The way LIBVIRT_VERSION_INFO is calculated has a timebomb that
will cause us to accidentally break soname when we change the
major version number to a non-zero value !
Given CURRENT:REVISION:AGE, libtool will generate
libvirt.so.($CURRENT-$AGE).$AGE.$REVISION
We set CURRENT to be MAJOR+MINOR and AGE to $MINOR, so as
soon as MAJOR changes to non-zero, we get libvirt.so.1
as the soname, eg 1.3.9 would create libvirt.so.1.3.9
Looks natural but is not ABI compatible with libvirt.so.0.x.y
The fix is to set CURRENT to always be exactly the same
as AGE. We want to have the major version reflected in
the so symlinks though. So then we set AGE to MAJOR*1000+MINOR
eg, so 1.3.9 would create libvirt.so.0.1003.9 and libvirt
2.51.3 would create libvirt.so.0.2051.3
Osier Yang [Fri, 3 Aug 2012 15:48:05 +0000 (23:48 +0800)]
Destroy virdomainlist.[ch]
As the consensus in:
https://www.redhat.com/archives/libvir-list/2012-July/msg01692.html,
this patch is to destroy conf/virdomainlist.[ch], folding the
helpers into conf/domain_conf.[ch].
* src/Makefile.am:
- Various indention fixes incidentally
- Add macro DATATYPES_SOURCES (datatypes.[ch])
- Link datatypes.[ch] for libvirt_lxc
* src/conf/domain_conf.c:
- Move all the stuffs from virdomainlist.c into it
- Use virUnrefDomain and virUnrefDomainSnapshot instead of
virDomainFree and virDomainSnapshotFree, which are defined
in libvirt.c, and we don't want to link to it.
- Remove "if" before "free" the object, as virObjectUnref
is in the list "useless_free_options".
* src/conf/domain_conf.h:
- Move all the stuffs from virdomainlist.h into it
- s/LIST_FILTER/LIST_DOMAINS_FILTER/
* src/libxl/libxl_driver.c:
- s/LIST_FILTER/LIST_DOMAINS_FILTER/
- no (include "virdomainlist.h")
libvirt creates invalid commands if wrong locale is selected. For
example with locale that uses comma as a decimal point, JSON commands
created with decimal numbers are invalid because comma separates the
entries in JSON. Fortunately even when decimal point is affected,
thousands grouping is not, because for grouping to be enabled with
*printf, there has to be an apostrophe flag specified (and supported).
This patch adds specific internal function for converting doubles to
strings with C locale.
Asad Saeed [Mon, 13 Aug 2012 20:21:10 +0000 (13:21 -0700)]
sanlock: don't unlink lockspace if registration fails
This is a patch for bug 847848
If registering an existing lockspace with the sanlock daemon
returns an error, libvirt should not proceed to unlink the lockspace.
Cole Robinson [Sat, 11 Aug 2012 18:45:45 +0000 (14:45 -0400)]
virsh: Convert '<cmd> --help' to 'help <cmd>'
Often times I find myself halfway through typing a long command when
I want to see 'help' output. I instinctively append '--help' to the
command I'm typing, only to get an error:
This patch makes --help work in a pretty hacky way. One missing piece
here is that --help isn't listed as an option in the actual 'help <cmd>'
output, but maybe this can be a starting point for someone.
Cole Robinson [Sat, 11 Aug 2012 19:00:46 +0000 (15:00 -0400)]
virsh.c: Fix compiler warning
For some reason I only get this after applying subsequent upcoming
patches that touch virsh, but don't seem to actually cause the warning.
virsh.c: In function ‘vshCommandParse’:
virsh.c:2014:46: error: ‘opt_index’ may be used uninitialized in this function [-Werror=maybe-uninitialized]
cc1: all warnings being treated as errors
Frido Roose [Mon, 13 Aug 2012 10:54:38 +0000 (12:54 +0200)]
Release only specific sanlock resource
This is a patch for bug 826704
All sanlock resources get released when hot-dettaching a disk from the domain
because virLockManagerSanlockRelease uses the wrong function parameters/flags.
With the patch only the resources that should be released are cleaned up.
Peter Krempa [Thu, 9 Aug 2012 13:12:12 +0000 (15:12 +0200)]
virterror: Add error message for unsupported operations.
