Re: [Xen-devel] [PATCH 2/6] xen-netfront: copy response out of shared buffer before accessing it

On 05/01/2018 12:01 AM, Marek Marczykowski-Górecki wrote: Make local copy of the response, otherwise backend might modify it while frontend is already processing it - leading to time of check / time of use issue. This is complementary to XSA155. Cc: sta...@vger.kernel.org Signed-off-by: Marek

[Xen-devel] [PATCH v2] xen/kbdif: Add features to control keyboard and pointer

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> It is now not fully possible to control if and which virtual devices are created by the frontend, e.g. keyboard and pointer devices are always created and multi-touch device is created if the backend advertises multi-touch s

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

On 04/25/2018 08:16 PM, Dongwon Kim wrote: On Wed, Apr 25, 2018 at 08:34:55AM +0200, Daniel Vetter wrote: On Wed, Apr 25, 2018 at 09:07:07AM +0300, Oleksandr Andrushchenko wrote: On 04/24/2018 11:35 PM, Dongwon Kim wrote: Had a meeting with Daniel and talked about bringing out generic part

Re: [Xen-devel] [PATCH] xen/kbdif: Add frontend's virtual device options

On 04/27/2018 12:14 AM, Dmitry Torokhov wrote: Hi Oleksandr, On Tue, Apr 24, 2018 at 10:31:38AM +0300, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> It is now not possible to control if and which virtual devices are created by the fr

Re: [Xen-devel] [PATCH] Input: xen-kbdfront - allow better run-time configuration

On 04/26/2018 10:16 PM, Dmitry Torokhov wrote: On Tue, Apr 24, 2018 at 08:55:19AM +0300, Oleksandr Andrushchenko wrote: On 04/23/2018 09:53 PM, Dmitry Torokhov wrote: On Thu, Apr 19, 2018 at 02:44:19PM +0300, Oleksandr Andrushchenko wrote: On 04/19/2018 02:25 PM, Juergen Gross wrote: On 18

Re: [Xen-devel] Should PV frontend drivers trust the backends?

On 04/26/2018 11:16 AM, Paul Durrant wrote: -Original Message- From: Oleksandr Andrushchenko [mailto:andr2...@gmail.com] Sent: 26 April 2018 07:00 To: Paul Durrant <paul.durr...@citrix.com>; 'Juergen Gross' <jgr...@suse.com>; xen-devel <xen-devel@lists.xenproject.org>

Re: [Xen-devel] Should PV frontend drivers trust the backends?

On 04/25/2018 04:47 PM, Paul Durrant wrote: -Original Message- From: Xen-devel [mailto:xen-devel-boun...@lists.xenproject.org] On Behalf Of Juergen Gross Sent: 25 April 2018 13:43 To: xen-devel Subject: [Xen-devel] Should PV frontend drivers trust the

Re: [Xen-devel] [PATCH v2 3/5] ALSA: xen-front: Implement Xen event channel handling

On 04/25/2018 12:02 PM, Takashi Iwai wrote: On Wed, 25 Apr 2018 10:26:34 +0200, Oleksandr Andrushchenko wrote: On 04/24/2018 07:23 PM, Oleksandr Andrushchenko wrote: On 04/24/2018 06:02 PM, Takashi Iwai wrote: On Tue, 24 Apr 2018 16:58:43 +0200, Oleksandr Andrushchenko wrote: On 04/24/2018

Re: [Xen-devel] [PATCH v2 3/5] ALSA: xen-front: Implement Xen event channel handling

On 04/24/2018 07:23 PM, Oleksandr Andrushchenko wrote: On 04/24/2018 06:02 PM, Takashi Iwai wrote: On Tue, 24 Apr 2018 16:58:43 +0200, Oleksandr Andrushchenko wrote: On 04/24/2018 05:35 PM, Takashi Iwai wrote: On Tue, 24 Apr 2018 16:29:15 +0200, Oleksandr Andrushchenko wrote: On 04/24/2018

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

+0300, Oleksandr Andrushchenko wrote: On 04/24/2018 02:54 PM, Daniel Vetter wrote: On Mon, Apr 23, 2018 at 03:10:35PM +0300, Oleksandr Andrushchenko wrote: On 04/23/2018 02:52 PM, Wei Liu wrote: On Fri, Apr 20, 2018 at 02:25:20PM +0300, Oleksandr Andrushchenko wrote: the gntdev. I

Re: [Xen-devel] [PATCH v2 3/5] ALSA: xen-front: Implement Xen event channel handling

