Commit Graph

351 Commits

Author SHA1 Message Date
Orit Wasserman
5db5f44cb4 Separate inet_connect into inet_connect (blocking) and inet_nonblocking_connect
No need to add non blocking parameters to the blocking inet_connect
add block parameter for inet_connect_opts instead of using QemuOpt "block".

Signed-off-by: Orit Wasserman <owasserm@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-25 19:05:55 -05:00
David Gibson
bbdd2ad081 qemu-char: BUGFIX, don't call FD_ISSET with negative fd
tcp_chr_connect(), unlike for example udp_chr_update_read_handler() does
not check if the fd it is using is valid (>= 0) before passing it to
qemu_set_fd_handler2().  If using e.g. a TCP serial port, which is not
initially connected, this can result in -1 being passed to FD_ISSET, which
has undefined behaviour.  On x86 it seems to harmlessly return 0, but on
PowerPC, it causes a fortify buffer overflow error to be thrown.

This patch fixes this by putting an extra test in tcp_chr_connect(), and
also adds an assert qemu_set_fd_handler2() to catch other such errors on
all platforms, rather than just some.

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-17 10:18:48 -05:00
Anthony Liguori
6db0fdce02 Revert 455aa1e08 and c3767ed0eb
commit c3767ed0eb
    qemu-char: (Re-)connect for tcp_chr_write() unconnected writing

Has no hope of working because tcp_chr_connect() does not actually connect.

455aa1e08 just fixes the SEGV with server() but the attempt to connect a client
socket is still completely broken.

This patch reverts both.

Reported-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-17 10:18:48 -05:00
Anthony Liguori
455aa1e081 socket: don't attempt to reconnect a TCP socket in server mode
Commit c3767ed0eb introduced a possible SEGV when
using a socket chardev with server=on because it assumes that all TCP sockets
are in client mode.

This patch adds a check to only reconnect when in client mode.

Cc: Lei Li <lilei@linux.vnet.ibm.com>
Reported-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-09-10 10:57:52 -05:00
Lei Li
c3767ed0eb qemu-char: (Re-)connect for tcp_chr_write() unconnected writing
tcp_chr_write() did not deal with writing to an unconnected
connection and return the original length of the data, it's
not right and would cause false writing. So (re-)connect it
and return 0 for this situation.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Lei Li <lilei@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-08-16 13:41:38 -05:00
Corey Bryant
06138651f3 qemu-char: Add MSG_CMSG_CLOEXEC flag to recvmsg
Set the close-on-exec flag for the file descriptor received
via SCM_RIGHTS.

Signed-off-by: Corey Bryant <coreyb@linux.vnet.ibm.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2012-08-15 10:48:57 +02:00
Luiz Capitulino
02a08fef07 net: inet_connect(), inet_connect_opts(): add in_progress argument
It's used to indicate the special case where a valid file-descriptor
is returned (ie. success) but the connection can't be completed
w/o blocking.

This is needed because QERR_SOCKET_CONNECT_IN_PROGRESS is not
treated like an error and a future commit will drop it.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
2012-08-13 13:20:34 -03:00
Michael Tokarev
3294ce1893 do not include <libutil.h> needlessly or if it doesn't exist
<libutil.h> and <util.h> on *BSD (some have one, some another)
were #included just for openpty() declaration.  The only file
where this function is actually used is qemu-char.c.

In vl.c and net/tap-bsd.c, none of functions declared in libutil.h
(login logout logwtmp timdomain openpty forkpty uu_lock realhostname
fparseln and a few others depending on version) are used.

Initially the code which is currently in qemu-char.c was in vl.c,
it has been removed into separate file in commit 0e82f34d07
Fri Oct 31 18:44:40 2008, but the #includes were left in vl.c.
So with vl.c, we just remove includes - libutil.h, util.h and
pty.h (which declares only openpty() and forkpty()) from there.

The code in net/tap-bsd.c, which come from net/tap.c, had this

commit 5281d757ef
Author: Mark McLoughlin <markmc@redhat.com>
Date:   Thu Oct 22 17:49:07 2009 +0100

    net: split all the tap code out into net/tap.c

Note this commit not only moved stuff out of net.c to net/tap.c,
but also rewrote large portions of the tap code, and added these
completely unnecessary #includes -- as usual, I question why such
a misleading commit messages are allowed.

Again, no functions defined in libutil.h or util.h on *BSD are
used by neither net/tap.c nor net/tap-bsd.c.  Removing them.

And finally, the only real user for these #includes, qemu-char.c,
which actually uses openpty().  There, the #ifdef logic is wrong.
A GLIBC-based system has <pty.h>, even if it is a variant of *BSD.
So __GLIBC__ should be checked first, and instead of trying to
include <libutil.h> or <util.h>, we include <pty.h>.  If it is not
GLIBC-based, we check for variations between <*util.h> as before.

This patch fixes build of qemu 1.1 on Debian/kFreebsd (well, one
of the two problems): it is a distribution with a FreeBSD kernel,
so it #defines at least __FreeBSD_kernel__, but since it is based
on GLIBC, it has <pty.h>, but current version does not have neither
<util.h> nor <libutil.h>, which the code tries to include 3 times
but uses only once.

Signed-off-By: Michael Tokarev <mjt@tls.msk.ru>
Cc: Aurelien Jarno <aurelien@aurel32.net>

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2012-06-09 10:30:08 +00:00
Luiz Capitulino
8be7e7e4c7 qemu-option: qemu_opts_create(): use error_set()
This commit converts qemu_opts_create() from qerror_report() to
error_set().

Currently, most calls to qemu_opts_create() can't fail, so most
callers don't need any changes.

The two cases where code checks for qemu_opts_create() erros are:

 1. Initialization code in vl.c. All of them print their own
    error messages directly to stderr, no need to pass the Error
    object

 2. The functions opts_parse(), qemu_opts_from_qdict() and
    qemu_chr_parse_compat() make use of the error information and
    they can be called from HMP or QMP. In this case, to allow for
    incremental conversion, we propagate the error up using
    qerror_report_err(), which keeps the QError semantics

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Reviewed-By: Laszlo Ersek <lersek@redhat.com>
2012-06-04 13:49:34 -03:00
Amos Kong
029409e5a9 sockets: use error class to pass listen error
Add a new argument in inet_listen()/inet_listen_opts()
to pass back listen error.

Change nbd, qemu-char, vnc to use new interface.

Signed-off-by: Amos Kong <akong@redhat.com>
Reviewed-by: Orit Wasserman <owasserm@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-05-10 12:37:57 -05:00
Amos Kong
a6ba35b3be sockets: change inet_connect() to support nonblock socket
Add a bool argument to inet_connect() to assign if set socket
to block/nonblock, and delete original argument 'socktype'
that is unused.
Add a new argument to inet_connect()/inet_connect_opts(),
to pass back connect error by error class.

