Commit eee7bd4e introduced two functions: libxlDiskPathToID and
libxlDiskSectorSize.
However, as they're used only by code under #ifdef __linux__,
on non-Linux platforms it results in errors similar to this:
CC libxl/libvirt_driver_libxl_impl_la-libxl_driver.lo
libxl/libxl_driver.c:5263:1: error: unused function 'libxlDiskPathToID' [-Werror,-Wunused-function]
libxlDiskPathToID(const char *virtpath)
^
libxl/libxl_driver.c:5312:1: error: unused function 'libxlDiskSectorSize' [-Werror,-Wunused-function]
libxlDiskSectorSize(int domid, int devno)
^
2 errors generated.
Fix that by moving these functions under the #ifdef __linux__ block.
This event is emitted when a nodedev XML definition is updated,
like when cdrom media is changed in a cdrom block device.
Also includes node device update event implementation for udev
backend, virsh nodedev-event support, and event-test support
Setting heads to 0 in case that *max_outputs* is not supported while building
command line doesn't have any real effect. It only removes *heads* attribute
from live XML, but after restarting libvirt the default value is restored.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
When starting a guest and copying host vendor cpuid to the guest
cpu, libvirtd would crash if the host cpu contained a NULL vendor
field. Avoid the crash by checking for a valid vendor in the host
cpu before copying the cpuid to the guest cpu.
For completeness, here is a backtrace from the crash
(gdb) bt
f0 0x00007ffff739bf33 in x86DataCpuid (cpuid=0x8, cpuid=0x8,
data=data@entry=0x7fffb800ee78) at cpu/cpu_x86.c:287
f1 virCPUx86DataAddCPUID (data=data@entry=0x7fffb800ee78, cpuid=0x8)
at cpu/cpu_x86.c:355
f2 0x00007ffff739ef47 in x86Compute (host=<optimized out>, cpu=0x7fffb8000cc0,
guest=0x7fffecca7348, message=<optimized out>) at cpu/cpu_x86.c:1580
f3 0x00007fffd2b38e53 in qemuBuildCpuModelArgStr (migrating=false,
hasHwVirt=<synthetic pointer>, qemuCaps=0x7fffb8001040, buf=0x7fffecca7360,
def=0x7fffc400ce20, driver=0x1c) at qemu/qemu_command.c:6283
f4 qemuBuildCpuCommandLine (cmd=cmd@entry=0x7fffb8002f60,
driver=driver@entry=0x7fffc80882c0, def=def@entry=0x7fffc400ce20,
qemuCaps=qemuCaps@entry=0x7fffb8001040, migrating=<optimized out>)
at qemu/qemu_command.c:6445
(gdb) f2
(gdb) p *host_model
$23 = {name = 0x7fffb800ec50 "qemu64", vendor = 0x0, signature = 0, data = {
len = 2, data = 0x7fffb800e720}}
Since we now pick the default USB controller model when parsing
the guest XML, we can get rid of some duplicated code so that
the default model selection happens in one place only.
Add some comments as well.
Now that the default USB controller model is explicit rather
than implicit for i440fx machines, we have to tweak the
conditions for dropping it in order to keep migration towards
libvirt <= 0.9.4 working.
When the user doesn't specify any model for a USB controller,
we use an architecture-dependent default, but we don't reflect
it in the guest XML.
Pick the default USB controller model when parsing the guest
XML instead of when creating the QEMU command line, so that
our choice is saved back to disk.
Usually, this variable is used to hold the return value for a
function of ours. Well, this is not the case. Its use does not
match our pattern and therefore it is very misleading. Drop it
and define an alternative @rc variable, but only in that single
block where it is needed.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This variable is very misleading. We use VIR_FORCE_CLOSE to set
it to -1 and returning it even though it does not refer to a FD
at all. It merely holds 0 or -1. Drop it completely. Also, at the
same time some corner cases are fixed too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1240439
In this function we create a macvtap device and open its tap
device. Possibly multiple times. Now the thing is, if opening the
tap device fails, that is virNetDevMacVLanTapOpen() returns a
negative value, we unroll all the changes BUT return 0 fooling
caller into thinking everything went okay.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Since a9331394 (first release v2.1.0), specifying a manual
security_driver setting in qemu.conf causes the daemon to fail to
start, erroring with 'Duplicate security driver X'.
