Commit Graph

264 Commits

Author SHA1 Message Date
Daniel P. Berrange
d442ee23bd Introduce a 'stop' method to virDriverState
To allow actions to be performed in libvirtd when the host
shuts down, or user session exits, introduce a 'stop'
method to virDriverState. This will do things like saving
the VM state to a file.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-11-29 16:14:36 +00:00
Daniel P. Berrange
46c329bcc5 Add virDomainSendProcessSignal API
Add an API for sending signals to arbitrary processes in the
guest OS. This is primarily useful for container based virt,
but can be used for machine virt too, if there is a suitable
guest agent,

* include/libvirt/libvirt.h.in: Add virDomainSendProcessSignal
  and virDomainProcessSignal enum
* src/driver.h: Driver entry point
* src/libvirt.c, src/libvirt_public.syms: Impl for new API

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-11-29 15:50:12 +00:00
Michal Privoznik
0fbf3704fd Introduce virDomainFSTrim() public API
This will call FITRIM within guest. The API has 4 arguments,
however, only 2 will be used for now (@dom and @minumum).
The rest two are there if in future qemu guest agent learns them.
2012-11-28 16:15:01 +01:00
Viktor Mihajlovski
7ecc1d814a virNodeGetCPUMap: Define public API.
Adding a new API to obtain information about the
host node's present, online and offline CPUs.

int virNodeGetCPUMap(virConnectPtr conn,
                     unsigned char **cpumap,
                     unsigned int *online,
                     unsigned int flags);

The function will return the number of CPUs present on the host
or -1 on failure;
If cpumap is non-NULL virNodeGetCPUMap will allocate an array
containing a bit map representation of the online CPUs. It's
the callers responsibility to deallocate cpumap using free().
If online is non-NULL, the variable pointed to will contain
the number of online host node CPUs.
The variable flags has been added to support future extensions
and must be set to 0.

Extend the driver structure by nodeGetCPUMap entry in support of the
new API virNodeGetCPUMap.
Added implementation of virNodeGetCPUMap to libvirt.c

Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2012-10-23 18:46:47 -06:00
Laine Stump
574b9bc66b network: define new API virNetworkUpdate
This patch adds a new public API virNetworkUpdate that will permit
updating an existing network configuration without requiring that the
network be destroyed/restarted for the changes to take effect.
2012-09-18 04:21:32 -04:00
Eric Blake
ef1e024df8 blockjob: add virDomainBlockCommit
A block commit moves data in the opposite direction of block pull.
Block pull reduces the chain length by dropping backing files after
data has been pulled into the top overlay, and is always safe; block
commit reduces the chain length by dropping overlays after data has
been committed into the backing file, and any files that depended
on base but not on top are invalidated at any point where they have
unallocated data that is now pointing to changed contents in base.
Both directions are useful, however: a qcow2 layer that is more than
50% allocated will typically be faster with a pull operation, while
a qcow2 layer with less than 50% allocation will be faster as a
commit operation.  Committing across multiple layers can be more
efficient than repeatedly committing one layer at a time, but
requires extra support from the hypervisor.

This API matches Jeff Cody's proposed qemu command 'block-commit':
https://lists.gnu.org/archive/html/qemu-devel/2012-09/msg02226.html

Jeff's command is still in the works for qemu 1.3, and may gain
further enhancements, such as the ability to control on-error
handling (it will be comparable to the error handling Paolo is
adding to 'drive-mirror', so a similar solution will be needed
when I finally propose virDomainBlockCopy with more functionality
than the basics supported by virDomainBlockRebase).  However, even
without qemu support, this API will be useful for _offline_ block
commits, by wrapping qemu-img calls and turning them into a block
job, so this API is worth committing now.

For some examples of how this will be implemented, all starting
with the chain: base <- snap1 <- snap2 <- active

+ These are equivalent:
 virDomainBlockCommit(dom, disk, NULL, NULL, 0, 0)
 virDomainBlockCommit(dom, disk, NULL, "active", 0, 0)
 virDomainBlockCommit(dom, disk, "base", NULL, 0, 0)
 virDomainBlockCommit(dom, disk, "base", "active", 0, 0)
but cannot be implemented for online qemu with round 1 of
Jeff's patches; and for offline images, it would require
three back-to-back qemu-img invocations unless qemu-img
is patched to allow more efficient multi-layer commits;
the end result would be 'base' as the active disk with
contents from all three other files, where 'snap1' and
'snap2' are invalid right away, and 'active' is invalid
once any further changes to 'base' are made.

+ These are equivalent:
 virDomainBlockCommit(dom, disk, "snap2", NULL, 0, 0)
 virDomainBlockCommit(dom, disk, NULL, NULL, 0, _SHALLOW)
they cannot be implemented for online qemu, but for offline,
it is a matter of 'qemu-img commit active', so that 'snap2'
is now the active disk with contents formerly in 'active'.

+ Similarly:
 virDomainBlockCommit(dom, disk, "snap2", NULL, 0, _DELETE)
for an offline domain will merge 'active' into 'snap2', then
delete 'active' to avoid leaving a potentially invalid file
around.

+ This version:
 virDomainBlockCommit(dom, disk, NULL, "snap2", 0, _SHALLOW)
can be implemented online with 'block-commit' passing a base of
snap1 and a top of snap2; and can be implemented offline by
'qemu-img commit snap2' followed by 'qemu-img rebase -u
-b snap1 active'

* include/libvirt/libvirt.h.in (virDomainBlockCommit): New API.
* src/libvirt.c (virDomainBlockCommit): Implement it.
* src/libvirt_public.syms (LIBVIRT_0.10.2): Export it.
* src/driver.h (virDrvDomainBlockCommit): New driver callback.
* docs/apibuild.py (CParser.parseSignature): Add exception.
2012-09-17 21:28:08 -06:00
Osier Yang
12ad7435de node_memory: Define the APIs to get/set memory parameters
* include/libvirt/libvirt.h.in: (Add macros for the param fields,
  declare the APIs).
* src/driver.h: (New methods for the driver struct)
* src/libvirt.c: (Implement the public APIs)
* src/libvirt_public.syms: (Export the public symbols)
2012-09-17 13:49:44 +08:00
Osier Yang
7a236982fe list: Define new API virConnectListAllSecrets
This is to list the secret objects. Supports to filter the secrets
by its storage location, and whether it's private or not.

include/libvirt/libvirt.h.in: Declare enum virConnectListAllSecretFlags
                              and virConnectListAllSecrets.
python/generator.py: Skip auto-generating
src/driver.h: (virDrvConnectListAllSecrets)
src/libvirt.c: Implement the public API
src/libvirt_public.syms: Export the symbol to public
2012-09-17 13:08:39 +08:00
Osier Yang
6498f76e31 list: Define new API virConnectListAllNWFilters
This is to list the network filter objects. No flags are supported

include/libvirt/libvirt.h.in: Declare enum virConnectListAllNWFilterFlags
                              and virConnectListAllNWFilters.
python/generator.py: Skip auto-generating
src/driver.h: (virDrvConnectListAllNWFilters)
src/libvirt.c: Implement the public API
src/libvirt_public.syms: Export the symbol to public
2012-09-17 12:35:15 +08:00
Osier Yang
c6a3be5dff list: Define new API virConnectListAllNodeDevices
This is to list the node device objects, supports to filter the results
by capability types.

include/libvirt/libvirt.h.in: Declare enum virConnectListAllNodeDeviceFlags
                              and virConnectListAllNodeDevices.
python/generator.py: Skip auto-generating
src/driver.h: (virDrvConnectListAllNodeDevices)
src/libvirt.c: Implement the public API
src/libvirt_public.syms: Export the symbol to public
2012-09-17 10:30:04 +08:00
Osier Yang
f4af202f4e list: Define new API virConnectListAllInterfaces
This is to list the interface objects, supported filtering flags
are: active|inactive.

include/libvirt/libvirt.h.in: Declare enum virConnectListAllInterfaceFlags
                              and virConnectListAllInterfaces.
python/generator.py: Skip auto-generating
src/driver.h: (virDrvConnectListAllInterfaces)
src/libvirt.c: Implement the public API
src/libvirt_public.syms: Export the symbol to public
2012-09-12 15:19:46 +08:00
Osier Yang
89a1df9b06 list: Define new API virConnectListAllNetworks
This is to list the network objects, supported filtering flags
are: active|inactive, persistent|transient, autostart|no-autostart.

