From 37f86af087397688c7de4ea4ddf05449d48e6ee0 Mon Sep 17 00:00:00 2001
From: Gerd Hoffmann <kraxel@redhat.com>
Date: Fri, 30 Apr 2021 13:35:34 +0200
Subject: [PATCH] virtio-gpu: move virgl realize + properties

Move device init (realize) and properties.

Drop the virgl property, the virtio-gpu-gl-device has virgl enabled no
matter what.  Just use virtio-gpu-device instead if you don't want
enable virgl and opengl.  This simplifies the logic and reduces the test
matrix.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Message-id: 20210430113547.1816178-1-kraxel@redhat.com
Message-Id: <20210430113547.1816178-4-kraxel@redhat.com>
---
 hw/display/virtio-gpu-gl.c     | 33 +++++++++++++++++++++++++++++++++
 hw/display/virtio-gpu.c        | 23 +----------------------
 include/hw/virtio/virtio-gpu.h |  1 +
 3 files changed, 35 insertions(+), 22 deletions(-)

diff --git a/hw/display/virtio-gpu-gl.c b/hw/display/virtio-gpu-gl.c
index a477cbe186..9b7b5f00d7 100644
--- a/hw/display/virtio-gpu-gl.c
+++ b/hw/display/virtio-gpu-gl.c
@@ -16,14 +16,47 @@
 #include "qemu/module.h"
 #include "qemu/error-report.h"
 #include "qapi/error.h"
+#include "sysemu/sysemu.h"
 #include "hw/virtio/virtio.h"
 #include "hw/virtio/virtio-gpu.h"
 #include "hw/virtio/virtio-gpu-bswap.h"
 #include "hw/virtio/virtio-gpu-pixman.h"
 #include "hw/qdev-properties.h"
 
+static void virtio_gpu_gl_device_realize(DeviceState *qdev, Error **errp)
+{
+    VirtIOGPU *g = VIRTIO_GPU(qdev);
+
+#if defined(HOST_WORDS_BIGENDIAN)
+    error_setg(errp, "virgl is not supported on bigendian platforms");
+    return;
+#endif
+
+    if (!display_opengl) {
+        error_setg(errp, "opengl is not available");
+        return;
+    }
+
+    g->parent_obj.conf.flags |= (1 << VIRTIO_GPU_FLAG_VIRGL_ENABLED);
+    VIRTIO_GPU_BASE(g)->virtio_config.num_capsets =
+        virtio_gpu_virgl_get_num_capsets(g);
+
+    virtio_gpu_device_realize(qdev, errp);
+}
+
+static Property virtio_gpu_gl_properties[] = {
+    DEFINE_PROP_BIT("stats", VirtIOGPU, parent_obj.conf.flags,
+                    VIRTIO_GPU_FLAG_STATS_ENABLED, false),
+    DEFINE_PROP_END_OF_LIST(),
+};
+
 static void virtio_gpu_gl_class_init(ObjectClass *klass, void *data)
 {
+    DeviceClass *dc = DEVICE_CLASS(klass);
+    VirtioDeviceClass *vdc = VIRTIO_DEVICE_CLASS(klass);
+
+    vdc->realize = virtio_gpu_gl_device_realize;
+    device_class_set_props(dc, virtio_gpu_gl_properties);
 }
 
 static const TypeInfo virtio_gpu_gl_info = {
diff --git a/hw/display/virtio-gpu.c b/hw/display/virtio-gpu.c
index 6f3791deb3..461b7769b4 100644
--- a/hw/display/virtio-gpu.c
+++ b/hw/display/virtio-gpu.c
@@ -1121,25 +1121,10 @@ static int virtio_gpu_load(QEMUFile *f, void *opaque, size_t size,
     return 0;
 }
 
-static void virtio_gpu_device_realize(DeviceState *qdev, Error **errp)
+void virtio_gpu_device_realize(DeviceState *qdev, Error **errp)
 {
     VirtIODevice *vdev = VIRTIO_DEVICE(qdev);
     VirtIOGPU *g = VIRTIO_GPU(qdev);
-    bool have_virgl;
-
-#if !defined(CONFIG_VIRGL) || defined(HOST_WORDS_BIGENDIAN)
-    have_virgl = false;
-#else
-    have_virgl = display_opengl;
-#endif
-    if (!have_virgl) {
-        g->parent_obj.conf.flags &= ~(1 << VIRTIO_GPU_FLAG_VIRGL_ENABLED);
-    } else {
-#if defined(CONFIG_VIRGL)
-        VIRTIO_GPU_BASE(g)->virtio_config.num_capsets =
-            virtio_gpu_virgl_get_num_capsets(g);
-#endif
-    }
 
     if (!virtio_gpu_base_device_realize(qdev,
                                         virtio_gpu_handle_ctrl_cb,
@@ -1251,12 +1236,6 @@ static Property virtio_gpu_properties[] = {
     VIRTIO_GPU_BASE_PROPERTIES(VirtIOGPU, parent_obj.conf),
     DEFINE_PROP_SIZE("max_hostmem", VirtIOGPU, conf_max_hostmem,
                      256 * MiB),
-#ifdef CONFIG_VIRGL
-    DEFINE_PROP_BIT("virgl", VirtIOGPU, parent_obj.conf.flags,
-                    VIRTIO_GPU_FLAG_VIRGL_ENABLED, true),
-    DEFINE_PROP_BIT("stats", VirtIOGPU, parent_obj.conf.flags,
-                    VIRTIO_GPU_FLAG_STATS_ENABLED, false),
-#endif
     DEFINE_PROP_END_OF_LIST(),
 };
 
diff --git a/include/hw/virtio/virtio-gpu.h b/include/hw/virtio/virtio-gpu.h
index 5b2d011b49..7430f3cd99 100644
--- a/include/hw/virtio/virtio-gpu.h
+++ b/include/hw/virtio/virtio-gpu.h
@@ -221,6 +221,7 @@ int virtio_gpu_create_mapping_iov(VirtIOGPU *g,
 void virtio_gpu_cleanup_mapping_iov(VirtIOGPU *g,
                                     struct iovec *iov, uint32_t count);
 void virtio_gpu_process_cmdq(VirtIOGPU *g);
+void virtio_gpu_device_realize(DeviceState *qdev, Error **errp);
 
 /* virtio-gpu-3d.c */
 void virtio_gpu_virgl_process_cmd(VirtIOGPU *g,
-- 
2.11.4.GIT