The duplicate checking was incorrectly comparing every entry
against itself, guaranteeing a false positive.
https://bugzilla.redhat.com/show_bug.cgi?id=1365607
More misunderstanding/mistaken assumptions on my part - I had thought
that a pci-expander-bus could be plugged into any legacy PCI slot, and
that pcie-expander-bus could be plugged into any PCIe slot. This isn't
correct - they can both be plugged ontly into their respective root
buses. This patch adds that restriction.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1358712
libvirt had allowed a dmi-to-pci-bridge to be plugged in anywhere a
normal PCIe endpoint can be connected, but this is wrong - it will
only work if it's plugged into pcie-root (the PCIe root complex) or a
pcie-expander-bus (the qemu device pxb-pcie). This patch adjusts the
connection flags accordingly.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1363648
I apparently misunderstood Marcel's description of what could and
couldn't be plugged into qemu's pxb-pcie controller (known as
pcie-expander-bus in libvirt) - I specifically allowed directly
connecting a pcie-switch-upstream-port, and it turns out that causes
the guest kernel to crash.
This patch forbids such a connection, and updates the xml docs
appropriately.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1361172
The virDomainPCIAddressFlagsCompatible() error logs report that a
device required a controller that accepted standard PCI endpoint
devices, or PCI Express endpoint devices, and if hotplug was required
by the configuration but not provided by the selected controller. But
the wording of the error messages was apparently confusing (according
to the bugzilla report referenced below). On top of that, if the
device was something other than an endpoint device (e.g. a
pcie-switch-downstream-port) the error message was a complete punt -
it would just say that the flags were incorrect.
This patch makes the messages for PCI/PCIe endpoint and hotplug
requirements more clear, and also specifically indicates what was the
device type when it is other than an endpoint device.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1363627
Since the introduction of CMT features (commit v1.3.5-461-gf294b83)
starting a domain with host-model CPU on a host which supports CMT fails
because QEMU complains about unknown 'cmt' feature:
qemu-system-x86_64: CPU feature cmt not found
https://bugzilla.redhat.com/show_bug.cgi?id=1355857
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
By removing a non-migratable feature in a for loop we would fail to drop
every second non-migratable feature if the features array contained
several of them in a row.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Commit 30ce2f0e tried to fix the issue with an incorrect session URI to admin
server but it messed up the checks:
if (geteuid == 0 && VIR_STRDUP(*uristr, "libvirtd:///system") < 0)
return -1;
else if (VIR_STRDUP(*uristr, "libvirtd:///session") < 0)
return -1;
So if a client executed with root privileges tries to connect, its euid is
checked (true) and the correct URI is successfully copied to @uristr (false),
therefore the 'else' branch is taken and @uristr is replaced by the session URI
which for root results in:
Failed to connect socket to '/root/.cache/libvirt/libvirt-admin-sock':
No such file or directory
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Just like we decide on which URI we go with based on EUID for qemu in remote
driver, do a similar thing for admin except we do not spawn a daemon in this
case.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1356858
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Commit b3e4401dc6 introduced a check to ignore an error if the guest
is already terminated. However the check accidentally compared
error.code with VIR_ERR_ERROR, which is an error level, not an error
code. Because of this, almost every error got silently ignored.