Retry to connect when -EINTR is got. Connect's successful
for nonblock socket when following errors are got, user
should wait for connecting by select():
  -EINPROGRESS
  -EWOULDBLOCK (win32)
  -WSAEALREADY (win32)

Change nbd, vnc to use new interface.

Signed-off-by: Amos Kong <akong@redhat.com>
Reviewed-by: Orit Wasserman <owasserm@redhat.com>
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-05-10 12:37:57 -05:00
Stefan Weil
ac3107340f qemu-char: Fix crash when switching consoles
qemu-system-arm (and other system emulations) crashes with SDL when
the user switches consoles (Alt-Ctrl-F4).

We already check for NULL pointers in qemu_chr_fe_ioctl,
qemu_chr_be_can_write and other functions, so do this also
for s->chr_read in qemu_chr_be_write. This fixes the crash.

Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-04-24 09:50:31 -05:00
Jan Kiszka
98c8ee1da8 Kick io-thread on qemu_chr_accept_input
Once a chr frontend is able to receive input again, we need to inform
the io-thread about this fact. Otherwise, main_loop_wait may continue to
select without the related backend file descriptor in its set. This can
cause high input latencies if only low-rate events arrive otherwise.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
2012-04-16 15:41:31 +02:00
Markus Armbruster
d7378ee1c1 qemu-char: qemu_chr_open_fd() can't fail, don't check
Cleaned up silently in commit aad04cd0, but that just got reverted.
Re-apply this part.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-24 09:06:57 -06:00
Markus Armbruster
a89dd6c32e qemu-char: Re-apply style fixes from just reverted aad04cd0
Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-24 09:06:57 -06:00
Markus Armbruster
b181e04777 qemu-char: Use qemu_open() to avoid leaking fds to children
Fixed silently in commit aad04cd0, but that just got reverted.
Re-apply the fixes, plus one missed instance: parport on Linux.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-24 09:06:57 -06:00
Markus Armbruster
1f51470d04 Revert "qemu-char: Print strerror message on failure" and deps
The commit's purpose is laudable:

    The only way for chardev drivers to communicate an error was to
    return a NULL pointer, which resulted in an error message that
    said _that_ something went wrong, but not _why_.

It attempts to achieve it by changing the interface to return 0/-errno
and update qemu_chr_open_opts() to use strerror() to display a more
helpful error message.  Unfortunately, it has serious flaws:

1. Backends "socket" and "udp" return bogus error codes, because
qemu_chr_open_socket() and qemu_chr_open_udp() assume that
unix_listen_opts(), unix_connect_opts(), inet_listen_opts(),
inet_connect_opts() and inet_dgram_opts() fail with errno set
appropriately.  That assumption is wrong, and the commit turns
unspecific error messages into misleading error messages.  For
instance:

    $ qemu-system-x86_64 -nodefaults -vnc :0 -chardev socket,id=bar,host=xxx
    inet_connect: host and/or port not specified
    chardev: opening backend "socket" failed: No such file or directory

ENOENT is what happens to be in my errno when the backend returns
-errno.  Let's put ERANGE there just for giggles:

    $ qemu-system-x86_64 -nodefaults -vnc :0 -chardev socket,id=bar,host=xxx -drive if=none,iops=99999999999999999999
    inet_connect: host and/or port not specified
    chardev: opening backend "socket" failed: Numerical result out of range

Worse: when errno happens to be zero, return -errno erroneously
signals success, and qemu_chr_new_from_opts() dies dereferencing
uninitialized chr.  I observe this with "-serial unix:".

2. All qemu_chr_open_opts() knows about the error is an errno error
code.  That's simply not enough for a decent message.  For instance,
when inet_dgram() can't resolve the parameter host, which errno code
should it use?  What if it can't resolve parameter localaddr?

Clue: many backends already report errors in their open methods.
Let's revert the flawed commit along with its dependencies, and fix up
the silent error paths instead.

This reverts commit 6e1db57b2a.

Conflicts:

	console.c
	hw/baum.c
	qemu-char.c

This reverts commit aad04cd024.

The parts of commit db418a0a "Add stdio char device on windows" that
depend on the reverted change fixed up.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-24 09:06:56 -06:00
Anthony Liguori
0beb494207 qdev: nuke qdev_init_chardev()
I'm sure the intentions were good here, but there's no reason this should be in
qdev.  Move it to qemu-char where it belongs.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2012-02-03 10:41:08 -06:00
Hans de Goede
a425d23f8f qemu-char: rename qemu_chr_event to qemu_chr_be_event and make it public
Rename qemu_chr_event to qemu_chr_be_event, since it is only to be
called by backends and make it public so that it can be used by chardev
code which lives outside of qemu-char.c

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-11-28 16:20:51 -06:00
Markus Armbruster
a4e2604852 qemu-char: Plug memory leak on qemu_chr_open_pty() error path
Spotted by Coverity.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-11-11 12:49:51 -06:00
Fabien Chouteau
db418a0a7e Add stdio char device on windows
Simple implementation of an stdio char device on Windows.

Signed-off-by: Fabien Chouteau <chouteau@adacore.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-10-23 15:44:15 +00:00
Stefan Weil
2e02e18ba7 qemu-char: Fix use of free() instead of g_free()
cppcheck reported these errors:

qemu-char.c:1667: error: Mismatching allocation and deallocation: s
qemu-char.c:1668: error: Mismatching allocation and deallocation: chr
qemu-char.c:1769: error: Mismatching allocation and deallocation: s
qemu-char.c:1770: error: Mismatching allocation and deallocation: chr

Tested-by: Dongxu Wang <wdongxu@linux.vnet.ibm.com>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-10-14 14:38:13 +01:00
Luiz Capitulino
c5a415a0af qapi: Convert query-chardev
Reviewed-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Tested-by: Michael Roth <mdroth@linux.vnet.ibm.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2011-10-04 11:02:57 -03:00
Marcelo Tosatti
069c159e39 qemu-char: use qemu_set_fd_handler/2 consistently
Now that qemu_set_fd_handler and qemu_set_fd_handler2 have different
implementations, one using qemu iohandlers and the other glib, it is not
safe to mix the two when inserting/deleting handlers.

Fixes kvm-autotest.

Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-09-23 13:42:33 -05:00
Anthony Liguori
903396ad3e char: remove qemu_chr_send_event()
It's dead code.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-22 10:17:44 -05:00
Anthony Liguori
74c0d6f020 char: rename qemu_chr_get_msgfd() -> qemu_chr_fe_get_msgfd()
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-22 10:17:44 -05:00
Anthony Liguori
70f24fb6c6 char: rename qemu_chr_close() -> qemu_chr_delete()
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-22 10:17:43 -05:00
Anthony Liguori
f69554b9e8 char: qemu_chr_open_opts() -> qemu_chr_new_from_opts()
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-22 10:17:43 -05:00
Anthony Liguori
27143a445b char: rename qemu_chr_open() -> qemu_chr_new()
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-22 10:17:43 -05:00
Anthony Liguori
15f31519b4 char: rename qemu_chr_set_echo() -> qemu_chr_fe_set_echo()
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-22 10:17:37 -05:00
Anthony Liguori
41084f1bad char: qemu_chr_ioctl() -> qemu_chr_fe_ioctl()
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-22 10:17:37 -05:00
Anthony Liguori
2817822dce char: rename qemu_chr_guest_close() -> qemu_chr_fe_close()
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-22 10:17:16 -05:00
Anthony Liguori
c9d830eddc char: rename qemu_chr_guest_open() -> qemu_chr_fe_open()
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-22 10:17:16 -05:00
Anthony Liguori
909cda12b5 char: rename qemu_chr_can_read() -> qemu_chr_be_can_read()
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-22 10:17:16 -05:00
Anthony Liguori
fa5efccb2a char: rename qemu_chr_read() -> qemu_chr_be_write()
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-22 10:17:16 -05:00
Anthony Liguori
e7e71b0ec6 char: rename qemu_chr_printf() -> qemu_chr_fe_printf()
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-22 10:17:15 -05:00
Anthony Liguori
2cc6e0a142 char: rename qemu_chr_write() -> qemu_chr_fe_write()
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-22 10:17:15 -05:00
Anthony Liguori
7267c0947d Use glib memory allocation and free functions
qemu_malloc/qemu_free no longer exist after this commit.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-08-20 23:01:08 -05:00
Blue Swirl
00aa0040e8 Wrap recv to avoid warnings
Avoid warnings like these by wrapping recv():
  CC    slirp/ip_icmp.o
/src/qemu/slirp/ip_icmp.c: In function 'icmp_receive':
/src/qemu/slirp/ip_icmp.c:418:5: error: passing argument 2 of 'recv' from incompatible pointer type [-Werror]
/usr/local/lib/gcc/i686-mingw32msvc/4.6.0/../../../../i686-mingw32msvc/include/winsock2.h:547:32: note: expected 'char *' but argument is of type 'struct icmp *'

Remove also casts used to avoid warnings.

Reviewed-by: Anthony Liguori <aliguori@us.ibm.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-07-25 14:38:56 +00:00
Blue Swirl
aad04cd024 Fix chrdev return value conversion
6e1db57b2a didn't
convert brlapi or win32 chrdevs, breaking build for those.

Fix by converting the chrdevs.

Acked-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-07-24 14:48:57 +00:00
Daniel P. Berrange
1366108981 Introduce a 'client_add' monitor command accepting an open FD
Allow client connections for VNC and socket based character
devices to be passed in over the monitor using SCM_RIGHTS.

One intended usage scenario is to start QEMU with VNC on a
UNIX domain socket. An unprivileged user which cannot access
the UNIX domain socket, can then connect to QEMU's VNC server
by passing an open FD to libvirt, which passes it onto QEMU.

 { "execute": "get_fd", "arguments": { "fdname": "myclient" } }
 { "return": {} }
 { "execute": "add_client", "arguments": { "protocol": "vnc",
                                           "fdname": "myclient",
                                           "skipauth": true } }
 { "return": {} }

In this case 'protocol' can be 'vnc' or 'spice', or the name
of a character device (eg from -chardev id=XXXX)

The 'skipauth' parameter can be used to skip any configured
VNC authentication scheme, which is useful if the mgmt layer
talking to the monitor has already authenticated the client
in another way.

* console.h: Define 'vnc_display_add_client' method
* monitor.c: Implement 'client_add' command
* qemu-char.c, qemu-char.h: Add 'qemu_char_add_client' method
* qerror.c, qerror.h: Add QERR_ADD_CLIENT_FAILED
* qmp-commands.hx: Declare 'client_add' command
* ui/vnc.c: Implement 'vnc_display_add_client' method

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-23 11:19:02 -05:00
Kevin Wolf
6e1db57b2a qemu-char: Print strerror message on failure
The only way for chardev drivers to communicate an error was to return a NULL
pointer, which resulted in an error message that said _that_ something went
wrong, but not _why_.

This patch changes the interface to return 0/-errno and updates
qemu_chr_open_opts to use strerror to display a more helpful error message.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-07-23 11:18:57 -05:00
Alexandre Raymond
9bf0960a9a Fix compilation warning due to missing header for sigaction (followup)
This patch removes all references to signal.h when qemu-common.h is included
as they become redundant.

Signed-off-by: Alexandre Raymond <cerbere@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
2011-06-08 09:04:29 +01:00
Amit Shah
da7d998bbb char: Detect chardev release by NULL handlers as well as NULL opaque
Juan says he prefers these extra checks to ensure a user of a chardev is
releasing it.

Requested-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
2011-04-28 11:11:04 +05:30
Kusanagi Kouichi
d5b27167e1 char: Allow devices to use a single multiplexed chardev.
This fixes regression caused by commit
2d6c1ef40f
("char: Prevent multiple devices opening same chardev"):

-nodefaults -nographic -chardev stdio,id=stdio,mux=on,signal=off \
 -mon stdio -device virtio-serial-pci \
 -device virtconsole,chardev=stdio -device isa-serial,chardev=stdio

fails with:

qemu-system-x86_64: -device isa-serial,chardev=stdio: Property 'isa-serial.chardev' can't take value 'stdio', it's in use

Signed-off-by: Kusanagi Kouichi <slash@ac.auone-net.jp>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
2011-04-28 11:03:07 +05:30
Hans de Goede
7c32c4feeb chardev: Allow frontends to notify backends of guest open / close
Some frontends know when the guest has opened the "channel" and is actively
listening to it, for example virtio-serial. This patch adds 2 new qemu-chardev
functions which can be used by frontends to signal guest open / close, and
allows interested backends to listen to this.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Alon Levy <alevy@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
2011-04-28 11:02:21 +05:30
Anthony Liguori
56d7a964a5 Merge remote branch 'amit/for-anthony' into staging 2011-03-24 08:11:58 -05:00
Amit Shah
2d6c1ef40f char: Prevent multiple devices opening same chardev
Prevent:

-chardev socket,path=/tmp/foo,server,nowait,id=c0 \
-device virtserialport,chardev=c0,id=vs0 \
-device virtserialport,chardev=c0,id=vs1

Reported-by: Mike Cao <bcao@redhat.com>
Signed-off-by: Amit Shah <amit.shah@redhat.com>
2011-03-21 16:57:13 +05:30
Paolo Bonzini
7bd427d801 change all rt_clock references to use millisecond resolution accessors
This was done with:

    sed -i '/get_clock\>.*rt_clock/s/get_clock\>/get_clock_ms/' \
        $(git grep -l 'get_clock\>.*rt_clock' )
    sed -i '/new_timer\>.*rt_clock/s/new_timer\>/new_timer_ms/' \
        $(git grep -l 'new_timer\>.*rt_clock' )

after checking that get_clock and new_timer never occur twice
on the same line.  There were no missed occurrences; however, even
if there had been, they would have been caught by the compiler.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2011-03-21 09:23:23 +01:00
Stefan Weil
e0efb993b8 Fix conversions from pointer to int and vice versa
Here the int values fds[0], sigfd, s, sock and fd are converted
to void pointers which are later converted back to an int value.

