Re: [PATCH 1/4] KVM: x86: hyperv: Remove duplicate definitions of Reference TSC Page

From: Wei Liu
Date: Tue Apr 21 2020 - 07:18:58 EST


On Tue, Apr 21, 2020 at 01:16:42PM +0200, Paolo Bonzini wrote:
> On 21/04/20 11:29, Wei Liu wrote:
> > On Mon, Apr 20, 2020 at 10:38:35AM -0700, Michael Kelley wrote:
> >> The Hyper-V Reference TSC Page structure is defined twice. struct
> >> ms_hyperv_tsc_page has padding out to a full 4 Kbyte page size. But
> >> the padding is not needed because the declaration includes a union
> >> with HV_HYP_PAGE_SIZE. KVM uses the second definition, which is
> >> struct _HV_REFERENCE_TSC_PAGE, because it does not have the padding.
> >>
> >> Fix the duplication by removing the padding from ms_hyperv_tsc_page.
> >> Fix up the KVM code to use it. Remove the no longer used struct
> >> _HV_REFERENCE_TSC_PAGE.
> >>
> >> There is no functional change.
> >>
> >> Signed-off-by: Michael Kelley <mikelley@xxxxxxxxxxxxx>
> >> ---
> >> arch/x86/include/asm/hyperv-tlfs.h | 8 --------
> >> arch/x86/include/asm/kvm_host.h | 2 +-
> >> arch/x86/kvm/hyperv.c | 4 ++--
> >
> > Paolo, this patch touches KVM code. Let me know how you would like to
> > handle this.
>
> Just include it, I don't expect conflicts.
>
> Acked-by: Paolo Bonzini <pbonzini@xxxxxxxxxx>

Ack.