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From: KY Srinivasan <kys@microsoft.com>
To: "Roman Kagan" <rkagan@virtuozzo.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Radim Krčmář" <rkrcmar@redhat.com>,
	"Vitaly Kuznetsov" <vkuznets@redhat.com>
Cc: 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, 21 Dec 2016 18:00:17 +0000	[thread overview]
Message-ID: <DM5PR03MB24900C255854B0BB9288DC6AA0930@DM5PR03MB2490.namprd03.prod.outlook.com> (raw)
In-Reply-To: <20161220155602.6298-1-rkagan@virtuozzo.com>



> -----Original Message-----
> From: Roman Kagan [mailto:rkagan@virtuozzo.com]
> Sent: Tuesday, December 20, 2016 7:56 AM
> To: Paolo Bonzini <pbonzini@redhat.com>; Radim Krčmář
> <rkrcmar@redhat.com>; KY Srinivasan <kys@microsoft.com>; Vitaly
> Kuznetsov <vkuznets@redhat.com>
> Cc: Thomas Gleixner <tglx@linutronix.de>; Ingo Molnar
> <mingo@redhat.com>; H. Peter Anvin <hpa@zytor.com>; x86@kernel.org;
> Haiyang Zhang <haiyangz@microsoft.com>; kvm@vger.kernel.org; linux-
> kernel@vger.kernel.org; devel@linuxdriverproject.org; Denis V . Lunev
> <den@openvz.org>; Roman Kagan <rkagan@virtuozzo.com>
> 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.

Roman,

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).

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. 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.

Regards,

K. Y 

> 
> Roman Kagan (15):
>   hyperv: consolidate TSC ref page definitions
>   hyperv: uapi-fy synic event flags definitions
>   hyperv: use standard bitops
>   hyperv: define VMBus message type
>   hyperv: GFP_ATOMIC -> GFP_KERNEL
>   hyperv: avoid unnecessary vmalloc
>   hyperv: dedup cpuid definitions
>   hyperv: dedup crash msr related definitions
>   hyperv: unify Hyper-V msr definitions
>   hyperv: uapi-fy PostMessage and SignalEvent hypercall structures
>   hyperv: uapi-fy monitored notification structures
>   hyperv: move VMBus connection ids to uapi
>   hyperv: move function close to its only callsite
>   hyperv_vmbus: drop unused definitions
>   hyperv: redefine hv_message without bitfields
> 
>  arch/x86/include/asm/kvm_host.h    |   2 +-
>  arch/x86/include/uapi/asm/hyperv.h | 101 +++++++---
>  drivers/hv/hyperv_vmbus.h          | 399 +------------------------------------
>  include/linux/hyperv.h             |  24 +--
>  arch/x86/kvm/hyperv.c              |  14 +-
>  drivers/hv/channel.c               |   8 +-
>  drivers/hv/channel_mgmt.c          |  30 +--
>  drivers/hv/connection.c            |  65 ++----
>  drivers/hv/hv.c                    | 300 +++++++++++++---------------
>  drivers/hv/vmbus_drv.c             |  67 +++----
>  10 files changed, 288 insertions(+), 722 deletions(-)
> 
> --
> 2.9.3

  parent reply	other threads:[~2016-12-21 18:00 UTC|newest]

Thread overview: 54+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-20 15:55 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 ` KY Srinivasan [this message]
2016-12-28 16:57   ` [PATCH 00/15] hyperv: more stuff to uapi + cleanup Roman Kagan
2016-12-30 19:45     ` KY Srinivasan

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