This patch introduces a new error code VIR_ERR_OPERATION_UNSUPPORTED to
mark error messages regarding operations that failed due to lack of
support on the hypervisor or other than libvirt issues.
The code is first used in reporting error if qemu does not support block
IO tuning variables yielding error message:
error: Unable to get block I/O throttle parameters
error: Operation not supported: block_io_throttle field
'total_bytes_sec' missing in qemu's output
instead of:
error: Unable to get block I/O throttle parameters
error: internal error cannot read total_bytes_sec
Laine Stump [Fri, 10 Aug 2012 21:14:21 +0000 (17:14 -0400)]
build: fix binary location in stap files --with-driver-modules
libvirt_qemu_probes.stp stopped working after switching to a build
that used --with-driver-modules. This was because the symbols listed
int libvirt_qemu_probes.stp are no longer in $(bindir)/libvirtd, but
are now in $(libdir)/connection-driver/libvirt_driver_qemu.so.
This patch enhances dtrace2systemtap.pl (which generates the .stp
files from .d files) to look for a new "module" setting in the
comments of the .d file (similar to the existing "binary" setting),
and to look for a --with-modules option. If the --with-modules option
is set *and* a "module" setting is present in the .d file, the process
name for the stap line is set to
$libdir/$module
If either of these isn't true, it reverts to the old behavior.
src/Makefile.am was also modified to add the --with-modules option
when the build calls for it, and src/libvirt_qemu_probes.d has added a
"module" line pointing to the correct .so file for the qemu driver.
List:
- some old libvir/libvirt rename leftovers (the only problem can be
if somebody parses 'virsh version' output really badly)
- remove pointless tags specified in some pages that are not used
This patch makes search.php autogenerated from search.php.in, thus
removing hardcoded menus, footer etc. and the search.php is added to
.gitignore.
There is new rule added for *.php files (to make it bit less
hardcoded) that takes *.php.code.in and injects it inside the
generated *.php (xslt was not happy about php code in the source xml).
docs: fix 404 page when fetched from different location
Error 404 page had relative paths specified for both the image and
stylesheets which caused a problem when requested URL included a
subfolder (e.g. http://libvirt.org/asdf/asdf ). This patch corrects
this behaviour by modifying href_base to '/' (for style-sheets) and
changing the src of the image (to be '/' always).
Laine Stump [Thu, 9 Aug 2012 06:18:23 +0000 (02:18 -0400)]
nwfilter: fix crash during filter define when lxc driver failed startup
The meat of this patch is just moving the calls to
virNWFilterRegisterCallbackDriver from each hypervisor's "register"
function into its "initialize" function. The rest is just code
movement to allow that, and a new virNWFilterUnRegisterCallbackDriver
function to undo what the register function does.
The long explanation:
There is an array in nwfilter called callbackDrvArray that has
pointers to a table of functions for each hypervisor driver that are
called by nwfilter. One of those function pointers is to a function
that will lock the hypervisor driver. Entries are added to the table
by calling each driver's "register" function, which happens quite
early in libvirtd's startup.
Sometime later, each driver's "initialize" function is called. This
function allocates a driver object and stores a pointer to it in a
static variable that was previously initialized to NULL. (and here's
the important part...) If the "initialize" function fails, the driver
object is freed, and that pointer set back to NULL (but the entry in
nwfilter's callbackDrvArray is still there).
When the "lock the driver" function mentioned above is called, it
assumes that the driver was successfully loaded, so it blindly tries
to call virMutexLock on "driver->lock".
BUT, if the initialize never happened, or if it failed, "driver" is
NULL. And it just happens that "lock" is always the first field in
driver so it is also NULL.
Boom.
To fix this, the call to virNWFilterRegisterCallbackDriver for each
driver shouldn't be called until the end of its (*already guaranteed
successful*) "initialize" function, not during its "register" function
(which is currently the case). This implies that there should also be
a virNWFilterUnregisterCallbackDriver() function that is called in a
driver's "shutdown" function (although in practice, that function is
currently never called).
Matthias Bolte [Sun, 5 Aug 2012 20:11:50 +0000 (22:11 +0200)]
esx: Implement network driver
An ESX server has one or more PhysicalNics that represent the actual
hardware NICs. Those can be listed via the interface driver.
