From bd1d5ad9f9a1347d6f4338f294253617c565c89a Mon Sep 17 00:00:00 2001 From: Stefan Fritsch Date: Sun, 11 Jun 2017 09:48:17 +0200 Subject: Add chardev-send-break monitor command MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Sending a break on a serial console can be useful for debugging the guest. But not all chardev backends support sending breaks (only telnet and mux do). The chardev-send-break command allows to send a break even if using other backends. Signed-off-by: Stefan Fritsch Acked-by: Dr. David Alan Gilbert Message-Id: <20170611074817.13621-1-sf@sfritsch.de> Reviewed-by: Eric Blake Reviewed-by: Marc-André Lureau Signed-off-by: Dr. David Alan Gilbert Use 'send a break' in all 3 pieces of text as suggested by eblake --- chardev/char.c | 12 ++++++++++++ 1 file changed, 12 insertions(+) (limited to 'chardev/char.c') diff --git a/chardev/char.c b/chardev/char.c index bcfc065d16..2b679a2295 100644 --- a/chardev/char.c +++ b/chardev/char.c @@ -951,6 +951,18 @@ void qmp_chardev_remove(const char *id, Error **errp) object_unparent(OBJECT(chr)); } +void qmp_chardev_send_break(const char *id, Error **errp) +{ + Chardev *chr; + + chr = qemu_chr_find(id); + if (chr == NULL) { + error_setg(errp, "Chardev '%s' not found", id); + return; + } + qemu_chr_be_event(chr, CHR_EVENT_BREAK); +} + void qemu_chr_cleanup(void) { object_unparent(get_chardevs_root()); -- cgit v1.2.3