Commit Graph

55 Commits

Author SHA1 Message Date
Jim Fehlig
5a10fb1d2c libxl: change reservedVNCPorts to reservedGraphicsPorts
A later change will use the PortAllocator for SPICE too.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-05-28 12:40:43 -06:00
Jim Fehlig
198cc1d339 libxl: provide integration with lock manager
Provide integration with libvirt's lock manager in the libxl driver.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-04-29 10:51:36 -06:00
Jim Fehlig
d0baac09e6 libxl: Introduce configuration file for libxl driver
Introduce libxl.conf configuration file, adding the 'autoballoon'
setting as the first knob for controlling the libxl driver.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-04-21 14:23:40 -06:00
Jim Fehlig
2adba7d3ab libxl: use xenlight pkgconfig file if present
xen.git commit babeca32 added a pkgconfig file for libxenlight,
allowing libxl apps to determine the location of Xen binaries
such as firmware blobs, device emulator, etc.

This patch adds support for xenlight.pc in the libxl driver, falling
back to the previous configure logic if not found.  It introduces
LIBXL_FIRMWARE_DIR and LIBXL_EXECBIN_DIR to define the firmware and
libexec_bin locations.  If xenlight.pc does not exist, the defines
are set to the current hardcoded paths.  The capabilities'
<emulator> and <loader> elements are updated to use the paths.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-03-19 16:13:26 -06:00
Ian Campbell
d70a51d5ea libxl: Allow libxl to find pygrub binary.
Specifying an explicit path to pygrub (e.g. BINDIR "/pygrub") only works if
Xen and libvirt happen to be installed to the same prefix. A more flexible
approach is to simply specify "pygrub" which will cause libxl to use the
correct path which it knows (since it is built with the same prefix as pygrub).

This is particular problematic in the Debian packaging, since the Debian Xen
package relocates pygrub into a libexec dir, however I think this change makes
sense upstream.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2014-11-21 12:34:22 -07:00
Jim Fehlig
c5a003508f libxl: Add function to determine device model type
This patch introduces a function to detect whether the specified
emulator is QEMU_XEN or QEMU_XEN_TRADITIONAL.  Detection is based on the
string "Options specific to the Xen version:" in '$qemu -help' output.
AFAIK, the only qemu containing that string in help output is the
old Xen fork (aka qemu-dm).

Note:
QEMU_XEN means a qemu that contains support for Xen.

QEMU_XEN_TRADITIONAL means Xen's old forked qemu 0.10.2

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2014-10-10 15:08:40 -06:00
Dario Faggioli
bfc72e9992 libxl: don't break the build on Xen>=4.5 because of libxl_vcpu_setaffinity()
libxl interface for vcpu pinning is changing in Xen 4.5. Basically,
libxl_set_vcpuaffinity() now wants one more parameter. That is
representative of 'VCPU soft affinity', which libvirt does not use.

To mark such change, the macro LIBXL_HAVE_VCPUINFO_SOFT_AFFINITY is
defined. Use it as a gate and, if present, re-#define the calls from
the old to the new interface, to avoid breaking the build.