On 04/24/2018 06:02 PM, Takashi Iwai wrote: On Tue, 24 Apr 2018 16:58:43 +0200, Oleksandr Andrushchenko wrote: On 04/24/2018 05:35 PM, Takashi Iwai wrote: On Tue, 24 Apr 2018 16:29:15 +0200, Oleksandr Andrushchenko wrote: On 04/24/2018 05:20 PM, Takashi Iwai wrote: On Mon, 16 Apr 2018 08:24

Re: [Xen-devel] [PATCH v2 3/5] ALSA: xen-front: Implement Xen event channel handling

On 04/24/2018 05:35 PM, Takashi Iwai wrote: On Tue, 24 Apr 2018 16:29:15 +0200, Oleksandr Andrushchenko wrote: On 04/24/2018 05:20 PM, Takashi Iwai wrote: On Mon, 16 Apr 2018 08:24:51 +0200, Oleksandr Andrushchenko wrote: +static irqreturn_t evtchnl_interrupt_req(int irq, void *dev_id

Re: [Xen-devel] [PATCH v2 3/5] ALSA: xen-front: Implement Xen event channel handling

On 04/24/2018 05:20 PM, Takashi Iwai wrote: On Mon, 16 Apr 2018 08:24:51 +0200, Oleksandr Andrushchenko wrote: +static irqreturn_t evtchnl_interrupt_req(int irq, void *dev_id) +{ + struct xen_snd_front_evtchnl *channel = dev_id; + struct xen_snd_front_info *front_info = channel

Re: [Xen-devel] [PATCH v2 1/5] ALSA: xen-front: Introduce Xen para-virtualized sound frontend driver

On 04/24/2018 04:55 PM, Takashi Iwai wrote: On Mon, 16 Apr 2018 08:24:49 +0200, Oleksandr Andrushchenko wrote: --- /dev/null +++ b/sound/xen/Kconfig @@ -0,0 +1,10 @@ +# ALSA Xen drivers + +config SND_XEN_FRONTEND + tristate "Xen para-virtualized sound frontend driver" +

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

On 04/24/2018 02:54 PM, Daniel Vetter wrote: On Mon, Apr 23, 2018 at 03:10:35PM +0300, Oleksandr Andrushchenko wrote: On 04/23/2018 02:52 PM, Wei Liu wrote: On Fri, Apr 20, 2018 at 02:25:20PM +0300, Oleksandr Andrushchenko wrote: the gntdev. I think this is generic enough that it could

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

On 04/24/2018 01:01 PM, Wei Liu wrote: On Tue, Apr 24, 2018 at 11:08:41AM +0200, Juergen Gross wrote: On 24/04/18 11:03, Oleksandr Andrushchenko wrote: On 04/24/2018 11:40 AM, Juergen Gross wrote: On 24/04/18 10:07, Oleksandr Andrushchenko wrote: On 04/24/2018 10:51 AM, Juergen Gross wrote

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

On 04/24/2018 12:08 PM, Juergen Gross wrote: On 24/04/18 11:03, Oleksandr Andrushchenko wrote: On 04/24/2018 11:40 AM, Juergen Gross wrote: On 24/04/18 10:07, Oleksandr Andrushchenko wrote: On 04/24/2018 10:51 AM, Juergen Gross wrote: On 24/04/18 07:43, Oleksandr Andrushchenko wrote: On 04

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

On 04/24/2018 11:40 AM, Juergen Gross wrote: On 24/04/18 10:07, Oleksandr Andrushchenko wrote: On 04/24/2018 10:51 AM, Juergen Gross wrote: On 24/04/18 07:43, Oleksandr Andrushchenko wrote: On 04/24/2018 01:41 AM, Boris Ostrovsky wrote: On 04/23/2018 08:10 AM, Oleksandr Andrushchenko wrote

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

On 04/24/2018 10:51 AM, Juergen Gross wrote: On 24/04/18 07:43, Oleksandr Andrushchenko wrote: On 04/24/2018 01:41 AM, Boris Ostrovsky wrote: On 04/23/2018 08:10 AM, Oleksandr Andrushchenko wrote: On 04/23/2018 02:52 PM, Wei Liu wrote: On Fri, Apr 20, 2018 at 02:25:20PM +0300, Oleksandr

[Xen-devel] [PATCH] xen/kbdif: Add frontend's virtual device options

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> It is now not possible to control if and which virtual devices are created by the frontend, e.g. keyboard and pointer devices are always created and multi-touch device is created if the backend advertises multi-touch s

Re: [Xen-devel] [PATCH v2] Input: xen-kbdfront - allow better run-time configuration

On 04/23/2018 09:55 PM, Dmitry Torokhov wrote: On Mon, Apr 23, 2018 at 11:29:45AM +0300, Oleksandr Andrushchenko wrote: On 04/23/2018 11:23 AM, Juergen Gross wrote: On 23/04/18 10:02, Oleksandr Andrushchenko wrote: Juergen, Jason, Dmitry any comment on this? Oleksandr, please give us some