These conversions should always use intptr_t instead of unsigned long.

They are needed for environments where sizeof(long) != sizeof(void *).

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2011-03-20 21:39:23 +00:00
Stefan Hajnoczi
1bbd185fa8 qemu-char: Check for missing backend name
Check if the backend option is missing before searching the backend
table.  This fixes a NULL pointer dereference when QEMU is invoked with
the following invalid command-line:

  $ qemu -chardev id=foo,path=/tmp/socket

Previously QEMU would segfault, now it produces this error message:

  chardev: "foo" missing backend

Signed-off-by: Stefan Hajnoczi <stefanha@linux.vnet.ibm.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2011-02-20 18:26:28 +01:00
Paolo Bonzini
363f8cb9bc fix QemuOpts leak
Now that no backend's open function saves the passed QemuOpts, fix a leak
in the qemu_chr_open backwards-compatible parser.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-02-01 16:50:44 -06:00
Paolo Bonzini
bb002513a9 add set_echo implementation for qemu_chr_stdio
This also requires moving QemuOpts out of term_init.

Clearing ISIG is independent of whether echo is enabled or disabled.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-02-01 16:50:43 -06:00
Paolo Bonzini
0369364be8 move atexit(term_exit) and O_NONBLOCK to qemu_chr_open_stdio
In the next patch, term_init will be changed to enable or disable
echo at will.  Move extraneous stuff out of it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-02-01 16:50:43 -06:00
Paolo Bonzini
c48855e140 add qemu_chr_set_echo
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-02-01 16:50:43 -06:00
Paolo Bonzini
d55dbc3acd remove broken code for tty
This code is taking the settings for a serial port and moving it to
fd 0 when qemu exits.  This is likely just cut-and-paste, rip it.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2011-02-01 16:50:43 -06:00
Alon Levy
cbcc6336ce spice: add chardev (v5)
Adding a chardev backend for spice, where spice determines what
to do with it based on the name attribute given during chardev creation.
For usage by spice vdagent in conjunction with a properly named
virtio-serial device, and future smartcard channel usage.

Example usage:
 qemu -device virtio-serial -chardev spicevmc,name=vdagent,id=vdagent \
 -device virtserialport,chardev=vdagent,name=com.redhat.spice.0

v4->v5:
 * add tracing events
 * fix missing comma
 * fix help string to show debug is optional

v3->v4:
 * updated commit message

v1->v3 changes: (v2 had a wrong commit message)
 * removed spice-qemu-char.h, folded into ui/qemu-spice.h
 * removed dead IOCTL code
 * removed comment
 * removed ifdef CONFIG_SPICE from qemu-config.c and qemu-options.hx help.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
2011-01-24 15:41:40 +01:00
Luiz Capitulino
999bd67c87 qemu-char: Introduce Memory driver
This driver handles in-memory chardev operations. That's, all writes
to this driver are stored in an internal buffer and it doesn't talk
to the external world in any way.

Right now it's very simple: it supports only writes. But it can be
easily extended to support more operations.

This is going to be used by the monitor's "HMP passthrough via QMP"
feature, which needs to run monitor handlers without a backing
device.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-11-17 09:52:24 -02:00
Jes Sorensen
5fc9cfedfa Fold send_all() wrapper unix_write() into one function
The current send_all() wrapper for POSIX calls does nothing but call
unix_write(). Merge them to simplify the code.

Signed-off-by: Jes Sorensen <Jes.Sorensen@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-11-03 12:48:09 -05:00
Gerd Hoffmann
3329f07b7a QemuOpts: make most qemu_*_opts static
Switch tree to lookup-by-name using qemu_find_opts().
Also hook up virtfs options so qemu_find_opts works for them too.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-08-22 17:11:06 -05:00
Blue Swirl
68c18d1ccf Fix mingw32 build
Don't define qemu_chr_open_eventfd() on Windows.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-08-15 09:46:24 +00:00
Cam Macdonell
6cbf4c8c64 RESEND: Inter-VM shared memory PCI device
resend for bug fix related to removal of irqfd

Support an inter-vm shared memory device that maps a shared-memory object as a
PCI device in the guest.  This patch also supports interrupts between guest by
communicating over a unix domain socket.  This patch applies to the qemu-kvm
repository.

    -device ivshmem,size=<size in format accepted by -m>[,shm=<shm name>]

Interrupts are supported between multiple VMs by using a shared memory server
by using a chardev socket.

    -device ivshmem,size=<size in format accepted by -m>[,shm=<shm name>]
           [,chardev=<id>][,msi=on][,ioeventfd=on][,vectors=n][,role=peer|master]
    -chardev socket,path=<path>,id=<id>

The shared memory server, sample programs and init scripts are in a git repo here:

    www.gitorious.org/nahanni

Signed-off-by: Cam Macdonell <cam@cs.ualberta.ca>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-08-10 16:25:16 -05:00
Markus Armbruster
6ab4b5ab8f block: Decouple block device "commit all" from DriveInfo
do_commit() and mux_proc_byte() iterate over the list of drives
defined with drive_init().  This misses host block devices defined by
other means.  Such means don't exist now, but will be introduced later
in this series.

Change them to use new bdrv_commit_all(), which iterates over all host
block devices.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-06-15 09:41:59 +02:00
Markus Armbruster
666daa6823 blockdev: Collect block device code in new blockdev.c
Anything that moves hundreds of lines out of vl.c can't be all bad.

Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2010-06-04 15:20:47 +02:00
Luiz Capitulino
637503d122 Monitor: Drop QMP documentation from code
Previous commit added QMP documentation to the qemu-monitor.hx
file, it's is a copy of this information.

While it's good to keep it near code, maintaining two copies of
the same information is too hard and has little benefit as we
don't expect client writers to consult the code to find how to
use a QMP command.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-06-01 13:48:43 -05:00
Paolo Bonzini
e53f27b9d9 stash away SCM_RIGHTS fd until a getfd command arrives
If there is already a fd in s->msgfd before recvmsg it is
closed by parts that this patch does not touch.  So, only
one descriptor can be "leaked" by attaching it to a command
other than getfd.

Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
2010-04-26 16:36:31 -03:00
Alexander Graf
73cdf3f2c9 Always notify consumers of char devices if they're open
When using virtio-console on s390, the input doesn't work.

The root of the problem is rather simple. What happens is the following:

 1) create character device for stdio
 2) char device is done creating, sends OPENED event
 3) virtio-console adds handlers
 4) no event comes because the char device is open already
 5) virtio-console doesn't accept input because it didn't
    receive an OPENED event

To make that sure virtio-console gets notified that the character device
is open even when it's been open from the beginning, this patch introduces
a variable that keeps track of the opened state. If the device is open when
the event handlers get installed, we just notify the handler.

This fixes input with virtio-console on s390.

Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-09 22:03:22 +02:00
Riku Voipio
cb301efe4f fix function signature of qemu_chr_open_pty on !linux
Signed-off-By: Riku Voipio <riku.voipio@nokia.com>
Signed-off-By: Juha Riihimäki <juha.riihimaki@nokia.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-04-08 21:08:27 +02:00
Shahar Havivi
d3f822d241 Restore terminal monitor attributes - addition
Patch 2d753894c7 was missing this check,
when running monitor as /dev/tty and other serial device, i.e:
  qemu -monitor /dev/tty -serial /dev/pts/1

Without this patch any serial device will override the monitor stored
attributes. (monitor is called in main() before any serial device).

Signed-off-by: Shahar Havivi <shaharh@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-03-31 11:17:29 -05:00
Juergen Lock
d1839d7367 Fix some compilation warnings on FreeBSD hosts
Signed-off-by: Juergen Lock <nox@jelal.kn-bremen.de>
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-30 17:44:44 +00:00
Anthony Liguori
28695489e3 Revert "Convert atexit users to exit_notifier"
This reverts commit d7234f4d7e.

Conflicts:

	hw/xen_machine_pv.c

This should have never been committed.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-03-21 14:13:02 -05:00
Anthony Liguori
d7234f4d7e Convert atexit users to exit_notifier
All of these users have global state so we really don't see a benefit from
exit_notifier.  However, using exit_notifier means that there's one less
justification for having global state in the first place.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-03-19 15:27:38 -05:00
Juan Quintela
7b27a769f1 rename IOCanRWHandler to IOCanReadHandler
It was always only used for reads

Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-03-19 15:27:27 -05:00
Jan Kiszka
39324ca488 Fix corner case in chardev udp: parameter
The missing '@' broke 'udp::<port>@:<port>' parsing.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-03-14 22:43:37 +01:00
Shahar Havivi
2d753894c7 Restore terminal attributes for tty based monitor
Patch http://permalink.gmane.org/gmane.comp.emulators.qemu/63472 handle
close when using tty devices (like /dev/ttyS0),
yet tty based monitor are not restoring terminal attributes (as done
with stdio based monitor), when closing qemu after that command:
$ qemu -monitor /dev/tty
the terminal is not responding until you write reset (blindly),
this patch fix it

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-03-09 08:47:27 -06:00
Jan Kiszka
5bb599023a qemu-char.c: drop debug printfs from qemu_chr_parse_compat
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2010-02-28 11:50:25 +01:00
David Ahern
4266a13471 add close callback for tty-based char device
v1 -> v2  coding style changes

Add a tty close callback. Right now if a guest device that is connected
to a tty-based chardev in the host is removed, the tty is not closed.
With this patch it is closed.

Example use case is connecting an emulated USB serial cable in the guest
to ttyS0 of the host using the monitor command:

usb_add serial::/dev/ttyS0

and then removing the device with:

usb_del serial::/dev/ttyS0

Signed-off-by: David Ahern <daahern@cisco.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-02-22 16:16:17 -06:00
Evgeniy Dushistov
afc535acb5 Do not ignore error, if open file failed (-serial /dev/tty)
In case, when qemu is executed with option like
-serial /dev/ttyS0, report if there are problems with
opening of devices. At now errors are silently ignoring.

Signed-off-by: Evgeniy Dushistov <dushistov@mail.ru>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-02-10 11:56:56 -06:00
Kusanagi Kouichi
3b9d7e6621 char: Remove redundant qemu_chr_generic_open() call.
qemu_chr_open_fd() calls qemu_chr_generic_open(),
so qemu_chr_open_tty() doesn't need to call it.

Signed-off-by: Kusanagi Kouichi <slash@ac.auone-net.jp>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-01-19 16:31:03 -06:00
Luiz Capitulino
588b383201 char: Convert qemu_chr_info() to QObject
Each device is represented by a QDict. The returned QObject is a QList
of all devices.

This commit should not change user output.

Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-12 07:59:49 -06:00
Gerd Hoffmann
33521634bf un-static qemu_chr_parse_compat()
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-12 07:59:43 -06:00
Kevin Wolf
40ff6d7e8d Don't leak file descriptors
We're leaking file descriptors to child processes. Set FD_CLOEXEC on file
descriptors that don't need to be passed to children to stop this misbehaviour.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-03 11:45:50 -06:00
Aurelien Jarno
bbe813a2dd Fix commit a167ba5085
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-11-30 15:42:59 +01:00
Aurelien Jarno
a167ba5085 Add support for GNU/kFreeBSD
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-11-29 18:00:41 +01:00
Amit Shah
127338e610 char: rename qemu_chr_reset to qemu_chr_generic_open
This function sends out the OPENED event to backends that
have drive the chardevs. The 'reset' is now a historical
artifact and we can now just call the function for what it
is.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-17 08:03:31 -06:00
Amit Shah
57e073a3a1 char: Remove special init_reset handling
The initial_reset sent to chardevs doesn't do much other than setting
a bool to true. Char devices are interested in the open event and
that gets sent whenever the device is opened.

Moreover, the reset logic breaks as and when qemu's bh scheduling
changes.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-17 08:03:30 -06:00
Amit Shah
9bd7854e1e char: don't limit data sent to backends to 1k per buffer
chardevs have a 'can_read' function via which backends specify
the amount of data they can receive. When can_read returns > 0,
apps can start sending data. However, each chardev driver here
allows a max. of 1k bytes inspite of the backend being able to
receive more.

The best we can do here is to allocate s->max_size bytes from
the heap on each call (which is the number returned by the
backend from the can_read call).

This is an intermediate step to bump up the bytes written in
each call to 4k.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-11-17 08:03:30 -06:00
Stefan Weil
45eea13b24 serial: Support additional serial speed values
* Allow any speed value which is defined for Linux
  (and possibly other systems).
* Compare int values instead of double values.

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-30 08:39:32 -05:00
Anthony Liguori
f7cbc08ff0 Revert "char: emit the OPENED event only when a new char connection is opened"
This reverts commit 6cfa64de90.

