Commit Graph

10 Commits

Author SHA1 Message Date
Gerd Hoffmann a6c9d5da08 vfio/display: set dmabuf modifier field
Fill the new QemuDmaBuf->modifier field properly from plane info.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Acked-by: Alex Williamson <alex.williamson@redhat.com>
Message-id: 20190529072144.26737-3-kraxel@redhat.com
2019-06-07 11:52:35 +02:00
Hou Qiming f79081b4b7 hw/display/ramfb: initialize fw-config space with xres/ yres
If xres / yres were specified in QEMU command line, write them as an initial
resolution to the fw-config space on guest reset, which a later BIOS / OVMF
patch can take advantage of.

Signed-off-by: HOU Qiming <hqm03ster@gmail.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-id: 20190513115731.17588-4-marcel.apfelbaum@gmail.com
[fixed malformed patch]
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2019-05-24 09:10:29 +02:00
Gerd Hoffmann 8781c70144 vfio/display: delay link up event
Kick the display link up event with a 0.1 sec delay,
so the guest has a chance to notice the link down first.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
[update for redefined macro]
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2019-03-11 12:59:59 -06:00
Gerd Hoffmann c62a0c7ce3 vfio/display: add xres + yres properties
This allows configure the display resolution which the vgpu should use.
The information will be passed to the guest using EDID, so the mdev
driver must support the vfio edid region for this to work.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2019-03-11 12:59:59 -06:00
Gerd Hoffmann 08479114b0 vfio/display: add edid support.
This patch adds EDID support to the vfio display (aka vgpu) code.
When supported by the mdev driver qemu will generate a EDID blob
and pass it on using the new vfio edid region.  The EDID blob will
be updated on UI changes (i.e. window resize), so the guest can
adapt.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Liam Merwick <liam.merwick@oracle.com>
[remove control flow via macro, use unsigned format specifier]
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2019-03-11 12:59:59 -06:00
Gerd Hoffmann b290659fc3 hw/vfio/display: add ramfb support
So we have a boot display when using a vgpu as primary display.

ramfb depends on a fw_cfg file.  fw_cfg files can not be added and
removed at runtime, therefore a ramfb-enabled vfio device can't be
hotplugged.

Add a nohotplug variant of the vfio-pci device (as child class).  Add
the ramfb property to the nohotplug variant only.  So to enable the vgpu
display with boot support use this:

  -device vfio-pci-nohotplug,display=on,ramfb=on,sysfsdev=...

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2018-10-15 10:52:09 -06:00
Tina Zhang 8983e3e350 ui: introduce vfio_display_reset
During guest OS reboot, guest framebuffer is invalid. It will cause
bugs, if the invalid guest framebuffer is still used by host.

This patch is to introduce vfio_display_reset which is invoked
during vfio display reset. This vfio_display_reset function is used
to release the invalid display resource, disable scanout mode and
replace the invalid surface with QemuConsole's DisplaySurafce.

This patch can fix the GPU hang issue caused by gd_egl_draw during
guest OS reboot.

Changes v3->v4:
 - Move dma-buf based display check into the vfio_display_reset().
   (Gerd)

Changes v2->v3:
 - Limit vfio_display_reset to dma-buf based vfio display. (Gerd)

Changes v1->v2:
 - Use dpy_gfx_update_full() update screen after reset. (Gerd)
 - Remove dpy_gfx_switch_surface(). (Gerd)

Signed-off-by: Tina Zhang <tina.zhang@intel.com>
Message-id: 1524820266-27079-3-git-send-email-tina.zhang@intel.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2018-04-27 11:36:34 +02:00
Gerd Hoffmann 8b818e059b vfio/display: adding dmabuf support
Wire up dmabuf-based display.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2018-03-13 11:17:30 -06:00
Gerd Hoffmann 00195ba710 vfio/display: adding region support
Wire up region-based display.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed By: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2018-03-13 11:17:30 -06:00
Gerd Hoffmann a9994687cb vfio/display: core & wireup
Infrastructure for display support.  Must be enabled
using 'display' property.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed By: Kirti Wankhede <kwankhede@nvidia.com>
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
2018-03-13 11:17:29 -06:00