From: Jes Sorensen <jes.soren...@redhat.com>
New option -display none. This option differs from -display nographic
by not trying to take control of stdio etc. but instead behaves as if
a graphics display is enabled, except that it doesn't show one.
Signed-off-by: Jes Sorensen <jes.soren...@redhat.com>
---
qemu-options.hx | 8 +++++++-
sysemu.h | 1 +
vl.c | 2 ++
3 files changed, 10 insertions(+), 1 deletions(-)
diff --git a/qemu-options.hx b/qemu-options.hx
index f08ffb1..80506e7 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -592,7 +592,7 @@ ETEXI
DEF("display", HAS_ARG, QEMU_OPTION_display,
"-display sdl[,frame=on|off][,alt_grab=on|off][,ctrl_grab=on|off]\n"
- " [,window_close=on|off]|curses|serial\n"
+ " [,window_close=on|off]|curses|none|serial\n"
" select display type\n", QEMU_ARCH_ALL)
STEXI
@item -display @var{type}
@@ -607,6 +607,12 @@ Pick the curses display option. Normally, QEMU uses SDL to
display the
VGA output. With this option, QEMU can display the VGA output when in
text mode using a curses/ncurses interface. Nothing is displayed in
graphical mode.
+@item none
+Pick the none display option. This option will still run with an
+emulated graphics card, but none will be displayed to the QEMU
+user. This options differs from the -nographic option in that QEMU
+will behave like if one of the display options had been picked, it
+will not change the control on the command line.
@item serial
Normally, QEMU uses SDL to display the VGA output. With this option,
you can totally disable graphical output so that QEMU is a simple
diff --git a/sysemu.h b/sysemu.h
index 0a83ab9..c43c7af 100644
--- a/sysemu.h
+++ b/sysemu.h
@@ -110,6 +110,7 @@ typedef enum DisplayType
DT_CURSES,
DT_SDL,
DT_NOGRAPHIC,
+ DT_NONE,
} DisplayType;
extern int autostart;
diff --git a/vl.c b/vl.c
index c88ee58..d12ac96 100644
--- a/vl.c
+++ b/vl.c
@@ -1619,6 +1619,8 @@ static DisplayType select_display(const char *p)
#endif
} else if (strstart(p, "serial", &opts)) {
display = DT_NOGRAPHIC;
+ } else if (strstart(p, "none", &opts)) {
+ display = DT_NONE;
} else {
invalid_display:
fprintf(stderr, "Unknown display type: %s\n", p);
--
1.7.4