Fixes: b3e4401dc6 ("systemd: don't report an error if the guest is
already terminated")
Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Sascha Silbe <silbe@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
When build for architecture that don't use gcc atomic ops but pthread,
it fails to build for armel:
| ../tools/nss/.libs/libnss_libvirt_impl.a(libvirt_nss_la-virobject.o): In function `virClassNew':
| /buildarea2/kkang/builds/qemuarm-Aug03/bitbake_build/tmp/work/armv5e-wrs-linux-gnueabi/libvirt/1.3.5-r0/build/src/../../libvirt-1.3.5/src/util/virobject.c:153: undefined reference to `virAtomicLock'
| ../tools/nss/.libs/libnss_libvirt_impl.a(libvirt_nss_la-virobject.o): In function `virObjectNew':
| /buildarea2/kkang/builds/qemuarm-Aug03/bitbake_build/tmp/work/armv5e-wrs-linux-gnueabi/libvirt/1.3.5-r0/build/src/../../libvirt-1.3.5/src/util/virobject.c:205: undefined reference to `virAtomicLock'
| ../tools/nss/.libs/libnss_libvirt_impl.a(libvirt_nss_la-virobject.o): In function `virObjectUnref':
| /buildarea2/kkang/builds/qemuarm-Aug03/bitbake_build/tmp/work/armv5e-wrs-linux-gnueabi/libvirt/1.3.5-r0/build/src/../../libvirt-1.3.5/src/util/virobject.c:277: undefined reference to `virAtomicLock'
| ../tools/nss/.libs/libnss_libvirt_impl.a(libvirt_nss_la-virobject.o): In function `virObjectRef':
| /buildarea2/kkang/builds/qemuarm-Aug03/bitbake_build/tmp/work/armv5e-wrs-linux-gnueabi/libvirt/1.3.5-r0/build/src/../../libvirt-1.3.5/src/util/virobject.c:298: undefined reference to `virAtomicLock'
| collect2: error: ld returned 1 exit status
It is similar with:
http://libvirt.org/git/?p=libvirt.git;a=commit;h=12dc729
Signed-off-by: Kai Kang <kai.kang@windriver.com>
Unfortunately vz sdk do not provide detail information on migration
progress, only progress percentage. Thus vz driver provides percents
instead of bytes in data fields of virDomainJobInfoPtr.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
The build was failing with:
CCLD lockd.la
libtool: error: can't build i686-pc-cygwin shared library unless -no-undefined is specified
Rather than add yet another $(CYGWIN_EXTRA_LDFLAGS) to all the
impacted *_la_LDFLAGS, it was easier to just pull the extra
flags into ALL libraries via AM_LDFLAGS.
Then, fix lockd_la_LDFLAGS to include AM_LDFLAGS, like all other
libraries.
Signed-off-by: Eric Blake <eblake@redhat.com>
Without XDR_CFLAGS, compilation on Cygwin fails with:
CC libvirt_driver_la-libvirt-stream.lo
In file included from libvirt-stream.c:26:0:
rpc/virnetprotocol.h:9:21: fatal error: rpc/rpc.h: No such file or directory
Signed-off-by: Eric Blake <eblake@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1363773
Imagine that you're creating a transient domain, but for some reason,
starting it fails. That is virLXCProcessStart() returns an error. With
current code, in the error handling code the domain object is removed
from the domain object list, @vm is set to NULL and controls jump to
enjob label where virLXCDomainObjEndJob() is called which dereference vm
leading to instant crash.
The fix is to end the job in the error handling code and only after that
remove the domain from the list and jump onto cleanup label instead of
endjob.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1362349
When adding the ability to build the pool during the start pool processing
using the similar flags as buildPool processing would use, the code was
essentially cut-n-pasted from storagePoolCreateXML. However, that included
a call to virStoragePoolObjRemove which shouldn't happen within the
storagePoolCreate path since that'll remove the pool from the list of
pools only to be rediscovered if libvirtd restarts.
So on failure, just fail and return as we should expect
Doing a load, copy, format cycle on all QEMU capabilities XML files
should make sure we don't forget to update virQEMUCapsNewCopy when
adding new elements to QEMU capabilities.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
There was a missing check for vol->target.encryption being NULL
at one particular place (modified by commit a48c71411) which caused a crash
when user attempted to create a raw volume using a non-raw file volume as
source.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1363636
Signed-off-by: Erik Skultety <eskultet@redhat.com>
In qemu, enabling this feature boils down to adding the following
onto the command line:
-global driver=cfi.pflash01,property=secure,value=on
However, there are some constraints resulting from the
implementation. For instance, System Management Mode (SMM) is
required to be enabled, the machine type must be q35-2.4 or
later, and the guest should be x86_64. While technically it is
possible to have 32 bit guests with secure boot, some non-trivial
CPU flags tuning is required (for instance lm and nx flags must
be prohibited). Given complexity of our CPU driver, this is not
trivial. Therefore I've chosen to forbid 32 bit guests for now.
