This patch adds edid support to the qemu stdvga.  It is turned off by
default and can be enabled with the new edid property.  The patch also
adds xres and yres properties to specify the video mode you want the
guest use.  Works only with edid enabled and updated guest driver.

The mmio bar of the stdvga has some unused address space at the start.
It was reserved just in case it'll be needed for virtio, but it turned
out to not be needed for that.  So let's use that region to place the
EDID data block there.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Message-id: 20180925075646.25114-6-kraxel@redhat.com

This reverts commit 93f874fe.

Now with virtio-vga being resetted properly the
crash workaround is not needed any more.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20180821111313.27792-3-kraxel@redhat.com

We must call the reset functions for both virtio-gpu
and vga to properly reset the combo device.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 20180821111313.27792-2-kraxel@redhat.com

With vga=775 on the Linux command line a first boot of the VM running
Linux works fine. After a warm reboot it crashes during Linux boot.

Before that, valgrind points out bad memory write to console
surface. The VGA code is not aware that virtio-gpu got a message
surface scanout when the display is disabled. Let's reset VGA graphic
mode when it is the case, so that a new display surface is created
when doing further VGA operations.

https://bugs.launchpad.net/qemu/+bug/1784900/Reported-by: NStefan Berger <stefanb@linux.vnet.ibm.com>
Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: NGerd Hoffmann <kraxel@redhat.com>
Tested-by: NStefan Berger <stefanb@linux.vnet.ibm.com>
Message-id: 20180803153235.4134-1-marcandre.lureau@redhat.com
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>

Move global_vmstate from vga_common_init() parameter to VGACommonState
field.  Set global_vmstate to true for isa vga devices, so nothing
changes here.  virtio-vga and secondary-vga already set global_vmstate
to false so no change here either.  All other pci vga devices get a new
global-vmstate property, defaulting to false.  A compat property flips
it to true for older machine types.

With this in place you don't get a vmstate section naming conflict any
more when adding multiple pci vga devices to your vm.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Message-Id: <20180702163345.17892-1-kraxel@redhat.com>

This makes sure the regions are properly cleaned when unplugging -device
seconday-vga.
Reported-by: NThomas Huth <thuth@redhat.com>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Reviewed-by: NThomas Huth <thuth@redhat.com>
Reviewed-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: NThomas Huth <thuth@redhat.com>
Message-id: 20180626060941.8326-1-kraxel@redhat.com

since The VGACommonState struct has a GraphicHwOps *hw_ops member,
then remove the now unnecessary includes.
Signed-off-by: NPhilippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: NThomas Huth <thuth@redhat.com>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

the bar index names are much similar to the bar memory regions,
distinguish them to improve the code readability.
Signed-off-by: NChen Fan <fan.chen@easystack.cn>
Signed-off-by: NMichael Tokarev <mjt@tls.msk.ru>

Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Message-id: 1473319012-27560-1-git-send-email-kraxel@redhat.com

Enable transitional virtio devices by default.
Enable virtio-1.0 for devices plugged into
PCIe ports (Root ports or Downstream ports).

Using the virtio-1 mode will remove the limitation
of the number of devices that can be attached to a machine
by removing the need for the IO BAR.
Signed-off-by: NMarcel Apfelbaum <marcel@redhat.com>
Reviewed-by: NMichael S. Tsirkin <mst@redhat.com>
Signed-off-by: NMichael S. Tsirkin <mst@redhat.com>
Reviewed-by: NCornelia Huck <cornelia.huck@de.ibm.com>

Store some additional state for cursor and resource backing storage,
so we can write out and reload things.  Implement vmsave+vmload for
2d mode.  Continue blocking live migration in 3d/virgl mode.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>
Message-id: 1464009727-7753-1-git-send-email-kraxel@redhat.com

Signed-off-by: NMarc-André Lureau <marcandre.lureau@redhat.com>
Message-id: 1463653560-26958-3-git-send-email-marcandre.lureau@redhat.com
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Wire up gl_block callback, so ui code can request to stop
virtio-gpu rendering.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Clean up includes so that osdep.h is included first and headers
which it implies are not included manually.

This commit was created with scripts/clean-includes.
Signed-off-by: NPeter Maydell <peter.maydell@linaro.org>
Message-id: 1453832250-766-15-git-send-email-peter.maydell@linaro.org

Switch over to virtio_instance_init_common.  Drop duplicate properties
in virtio-gpu-pci and virtio-vga as they are properly aliased now.  Also
drop the indirection via DEFINE_VIRTIO_GPU_PROPERTIES, we don't need it
any more as the properties are defined in a single place now.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

Update the device link of the QemuConsole, so it points to the
virtio-gpu-pci or virtio-vga device instead of virtio-gpu-device.

This is needed because we want to find the device by id, for
example for input routing, and the id specified on the command
line is attached to the pci proxy, not the virtio device.
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>

This patch adds a virtio-vga device.  It is simliar to virtio-gpu-pci,
but it also adds in vga compatibility, so guests without native
virtio-gpu support can drive the device in vga mode.  It is compatible
with stdvga.

Written by Dave Airlie and Gerd Hoffmann.
Signed-off-by: NDave Airlie <airlied@redhat.com>
Signed-off-by: NGerd Hoffmann <kraxel@redhat.com>