include/libvirt/libvirt.h.in: Declare enum virConnectListAllNetworkFlags
                              and virConnectListAllNetworks.
python/generator.py: Skip auto-generating
src/driver.h: (virDrvConnectListAllNetworks)
src/libvirt.c: Implement the public API
src/libvirt_public.syms: Export the symbol to public
2012-09-11 16:58:16 +08:00
Osier Yang
a42eac601e list: Define new API virStoragePoolListAllVolumes
Simply returns the storage volume objects. No supported filter
flags.

include/libvirt/libvirt.h.in: Declare the API
python/generator.py: Skip the function for generating. virStoragePool.py
                     will be added in later patch.
src/driver.h: virDrvStoragePoolListVolumesFlags
src/libvirt.c: Implementation for the API.
src/libvirt_public.syms: Export the symbol to public
2012-09-10 10:37:22 +08:00
Osier Yang
075c754af0 list: Define new API virStorageListAllStoragePools
This introduces a new API to list the storage pool objects,
4 groups of flags are provided to filter the returned pools:

  * Active or not

  * Autostarting or not

  * Persistent or not

  * And the pool type.

include/libvirt/libvirt.h.in: New enum virConnectListAllStoragePoolFlags;
                              Declare the API.
python/generator.py: Skip the generating
src/driver.h: (virDrvConnectListAllStoragePools)
src/libvirt.c: Implementation for the API.
src/libvirt_public.syms: Export the symbol.
2012-09-06 21:58:36 +08:00
Eric Blake
352cbae8b3 qemu-agent: available in 0.10.0
The recent virDomainQemuAgentCommand addition is part of 0.10.0;
also, grouping all libvirt-qemu.so callbacks together makes them
easier to identify.

* src/libvirt_qemu.syms: Fix release symbol.
* src/qemu/qemu_driver.c (qemuDriver): Likewise.
* src/remote/remote_driver.c (remote_driver): Likewise.
* src/driver.h (_virDriver): Group qemu-specific callbacks.
2012-08-23 13:05:52 -06:00
MATSUDA Daiki
847fc9945e agent: add virDrvDomainQemuAgentCommand prototype for drivers.
Add virDrvDomainQemuAgentCommand prototype for drivers.
Add virDomainQemuAgentCommand() for virDrvDomainQemuAgentCommand.

Signed-off-by: MATSUDA Daiki <matsudadik@intellilink.co.jp>
2012-08-23 18:13:15 +08:00
Tang Chen
c152bf9425 Introduce virDomainPinEmulator and virDomainGetEmulatorPinInfo functions.
Introduce 2 APIs to set/get physical cpu pinning info of emulator threads.

Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
2012-08-22 16:20:13 +08:00
Marcelo Cerri
2f8a09fbce Update the remote API
This patch updates libvirt's API to allow applications to inspect the
full list of security labels of a domain.

Signed-off-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
2012-08-20 19:14:30 +02:00
Dmitry Guryanov
cafc26ff5f parallels: add driver skeleton
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.

Signed-off-by: Dmitry Guryanov <dguryanov@parallels.com>
2012-08-01 11:44:26 +08:00
Guido Günther
a91067fa0d Add virDomainGetHostname
to query a guests's hostname. Containers like LXC and OpenVZ allow to
set a hostname different from the hosts name and QEMU's guest agent
could provide similar functionality.
2012-07-20 21:54:34 +02:00
Eric Blake
37bb0447bb list: add virDomainListAllSnapshots API
There was an inherent race between virDomainSnapshotNum() and
virDomainSnapshotListNames(), where an additional snapshot could
be created in the meantime, or where a snapshot could be deleted
before converting the name back to a virDomainSnapshotPtr.  It
was also an awkward name: the function operates on domains, not
domain snapshots.  virDomainSnapshotListChildrenNames() suffered
from the same inherent race, although its naming was nicer.

This patch makes things nicer by grabbing a snapshot list
atomically, in the format most useful to the user.

* include/libvirt/libvirt.h.in (virDomainListAllSnapshots)
(virDomainSnapshotListAllChildren): New declarations.
* src/libvirt.c (virDomainSnapshotListNames)
(virDomainSnapshotListChildrenNames): Add cross-references.
(virDomainListAllSnapshots, virDomainSnapshotListAllChildren):
New functions.
* src/libvirt_public.syms (LIBVIRT_0.9.13): Export them.
* src/driver.h (virDrvDomainListAllSnapshots)
(virDrvDomainSnapshotListAllChildren): New callbacks.
* python/generator.py (skip_function): Prepare for later
hand-written versions.
2012-06-19 13:50:03 -06:00
Peter Krempa
cd639ec5ff driver: Clean up driver header to space indentation 2012-06-19 00:16:21 +02:00
Peter Krempa
747f64eeaf lib: Add public api to enable atomic listing of guest
This patch adds a new public api that lists domains. The new approach is
different from those used before. There are key points to this:

1) The list is acquired atomically and contains both active and inactive
domains (guests). This eliminates the need to call two different list
APIs, where the state might change in between the calls.

2) The returned list consists of virDomainPtrs instead of names or ID's
that have to be converted to virDomainPtrs anyways using separate calls
for each one of them. This is more convenient and saves hypervisor calls.

3) The returned list is auto-allocated. This saves a lot of hassle for
the users.

4) Built in support for filtering. The API call supports various
filtering flags that modify the output list according to user needs.

Available filter groups:
    Domain status:
    VIR_CONNECT_LIST_DOMAINS_ACTIVE, VIR_CONNECT_LIST_DOMAINS_INACTIVE

    Domain persistence:
    VIR_CONNECT_LIST_DOMAINS_PERSISTENT,
    VIR_CONNECT_LIST_DOMAINS_TRANSIENT

    Domain state:
    VIR_CONNECT_LIST_DOMAINS_RUNNING, VIR_CONNECT_LIST_DOMAINS_PAUSED,
    VIR_CONNECT_LIST_DOMAINS_SHUTOFF, VIR_CONNECT_LIST_DOMAINS_OTHER

    Existence of managed save image:
    VIR_CONNECT_LIST_DOMAINS_MANAGEDSAVE,
    VIR_CONNECT_LIST_DOMAINS_NO_MANAGEDSAVE

    Auto-start option:
    VIR_CONNECT_LIST_DOMAINS_AUTOSTART,
    VIR_CONNECT_LIST_DOMAINS_NO_AUTOSTART

    Existence of snapshot:
    VIR_CONNECT_LIST_DOMAINS_HAS_SNAPSHOT,
    VIR_CONNECT_LIST_DOMAINS_NO_SNAPSHOT

5) The python binding returns a list of domain objects that is very neat
to work with.

The only problem with this approach is no support from code generators
so both RPC code and python bindings had to be written manually.

*include/libvirt/libvirt.h.in: - add API prototype
                               - clean up whitespace mistakes nearby
*python/generator.py: - inhibit generation of the bindings for the new
                        api
*src/driver.h: - add driver prototype
               - clean up some whitespace mistakes nearby
*src/libvirt.c: - add public implementation
*src/libvirt_public.syms: - export the new symbol
2012-06-18 21:24:13 +02:00
Eric Blake
2e13b9ab3c snapshot: new query APIs
Right now, starting from just a virDomainSnapshotPtr, and wanting to
know if it is the current snapshot for its respective domain, you have
to use virDomainSnapshotGetDomain(), then virDomainSnapshotCurrent(),
then compare the two names returned by virDomainSnapshotGetName().
It is a bit easier if we can directly query this information from the
snapshot itself.

Right now, it is possible to filter a snapshot listing based on
whether snapshots have metadata that would prevent domain deletion,
but the only way to learn if an individual snapshot has metadata is
to see if that snapshot appears in the list returned by a listing.
Additionally, I hope to expand the qemu driver in a future patch to
use qemu-img to reconstruct snapshot XML corresponding to internal
qcow2 snapshot names not otherwise tracked by libvirt (in part, so
that libvirt can guarantee that new snapshots are not created with
a name that would silently corrupt the existing portion of the qcow2
file); if I ever get that in, then it would no longer be an all-or-none
decision on whether snapshots have metadata, and becomes all the more
important to be able to directly determine that information from a
particular snapshot.

Other query functions (such as virDomainIsActive) do not have a flags
argument, but since virDomainHasCurrentSnapshot takes a flags argument,
I figured it was safer to provide a flags argument here as well.

