Currently the virQEMUDriverPtr struct contains an wide variety
of data with varying access needs. Move all the static config
data into a dedicated virQEMUDriverConfigPtr object. The only
locking requirement is to hold the driver lock, while obtaining
an instance of virQEMUDriverConfigPtr. Once a reference is held
on the config object, it can be used completely lockless since
it is immutable.
NB, not all APIs correctly hold the driver lock while getting
a reference to the config object in this patch. This is safe
for now since the config is never updated on the fly. Later
patches will address this fully.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Remove the obsolete 'qemud' naming prefix and underscore
based type name. Introduce virQEMUDriverPtr as the replacement,
in common with LXC driver naming style
When XML for a new guest is received, the machine type is
immediately canonicalized into the version specific name.
This involves probing QEMU for supported machine types.
Replace this probing with a lookup of the machine types
in the (hopefully cached) qemuCapsPtr object
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Remove all use of the existing APIs for querying QEMU
capability flags. Instead obtain a qemuCapsPtr object
from the global cache. This avoids the execution of
'qemu -help' (and related commands) when launching new
guests.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
The current qemu capabilities are stored in a virBitmapPtr
object, whose type is exposed to callers. We want to store
more data besides just the flags, so we need to move to a
struct type. This object will also need to be reference
counted, since we'll be maintaining a cache of data per
binary. This change introduces a 'qemuCapsPtr' virObject
class. Most of the change is just renaming types and
variables in all the callers
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
This converts the following public API datatypes to use the
virObject infrastructure:
virConnectPtr
virDomainPtr
virDomainSnapshotPtr
virInterfacePtr
virNetworkPtr
virNodeDevicePtr
virNWFilterPtr
virSecretPtr
virStreamPtr
virStorageVolPtr
virStoragePoolPtr
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>
Rewrote the device assignment parts in tests to use qemuDomainAssignAddresses.
This way the tests will work for new device address types as they show
up in the future (like s390 device types).
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Return statements with parameter enclosed in parentheses were modified
and parentheses were removed. The whole change was scripted, here is how:
List of files was obtained using this command:
git grep -l -e '\<return\s*([^()]*\(([^()]*)[^()]*\)*)\s*;' | \
grep -e '\.[ch]$' -e '\.py$'
Found files were modified with this command:
sed -i -e \
's_^\(.*\<return\)\s*(\(\([^()]*([^()]*)[^()]*\)*\))\s*\(;.*$\)_\1 \2\4_' \
-e 's_^\(.*\<return\)\s*(\([^()]*\))\s*\(;.*$\)_\1 \2\3_'
Then checked for nonsense.
The whole command looks like this:
git grep -l -e '\<return\s*([^()]*\(([^()]*)[^()]*\)*)\s*;' | \
grep -e '\.[ch]$' -e '\.py$' | xargs sed -i -e \
's_^\(.*\<return\)\s*(\(\([^()]*([^()]*)[^()]*\)*\))\s*\(;.*$\)_\1 \2\4_' \
-e 's_^\(.*\<return\)\s*(\([^()]*\))\s*\(;.*$\)_\1 \2\3_'
Currently non-x86 guests must have <acpi/> defined in <features> to
prevent libvirt from running qemu with -no-acpi. Although it works, it
is a hack.
Instead add a capability flag which indicates whether qemu understands
the -no-acpi option. Use it to control whether libvirt emits -no-acpi.
Current versions of qemu always display -no-acpi in their help output,
so this patch has no effect. However the development version of qemu
has been modified such that -no-acpi is only displayed when it is
actually supported.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
In preparation for code re-organization, rename the Macvtap
management APIs to have the following patterns
virNetDevMacVLanXXXXX - macvlan/macvtap interface management
virNetDevVPortProfileXXXX - virtual port profile management
* src/util/macvtap.c, src/util/macvtap.h: Rename APIs
* src/conf/domain_conf.c, src/network/bridge_driver.c,
src/qemu/qemu_command.c, src/qemu/qemu_command.h,
src/qemu/qemu_driver.c, src/qemu/qemu_hotplug.c,
src/qemu/qemu_migration.c, src/qemu/qemu_process.c,
src/qemu/qemu_process.h: Update for renamed APIs
This patch is rather cosmetic as it only moves device alias
assignation from command line construction just before that.
However, it is needed in connotation of previous and next patch.
Add test cases for parsing the qemu-name-space.
This is based on qemuxml2argv{test,data/}, but can not reside in
qemuxml2argv{test,data/} because ...
1. qemuxmlns-qemu-ns-domain.xml is not schema-valid and breaks
domainschematest. The test is still important to detect xmlns:qemu
bindings to a name-space other than
http://libvirt.org/schemas/domain/qemu/1.0
2. they break qemuxml2xml, because the xmlns:qemu binding is moved to
the top-level <domain> element when converting from argv to xml.
Signed-off-by: Philipp Hahn <hahn@univention.de>