If there's ever need, we can refine the check later.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This element will control secure boot implemented by some
firmwares. If the firmware used in <loader/> does support the
feature we must tell it to the underlying hypervisor. However, we
can't know whether loader does support it or not just by looking
at the file. Therefore we have to have an attribute to the
element where users can tell us whether the firmware is secure
boot enabled or not.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Since its release of 2.4.0 qemu is able to enable System
Management Module in the firmware, or disable it. We should
expose this capability in the XML. Unfortunately, there's no good
way to determine whether the binary we are talking to supports
it. I mean, if qemu's run with real machine type, the smm
attribute can be seen in 'qom-list /machine' output. But it's not
there when qemu's run with -M none. Therefore we're stuck with
version based check.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
We use 'goto cleanup' for a reason. If a function can exit at
many places but doesn't follow the pattern, it has to copy the
free code in multiple places.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
While no leak was observed yet, there might be one if
virObjectEventClass is ever derived from another class. Because
in that case plain VIR_FREE() will not call dispose() from parent
classes possibly leaking some memory.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
In the cleanup path, @vm cannot be possibly NULL. If it were so,
we would receive SIGSEGV much earlier. At the beginning of the
function we do libxlDomainObjBeginJob(.., vm, ..); and so on.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The virJSONValueArraySize() function return ssize_t (with
possibly returning -1 if the passed json is not an array).
Storing the return value into size_t is possibly dangerous then.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Call the vcpu thread info validation separately to decrease complexity
of returned values by qemuDomainRefreshVcpuInfo.
This function now returns 0 on success and -1 on error. Certain
failures of qemu to report data are still considered as success. Any
error reported now is fatal.
Validate the presence of the thread id according to state of the vCPU
rather than just checking the vCPU count. Additionally put the new
validation code into a separate function so that the information
retrieval can be split from the validation.
Long, long ago before libxl_get_required_shadow_memory() was
made publicly available, its code was copied to the libxl driver
for calculating shadow memory requirements of HVM domains.
Long ago, libxl_get_required_shadow_memory() was exported in
libxl_utils.h and included in xen-devel packages everywhere.
Remove the copied code, which has become stale, and let libxl
provode a proper shadow memory value.
https://bugzilla.redhat.com/show_bug.cgi?id=1356937
Add support for IOThread quota/bandwidth and period parameters for non
session mode. If in session mode, then error out. Uses all the same
places where {vcpu|emulator|global}_{period|quota} are adjusted and
adds the iothread values.
https://bugzilla.redhat.com/show_bug.cgi?id=1356937
Add the definitions to allow for viewing/setting cgroup period and quota
limits for IOThreads.
This is similar to the work done for emulator quota and period by
commit ids 'b65dafa' and 'e051c482'.
Being able to view/set the IOThread specific values is related to more
recent changes adding global period (commmit id '4d92d58f') and global
quota (commit id '55ecdae') definitions and qemu support (commit id
'4e17ff79' and 'fbcbd1b2'). With a global setting though, if somehow
the IOThread value in the cgroup hierarchy was set "outside of libvirt"
to a value that is incompatible with the global value.
Allowing control over IOThread specific values provides the capability
to alter the IOThread values as necessary.
If you invoke virDomainLxcEnterSecurityLabel() on security
model of "none" it will report an error. Logically a "none"
security model should be treated as a no-op, so we should
just return success immediately, instead of an error.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1289391
Rather than pass the whole drive string (which contained the alias),
pass only the alias for the qemuMonitorDriveDel call in the error
path when adding a host device in the monitor fails.
Partial fix for:
https://bugzilla.redhat.com/show_bug.cgi?id=1336225
Similar to the other disk types, add the qemuMonitorDriveDel in the failure
to add/hotplug a USB.
Added a couple of other formatting changes just to have a less cluttered look
Move QEMU_DRIVE_HOST_PREFIX into the qemu_alias.c to dissuade future
callers from using it. Create qemuAliasDiskDriveSkipPrefix in order
to handle the current consumers that desire to check if an alias has
the drive- prefix and "get beyond it" in order to get the disk alias.
Since we already have a function that will generate the drivestr from
the alias, let's use it and remove the qemuDeviceDriveHostAlias.
Move the QEMU_DRIVE_HOST_PREFIX definition into qemu_alias.h
Also alter qemuAliasFromDisk to use the QEMU_DRIVE_HOST_PREFIX instead
of "drive-%s".
Rather than pass the disks[i]->info.alias to qemuMonitorSetDrivePassphrase
and then generate the "drive-%s" alias from that, let's use qemuAliasFromDisk
prior to the call to generate the drive alias and then pass that along
thus removing the need to generate the alias from the monitor code.
Node device lifecycle event API entry points for registering and
deregistering node deivce events, as well as types of events
associated with node device.
These entry points will be used for implementing asynchronous
lifecycle events.
