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path: root/hw/display/virtio-gpu.c
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2016-06-06virtio-gpu: add live migration supportGerd Hoffmann
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: Gerd Hoffmann <kraxel@redhat.com> Message-id: 1464009727-7753-1-git-send-email-kraxel@redhat.com
2016-06-03virtio-gpu: fix scanout rectanglesGerd Hoffmann
Commit "ca58b45 ui/virtio-gpu: add and use qemu_create_displaysurface_pixman" breaks scanouts which use a region of the underlying resource only. So, we need another way to handle the underlying issue. Lets create a new pixman image, grab a reference on the pixman providing the underlying storage, hook up a destroy callback which releases the reference. That way regions work again and releasing the backing storage should still be impossible thanks to the extra reference we are holding. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 1464597655-26341-1-git-send-email-kraxel@redhat.com
2016-05-23virtio-gpu: fix ui idx checkMarc-André Lureau
Fix off-by-one value check (0 is the first scanout). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 1463653560-26958-7-git-send-email-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-05-23virtio-gpu: use VIRTIO_GPU_MAX_SCANOUTSMarc-André Lureau
The value is defined in virtio_gpu.h already (changing from 4 to 16). Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 1463653560-26958-6-git-send-email-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-05-23virtio-gpu: check max_outputs onlyMarc-André Lureau
The scanout id should not be above the configured num_scanouts. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 1463653560-26958-5-git-send-email-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-05-23virtio-gpu: check max_outputs valueMarc-André Lureau
The value must be less than VIRTIO_GPU_MAX_SCANOUT. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 1463653560-26958-4-git-send-email-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-05-23virtio-gpu: check early scanout idMarc-André Lureau
Before accessing the g->scanout array, in order to avoid potential out-of-bounds access. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-id: 1463653560-26958-2-git-send-email-marcandre.lureau@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-05-19hw: explicitly include qemu/log.hPaolo Bonzini
Move the inclusion out of hw/hw.h, most files do not need it. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2016-04-11virtio-gpu: block live migrationGerd Hoffmann
Feeling a bit nervous putting the full live migration support patch (https://patchwork.ozlabs.org/patch/606902/) in that late in the 2.6 devel cycle as it carries some non-trivial changes. So disable migration in case virtio-gpu is present for now. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-04-11ui/virtio-gpu: add and use qemu_create_displaysurface_pixmanGerd Hoffmann
Add a the new qemu_create_displaysurface_pixman function, to create a DisplaySurface backed by an existing pixman image. In that case there is no need to create a new pixman image pointing to the same backing storage. We can just use the existing image directly. This does not only simplify things a bit, but most importantly it gets the reference counting right, so the backing storage for the pixman image wouldn't be released underneath us. Use new function in virtio-gpu, where using it actually fixes use-after-free crashes. Cc: qemu-stable@nongnu.org Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Message-id: 1459499240-742-1-git-send-email-kraxel@redhat.com
2016-02-06virtio: move allocation to virtqueue_pop/vring_popPaolo Bonzini
The return code of virtqueue_pop/vring_pop is unused except to check for errors or 0. We can thus easily move allocation inside the functions and just return a pointer to the VirtQueueElement. The advantage is that we will be able to allocate only the space that is needed for the actual size of the s/g list instead of the full VIRTQUEUE_MAX_SIZE items. Currently VirtQueueElement takes about 48K of memory, and this kind of allocation puts a lot of stress on malloc. By cutting the size by two or three orders of magnitude, malloc can use much more efficient algorithms. The patch is pretty large, but changes to each device are testable more or less independently. Splitting it would mostly add churn. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
2016-02-03virtio-gpu: block any rendering until client (ui) is doneGerd Hoffmann
Wire up gl_block callback, so ui code can request to stop virtio-gpu rendering. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-02-03virtio-gpu: add support to enable/disable command processingGerd Hoffmann
So we can stop rendering for a while in case we have to. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2016-02-03virtio-gpu: maintain command queueGerd Hoffmann
We'll go take out the commands we receive out of the virt queue and put them into a linked list, to decouple virtio queue handling from actual command processing. Also move cmd processing to new virtio_gpu_handle_ctrl func, so we can easily kick it from different places. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2016-01-29virtio: Clean up includesPeter Maydell
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: Peter Maydell <peter.maydell@linaro.org> Message-id: 1453832250-766-15-git-send-email-peter.maydell@linaro.org
2015-12-17linux-headers: update from kvm/nextPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2015-10-08virtio-gpu: add cursor update tracepointGerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2015-10-08virtio-gpu: add 3d mode and virgl rendering support.Gerd Hoffmann
Add virglrenderer library detection. Add 3d mode to virtio-gpu, wire up virglrenderer library. When in 3d mode render using the new context management and texture scanout callbacks. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2015-10-08virtio-gpu: change licence from GPLv2 to GPLv2+Gerd Hoffmann
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-10-08virtio-gpu: move iov free to virtio_gpu_cleanup_mapping_iovGerd Hoffmann
For symmetry reasons: virtio_gpu_create_mapping_iov() allocates it so virtio_gpu_cleanup_mapping_iov() should free it, otherwise it's easy to miss a free() needed and leak memory. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Reviewed-by: Max Reitz <mreitz@redhat.com>
2015-07-27virtio: get_features() can failJason Wang
Signed-off-by: Jason Wang <jasowang@redhat.com> Reviewed-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Acked-by: Paolo Bonzini <pbonzini@redhat.com>
2015-07-07virtio-gpu: use virtio_instance_init_common, fixup propertiesGerd Hoffmann
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: Gerd Hoffmann <kraxel@redhat.com>
2015-06-12virtio-gpu: fix error messageGerd Hoffmann
iov limit was raised, but the error message still has the old limit ... Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2015-06-10virtio-gpu/2d: add virtio gpu core codeGerd Hoffmann
This patch adds the core code for virtio gpu emulation, covering 2d support. Written by Dave Airlie and Gerd Hoffmann. Signed-off-by: Dave Airlie <airlied@redhat.com> Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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