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From: Roman Kagan <rkagan@virtuozzo.com>
To: KY Srinivasan <kys@microsoft.com>
Cc: "Paolo Bonzini" <pbonzini@redhat.com>,
	"Radim Krčmář" <rkrcmar@redhat.com>,
	"Vitaly Kuznetsov" <vkuznets@redhat.com>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Ingo Molnar" <mingo@redhat.com>,
	"H. Peter Anvin" <hpa@zytor.com>,
	"x86@kernel.org" <x86@kernel.org>,
	"Haiyang Zhang" <haiyangz@microsoft.com>,
	"kvm@vger.kernel.org" <kvm@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"devel@linuxdriverproject.org" <devel@linuxdriverproject.org>,
	"Denis V . Lunev" <den@openvz.org>
Subject: Re: [PATCH 00/15] hyperv: more stuff to uapi + cleanup
Date: Wed, 28 Dec 2016 19:57:00 +0300	[thread overview]
Message-ID: <20161228165700.GA14702@rkaganb.sw.ru> (raw)
In-Reply-To: <DM5PR03MB24900C255854B0BB9288DC6AA0930@DM5PR03MB2490.namprd03.prod.outlook.com>

[ Sorry for such a slow reply; flu and office relocation knocked me out
for a while ]

On Wed, Dec 21, 2016 at 06:00:17PM +0000, KY Srinivasan wrote:
> > -----Original Message-----
> > From: Roman Kagan [mailto:rkagan@virtuozzo.com]
> > Sent: Tuesday, December 20, 2016 7:56 AM
> > Subject: [PATCH 00/15] hyperv: more stuff to uapi + cleanup
> > 
> > Expose more Hyper-V-related definitions in the uapi header for
> > consumption by userspace.
> > 
> > While doing so, get rid of a number of duplications between the KVM and
> > the guest driver code.  Also a few other cleanups are made which are not
> > strictly necessary for the main purpose of the series but appear
> > reasonable to do at the same time.
> > 
> > The most controversial is the last patch which modifies the stuff
> > already published in the uapi header, in the hope that no userspace
> > applications have started relying on it; I'm ok dropping it if this is
> > unacceptable.
> 
> First, let me thank you. Broadly, this patch-set can be broken into
> 1. Moving existing definitions around - (to make it possible to share these
> between Hyper-V guest drivers and KVM)
> 2. Cleanup of the existing code in the VMBUS driver (under drivers/hv).

Right.  Another significant part of the series is, where two sets of
definitions exist for the same entity, consolidate on the one that looks
more Linux-style, usually the one in the (currently) uapi header.

> To the extent possible, I want to take all non-KVM code through Greg's tree.
> We can then modify the KVM code to use these common definitions.

Well, this patchset touches almost no KVM code, so we're fine here I
think.

> Currently, I too am working on restructuring VMBUS driver code to
> fully isolate all x86 dependencies.  I can work with you on
> integration as I too am moving things around.

Great!  Do you want me to rebase on some your public tree?  (Once I
split the patches as you requested, of course)?

Thanks,
Roman.

  reply	other threads:[~2016-12-28 20:33 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-20 15:55 [PATCH 00/15] hyperv: more stuff to uapi + cleanup Roman Kagan
2016-12-20 15:55 ` [PATCH 01/15] hyperv: consolidate TSC ref page definitions Roman Kagan
2016-12-20 20:57   ` KY Srinivasan
2016-12-21  6:25     ` Roman Kagan
2016-12-20 15:55 ` [PATCH 02/15] hyperv: uapi-fy synic event flags definitions Roman Kagan
2016-12-20 17:24   ` Stephen Hemminger
2016-12-21  6:33     ` Roman Kagan
2016-12-21 10:58   ` kbuild test robot
2016-12-21 18:58   ` KY Srinivasan
2016-12-20 15:55 ` [PATCH 03/15] hyperv: use standard bitops Roman Kagan
2016-12-21 12:00   ` Olaf Hering
2016-12-21 13:23     ` Roman Kagan
2016-12-22 12:33       ` Paolo Bonzini
2016-12-21 19:08   ` KY Srinivasan
2016-12-20 15:55 ` [PATCH 04/15] hyperv: define VMBus message type Roman Kagan
2016-12-20 15:55 ` [PATCH 05/15] hyperv: GFP_ATOMIC -> GFP_KERNEL Roman Kagan
2016-12-20 15:55 ` [PATCH 06/15] hyperv: avoid unnecessary vmalloc Roman Kagan
2016-12-21 19:19   ` KY Srinivasan
2016-12-20 15:55 ` [PATCH 07/15] hyperv: dedup cpuid definitions Roman Kagan
2016-12-20 15:55 ` [PATCH 08/15] hyperv: dedup crash msr related definitions Roman Kagan
2016-12-20 15:55 ` [PATCH 09/15] hyperv: unify Hyper-V msr definitions Roman Kagan
2016-12-20 15:55 ` [PATCH 10/15] hyperv: uapi-fy PostMessage and SignalEvent hypercall structures Roman Kagan
2016-12-21 19:27   ` KY Srinivasan
2016-12-20 15:55 ` [PATCH 11/15] hyperv: uapi-fy monitored notification structures Roman Kagan
2016-12-20 15:55 ` [PATCH 12/15] hyperv: move VMBus connection ids to uapi Roman Kagan
2016-12-20 17:25   ` Stephen Hemminger
2016-12-21  6:29     ` Roman Kagan
2016-12-21 12:18       ` Christoph Hellwig
2016-12-21 12:59         ` Roman Kagan
2016-12-21 14:26           ` Christoph Hellwig
2016-12-21 14:39             ` Roman Kagan
2016-12-21 15:39             ` Paolo Bonzini
2016-12-21 15:43               ` Christoph Hellwig
2016-12-21 17:25                 ` Paolo Bonzini
2016-12-21 17:50                 ` Stephen Hemminger
2016-12-21 17:53                   ` Paolo Bonzini
2016-12-21 17:58                   ` Christoph Hellwig
2016-12-21 18:02                     ` Stephen Hemminger
2016-12-21 19:54                       ` KY Srinivasan
2016-12-28 17:09                         ` Roman Kagan
2016-12-29 18:29                           ` Stephen Hemminger
2017-01-02  8:19                           ` Paolo Bonzini
2017-01-09  8:32                             ` Roman Kagan
2017-01-09  8:40                               ` hpa
2017-01-09  8:58                                 ` Roman Kagan
2017-01-09  9:02                                 ` Paolo Bonzini
2017-01-02 19:39                           ` Stephen Hemminger
2017-01-03  9:32                             ` Paolo Bonzini
2016-12-20 15:56 ` [PATCH 13/15] hyperv: move function close to its only callsite Roman Kagan
2016-12-20 15:56 ` [PATCH 14/15] hyperv_vmbus: drop unused definitions Roman Kagan
2016-12-20 15:56 ` [PATCH 15/15] hyperv: redefine hv_message without bitfields Roman Kagan
2016-12-21 18:00 ` [PATCH 00/15] hyperv: more stuff to uapi + cleanup KY Srinivasan
2016-12-28 16:57   ` Roman Kagan [this message]
2016-12-30 19:45     ` KY Srinivasan

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