Re: [Xen-devel] xen/mem-reservation API and out-of-tree kernel modules

On 2/1/19 10:27 AM, Christoph Hellwig wrote: > On Thu, Jan 31, 2019 at 01:44:15PM -0800, Stefano Stabellini wrote: >> The alternative would be to turn xenmem_reservation_scrub_page into a >> regular function (not a static inline)? > All that is a moot point until said currently out of tree module

[Xen-devel] xen/mem-reservation API and out-of-tree kernel modules

Hello, I am working on porting an out-of-tree kernel driver to the kernel 5.0 and that driver uses functionality provided by drivers/xen/mem-reservation.c module.  Since commit [1] it is not possible to build a kernel module which uses mem-reservation API as xen_scrub_pages variable, which is

Re: [Xen-devel] [PATCH v4 0/1] cameraif: add ABI for para-virtual camera

Konrad, could you please review? Thank you, Oleksandr On 1/15/19 11:38 AM, Oleksandr Andrushchenko wrote: > From: Oleksandr Andrushchenko > > Hello! > > At the moment Xen [1] already supports some virtual multimedia > features [2] such as virtual display, sound. It

Re: [Xen-devel] [PATCH v2] drm/xen-front: Make shmem backed display buffer coherent

Dropped in favor of https://lkml.org/lkml/2019/1/29/910 On 1/24/19 5:02 PM, Julien Grall wrote: > > > On 24/01/2019 14:34, Oleksandr Andrushchenko wrote: >> Hello, Julien! > > Hi, > >> On 1/22/19 1:44 PM, Julien Grall wrote: >>> >>> >&g

[Xen-devel] [PATCH] drm/xen-front: Fix mmap attributes for display buffers

From: Oleksandr Andrushchenko When GEM backing storage is allocated those are normal pages, so there is no point using pgprot_writecombine while mmaping. This fixes mismatch of buffer pages' memory attributes between the frontend and backend which may cause screen artifacts. Fixes: c575b7eeb89f

Re: [Xen-devel] [PATCH v2] drm/xen-front: Make shmem backed display buffer coherent

On 1/24/19 5:02 PM, Julien Grall wrote: > > > On 24/01/2019 14:34, Oleksandr Andrushchenko wrote: >> Hello, Julien! > > Hi, > >> On 1/22/19 1:44 PM, Julien Grall wrote: >>> >>> >>> On 1/22/19 10:28 AM, Oleksandr Andrushchenko wrote: &g

Re: [Xen-devel] [PATCH] arch/arm/xen: Remove duplicate header

+Boris and Juergen who can also help getting it in On 1/28/19 8:34 AM, Souptick Joarder wrote: On Mon, Jan 14, 2019 at 4:08 PM Oleksandr Andrushchenko wrote: On 1/7/19 7:37 PM, Souptick Joarder wrote: Remove duplicate header which is included twice. Signed-off-by: Souptick Joarder

Re: [Xen-devel] [PATCH -next] drm/xen-front: Drop pointless static qualifier in fb_destroy()

On 1/26/19 2:05 PM, YueHaibing wrote: > There is no need to have the 'struct drm_framebuffer *fb' variable > static since new value always be assigned before use it. > > Signed-off-by: YueHaibing Good catch, thank you! Reviewed-by: Oleksandr Andrushchenko > --- > d

Re: [Xen-devel] [PATCH v2] drm/xen-front: Make shmem backed display buffer coherent

Hello, Julien! Sorry for the late reply - it took quite some time to collect the data requested. On 1/22/19 1:44 PM, Julien Grall wrote: > > > On 1/22/19 10:28 AM, Oleksandr Andrushchenko wrote: >> Hello, Julien! > > Hi, > >> On 1/21/19 7:09 PM, Julien Gral

Re: [Xen-devel] [PATCH v2] drm/xen-front: Make shmem backed display buffer coherent

Hello, Julien! On 1/21/19 7:09 PM, Julien Grall wrote: > Hello, > > On 21/01/2019 12:43, Oleksandr Andrushchenko wrote: >> On 1/18/19 1:43 PM, Julien Grall wrote: >>> On 18/01/2019 09:40, Oleksandr Andrushchenko wrote: >>>> On 1/17/19 11:18 AM, Christoph Hellw

Re: [Xen-devel] [PATCH v2] drm/xen-front: Make shmem backed display buffer coherent

On 1/18/19 1:43 PM, Julien Grall wrote: > (+ Stefano) > > Hi, > > Sorry for jumping late in the conversation. > > On 18/01/2019 09:40, Oleksandr Andrushchenko wrote: >> On 1/17/19 11:18 AM, Christoph Hellwig wrote: >>> On Wed, Jan 16, 2019 at 06:43:29AM +

Re: [Xen-devel] [PATCH v2] drm/xen-front: Make shmem backed display buffer coherent

On 1/17/19 11:18 AM, Christoph Hellwig wrote: > On Wed, Jan 16, 2019 at 06:43:29AM +0000, Oleksandr Andrushchenko wrote: >>> This whole issue keeps getting more and more confusing. >> Well, I don't really do DMA here, but instead the buffers in >> question are shared w

Re: [Xen-devel] [PATCH v2] drm/xen-front: Make shmem backed display buffer coherent

