Although bdrv_getlength() was just called above this, and checked for
error, it is better to just use the value we already get, and use
DIV_ROUND_UP.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
This fixes a bug introduced in commit ac1307ab, that caused the
'--help' option to not be recognized as a valid command, and not
print any help.
Signed-off-by: Jeff Cody <jcody@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
* remotes/otubo/seccomp:
seccomp: add shmctl(), mlock(), and munlock() to the syscall whitelist
seccomp: add timerfd_create and timerfd_settime to the whitelist
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
* remotes/qmp-unstable/queue/qmp:
monitor: fix qmp_getfd() fd leak in error case
HMP: support specifying dump format for dump-guest-memory
HMP: fix doc of dump-guest-memory
qmp: object-add: Validate class before creating object
monitor: Add device_add and device_del completion.
monitor: Add command_completion callback to mon_cmd_t.
monitor: Fix drive_del id argument type completion.
error: Remove some unused headers
qerror.h: Replace QERR_NOT_SUPPORTED with QERR_UNSUPPORTED
qerror.h: Remove QERR defines that are only used once
qerror.h: Remove unused error classes
error: Print error_report() to stderr if using qmp
monitor: Remove unused monitor_print_filename
error: Privatize error_print_loc
vnc: Remove default_mon usage
slirp: Remove default_mon usage
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
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Merge remote-tracking branch 'remotes/stefanha/tags/block-pull-request' into staging
Block pull request
# gpg: Signature made Fri 25 Apr 2014 17:05:13 BST using RSA key ID 81AB73C8
# gpg: Good signature from "Stefan Hajnoczi <stefanha@redhat.com>"
# gpg: aka "Stefan Hajnoczi <stefanha@gmail.com>"
* remotes/stefanha/tags/block-pull-request:
iscsi: Don't use error_is_set() to suppress additional errors
blockdev: Clean up fragile use of error_is_set()
nbd: Use return values instead of error_is_set(errp)
qemu-img: Consistently name Error * objects err, and not errp
Use error_is_set() only when necessary (again)
block: Expose host_* drivers in blockdev-add
MAINTAINERS: Add qemu-img/io to block subsystem
qemu-iotests: Improve and make use of QMPTestCase.wait_until_completed()
doc: add -drive rerror=,werror= to qemu --help output
block: Prevent coroutine stack overflow when recursing in bdrv_open_backing_file.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
- gdb stubs to make it compile if gdb support is pulled in
- linux-headers update for new oneregs
- two onereg enhancements
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Merge remote-tracking branch 'remotes/cohuck/tags/s390x-20140425' into staging
Some s390x patches:
- gdb stubs to make it compile if gdb support is pulled in
- linux-headers update for new oneregs
- two onereg enhancements
# gpg: Signature made Fri 25 Apr 2014 12:42:46 BST using RSA key ID C6F02FAF
# gpg: Can't check signature: public key not found
* remotes/cohuck/tags/s390x-20140425:
s390x/kvm: sync gbea and pp register
s390x/kvm: rework KVM synchronize to tracing for some ONEREGS
linux-headers update
s390x: empty function stubs in preparation for __KVM_HAVE_GUEST_DEBUG
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
The smbd forked by qemu still uses the default ncalrpc directory
in /var/run/samba. This may lead to problems, if /var/run/samba
does not exist (for example if /var/run is a tmpfs and the host
smbd was not started).
This leads to the following error message from samba
and an unworkable smbd:
Failed to create pipe directory /var/run/samba/ncalrpc - No such file or directory
Fix this by pointing smbd to /tmp/qemu-smb.%d.%d/ncalrpc as ncalrpc directory.
Smbd will create the actual ncalrpc subdirectory on its own.
Signed-off-by: Michael Buesch <m@bues.ch>
Cc: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
(Applying this to -trivial because it _is_ rather trivial
and because Jan does not reply for months)
The rule for messages.po appears to be slightly wrong.
Move the `cd' command within parens.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Tested-by: Stefan Weil <sw@weilnetz.de>
Fields "name" (created with strdup in new_entry) and "pathname"
(created with g_strdup_printf in new_entry) of pathelem struct should
be freed before the whole struct is.
Signed-off-by: Kirill Batuzov <batuzovk@ispras.ru>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The current code calls accept() without initializing the size parameter
which means the accept call might write too much to the stack.
URL: https://bugs.gentoo.org/486714
Signed-off-by: Tim Comer <comer0@gmail.com>
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
The "Q" of the logo is already included in pc-bios/qemu_logo_no_text.svg.
This file now adds the complete logo as it was designed by Benoît Canet.
Benoît licensed it under CC-BY 3.0, see
http://lists.gnu.org/archive/html/qemu-devel/2012-02/msg02865.html.
Unneeded borders from Benoît's original logo were removed,
and metadata (license, author, date) was added in this version.
Cc: Benoît Canet <benoit@irqsave.net>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
'writeconfig' supports output to stdout (with '-'); when that happens,
we must not close stdout, or further command line options that also use
stdout will be impacted. (Although 'writeconfig' was copied from
'readconfig', the latter does not have the problem because it does not
support reading from '-')
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Reviewed-by: Peter Crosthwaite <peter.crosthwaite@xilinx.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
CODING_STYLE frowns upon mixing declarations and statements. main()
has such a declaration. Clean up by eliminating the variable.
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
"This if else has no code between it and the end of the enclosing
while loop. This makes this continue redundant."
Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
A few more cleanups for .gitignore file.
The final goal is to have only files in there which
are generated during build. Things like .orig or
.gdbinit are definitely not generated during build.
Also, anchor a few more build-time directories.
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Old:
There are two paths to show help and exit 1, one is with "-h" or
"--help", one is with invalid options.