A libvirt virtual network is mapped to a HostVirtualSwitch. On the
physical side a HostVirtualSwitch can be connected to PhysicalNics.
On the virtual side a HostVirtualSwitch has HostPortGroups that are
mapped to libvirt virtual network's portgroups. Typically there is
HostPortGroups named 'VM Network' that is used to connect virtual
machines to a HostVirtualSwitch. A second HostPortGroup typically
named 'Management Network' is used to connect the hypervisor itself
to the HostVirtualSwitch. This one is not mapped to a libvirt virtual
network's portgroup. There can be more HostPortGroups than those
typical two on a HostVirtualSwitch.
The virtual counterparts of the PhysicalNic is the HostVirtualNic for
the hypervisor and the VirtualEthernetCard for the virtual machines
that are grouped into HostPortGroups.
The currently implemented network driver can list, define and undefine
HostVirtualSwitches including HostPortGroups for virtual machines.
Existing HostVirtualSwitches cannot be edited yet. This will be added
in a followup patch.
Matthias Bolte [Sat, 4 Aug 2012 17:56:17 +0000 (19:56 +0200)]
esx: Fix dynamic deep copy
The static deep copy allocates storage for the copy. The dynamic
version injected the dynamic dispatch after the allocation. This
triggered the invalid argument check in the dynamically dispatched
deep copy call. The deep copy function expects its dest parameter
to be a pointer to a NULL-pointer. This expectation wasn't met due
to the dispatching deep copy doing the allocation before the call.
Fix this by dynamically dispatching to the correct type before the
allocation.
Stefan Berger [Thu, 9 Aug 2012 20:17:13 +0000 (16:17 -0400)]
nwfilter: remove target table before renaming it
Remove the target table before renaming a table to it, i.e.,
remove table B before renaming A to B. This makes the
renaming more robust against unconnected left-over tables.
Add APIs for obtaining the unique ID of LVM & SCSI volumes
Both LVM volumes and SCSI LUNs have a globally unique
identifier associated with them. It is useful to be able
to query this identifier to then perform disk locking,
rather than try to figure out a stable pathname.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Jiri Denemark [Thu, 2 Aug 2012 10:11:20 +0000 (12:11 +0200)]
qemu: Fix debug message in p2p migration
When entering "confirm" phase, we are interested in the value of
cancelled rather then ret variable which was interesting before "finish"
phase and didn't change since then.
Jiri Denemark [Fri, 3 Aug 2012 16:34:06 +0000 (18:34 +0200)]
qemu: Migrate at unlimited speed by default
Previously, qemu did not respond to monitor commands during migration if
the limit was too high. This prevented us from raising the limit
earlier. The qemu issue seems to be fixed (according to my testing) and
we may remove the 32Mb/s limit.
Peter Krempa [Thu, 9 Aug 2012 07:58:05 +0000 (09:58 +0200)]
qemu: Refactor parsing of block device IO tuning parameters.
This patch refactors the JSON parsing function that extracts the block
IO tuning parameters from qemu's output. The most impacting change
concerns the error message that is returned if the reply from qemu does
not contain the needed data. The data for IO parameter tuning were added
in qemu 1.1 and the previous error message was confusing.
This patch also breaks long lines and extracts a multiple time used code
pattern to a macro.
Peter Krempa [Tue, 17 Jul 2012 12:25:34 +0000 (14:25 +0200)]
remote: Clean up coding style and refactor remote connection opening
Remove spaces before function calls and some other coding nits in some
parts of the remote driver and refactor getting of URI argument
components into variables used by libvirt later on.
Peter Feiner [Wed, 8 Aug 2012 20:59:41 +0000 (16:59 -0400)]
Fix errno check, prevent spurious errors under heavy load
From man poll(2), poll does not set errno=EAGAIN on interrupt, however
it does set errno=EINTR. Have libvirt retry on the appropriate errno.
Under heavy load, a program of mine kept getting libvirt errors 'poll on
socket failed: Interrupted system call'. The signals were SIGCHLD from
processes forked by threads unrelated to those using libvirt.
