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virtio-gpu: Handle virtio_gpu_virgl_init() failure

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virtio_gpu_virgl_init() may fail, leading to a further Qemu crash
because Qemu assumes it never fails. Check virtio_gpu_virgl_init()
return code and don't execute virtio commands on error. Failed
virtio_gpu_virgl_init() will result in a timed out virtio commands
for a guest OS.

Signed-off-by: Dmitry Osipenko <dmitry.osipenko@collabora.com>
Message-Id: <20241024210311.118220-5-dmitry.osipenko@collabora.com>
Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
This commit is contained in:
Dmitry Osipenko 2024-10-25 00:03:02 +03:00 • committed by Alex Bennée
parent a0a8f47fd0
commit 7e688d1bf5
2 changed files with 31 additions and 10 deletions
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11
include/hw/virtio/virtio-gpu.h
View file

@ -222,11 +222,18 @@ struct VirtIOGPUClass {
Error **errp);
};
/* VirtIOGPUGL renderer states */
typedef enum {
RS_START, /* starting state */
RS_INIT_FAILED, /* failed initialisation */
RS_INITED, /* initialised and working */
RS_RESET, /* inited and reset pending, moves to start after reset */
} RenderState;
struct VirtIOGPUGL {
struct VirtIOGPU parent_obj;
bool renderer_inited;
bool renderer_reset;
RenderState renderer_state;
QEMUTimer *fence_poll;
QEMUTimer *print_stats;