* include/libvirt/libvirt.h.in (virDomainSnapshotIsCurrent)
(virDomainSnapshotHasMetadata): New declarations.
* src/libvirt.c (virDomainSnapshotIsCurrent)
(virDomainSnapshotHasMetadata): New functions.
* src/libvirt_public.syms (LIBVIRT_0.9.13): Export them.
* src/driver.h (virDrvDomainSnapshotIsCurrent)
(virDrvDomainSnapshotHasMetadata): New driver callbacks.
2012-06-11 10:43:03 -06:00
Daniel P. Berrange
b47637261c Override default driver dir when running from GIT
* daemon/libvirtd.c: Set custom driver module dir if the current
  binary name is 'lt-libvirtd' (indicating execution directly
  from GIT checkout)
* src/driver.c, src/driver.h, src/libvirt_driver_modules.syms: Add
  virDriverModuleInitialize to allow driver module location to
  be changed

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-05-24 13:18:01 +01:00
Eric Blake
73b9977140 xml: use long long internally, to centralize overflow checks
On 64-bit platforms, unsigned long and unsigned long long are
identical, so we don't have to worry about overflow checks.
On 32-bit platforms, anywhere we narrow unsigned long long back
to unsigned long, we have to worry about overflow; it's easier
to do this in one place by having most of the code use the same
or wider types, and only doing the narrowing at the last minute.
Therefore, the memory set commands remain unsigned long, and
the memory get command now centralizes the overflow check into
libvirt.c, so that drivers don't have to repeat the work.

This also fixes a bug where xen returned the wrong value on
failure (most APIs return -1 on failure, but getMaxMemory
must return 0 on failure).

* src/driver.h (virDrvDomainGetMaxMemory): Use long long.
* src/libvirt.c (virDomainGetMaxMemory): Raise overflow.
* src/test/test_driver.c (testGetMaxMemory): Fix driver.
* src/rpc/gendispatch.pl (name_to_ProcName): Likewise.
* src/xen/xen_hypervisor.c (xenHypervisorGetMaxMemory): Likewise.
* src/xen/xen_driver.c (xenUnifiedDomainGetMaxMemory): Likewise.
* src/xen/xend_internal.c (xenDaemonDomainGetMaxMemory):
Likewise.
* src/xen/xend_internal.h (xenDaemonDomainGetMaxMemory):
Likewise.
* src/xen/xm_internal.c (xenXMDomainGetMaxMemory): Likewise.
* src/xen/xm_internal.h (xenXMDomainGetMaxMemory): Likewise.
* src/xen/xs_internal.c (xenStoreDomainGetMaxMemory): Likewise.
* src/xen/xs_internal.h (xenStoreDomainGetMaxMemory): Likewise.
* src/xenapi/xenapi_driver.c (xenapiDomainGetMaxMemory):
Likewise.
* src/esx/esx_driver.c (esxDomainGetMaxMemory): Likewise.
* src/libxl/libxl_driver.c (libxlDomainGetMaxMemory): Likewise.
* src/qemu/qemu_driver.c (qemudDomainGetMaxMemory): Likewise.
* src/lxc/lxc_driver.c (lxcDomainGetMaxMemory): Likewise.
* src/uml/uml_driver.c (umlDomainGetMaxMemory): Likewise.
2012-03-07 18:24:43 -07:00
Eric Blake
3e2c3d8f6d build: use correct type for pid and similar types
No thanks to 64-bit windows, with 64-bit pid_t, we have to avoid
constructs like 'int pid'.  Our API in libvirt-qemu cannot be
changed without breaking ABI; but then again, libvirt-qemu can
only be used on systems that support UNIX sockets, which rules
out Windows (even if qemu could be compiled there) - so for all
points on the call chain that interact with this API decision,
we require a different variable name to make it clear that we
audited the use for safety.

Adding a syntax-check rule only solves half the battle; anywhere
that uses printf on a pid_t still needs to be converted, but that
will be a separate patch.

* cfg.mk (sc_correct_id_types): New syntax check.
* src/libvirt-qemu.c (virDomainQemuAttach): Document why we didn't
use pid_t for pid, and validate for overflow.
* include/libvirt/libvirt-qemu.h (virDomainQemuAttach): Tweak name
for syntax check.
* src/vmware/vmware_conf.c (vmwareExtractPid): Likewise.
* src/driver.h (virDrvDomainQemuAttach): Likewise.
* tools/virsh.c (cmdQemuAttach): Likewise.
* src/remote/qemu_protocol.x (qemu_domain_attach_args): Likewise.
* src/qemu_protocol-structs (qemu_domain_attach_args): Likewise.
* src/util/cgroup.c (virCgroupPidCode, virCgroupKillInternal):
Likewise.
* src/qemu/qemu_command.c(qemuParseProcFileStrings): Likewise.
(qemuParseCommandLinePid): Use pid_t for pid.
* daemon/libvirtd.c (daemonForkIntoBackground): Likewise.
* src/conf/domain_conf.h (_virDomainObj): Likewise.
* src/probes.d (rpc_socket_new): Likewise.
* src/qemu/qemu_command.h (qemuParseCommandLinePid): Likewise.
* src/qemu/qemu_driver.c (qemudGetProcessInfo, qemuDomainAttach):
Likewise.
* src/qemu/qemu_process.c (qemuProcessAttach): Likewise.
* src/qemu/qemu_process.h (qemuProcessAttach): Likewise.
* src/uml/uml_driver.c (umlGetProcessInfo): Likewise.
* src/util/virnetdev.h (virNetDevSetNamespace): Likewise.
* src/util/virnetdev.c (virNetDevSetNamespace): Likewise.
* tests/testutils.c (virtTestCaptureProgramOutput): Likewise.
* src/conf/storage_conf.h (_virStoragePerms): Use mode_t, uid_t,
and gid_t rather than int.
* src/security/security_dac.c (virSecurityDACSetOwnership): Likewise.
* src/conf/storage_conf.c (virStorageDefParsePerms): Avoid
compiler warning.
2012-03-02 06:57:43 -07:00
Michal Privoznik
e2822f19fd Introduce virDomainPMWakeup API
This API allows a domain which previously called
virDomainPMSuspendForDuration() to be woken up.
2012-02-27 11:43:59 +01:00
Martin Kletzander
9f748277bb Fixed URI parsing
Function xmlParseURI does not remove square brackets around IPv6
address when parsing. One of the solutions is making wrappers around
functions working with xmlURI*. This assures that uri->server will be
always properly assigned and it doesn't have to be changed when used
on some new place in the code.
For this purpose, functions virParseURI and virSaveURI were
added. These function are wrappers around xmlParseURI and xmlSaveUri
respectively.
Also there is one new syntax check function to prohibit these functions
anywhere else.

File changes:
 - src/util/viruri.h        -- declaration
 - src/util/viruri.c        -- definition
 - src/libvirt_private.syms -- symbol export
 - src/Makefile.am          -- added source and header files
 - cfg.mk                   -- added sc_prohibit_xmlURI
 - all others               -- ID name and include fixes
2012-02-24 16:49:21 -07:00
Eric Blake
99fd69c3de block rebase: add new API virDomainBlockRebase
Qemu is adding the ability to do a partial rebase.  That is, given:

base <- intermediate <- current

virDomainBlockPull will produce:

current

but qemu now has the ability to leave base in the chain, to produce:

base <- current

Note that current qemu can only do a forward merge, and only with
the current image as the destination, which is fully described by
this API without flags.  But in the future, it may be possible to
enhance this API for additional scenarios by using flags:

Merging the current image back into a previous image (that is,
undoing a live snapshot), could be done by passing base as the
destination and flags with a bit requesting a backward merge.

Merging any other part of the image chain, whether forwards (the
backing image contents are pulled into the newer file) or backwards
(the deltas recorded in the newer file are merged back into the
backing file), could also be done by passing a new flag that says
that base should be treated as an XML snippet rather than an
absolute path name, where the XML could then supply the additional
instructions of which part of the image chain is being merged into
any other part.

* include/libvirt/libvirt.h.in (virDomainBlockRebase): New
declaration.
* src/libvirt.c (virDomainBlockRebase): Implement it.
* src/libvirt_public.syms (LIBVIRT_0.9.10): Export it.
* src/driver.h (virDrvDomainBlockRebase): New driver callback.
* src/rpc/gendispatch.pl (long_legacy): Add exemption.
* docs/apibuild.py (long_legacy_functions): Likewise.
2012-02-01 15:21:56 -07:00
Peter Krempa
c471e55e10 API: Add api to set and get domain metadata
This patch adds API to modify domain metadata for running and stopped
domains. The api supports changing description, title as well as the
newly added <metadata> element. The API has support for storing data in
the metadata element using xml namespaces.