This breaks the monitor prompt.  Proper fix will come from Amit.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27 12:29:06 -05:00
Mark McLoughlin
1abb817258 net: remove unused includes of if_tun.h and if_tap.h
Looks like these are just artifacts of vl.c being split up.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27 12:28:59 -05:00
Kusanagi Kouichi
5989020bc1 Add chardev option to disable signal.
If I am using vga and serial which is stdio and hit C-c on
serial console, qemu terminates. That is annoying for me.
So make it configurable whether signal is generated when C-c is hit.

Signed-off-by: Kusanagi Kouichi <slash@ac.auone-net.jp>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27 12:28:42 -05:00
Amit Shah
6cfa64de90 char: emit the OPENED event only when a new char connection is opened
The OPENED event gets sent also when qemu resets its state initially.
The consumers of the event aren't interested in receiving this event
on reset.

Patchworks-ID: 35288
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-21 13:35:37 -05:00
Amit Shah
b6b8df560c char: rename CHR_EVENT_RESET to CHR_EVENT_OPENED
The char event RESET is emitted when a char device is opened.
Give it a better name.

Patchworks-ID: 35287
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-21 13:35:37 -05:00
Amit Shah
69795d6769 char: check for initial_reset_issued unnecessary
At init, qemu_chr_reset is always called with initial_reset_issued set to 1.
So checking for it to be set is not necessary.

Patchworks-ID: 35286
Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-21 13:35:37 -05:00
Blue Swirl
72cf2d4f0e Fix sys-queue.h conflict for good
Problem: Our file sys-queue.h is a copy of the BSD file, but there are
some additions and it's not entirely compatible. Because of that, there have
been conflicts with system headers on BSD systems. Some hacks have been
introduced in the commits 15cc923584,
f40d753718,
96555a96d7 and
3990d09adf but the fixes were fragile.

Solution: Avoid the conflict entirely by renaming the functions and the
file. Revert the previous hacks.

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-09-12 07:36:22 +00:00
Gerd Hoffmann
799f1f2325 move mux focus field from CharDriverState to MuxDriver
Now that monitor stopped using focus we can make it internal
to the mux driver.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11 10:19:49 -05:00
Gerd Hoffmann
a7aec5da4d monitor: fix muxing
make the mux driver send mux_in and mux_out events when switching
focus while hooking up more handlers.

stop using CharDriverState->focus in monitor.c, track state using
the mux events instead.  This also removes the implicit assumtion
that a muxed monitor allways has mux channel 0.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11 10:19:49 -05:00
Gerd Hoffmann
c845f40149 Allow -serial chardev:<name>
Lets put -chardev into use now.  With this patch applied chardev:name is
accepted as chardev specification everywhere, i.e. now you can:

	-chardev stdio,id=ttyS0
	-serial chardev:ttyS0

which does the same as '-serial stdio".

Muxing can be done this way:

	-chardev stdio,id=mux,mux=on
	-serial chardev:mux
	-monitor chardev:mux

You can mux more than two streams.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11 10:19:49 -05:00
Gerd Hoffmann
7e1b35b44c convert udp chardev to QemuOpts.
While being at it: create a new inet_dgram_opts() function for udp setup,
so udp can handle IPv6 now.

new cmd line syntax:
    -chardev udp,id=name,host=remotehost,port=remoteport,\
	localaddr=bindaddr,localport=bindport

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11 10:19:49 -05:00
Gerd Hoffmann
7591c5c199 convert mux chardev to QemuOpts.
new cmd line syntax:  you can add mux=1 to any chardev to enable muxing,
then attach it multiple times, like this:

	-chardev pty,name=mux,mux=on

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11 10:19:49 -05:00
Gerd Hoffmann
6ea314d914 convert vc chardev to QemuOpts.
new cmd line syntax:
    -chardev vc,id=name
    -chardev vc,id=name,width=pixels,height=pixels
    -chardev vc,id=name,cols=chars,rows=chars

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11 10:19:49 -05:00
Gerd Hoffmann
48b7649691 convert tty + parport chardevs to QemuOpts.
new cmd line syntax:
    -chardev tty,id=name,path=/dev/tty*
    -chardev parport,id=name,path=/dev/parport*

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11 10:19:49 -05:00
Gerd Hoffmann
d6c983cdad convert windows console chardev to QemuOpts.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11 10:19:49 -05:00
Gerd Hoffmann
dc1c21e60c convert braille chardev to QemuOpts.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11 10:19:48 -05:00
Gerd Hoffmann
f0457e8d88 convert msmouse chardev to QemuOpts.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11 10:19:48 -05:00
Gerd Hoffmann
3c17affbff convert stdio chardev to QemuOpts.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11 10:19:48 -05:00
Gerd Hoffmann
4490dadf1d convert pty chardev to QemuOpts.
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11 10:19:48 -05:00
Gerd Hoffmann
aeb2c47a1e convert unix+tcp chardevs to QemuOpts.
new cmd line syntax:
  unix socket:
    -chardev socket,id=name,path=/path/to/socket
  tcp socket:
    -chardev socket,id=name,host=hostaddr|ipaddr,port=portnr

server and nowait options work as usual.  Alternatively you can use
server=[on|off] + wait=[on|off] syntax.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11 10:19:48 -05:00
Gerd Hoffmann
7d31544ff6 convert file+pipe chardevs to QemuOpts.
new cmd line syntax:
    -chardev file,id=name,path=/path/to/file
    -chardev pipe,id=name,path=/path/to/pipe

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11 10:19:47 -05:00
Gerd Hoffmann
191bc01bc9 switch chardev to QemuOpts: infrastructure, null device
start switching chardevs to QemuOpts.  This patch adds the
infrastructure and converts the null device.

The patch brings two new functions:

qemu_chr_open_opts()
	same as qemu_chr_open(), but uses QemuOpts instead of a
	option char string.

qemu_chr_parse_compat()
	accepts a traditional chardev option string, returns the
	corresponding QemuOpts instance, to handle backward
	compatibility.

The patch also adds a new -chardev switch which can be used to create
named+unconnected chardevs, like this:

	-chardev null,id=test

This uses the new qemu_chr_open_opts.  Thus with this patch alone only
the null device works.  The other devices will follow ...

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11 10:19:47 -05:00
Amit Shah
793cbfb5d1 char: Emit 'CLOSED' events on char device close
Notify users of the char interface whenever the file / connection is
closed.

Signed-off-by: Amit Shah <amit.shah@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-24 08:21:42 -05:00
Blue Swirl
7cba04f6de More NULL pointer fixes
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-08-01 10:13:20 +00:00
Anthony Liguori
73bcc2acaa Fix typo WIN32 -> _WIN32
This was spotted by Juan Quintela

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27 14:55:25 -05:00
Juan Quintela
71e72a19ba rename HOST_BSD to CONFIG_BSD
Signed-off-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27 14:09:20 -05:00
Gerd Hoffmann
751c6a1704 kill drives_table
First step cleaning up the drives handling.  This one does nothing but
removing drives_table[], still it became seriously big.

drive_get_index() is gone and is replaced by drives_get() which hands
out DriveInfo pointers instead of a table index.  This needs adaption in
*tons* of places all over.