Node device API:
virConnectNodeDeviceEventRegisterAny
virConnectNodeDeviceEventDeregisterAny
virNodeDeviceEventLifecycleType which has events CREATED and DELETED
As commit id 'e2b86f580' notes, when mode=agent possibly setting the
fake reboot flag to true wouldn't be necessary; however, it doesn't
"force" the issue by just ensuring the fake reboot is false, so this
patch adds the explicit setting for the reboot path.
More investigation and details can be found in commit id '8be502fd'
as well as in the archives at:
https://www.redhat.com/archives/libvir-list/2015-April/msg00715.html
Conditional setting of the fake reboot flag should only happen for
the acpi mode shutdown path; however, for the agent mode shutdown,
the fake reboot should be cleared. This patch will essentially revert
commit id '8be502fd', but adds an explicit setting of the flag to false
when using mode=agent while also only conditionally setting the reboot
flag if the guest went away. This also avoids an issue where a shutdown
with reboot semantics is done from agent mode which sets the reboot
flag followed by a shutdown from within the guest which would result
in a reboot due to the fake reboot flag being set. The change will
also properly handle the cases described in the following archive post:
https://www.redhat.com/archives/libvir-list/2015-April/msg00715.html
Commit id '44304c6eb' added the API libxlDomainAttachControllerDevice
inside a conditional LIBXL_HAVE_PVUSB, but called that function outside
the conditional in libxlDomainAttachDeviceLive.
Similarly, the API libxlDomainDetachControllerDevice was added inside a
conditional LIBXL_HAVE_PVUSB, but called outside the conditional in
libxlDomainDetachDeviceLive.
This patch adds the conditional LIBXL_HAVE_PVUSB around those two calls
from within the switch.
Prior to commit 2737aaaf, we allowed every client to connect successfully,
however, if accepting a client would eventually lead to an overcommit of the
limits, we would disconnect it immediately with "Too many active clients,
dropping connection from...". Recent changes refactored the code in a way, that
it is not possible for the client-related callback to be dispatched and the
client to be accepted if the limits wouldn't permit to do so, therefore a check
if a connection should be dropped due to limits violation has become a dead
code that could be removed.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Commit 2737aaaf changed our policy for accepting new clients in a way, that
instead of accepting new clients only to disconnect them immediately, since
that would overcommit the limit, we temporarily disable polling for the
dedicated file descriptor, so any new connection will queue on the socket.
Commit 8b1f0469 then added the possibility to change the limits during runtime
but it didn't re-enable polling for the previously disabled file descriptor,
thus any new connection would still continue to queue on the socket. This patch
forces an update of the services each time the limits were changed in some way.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1357776
Signed-off-by: Erik Skultety <eskultet@redhat.com>
So far, virNetServerCheckLimits was only used to possibly re-enable accepting
new clients that might have previously been disabled due to client limits
violation (max_clients, max_anonymous_clients). This patch refactors
virNetServerAddClient, which is currently the only place where the services get
disabled, in order to use the virNetServerCheckLimits helper instead of
checking the limits by itself.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Since virNetServerAddClient checks for the limits in order to temporarily
suspend the services, thus not accepting any more clients, there is no reason
why virNetServerCheckLimits, which is only responsible for re-enabling
previously disabled services according to the limits, could not do both. To be
able to do that however, it needs to be moved up in the file since it's static
(and because it's just a helper and there's only one caller it should remain
static).
Signed-off-by: Erik Skultety <eskultet@redhat.com>
In case of error, libxlReconnectDomain may call
virDomainObjListRemoveLocked. However it has no local reference on
the domain object, leading to segfault. Get a reference to the domain
object at the start of the function and release it at the end to avoid
problems.
This commit also factorizes code between the error and normal ends.
To sync with virDomainControllerModelUSB, we add two models
in qemuControllerModelUSB 'qusb1' and 'qusb2', but those
models are not supported in qemu driver. So add check in
device post parse to report errors if 'qusb1' and 'qusb2'
are specified.
Signed-off-by: Chunyan Liu <cyliu@suse.com>
libxl configuration files conversion can now handle USB controllers.
When parting libxl config file, USB controllers with type PV are
ignored as those aren't handled.
Signed-off-by: Chunyan Liu <cyliu@suse.com>
When hotplugging a USB device, check if there is an available controller
and port, if not, automatically create a USB controller of version
2.0 and 8 ports.
Signed-off-by: Chunyan Liu <cyliu@suse.com>
Support USB controller hot-plug and hot-unplug.