* include/libvirt/libvirt.h.in
* src/libvirt_public.syms
        - add function headers
        - add enum to select metadata to operate on
        - export functions
* src/libvirt.c
        - add public api implementation
* src/driver.h
        - add driver support
* src/remote/remote_driver.c
* src/remote/remote_protocol.x
        - wire up the remote protocol
* include/libvirt/virterror.h
* src/util/virterror.c
        - add a new error message note that metadata for domain are
        missing
2012-02-01 15:01:38 -07:00
Jiri Denemark
02af3e13b2 virDomainGetDiskErrors public API
We already provide ways to detect when a domain has been paused as a
result of I/O error, but there was no way of getting the exact error or
even the device that experienced it.  This new API may be used for both.
2012-02-01 10:42:16 +01:00
Eric Blake
055bbf45e4 resize: slightly alter signature
Our existing virDomainBlockResize takes an unsigned long long
argument; if that command is later taught a DELTA and SHRINK flag,
we cannot change its type without breaking API (but at least such
a change would be ABI compatible).  Meanwhile, the only time a
negative size makes sense is if both DELTA and SHRINK are used
together, but if we keep the argument unsigned, applications can
pass the positive delta amount by which they would like to shrink
the system, and have the flags imply the negative value.  So,
since this API has not yet been released, and in the interest of
consistency with existing API, we swap virStorageVolResize to
always pass an unsigned value.

* include/libvirt/libvirt.h.in (virStorageVolResize): Use unsigned
argument.
* src/libvirt.c (virStorageVolResize): Likewise.
* src/driver.h (virDrvStorageVolUpload): Adjust clients.
* src/remote/remote_protocol.x (remote_storage_vol_resize_args):
Likewise.
* src/remote_protocol-structs: Regenerate.
Suggested by Daniel P. Berrange.
2012-01-31 11:58:06 -05:00
KAMEZAWA Hiroyuki
e1eea7470b Add new public API virDomainGetCPUStats()
add new API virDomainGetCPUStats() for getting cpu accounting information
per real cpus which is used by a domain.  The API is designed to allow
future extensions for additional statistics.

based on ideas by Lai Jiangshan and Eric Blake.

* src/libvirt_public.syms: add API for LIBVIRT_0.9.10
* src/libvirt.c: define virDomainGetCPUStats()
* include/libvirt/libvirt.h.in: add virDomainGetCPUStats() header
* src/driver.h: add driver API
* python/generator.py: add python API (as not implemented)

Signed-off-by: Eric Blake <eblake@redhat.com>
2012-01-28 07:18:27 -07:00
Michal Privoznik
8f8b080263 Introduce virDomainPMSuspendForDuration API
This API allows a domain to be put into one of S# ACPI states.
Currently, S3 and S4 are supported. These states are shared
with virNodeSuspendForDuration.
However, for now we don't support any duration other than zero.
The same apply for flags.
2012-01-28 10:20:46 +01:00
Zeeshan Ali (Khattak)
6714fd04d2 resize: add virStorageVolResize() API
Add a new function to allow changing of capacity of storage volumes.
Plan out several flags, even if not all of them will be implemented
up front.

Expose the new command via 'virsh vol-resize'.

Signed-off-by: Eric Blake <eblake@redhat.com>
2012-01-27 19:56:18 -07:00
Michal Privoznik
adb99a05b1 storage: Support different wiping algorithms
Currently, we support only filling a volume with zeroes on wiping.
However, it is not enough as data might still be readable by
experienced and equipped attacker. Many technical papers have been
written, therefore we should support other wiping algorithms.
2012-01-26 13:59:30 +01:00
Daniel P. Berrange
0b7ddf9e77 Add new virDomainShutdownFlags API
Add a new API virDomainShutdownFlags and define:

    VIR_DOMAIN_SHUTDOWN_DEFAULT        = 0,
    VIR_DOMAIN_SHUTDOWN_ACPI_POWER_BTN = (1 << 0),
    VIR_DOMAIN_SHUTDOWN_GUEST_AGENT    = (1 << 1),

Also define some flags for the reboot API

    VIR_DOMAIN_REBOOT_DEFAULT        = 0,
    VIR_DOMAIN_REBOOT_ACPI_POWER_BTN = (1 << 0),
    VIR_DOMAIN_REBOOT_GUEST_AGENT    = (1 << 1),

Although these two APIs currently have the same flags, using
separate enums allows them to expand separately in the future.

Add stub impls of the new API for all existing drivers
2012-01-24 12:19:51 +01:00
Eric Blake
90cd148027 build: fix build on mingw with netcf available
The autobuilder pointed out an odd failure on mingw:
../../src/interface/netcf_driver.c:644:5: error: unknown field 'close_used_without_including_unistd_h' specified in initializer
cc1: warnings being treated as errors

This is because the gnulib headers #define close to different strings,
according to which headers are included, in order to work around some
odd mingw problems with close(), and these defines happen to also
affect field members declared with a name of struct foo.close. As long
as all headers are included before both the definition and use of the
struct, the various #define doesn't matter, but the netcf file hit
an instance where things were included in a different order.  Fix this
for all clients that use a struct member named 'close'.

* src/driver.h: Include <unistd.h> before using 'close'.
2012-01-11 07:54:10 -07:00
Hu Tao
85f3493f34 domiftune: Add API virDomain{S,G}etInterfaceParameters
The APIs are used to set/get domain's network interface's parameters.
Currently supported parameters are bandwidth settings.

* include/libvirt/libvirt.h.in: new API and parameters definition
* python/generator.py: skip the Python API generation
* src/driver.h: add new entry to the driver structure
* src/libvirt_public.syms: export symbols
2011-12-29 18:24:43 +08:00
Hu Tao
c57ca57034 add new API virDomain{G, S}etNumaParameters
Set up the types for the numa functions and insert them into the
virDriver structure definition.
2011-12-20 10:21:37 -07:00
Lei Li
1f8a339dee Add new API virDomain{Set, Get}BlockIoTune
This patch add new pulic API virDomainSetBlockIoTune and
virDomainGetBlockIoTune.

Signed-off-by: Lei Li <lilei@linux.vnet.ibm.com>
Signed-off-by: Zhi Yong Wu <wuzhy@linux.vnet.ibm.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
2011-11-29 17:29:33 -07:00
Osier Yang
caef87d557 block_resize: Define the new API
The new API is named as "virDomainBlockResize", intending to add
support for qemu monitor command "block_resize" (both HMP and QMP).

Similar with APIs like "virDomainSetMemoryFlags", the units for
argument "size" is kilobytes.
2011-11-29 21:40:43 +08:00
Srivatsa S. Bhat
979676e3db Add a public API to invoke suspend/resume on the host
Implement the public definitions for the new API
virNodeSuspendForDuration() which will be subsequently used to
do a timed suspend on the host.
2011-11-29 17:29:16 +08:00
Jiri Denemark
afdf014f4f Introduce virConnectIsAlive API
This API can be used to check if the socket associated with
virConnectPtr is still open or it was closed (probably because keepalive
protocol timed out). If there the connection is local (i.e., no socket
is associated with the connection, it is trivially always alive.
2011-11-24 12:00:10 +01:00
Jiri Denemark
8d6e3edd0e Introduce virConnectSetKeepAlive
virConnectSetKeepAlive public API can be used by a client connecting to
remote server to start using keepalive protocol. The API is handled
directly by remote driver and not transmitted over the wire to the
server.
2011-11-24 11:44:08 +01:00
Daniel P. Berrange
9d96f1ce90 Introduce the virDomainOpenGraphics API
The virDomainOpenGraphics API allows a libvirt client to pass in
a file descriptor for an open socket pair, and get it connected
to the graphics display of the guest. This is limited to working
with local libvirt hypervisors connected over a UNIX domain
socket, since it will use UNIX FD passing

* include/libvirt/libvirt.h.in: Define virDomainOpenGraphics
* src/driver.h: Define driver for virDomainOpenGraphics
* src/libvirt_public.syms, src/libvirt.c: Entry point for
  virDomainOpenGraphics
* src/libvirt_internal.h: VIR_DRV_FEATURE_FD_PASSING
2011-10-28 10:23:51 +01:00
Eric Blake
f2013c9dd1 snapshot: new virDomainSnapshotListChildrenNames API
The previous API addition allowed traversal up the hierarchy;
this one makes it easier to traverse down the hierarchy.

In the python bindings, virDomainSnapshotNumChildren can be
generated, but virDomainSnapshotListChildrenNames had to copy
from the hand-written example of virDomainSnapshotListNames.

