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authorPaolo Bonzini <pbonzini@redhat.com>2013-07-03 20:29:45 +0400
committerAnthony Liguori <aliguori@us.ibm.com>2013-07-09 13:14:06 -0500
commit02c4bdf1d2ca8c02a9bae16398f260b5c08d08bf (patch)
tree3edbc0c6ea3ac5635091890d5c637bb4e382dacb /qemu-options.hx
parent964c6fa16f50a607f9da5068d6bf15ccc93872c0 (diff)
downloadqemu-arm-02c4bdf1d2ca8c02a9bae16398f260b5c08d08bf.tar.gz
trap signals for "-serial mon:stdio"
With mon:stdio you can exit the VM by switching to the monitor and sending the "quit" command. It is then useful to pass Ctrl-C to the VM instead of exiting. This in turn lets us stop tying the default signal handling behavior to -nographic, removing gratuitous differences between "-display none" and "-nographic". This patch changes behavior for "-display none -serial mon:stdio", as expected, but not for "-display none -serial stdio". Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Michael Tokarev <mjt@tls.msk.ru> Reviewed-by: Peter Maydell <peter.maydell@linaro.org> Message-id: 1372868986-25988-1-git-send-email-mjt@msgid.tls.msk.ru Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Diffstat (limited to 'qemu-options.hx')
-rw-r--r--qemu-options.hx8
1 files changed, 5 insertions, 3 deletions
diff --git a/qemu-options.hx b/qemu-options.hx
index 137a39b7ad..7cc4d8ef25 100644
--- a/qemu-options.hx
+++ b/qemu-options.hx
@@ -842,7 +842,8 @@ STEXI
Normally, QEMU uses SDL to display the VGA output. With this option,
you can totally disable graphical output so that QEMU is a simple
command line application. The emulated serial port is redirected on
-the console. Therefore, you can still use QEMU to debug a Linux kernel
+the console and muxed with the monitor (unless redirected elsewhere
+explicitly). Therefore, you can still use QEMU to debug a Linux kernel
with a serial console.
ETEXI
@@ -2485,14 +2486,15 @@ same as if you had specified @code{-serial tcp} except the unix domain socket
@item mon:@var{dev_string}
This is a special option to allow the monitor to be multiplexed onto
another serial port. The monitor is accessed with key sequence of
-@key{Control-a} and then pressing @key{c}. See monitor access
-@ref{pcsys_keys} in the -nographic section for more keys.
+@key{Control-a} and then pressing @key{c}.
@var{dev_string} should be any one of the serial devices specified
above. An example to multiplex the monitor onto a telnet server
listening on port 4444 would be:
@table @code
@item -serial mon:telnet::4444,server,nowait
@end table
+When monitor is multiplexed to stdio this way, Ctrl+C will not terminate
+QEMU anymore but will be passed to the guest instead.
@item braille
Braille device. This will use BrlAPI to display the braille output on a real