#virsh attach-device dom usbctrl.xml
#virsh detach-device dom usbctrl.xml
usbctrl.xml example:
<controller type='usb' index='0' model='qusb2'>
Signed-off-by: Chunyan Liu <cyliu@suse.com>
To support USB Controller in xen guest domains, just add
USB controller in domain config xml as following:
<controller type='usb' model='qusb2' ports='4'/>
Signed-off-by: Chunyan Liu <cyliu@suse.com>
According to libxl implementation, it supports pvusb
controller of version 1.1 and version 2.0, and it
supports two types of backend, 'pvusb' (dom0 backend)
and 'qusb' (qemu backend). But currently pvusb backend
is not checked in yet.
To match libxl support, extend usb controller schema
to support two more models: qusb1 (qusb, version 1.1)
and 'qusb2' (qusb version 2.0).
Signed-off-by: Chunyan Liu <cyliu@suse.com>
Let's cleanly differentiate what wiping a volume does for ploop and
other volumes so it's more readable what is done for each one instead of
branching out multiple times in different parts of the same function.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Some functions use volume specification merely to use the target path
from it. Let's change it to pass the path only so that it can be used
for other files than just volumes.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
This is done in order to call them in next patches from each other and
definitions would be missing otherwise.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
When reset was called from a domain that crashed we didn't change the
crashed state into a paused one which could confuse users.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1269575
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Until now we simply errored out when the translation from pool+volume
failed. However, we should instead check whether that disk is needed or
not since there is an option for that.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1168453
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
There is an error reset following the function and check for
startupPolicy before that. Let's reflect those things inside that
function so that future code doesn't have to be that complex.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
When wiping a volume we just rewrite all the data of the volume, not
only the content. Since format gets overridden, we need to recreate the
volume. However we can't do that for every possible format out there.
Since it was only coded for the ploop volume type, let's document what
might be the consequences instead of forbidding it for every other
format out there.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=868771
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
The panic devices with models s390 and pseries are autogenerated.
For backwards compatibility reasons the devices are to be removed
when migrating.
Signed-off-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Ever since virDomainCreateWithFlags() was introduced by de3aadaa
[drivers: add virDomainCreateWithFlags if virDomainCreate exists], the
domain ID retrieved with virDomainGetID() was incorrect for several
drivers after virDomainCreateWithFlags() was called. The API consumer
had to look up the domain anew to retrieve the correct ID.
For the ESX driver, this was fixed in 6139b274 [esx: Update ID after
starting a domain]. For the openvz driver, it was fixed in fd81a097
[openvzDomainCreateWithFlags: set domain id to the correct value]. The
test driver, the OpenNebula driver (removed in the meantime) and the
vbox driver were already updating the domain ID correctly in
domainCreate().
Copy over the ID in qemuDomainCreateWithFlags() to fix this for the qemu
driver, too.
Fixes: de3aadaa ("drivers: add virDomainCreateWithFlags if virDomainCreate exists")
Reported-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Signed-off-by: Sascha Silbe <silbe@linux.vnet.ibm.com>
Tested-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Consider the following XML snippet:
<memory model=''>
<target>
<size unit='KiB'>523264</size>
<node>0</node>
</target>
</memory>
Whats wrong you ask? The @model attribute. This should result in
an error thrown into users faces during virDomainDefine phase.
Except it doesn't. The XML validation catches this error, but if
users chose to ignore that, they will end up with invalid XML.
Well, they won't be able to start the machine - that's when error
is produced currently. But it would be nice if we could catch the
error like this earlier.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The original name 'admin_uri_default' was introduced to our code by commit
dbecb87f. However, at that time we already had a separate config file for
admin library but the commit mentioned above didn't properly adjust the
config's option name. The result is that when we're loading the config, we
check a non-existent config option (there's not much to do with the URIs
anyway, since we only allow local connection). Additionally, virt-admin's man
page documents, that the default URI can be altered by setting
admin_uri_default option. So the fix proposed by this patch leaves the
libvirt-admin.conf as is and adjusts the naming in the code as well as in the
virt-admin's man page.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1356436
Commit id '56057900' altered the discovery of iSCSI node targets by
using the "--op nonpersistent". This caused issues for clean environments
or if by chance a "-m node -o delete" was executed.