* include/libvirt/libvirt.h.in (virDomainSnapshotNumChildren)
(virDomainSnapshotListChildrenNames): New prototypes.
(VIR_DOMAIN_SNAPSHOT_LIST_DESCENDANTS): New flag alias.
* src/libvirt.c (virDomainSnapshotNumChildren)
(virDomainSnapshotListChildrenNames): New functions.
* src/libvirt_public.syms: Export them.
* src/driver.h (virDrvDomainSnapshotNumChildren)
(virDrvDomainSnapshotListChildrenNames): New callbacks.
* python/generator.py (skip_impl, nameFixup): Update lists.
* python/libvirt-override-api.xml: Likewise.
* python/libvirt-override.c
(libvirt_virDomainSnapshotListChildrenNames): New wrapper function.
2011-10-10 16:54:16 -06:00
Xu He Jie
541ff63615 api: Add public api for 'reset'
Add new public api for 'reset'.
It can reset domain immediately without any guest shutdown.

Signed-off-by: Xu He Jie <xuhj@linux.vnet.ibm.com>
2011-09-29 06:52:42 -06:00
Eric Blake
a2f706de93 snapshot: new virDomainSnapshotGetParent API
Although a client can already obtain a snapshot's parent by
dumping and parsing the xml, then doing a snapshot lookup by
name, it is more efficient to get the parent in one step, which
in turn will make operations that must traverse a snapshot
hierarchy easier to perform.

* include/libvirt/libvirt.h.in (virDomainSnapshotGetParent):
Declare.
* src/libvirt.c (virDomainSnapshotGetParent): New function.
* src/libvirt_public.syms: Export it.
* src/driver.h (virDrvDomainSnapshotGetParent): New callback.
2011-09-28 09:54:56 -06:00
Peter Krempa
79cf07af7c Avoid using "devname" as an identifier.
/usr/lib/stdlib.h in Mac OS X and probably also in BSD's
exports this symbol :(
2011-09-16 20:49:04 +08:00
Osier Yang
1c622a3d53 latency: Define the internal driver callback 2011-09-06 12:02:51 +08:00
Jim Fehlig
b12354befe Add public API for getting migration speed
Includes impl of python binding since the generator was not
able to cope.

Note: Requires gendispatch.pl patch from Matthias Bolte

https://www.redhat.com/archives/libvir-list/2011-August/msg01367.html
2011-09-01 11:26:21 -06:00
Matthias Bolte
4d6e6f4aa9 hyperv: Add driver skeleton 2011-08-26 17:52:55 +02:00
Wieland Hoffmann
2fdf2173f3 driver.h: Fix two driver documentation mistakes 2011-07-25 13:50:32 +08:00
Adam Litke
152e810388 Add new API virDomainBlockPull* to headers
Set up the types for the block pull functions and insert them into the
virDriver structure definition.  Symbols are exported in this patch to
prevent
documentation compile failures.

* include/libvirt/libvirt.h.in: new API
* src/driver.h: add the new entry to the driver structure
* python/generator.py: fix compiler errors, the actual python bindings
* are
  implemented later
* src/libvirt_public.syms: export symbols
* docs/apibuild.py: Extend 'unsigned long' parameter exception to this
* API
2011-07-22 13:18:06 +08:00
Eric Blake
d2a929d4b3 save: new API to manipulate save file images
Modifying the xml on either save or restore only gets you so
far - you have to remember to 'virsh dumpxml dom' just prior
to the 'virsh save' in order to have an xml file worth modifying
that won't be rejected due to abi breaks.  To make this more
powerful, we need a way to grab the xml embedded within a state
file, and from there, it's not much harder to also support
modifying a state file in-place.

Also, virDomainGetXMLDesc didn't document its flags.

* include/libvirt/libvirt.h.in (virDomainSaveImageGetXMLDesc)
(virDomainSaveImageDefineXML): New prototypes.
* src/libvirt.c (virDomainSaveImageGetXMLDesc)
(virDomainSaveImageDefineXML): New API.
* src/libvirt_public.syms: Export them.
* src/driver.h (virDrvDomainSaveImageGetXMLDesc)
(virDrvDomainSaveImgeDefineXML): New driver callbacks.
2011-07-21 17:11:07 -06:00
Michal Privoznik
080bc4ea02 destroy: Define new public API virDomainDestroyFlags
This introduces new API virDomainDestroyFlags to allow
domain destroying with flags, as the existing API virDomainDestroy
misses flags.

The set of flags is defined in virDomainDestroyFlagsValues enum,
which is currently commented, because it is empty.

Calling this API with no flags set (@flags == 0) is equivalent calling
virDomainDestroy.
2011-07-21 20:38:35 +02:00
Eric Blake
ad0b912384 save: new public API to bypass file system cache on save/restore
In order to choose whether to use O_DIRECT when saving a domain image
to a file, we need a new flag.  But virDomainSave was implemented
before our policy of all new APIs having a flag argument.  Likewise
for virDomainRestore when restoring from a file.

The new flag name is chosen as CACHE_BYPASS so as not to preclude
a future solution that uses posix_fadvise once the Linux kernel has
a smarter implementation of that interface.

* include/libvirt/libvirt.h.in (virDomainCreateFlags)
(virDomainCoreDumpFlags): Add a flag.
(virDomainSaveFlags, virDomainRestoreFlags): New prototypes.
* src/libvirt.c (virDomainSaveFlags, virDomainRestoreFlags): New API.
* src/libvirt_public.syms: Export them.
* src/driver.h (virDrvDomainSaveFlags, virDrvDomainRestoreFlags):
New driver callbacks.
2011-07-21 10:34:51 -06:00
Osier Yang
b26a9fa9c2 undefine: Define the new API
This introduces a new API virDomainUndefineFlags to control the
domain undefine process, as the existing API virDomainUndefine
doesn't support flags.

Currently only flag VIR_DOMAIN_UNDEFINE_MANAGED_SAVE is supported.
If the domain has a managed save image, including
VIR_DOMAIN_UNDEFINE_MANAGED_SAVE in @flags will also remove that
file, and omitting the flag will cause undefine process to fail.

This patch also changes the behavior of virDomainUndefine, if the
domain has a managed save image, the undefine will be refused.
2011-07-20 10:59:54 +08:00
Eric Blake
33ba6e6881 libvirt: do not mix internal flags into public API
There were two API in driver.c that were silently masking flags
bits prior to calling out to the drivers, and several others
that were explicitly masking flags bits.  This is not
forward-compatible - if we ever have that many flags in the
future, then talking to an old server that masks out the
flags would be indistinguishable from talking to a new server
that can honor the flag.  In general, libvirt.c should forward
_all_ flags on to drivers, and only the drivers should reject
unknown flags.

In the case of virDrvSecretGetValue, the solution is to separate
the internal driver callback function to have two parameters
instead of one, with only one parameter affected by the public
API.  In the case of virDomainGetXMLDesc, it turns out that
no one was ever mixing VIR_DOMAIN_XML_INTERNAL_STATUS with
the dumpxml path in the first place; that internal flag was
only used in saving and restoring state files, which happened
to be in functions internal to a single file, so there is no
mixing of the internal flag with a public flags argument.
Additionally, virDomainMemoryStats passed a flags argument
over RPC, but not to the driver.

* src/driver.h (VIR_DOMAIN_XML_FLAGS_MASK)
(VIR_SECRET_GET_VALUE_FLAGS_MASK): Delete.
(virDrvSecretGetValue): Separate out internal flags.
(virDrvDomainMemoryStats): Provide missing flags argument.
* src/driver.c (verify): Drop unused check.
* src/conf/domain_conf.h (virDomainObjParseFile): Delete
declaration.
(virDomainXMLInternalFlags): Move...
* src/conf/domain_conf.c: ...here.  Delete redundant include.
(virDomainObjParseFile): Make static.
* src/libvirt.c (virDomainGetXMLDesc, virSecretGetValue): Update
clients.
(virDomainMemoryPeek, virInterfaceGetXMLDesc)
(virDomainMemoryStats, virDomainBlockPeek, virNetworkGetXMLDesc)
(virStoragePoolGetXMLDesc, virStorageVolGetXMLDesc)
(virNodeNumOfDevices, virNodeListDevices, virNWFilterGetXMLDesc):
Don't mask unknown flags.
* src/interface/netcf_driver.c (interfaceGetXMLDesc): Reject
unknown flags.
* src/secret/secret_driver.c (secretGetValue): Update clients.
* src/remote/remote_driver.c (remoteSecretGetValue)
(remoteDomainMemoryStats): Likewise.
* src/qemu/qemu_process.c (qemuProcessGetVolumeQcowPassphrase):
Likewise.
* src/qemu/qemu_driver.c (qemudDomainMemoryStats): Likewise.
* daemon/remote.c (remoteDispatchDomainMemoryStats): Likewise.
2011-07-18 13:50:51 -06:00
Daniel P. Berrange
639f841346 Define a QEMU specific API to attach to a running QEMU process
Introduce a new API in libvirt-qemu.so

 virDomainPtr virDomainQemuAttach(virConnectPtr domain,
                                  unsigned long long pid,
                                  unsigned int flags);

This allows libvirtd to attach to an existing, externally
launched QEMU process. This is useful for QEMU developers who
prefer to launch QEMU themselves for debugging/devel reasons,
but still want the benefit of libvirt based tools like
virt-top, virt-viewer, etc

* include/libvirt/libvirt-qemu.h: Define virDomainQemuAttach
* src/driver.h, src/libvirt-qemu.c, src/libvirt_qemu.syms:
  Driver glue for virDomainQemuAttach
2011-07-12 15:39:03 +01:00
Eric Blake
1740c38116 drivers: prefer unsigned int for flags
Now that the public APIs always use unsigned flags, the internal
driver callbacks might as well do likewise.