Guannan Ren [Wed, 8 Aug 2012 07:06:33 +0000 (15:06 +0800)]
qemu: add two qemu caps for lsi and virtio-scsi SCSI controllers
Rename qemuDefaultScsiControllerModel to qemuCheckScsiControllerModel.
When scsi model is given explicitly in XML(model > 0) checking if the
underlying QEMU supports it or not first, raise an error on checking
failure.
When the model is not given(mode <= 0), return LSI by default, if
the QEMU doesn't support it, raise an error.
Guannan Ren [Wed, 8 Aug 2012 06:25:24 +0000 (14:25 +0800)]
qemu: add capabilities flags related to scsi controller
QEMU_CAPS_SCSI_LSI
set the flag when "lsi53c895a", bus PCI, alias "lsi" in
the output of "qemu -device ?"
-device lsi in qemu command line
QEMU_CAPS_VIRTIO_SCSI_PCI
set the flag when "name "virtio-scsi-pci", bus PCI" in
the output of qemu devices query.
-device virtio-scsi-pci in qemu command line
If a caller to virCommandRun doesn't ask for the exitstatus of the
program it's running, the virCommand functions assume that they should
log an error message and return failure if the exit code isn't
0. However, only the commandline and exit status are logged, while
potentially useful information sent by the program to stderr is
discarded.
Fortunately, virCommandRun is already checking if the caller had asked
for stderr to be saved and, if not, sets things up to save it in
*cmd->errbuf. This makes it fairly simple for virCommandWait to
include *cmd->errbuf in the error log (there are still other callers
that don't setup errbuf, and even virCommandRun won't set it up if the
command is being daemonized, so we have to check that it's non-zero).
Occasionally some test cases will (accidentally) try to spawn
libvirtd. Set the LIBVIRT_AUTOSTART=0 environment variable to
ensure the remote driver never tries autostart.
Don't check the 'connect' command in virsh-all test
The 'virsh-all' test case will invoke each virsh command with
no args. With the 'connect' command this causes virsh to try
to connect to the default URI, which in turn tries to spawn
libvirtd. This is not something we want todo in the test suite,
so skip the 'connect' command.
Switch virDomainObjPtr to use the virObject APIs for reference
counting. The main change is that virObjectUnref does not return
the reference count, merely a bool indicating whether the object
still has any refs left. Checking the return value is also not
mandatory.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The code is significantly simplified, since the mutex in the
virConnectPtr object now only needs to be held when accessing
the per-connection virError object instance. All other operations
are completely lock free.
* src/datatypes.c, src/datatypes.h, src/libvirt.c: Convert
public datatypes to use virObject
* src/conf/domain_event.c, src/phyp/phyp_driver.c,
src/qemu/qemu_command.c, src/qemu/qemu_migration.c,
src/qemu/qemu_process.c, src/storage/storage_driver.c,
src/vbox/vbox_tmpl.c, src/xen/xend_internal.c,
tests/qemuxml2argvtest.c, tests/qemuxmlnstest.c,
tests/sexpr2xmltest.c, tests/xmconfigtest.c: Convert
to use virObjectUnref/virObjectRef
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This introduces a fairly basic reference counted virObject type
and an associated virClass type, that use atomic operations for
ref counting.
In a global initializer (recommended to be invoked using the
virOnceInit API), a virClass type must be allocated for each
object type. This requires a class name, a "dispose" callback
which will be invoked to free memory associated with the object's
fields, and the size in bytes of the object struct.
There is no need to reset fields to 'NULL' or '0' in the
dispose callback, since the entire object will be memset
to 0, and the klass pointer & magic integer fields will
be poisoned with 0xDEADBEEF before being free()d
When creating an instance of an object, one needs simply
pass the virClassPtr eg
Richa Marwaha [Fri, 3 Aug 2012 20:33:07 +0000 (16:33 -0400)]
apparmor: QEMU bridge helper policy updates
This patch provides AppArmor policy updates for the QEMU bridge helper.
The QEMU bridge helper is a SUID executable exec'd by QEMU that drops
capabilities to CAP_NET_ADMIN and adds a tap device to a network bridge.
Richa Marwaha [Fri, 3 Aug 2012 20:33:06 +0000 (16:33 -0400)]
Add -netdev bridge support
This patch adds the support to run the QEMU network helper
under unprivileged user. It also adds the support for
attach-interface option in virsh to run under unprivileged
user.
