qemu/hw/vfio
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
..
amd-xgbe.c qdev: use device_class_set_parent_realize/unrealize/reset() 2018-02-05 13:54:38 +01:00
calxeda-xgmac.c qdev: use device_class_set_parent_realize/unrealize/reset() 2018-02-05 13:54:38 +01:00
ccw.c vfio-ccw: fix memory leaks in vfio_ccw_realize() 2018-04-09 13:50:31 +02:00
common.c vfio: Use a trace point when a RAM section cannot be DMA mapped 2018-04-05 10:48:52 -06:00
display.c ui: introduce vfio_display_reset 2018-04-27 11:36:34 +02:00
Makefile.objs vfio/display: core & wireup 2018-03-13 11:17:29 -06:00
pci-quirks.c vfio/pci: Add option to disable GeForce quirks 2018-02-06 11:08:27 -07:00
pci.c ui: introduce vfio_display_reset 2018-04-27 11:36:34 +02:00
pci.h ui: introduce vfio_display_reset 2018-04-27 11:36:34 +02:00
platform.c use g_path_get_basename instead of basename 2018-03-06 14:01:29 +01:00
spapr.c vfio, spapr: Fix levels calculation 2017-09-15 10:29:48 +10:00
trace-events vfio: Use a trace point when a RAM section cannot be DMA mapped 2018-04-05 10:48:52 -06:00