On 1/16/19 8:36 AM, Christoph Hellwig wrote: > On Wed, Jan 16, 2019 at 07:30:02AM +0100, Gerd Hoffmann wrote: >>Hi, >> >>> + if (!dma_map_sg(dev->dev, xen_obj->sgt->sgl, xen_obj->sgt->nents, >>> + DMA_BIDIRECTIONAL)) { >>> + ret = -EFAULT; >>> + goto

Re: [Xen-devel] [PATCH v2] drm/xen-front: Make shmem backed display buffer coherent

On 1/16/19 8:30 AM, Gerd Hoffmann wrote: >Hi, > >> +if (!dma_map_sg(dev->dev, xen_obj->sgt->sgl, xen_obj->sgt->nents, >> +DMA_BIDIRECTIONAL)) { >> +ret = -EFAULT; >> +goto fail_free_sgt; >> +} > Hmm, so it seems the arm guys could not come up

Re: [Xen-devel] [PATCH] drm: Split out drm_probe_helper.h

rivers/gpu/drm/xen/xen_drm_front_gem.c | 2 +- drivers/gpu/drm/xen/xen_drm_front_kms.c | 2 +- For Xen: Acked-by: Oleksandr Andrushchenko drivers/gpu/drm/zte/zx_drm_drv.c | 2 +- drivers/gpu/drm/zte/zx_hdmi.c | 2 +- drivers/gpu/drm/zte/zx_t

Re: [Xen-devel] [PATCH v4 1/1] cameraif: add ABI for para-virtual camera

On 1/15/19 4:44 PM, Hans Verkuil wrote: > Hi Oleksandr, Hello, Hans! > Just two remaining comments: > > On 1/15/19 10:38 AM, Oleksandr Andrushchenko wrote: >> From: Oleksandr Andrushchenko >> >> This is the ABI for the two halves of a para-virtualized >> cam

[Xen-devel] [PATCH v2] drm/xen-front: Make shmem backed display buffer coherent

From: Oleksandr Andrushchenko When GEM backing storage is allocated with drm_gem_get_pages the backing pages may be cached, thus making it possible that the backend sees only partial content of the buffer which may lead to screen artifacts. Make sure that the frontend's memory is coherent

[Xen-devel] [PATCH v4 1/1] cameraif: add ABI for para-virtual camera

From: Oleksandr Andrushchenko This is the ABI for the two halves of a para-virtualized camera driver which extends Xen's reach multimedia capabilities even farther enabling it for video conferencing, In-Vehicle Infotainment, high definition maps etc. The initial goal is to support most needed

[Xen-devel] [PATCH v4 0/1] cameraif: add ABI for para-virtual camera

From: Oleksandr Andrushchenko Hello! At the moment Xen [1] already supports some virtual multimedia features [2] such as virtual display, sound. It supports keyboards, pointers and multi-touch devices all allowing Xen to be used in automotive appliances, In-Vehicle Infotainment (IVI) systems

Re: [Xen-devel] [PATCH] arch/arm/xen: Remove duplicate header

On 1/7/19 7:37 PM, Souptick Joarder wrote: Remove duplicate header which is included twice. Signed-off-by: Souptick Joarder Reviewed-by: Oleksandr Andrushchenko --- arch/arm/xen/mm.c | 1 - 1 file changed, 1 deletion(-) diff --git a/arch/arm/xen/mm.c b/arch/arm/xen/mm.c index cb44aa2

Re: [Xen-devel] [PATCH v3 1/1] cameraif: add ABI for para-virtual camera

Hello, Hans! Could you please take a look at my answers below and kindly let me know if we are ready for (final?) v4 from your point of view. Konrad, Xen-devel - do you have any objections/comments on this? Thank you, Oleksandr On 12/17/18 9:37 AM, Oleksandr Andrushchenko wrote: Hello, Hans

Re: [Xen-devel] [PATCH 5/9] drm/xen/xen_drm_front_gem.c: Convert to use vm_insert_range

On 1/11/19 5:10 PM, Souptick Joarder wrote: Convert to use vm_insert_range() to map range of kernel memory to user vma. Signed-off-by: Souptick Joarder Reviewed-by: Oleksandr Andrushchenko --- drivers/gpu/drm/xen/xen_drm_front_gem.c | 18 +- 1 file changed, 5 insertions

Re: [Xen-devel] [PATCH] drm/xen-front: Make shmem backed display buffer coherent

On 12/20/18 8:38 PM, Christoph Hellwig wrote: On Thu, Dec 20, 2018 at 07:35:15PM +0100, Daniel Vetter wrote: Err, with streaming DMA buffer sharing is trivial. The coherent DMA allocator is what causes all kinds of horrible hacks that can't actually work on various platforms. Hm, I thought

Re: [Xen-devel] [PATCH] drm/xen-front: Make shmem backed display buffer coherent

On 12/20/18 5:36 PM, Christoph Hellwig wrote: On Tue, Dec 18, 2018 at 08:20:22PM +0100, Noralf Trønnes wrote: + if (!dma_map_sg(dev->dev, xen_obj->sgt->sgl, xen_obj->sgt->nents, + DMA_BIDIRECTIONAL)) { Are you using the DMA streaming API as a way to flush the

