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+graphic: 0.911
+device: 0.845
+performance: 0.613
+network: 0.610
+PID: 0.600
+VMM: 0.582
+hypervisor: 0.580
+architecture: 0.575
+virtual: 0.568
+semantic: 0.555
+ppc: 0.544
+kernel: 0.500
+risc-v: 0.484
+TCG: 0.474
+vnc: 0.421
+arm: 0.414
+permissions: 0.397
+register: 0.360
+debug: 0.357
+mistranslation: 0.357
+i386: 0.355
+files: 0.354
+socket: 0.352
+boot: 0.326
+peripherals: 0.324
+x86: 0.266
+KVM: 0.243
+user-level: 0.155
+assembly: 0.155
+
+virtgpu does not return error for misconfigured virgl command
+Description of problem:
+When ```virgl_renderer_submit_cmd``` reports error, cmd->error should be set. Otherwise driver cannot know if there is error.
+https://gitlab.com/qemu-project/qemu/-/blob/master/hw/display/virtio-gpu-virgl.c?ref_type=heads#L233
+
+Probably 0x1200 (unspec) or 0x1205 (invalid param) should return as error. 
+
+
+If there is problem in cmd virgl freezes drawing window.
+Steps to reproduce:
+1. Send misformated command to virgl over vgpu device
+2.
+3.
+Additional information:
+Misformated 3d commands stops opengl's drawings. Without returning error we cannot know any error, hence we cannot reset vgpu.