[PATCH 1/7] virtio-gpu: CONTEXT_INIT feature

[Antonio Caggiano]

Create virgl renderer context with flags using context_id when valid.

Signed-off-by: Antonio Caggiano <antonio.caggiano@collabora.com>
---
 hw/display/virtio-gpu-base.c                |  2 ++
 hw/display/virtio-gpu-virgl.c               | 10 ++++++++--
 include/hw/virtio/virtio-gpu-bswap.h        |  2 +-
 include/standard-headers/linux/virtio_gpu.h |  9 +++++++--
 4 files changed, 18 insertions(+), 5 deletions(-)

diff --git a/hw/display/virtio-gpu-base.c b/hw/display/virtio-gpu-base.c
index c8da4806e0..619185a9d2 100644
--- a/hw/display/virtio-gpu-base.c
+++ b/hw/display/virtio-gpu-base.c
@@ -212,6 +212,8 @@ virtio_gpu_base_get_features(VirtIODevice *vdev, uint64_t 
features,
         features |= (1 << VIRTIO_GPU_F_RESOURCE_BLOB);
     }
 
+    features |= (1 << VIRTIO_GPU_F_CONTEXT_INIT);
+
     return features;
 }
 
diff --git a/hw/display/virtio-gpu-virgl.c b/hw/display/virtio-gpu-virgl.c
index 18d054922f..5a184cf445 100644
--- a/hw/display/virtio-gpu-virgl.c
+++ b/hw/display/virtio-gpu-virgl.c
@@ -97,8 +97,14 @@ static void virgl_cmd_context_create(VirtIOGPU *g,
     trace_virtio_gpu_cmd_ctx_create(cc.hdr.ctx_id,
                                     cc.debug_name);
 
-    virgl_renderer_context_create(cc.hdr.ctx_id, cc.nlen,
-                                  cc.debug_name);
+    if (cc.context_init) {
+        virgl_renderer_context_create_with_flags(cc.hdr.ctx_id,
+                                                 cc.context_init,
+                                                 cc.nlen,
+                                                 cc.debug_name);
+    } else {
+        virgl_renderer_context_create(cc.hdr.ctx_id, cc.nlen, cc.debug_name);
+    }
 }
 
 static void virgl_cmd_context_destroy(VirtIOGPU *g,
diff --git a/include/hw/virtio/virtio-gpu-bswap.h 
b/include/hw/virtio/virtio-gpu-bswap.h
index e2bee8f595..6267cb57e5 100644
--- a/include/hw/virtio/virtio-gpu-bswap.h
+++ b/include/hw/virtio/virtio-gpu-bswap.h
@@ -24,7 +24,7 @@ virtio_gpu_ctrl_hdr_bswap(struct virtio_gpu_ctrl_hdr *hdr)
     le32_to_cpus(&hdr->flags);
     le64_to_cpus(&hdr->fence_id);
     le32_to_cpus(&hdr->ctx_id);
-    le32_to_cpus(&hdr->padding);
+    le32_to_cpus(&hdr->info);
 }
 
 static inline void
diff --git a/include/standard-headers/linux/virtio_gpu.h 
b/include/standard-headers/linux/virtio_gpu.h
index 1357e4774e..c9f9c24d6a 100644
--- a/include/standard-headers/linux/virtio_gpu.h
+++ b/include/standard-headers/linux/virtio_gpu.h
@@ -59,6 +59,11 @@
  * VIRTIO_GPU_CMD_RESOURCE_CREATE_BLOB
  */
 #define VIRTIO_GPU_F_RESOURCE_BLOB       3
+/*
+ * VIRTIO_GPU_CMD_CREATE_CONTEXT with
+ * context_init
+ */
+#define VIRTIO_GPU_F_CONTEXT_INIT        4
 
 enum virtio_gpu_ctrl_type {
        VIRTIO_GPU_UNDEFINED = 0,
@@ -129,7 +134,7 @@ struct virtio_gpu_ctrl_hdr {
        uint32_t flags;
        uint64_t fence_id;
        uint32_t ctx_id;
-       uint32_t padding;
+       uint32_t info;
 };
 
 /* data passed in the cursor vq */
@@ -272,7 +277,7 @@ struct virtio_gpu_resource_create_3d {
 struct virtio_gpu_ctx_create {
        struct virtio_gpu_ctrl_hdr hdr;
        uint32_t nlen;
-       uint32_t padding;
+       uint32_t context_init;
        char debug_name[64];
 };
 
-- 
2.30.2