* src/driver.h (vrDrvOpen, virDrvDomainCoreDump)
(virDrvDomainGetXMLDesc, virDrvNetworkGetXMLDesc)
(virDrvNWFilterGetXMLDesc): Update type.
* src/remote/remote_protocol.x (remote_open_args)
(remote_domain_core_dump_args, remote_domain_get_xml_desc_args)
(remote_network_get_xml_desc_args)
(remote_nwfilter_get_xml_desc_args): Likewise.
* src/test/test_driver.c: Update clients.
* src/remote/remote_driver.c: Likewise.
* src/xen/xen_hypervisor.c: Likewise.
* src/xen/xen_hypervisor.h: Likewise.
* src/xen/xen_driver.c: Likewise.
* src/xen/xend_internal.c: Likewise.
* src/xen/xend_internal.h: Likewise.
* src/xen/xm_internal.c: Likewise.
* src/xen/xm_internal.h: Likewise.
* src/xen/xs_internal.c: Likewise.
* src/xen/xs_internal.h: Likewise.
* src/xen/xen_inotify.c: Likewise.
* src/xen/xen_inotify.h: Likewise.
* src/phyp/phyp_driver.c: Likewise.
* src/openvz/openvz_driver.c: Likewise.
* src/vmware/vmware_driver.c: Likewise.
* src/vbox/vbox_driver.c: Likewise.
* src/vbox/vbox_tmpl.c: Likewise.
* src/xenapi/xenapi_driver.c: Likewise.
* src/esx/esx_driver.c: Likewise.
* src/esx/esx_interface_driver.c: Likewise.
* src/esx/esx_network_driver.c: Likewise.
* src/esx/esx_storage_driver.c: Likewise.
* src/esx/esx_device_monitor.c: Likewise.
* src/esx/esx_secret_driver.c: Likewise.
* src/esx/esx_nwfilter_driver.c: Likewise.
* src/interface/netcf_driver.c: Likewise.
* src/nwfilter/nwfilter_driver.c: Likewise.
* src/libxl/libxl_driver.c: Likewise.
* src/qemu/qemu_driver.c: Likewise.
* src/lxc/lxc_driver.c: Likewise.
* src/uml/uml_driver.c: Likewise.
* src/network/bridge_driver.c: Likewise.
* src/secret/secret_driver.c: Likewise.
* src/storage/storage_driver.c: Likewise.
* src/node_device/node_device_hal.c: Likewise.
* src/node_device/node_device_udev.c: Likewise.
* src/remote_protocol-structs: Likewise.
2011-07-07 14:15:37 -06:00
Matthias Bolte
f0739fc579 Add node prefix to virNodeGet(CPU|Memory)Stats structs and defines 2011-06-28 17:18:33 +02:00
Eric Blake
28e45afc3f build: rename Vcpupin to VcpuPin
We already have a public virDomainPinVcpu, which implies that
Pin and Vcpu are treated as separate words.  Unreleased commit
e261987c introduced virDomainGetVcpupinInfo as the first public
API that used Vcpupin, although we had prior internal uses of
that spelling.  For consistency, change the spelling to be two
words everywhere, regardless of whether pin comes first or last.

* daemon/remote.c: Treat vcpu and pin as separate words.
* include/libvirt/libvirt.h.in: Likewise.
* src/conf/domain_conf.c: Likewise.
* src/conf/domain_conf.h: Likewise.
* src/driver.h: Likewise.
* src/libvirt.c: Likewise.
* src/libvirt_private.syms: Likewise.
* src/libvirt_public.syms: Likewise.
* src/libxl/libxl_driver.c: Likewise.
* src/qemu/qemu_driver.c: Likewise.
* src/remote/remote_driver.c: Likewise.
* src/xen/xend_internal.c: Likewise.
* tools/virsh.c: Likewise.
* src/remote/remote_protocol.x: Likewise.
* src/remote_protocol-structs: Likewise.
Suggested by Matthias Bolte.
2011-06-27 09:55:11 -06:00
Taku Izumi
e261987c5a vcpupin: introduce the new libvirt API (virDomainGetVcpupinInfo)
This patch introduces a new libvirt API (virDomainGetVcpupinInfo),
as a counterpart to virDomainPinVcpuFlags.

We can use virDomainGetVcpus API to retrieve CPU affinity information,
but can't use this API against inactive domains (at least in case of KVM),
as it lacks a flags parameter.
The usual thing is to add a new virDomainGetVcpusFlags, but that API name
is already occupied by the counterpart to virDomainGetMaxVcpus, which
has a completely different signature.

The virDomainGetVcpupinInfo is the new API to retrieve CPU affinity
information of active and inactive domains.  While the usual convention
is to list an array before its length, this API violates that rule
in order to be more like virDomainGetVcpus (where maxinfo was doing
double-duty as the length of two different arrays).

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
2011-06-24 17:00:22 -06:00
Eric Blake
1aa859d633 Revert "Add new API virDomainBlockPull* to headers"
This reverts commit 7d56a16d03.

Conflicts:

	python/generator.py
	src/libvirt_public.syms
2011-06-24 08:41:25 -06:00
Jiri Denemark
67cc825dda Introduce virDomainGetControlInfo API
The API can be used to query current state of an interface to VMM used
to control a domain. In QEMU world this translates into monitor
connection.
2011-06-16 18:26:12 +02:00
Eric Blake
1d57562942 sendkey: use consistent API convention
Even though rpc uses 'unsigned int' for the _len parameter that
passes the length of item<length>, the public libvirt APIs all
use 'int' and filter out lengths < 0, except for virDomainSendKey.

* include/libvirt/libvirt.h.in (virDomainSendKey): All other APIs
use int for array length.
* src/libvirt.c (virDomainSendKey): Adjust.
* src/driver.h (virDrvDomainSendKey): Likewise.
* daemon/remote_generator.pl: Likewise.
2011-06-15 11:25:53 -06:00
Adam Litke
7d56a16d03 Add new API virDomainBlockPull* to headers
Set up the types for the block pull functions and insert them into the
virDriver structure definition.  Symbols are exported in this patch to prevent
documentation compile failures.

* include/libvirt/libvirt.h.in: new API
* src/driver.h: add the new entry to the driver structure
* python/generator.py: fix compiler errors, the actual python bindings are
  implemented later
* src/libvirt_public.syms: export symbols

Signed-off-by: Adam Litke <agl@us.ibm.com>
2011-06-14 21:20:11 -06:00
Minoru Usui
eff7613967 virNodeGetMemoryStats: Define internal driver API
Signed-off-by: Minoru Usui <usui@mxm.nes.nec.co.jp>
2011-06-14 16:11:30 -06:00
Minoru Usui
85a44c6e36 virNodeGetCPUStats: Define internal driver API
Signed-off-by: Minoru Usui <usui@mxm.nes.nec.co.jp>
2011-06-14 15:07:21 -06:00
Lai Jiangshan
eea8cc4996 send-key: Defining the internal API
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
2011-06-14 13:01:28 -06:00
Taku Izumi
070829cc16 vcpupin: introduce a new libvirt API (virDomainPinVcpuFlags)
This patch introduces a new libvirt API virDomainPinVcpuFlags,
a direct extension from the existing virDomainPinVcpu
2011-06-13 23:35:54 +08:00
Eric Blake
bc4ee58972 sched: introduce virDomainGetSchedulerParametersFlags
If we can choose live or config when setting, then we need to
be able to choose which one we are querying.

Also, make the documentation clear that set must use a non-empty
subset (some of the hypervisors fail if params is NULL).

