Commit Graph

6547 Commits

Author SHA1 Message Date
Markus Groß
bf7f62519a Add domainIsUpdated to libxl driver 2011-04-06 15:31:04 -06:00
Jim Fehlig
3df6fd706c Fix build for older gcc
With gcc 4.3.4 I'm seeing the following warning failure

cc1: warnings being treated as errors
cc1: error: -funit-at-a-time is required for inlining of functions
that are only called once [-Wdisabled-optimization]

Add -funit-at-a-time to WARN_CFLAGS.
2011-04-06 15:05:45 -06:00
Serge Hallyn
2879582847 Change locking for udev monitor and callbacks
We're seeing bugs apparently resulting from thread unsafety of
libpciaccess, such as
https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/726099
To prevent those, as suggested by danpb on irc, move the
nodeDeviceLock(driverState) higher into the callers.  In
particular:

  udevDeviceMonitorStartup should hold the lock while calling
  udevEnumerateDevices(), and udevEventHandleCallback should hold it
  over its entire execution.

It's not clear to me whether it is ok to hold the
nodeDeviceLock while taking the virNodeDeviceObjLock(dev) on a
device.  If not, then the lock will need to be dropped around
the calling of udevSetupSystemDev(), and udevAddOneDevice()
may not actually be safe to call from higher layers with the
driverstate lock held.

libvirt 0.8.8 with this patch on it seems to work fine for me.
Assuming it looks ok and I haven't done anything obviously dumb,
I'll ask the bug submitters to try this patch.

Signed-off-by: Serge Hallyn <serge.hallyn@ubuntu.com>
2011-04-06 10:20:47 -06:00
Eric Blake
25b39315d6 tests: fix recent test failures
* tests/qemuxml2argvdata/qemuxml2argv-*.args: Reflect reserved VGA
port change.
2011-04-06 10:05:14 -06:00
Jiri Denemark
87e78b2bc0 qemu: Support for overriding NPROC limit
This patch adds max_processes option to qemu.conf which can be used to
override system default limit on number of processes that are allowed to
be running for qemu user.
2011-04-06 12:08:59 +02:00
Osier Yang
7b2cac1238 qemu: Always reserves slot 0x02 for primary VGA.
To address https://bugzilla.redhat.com/show_bug.cgi?id=692355

This fix is to reserve slot 0x02 for primary VGA even if there
is no "video" specified in domain XML to avoid the problem.
2011-04-06 14:22:54 +08:00
Eric Blake
3eb869a04b libxl: avoid compiler warning
cc1: warnings being treated as errors
libxl/libxl_driver.c: In function 'libxlDomainSetVcpusFlags':
libxl/libxl_driver.c:1570:14: error: cast from function call of type 'double' to non-matching type 'unsigned int' [-Wbad-function-cast]
libxl/libxl_driver.c:1578:15: error: cast from function call of type 'double' to non-matching type 'unsigned int' [-Wbad-function-cast]

This was the only use of floor() and ceil(), and floating-point
is overkill for power-of-two manipulations.

* src/libxl/libxl_driver.c (libxlDomainSetVcpusFlags): Avoid -lm
for trivial computations.
2011-04-05 11:09:12 -06:00
Daniel P. Berrange
a7e80bde11 Fix typo in systemtap tapset directory name
The systemtap directory for tapsets is called

  /usr/share/systemtap/tapset

Not

 /usr/share/systemtap/tapsets

* daemon/Makefile.am,libvirt.spec.in: s/tapsets/tapset/
2011-04-05 17:44:12 +01:00
Daniel P. Berrange
dba5ba62bb Don't try to enable stack protector on Win32
The GCC Win32 compiler will claim to support -fstack-protector,
but if it actually gets triggered by a suitable code pattern,
linking will fail. Other non-Linux OS likely suffer the same
way with gcc.

* m4/virt-compile-warnings.m4: Only use stack protector when
  the build target is Linux.
2011-04-05 17:43:40 +01:00
Daniel P. Berrange
5b099250e3 Avoid compiler warnings about int -> void * casts
GCC is a little confused about the cast of beginthread/beginthreadex
from unsigned long -> void *. Go via an intermediate variable avoids
the bogus warning, and makes the code a little cleaner

* src/util/threads-win32.c: Avoid compiler warning in cast
2011-04-05 17:43:33 +01:00
Daniel P. Berrange
fdcd06ef71 Improve SCSI volume key generation
The SCSI volumes get a better 'key' field based on the fully
qualified volume path. All SCSI volumes have a unique serial
available in hardware which can be obtained by sending a
suitable SCSI command. Call out to udev's 'scsi_id' command
to fetch this value