Re: [Xen-devel] [PATCH] Input: xen-kbdfront - allow better run-time configuration

On 04/23/2018 09:53 PM, Dmitry Torokhov wrote: On Thu, Apr 19, 2018 at 02:44:19PM +0300, Oleksandr Andrushchenko wrote: On 04/19/2018 02:25 PM, Juergen Gross wrote: On 18/04/18 17:04, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> It

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

On 04/24/2018 01:41 AM, Boris Ostrovsky wrote: On 04/23/2018 08:10 AM, Oleksandr Andrushchenko wrote: On 04/23/2018 02:52 PM, Wei Liu wrote: On Fri, Apr 20, 2018 at 02:25:20PM +0300, Oleksandr Andrushchenko wrote: the gntdev. I think this is generic enough that it could be implemented

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

On 04/23/2018 02:52 PM, Wei Liu wrote: On Fri, Apr 20, 2018 at 02:25:20PM +0300, Oleksandr Andrushchenko wrote: the gntdev. I think this is generic enough that it could be implemented by a device not tied to Xen. AFAICT the hyper_dma guys also wanted something similar to this. You can't

Re: [Xen-devel] [PATCH v2] Input: xen-kbdfront - allow better run-time configuration

On 04/23/2018 11:23 AM, Juergen Gross wrote: On 23/04/18 10:02, Oleksandr Andrushchenko wrote: Juergen, Jason, Dmitry any comment on this? Oleksandr, please give us some time. I can't speak for others, but I am not sitting here idling and hoping that some work (e.g. patches to review) might

Re: [Xen-devel] [PATCH v2] Input: xen-kbdfront - allow better run-time configuration

Juergen, Jason, Dmitry any comment on this? Thank you, Oleksandr On 04/19/2018 04:39 PM, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> It is now only possible to control if multi-touch virtual device is created or not (via the corresp

Re: [Xen-devel] [PATCH v2 0/5] ALSA: xen-front: Add Xen para-virtualized frontend driver

On 04/18/2018 06:15 PM, Oleksandr Andrushchenko wrote: On 04/16/2018 09:24 AM, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Please note: this patch series depends on [3]. The dependency is now merged into Xen kernel tree [4] for-linu

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

On 04/20/2018 10:19 AM, Daniel Vetter wrote: On Wed, Apr 18, 2018 at 11:10:58AM +0100, Roger Pau Monné wrote: On Wed, Apr 18, 2018 at 11:01:12AM +0300, Oleksandr Andrushchenko wrote: On 04/18/2018 10:35 AM, Roger Pau Monné wrote: On Wed, Apr 18, 2018 at 09:38:39AM +0300, Oleksandr

[Xen-devel] [PATCH v2] Input: xen-kbdfront - allow better run-time configuration

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> It is now only possible to control if multi-touch virtual device is created or not (via the corresponding XenStore entries), but keyboard and pointer devices are always created. In some cases this is not desirable. For e

Re: [Xen-devel] [PATCH] Input: xen-kbdfront - allow better run-time configuration

On 04/19/2018 04:19 PM, Juergen Gross wrote: On 19/04/18 15:12, Oleksandr Andrushchenko wrote: On 04/19/2018 04:10 PM, Jason Andryuk wrote: On Thu, Apr 19, 2018 at 9:01 AM, Oleksandr Andrushchenko <andr2...@gmail.com> wrote: Ok, so I'll send v2 with the following changes: diff

Re: [Xen-devel] [PATCH] Input: xen-kbdfront - allow better run-time configuration

On 04/19/2018 03:52 PM, Juergen Gross wrote: On 19/04/18 13:44, Oleksandr Andrushchenko wrote: On 04/19/2018 02:25 PM, Juergen Gross wrote: On 18/04/18 17:04, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> It is now only possible to c

Re: [Xen-devel] [PATCH] Input: xen-kbdfront - allow better run-time configuration

On 04/19/2018 02:25 PM, Juergen Gross wrote: On 18/04/18 17:04, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> It is now only possible to control if multi-touch virtual device is created or not (via the corresponding XenStore e

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

On 04/18/2018 07:01 PM, Dongwon Kim wrote: On Wed, Apr 18, 2018 at 03:42:29PM +0300, Oleksandr Andrushchenko wrote: On 04/18/2018 01:55 PM, Roger Pau Monné wrote: On Wed, Apr 18, 2018 at 01:39:35PM +0300, Oleksandr Andrushchenko wrote: On 04/18/2018 01:18 PM, Paul Durrant wrote

