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>
This commit is contained in:
Erik Skultety 2018-11-16 11:14:44 +01:00 committed by Gerd Hoffmann
parent 91e61947eb
commit 144aaa990e

View File

@ -1216,7 +1216,8 @@ DEF("display", HAS_ARG, QEMU_OPTION_display,
"-display gtk[,grab_on_hover=on|off][,gl=on|off]|\n"
"-display vnc=<display>[,<optargs>]\n"
"-display curses\n"
"-display none"
"-display none\n"
"-display egl-headless[,rendernode=<file>]"
" select display type\n"
"The default display is equivalent to\n"
#if defined(CONFIG_GTK)
@ -1258,6 +1259,9 @@ menus and other UI elements to configure and control the VM during
runtime.
@item vnc
Start a VNC server on display <arg>
@item egl-headless
Offload all OpenGL operations to a local DRI device. For any graphical display,
this display needs to be paired with either VNC or SPICE displays.
@end table
ETEXI