When multiple GPU are available, picking the first one isn't always the
best choice. Learn to specify a device rendernode.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Message-id:
20170212112118.16044-1-marcandre.lureau@redhat.com
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
extern struct gbm_device *qemu_egl_rn_gbm_dev;
extern EGLContext qemu_egl_rn_ctx;
-int qemu_egl_rendernode_open(void);
-int egl_rendernode_init(void);
+int egl_rendernode_init(const char *rendernode);
int egl_get_fd_for_texture(uint32_t tex_id, EGLint *stride, EGLint *fourcc);
#endif
" [,streaming-video=[off|all|filter]][,disable-copy-paste]\n"
" [,disable-agent-file-xfer][,agent-mouse=[on|off]]\n"
" [,playback-compression=[on|off]][,seamless-migration=[on|off]]\n"
- " [,gl=[on|off]]\n"
+ " [,gl=[on|off]][,rendernode=<file>]\n"
" enable spice\n"
" at least one of {port, tls-port} is mandatory\n",
QEMU_ARCH_ALL)
@item gl=[on|off]
Enable/disable OpenGL context. Default is off.
+@item rendernode=<file>
+DRM render node for OpenGL rendering. If not specified, it will pick
+the first available. (Since 2.9)
+
@end table
ETEXI
struct gbm_device *qemu_egl_rn_gbm_dev;
EGLContext qemu_egl_rn_ctx;
-int qemu_egl_rendernode_open(void)
+static int qemu_egl_rendernode_open(const char *rendernode)
{
DIR *dir;
struct dirent *e;
int r, fd;
char *p;
+ if (rendernode) {
+ return open(rendernode, O_RDWR | O_CLOEXEC | O_NOCTTY | O_NONBLOCK);
+ }
+
dir = opendir("/dev/dri");
if (!dir) {
return -1;
return fd;
}
-int egl_rendernode_init(void)
+int egl_rendernode_init(const char *rendernode)
{
qemu_egl_rn_fd = -1;
- qemu_egl_rn_fd = qemu_egl_rendernode_open();
+ qemu_egl_rn_fd = qemu_egl_rendernode_open(rendernode);
if (qemu_egl_rn_fd == -1) {
error_report("egl: no drm render node available");
goto err;
},{
.name = "gl",
.type = QEMU_OPT_BOOL,
+ },{
+ .name = "rendernode",
+ .type = QEMU_OPT_STRING,
#endif
},
{ /* end of list */ }
"incompatible with -spice port/tls-port");
exit(1);
}
- if (egl_rendernode_init() != 0) {
+ if (egl_rendernode_init(qemu_opt_get(opts, "rendernode")) != 0) {
error_report("Failed to initialize EGL render node for SPICE GL");
exit(1);
}