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

On 04/18/2018 08:01 PM, Dongwon Kim wrote: On Wed, Apr 18, 2018 at 09:38:39AM +0300, Oleksandr Andrushchenko wrote: On 04/17/2018 11:57 PM, Dongwon Kim wrote: On Tue, Apr 17, 2018 at 09:59:28AM +0200, Daniel Vetter wrote: On Mon, Apr 16, 2018 at 12:29:05PM -0700, Dongwon Kim wrote: Yeah, I

Re: [Xen-devel] [PATCH v2 0/5] ALSA: xen-front: Add Xen para-virtualized frontend driver

On 04/16/2018 09:24 AM, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Please note: this patch series depends on [3]. The dependency is now merged into Xen kernel tree [4] for-linus-4.17 This patch series adds support for Xen [1

[Xen-devel] [PATCH] Input: xen-kbdfront - allow better run-time configuration

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> It is now only possible to control if multi-touch virtual device is created or not (via the corresponding XenStore entries), but keyboard and pointer devices are always created. In some cases this is not desirable. For e

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

On 04/18/2018 01:55 PM, Roger Pau Monné wrote: On Wed, Apr 18, 2018 at 01:39:35PM +0300, Oleksandr Andrushchenko wrote: On 04/18/2018 01:18 PM, Paul Durrant wrote: -Original Message- From: Xen-devel [mailto:xen-devel-boun...@lists.xenproject.org] On Behalf Of Roger Pau Monné Sent: 18

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

On 04/18/2018 01:18 PM, Paul Durrant wrote: -Original Message- From: Xen-devel [mailto:xen-devel-boun...@lists.xenproject.org] On Behalf Of Roger Pau Monné Sent: 18 April 2018 11:11 To: Oleksandr Andrushchenko <andr2...@gmail.com> Cc: jgr...@suse.com; Artem Mygaiev <a

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

On 04/18/2018 01:23 PM, Paul Durrant wrote: -Original Message- From: Oleksandr Andrushchenko [mailto:andr2...@gmail.com] Sent: 18 April 2018 11:21 To: Paul Durrant <paul.durr...@citrix.com>; Roger Pau Monne <roger@citrix.com> Cc: jgr...@suse.com; Artem Mygaiev <artem_m

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

On 04/18/2018 01:18 PM, Paul Durrant wrote: -Original Message- From: Xen-devel [mailto:xen-devel-boun...@lists.xenproject.org] On Behalf Of Roger Pau Monné Sent: 18 April 2018 11:11 To: Oleksandr Andrushchenko <andr2...@gmail.com> Cc: jgr...@suse.com; Artem Mygaiev <a

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

On 04/18/2018 10:35 AM, Roger Pau Monné wrote: On Wed, Apr 18, 2018 at 09:38:39AM +0300, Oleksandr Andrushchenko wrote: On 04/17/2018 11:57 PM, Dongwon Kim wrote: On Tue, Apr 17, 2018 at 09:59:28AM +0200, Daniel Vetter wrote: On Mon, Apr 16, 2018 at 12:29:05PM -0700, Dongwon Kim wrote: 3.2

Re: [Xen-devel] [PATCH] drm/xen-front: Remove CMA support

On 04/17/2018 12:08 PM, Oleksandr Andrushchenko wrote: On 04/17/2018 12:04 PM, Daniel Vetter wrote: On Tue, Apr 17, 2018 at 10:40:12AM +0300, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Even if xen-front allocates its buffers from cont

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

een VMs to communicate buffer creation/deletion and whatever else is needed (fences?). To Xen community: please think of dma-buf here as of a buffer representation mechanism, e.g. at the end of the day it's just a set of pages. Thank you, Oleksandr -Daniel Regards, DW On Mon, Apr 16, 201

Re: [Xen-devel] [PATCH v2 0/5] ALSA: xen-front: Add Xen para-virtualized frontend driver

. Thank you, Oleksandr On 04/16/2018 09:24 AM, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Please note: this patch series depends on [3]. This patch series adds support for Xen [1] para-virtualized sound frontend driver. It impl

Re: [Xen-devel] [PATCH v2 5/5] ALSA: xen-front: Implement ALSA virtual sound driver

On 04/17/2018 03:32 PM, Juergen Gross wrote: On 17/04/18 14:26, Oleksandr Andrushchenko wrote: On 04/17/2018 02:32 PM, Oleksandr Andrushchenko wrote: On 04/16/2018 05:09 PM, Juergen Gross wrote: On 16/04/18 08:24, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko

Re: [Xen-devel] [PATCH v2 5/5] ALSA: xen-front: Implement ALSA virtual sound driver

On 04/17/2018 02:32 PM, Oleksandr Andrushchenko wrote: On 04/16/2018 05:09 PM, Juergen Gross wrote: On 16/04/18 08:24, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Implement essential initialization of the sound driver:    - int