The drives are now maintained as linked list.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27 14:08:23 -05:00
Mark McLoughlin
7d1740590b Add SCM_RIGHTS support to unix socket character devices
If a file descriptor is passed via a message with SCM_RIGHTS ancillary
data on a unix socket, store the file descriptor for use in the
chr_read() handler. Close the file descriptor if it was not used.

The qemu_chr_get_msgfd() API provides access to the passed descriptor.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27 08:39:28 -05:00
Mark McLoughlin
9977c8943a Make tcp_chr_read() use recvmsg()
Split out tcp_chr_recv() out of tcp_chr_read() and implement it on
non-win32 using recvmsg(). This is needed for a subsequent patch
which implements SCM_RIGHTS support.

Signed-off-by: Mark McLoughlin <markmc@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27 08:39:27 -05:00
Jan Kiszka
4ab312f793 mux-term: Fix timestamp association
So far a new timestamp was generated *after* a full line had been
printed. Fix this.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-16 15:18:37 -05:00
Jan Kiszka
2d22959d61 mux-term: Localize timestamps
As we can have multiple multiplexed terminals, timestamp control and
tracking should better take place per MuxDriver.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-16 15:18:37 -05:00
Stefan Weil
705032644f Win32: Don't remove const attribute in type casts.
Type casts removing the const attribute are bad because
they hide the fact that the argument remains const.

They also result in a compiler warning (at least with MS-C).

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
2009-06-13 14:22:03 +03:00
Blue Swirl
c5b76b3810 Fix mingw32 build warnings
Work around buffer and ioctlsocket argument type signedness problems
Suppress a prototype which is unused on mingw32
Expand a macro to avoid warnings from some GCC versions

Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-06-13 08:44:31 +00:00
Anthony Liguori
993fbfdb1b Refactor how display drivers are selected
My previous commit, f92f8afebe,  broke -vnc (spotted by Glauber Costa).  This
is because it's necessary to tell when the no special display parameters have
been passed and default to SDL or VNC appropriately.

This refactors the display selection logic to be less complicated which has
the effect of fixing the regression mentioned above.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-21 20:54:40 -05:00
blueswir1
3f4cb3d37f Fix OpenSolaris gcc4 warnings: iovec type mismatches, missing 'static'
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7103 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-13 16:31:01 +00:00
aliguori
819f56b7fb char: Fix closing of various char devices (Jan Kiszka)
This patch fixes several issues around closing char devices. Affected
were pty (timer was left behind, even running), udp (no close handling
at all) and tcp (missing async IO handler cleanup). The bugs either
caused segfaults or stalled the qemu process. So far, hot-unplugging USB
serial adapters suffered from this.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6911 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-28 17:58:14 +00:00
blueswir1
179a2c1971 Rename _BSD to HOST_BSD so that it's more obvious that it's defined by configure
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6775 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-08 08:23:32 +00:00
blueswir1
c5e97233e8 Support for DragonFly BSD (Hasso Tepper)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6746 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07 20:06:23 +00:00
aliguori
cde76ee16a monitor: Introduce MONITOR_USE_READLINE flag (Jan Kiszka)
This allows to create monitor terminals that do not make use of the
interactive readline back-end but rather send complete commands. The
pass-through monitor interface of the gdbstub will be an example.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6717 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-05 23:01:51 +00:00
aliguori
2724b1806a monitor: Improve mux'ed console experience (Jan Kiszka)
Up to now, you never really knew if you already switched the console
after pressing CTRL-A C or if you mistyped it again. This patch
clarifies the situation by providing a prompt in a new line and
injecting a linebreak when switching away again. For this purpose, the
two events CHR_EVENT_MUX_IN and CHR_EVENT_MUX_OUT are introduced and
distributed on focus switches.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6716 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-05 23:01:47 +00:00
aliguori
731b03642d monitor: Decouple terminals (Jan Kiszka)
Currently all registered (and activate) monitor terminals work in
broadcast mode: Everyone sees what someone else types on some other
terminal and what the monitor reports back. This model is broken when
you have a management monitor terminal that is automatically operated
and some other terminal used for independent guest inspection. Such
additional terminals can be multiplexed device channels or a gdb
frontend connected to QEMU's stub.

Therefore, this patch decouples the buffers and states of all monitor
terminals, allowing the user to operate them independently. It finally
starts to use the 'mon' parameter that was introduced earlier with the
API rework. It also defines the default monitor: the first instantance
that has the MONITOR_IS_DEFAULT flag set, and that is the monitor
created via the "-monitor" command line switch (or "vc" if none is
given).

As the patch requires to rework the monitor suspension interface, it
also takes the freedom to make it "truely" suspending (so far suspending
meant suppressing the prompt, but inputs were still processed).

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6715 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-05 23:01:42 +00:00
aliguori
bb806047e2 monitor: Drop banner hiding (Jan Kiszka)
There is no use for the hide/show banner option, and it is applied
inconsistently anyway (or what makes the difference between
 -serial mon:stdio and -nographic for the monitor?). So drop this mode.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6713 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-05 23:01:33 +00:00
aliguori
376253ece4 monitor: Rework API (Jan Kiszka)
Refactor the monitor API and prepare it for decoupled terminals:
term_print functions are renamed to monitor_* and all monitor services
gain a new parameter (mon) that will once refer to the monitor instance
the output is supposed to appear on. However, the argument remains
unused for now. All monitor command callbacks are also extended by a mon
parameter so that command handlers are able to pass an appropriate
reference to monitor output services.

For the case that monitor outputs so far happen without clearly
identifiable context, the global variable cur_mon is introduced that
shall once provide a pointer either to the current active monitor (while
processing commands) or to the default one. On the mid or long term,
those use case will be obsoleted so that this variable can be removed
again.

Due to the broad usage of the monitor interface, this patch mostly deals
with converting users of the monitor API. A few of them are already
extended to pass 'mon' from the command handler further down to internal
functions that invoke monitor_printf.

At this chance, monitor-related prototypes are moved from console.h to
a new monitor.h. The same is done for the readline API.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6711 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-05 23:01:23 +00:00
aliguori
a80bf99fa3 char-mux: Use separate input buffers (Jan Kiszka)
Currently, the intermediate input buffer of mux'ed character devices
records data across all sub-devices. This has the side effect that we
easily leak data recorded over one sub-devices to another once we switch
the focus. Avoid data loss and confusion by defining exclusive buffers.

