[RFC PATCH 08/13] gfxstream + rutabaga prep: added need defintions, fields, and options

[Gurchetan Singh <gurchetansingh@chromium.org>]

This modifies the common virtio-gpu.h file have the fields and
defintions needed by gfxstream/rutabaga.  It also modifies VirtioGPUGL
to have the runtime options needed by rutabaga.  They are:

- a colon separated list of capset names, defined in the virtio spec
- a wayland socket path to enable guest Wayland passthrough

The command to run these would be:

-device virtio-vga-gl,capset_names=gfxstream:cross-domain, \
        wayland_socket_path=/run/user/1000/wayland-0,hostmem=8G  \

Signed-off-by: Gurchetan Singh <gurchetansingh@chromium.org>
---
 hw/display/virtio-gpu-gl.c     | 2 ++
 include/hw/virtio/virtio-gpu.h | 8 ++++++++
 2 files changed, 10 insertions(+)

diff --git a/hw/display/virtio-gpu-gl.c b/hw/display/virtio-gpu-gl.c
index 547e697333..15270b0c8a 100644
--- a/hw/display/virtio-gpu-gl.c
+++ b/hw/display/virtio-gpu-gl.c
@@ -29,6 +29,8 @@ static void virtio_gpu_gl_device_realize(DeviceState *qdev, Error **errp)
 static Property virtio_gpu_gl_properties[] = {
     DEFINE_PROP_BIT("stats", VirtIOGPU, parent_obj.conf.flags,
                     VIRTIO_GPU_FLAG_STATS_ENABLED, false),
+    DEFINE_PROP_STRING("capset_names", VirtIOGPUGL, capset_names),
+    DEFINE_PROP_STRING("wayland_socket_path", VirtIOGPUGL, wayland_socket_path),
     DEFINE_PROP_END_OF_LIST(),
 };
 
diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h
index 421733d751..a35ade3608 100644
--- a/include/hw/virtio/virtio-gpu.h
+++ b/include/hw/virtio/virtio-gpu.h
@@ -94,6 +94,7 @@ enum virtio_gpu_base_conf_flags {
     VIRTIO_GPU_FLAG_DMABUF_ENABLED,
     VIRTIO_GPU_FLAG_BLOB_ENABLED,
     VIRTIO_GPU_FLAG_CONTEXT_INIT_ENABLED,
+    VIRTIO_GPU_FLAG_RUTABAGA_ENABLED,
 };
 
 #define virtio_gpu_virgl_enabled(_cfg) \
@@ -106,6 +107,8 @@ enum virtio_gpu_base_conf_flags {
     (_cfg.flags & (1 << VIRTIO_GPU_FLAG_DMABUF_ENABLED))
 #define virtio_gpu_blob_enabled(_cfg) \
     (_cfg.flags & (1 << VIRTIO_GPU_FLAG_BLOB_ENABLED))
+#define virtio_gpu_rutabaga_enabled(_cfg) \
+    (_cfg.flags & (1 << VIRTIO_GPU_FLAG_RUTABAGA_ENABLED))
 #define virtio_gpu_hostmem_enabled(_cfg) \
     (_cfg.hostmem > 0)
 #define virtio_gpu_context_init_enabled(_cfg) \
@@ -217,6 +220,11 @@ struct VirtIOGPUGL {
 
     bool renderer_inited;
     bool renderer_reset;
+
+    char *capset_names;
+    char *wayland_socket_path;
+    uint32_t num_capsets;
+    void *rutabaga;
 };
 
 struct VhostUserGPU {
-- 
2.40.0.634.g4ca3ef3211-goog