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[Xen-changelog] [xen-3.3-testing] ioemu: Fix serial console for HVM gues

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Subject: [Xen-changelog] [xen-3.3-testing] ioemu: Fix serial console for HVM guests
From: "Xen patchbot-3.3-testing" <patchbot-3.3-testing@xxxxxxxxxxxxxxxxxxx>
Date: Mon, 26 Oct 2009 06:40:49 -0700
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# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1256564211 0
# Node ID 98fe9e75d24b886b795b7ee39c3b2935d881604f
# Parent  f1fb228b43acf7149c1791197266cf16a8647ae7
ioemu: Fix serial console for HVM guests

Manpage states: "The cfmakeraw function sets the flags stored in the
termios structure (initialized by tcgetattr) to a state ... giving a
'raw I/O path'.

From: Manuel Bouyer <bouyer@xxxxxxxxxx>
Signed-off-by: Christoph Egger <Christoph.Egger@xxxxxxx>
 tools/ioemu/vl.c |    5 ++++-
 1 files changed, 4 insertions(+), 1 deletion(-)

diff -r f1fb228b43ac -r 98fe9e75d24b tools/ioemu/vl.c
--- a/tools/ioemu/vl.c  Mon Aug 31 09:45:27 2009 +0100
+++ b/tools/ioemu/vl.c  Mon Oct 26 13:36:51 2009 +0000
@@ -1914,8 +1914,11 @@ static CharDriverState *qemu_chr_open_pt
     /* Set raw attributes on the pty. */
+    if (tcgetattr(master_fd, &tty) < 0)
+        perror("tcgetattr failed");
-    tcsetattr(slave_fd, TCSAFLUSH, &tty);
+    if (tcsetattr(slave_fd, TCSAFLUSH, &tty) < 0)
+        perror("tcsetattr failed");
     fprintf(stderr, "char device redirected to %s\n", ptsname(master_fd));

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