0
Vadim.
>
> Paolo
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