linux-kernel - RE: [PATCH v4 6/7] drivers:hv: Define the channel type for Hyper-V PCI Express pass-through

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Message-ID: <BY2PR0301MB16543334659C86300E12DD5AA02F0@BY2PR0301MB1654.namprd03.prod.outlook.com>
Date:	Fri, 30 Oct 2015 16:56:11 +0000
From:	KY Srinivasan <kys@...rosoft.com>
To:	Andy Shevchenko <andy.shevchenko@...il.com>,
	Jake Oshins <jakeo@...rosoft.com>
CC:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	"devel@...uxdriverproject.org" <devel@...uxdriverproject.org>,
	"olaf@...fle.de" <olaf@...fle.de>,
	"apw@...onical.com" <apw@...onical.com>,
	Vitaly Kuznetsov <vkuznets@...hat.com>,
	"tglx@...hat.com" <tglx@...hat.com>,
	Haiyang Zhang <haiyangz@...rosoft.com>,
	"marc.zyngier@....com" <marc.zyngier@....com>,
	Jiang Liu <jiang.liu@...ux.intel.com>,
	Bjorn Helgaas <bhelgaas@...gle.com>,
	"linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>
Subject: RE: [PATCH v4 6/7] drivers:hv: Define the channel type for Hyper-V
 PCI Express pass-through



> -----Original Message-----
> From: Andy Shevchenko [mailto:andy.shevchenko@...il.com]
> Sent: Friday, October 30, 2015 9:52 AM
> To: Jake Oshins <jakeo@...rosoft.com>
> Cc: Greg Kroah-Hartman <gregkh@...uxfoundation.org>; KY Srinivasan
> <kys@...rosoft.com>; linux-kernel@...r.kernel.org;
> devel@...uxdriverproject.org; olaf@...fle.de; apw@...onical.com; Vitaly
> Kuznetsov <vkuznets@...hat.com>; tglx@...hat.com; Haiyang Zhang
> <haiyangz@...rosoft.com>; marc.zyngier@....com; Jiang Liu
> <jiang.liu@...ux.intel.com>; Bjorn Helgaas <bhelgaas@...gle.com>; linux-
> pci@...r.kernel.org
> Subject: Re: [PATCH v4 6/7] drivers:hv: Define the channel type for Hyper-V
> PCI Express pass-through
> 
> On Fri, Oct 30, 2015 at 5:57 PM, Jake Oshins <jakeo@...rosoft.com> wrote:
> 
> >> > + * 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 \
> >> > +               }
> >>
> >> What about
> >> #include <linux/uuid.h>
> >>
> >> UUID_LE(...)
> >>
> >> And you may use uuid_le type instead of custom raw buffer.
> >>
> >
> > Thanks.  I was just following the form of all the others in this file.  I think
> that this was done to match up with the representation that's coming across
> the VM boundary from Windows.
> 
> Perhaps a separate patch to move to uuid.h then?

Yes; I am about to send out a patch to use the UUID_LE macro for all of the Hyper-V guids.

Regards,

K. Y
> 
> --
> With Best Regards,
> Andy Shevchenko