Re: [Xen-devel] drm_gem_get_pages and proper flushing/coherency

community help understand the right way to flush those pages, so I don't need to use DMA for that? Thank you, Oleksandr On 11/26/18 2:15 PM, Oleksandr Andrushchenko wrote: Hello, all! My driver (Xen para-virtualized frontend) in some scenarios uses drm_gem_get_pages for allocating backing storage

Re: [Xen-devel] [PATCH] drm/xen-front: Make shmem backed display buffer coherent

On 12/19/18 6:14 PM, Noralf Trønnes wrote: Den 19.12.2018 09.18, skrev Oleksandr Andrushchenko: On 12/18/18 9:20 PM, Noralf Trønnes wrote: Den 27.11.2018 11.32, skrev Oleksandr Andrushchenko: From: Oleksandr Andrushchenko When GEM backing storage is allocated with drm_gem_get_pages

Re: [Xen-devel] [PATCH] drm/xen-front: Make shmem backed display buffer coherent

On 12/19/18 4:10 PM, Gerd Hoffmann wrote: Hi, Sure this actually helps? It's below 4G in guest physical address space, so it can be backed by pages which are actually above 4G in host physical address space ... Yes, you are right here. This is why I wrote about the IOMMU and other

Re: [Xen-devel] [PATCH] drm/xen-front: Make shmem backed display buffer coherent

On 12/19/18 3:14 PM, Gerd Hoffmann wrote: Hi, +    mapping = xen_obj->base.filp->f_mapping; +    mapping_set_gfp_mask(mapping, GFP_USER | __GFP_DMA32); Let's see if I understand what you're doing: Here you say that the pages should be DMA accessible for devices that can only see 4GB.

Re: [Xen-devel] [XEN][ARM64] PV DRM failing to convert virtual to physical address

have in your rootfs On Tue, Dec 18, 2018 at 12:06 PM Oleksandr Andrushchenko mailto:andr2...@gmail.com>> wrote: Hello, Vikram! >   * We are using 64 bit arm platform. >   * Linux 4.20 Kernel in DomU with PV DRM front-end drivers. > >> Do you have [1] enabled in your DomD

Re: [Xen-devel] [PATCH] drm/xen-front: Make shmem backed display buffer coherent

On 12/18/18 9:20 PM, Noralf Trønnes wrote: Den 27.11.2018 11.32, skrev Oleksandr Andrushchenko: From: Oleksandr Andrushchenko When GEM backing storage is allocated with drm_gem_get_pages the backing pages may be cached, thus making it possible that the backend sees only partial content

Re: [Xen-devel] [PATCH v2 2/3] drm/xen-front: Use Xen common shared buffer implementation

On 12/18/18 20:31, Boris Ostrovsky wrote: On 12/18/18 11:15 AM, Noralf Trønnes wrote: Den 30.11.2018 08.42, skrev Oleksandr Andrushchenko: From: Oleksandr Andrushchenko Use page directory based shared buffer implementation now available as common code for Xen frontend drivers. Remove

Re: [Xen-devel] [PATCH v2 2/3] drm/xen-front: Use Xen common shared buffer implementation

On 12/17/18 5:26 PM, Boris Ostrovsky wrote: On 12/17/18 10:03 AM, Oleksandr Andrushchenko wrote: On 12/17/18 4:52 PM, Boris Ostrovsky wrote: On 12/17/18 5:19 AM, Oleksandr Andrushchenko wrote: Hello, Juergen, Boris! As this DRM part of the series is the only one which needs ack/nack

Re: [Xen-devel] [XEN][ARM64] PV DRM failing to convert virtual to physical address

Hello, Vikram! First of all what makes you think this is related to PV DRM? Please see inline for more comments Thank you, Oleksandr On 12/18/18 7:26 AM, Vikram K wrote: Hello, When PV DRM is enabled and Domain-U is started xen is not able to converted virtual address to physical. Please

Re: [Xen-devel] [PATCH v2 2/3] drm/xen-front: Use Xen common shared buffer implementation

On 12/17/18 4:52 PM, Boris Ostrovsky wrote: On 12/17/18 5:19 AM, Oleksandr Andrushchenko wrote: Hello, Juergen, Boris! As this DRM part of the series is the only one which needs ack/nack (and it might take quite some time to complete) could we please merge the patches 1 and 3 now

Re: [Xen-devel] [PATCH v2 2/3] drm/xen-front: Use Xen common shared buffer implementation

Hello, Juergen, Boris! As this DRM part of the series is the only one which needs ack/nack (and it might take quite some time to complete) could we please merge the patches 1 and 3 now that already have ack/r-b? Thank you, Oleksandr On 12/13/18 12:16 PM, Oleksandr Andrushchenko wrote: bump

Re: [Xen-devel] [PATCH] drm/xen-front: Make shmem backed display buffer coherent

On 12/14/18 10:35 AM, Daniel Vetter wrote: On Fri, Dec 14, 2018 at 09:09:45AM +0200, Oleksandr Andrushchenko wrote: On 12/13/18 5:48 PM, Daniel Vetter wrote: On Thu, Dec 13, 2018 at 12:17:54PM +0200, Oleksandr Andrushchenko wrote: Daniel, could you please comment? Cross-revieweing someone