Since each iSCSI Storage Pool has the required iSCSI target path, use
that and the virISCSINodeNew API in order to generate the iSCSI node record.
https://bugzilla.redhat.com/show_bug.cgi?id=1356436
According to RFC 3721 (https://www.ietf.org/rfc/rfc3721.txt), there are
two ways to "discover" targets in/for the iSCSI environment. Discovery
is the process which allows the initiator to find the targets to which
it has access and at least one address at which each target may be
accessed.
The method currently implemented in libvirt using the virISCSIScanTargets
API is known as "SendTargets" discovery. This method is more useful when
the target IP Address and TCP port information are available, e.g. in
libvirt terms the "portal". It returns a list of targets for the portal.
From that list, the target can be found. This operation can also fill an
iSCSI node table into which iSCSI logins may occur. Commit id '56057900'
altered that filling by adding the "--op nonpersistent" since it was
not necessarily desired to perform that for non libvirt related targets.
The second method is "Static Configuration". This method not only needs
the IP Address and TCP port (e.g. portal), but also the iSCSI target name.
In libvirt terms this would be the device path field from the iSCSI pool
<source> XML. This patch implements the second methodology using that
required device path as the targetname.
The current LUKS support has a "luks" volume type which has
a "luks" encryption format.
This partially makes sense if you consider the QEMU shorthand
syntax only requires you to specify a format=luks, and it'll
automagically uses "raw" as the next level driver. QEMU will
however let you override the "raw" with any other driver it
supports (vmdk, qcow, rbd, iscsi, etc, etc)
IOW the intention though is that the "luks" encryption format
is applied to all disk formats (whether raw, qcow2, rbd, gluster
or whatever). As such it doesn't make much sense for libvirt
to say the volume type is "luks" - we should be saying that it
is a "raw" file, but with "luks" encryption applied.
IOW, when creating a storage volume we should use this XML
<volume>
<name>demo.raw</name>
<capacity>5368709120</capacity>
<target>
<format type='raw'/>
<encryption format='luks'>
<secret type='passphrase' uuid='0a81f5b2-8403-7b23-c8d6-21ccd2f80d6f'/>
</encryption>
</target>
</volume>
and when configuring a guest disk we should use
<disk type='file' device='disk'>
<driver name='qemu' type='raw'/>
<source file='/home/berrange/VirtualMachines/demo.raw'/>
<target dev='sda' bus='scsi'/>
<encryption format='luks'>
<secret type='passphrase' uuid='0a81f5b2-8403-7b23-c8d6-21ccd2f80d6f'/>
</encryption>
</disk>
This commit thus removes the "luks" storage volume type added
in
commit 318ebb36f1
Author: John Ferlan <jferlan@redhat.com>
Date: Tue Jun 21 12:59:54 2016 -0400
util: Add 'luks' to the FileTypeInfo
The storage file probing code is modified so that it can probe
the actual encryption formats explicitly, rather than merely
probing existance of encryption and letting the storage driver
guess the format.
The rest of the code is then adapted to deal with
VIR_STORAGE_FILE_RAW w/ VIR_STORAGE_ENCRYPTION_FORMAT_LUKS
instead of just VIR_STORAGE_FILE_LUKS.
The commit mentioned above was included in libvirt v2.0.0.
So when querying volume XML this will be a change in behaviour
vs the 2.0.0 release - it'll report 'raw' instead of 'luks'
for the volume format, but still report 'luks' for encryption
format. I think this change is OK because the storage driver
did not include any support for creating volumes, nor starting
guets with luks volumes in v2.0.0 - that only since then.
Clearly if we change this we must do it before v2.1.0 though.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Refactor the virStorageFileMatchesNNN methods so that
they don't take a struct FileFormatInfo parameter, but
instead get the actual raw dat items they needs. This
will facilitate reuse in other contexts.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
To collect all balloon statistics for all guests it was necessary to make
several libvirt requests. Now it's possible to get all balloon statiscs via
single connectGetAllDomainStats call.
Signed-off-by: Derbyshev Dmitry <dderbyshev@virtuozzo.com>
To allow using failover with gluster it's necessary to specify multiple
volume hosts. Add support for starting qemu with such configurations.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
To allow richer definitions of disk sources add infrastructure that will
allow to register functionst generating a JSON object based definition.
This infrastructure will then convert the definition to the proper
command line syntax and use it in cases where it's necessary. This will
allow to keep legacy definitions for back-compat when possible and use
the new definitions for the configurations requiring them.
Add support for converting objects nested in arrays with a numbering
discriminator on the command line. This syntax is used for the
object-based specification of disk source properties.