* src/storage/storage_backend_scsi.c: Improve volume key
  field value stability and uniqueness
2011-04-05 16:04:22 +01:00
Jiri Denemark
ef264e82ee qemu: Ignore unusable binaries
When initializing qemu guest capabilities, we should ignore qemu
binaries that we are not able to extract version/help info from since
they will be unusable for creating domains anyway. Ignoring them is also
much better than letting initialization of qemu driver fail.
2011-04-05 14:02:55 +02:00
Jiri Denemark
69afdf14b8 qemu: Rewrite LOOKUP_PTYS macro into a function
The macro is huge and gives us nothing but headache when maintaining it.
2011-04-05 14:02:55 +02:00
Daniel P. Berrange
a4e37ff1a3 Enable use of -Wold-style-definition compiler flag
A couple of functions were declared using the old style foo()
for no-parameters, instead of foo(void)

* src/xen/xen_hypervisor.c, tests/testutils.c: Replace () with (void)
  in some function declarations
* m4/virt-compile-warnings.m4: Enable -Wold-style-definition
2011-04-05 11:40:04 +01:00
Daniel P. Berrange
329e9dc629 Enable use of -Wmissing-noreturn
* src/internal.h: Define a ATTRIBUTE_NO_RETURN annotation
* src/lxc/lxc_container.c: Annotate lxcContainerDummyChild
  with ATTRIBUTE_NO_RETURN
* tests/eventtest.c: Mark async thread as ATTRIBUTE_NO_RETURN
* m4/virt-compile-warnings.m4: Enable -Wmissing-noreturn
2011-04-05 11:39:58 +01:00
Daniel P. Berrange
7d76d5d506 Enable -Wmissing-format-attribute warning
Add a couple of missing ATTRIBUTE_FMT_PRINTF annotations

* tools/virsh.c, tests/testutils.c: Add printf format attribute
* m4/virt-compile-warnings.m4: Enable -Wmissing-format-attribute
2011-04-05 11:39:52 +01:00
Daniel P. Berrange
4825b521e2 Remove acinclude.m4 file
Split the bit acinclude.m4 file into smaller pieces named
as m4/virt-XXXXX.m4

* .gitignore: Ignore gettext related files
* acinclude.m4: Delete
* m4/virt-compile-warnings.m4: Checks for GCC compiler flags
* m4/virt-pkgconfig-back-compat.m4: Backcompat check for
  pkgconfig program
2011-04-05 11:39:44 +01:00
Daniel P. Berrange
0e867555bd Use gnulib's manywarnings & warnings modules
Remove custom code for checking compiler warnings, using
gl_WARN_ADD instead. Don't list all flags ourselves, use
gnulib's gl_MANYWARN_ALL_GCC to get all possible GCC flags,
then turn off the ones we don't want yet.

* acinclude.m4: Rewrite to use gl_WARN_ADD and gl_MANYWARN_ALL_GCC
* bootstrap.conf: Add warnings & manywarnings
* configure.ac: Switch to gl_WARN_ADD
* m4/compiler-flags.m4: Obsoleted by gl_WARN_ADD
2011-04-05 11:39:35 +01:00
Daniel P. Berrange
222402417d Remove possible uninitialized variable in openvz driver
* src/openvz/openvz_driver.c: Initialize saveptr variable
2011-04-05 10:54:59 +01:00
Matthias Bolte
9e3550dc4e Use virBufferPtr for sexpr2string instead of manual buffer handling
Removes 4kb stack allocation in the XenD subdriver.
2011-04-05 09:14:59 +02:00
Matthias Bolte
9faf3d084c xend: Remove 4kb stack allocation 2011-04-05 09:14:06 +02:00
Matthias Bolte
3ac2a6f1b5 uml: Remove PATH_MAX sized stack allocation from /proc parsing code 2011-04-05 09:13:29 +02:00
Matthias Bolte
cd708ef4ea storage: Remove PATH_MAX sized stack allocation from iSCSI backend 2011-04-05 09:12:46 +02:00
Matthias Bolte
651a9529b2 qemu: Remove PATH_MAX sized stack allocation used in commandline building 2011-04-05 09:11:32 +02:00
Matthias Bolte
25f85e4938 Remove PATH_MAX sized stack allocation from virFileOpenTtyAt 2011-04-05 09:10:32 +02:00
Matthias Bolte
f044376530 openvz: Remove several larger stack allocations
Replace openvz_readline with getline in several places to get rid of stack
allocated buffers to hold lines.

openvzReadConfigParam allocates memory for return values instead of
expecting a preexisting buffer.
2011-04-05 09:09:38 +02:00
Matthias Bolte
76f0ae3261 daemon: Remove 4kb stack allocation of security label 2011-04-05 09:08:58 +02:00
Matthias Bolte
36deff0499 virsh: Remove two 4kb stack allocations 2011-04-05 09:07:40 +02:00
Matthias Bolte
a16de3594f Use virFileAbsPath instead of manually creating the absolute path
Removes multiple 4kb stack allocations.