Re: [Xen-devel] [PATCH v3 1/1] cameraif: add ABI for para-virtual camera

Hello, Hans! Thank you for reviewing, please find my answers inline On 12/14/18 2:14 PM, Hans Verkuil wrote: Hi Oleksandr, This is looking a lot better than v2. I do have a few remaining comments about some things that are a bit unclear to me. On 12/12/18 10:49 AM, Oleksandr Andrushchenko

Re: [Xen-devel] [PATCH v3 1/1] cameraif: add ABI for para-virtual camera

PFA the diff between v2 and v3 for your convenience On 12/12/18 11:49 AM, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko This is the ABI for the two halves of a para-virtualized camera driver which extends Xen's reach multimedia capabilities even farther enabling it for video

Re: [Xen-devel] [PATCH] drm/xen-front: Make shmem backed display buffer coherent

On 12/13/18 5:48 PM, Daniel Vetter wrote: On Thu, Dec 13, 2018 at 12:17:54PM +0200, Oleksandr Andrushchenko wrote: Daniel, could you please comment? Cross-revieweing someone else's stuff would scale better, fair enough I don't think I'll get around to anything before next year. I put you

Re: [Xen-devel] [PATCH v2 2/3] drm/xen-front: Use Xen common shared buffer implementation

bump On 12/5/18 10:20 AM, Oleksandr Andrushchenko wrote: Hello, Daniel! Could you please ack/nack the patch, so either we can merge the series or I can address your comments if any Thank you, Oleksandr On 11/30/18 9:42 AM, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko Use

[Xen-devel] [PATCH v3 0/1] cameraif: add ABI for para-virtual camera

From: Oleksandr Andrushchenko Hello! At the moment Xen [1] already supports some virtual multimedia features [2] such as virtual display, sound. It supports keyboards, pointers and multi-touch devices all allowing Xen to be used in automotive appliances, In-Vehicle Infotainment (IVI) systems

[Xen-devel] [PATCH v3 1/1] cameraif: add ABI for para-virtual camera

From: Oleksandr Andrushchenko This is the ABI for the two halves of a para-virtualized camera driver which extends Xen's reach multimedia capabilities even farther enabling it for video conferencing, In-Vehicle Infotainment, high definition maps etc. The initial goal is to support most needed

Re: [Xen-devel] [PATCH 6/7] drm/xen: Don't set the dpms hook

On 12/10/18 12:03 PM, Daniel Vetter wrote: Doesn't do anything for atomic. Signed-off-by: Daniel Vetter Cc: Oleksandr Andrushchenko Cc: xen-de...@lists.xen.org --- drivers/gpu/drm/xen/xen_drm_front_conn.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/gpu/drm/xen

Re: [Xen-devel] [PATCH v2 2/3] drm/xen-front: Use Xen common shared buffer implementation

Hello, Daniel! Could you please ack/nack the patch, so either we can merge the series or I can address your comments if any Thank you, Oleksandr On 11/30/18 9:42 AM, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko Use page directory based shared buffer implementation now

Re: [Xen-devel] drm_gem_get_pages and proper flushing/coherency

On 11/26/18 2:15 PM, Oleksandr Andrushchenko wrote: Hello, all! My driver (Xen para-virtualized frontend) in some scenarios uses drm_gem_get_pages for allocating backing storage for dumb buffers. There are use-cases which showed some artifacts on the screen (modetest, other) which were worked

Re: [Xen-devel] [alsa-devel] [PATCH v2 3/3] ALSA: xen-front: Use Xen common shared buffer implementation

On 12/3/18 11:36 AM, Takashi Iwai wrote: On Fri, 30 Nov 2018 08:42:05 +0100, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko Use page directory based shared buffer implementation now available as common code for Xen frontend drivers. Signed-off-by: Oleksandr Andrushchenko

Re: [Xen-devel] [PATCH v2 1/3] xen: Introduce shared buffer helpers for page directory...

Changes in the series since v1: - no changes to patch 1 (Xen shared code) - ALSA: fix comment from Takashi (NULL stream->buffer) - DRM: removed display buffer flush workaround (proper fix is on review [1]) Thank you, Oleksandr On 11/30/18 9:42 AM, Oleksandr Andrushchenko wrote: F

[Xen-devel] [PATCH v2 1/3] xen: Introduce shared buffer helpers for page directory...

From: Oleksandr Andrushchenko based frontends. Currently the frontends which implement similar code for sharing big buffers between frontend and backend are para-virtualized DRM and sound drivers. Both define the same way to share grant references of a data buffer with the corresponding backend

[Xen-devel] [PATCH v2 3/3] ALSA: xen-front: Use Xen common shared buffer implementation

From: Oleksandr Andrushchenko Use page directory based shared buffer implementation now available as common code for Xen frontend drivers. Signed-off-by: Oleksandr Andrushchenko --- sound/xen/Kconfig | 1 + sound/xen/Makefile | 1 - sound/xen/xen_snd_front.c

[Xen-devel] [PATCH v2 2/3] drm/xen-front: Use Xen common shared buffer implementation

From: Oleksandr Andrushchenko Use page directory based shared buffer implementation now available as common code for Xen frontend drivers. Remove flushing of shared buffer on page flip as this workaround needs a proper fix. Signed-off-by: Oleksandr Andrushchenko --- drivers/gpu/drm/xen

Re: [Xen-devel] [PATCH 1/3] xen: Introduce shared buffer helpers for page directory...