Re: [Xen-devel] [PATCH v2 5/5] ALSA: xen-front: Implement ALSA virtual sound driver

On 04/16/2018 05:09 PM, Juergen Gross wrote: On 16/04/18 08:24, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Implement essential initialization of the sound driver: - introduce required data structures - handle driver regist

Re: [Xen-devel] [PATCH v2 3/5] ALSA: xen-front: Implement Xen event channel handling

On 04/17/2018 02:14 PM, Juergen Gross wrote: On 17/04/18 10:58, Oleksandr Andrushchenko wrote: On 04/16/2018 04:12 PM, Juergen Gross wrote: On 16/04/18 08:24, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Handle Xen event ch

Re: [Xen-devel] [PATCH v2 4/5] ALSA: xen-front: Implement handling of shared buffers

On 04/16/2018 04:39 PM, Juergen Gross wrote: On 16/04/18 08:24, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Implement shared buffer handling according to the para-virtualized sound device protocol at xen/interface/io/sndif.h: -

Re: [Xen-devel] [PATCH] drm/xen-front: Remove CMA support

On 04/17/2018 12:04 PM, Daniel Vetter wrote: On Tue, Apr 17, 2018 at 10:40:12AM +0300, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Even if xen-front allocates its buffers from contiguous memory those are still not contiguous in PA spac

Re: [Xen-devel] [PATCH v2 3/5] ALSA: xen-front: Implement Xen event channel handling

On 04/16/2018 04:12 PM, Juergen Gross wrote: On 16/04/18 08:24, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Handle Xen event channels: - create for all configured streams and publish corresponding ring references and event ch

Re: [Xen-devel] [PATCH v2 2/5] ALSA: xen-front: Read sound driver configuration from Xen store

On 04/16/2018 03:55 PM, Juergen Gross wrote: On 16/04/18 08:24, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Read configuration values from Xen store according to xen/interface/io/sndif.h protocol: - introduce configuration stru

Re: [Xen-devel] [PATCH v2 1/5] ALSA: xen-front: Introduce Xen para-virtualized sound frontend driver

On 04/16/2018 03:25 PM, Juergen Gross wrote: On 16/04/18 08:24, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Introduce skeleton of the para-virtualized Xen sound frontend driver. Initial handling for Xen bus states: implement Xen bus

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

s well as DRI-Devel and other interested parties. Thank you, Oleksandr On 03/29/2018 04:19 PM, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Hello! When using Xen PV DRM frontend driver then on backend side one will need to do copying of

[Xen-devel] [PATCH] drm/xen-front: Remove CMA support

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Even if xen-front allocates its buffers from contiguous memory those are still not contiguous in PA space, e.g. the buffer is only contiguous in IPA space. The only use-case for this mode was if xen-front is used to allocat

Re: [Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

04:19 PM, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Hello! When using Xen PV DRM frontend driver then on backend side one will need to do copying of display buffers' contents (filled by the frontend's user-space) into buffers all

[Xen-devel] [PATCH v2 3/5] ALSA: xen-front: Implement Xen event channel handling

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Handle Xen event channels: - create for all configured streams and publish corresponding ring references and event channels in Xen store, so backend can connect - implement event channels interrupt handlers -

[Xen-devel] [PATCH v2 1/5] ALSA: xen-front: Introduce Xen para-virtualized sound frontend driver

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Introduce skeleton of the para-virtualized Xen sound frontend driver. Initial handling for Xen bus states: implement Xen bus state machine for the frontend driver according to the state diagram and recovery flow from soun

[Xen-devel] [PATCH v2 2/5] ALSA: xen-front: Read sound driver configuration from Xen store

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Read configuration values from Xen store according to xen/interface/io/sndif.h protocol: - introduce configuration structures for different components, e.g. sound card, device, stream - read PCM HW parameters, e.

[Xen-devel] [PATCH v2 4/5] ALSA: xen-front: Implement handling of shared buffers

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Implement shared buffer handling according to the para-virtualized sound device protocol at xen/interface/io/sndif.h: - manage buffer memory - handle granted references - handle page directories Signed-off-by: Ole

[Xen-devel] [PATCH v2 5/5] ALSA: xen-front: Implement ALSA virtual sound driver

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Implement essential initialization of the sound driver: - introduce required data structures - handle driver registration - handle sound card registration - register sound driver on backend connection - remove sound

[Xen-devel] [PATCH v2 0/5] ALSA: xen-front: Add Xen para-virtualized frontend driver

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Please note: this patch series depends on [3]. This patch series adds support for Xen [1] para-virtualized sound frontend driver. It implements the protocol from include/xen/interface/io/sndif.h with the following limit

