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From e7980021a52658198f04024cb762f09aac607e97 Mon Sep 17 00:00:00 2001
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From: Gerd Hoffmann <kraxel@redhat.com>
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Date: Mon, 14 Oct 2013 13:35:20 +0200
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Subject: [PATCH 13/18] qemu-char: add -chardev mux support
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RH-Author: Gerd Hoffmann <kraxel@redhat.com>
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Message-id: <1381757723-23134-13-git-send-email-kraxel@redhat.com>
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Patchwork-id: 54857
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O-Subject: [RHEL-7 qemu-kvm PATCH 12/15] qemu-char: add -chardev mux support
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Bugzilla: 922010
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RH-Acked-by: Hans de Goede <hdegoede@redhat.com>
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RH-Acked-by: Laszlo Ersek <lersek@redhat.com>
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RH-Acked-by: Paolo Bonzini <pbonzini@redhat.com>
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Allow to explicitly create mux chardevs on the command line,
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like you can using QMP.
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Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
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Reviewed-by: Laszlo Ersek <lersek@redhat.com>
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Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
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(cherry picked from commit bb6fb7c0857aeda7982ac14460328edf3c29cfc8)
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Conflicts:
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	qemu-char.c
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---
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 qemu-char.c | 18 ++++++++++++++++++
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 1 file changed, 18 insertions(+)
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Signed-off-by: Miroslav Rezanina <mrezanin@redhat.com>
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---
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 qemu-char.c |   18 ++++++++++++++++++
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 1 files changed, 18 insertions(+), 0 deletions(-)
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diff --git a/qemu-char.c b/qemu-char.c
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index 145fd30..fc1b21a 100644
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--- a/qemu-char.c
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+++ b/qemu-char.c
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@@ -3142,6 +3142,19 @@ static void qemu_chr_parse_ringbuf(QemuOpts *opts, ChardevBackend *backend,
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     }
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 }
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+static void qemu_chr_parse_mux(QemuOpts *opts, ChardevBackend *backend,
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+                               Error **errp)
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+{
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+    const char *chardev = qemu_opt_get(opts, "chardev");
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+
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+    if (chardev == NULL) {
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+        error_setg(errp, "chardev: mux: no chardev given");
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+        return;
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+    }
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+    backend->mux = g_new0(ChardevMux, 1);
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+    backend->mux->chardev = g_strdup(chardev);
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+}
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+
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 typedef struct CharDriver {
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     const char *name;
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     /* old, pre qapi */
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@@ -3509,6 +3522,9 @@ QemuOptsList qemu_chardev_opts = {
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         },{
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             .name = "size",
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             .type = QEMU_OPT_SIZE,
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+        },{
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+            .name = "chardev",
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+            .type = QEMU_OPT_STRING,
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         },
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         { /* end of list */ }
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     },
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@@ -3800,6 +3816,8 @@ static void register_types(void)
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     register_char_driver_qapi("console", CHARDEV_BACKEND_KIND_CONSOLE, NULL);
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     register_char_driver_qapi("pipe", CHARDEV_BACKEND_KIND_PIPE,
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                               qemu_chr_parse_pipe);
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+    register_char_driver_qapi("mux", CHARDEV_BACKEND_KIND_MUX,
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+                              qemu_chr_parse_mux);
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     /* Bug-compatibility: */
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     register_char_driver_qapi("memory", CHARDEV_BACKEND_KIND_MEMORY,
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                               qemu_chr_parse_ringbuf);
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-- 
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1.7.1
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