On 11/30/18 8:50 AM, Juergen Gross wrote: On 29/11/2018 12:22, Oleksandr Andrushchenko wrote: ping On 11/22/18 12:02 PM, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko based frontends. Currently the frontends which implement similar code for sharing big buffers between

Re: [Xen-devel] [PATCH 1/3] xen: Introduce shared buffer helpers for page directory...

ping On 11/22/18 12:02 PM, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko based frontends. Currently the frontends which implement similar code for sharing big buffers between frontend and backend are para-virtualized DRM and sound drivers. Both define the same way to share

[Xen-devel] [PATCH] drm/xen-front: Make shmem backed display buffer coherent

From: Oleksandr Andrushchenko When GEM backing storage is allocated with drm_gem_get_pages the backing pages may be cached, thus making it possible that the backend sees only partial content of the buffer which may lead to screen artifacts. Make sure that the frontend's memory is coherent

[Xen-devel] drm_gem_get_pages and proper flushing/coherency

Hello, all! My driver (Xen para-virtualized frontend) in some scenarios uses drm_gem_get_pages for allocating backing storage for dumb buffers. There are use-cases which showed some artifacts on the screen (modetest, other) which were worked around by flushing pages of the buffer on page flip

Re: [Xen-devel] [PATCH 2/3] drm/xen-front: Use Xen common shared buffer implementation

Hi, Daniel! On 11/22/18 4:33 PM, Daniel Vetter wrote: On Thu, Nov 22, 2018 at 12:02:29PM +0200, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko Use page directory based shared buffer implementation now available as common code for Xen frontend drivers. Signed-off-by: Oleksandr

Re: [Xen-devel] [alsa-devel] [PATCH 3/3] ALSA: xen-front: Use Xen common shared buffer implementation

On 11/22/18 5:47 PM, Takashi Iwai wrote: On Thu, 22 Nov 2018 11:02:30 +0100, Oleksandr Andrushchenko wrote: @@ -214,12 +221,19 @@ static void stream_clear(struct xen_snd_front_pcm_stream_info *stream) stream->out_frames = 0; atomic_set(>hw_

[Xen-devel] [PATCH 2/3] drm/xen-front: Use Xen common shared buffer implementation

From: Oleksandr Andrushchenko Use page directory based shared buffer implementation now available as common code for Xen frontend drivers. Signed-off-by: Oleksandr Andrushchenko --- drivers/gpu/drm/xen/Kconfig | 1 + drivers/gpu/drm/xen/Makefile | 1 - drivers

[Xen-devel] [PATCH 3/3] ALSA: xen-front: Use Xen common shared buffer implementation

From: Oleksandr Andrushchenko Use page directory based shared buffer implementation now available as common code for Xen frontend drivers. Signed-off-by: Oleksandr Andrushchenko --- sound/xen/Kconfig | 1 + sound/xen/Makefile | 1 - sound/xen/xen_snd_front.c

[Xen-devel] [PATCH 1/3] xen: Introduce shared buffer helpers for page directory...

From: Oleksandr Andrushchenko based frontends. Currently the frontends which implement similar code for sharing big buffers between frontend and backend are para-virtualized DRM and sound drivers. Both define the same way to share grant references of a data buffer with the corresponding backend

Re: [Xen-devel] [PATCH 5/9] drm/xen/xen_drm_front_gem.c: Convert to use vm_insert_range

On 11/19/18 12:42 PM, Souptick Joarder wrote: On Mon, Nov 19, 2018 at 3:22 PM Oleksandr Andrushchenko wrote: On 11/15/18 5:49 PM, Souptick Joarder wrote: Convert to use vm_insert_range() to map range of kernel memory to user vma. Signed-off-by: Souptick Joarder Reviewed-by: Matthew Wilcox

Re: [Xen-devel] [PATCH 5/9] drm/xen/xen_drm_front_gem.c: Convert to use vm_insert_range

p(struct file *filp, struct vm_area_struct *vma) With the above fixed, Reviewed-by: Oleksandr Andrushchenko ___ Xen-devel mailing list Xen-devel@lists.xenproject.org https://lists.xenproject.org/mailman/listinfo/xen-devel

Re: [Xen-devel] [PATCH v5 21/25] xen: support console_switching between Dom0 and DomUs on ARM

On 10/23/2018 05:03 AM, Stefano Stabellini wrote: Today Ctrl-AAA is used to switch between Xen and Dom0. Extend the mechanism to allow for switching between Xen, Dom0, and any of the initial DomU created from Xen alongside Dom0 out of information provided via device tree. Rename xen_rx to

Re: [Xen-devel] [PATCH v5 23/25] xen/vpl011: buffer out chars when the backend is xen

On 10/23/2018 05:03 AM, Stefano Stabellini wrote: To avoid mixing the output of different domains on the console, buffer the output chars and print line by line. Unless the domain has input from the serial, in which case we want to print char by char for a smooth user experience. The size of

Re: [Xen-devel] [PATCH v5 0/6] Allow setting up shared memory areas between VMs from xl config files

On 10/24/2018 05:24 PM, Julien Grall wrote: On 10/24/18 3:15 PM, Oleksandr Andrushchenko wrote: Hi, Stefano! I'm just curious if the below is on your TODO list [1]: 3. Future Directions: Allow users to optionally share *mfn-contiguous