Eric Blake [Fri, 3 Aug 2012 23:15:00 +0000 (17:15 -0600)]
virrandom: make virRandomInitialize an automatic one-shot
All callers used the same initialization seed (well, the new
viratomictest forgot to look at getpid()); so we might as well
make this value automatic. And while it may feel like we are
giving up functionality, I documented how to get it back in the
unlikely case that you actually need to debug with a fixed
pseudo-random sequence. I left that crippled by default, so
that a stray environment variable doesn't cause a lack of
randomness to become a security issue.
* src/util/virrandom.c (virRandomInitialize): Rename...
(virRandomOnceInit): ...and make static, with one-shot call.
Document how to do fixed-seed debugging.
* src/util/virrandom.h (virRandomInitialize): Drop prototype.
* src/libvirt_private.syms (virrandom.h): Don't export it.
* src/libvirt.c (virInitialize): Adjust caller.
* src/lxc/lxc_controller.c (main): Likewise.
* src/security/virt-aa-helper.c (main): Likewise.
* src/util/iohelper.c (main): Likewise.
* tests/seclabeltest.c (main): Likewise.
* tests/testutils.c (virtTestMain): Likewise.
* tests/viratomictest.c (mymain): Likewise.
Eric Blake [Fri, 3 Aug 2012 19:16:42 +0000 (13:16 -0600)]
build: drop conditional use of mdns code
Commit 1f6f723 missed a step. At first I was worried that scrubbing
the conditionals would lead to a runtime failure when compiled without
avahi, but my testing makes it appear that the runtime error will only
occur if the .conf files in /etc request mdns advertisement; and the
old behavior was to silently ignore the request, so this is actually
a better behavior of only failing when the config requests the
impossible.
* src/rpc/virnetserver.c: Drop HAVE_AVAHI conditionals; all
callers already passed NULL if mdns_adv was not configured.
Michal Privoznik [Tue, 17 Jul 2012 16:38:47 +0000 (18:38 +0200)]
qemu: Set reasonable RSS limit on domain startup
If there's a memory leak in qemu or qemu is exploited the host's
system will sooner or later start trashing instead of killing
the bad process. This however has impact on performance and other
guests as well. Therefore we should set a reasonable RSS limit
even when user hasn't set any. It's better to be secure by default.
Initially I thought to skip parsing the UUID in xenParseXM() when
not present in the configuration, but this results in a UUID of
all zeros since it is never set
Peter Krempa [Fri, 3 Aug 2012 09:20:29 +0000 (11:20 +0200)]
conf: Remove console stream callback only when freeing console helper
Commit ba226d334acbc49f6751b430e0c4e00f69eef6bf tried to fix crash of
the daemon when a domain with an open console was destroyed. The fix was
wrong as it tried to remove the callback also when the stream was
aborted, where at that point the fd stream driver was already freed and
removed.
This patch clears the callbacks with a helper right before the hash is
freed, so that it doesn't interfere with other codepaths where the
stream object is freed.
Laine Stump [Fri, 3 Aug 2012 04:47:38 +0000 (00:47 -0400)]
build: fix "make rpm"
make rpm was failing with the following error:
Entering directory `/home/laine/devel/libvirt/tests'
make[2]: *** No rule to make target `viratomicdata.h',
needed by `distdir'. Stop.
viratomicdata.h is listed in tests/Makefile.am as a dependency of
viratomictest, but doesn't exist, is never referenced, and removing
that dependency permits make rpm to complete successfully.
Peter Krempa [Fri, 3 Aug 2012 09:45:12 +0000 (11:45 +0200)]
remote: Fill snapshot argument in remoteDomainSnapshotListAllChildren
The remote driver did not fill the required snapshot parent argument in
the RPC call structure that caused a client crash when trying to use
this new API.
Osier Yang [Mon, 23 Jul 2012 08:18:57 +0000 (16:18 +0800)]
qemu: Allow to attach/detach controller device persistently
* src/conf/domain_conf.c:
- Add virDomainControllerFind to find controller device by type
and index.
- Add virDomainControllerRemove to remove the controller device
from maintained controler list.
* src/conf/domain_conf.h:
- Declare the two new helpers.
* src/libvirt_private.syms:
- Expose private symbols for the two new helpers.
