Re: [Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

Hi, > These are both from Gerd.  Gerd, do you have any objection to using a > union to provide either the dmabuf fd or region index? No. > > It's like we want to propose a general interface used to share > > guest's buffer with host. And the > > general interface, so far, has two choice:

Re: [Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

On Wed, 9 Aug 2017 08:31:00 + "Zhang, Tina" wrote: > > -Original Message- > > From: intel-gvt-dev [mailto:intel-gvt-dev-boun...@lists.freedesktop.org] On > > Behalf Of Alex Williamson > > Sent: Tuesday, August 8, 2017 1:43 AM > > To: Zhang, Tina

Re: [Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

On 8/8/2017 11:37 PM, Alex Williamson wrote: > On Tue, 8 Aug 2017 14:18:07 +0530 > Kirti Wankhede wrote: > >> On 8/7/2017 11:13 PM, Alex Williamson wrote: >>> On Mon, 7 Aug 2017 08:11:43 + >>> "Zhang, Tina" wrote: >>> After going through

Re: [Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

> -Original Message- > From: intel-gvt-dev [mailto:intel-gvt-dev-boun...@lists.freedesktop.org] On > Behalf Of Alex Williamson > Sent: Tuesday, August 8, 2017 1:43 AM > To: Zhang, Tina > Cc: Tian, Kevin ; intel-gfx@lists.freedesktop.org; dri-

Re: [Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

On Tue, 8 Aug 2017 14:18:07 +0530 Kirti Wankhede wrote: > On 8/7/2017 11:13 PM, Alex Williamson wrote: > > On Mon, 7 Aug 2017 08:11:43 + > > "Zhang, Tina" wrote: > > > >> After going through the previous discussions, here are some summaries may

Re: [Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

On 8/7/2017 11:13 PM, Alex Williamson wrote: > On Mon, 7 Aug 2017 08:11:43 + > "Zhang, Tina" wrote: > >> After going through the previous discussions, here are some summaries may be >> related to the current discussion: >> 1. How does user mode figure the device

Re: [Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

On Mon, 7 Aug 2017 08:11:43 + "Zhang, Tina" wrote: > After going through the previous discussions, here are some summaries may be > related to the current discussion: > 1. How does user mode figure the device capabilities between region and > dma-buf? >

Re: [Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

After going through the previous discussions, here are some summaries may be related to the current discussion: 1. How does user mode figure the device capabilities between region and dma-buf? VFIO_DEVICE_GET_REGION_INFO could tell if the mdev supports region case. Otherwise, the mdev supports

Re: [Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

> -Original Message- > From: dri-devel [mailto:dri-devel-boun...@lists.freedesktop.org] On Behalf Of > Alex Williamson > Sent: Thursday, August 3, 2017 10:43 PM > To: Zhang, Tina > Cc: Tian, Kevin ; intel-gfx@lists.freedesktop.org; dri- >

Re: [Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

On Thu, 3 Aug 2017 07:08:15 + "Zhang, Tina" wrote: > > -Original Message- > > From: Alex Williamson [mailto:alex.william...@redhat.com] > > Sent: Thursday, August 3, 2017 11:38 AM > > To: Zhang, Tina > > Cc: Tian, Kevin

Re: [Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

> -Original Message- > From: Alex Williamson [mailto:alex.william...@redhat.com] > Sent: Thursday, August 3, 2017 11:38 AM > To: Zhang, Tina > Cc: Tian, Kevin ; intel-gfx@lists.freedesktop.org; dri- > de...@lists.freedesktop.org;

Re: [Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

On Thu, 3 Aug 2017 03:17:09 + "Zhang, Tina" wrote: > > -Original Message- > > From: dri-devel [mailto:dri-devel-boun...@lists.freedesktop.org] On Behalf > > Of > > Alex Williamson > > Sent: Wednesday, August 2, 2017 5:18 AM > > To: Zhang, Tina

Re: [Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

> -Original Message- > From: dri-devel [mailto:dri-devel-boun...@lists.freedesktop.org] On Behalf Of > Alex Williamson > Sent: Wednesday, August 2, 2017 5:18 AM > To: Zhang, Tina > Cc: Tian, Kevin ; kra...@redhat.com; intel- >

Re: [Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

On 8/2/2017 2:48 AM, Alex Williamson wrote: > On Tue, 25 Jul 2017 17:28:18 +0800 > Tina Zhang wrote: > >> Add VFIO_DEVICE_QUERY_GFX_PLANE ioctl command to let user mode query and >> get the plan and its related information. >> >> The dma-buf's life cycle is handled by

Re: [Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

On Tue, 25 Jul 2017 17:28:18 +0800 Tina Zhang wrote: > Add VFIO_DEVICE_QUERY_GFX_PLANE ioctl command to let user mode query and > get the plan and its related information. > > The dma-buf's life cycle is handled by user mode and tracked by kernel. > The returned fd in

Re: [Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

> -Original Message- > From: intel-gvt-dev [mailto:intel-gvt-dev-boun...@lists.freedesktop.org] On > Behalf Of Gerd Hoffmann > Sent: Friday, July 28, 2017 4:27 PM > To: Zhang, Tina ; intel-gfx@lists.freedesktop.org; > intel- > gvt-...@lists.freedesktop.org;

Re: [Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

Hi, > +/** > + * VFIO_DEVICE_QUERY_GFX_PLANE - _IOW(VFIO_TYPE, VFIO_BASE + 14, > struct vfio_device_query_gfx_plane) > + * > + * Set the drm_plane_type and retrieve information about the gfx > plane. + * > + * Return: 0 on success, -errno on failure. I think this should be more verbose,

[Intel-gfx] [PATCH v13 5/7] vfio: ABI for mdev display dma-buf operation

Add VFIO_DEVICE_QUERY_GFX_PLANE ioctl command to let user mode query and get the plan and its related information. The dma-buf's life cycle is handled by user mode and tracked by kernel. The returned fd in struct vfio_device_query_gfx_plane can be a new fd or an old fd of a re-exported dma-buf.