Re: [Xen-devel] [PATCH v5 0/6] Allow setting up shared memory areas between VMs from xl config files

Hi, Stefano! I'm just curious if the below is on your TODO list [1]: 3. Future Directions: Allow users to optionally share *mfn-contiguous* pages. Thank you, Oleksandr On 05/25/2018 03:55 AM, Stefano Stabellini wrote: Hi, This series

Re: [Xen-devel] [PATCH v8 7/8] xen/arm: export shared memory regions as reserved-memory on device tree

On 10/09/2018 02:37 AM, Stefano Stabellini wrote: Shared memory regions need to be advertised to the guest. Fortunately, a device tree binding for special memory regions already exist: reserved-memory. Add a reserved-memory node for each shared memory region, for both masters and slaves.

Re: [Xen-devel] [PATCH v8 4/8] libxl: support unmapping static shared memory areas during domain destruction

On 10/09/2018 02:37 AM, Stefano Stabellini wrote: From: Zhongze Liu Author: Zhongze Liu Add libxl__sshm_del to unmap static shared memory areas mapped by libxl__sshm_add during domain creation. The unmapping process is: * For a master: decrease the refcount of the sshm region, if the

Re: [Xen-devel] Xen PV: Sample new PV driver for buffer sharing between domains

On 09/27/2018 01:16 PM, Juergen Gross wrote: On 27/09/2018 12:07, Oleksandr Andrushchenko wrote: Hi, On 09/27/2018 12:39 PM, Lars Kurth wrote: Adding a few people who have recently been working on PV drivers, as well as Julien Lars On 27 Sep 2018, at 06:44, Omkar Bolla mailto:omkar.bo

Re: [Xen-devel] Xen PV: Sample new PV driver for buffer sharing between domains

Hi, On 09/27/2018 12:39 PM, Lars Kurth wrote: Adding a few people who have recently been working on PV drivers, as well as Julien Lars On 27 Sep 2018, at 06:44, Omkar Bolla > wrote: Hi, I am using Debian as Domain-0 and Debian as Domain-U on Hikey960

Re: [Xen-devel] [PATCH] ALSA: xen-front: Refine indentations and constify snd_pcm_ops

= alsa_trigger, + .pointer= alsa_pointer, + .copy_user = alsa_cap_copy_user, + .copy_kernel= alsa_cap_copy_kernel, }; static int new_pcm_instance(struct xen_snd_front_card_info *card_info, Thank you for the patch, Reviewed-by: Oleksandr Andrushchenko

Re: [Xen-devel] [PATCH v2 1/1] cameraif: add ABI for para-virtual camera

On 09/12/2018 05:38 PM, Hans Verkuil wrote: On 09/12/18 16:15, Oleksandr Andrushchenko wrote: On 09/12/2018 04:38 PM, Hans Verkuil wrote: On 09/12/18 15:02, Oleksandr Andrushchenko wrote: On 09/12/2018 03:25 PM, Hans Verkuil wrote: + * formats + * Values: + * + * Formats

Re: [Xen-devel] [PATCH v2 1/1] cameraif: add ABI for para-virtual camera

On 09/12/2018 04:38 PM, Hans Verkuil wrote: On 09/12/18 15:02, Oleksandr Andrushchenko wrote: On 09/12/2018 03:25 PM, Hans Verkuil wrote: + * formats + * Values: + * + * Formats are organized as a set of directories one per each + * supported pixel format. The name

Re: [Xen-devel] [PATCH v2 1/1] cameraif: add ABI for para-virtual camera

On 09/12/2018 03:25 PM, Hans Verkuil wrote: On 09/12/18 12:09, Oleksandr Andrushchenko wrote: Hi, Hans! Thank you for valuable comments and valid concerns! On 09/12/2018 10:52 AM, Hans Verkuil wrote: On 09/11/2018 10:29 AM, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko

Re: [Xen-devel] [PATCH v2 1/1] cameraif: add ABI for para-virtual camera

On 09/12/2018 12:16 PM, Hans Verkuil wrote: On 09/11/18 10:29, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko This is the ABI for the two halves of a para-virtualized camera driver which extends Xen's reach multimedia capabilities even farther enabling it for video conferencing

Re: [Xen-devel] [PATCH v2 1/1] cameraif: add ABI for para-virtual camera

Hi, Hans! Thank you for valuable comments and valid concerns! On 09/12/2018 10:52 AM, Hans Verkuil wrote: On 09/11/2018 10:29 AM, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko This is the ABI for the two halves of a para-virtualized camera driver which extends Xen's reach

[Xen-devel] [PATCH v2 0/1] cameraif: add ABI for para-virtual camera

From: Oleksandr Andrushchenko Hello! At the moment Xen [1] already supports some virtual multimedia features [2] such as virtual display, sound. It supports keyboards, pointers and multi-touch devices all allowing Xen to be used in automotive appliances, In-Vehicle Infotainment (IVI) systems