* src/qemu/qemu_driver.c:
- Support attach/detach controller device persistently
* src/qemu/qemu_hotplug.c:
- Use the two helpers to simplify the codes.
The access, birth, modification and change times are added to
storage volumes and corresponding xml representations. This
shows up in the XML in this format:
Ján Tomko [Thu, 2 Aug 2012 11:23:16 +0000 (13:23 +0200)]
Update xml schemas according to libvirt source
capability.rng: Guest features can be in any order.
nodedev.rng: Added <driver> element, <capability> phys_function and
virt_functions for PCI devices.
storagepool.rng: Owner or group ID can be -1.
schema tests: New capabilities and nodedev files; changed owner and
group to -1 in pool-dir.xml.
storage_conf: Print uid_t and gid_t as signed to storage pool XML.
Eric Blake [Wed, 1 Aug 2012 23:42:51 +0000 (17:42 -0600)]
build: add stubs so mdns code can be unconditionally compiled
The recent changes to the testsuite to validate exported symbols
flushed out a case of unconditionally exporting symbols that
were only conditionally compiled under HAVE_AVAHI.
* src/Makefile.am (libvirt_net_rpc_server_la_SOURCES): Compile
virnetservermdns unconditionally.
* configure.ac (HAVE_AVAHI): Drop unused automake conditional.
* src/rpc/virnetservermdns.c: Add fallbacks when Avahi is not
present.
One of our latest commits fbe87126 introduced this nasty typo:
func(vmdef, ...); where func() dereference vmdef->ncontrollers,
and vmdef was initialized to NULL. This leaves us with unconditional
immediate segfault. It should be vm->def instead.
Jiri Denemark [Thu, 2 Aug 2012 13:41:23 +0000 (15:41 +0200)]
daemon: Portable auto-detection of driver module directory
When running libvirtd from a build directory on a system with unmodified
libtool, libvirtd's binary is not renamed as "lt-libvirtd". Check for
"/daemon/.libs/libvirtd" in addition to "lt-libvirtd".
Jiri Denemark [Thu, 2 Aug 2012 10:25:51 +0000 (12:25 +0200)]
build: Rename security manager library
Security manager is not a dynamically loadable driver. Let's avoid the
confusion by renaming libvirt_driver_security library as
libvirt_security_manager.
Jiri Denemark [Thu, 2 Aug 2012 12:10:31 +0000 (14:10 +0200)]
build: Link security manager into libvirt.so
Security manager is not a dynamically loadable driver, it's a common
infrastructure similar to util, conf, cpu, etc. used by individual
drivers. Such code is allowed to be linked into libvirt.so.
On Debian/Ubuntu, one of the libraries libvirt (indirectly) links
with exports a symbol named 'base64_encode'. This takes precedence
over GNULIB's base64_encode function during linking. Unfortunately
they of course have different API semantics. To avoid this problem
use a few #defines in config.h to rename the GNULIB provided
function to have a 'libvirt_gl_' prefix
Rewrite virAtomic APIs using GLib's atomic ops code
There are a few issues with the current virAtomic APIs
- They require use of a virAtomicInt struct instead of a plain
int type
- Several of the methods do not implement memory barriers
- The methods do not implement compiler re-ordering barriers
- There is no Win32 native impl
The GLib library has a nice LGPLv2+ licensed impl of atomic
ops that works with GCC, Win32, or pthreads.h that addresses
all these problems. The main downside to their code is that
the pthreads impl uses a single global mutex, instead of
a per-variable mutex. Given that it does have a Win32 impl
though, we don't expect anyone to seriously use the pthread.h
impl, so this downside is not significant.
* .gitignore: Ignore test case
* configure.ac: Check for which atomic ops impl to use
* src/Makefile.am: Add viratomic.c
* src/nwfilter/nwfilter_dhcpsnoop.c: Switch to new atomic
ops APIs and plain int datatype
* src/util/viratomic.h: inline impls of all atomic ops
for GCC, Win32 and pthreads
* src/util/viratomic.c: Global pthreads mutex for atomic
ops
* tests/viratomictest.c: Test validate to validate safety
of atomic ops.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Remove the use of a manually run virLogStartup and
virNodeSuspendInitialize methods. Instead make sure they
are automatically run using VIR_ONCE_GLOBAL_INIT
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Peter Krempa [Tue, 3 Jul 2012 13:30:25 +0000 (15:30 +0200)]
domain_conf: Add helpers to verify if device configuration is valid
This patch adds helpers that validate domain's device configuration.