* include/libvirt/libvirt.h.in
(virDomainGetSchedulerParametersFlags): New prototype.
* src/libvirt.c (virDomainGetSchedulerParametersFlags): Implement
it.
* src/libvirt_public.syms: Export it.
* python/generator.py (skip_impl): Don't auto-generate.
* src/driver.h (virDrvDomainGetSchedulerParametersFlags): New
callback.
2011-05-29 18:38:10 +08:00
Eric Blake
163e5f04ef maint: prefer newer API names internally
Rather mechanical in nature.

* src/driver.h: Use newer virTypedParameter API names.
* src/libvirt.c: Likewise.
* daemon/remote.c: Likewise.
* src/esx/esx_driver.c: Likewise.
* src/libxl/libxl_driver.c: Likewise.
* src/lxc/lxc_driver.c: Likewise.
* src/qemu/qemu_driver.c: Likewise.
* src/remote/remote_driver.c: Likewise.
* src/test/test_driver.c: Likewise.
* src/xen/xen_driver.c: Likewise.
* src/xen/xen_hypervisor.c: Likewise.
* src/xen/xen_hypervisor.h: Likewise.
* src/xen/xend_internal.c: Likewise.
* tools/virsh.c: Likewise.
2011-05-29 18:26:31 +08:00
Michal Privoznik
b1f102edad interface: define internal driver API for network config transactions 2011-05-27 14:28:33 -04:00
Matthias Bolte
1ff2b6f6ee Fix sign mismatches between public API, driver API and XDR protocol
In most cases this affects flags parameters that are unsigned in the
public and driver API but signed in the XDR protocol. Switch the
XDR protocol to unsigned for those.

A counterexample is virNWFilterGetXMLDesc. Its flags parameter is signed
in the public API and XDR protocol, but unsigned in the driver API.
2011-05-25 19:18:14 +02:00
Daniel P. Berrange
2593f9692d Fix the signature of virDomainMigrateFinish3 for error reporting
The current virDomainMigrateFinish3 method signature attempts to
distinguish two types of errors, by allowing return with ret== 0,
but ddomain == NULL, to indicate a failure to start the guest.
This is flawed, because when ret == 0, there is no way for the
virErrorPtr details to be sent back to the client.

Change the signature of virDomainMigrateFinish3 so it simply
returns a virDomainPtr, in the same way as virDomainMigrateFinish2
The disk locking code will protect against the only possible
failure mode this doesn't account for (loosing conenctivity to
libvirtd after Finish3 starts the CPUs, but before the client
sees the reply for Finish3).

* src/driver.h, src/libvirt.c, src/libvirt_internal.h: Change
  virDomainMigrateFinish3 to return a virDomainPtr instead of int
* src/remote/remote_driver.c, src/remote/remote_protocol.x,
  daemon/remote.c, src/qemu/qemu_driver.c, src/qemu/qemu_migration.c:
  Update for API change
2011-05-25 11:47:48 -04:00
Daniel P. Berrange
f9f2d4e147 Add a second URI parameter to virDomainMigratePerform3 method
The virDomainMigratePerform3 currently has a single URI parameter
whose meaning varies. It is either

 - A QEMU migration URI (normal migration)
 - A libvirtd connection URI (peer2peer migration)

Unfortunately when using peer2peer migration, without also
using tunnelled migration, it is possible that both URIs are
required.

This adds a second URI parameter to the virDomainMigratePerform3
method, to cope with this scenario. Each parameter how has a fixed
meaning.

NB, there is no way to actually take advantage of this yet,
since virDomainMigrate/virDomainMigrateToURI do not have any
way to provide the 2 separate URIs

* daemon/remote.c, src/remote/remote_driver.c,
  src/remote/remote_protocol.x, src/remote_protocol-structs: Add
  the second URI parameter to perform3 message
* src/driver.h, src/libvirt.c, src/libvirt_internal.h: Add
  the second URI parameter to Perform3 method
* src/libvirt_internal.h, src/qemu/qemu_migration.c,
  src/qemu/qemu_migration.h: Update to handle URIs correctly
2011-05-25 11:47:48 -04:00
Daniel P. Berrange
7ad4b6b9cc Extend v3 migration protocol to allow app supplied XML for target
This extends the v3 migration protocol such that the
virDomainMigrateBegin3 and virDomainMigratePerform3
methods accept an application supplied XML config for
the target VM.

If the 'xmlin' parameter is NULL, then Begin3 uses the
current guest XML as normal. A driver implementing the
Begin3 method should either reject all non-NULL 'xmlin'
parameters, or strictly validate that the app supplied
XML does not change guest ABI.

The Perform3 method also needed the xmlin parameter to
cope with the Peer2Peer migration sequence.

NB it is not yet possible to use this capability since
neither of the public virDomainMigrate/virDomainMigrateToURI
methods have a way to pass in XML.

* daemon/remote.c, src/remote/remote_driver.c,
  src/remote/remote_protocol.x, src/remote_protocol-structs:
  Add 'remote_string xmlin' parameter to begin3/perform3
  RPC messages
* src/libvirt.c, src/driver.h, src/libvirt_internal.h: Add
  'const char *xmlin' parameter to Begin3/Perform3 methods
* src/qemu/qemu_driver.c, src/qemu/qemu_migration.c,
  src/qemu/qemu_migration.h: Pass xmlin parameter around
  migration methods
2011-05-25 11:47:47 -04:00
Hu Tao
d4b8a35755 introduce virDomainSetSchedulerParametersFlags
This new function allows aditional flags to be passed into from
the virsh command line.
2011-05-17 09:37:46 -06:00
Daniel P. Berrange
65043d2dff Introduce yet another migration version in API.
Migration just seems to go from bad to worse. We already had to
introduce a second migration protocol when adding the QEMU driver,
since the one from Xen was insufficiently flexible to cope with
passing the data the QEMU driver required.

It turns out that this protocol still has some flaws that we
need to address. The current sequence is

 *  Src: DumpXML
          - Generate XML to pass to dst

 *  Dst: Prepare
          - Get ready to accept incoming VM
          - Generate optional cookie to pass to src

 *  Src: Perform
          - Start migration and wait for send completion
          - Kill off VM if successful, resume if failed

 *  Dst: Finish
          - Wait for recv completion and check status
          - Kill off VM if unsuccessful

The problems with this are:

 - Since the first step is a generic 'DumpXML' call, we can't
   add in other migration specific data. eg, we can't include
   any VM lease data from lock manager plugins
 - Since the first step is a generic 'DumpXML' call, we can't
   emit any 'migration begin' event on the source, or have
   any hook that runs right at the start of the process
 - Since there is no final step on the source, if the Finish
   method fails to receive all migration data & has to kill
   the VM, then there's no way to resume the original VM
   on the source

This patch attempts to introduce a version 3 that uses the
improved 5 step sequence

 *  Src: Begin
          - Generate XML to pass to dst
          - Generate optional cookie to pass to dst

 *  Dst: Prepare
          - Get ready to accept incoming VM
          - Generate optional cookie to pass to src

 *  Src: Perform
          - Start migration and wait for send completion
          - Generate optional cookie to pass to dst

 *  Dst: Finish
          - Wait for recv completion and check status
          - Kill off VM if failed, resume if success
          - Generate optional cookie to pass to src

 *  Src: Confirm
          - Kill off VM if success, resume if failed

The API is designed to allow both input and output cookies
in all methods where applicable. This lets us pass around
arbitrary extra driver specific data between src & dst during
migration. Combined with the extra 'Begin' method this lets
us pass lease information from source to dst at the start of
migration

Moving the killing of the source VM out of Perform and
into Confirm, means we can now recover if the dst host
can't successfully Finish receiving migration data.
2011-05-16 15:09:19 +01:00
Daniel P. Berrange
360df0199e Tweak driver naming for consistency with public API
Fix some driver names:

  s/virDrvCPUCompare/virDrvCompareCPU/
  s/virDrvCPUBaseline/virDrvBaselineCPU/
  s/virDrvQemuDomainMonitorCommand/virDrvDomainQemuMonitorCommand/
  s/virDrvSecretNumOfSecrets/virDrvNumOfSecrets/
  s/virDrvSecretListSecrets/virDrvListSecrets/

And some driver struct field names:

  s/getFreeMemory/nodeGetFreeMemory/
2011-05-16 14:20:35 +01:00
Jiri Denemark
6feb1341e5 Internal driver API for virDomainGetState 2011-05-16 10:04:18 +02:00
Michal Privoznik
3c38664339 screenshot: Defining the internal API
* src/driver.h: Stub code for new API
* src/esx/esx_driver.c, src/libxl/libxl_driver.c,
  src/lxc/lxc_driver.c, src/openvz/openvz_driver.c,
  src/phyp/phyp_driver.c, src/qemu/qemu_driver.c,
  rc/remote/remote_driver.c, rc/test/test_driver.c,
  src/uml/uml_driver.c, src/vbox/vbox_tmpl.c,
  src/vmware/vmware_driver.c, src/xen/xen_driver.c,
  src/xen/xen_driver.h, src/xen/xen_hypervisor.c,
  src/xen/xen_inotify.c, src/xen/xend_internal.c,
  src/xen/xm_internal.c, src/xen/xs_internal.c,
  src/xenapi/xenapi_driver.c: Add dummy entries in driver
  table for new APIs
2011-05-13 12:35:58 +02:00
Eric Blake
88d03d4ff1 nwfilter: drop unused flag argument
The public API and RPC over-the-wire format have no flags argument,
so neither should the internal callback API.  This simplifies the
RPC generator.