Note: In contrast to the original author's claim, the buffering concept
still breaks down when the fifo of the currently active sub-device is
full. As we cannot accept futher data from this point on without risking
to loose it, we will also miss escape sequences, just like without all
that buffering. In short: There is no reliable escape sequence handling
without infinite buffers or the risk of loosing some data.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6701 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-05 23:00:02 +00:00
aliguori
2970a6c943 char: Fix initial reset (Jan Kiszka)
Recent changes to the graphical console initialization broke the initial
CHR_EVENT_RESET distribution. The reset BHs generated on char device
initialization are now already consumed during machine init (ide init
... -> qemu_aio_wait -> qemu_bh_poll). Therefore, this patch moves the
initial qemu_chr_reset calls into a separate funtion which is called
after machine init.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6700 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-05 22:59:58 +00:00
aurel32
84694dd280 qemu_chr_open_tcp: allow ipv4 and ipv6 options
Those new options are parsed in qemu-sockets.c. Allow them instead of
printing "Unknown option".

Signed-off-by: Sebastian Herbszt <herbszt@gmx.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6584 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-09 20:09:29 +00:00
aurel32
aa71cf802e QEMU Microsoft serial mouse emulation
Adds "msmouse" character device, which emulates a serial mouse.
Use it with -serial msmouse.

Signed-Off-By: Lubomir Rintel <lkundrak@v3.sk>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6559 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-08 15:53:20 +00:00
aurel32
b4abdfa4fb fix use of host serial port
Signed-off-by: David Ahern <daahern@cisco.com>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6556 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-08 14:46:17 +00:00
aliguori
1eec614b36 toplevel: remove error handling from qemu_malloc() callers (Avi Kivity)
Signed-off-by: Avi Kivity <avi@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6531 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-05 22:06:18 +00:00
aliguori
a4bb1db854 monitor-mux: fix timestamp prefixes (Jan Kiszka)
rt_clock returns milliseconds. Fix mux'ed monitor terminal timestamps
accordingly.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6399 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-22 17:15:16 +00:00
aurel32
ceecf1d158 add an init function parameter to qemu_chr_open()
And use it for the malta emulation. Fix segfault introduced in
revision 6352.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6365 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-18 14:08:04 +00:00
aliguori
2796dae08a Fix character devices after DisplayState refactoring
The DisplayState refactoring changed the machine init function to create a
DisplayState for each VGA device instead of being passed an existing
DisplayState.  This change is critical to enable multiple graphics device
support.

Unfortunately, the serial/parallel/console code is structured today to run
before machine init to fill out the CharDriverState table which the machine
init function uses to determine whether to create the required devices.

Since a 'vc' is a type of CharDriverState, the CharDriverState code requires
that a DisplayState exist before it runs creating a circular dependency.

To fix this, this splits the creation of the initial CharDriverState from
the initialization of the text console.  We can then in a second step associate
a DisplayState with all TextConsoles.  This allows us to create the
CharDriverState's first, machine init, then associate the TextConsoles with
a DisplayState.

This code screams for more cleanup.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6352 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-16 20:23:27 +00:00
aliguori
3023f3329d graphical_console_init change (Stefano Stabellini)
Patch 5/7

This patch changes the graphical_console_init function to return an
allocated DisplayState instead of a QEMUConsole.

This patch contains just the graphical_console_init change and few other
modifications mainly in console.c and vl.c.
It was necessary to move the display frontends (e.g. sdl and vnc)
initialization after machine->init in vl.c.

This patch does *not* include any required changes to any device, these
changes come with the following patches.

Patch 6/7

This patch changes the QEMUMachine init functions not to take a
DisplayState as an argument because is not needed any more;

In few places the graphic hardware initialization function was called
only if DisplayState was not NULL, now they are always called.
Apart from these cases, the rest are all mechanical substitutions.

Patch 7/7

This patch updates the graphic device code to use the new
graphical_console_init function.

As for the previous patch, in few places graphical_console_init was called
only if DisplayState was not NULL, now it is always called.
Apart from these cases, the rest are all mechanical substitutions.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6344 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-16 19:04:14 +00:00
blueswir1
00766a4ec9 Make OpenBSD sparc-softmmu compile warning free
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6299 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-14 18:08:08 +00:00
aurel32
f9487cb94e Fix warning from sparse
Remove unnecessary declaration for errno (this fixes a warning from sparse)

Signed-off-by: Stefan Weil <weil@mail.berlios.de>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5833 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-30 16:25:05 +00:00
blueswir1
6972f93538 Native FreeBSD parallel port (Juergen Lock)
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5779 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-22 20:49:12 +00:00
aliguori
c3b972c30d fix some variable initizalization issues (Stefano Stabellini)
this patch fixes two variable initialization issues.

Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5705 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-12 15:00:36 +00:00
aliguori
f07b6003b6 sockets: switch over tcp/telnet/unix serial line to new helper functions (Gerd Hoffman)
This switches the tcp, telnet and unix socket support for character
devices (serial/parallel, ...) to the new socket helpers.  Thereby they
gain IPv6 support and also get ability to search for a free tcp port.
Syntax is the same as for vnc, using a to= option, like this:

	-serial tcp:localhost:5000,to=5099,server

This will check the 5000 -> 5099 port range (inclusive) for a free tcp
port.  Likewise you can get auto-allocated unix sockets by specifying an
empty path:

	-serial unix:,server

qemu will create a randomly named socket in $TMPDIR then.

tcp also got new "ipv4" and "ipv6" options to make qemu try only the
specified internet protocol version.

You can use the "info chardev" command added by the first patch in this
series to figure the tcp port / unix socket actually allocated.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5697 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-11 20:54:09 +00:00
aliguori
d247d25f18 sockets: helper functions for qemu (Gerd Hoffman)
This patch creates a new source file qemu-sockets.c with a bunch of
helper functions to create listening and connected sockets.

New features of this code are (a) support for searching for a free
port in a given range and (b) support for IPv6.

The following patches put that code into use.

Compile fixes for Windows added by Anthony Liguori

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5695 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-11 20:46:40 +00:00
blueswir1
24646c7ed8 Fix some build issues for BSD.
Signed-off-by: Christoph Egger <Christoph.Egger@amd.com>


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5646 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-07 16:55:48 +00:00
aurel32
cf3ebac7c2 qemu-char: include hw/baum.h
Fix a warning introduced in r5580 when brlapi is enabled.

Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5584 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-01 00:53:09 +00:00
aliguori
b643146d11 Remove extraneous inline keyword.
Spotted by Blue Swirl.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5582 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-31 20:00:18 +00:00
aliguori
6f97dba008 Move CharDriverState code out of vl.c
The motivating goal behind this is to allow other tools to use the CharDriver
code.  This patch is pure code motion except for the Makefile changes and the
copyright/header in qemu-char.c.

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>



git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5580 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-31 18:49:55 +00:00