New:
Show help and exit 0 for --help.
On invalid option, don't show the long help and bury the early "ERROR:"
line, just give a message pointing to --help.
Signed-off-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Adds option to -m
"size" - startup memory amount
For compatibility with legacy CLI if suffix-less number is passed,
it assumes amount in Mb.
Otherwise user is free to use suffixed number using suffixes b,k/K,M,G
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Andreas Färber <afaerber@suse.de>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
These functions don't need type casts (as does cpu_physical_memory_rw)
and also make the code better readable.
Signed-off-by: Stefan Weil <sw@weilnetz.de>
Signed-off-by: Michael Tokarev <mjt@tls.msk.ru>
Additional testing reveals that PulseAudio requires shmctl() and the
mlock()/munlock() syscalls on some systems/configurations. As before,
on systems that do require these syscalls, the problem can be seen with
the following command line:
# qemu -monitor stdio -sandbox on \
-device intel-hda -device hda-duplex
Signed-off-by: Paul Moore <pmoore@redhat.com>
Signed-off-by: Eduardo Otubo <otubo@linux.vnet.ibm.com>
Using error_is_set(errp) that way can sweep programming errors under
the carpet when we get called incorrectly with an error set.
Commit 24d3bd6 added a broken error path to iscsi_do_inquiry(): it
first calls error_setg(), then jumps to the preexisting error label,
where error_setg() gets called again, triggering an assertion failure.
Commit cbee81f fixed this by guarding the second error_setg() with an
error_is_set().
Replace this fix by a simpler and safer one: jump right behind the
second error_setg().
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Using error_is_set(ERRP) to find out whether a function failed is
either wrong, fragile, or unnecessarily opaque. It's wrong when ERRP
may be null, because errors go undetected when it is. It's fragile
when proving ERRP non-null involves a non-local argument. Else, it's
unnecessarily opaque (see commit 84d18f0).
The error_is_set(errp) in internal_snapshot_prepare() is merely
fragile, because the caller never passes a null errp argument.
Make the code more robust and more obviously correct: receive the
error in a local variable, then propagate it through the parameter.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Using error_is_set(errp) to check whether a function call failed is
fragile: it breaks when errp is null. Check perfectly suitable return
values instead when possible. errp can't be null there now, but this
is more robust and more obviously correct
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
error_is_set(&var) is the same as var != NULL, but it takes
whole-program analysis to figure that out. Unnecessarily hard for
optimizers, static checkers, and human readers. Commit 84d18f0 dumbed
it down to obvious, but a few more have crept in since, and
documentation was overlooked. Dumb these down, too.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
All the functionality to use the host_device, host_cdrom and host_floppy
drivers is already there, they just need to be added to the schema.
The block driver names containing underscores are preexisting and cannot
be changed without breaking command line compatibility.
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Fam Zheng <famz@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
qemu-img and qemu-io were not covered by any MAINTAINERS entry so far.
Reported-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
These options are already documented on the man page but missing from
qemu --help.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Kevin Wolf <kwolf@redhat.com>
In 1.7.1 qcow2_create2 reopen the file for flushing without the BDRV_O_NO_BACKING
flags.
As a consequence the code would recursively open the whole backing chain.
These three stack arrays would pile up through the recursion and lead to a coroutine
stack overflow.
Convert these array to malloced buffers in order to streamline the coroutine
footprint.
Symptoms where freezes or segfaults on production machines while taking QMP externals
snapshots. The overflow disturbed coroutine switching.
[Resolved conflicts on qemu.git/master since the patch was against v1.7.1
--Stefan]
Signed-off-by: Benoit Canet <benoit.canet@gmail.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
qemu_chr_fe_get_msgfd() transfers ownership of the file descriptor to
the caller. Therefore all code paths in qmp_getfd() should either
register the file descriptor somewhere or close it.
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Dumping guest memory is available to specify the dump format now. This patch
adds options '-z|-l|-s' to HMP command dump-guest-memory to specify dumping in
kdump-compression format, with zlib/lzo/snappy compression. And without these
options ELF format will be used.
The discussion about this feature is here:
http://lists.nongnu.org/archive/html/qemu-devel/2014-03/msg04235.html
Signed-off-by: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
Suggested-by: Christian Borntraeger <borntraeger@de.ibm.com>
Tested-by: Christian Borntraeger <borntraeger@de.ibm.com> (on s390x/kvm)
Reviewed-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Currently it is very easy to crash QEMU by issuing an object-add command
using an abstract class or a class that doesn't support
TYPE_USER_CREATABLE as parameter.
Example: with the following QMP command:
(QEMU) object-add qom-type=cpu id=foo
QEMU aborts at:
ERROR:qom/object.c:335:object_initialize_with_type: assertion failed: (type->abstract == false)
This patch moves the check for TYPE_USER_CREATABLE before object_new(),
and adds a check to prevent the code from trying to instantiate abstract
classes.
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
Reviewed-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Tested-by: Matthew Rosato <mjrosato@linux.vnet.ibm.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Using error_is_set(errp) that way can sweep programming errors under
the carpet when we get called incorrectly with an error set.
qmp_query_rx_filter() breaks its loop when it detects an error. It
needs to set another error when the loop completes normally.
Return right away instead of merely breaking the loop.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
With a client name, the QMP command is specified to return a list of
one element. This isn't locally obvious in the code. Make it so.
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
Convert object_add and object_del commands to use the new callback.
Signed-off-by: Hani Benhabiles <hani@linux.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Makes it a bit clear how the interdependencies work.
Cc: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
The former is only used twice, the latter is used over 30 times, and
has a nicer error message.
Cc: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
Just hardcode them in the callers
Cc: Luiz Capitulino <lcapitulino@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Reviewed-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com>