Removes TODO comments as suggested by Daniel P. Berrange.
2011-04-05 09:05:11 +02:00
Matthias Bolte
1901d091f1 xenxs: Remove PATH_MAX sized stack allocation in XM script parsing 2011-04-05 09:01:37 +02:00
Matthias Bolte
0e27b8a856 sasl: Remove stack allocated 8kb temporary buffers
Move the buffers to the heap allocated client/private data structs.
2011-04-05 08:55:27 +02:00
Matthias Bolte
fb7f0051a2 qemu: Use heap allocated memory to read the monitor greeting
Removing a 4kb stack allocation.

Reduce stack buffer for virStrerror to the common 1kb instead of 4kb.
2011-04-05 08:55:27 +02:00
Matthias Bolte
d1591ad50b phyp: Remove 16kb stack allocation
Allocate on the heap instead.
2011-04-05 08:55:27 +02:00
Matthias Bolte
97176c6350 virt-aa-helper: Remove PATH_MAX sized stack allocations 2011-04-05 08:55:27 +02:00
Matthias Bolte
859efe7f88 ebtables: Remove PATH_MAX sized stack allocation 2011-04-05 08:55:27 +02:00
Matthias Bolte
57162db82c pci: Remove PATH_MAX sized stack allocations
Use virAsprintf instead of snprintf.
2011-04-05 08:55:27 +02:00
Matthias Bolte
1573158190 Remove PATH_MAX sized stack allocations related to virFileBuildPath
Make virFileBuildPath operate on the heap instead of the stack. It
allocates a buffer instead of expecting a preexisting buffer.
2011-04-05 08:55:27 +02:00
Matthias Bolte
bb3fa04183 vmx: Use case-insensitive compare functions for all content 2011-04-05 08:43:23 +02:00
Matthias Bolte
81800ff647 vmx: Support persistent CPU shares 2011-04-05 08:40:57 +02:00
Markus Groß
fb92307f0d Add autostart support to libxl driver
The domainSetAutostart function is nearly identical to the one from qemu.
2011-04-04 17:28:37 -06:00
Jesse Cook
33da939b0f Allow relative path for qemu backing file
This patch enables the relative backing file path support provided by
qemu-img create.

If a relative path is specified for the backing file, it is converted
to an absolute path using the storage pool path. The absolute path is
used to verify that the backing file exists. If the backing file exists,
the relative path is allowed and will be provided to qemu-img create.
2011-04-04 16:37:58 -06:00
Eric Blake
0d166c6b7c build: detect potentential uninitialized variables
Even with -Wuninitialized (which is part of autobuild.sh
--enable-compile-warnings=error), gcc does NOT catch this
use of an uninitialized variable:

{
  if (cond)
    goto error;
  int a = 1;
error:
  printf("%d", a);
}

which prints 0 (supposing the stack started life wiped) if
cond was true.  Clang will catch it, but we don't use clang
as often.  Using gcc -Wjump-misses-init catches it, but also
gives false positives:

{
  if (cond)
    goto error;
  int a = 1;
  return a;
error:
  return 0;
}

Here, a was never used in the scope of the error block, so
declaring it after goto is technically fine (and clang agrees).
However, given that our HACKING already documents a preference
to C89 decl-before-statement, the false positive warning is
enough of a prod to comply with HACKING.

[Personally, I'd _really_ rather use C99 decl-after-statement
to minimize scope, but until gcc can efficiently and reliably
catch scoping and uninitialized usage bugs, I'll settle with
the compromise of enforcing a coding standard that happens to
reject false positives if it can also detect real bugs.]