Re: [Xen-devel] [PATCH 1/1] cameraif: add ABI for para-virtual camera

On 09/11/2018 10:52 AM, Hans Verkuil wrote: On 09/11/18 09:14, Oleksandr Andrushchenko wrote: On 09/11/2018 10:04 AM, Hans Verkuil wrote: On 09/11/2018 08:52 AM, Oleksandr Andrushchenko wrote: Hi, Hans! On 09/10/2018 03:26 PM, Hans Verkuil wrote: On 09/10/2018 01:49 PM, Oleksandr

Re: [Xen-devel] [PATCH 1/1] cameraif: add ABI for para-virtual camera

On 09/11/2018 10:04 AM, Hans Verkuil wrote: On 09/11/2018 08:52 AM, Oleksandr Andrushchenko wrote: Hi, Hans! On 09/10/2018 03:26 PM, Hans Verkuil wrote: On 09/10/2018 01:49 PM, Oleksandr Andrushchenko wrote: On 09/10/2018 02:09 PM, Hans Verkuil wrote: On 09/10/2018 11:52 AM, Oleksandr

Re: [Xen-devel] [PATCH 1/1] cameraif: add ABI for para-virtual camera

Hi, Hans! On 09/10/2018 03:26 PM, Hans Verkuil wrote: On 09/10/2018 01:49 PM, Oleksandr Andrushchenko wrote: On 09/10/2018 02:09 PM, Hans Verkuil wrote: On 09/10/2018 11:52 AM, Oleksandr Andrushchenko wrote: On 09/10/2018 12:04 PM, Hans Verkuil wrote: On 09/10/2018 10:24 AM, Oleksandr

Re: [Xen-devel] [PATCH 1/1] cameraif: add ABI for para-virtual camera

On 09/10/2018 03:26 PM, Hans Verkuil wrote: On 09/10/2018 01:49 PM, Oleksandr Andrushchenko wrote: On 09/10/2018 02:09 PM, Hans Verkuil wrote: On 09/10/2018 11:52 AM, Oleksandr Andrushchenko wrote: On 09/10/2018 12:04 PM, Hans Verkuil wrote: On 09/10/2018 10:24 AM, Oleksandr Andrushchenko

Re: [Xen-devel] [PATCH 0/1] cameraif: Add ABI for para-virtualized

Hi, Laurent! On 09/10/2018 03:48 PM, Laurent Pinchart wrote: Hi Oleksandr, Thank you for the patch. On Tuesday, 31 July 2018 12:31:41 EEST Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko Hello! At the moment Xen [1] already supports some virtual multimedia features [2

Re: [Xen-devel] [PATCH 1/1] cameraif: add ABI for para-virtual camera

On 09/10/2018 02:09 PM, Hans Verkuil wrote: On 09/10/2018 11:52 AM, Oleksandr Andrushchenko wrote: On 09/10/2018 12:04 PM, Hans Verkuil wrote: On 09/10/2018 10:24 AM, Oleksandr Andrushchenko wrote: On 09/10/2018 10:53 AM, Hans Verkuil wrote: Hi Oleksandr, On 09/10/2018 09:16 AM, Oleksandr

Re: [Xen-devel] [PATCH 1/1] cameraif: add ABI for para-virtual camera

On 09/10/2018 12:04 PM, Hans Verkuil wrote: On 09/10/2018 10:24 AM, Oleksandr Andrushchenko wrote: On 09/10/2018 10:53 AM, Hans Verkuil wrote: Hi Oleksandr, On 09/10/2018 09:16 AM, Oleksandr Andrushchenko wrote: I suspect that you likely will want to support such sources eventually, so

Re: [Xen-devel] [PATCH 1/1] cameraif: add ABI for para-virtual camera

On 09/10/2018 11:14 AM, Hans Verkuil wrote: On 09/10/2018 07:59 AM, Oleksandr Andrushchenko wrote: Hi, Hans! On 09/09/2018 01:42 PM, Hans Verkuil wrote: On 09/04/2018 08:56 AM, Oleksandr Andrushchenko wrote: On 09/03/2018 06:25 PM, Hans Verkuil wrote: Hi Oleksandr, On 09/03/2018 12:16 PM

Re: [Xen-devel] [PATCH 1/1] cameraif: add ABI for para-virtual camera

On 09/10/2018 10:53 AM, Hans Verkuil wrote: Hi Oleksandr, On 09/10/2018 09:16 AM, Oleksandr Andrushchenko wrote: Hi, Hans! On 09/09/2018 01:31 PM, Hans Verkuil wrote: Hi Oleksandr, Sorry for the delay in reviewing, I missed this patch until you pinged me, and I was very busy after

Re: [Xen-devel] [PATCH 1/1] cameraif: add ABI for para-virtual camera

Hi, Hans! On 09/09/2018 01:31 PM, Hans Verkuil wrote: Hi Oleksandr, Sorry for the delay in reviewing, I missed this patch until you pinged me, and I was very busy after that as well. I do appreciate you spending time on this! On 07/31/2018 11:31 AM, Oleksandr Andrushchenko wrote: From

Re: [Xen-devel] [PATCH 1/1] cameraif: add ABI for para-virtual camera

Hi, Hans! On 09/09/2018 01:42 PM, Hans Verkuil wrote: On 09/04/2018 08:56 AM, Oleksandr Andrushchenko wrote: On 09/03/2018 06:25 PM, Hans Verkuil wrote: Hi Oleksandr, On 09/03/2018 12:16 PM, Oleksandr Andrushchenko wrote: On 08/21/2018 08:54 AM, Oleksandr Andrushchenko wrote: On 08/14/2018

