Commit Graph

6557 Commits

Author SHA1 Message Date
Eric Blake
02c39a2f6d build: fix gitignore sorting
Make it so we don't have to 'git add -f' particular files like
po/POTFILES.in all the time (tested by fixing one of our
special-case files as part of the patch).

* .gnulib: Update to latest.
* bootstrap: Resync from coreutils.
* .gitignore: Sort whitelist entries correctly, including ignoring
files rather than directories.
* m4/virt-compile-warnings.m4: Convert tabs to space.
2011-04-07 15:03:53 -06:00
Laine Stump
f25d064ead docs: add an IPv6 address to network XML examples
It was just pointed out that, although I added documentation for the
IPv6 additions to the network XML, I neglected to use those additions
in the examples. This patch adds an IPv6 address to each of the
examples except for the "default" network, since that is a faithful
reproduction of the default network config that's automatically
installed, which doesn't include any IPv6 address (for good reason -
because there is no such thing as IPv6 NAT, there is no one IPv6
address that would work for all installations).
2011-04-07 12:51:47 -04:00
Markus Groß
a7a4414b75 Add domainSet/GetSchedulerParameters to libxl driver
Libxenlight currently only supports the credit scheduler.
Therefore setting or getting a parameter of other
schedulers raise an error (for now).
2011-04-07 10:23:19 -06:00
Osier Yang
a73bbfc8be qemu: Remove the managed state file only if restoring succeeded
1) Both "qemuDomainStartWithFlags" and "qemuAutostartDomain" try to
restore the domain from managedsave'ed image if it exists (by
invoking "qemuDomainObjRestore"), but it unlinks the image even
if restoring fails, which causes data loss. (This problem exists
for "virsh managedsave dom; virsh start dom").

The fix for is to unlink the managed state file only if restoring
succeeded.

2) For "virsh save dom; virsh restore dom;", it can cause data
corruption if one reuse the saved state file for restoring. Add
doc to tell user about it.

3) In "qemuDomainObjStart", if "managed_save" is NULL, we shouldn't
fallback to start the domain, skipping it to cleanup as a incidental
fix. Discovered by Eric.
2011-04-07 16:58:26 +08:00
Wen Congyang
a4efb2e335 reattach pci devices when qemuPrepareHostdevPCIDevices() failed
Reattach all pci devices that we detached when qemuPrepareHostdevPCIDevices()
failed.
2011-04-07 13:09:46 +08:00
Wen Congyang
4e8969ebcf reattach pci device when pciBindDeviceToStub() failed
We should bind pci device to original driver when pciBindDeviceToStub() failed.
If the pci device is not bound to any driver before calling pciBindDeviceToStub(),
we should only unbind it from pci-stub. If it is bound to pci-stub, we should not
unbind it from pci-stub.
2011-04-07 13:09:46 +08:00
Wen Congyang
9121b1930f rename pciUnBindDeviceFromStub() to pciUnbindDeviceFromStub() and float it up
This patch do the following things:
1. rename the function as 'Unbind' is better than 'UnBind'.
2. pciUnbindDeviceFromStub() will be used in the function pciBindDeviceToStub() in
   next patch. Float it up, instead of having to have a forward declaration
2011-04-07 13:09:46 +08:00
Wen Congyang
115498597a remove devices from driver->activePciHostdevs when qemuPrepareHostdevPCIDevices() failed
We should not mark pci devices as active when qemuPrepareHostdevPCIDevices()
failed.
2011-04-07 13:09:45 +08:00
Wen Congyang
d5981f1caf pci: avoid invalid free, init path to NULL
This bug was introduce by commit 57162db8, and it will cause libvirtd crashed.
2011-04-07 13:09:39 +08:00
Eric Blake
f6447e8a54 build: avoid compiler warning on cygwin
In file included from util/threads.c:31:
util/threads-pthread.c: In function 'virThreadSelfID':
util/threads-pthread.c:214: warning: cast from function call of type 'pthread_t' to non-matching type 'int' [-Wbad-function-cast]

* src/util/threads-pthread.c (virThreadSelfID) [!SYS_gettid]:
Add intermediate cast to silence gcc.
2011-04-06 17:07:23 -06:00
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