From: Greg KH <gregkh@linuxfoundation.org>
To: KY Srinivasan <kys@microsoft.com>
Cc: "Bjørn Mork" <bjorn@mork.no>,
"Paolo Bonzini" <pbonzini@redhat.com>,
"devel@linuxdriverproject.org" <devel@linuxdriverproject.org>,
"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] drivers: hv: use Linux version in guest ID
Date: Fri, 20 Jul 2012 09:09:53 -0700 [thread overview]
Message-ID: <20120720160953.GA5802@kroah.com> (raw)
In-Reply-To: <426367E2313C2449837CD2DE46E7EAF923547836@SN2PRD0310MB382.namprd03.prod.outlook.com>
On Fri, Jul 20, 2012 at 04:02:44PM +0000, KY Srinivasan wrote:
> > On Fri, Jul 20, 2012 at 10:03:08AM +0200, Bjørn Mork wrote:
> > > Use OS version number in the guest ID as recommended by Microsoft
> > >
> > > Signed-off-by: Bjørn Mork <bjorn@mork.no>
> > > ---
> > > So how about something like this? Yes, I know including
> > > linux/version.h often is unwanted, but the spec does
> > > recommend using the actual OS version in the guest ID
> > >
> > > Yes, this will be offensive again when Linux is at
> > > version 181.0, but we might have found a better solution by
> > > then :-)
> > >
> > >
> > > drivers/hv/hyperv_vmbus.h | 20 ++++++++++++++++----
> > > 1 file changed, 16 insertions(+), 4 deletions(-)
> > >
> > > diff --git a/drivers/hv/hyperv_vmbus.h b/drivers/hv/hyperv_vmbus.h
> > > index b9426a6..cc0c3f0 100644
> > > --- a/drivers/hv/hyperv_vmbus.h
> > > +++ b/drivers/hv/hyperv_vmbus.h
> > > @@ -29,6 +29,7 @@
> > > #include <asm/sync_bitops.h>
> > > #include <linux/atomic.h>
> > > #include <linux/hyperv.h>
> > > +#include <linux/version.h>
> > >
> > > /*
> > > * The below CPUID leaves are present if
> > VersionAndFeatures.HypervisorPresent
> > > @@ -410,10 +411,21 @@ enum {
> > >
> > > #define HV_PRESENT_BIT 0x80000000
> > >
> > > -#define HV_LINUX_GUEST_ID_LO 0x00000000
> > > -#define HV_LINUX_GUEST_ID_HI 0xB16B00B5
> > > -#define HV_LINUX_GUEST_ID (((u64)HV_LINUX_GUEST_ID_HI
> > << 32) | \
> > > - HV_LINUX_GUEST_ID_LO)
> > > +/* Linux vendor ID allocated by Microsoft */
> > > +#define HV_LINUX_GUEST_ID_VENDOR 0xB16B
> > > +
> > > +/* Creating a guest ID conforming to the encoding recommended by
> > > + * Microsoft, with variant and build fixed to 0
> >
> > We could use the kernel build number here as well, if we really wanted
> > it, right?
> >
> > Otherwise, I like this patch, KY, any objection to me taking it?
>
> Greg,
>
> If it is ok with you can we wait a couple of days. I am pushing to get information
> back from folks within MSFT. I am hoping we can fix this issue soon.
Ok, I'll hold on to it for a week or so.
thanks,
greg k-h
next prev parent reply other threads:[~2012-07-20 16:09 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-09-22 16:17 Hyper-V TODO file K. Y. Srinivasan
2011-09-22 16:05 ` Joe Perches
2011-09-22 17:04 ` Greg KH
2011-09-22 17:20 ` KY Srinivasan
2011-09-22 17:36 ` Greg KH
2011-09-22 18:22 ` KY Srinivasan
2011-10-04 13:59 ` KY Srinivasan
2011-10-04 17:04 ` Greg KH
2011-10-04 17:23 ` KY Srinivasan
2011-10-04 19:34 ` Move hyperv out of the drivers/staging/ directory Greg KH
2011-10-04 21:22 ` KY Srinivasan
2011-10-05 2:49 ` KY Srinivasan
2012-07-13 10:23 ` 0xB16B00B5? Really? (was Re: Move hyperv out of the drivers/staging/ directory) Paolo Bonzini
2012-07-13 13:13 ` KY Srinivasan
2012-07-13 13:15 ` Paolo Bonzini
2012-07-13 13:21 ` KY Srinivasan
2012-07-13 20:30 ` 2976579765? " Paul Bolle
2012-07-13 13:24 ` 0xB16B00B5? " Borislav Petkov
2012-07-13 19:00 ` Steven Rostedt
2012-07-14 10:50 ` Borislav Petkov
2012-07-13 15:27 ` [PATCH] hv: Change the guest ID value Matthew Garrett
2012-07-19 2:11 ` 0xB16B00B5? Really? (was Re: Move hyperv out of the drivers/staging/ directory) KY Srinivasan
2012-07-19 15:30 ` Borislav Petkov
2012-07-19 15:53 ` KY Srinivasan
2012-07-19 21:07 ` Greg KH (gregkh@linuxfoundation.org)
2012-07-19 21:22 ` KY Srinivasan
2012-07-19 22:01 ` Greg KH (gregkh@linuxfoundation.org)
2012-07-19 22:30 ` KY Srinivasan
2012-07-19 23:18 ` Anthony Liguori
2012-07-20 0:37 ` KY Srinivasan
2012-07-19 23:28 ` Greg KH (gregkh@linuxfoundation.org)
2012-07-20 0:41 ` KY Srinivasan
2012-07-20 7:59 ` Bjørn Mork
2012-07-20 8:03 ` [PATCH] drivers: hv: use Linux version in guest ID Bjørn Mork
2012-07-20 15:26 ` Greg KH
2012-07-20 16:02 ` KY Srinivasan
2012-07-20 16:09 ` Greg KH [this message]
2012-07-22 15:16 ` KY Srinivasan
2012-08-13 13:00 ` Bjørn Mork
2012-08-13 13:04 ` KY Srinivasan
2012-08-13 13:33 ` Bjørn Mork
2012-08-13 14:20 ` KY Srinivasan
2012-07-20 14:00 ` 0xB16B00B5? Really? (was Re: Move hyperv out of the drivers/staging/ directory) KY Srinivasan
2012-07-20 15:03 ` richard -rw- weinberger
2012-07-20 15:16 ` KY Srinivasan
2012-07-21 23:21 ` valdis.kletnieks
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