[Xen-devel] [PATCH RESEND] xen/sndif: Sync up with the canonical definition in Xen

the protocol: add XENSND_OP_HW_PARAM_QUERY request to read/update configuration space for the parameters given: request passes desired parameter's intervals/masks and the response to this request returns allowed min/max intervals/masks to be used. Signed-off-by: Oleksandr Andrushchenko &

Re: [Xen-devel] [PATCH 0/5] for-linux/sndif: add explicit back and front synchronization

On 04/12/2018 08:13 PM, Boris Ostrovsky wrote: On 04/12/2018 12:55 PM, Oleksandr Andrushchenko wrote: On 04/12/2018 07:55 PM, Boris Ostrovsky wrote: On 04/12/2018 12:11 PM, Oleksandr Andrushchenko wrote: Hello, Konrad, Takashi! Could you please review the *Linux Kernel* version

Re: [Xen-devel] [PATCH 0/5] for-linux/sndif: add explicit back and front synchronization

On 04/12/2018 07:55 PM, Boris Ostrovsky wrote: On 04/12/2018 12:11 PM, Oleksandr Andrushchenko wrote: Hello, Konrad, Takashi! Could you please review the *Linux Kernel* version of the changes? As I said in the cover letter below there is no functional changes comparing to the corresponding Xen

Re: [Xen-devel] [PATCH 0/5] for-linux/sndif: add explicit back and front synchronization

review. Thank you, Oleksandr P.S. Minus GlobalLogic e-mails which bounce On 04/12/2018 07:00 PM, Oleksandr Andrushchenko wrote: Hello, all! This is the syncup version of the sound protocol changes for Linux Kernel with the only difference from the corresponding Xen version being spaces to tabs

[Xen-devel] [PATCH 2/5] xen/sndif: Fix missed "reserved" fields in comments

Some of the request descriptions have "reserved" fields missed: fix this by adding corresponidng entries. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> --- include/xen/interface/io/sndif.h | 4 1 file changed, 4 insertions(+) diff --git a/inclu

[Xen-devel] [PATCH 3/5] xen/sndif: Make requests and responses 64 octets long

Extend the size of the requests and responses to 64 octets. Bump protocol version to 2. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> --- include/xen/interface/io/sndif.h | 22 +++--- 1 file changed, 11 insertions(+), 11 deletions(-) diff

[Xen-devel] [PATCH 0/5] for-linux/sndif: add explicit back and front synchronization

figuration space. - Minor documentation cleanup (added missed "reserved" fields) Oleksandr Andrushchenko (5): xen/sndif: Introduce protocol version xen/sndif: Fix missed "reserved" fields in comments xen/sndif: Make requests and responses 64 octets long xen/sndi

[Xen-devel] [PATCH 1/5] xen/sndif: Introduce protocol version

Protocol version was referenced in the protocol description, but missed its definition. Fix this by adding a constant for current protocol version. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> --- include/xen/interface/io/sndif.h | 7 +++ 1 file chan

[Xen-devel] [PATCH 4/5] xen/sndif: Add explicit back and front synchronization

trigger events for playback control: start/stop/pause/resume - add "req-" prefix to event-channel and ring-ref to unify naming of the Xen event channels for requests and events Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Signed-off-by: O

[Xen-devel] [PATCH 5/5] xen/sndif: Add explicit back and front parameter negotiation

and the response to this request returns allowed min/max intervals/masks to be used. Parameters supported by this request/response: - format mask - sample rate interval - number of channels interval - buffer size, interval, frames - period size, interval, frames Signed-off-by: Oleksandr Andrushchenko

Re: [Xen-devel] [PATCH v3 0/5] sndif: add explicit back and front synchronization

On 04/12/2018 05:31 PM, Konrad Rzeszutek Wilk wrote: On Wed, Mar 21, 2018 at 09:15:36AM +0200, Oleksandr Andrushchenko wrote: On 03/20/2018 10:22 PM, Takashi Iwai wrote: On Mon, 19 Mar 2018 08:22:19 +0100, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrush

Re: [Xen-devel] [PATCH v6 0/1] drm/xen-front: Add support for Xen PV display frontend

Hi, Peng! On 04/12/2018 05:21 AM, Peng Fan wrote: Hi Oleksandr, Just have a question, is this drm/xen-front stuff orthogonal to xen shared coprocessor framework for gpu, or are they exclusive? They are orthogonal Thanks, Peng. ___ Xen-devel

Re: [Xen-devel] [RFC, v2, 1/9] hyper_dmabuf: initial upload of hyper_dmabuf drv core framework