This will be needed later on to verify devices being hot-plugged to
guests. If the guest has no USB bus, then it's not valid to plug a USB
device to that guest.
storage: netfs and iscsi need option srcSpec for resource discovery
The option 'srcSpec' to virsh command find-storage-pool-sources
is optional for logical type of storage pool, but mandatory for
netfs and iscsi type.
When missing the option for netfs and iscsi, libvirt reports XML
parsing error due to null string option srcSpec.
before
error: Failed to find any netfs pool sources
error: (storage_source_specification):1: Document is empty
(null)
after:
error: pool type 'iscsi' requires option --srcSpec for source discovery
One of our latest patches added some files to .gitignore. However,
not in the right place leaving the file not sorted. Since my git
is set up to sort these files contents, fix this issue as it keeps
showing up in git status.
Jiri Denemark [Wed, 1 Aug 2012 07:59:43 +0000 (09:59 +0200)]
build: Link security driver into daemon
Commit aae5cfb69948fddef556f8f5b9f80a444f9c6125 removed security driver
from libvirt_la but forgot to link it into libvirtd in case libvirt is
built without modules.
Daniel Veillard [Wed, 1 Aug 2012 08:10:36 +0000 (16:10 +0800)]
Fix rpm build failures
The 'make check' was rebuilding the binaries just overrided,
so for more safety also override the C program
Also daemon-conf isn't built anymore so remove it from the list
To create a new VM in Parallels Clud Server we should issue
"prlctl create" command, and give path to the directory,
where VM should be created. VM's storage will be in that
directory later. So in this first version find out location
of first VM's hard disk and create VM there.
Dmitry Guryanov [Wed, 1 Aug 2012 03:46:22 +0000 (11:46 +0800)]
parallels: add storage driver
Parallels Cloud Server has one serious discrepancy with libvirt:
libvirt stores domain configuration files in one place, and storage
files in other places (with the API of storage pools and storage volumes).
Parallels Cloud Server stores all domain data in a single directory,
for example, you may have domain with name fedora-15, which will be
located in '/var/parallels/fedora-15.pvm', and it's hard disk image will be
in '/var/parallels/fedora-15.pvm/harddisk1.hdd'.
I've decided to create storage driver, which produces pseudo-volumes
(xml files with volume description), and they will be 'converted' to
real disk images after attaching to a VM.
So if someone creates VM with one hard disk using virt-manager,
at first virt-manager creates a new volume, and then defines a
domain. We can lookup a volume by path in XML domain definition
and find out location of new domain and size of its hard disk.
parallels: implement virDomainDefineXML operation for existing domains
Add parallelsDomainDefineXML function, it works only for existing
domains for the present.
It's too hard to convert libvirt's XML domain configuration into
Parallel's one, so I've decided to compare virDomainDef structures:
current domain definition and the one created from XML, given to
the function. And change only different parameters.
Currently only name, description, number of cpus, memory amount
and video memory can be changed.
Video device and console added, because libvirt supposes that
VM must always have one video device, if there are some
graphics and one console.
parallels: add functions to list domains and get info
Parallels driver is 'stateless', like vmware or openvz drivers.
It collects information about domains during startup using
command-line utility prlctl. VMs in Parallels are identified by UUIDs
or unique names, which can be used as respective fields in
virDomainDef structure. Currently only basic info, like
description, virtual cpus number and memory amount, is implemented.
Querying devices information will be added in the next patches.
Parallels doesn't support non-persistent domains - you can't run
a domain having only disk image, it must always be registered
in system.
Functions for querying domain info have been just copied from
test driver with some changes - they extract needed data from
previously created list of virDomainObj objects.
Parallels Cloud Server is a cloud-ready virtualization
solution that allows users to simultaneously run multiple virtual
machines and containers on the same physical server.
More information can be found here: http://www.parallels.com/products/pcs/
Also beta version of Parallels Cloud Server can be downloaded there.
projects / thirdparty / libvirt.git / log
