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* ui: add an optional get_flags callback to GraphicHwOpsMarc-André Lureau2021-02-041-0/+6
| | | | | | | | | Those flags can be used to express different requirements for the display or other needs. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20210204105232.834642-12-marcandre.lureau@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
* Remove superfluous timer_del() callsPeter Maydell2021-01-081-1/+0Star
| | | | | | | | | | | | This commit is the result of running the timer-del-timer-free.cocci script on the whole source tree. Signed-off-by: Peter Maydell <peter.maydell@linaro.org> Acked-by: Corey Minyard <cminyard@mvista.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Message-id: 20201215154107.3255-4-peter.maydell@linaro.org
* vfio: fix use-after-free in displayGerd Hoffmann2020-07-161-0/+1
| | | | | | | | | | | | | | | Calling ramfb_display_update() might replace the DisplaySurface with the boot display, which in turn will free the currently active DisplaySurface. So clear our DisplaySurface pinter (dpy->region.surface pointer) to (a) avoid use-after-free and (b) force replacing the boot display with the real display when switching back. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Alex Williamson <alex.williamson@redhat.com> Acked-by: Alex Williamson <alex.williamson@redhat.com> Message-id: 20200713124520.23266-1-kraxel@redhat.com
* Revert "hw/display/ramfb: initialize fw-config space with xres/ yres"Gerd Hoffmann2020-05-181-2/+2
| | | | | | | | | | | | | | This reverts commit f79081b4b71b72640bedd40a7cd76f864c8287f1. Patch has broken byteorder handling: RAMFBCfg fields are in bigendian byteorder, the reset function doesn't care so native byteorder is used instead. Given this went unnoticed so far the feature is obviously unused, so just revert the patch. Cc: Hou Qiming <hqm03ster@gmail.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Acked-by: Laszlo Ersek <lersek@redhat.com> Message-id: 20200429115236.28709-2-kraxel@redhat.com
* hw/vfio/display: Remove superfluous semicolonPhilippe Mathieu-Daudé2020-02-181-1/+1
| | | | | | | | | | Fixes: 8b818e059bf Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com> Reviewed-by: Juan Quintela <quintela@redhat.com> Message-Id: <20200218094402.26625-9-philmd@redhat.com> Signed-off-by: Laurent Vivier <laurent@vivier.eu>
* vfio/display: set dmabuf modifier fieldGerd Hoffmann2019-06-071-0/+1
| | | | | | | | | 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
* hw/display/ramfb: initialize fw-config space with xres/ yresHou Qiming2019-05-241-2/+2
| | | | | | | | | | | | | 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>
* vfio/display: delay link up eventGerd Hoffmann2019-03-111-5/+25
| | | | | | | | | | 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>
* vfio/display: add xres + yres propertiesGerd Hoffmann2019-03-111-2/+10
| | | | | | | | | | 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>
* vfio/display: add edid support.Gerd Hoffmann2019-03-111-0/+141
| | | | | | | | | | | | | 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>
* hw/vfio/display: add ramfb supportGerd Hoffmann2018-10-151-0/+12
| | | | | | | | | | | | | | | | | 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>
* ui: introduce vfio_display_resetTina Zhang2018-04-271-0/+11
| | | | | | | | | | | | | | | | | | | | | | | | | | | | 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>
* vfio/display: adding dmabuf supportGerd Hoffmann2018-03-131-2/+180
| | | | | | | Wire up dmabuf-based display. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
* vfio/display: adding region supportGerd Hoffmann2018-03-131-2/+115
| | | | | | | | 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>
* vfio/display: core & wireupGerd Hoffmann2018-03-131-0/+56
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>
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