On 04/10/2018 01:47 PM, Julien Grall wrote: Hi, On 04/10/2018 09:53 AM, Oleksandr Andrushchenko wrote: On 02/14/2018 03:50 AM, Dongwon Kim wrote: diff --git a/drivers/dma-buf/hyper_dmabuf/hyper_dmabuf_id.h [...] +#ifndef __HYPER_DMABUF_ID_H__ +#define __HYPER_DMABUF_ID_H__ + +#define

Re: [Xen-devel] [RFC, v2, 9/9] hyper_dmabuf: threaded interrupt in Xen-backend

On 02/14/2018 03:50 AM, Dongwon Kim wrote: Use threaded interrupt intead of regular one because most part of ISR is time-critical and possibly sleeps Signed-off-by: Dongwon Kim --- .../hyper_dmabuf/backends/xen/hyper_dmabuf_xen_comm.c | 19 +++ 1 file

Re: [Xen-devel] [RFC, v2, 4/9] hyper_dmabuf: user private data attached to hyper_DMABUF

On 02/14/2018 03:50 AM, Dongwon Kim wrote: Define a private data (e.g. meta data for the buffer) attached to each hyper_DMABUF structure. This data is provided by userapace via export_remote IOCTL and its size can be up to 192 bytes. Signed-off-by: Dongwon Kim

Re: [Xen-devel] [RFC, v2, 2/9] hyper_dmabuf: architecture specification and reference guide

Sorry for top-posting Can we have all this go into some header file which will not only describe the structures/commands/responses/etc, but will also allow drivers to use those directly without defining the same one more time in the code? For example, this is how it is done in Xen [1]. This

Re: [Xen-devel] [RFC, v2, 5/9] hyper_dmabuf: default backend for XEN hypervisor

On 02/14/2018 03:50 AM, Dongwon Kim wrote: From: "Matuesz Polrola" The default backend for XEN hypervisor. This backend contains actual implementation of individual methods defined in "struct hyper_dmabuf_bknd_ops" defined as: struct hyper_dmabuf_bknd_ops {

Re: [Xen-devel] [RFC, v2, 1/9] hyper_dmabuf: initial upload of hyper_dmabuf drv core framework

On 02/14/2018 03:50 AM, Dongwon Kim wrote: Upload of intial version of core framework in hyper_DMABUF driver enabling DMA_BUF exchange between two different VMs in virtualized platform based on Hypervisor such as XEN. Hyper_DMABUF drv's primary role is to import a DMA_BUF from originator then

Re: [Xen-devel] [PATCH] drm/xen-front: use simple display pipe prepare_fb helper

On 04/09/2018 11:51 AM, Daniel Vetter wrote: I missed this one because on an older tree. Signed-off-by: Daniel Vetter <daniel.vet...@intel.com> Cc: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Cc: xen-de...@lists.xen.org --- drivers/gpu/drm/xen/xen_drm_fro

Re: [Xen-devel] [PATCH v3 0/5] sndif: add explicit back and front synchronization

Konrad? On 04/03/2018 08:37 AM, Oleksandr Andrushchenko wrote: ping On 03/27/2018 08:41 AM, Oleksandr Andrushchenko wrote: Hi, Konrad! Could you please review? Thank you, Oleksandr On 03/21/2018 09:25 AM, Oleksandr Andrushchenko wrote: On 03/21/2018 09:20 AM, Takashi Iwai wrote: On Wed

Re: [Xen-devel] [PATCH 1/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

On 04/03/2018 12:47 PM, Daniel Vetter wrote: On Thu, Mar 29, 2018 at 04:19:31PM +0300, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> +static int to_refs_grant_foreign_access(struct xen_gem_object *xen_obj) +{ + grant_ref_t priv_gre

Re: [Xen-devel] [PATCH v1] xen-blkfront: dynamic configuration of per-vbd resources

On 04/03/2018 02:22 PM, Roger Pau Monné wrote: On Mon, Apr 02, 2018 at 01:42:32PM -0400, Konrad Rzeszutek Wilk wrote: From: Bob Liu The current VBD layer reserves buffer space for each attached device based on three statically configured settings which are read at boot

Re: [Xen-devel] [PATCH v3 0/5] sndif: add explicit back and front synchronization

On 04/06/2018 12:13 PM, Juergen Gross wrote: On 19/03/18 08:22, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Hello, all! In order to provide explicit synchronization between backend and frontend the following changes are intr

Re: [Xen-devel] [PATCH] MAINTAINERS: Add drm/xen-front maintainer entry

On 04/03/2018 03:32 PM, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Add myself as drivers/gpu/drm/xen maintainer. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> --- MAINTAINERS | 9 + 1 fil

[Xen-devel] [PATCH] MAINTAINERS: Add drm/xen-front maintainer entry

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Add myself as drivers/gpu/drm/xen maintainer. Signed-off-by: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> --- MAINTAINERS | 9 + 1 file changed, 9 insertions(+) diff --git a/MAINTAINERS b/MAINT

