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RE: [PATCH 3/3] drivers:hv: Define the channel type for Hyper-V PCI Express pass-through

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> -----Original Message-----
> From: Greg KH [mailto:gregkh@linuxfoundation.org]
> Sent: Sunday, September 20, 2015 10:29 PM
> To: KY Srinivasan <kys@microsoft.com>
> Cc: linux-kernel@vger.kernel.org; devel@linuxdriverproject.org;
> olaf@aepfle.de; apw@canonical.com; vkuznets@redhat.com;
> jasowang@redhat.com; Jake Oshins <jakeo@microsoft.com>
> Subject: Re: [PATCH 3/3] drivers:hv: Define the channel type for Hyper-V PCI
> Express pass-through
> 
> On Tue, Sep 15, 2015 at 06:26:49PM -0700, K. Y. Srinivasan wrote:
> > From: Jake Oshins <jakeo@microsoft.com>
> >
> > This defines the channel type for PCI front-ends in Hyper-V VMs.
> >
> > Signed-off-by: Jake Oshins <jakeo@microsoft.com>
> > Signed-off-by: K. Y. Srinivasan <kys@microsoft.com>
> > ---
> >  include/linux/hyperv.h |   11 +++++++++++
> >  1 files changed, 11 insertions(+), 0 deletions(-)
> >
> > diff --git a/include/linux/hyperv.h b/include/linux/hyperv.h
> > index ea0a0e3..5587899 100644
> > --- a/include/linux/hyperv.h
> > +++ b/include/linux/hyperv.h
> > @@ -1140,6 +1140,17 @@ u64 hv_do_hypercall(u64 control, void *input,
> void *output);
> >  		}
> >
> >  /*
> > + * PCI Express Pass Through
> > + * {44C4F61D-4444-4400-9D52-802E27EDE19F}
> > + */
> > +
> > +#define HV_PCIE_GUID \
> > +	.guid = { \
> > +			0x1D, 0xF6, 0xC4, 0x44, 0x44, 0x44, 0x00, 0x44, \
> > +			0x9D, 0x52, 0x80, 0x2E, 0x27, 0xED, 0xE1, 0x9F \
> > +		}
> > +
> > +/*
> >   * Common header for Hyper-V ICs
> >   */
> 
> Yet you do nothing with this, so why add it to the code at this point in
> time?  I can't take pointless things like this...

Greg,

This is a valid GUID that the host can offer us today. The driver to handle this is currently under review (Jake has
posted the code). Traditionally, we have kept our header files in synch with the host functionality.

Regards,

K. Y
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[PATCH 1/3] drivers:hv: Export a function that maps Linux CPU num onto Hyper-V proc num "K. Y. Srinivasan" <kys@microsoft.com> - 2015-09-16 02:00 +0200
  [PATCH 2/3] drivers:hv: Export the API to invoke a hypercall on Hyper-V "K. Y. Srinivasan" <kys@microsoft.com> - 2015-09-16 02:00 +0200
    Re: [PATCH 2/3] drivers:hv: Export the API to invoke a hypercall on  Hyper-V Greg KH <gregkh@linuxfoundation.org> - 2015-09-21 07:30 +0200
      RE: [PATCH 2/3] drivers:hv: Export the API to invoke a hypercall on  Hyper-V KY Srinivasan <kys@microsoft.com> - 2015-09-21 18:30 +0200
        Re: [PATCH 2/3] drivers:hv: Export the API to invoke a hypercall on  Hyper-V Greg KH <gregkh@linuxfoundation.org> - 2015-09-21 18:50 +0200
          RE: [PATCH 2/3] drivers:hv: Export the API to invoke a hypercall on  Hyper-V KY Srinivasan <kys@microsoft.com> - 2015-09-21 19:40 +0200
            Re: [PATCH 2/3] drivers:hv: Export the API to invoke a hypercall on  Hyper-V Greg KH <gregkh@linuxfoundation.org> - 2015-09-21 22:50 +0200
              RE: [PATCH 2/3] drivers:hv: Export the API to invoke a hypercall on  Hyper-V KY Srinivasan <kys@microsoft.com> - 2015-09-22 04:40 +0200
  [PATCH 3/3] drivers:hv: Define the channel type for Hyper-V PCI Express pass-through "K. Y. Srinivasan" <kys@microsoft.com> - 2015-09-16 02:00 +0200
    Re: [PATCH 3/3] drivers:hv: Define the channel type for Hyper-V PCI  Express pass-through Greg KH <gregkh@linuxfoundation.org> - 2015-09-21 07:30 +0200
      RE: [PATCH 3/3] drivers:hv: Define the channel type for Hyper-V PCI  Express pass-through KY Srinivasan <kys@microsoft.com> - 2015-09-21 18:30 +0200
        Re: [PATCH 3/3] drivers:hv: Define the channel type for Hyper-V PCI  Express pass-through Greg KH <gregkh@linuxfoundation.org> - 2015-09-21 18:50 +0200

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