* src/driver.h (virDrvNWFilterDefineXML): Drop argument that does
not match public API.
* src/nwfilter/nwfilter_driver.c (nwfilterDefine): Likewise.
* src/libvirt.c (virNWFilterDefineXML): Likewise.
* daemon/remote_generator.pl: Drop special case.
2011-05-11 19:26:59 -06:00
Matthias Bolte
9817604afc Rename internal DumpXML functions to GetXMLDesc
This matches the public API and helps to get rid of some special
case code in the remote generator.

Rename driver API functions and XDR protocol structs.

No functional change included outside of the remote generator.
2011-05-10 20:32:41 +02:00
Lai Jiangshan
b19bd85e15 inject-nmi: Defining the internal API 2011-05-10 11:40:51 -06:00
Eric Blake
99fa30804b maint: fix grammar errors
Jim Meyering recently improved gnulib to catch various grammar
errors during 'make syntax-check'.

* .gnulib: Update to latest, for syntax-check improvements.
* include/libvirt/libvirt.h.in (virConnectAuthCallbackPtr): Use
cannot rather than two words.
* src/driver.c: Likewise.
* src/driver.h (VIR_SECRET_GET_VALUE_INTERNAL_CALL): Likewise.
* src/remote/remote_driver.c (initialize_gnutls): Likewise.
* src/util/pci.c (pciBindDeviceToStub): Likewise.
* src/storage/storage_backend.c (virStorageBackendCreateQemuImg):
Likewise.
(virStorageBackendUpdateVolTargetInfoFD): Avoid doubled word.
* docs/formatdomain.html.in: Likewise.
* src/qemu/qemu_process.c (qemuProcessStart): Likewise.
* cfg.mk (exclude_file_name_regexp--sc_prohibit_can_not)
(exclude_file_name_regexp--sc_prohibit_doubled_word): Exclude
existing translation problems.
2011-04-12 09:06:14 -06:00
Daniel P. Berrange
7300f68dff Add public APIs for storage volume upload/download
New APIs are added allowing streaming of content to/from
storage volumes.

* include/libvirt/libvirt.h.in: Add virStorageVolUpload and
  virStorageVolDownload APIs
* src/driver.h, src/libvirt.c, src/libvirt_public.syms: Stub
  code for new APIs
* src/storage/storage_driver.c, src/esx/esx_storage_driver.c:
  Add dummy entries in driver table for new APIs
2011-03-29 12:17:33 +01:00
Daniel P. Berrange
cb4aba9b6a Add public API for setting migration speed on the fly
It is possible to set a migration speed limit when starting
migration. This new API allows the speed limit to be changed
on the fly to adjust to changing conditions

* src/driver.h, src/libvirt.c, src/libvirt_public.syms,
  include/libvirt/libvirt.h.in: Add virDomainMigrateSetMaxSpeed
* src/esx/esx_driver.c, src/lxc/lxc_driver.c,
  src/opennebula/one_driver.c, src/openvz/openvz_driver.c,
  src/phyp/phyp_driver.c, src/qemu/qemu_driver.c,
  src/remote/remote_driver.c, src/test/test_driver.c,
  src/uml/uml_driver.c, src/vbox/vbox_tmpl.c,
  src/vmware/vmware_driver.c, src/xen/xen_driver.c,
  src/libxl/libxl_driver.c: Stub new API
2011-03-22 15:53:08 +00:00
Jim Fehlig
2b84e445d5 Add libxenlight driver
Add a new xen driver based on libxenlight [1], which is the primary
toolstack starting with Xen 4.1.0.  The driver is stateful and runs
privileged only.

Like the existing xen-unified driver, the libxenlight driver is
accessed with xen:// URI.  Driver selection is based on the status
of xend.  If xend is running, the libxenlight driver will not load
and xen:// connections are handled by xen-unified.  If xend is not
running *and* the libxenlight driver is available, xen://
connections are deferred to the libxenlight driver.

V6:
 - Address several code style issues noted by Daniel Veillard
 - Make drive work with xen:/// URI
 - Hold domain object reference while domain is injected in
   libvirt event loop.  Race found and fixed by Markus Groß.

V5:
 - Ensure events are unregistered when domain private data
   is destroyed.  Discovered and fixed by Markus Groß.

V4:
 - Handle restart of libvirtd, reconnecting to previously
   started domains
 - Rebased to current master
 - Tested against Xen 4.1 RC7-pre (c/s 22961:c5d121fd35c0)

V3:
  - Reserve vnc port within driver when autoport=yes

V2:
  - Update to Xen 4.1 RC6-pre (c/s 22940:5a4710640f81)
  - Rebased to current master
  - Plug memory leaks found by Stefano Stabellini and valgrind
  - Handle SHUTDOWN_crash domain death event

[1] http://lists.xensource.com/archives/html/xen-devel/2009-11/msg00436.html
2011-03-18 08:57:48 -06:00
Gui Jianfeng
d55aa8694e libvirt: implements virDomain{Get,Set}BlkioParameters
Implements virDomainSetBlkioParameters and virDomainGetBlkioParameters and initialization

Signed-off-by: Gui Jianfeng <guijianfeng@cn.fujitsu.com>
2011-03-10 17:53:33 -07:00
Taku Izumi
e8340a8b79 setmem: introduce a new libvirt API (virDomainSetMemoryFlags)
This patch introduces a new libvirt API (virDomainSetMemoryFlags) and
a flag (virDomainMemoryModFlags).

Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
2011-03-10 15:02:58 -07:00
Daniel P. Berrange
35416720c2 Put <stdbool.h> into internal.h so it is available everywhere
Remove the <stdbool.h> header from all source files / headers
and just put it into internal.h

* src/internal.h: Add <stdbool.h>
2011-02-24 12:04:06 +00:00
Eric Blake
dec13a5a15 sysinfo: define internal driver API
* src/driver.h (virDrvGetSysinfo): New typedef.
(_virDriver): New callback member.
* src/esx/esx_driver.c (esxDriver): Add stub for driver.
* src/lxc/lxc_driver.c (lxcDriver): Likewise.
* src/opennebula/one_driver.c (oneDriver): Likewise.
* src/openvz/openvz_driver.c (openvzDriver): Likewise.
* src/phyp/phyp_driver.c (phypDriver): Likewise.
* src/qemu/qemu_driver.c (qemuDriver): Likewise.
* src/remote/remote_driver.c (remote_driver): Likewise.
* src/test/test_driver.c (testDriver): Likewise.
* src/uml/uml_driver.c (umlDriver): Likewise.
* src/vbox/vbox_tmpl.c (Driver): Likewise.
* src/vmware/vmware_driver.c (vmwareDriver): Likewise.
* src/xen/xen_driver.c (xenUnifiedDriver): Likewise.
* src/xenapi/xenapi_driver.c (xenapiDriver): Likewise.
2011-02-08 19:25:30 -07:00
Matthias Bolte
2c0db5b5dc Simplify "NWFilterPool" to "NWFilter"
The public object is called NWFilter but the corresponding private
object is called NWFilterPool. I don't see compelling reasons for this
Pool suffix. One might argue that an NWFilter is a "pool" of rules, etc.

Remove the Pool suffix from NWFilterPool. No functional change included.
2011-01-18 23:14:37 +01:00
Jean-Baptiste Rouault
cddd2a0628 Add VMware Workstation and Player driver 2010-12-17 21:19:39 +01:00
Jiri Denemark
4186f92935 Change return value of VIR_DRV_SUPPORTS_FEATURE to bool
virDrvSupportsFeature API is allowed to return -1 on error while all but
one uses of VIR_DRV_SUPPORTS_FEATURE only check for (non)zero return
value. Let's make this macro return zero on error, which is what
everyone expects anyway.
2010-12-06 10:09:00 +01:00