Re: [Xen-devel] [PATCH v6 RESEND 0/1] drm/xen-front: Add support for Xen PV display frontend

On 04/03/2018 02:23 PM, Oleksandr Andrushchenko wrote: Resending with even more checkpatch code-style fixes. Applied, thank you! ___ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel

[Xen-devel] [PATCH v6 RESEND 1/1] drm/xen-front: Add support for Xen PV display frontend

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Add support for Xen para-virtualized frontend display driver. Accompanying backend [1] is implemented as a user-space application and its helper library [2], capable of running as a Weston client or DRM master. Configuration o

[Xen-devel] [PATCH v6 RESEND 0/1] drm/xen-front: Add support for Xen PV display frontend

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Resending with even more checkpatch code-style fixes. Hello! Boris/Daniel, I put your R-b tags, so please do let me know if this is not acceptable, so I remove the tags. This patch series adds support for Xen [1] para-virtu

[Xen-devel] [PATCH v6 0/1] drm/xen-front: Add support for Xen PV display frontend

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Hello! Boris/Daniel, I put your R-b tags, so please do let me know if this is not acceptable, so I remove the tags. This patch series adds support for Xen [1] para-virtualized frontend display driver. It implements the pr

Re: [Xen-devel] [PATCH v3 0/5] sndif: add explicit back and front synchronization

ping On 03/27/2018 08:41 AM, Oleksandr Andrushchenko wrote: Hi, Konrad! Could you please review? Thank you, Oleksandr On 03/21/2018 09:25 AM, Oleksandr Andrushchenko wrote: On 03/21/2018 09:20 AM, Takashi Iwai wrote: On Wed, 21 Mar 2018 08:15:36 +0100, Oleksandr Andrushchenko wrote: On 03

[Xen-devel] [PATCH 0/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Hello! When using Xen PV DRM frontend driver then on backend side one will need to do copying of display buffers' contents (filled by the frontend's user-space) into buffers allocated at the backend side. Taking into a

[Xen-devel] [PATCH 1/1] drm/xen-zcopy: Add Xen zero-copy helper DRM driver

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Introduce Xen zero-copy helper DRM driver, add user-space API of the driver: 1. DRM_IOCTL_XEN_ZCOPY_DUMB_FROM_REFS This will create a DRM dumb buffer from grant references provided by the frontend. The intended

Re: [Xen-devel] [PATCH v5 0/1] drm/xen-front: Add support for Xen PV display frontend

On 03/29/2018 12:22 PM, Oleksandr Andrushchenko wrote: Changes since v4: For your convenience I am attaching diff between v4..v5 diff --git a/Documentation/gpu/xen-front.rst b/Documentation/gpu/xen-front.rst index 8188e03c9d23..009d942386c5 100644 --- a/Documentation/gpu/xen-front.rst +++ b

[Xen-devel] [PATCH v5 0/1] drm/xen-front: Add support for Xen PV display frontend

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Hello! Boris/Daniel, I put your R-b tags, so please do let me know if this is not acceptable, so I remove the tags. This patch series adds support for Xen [1] para-virtualized frontend display driver. It implements the pr

[Xen-devel] [PATCH v5 1/1] drm/xen-front: Add support for Xen PV display frontend

From: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com> Add support for Xen para-virtualized frontend display driver. Accompanying backend [1] is implemented as a user-space application and its helper library [2], capable of running as a Weston client or DRM master. Configuration o

Re: [Xen-devel] [PATCH v4 2/2] drm/xen-front: Add support for Xen PV display frontend

On 03/29/2018 10:17 AM, Daniel Vetter wrote: On Wed, Mar 28, 2018 at 01:29:46PM +0300, Oleksandr Andrushchenko wrote: Hi, Daniel! I just noticed I have missed one change in the patch: the below must be static. On 03/28/2018 10:42 AM, Daniel Vetter wrote: +enum drm_mode_status

Re: [Xen-devel] [PATCH v4 2/2] drm/xen-front: Add support for Xen PV display frontend

xen_drm_front_drm_pipeline *pipeline = + container_of(crtc, Could you please amend the patch in attachment when merging, so I don't resend? Thank you in advance, Oleksandr >From 3a82d76bd3d954056b760e5d1d09e2f96a2786ef Mon Sep 17 00:00:00 2001 From: Oleksandr Andrushchenko <oleksandr_andr

Re: [Xen-devel] [PATCH v4 2/2] drm/xen-front: Add support for Xen PV display frontend

On 03/28/2018 10:42 AM, Daniel Vetter wrote: kms side looks good now too. Reviewed-by: Daniel Vetter Thank you ___ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel

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