Re: [Xen-devel] [PATCH 1/1] cameraif: add ABI for para-virtual camera

On 09/03/2018 06:25 PM, Hans Verkuil wrote: Hi Oleksandr, On 09/03/2018 12:16 PM, Oleksandr Andrushchenko wrote: On 08/21/2018 08:54 AM, Oleksandr Andrushchenko wrote: On 08/14/2018 11:30 AM, Juergen Gross wrote: On 31/07/18 11:31, Oleksandr Andrushchenko wrote: From: Oleksandr

Re: [Xen-devel] [PATCH 1/1] cameraif: add ABI for para-virtual camera

On 08/21/2018 08:54 AM, Oleksandr Andrushchenko wrote: On 08/14/2018 11:30 AM, Juergen Gross wrote: On 31/07/18 11:31, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko This is the ABI for the two halves of a para-virtualized camera driver which extends Xen's reach multimedia

[Xen-devel] [PATCH v2] libgnttab: Add support for Linux dma-buf

From: Oleksandr Andrushchenko Add support for Linux grant device driver extension which allows converting existing dma-buf's into an array of grant references and vise versa. This is only implemented for Linux as other OSes have no Linux dma-buf support. Bump gnttab library minor version to 3

Re: [Xen-devel] [PATCH 1/1] cameraif: add ABI for para-virtual camera

On 08/14/2018 11:30 AM, Juergen Gross wrote: On 31/07/18 11:31, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko This is the ABI for the two halves of a para-virtualized camera driver which extends Xen's reach multimedia capabilities even farther enabling it for video conferencing

Re: [Xen-devel] [PATCH] libgnttab: Add support for Linux dma-buf

On 08/20/2018 05:40 PM, Wei Liu wrote: On Mon, Jul 23, 2018 at 03:27:25PM +0300, Oleksandr Andrushchenko wrote: [...] diff --git a/tools/libs/gnttab/linux.c b/tools/libs/gnttab/linux.c index 8347ddd3d9cf..9765146f7eb6 100644 --- a/tools/libs/gnttab/linux.c +++ b/tools/libs/gnttab/linux.c

Re: [Xen-devel] [PATCH] libgnttab: Add support for Linux dma-buf

ping On 07/23/2018 03:27 PM, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko Add support for Linux grant device driver extension which allows converting existing dma-buf's into an array of grant references and vise versa. This is only implemented for Linux as other OSes have

[Xen-devel] [PATCH 0/1] cameraif: Add ABI for para-virtualized

From: Oleksandr Andrushchenko Hello! At the moment Xen [1] already supports some virtual multimedia features [2] such as virtual display, sound. It supports keyboards, pointers and multi-touch devices all allowing Xen to be used in automotive appliances, In-Vehicle Infotainment (IVI) systems

[Xen-devel] [PATCH 1/1] cameraif: add ABI for para-virtual camera

From: Oleksandr Andrushchenko This is the ABI for the two halves of a para-virtualized camera driver which extends Xen's reach multimedia capabilities even farther enabling it for video conferencing, In-Vehicle Infotainment, high definition maps etc. The initial goal is to support most needed

Re: [Xen-devel] linux-next: build failure after merge of the xen-tip tree

From: Stephen Rothwell Date: Mon, 30 Jul 2018 15:08:21 +1000 Subject: [PATCH] xen/gntdev: fix up for attach callback API change Signed-off-by: Stephen Rothwell Thank you for your patch, Reviewed-by: Oleksandr Andrushchenko ___ Xen-devel mailing

Re: [Xen-devel] [PATCH] libgnttab: Add support for Linux dma-buf

On 07/25/2018 12:39 PM, Wei Liu wrote: On Mon, Jul 23, 2018 at 03:27:25PM +0300, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko Add support for Linux grant device driver extension which allows converting existing dma-buf's into an array of grant references and vise versa

Re: [Xen-devel] [PATCH 10/10] ALSA: xen: Use standard pcm_format_to_bits() for ALSA format bits

ATS); i++) if (1 << ALSA_SNDIF_FORMATS[i].sndif & sndif_formats) - mask |= 1 << ALSA_SNDIF_FORMATS[i].alsa; + mask |= pcm_format_to_bits(ALSA_SNDIF_FORMATS[i].alsa); return mask; } Thank you for your patch, Reviewed-by

Re: [Xen-devel] [PATCH] libgnttab: Add support for Linux dma-buf

On 07/25/2018 12:53 PM, Wei Liu wrote: On Wed, Jul 25, 2018 at 12:49:29PM +0300, Oleksandr Andrushchenko wrote: On 07/25/2018 12:39 PM, Wei Liu wrote: On Mon, Jul 23, 2018 at 03:27:25PM +0300, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko Add support for Linux grant device

Re: [Xen-devel] [PATCH] libgnttab: Add support for Linux dma-buf

On 07/25/2018 12:39 PM, Wei Liu wrote: On Mon, Jul 23, 2018 at 03:27:25PM +0300, Oleksandr Andrushchenko wrote: From: Oleksandr Andrushchenko Add support for Linux grant device driver extension which allows converting existing dma-buf's into an array of grant references and vise versa

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