help: Provide help for egl-headless
EGL headless has been missing from QEMU's help or man page, we should mention that such a thing exists, especially since projects like libvirt might rely on that. This patch also adds the newly introduced option for egl-headless 'rendernode'. Signed-off-by: Erik Skultety <eskultet@redhat.com> Message-id: 87ef678b0934d3abba66c46c9e65b57119d29295.1542362949.git.eskultet@redhat.com Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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@ -1216,7 +1216,8 @@ DEF("display", HAS_ARG, QEMU_OPTION_display,
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"-display gtk[,grab_on_hover=on|off][,gl=on|off]|\n"
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"-display vnc=<display>[,<optargs>]\n"
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"-display curses\n"
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"-display none"
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"-display none\n"
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"-display egl-headless[,rendernode=<file>]"
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" select display type\n"
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"The default display is equivalent to\n"
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#if defined(CONFIG_GTK)
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@ -1258,6 +1259,9 @@ menus and other UI elements to configure and control the VM during
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runtime.
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@item vnc
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Start a VNC server on display <arg>
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@item egl-headless
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Offload all OpenGL operations to a local DRI device. For any graphical display,
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this display needs to be paired with either VNC or SPICE displays.
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@end table
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ETEXI
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