As gluster natively supports multiple hosts for failover reasons we can
easily add the support to the storage driver code in libvirt.
Extract the code setting an individual host into a separate function and
call them in a loop. The new code also tries to keep the debug log
entries sane.
Extract the code so that it can be called from multiple places. This
also removes a tricky fallthrough in the large switch in
qemuBuildNetworkDriveStr.
Add a modular parser that will allow to parse 'json' backing definitions
that are supported by qemu. The initial implementation adds support for
the 'file' driver.
Due to the approach qemu took to implement the JSON backing strings it's
possible to specify them in two approaches.
The object approach:
json:{ "file" : { "driver":"file",
"filename":"/path/to/file"
}
}
And a partially flattened approach:
json:{"file.driver":"file"
"file.filename":"/path/to/file"
}
Both of the above are supported by qemu and by the code added in this
commit. The current implementation de-flattens the first level ('file.')
if possible and required. Other handling may be added later but
currently only one level was possible anyways.
The cur_balloon also increases/decreases with dimm hotplug/unplug.
To be consistent, adjust the value for coldplug too. This was inconsistently
taken care when cur_ballon != memory to begin with. The patch fixes it
irrespective of that.
Signed-off-by: Shivaprasad G Bhat <sbhat@linux.vnet.ibm.com>
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Since commit c4bdff19, the path to the configuration file has been constructed
in the following manner:
- if no config filename was passed to virConfLoadConfigPath, libvirt.conf was
used as default
- otherwise the filename was concatenated with
"<config_dir>/libvirt/libvirt%s%s.conf" which in admin case resulted in
"libvirt-libvirt-admin.conf.conf". Obviously, this non-existent config led to
ignoring all user settings in libvirt-admin.conf. This patch requires the
config filename to be always provided as an argument with the concatenation
being simplified.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1357364
Signed-off-by: Erik Skultety <eskultet@redhat.com>
For use with memory hotplug virQEMUBuildCommandLineJSONRecurse attempted
to format JSON arrays as bitmap on the command line. Make the formatter
function configurable so that it can be reused with different syntaxes
of arrays such as numbered arrays for use with disk sources.
This patch extracts the code and adds a parameter for the function that
will allow to plug in different formatters.
Until now the JSON->commandline convertor was used only for objects
created by qemu. To allow reusing it with disk formatter we'll need to
escape ',' as usual in qemu commandlines.
Refactor the command line generator by adding a wrapper (with
documentation) that will handle the outermost object iteration.
This patch also renames the functions and tweaks the error message for
nested arrays to be more universal.
The new function is then reused to simplify qemucommandutiltest.
As we already test that the extraction of the backing store string works
well additional tests for the backing store string parser can be made
simpler.
Export virStorageSourceNewFromBackingAbsolute and use it to parse the
backing store strings, format them using virDomainDiskSourceFormat and
match them against expected XMLs.
Nothing in the code path after the removed call has needs/uses the alias
anyway (as would be the case for command line building or talking to monitor).
The alias is VIR_FREE'd in virDomainDeviceInfoClear which is called for any
device that needs/uses an alias via virDomainDeviceDefFree or virDomainDefFree
as well as during virDomainDeviceInfoFree for host devices.
For persistent domains, the domain definition (including aliases) gets
freed a few screens later when it's replaced with newDef.
For transient domains, the definition is freed/unref'd along with the
virDomainObj a few moments later.
Introduce initial support for domainBlockStats API call that
allow us to query block device statistics. OpenStack nova
uses this API call to query block statistics, alongside
virDomainMemoryStats and virDomainInterfaceStats. Note that
this patch only introduces it for VBD for starters. QDisk
would come in a separate patch series.
A new statistics data structure is introduced to fit common
statistics among others specific to the underlying block
backends. For the VBD statistics on linux these are exported
via sysfs on the path:
"/sys/bus/xen-backend/devices/vbd-<domid>-<devid>/statistics"
To calculate the block devno libxlDiskPathToID is introduced.
Each backend implements its own function to extract statistics,
allowing support for multiple backends and different platforms.
VBD stats are exposed in reqs and number of sectors from
blkback, and it's up to us to convert it to sector sizes.
The sector size is gathered through xenstore in the device
backend entry "physical-sector-size".
BlockStatsFlags variant is also implemented which has the
added benefit of getting the number of flush requests.
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