* acinclude.m4 (LIBVIRT_COMPILE_WARNINGS): Add -Wjump-misses-init.
* src/util/util.c (__virExec): Adjust offenders.
* src/conf/domain_conf.c (virDomainTimerDefParseXML): Likewise.
* src/remote/remote_driver.c (doRemoteOpen): Likewise.
* src/phyp/phyp_driver.c (phypGetLparNAME, phypGetLparProfile)
(phypGetVIOSFreeSCSIAdapter, phypVolumeGetKey)
(phypGetStoragePoolDevice)
(phypVolumeGetPhysicalVolumeByStoragePool)
(phypVolumeGetPath): Likewise.
* src/vbox/vbox_tmpl.c (vboxNetworkUndefineDestroy)
(vboxNetworkCreate, vboxNetworkDumpXML)
(vboxNetworkDefineCreateXML): Likewise.
* src/xenapi/xenapi_driver.c (getCapsObject)
(xenapiDomainDumpXML): Likewise.
* src/xenapi/xenapi_utils.c (createVMRecordFromXml): Likewise.
* src/security/security_selinux.c (SELinuxGenNewContext):
Likewise.
* src/qemu/qemu_command.c (qemuBuildCommandLine): Likewise.
* src/qemu/qemu_hotplug.c (qemuDomainChangeEjectableMedia):
Likewise.
* src/qemu/qemu_process.c (qemuProcessWaitForMonitor): Likewise.
* src/qemu/qemu_monitor_text.c (qemuMonitorTextGetPtyPaths):
Likewise.
* src/qemu/qemu_driver.c (qemudDomainShutdown)
(qemudDomainBlockStats, qemudDomainMemoryPeek): Likewise.
* src/storage/storage_backend_iscsi.c
(virStorageBackendCreateIfaceIQN): Likewise.
* src/node_device/node_device_udev.c (udevProcessPCI): Likewise.
2011-04-04 11:26:29 -06:00
Daniel Veillard
d17e438ad3 Release of libvirt-0.9.0
* configure.ac docs/news.html.in libvirt.spec.in: update for the release
* po/*.po*: update polish translation and regenerate
2011-04-04 20:15:45 +08:00
Wen Congyang
4a3976211d fix memory leak in qemuProcessHandleGraphics()
If strdup("x509dname") or strdup("saslUsername") success, but
strdup(x509dname) or strdup(saslUsername) failed, subject->nidentity
is not the num elements of subject->identities, and we will leak some
memory.
2011-04-03 09:13:53 +08:00
Wen Congyang
19f916a764 do not lock vm while allocating memory
There is no need to lock vm while allocating memory. If allocating
memory failed, we forgot to unlock vm.
2011-04-03 09:13:46 +08:00
Eric Blake
d958874780 docs: fix typo
* docs/formatdomain.html.in: Fix KVM name.
2011-04-01 16:18:18 -06:00
Eric Blake
b5ec89d955 docs: correct invalid xml
* docs/internals.html.in: Fix xml errors.
* docs/formatstorageencryption.html.in: Likewise.
* docs/drvesx.html.in: Likewise.
* docs/archnetwork.html.in: Likewise.
* docs/logging.html.in: Likewise.
* docs/drvvmware.html.in: Likewise.
* docs/api.html.in: Likewise.
* docs/formatnwfilter.html.in: Likewise.
* docs/formatdomain.html.in: Likewise.
* docs/windows.html.in: Likewise.
2011-04-01 16:03:11 -06:00
Eric Blake
da3c471467 virsh: fix mingw failure on creating nonblocking pipe
* .gnulib: Update to latest, for nonblocking module.
* bootstrap.conf (gnulib_modules): Add nonblocking.
* src/util/util.c (virSetBlocking): Defer to gnulib.
2011-04-01 08:43:10 -06:00
Daniel Veillard
03ede2f69d Fix libxl driver startup
When you happen to have a libvirtd binary compiled with the
libxenlight driver (say you have installed xen-4.1 libraries)
but not running a xen enabled system, then libvirtd fails to start.

The cause is that libxlStartup() returns -1 when failing to initialize
the library, and this propagates to virStateInitialize() which consider
this a failure. We should only exit libxlStartup with an error code
if something like an allocation error occurs, not if the driver failed
to initialize.

* src/libxl/libxl_driver.c: fix libxlStartup() to not return -1
  when failing to initialize the libxenlight library
2011-04-01 19:30:53 +08:00
Jiri Denemark
1e8f20799c virsh: Fix documentation for memtune command
Commit 78ba748ef1 claims to fix
documentation for swap_hard_limit virsh memtune option but it only fixes
documentation in formatdomain.html and libvirt.h. This patch completes
the task by fixing "virsh help memtune" output and memtune section of
virsh man page.
2011-04-01 11:31:10 +02:00