Signed-off-by: Dario Faggioli <dario.faggioli@citrix.com>
Cc: Jim Fehlig <jfehlig@suse.com>
Cc: Ian Campbell <Ian.Campbell@citrix.com>
Cc: Ian Jackson <Ian.Jackson@eu.citrix.com>
2014-06-30 14:49:22 -06:00
Jim Fehlig
9b8d6e1eef libxl: add migration support
This patch adds initial migration support to the libxl driver,
using the VIR_DRV_FEATURE_MIGRATION_PARAMS family of migration
functions.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2014-06-04 21:01:07 -06:00
Daniel P. Berrange
3bab69c30f libxl: Move virDomainXMLOptionNew into libxlCreateXMLConf
To allow the test suite to creat the XML option object,
move the virDomainXMLOptionNew call into a libxlCreateXMLConf
method.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2014-06-03 11:45:59 +01:00
Daniel P. Berrange
a6abdbf645 libxl: Don't pass libxlDriverPrivatePtr into libxlBuildDomainConfig
To make it easier to test, change libxlBuildDomainConfig so
that it takes a virPortAllocatorPtr instead of the larger
libxlDriverPrivatePtr object.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2014-06-03 11:45:59 +01:00
Daniel P. Berrange
5da28f2405 libxl: Don't pass virDomainObjPtr to libxlBuildDomainConfig
To make it easier to unit test, change libxlBuildDomainConfig
so that it takes 'virDomainDefPtr' and 'libxl_ctx *' objects
as separate parameters.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2014-06-03 11:45:59 +01:00
Daniel P. Berrange
3cfa19da22 Replace Pci with PCI throughout
Since it is an abbreviation, PCI should always be fully
capitalized or full lower case, never Pci.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2014-04-08 11:15:55 +01:00
Jim Fehlig
d8d713234e libxl: move libxlDoNodeGetInfo to libxl_conf
Move libxlDoNodeGetInfo from libxl_driver to libxl_conf
for use by other libxl modules.  For consistency, rename to
libxlDriverNodeGetInfo.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2014-03-19 14:46:55 -06:00
Chunyan Liu
6225cb3df5 add pci passthrough to libxl driver
Add pci passthrough to libxl driver, support attach-device, detach-device and
start a vm with pci hostdev specified.
2014-03-12 17:03:50 +00:00
Jim Fehlig
c2de456e4e libxl: add dump dir to libxlDriverConfig object
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2014-02-24 10:27:53 -07:00
Jim Fehlig
eaa8d9b2c7 libxl: remove list of timer registrations from libxlDomainObjPrivate
Due to some misunderstanding of requirements libxl places on timer
handling, I introduced the half-brained idea of maintaining a list
of timeouts that the driver could force to expire before freeing a
libxlDomainObjPrivate (and hence libxl_ctx).  But testing all
the latest versions of Xen supported by the libxl driver (4.2.3,
4.3.1, 4.4.0 RC3), I see that libxl will handle this just fine and
there is no need to force expiration behind libxl's back.  Indeed it
may be harmful to do so.

This patch removes the timer list, allowing libxl to handle cleanup
of its timer registrations.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2014-02-06 10:08:11 -07:00
Peter Krempa
aef39eb021 maint: Fix messy include of libvirt_internal.h
The libvirt_internal.h header was included by the internal.h header.
This made it painful to add new stuff to the header file that would
require some more specific types. Remove inclusion by internal.h and add
it to appropriate places manually.
2014-01-07 10:03:14 +01:00
Jim Fehlig
7c98d1c153 libxl: Fix initialization of nictype in libxl_device_nic
As pointed out by the Xen folks [1], HVM nics should always be set
to type LIBXL_NIC_TYPE_VIF_IOEMU unless the user explicity requests
LIBXL_NIC_TYPE_VIF via model='netfront'.  The current logic in
libxlMakeNic() only sets the nictype to LIBXL_NIC_TYPE_VIF_IOEMU if
a model is specified that is not 'netfront', which breaks PXE booting
configurations where no model is specified (i.e. use the hypervisor
default).

  Reported-by: Stefan Bader <stefan.bader@canonical.com>

[1] https://www.redhat.com/archives/libvir-list/2013-December/msg01156.html
2014-01-06 16:15:32 -07:00
Cédric Bosdonnat
146434efad Renamed virDomainEventState to virObjectEventState
Leave virDomainEventRegister and its Deregister brother as these are
legacy functions only for domain lifecycle events.
2013-12-10 11:35:34 +00:00
Jim Fehlig
edd60d9cf6 libxl: Use standard format for source file copyright notice
Change source file copyright notice to prevailing libvirt style.
2013-09-03 23:53:48 -06:00
Jim Fehlig
cf735fe03c libxl: Move driver lock/unlock to libxl_conf
Move the libxl driver lock/unlock functions from libxl_driver.c
to libxl_conf.h so they can be used by other source files.
2013-09-03 16:43:21 -06:00
Jim Fehlig
288fdcd06d libxl: Add comments to libxlDriverPrivate fields
Similar to the QEMU and LXC drivers, annotate the fields of
libxlDriverPrivate struct to indicate the locking rules for
their use.
2013-09-03 16:43:21 -06:00
Jim Fehlig
6cd43d3654 libxl: Use atomic ops for driver->nactive 2013-09-03 16:43:21 -06:00
Jim Fehlig
d9f19c30d0 libxl: Introduce libxlDriverConfig object
The libxlDriverPrivate struct contains an variety of data with
varying access needs. Similar to the QEMU and LXC drivers,
move all the static config data into a dedicated libxlDriverConfig
object. The only locking requirement is to hold the driver lock
while obtaining an instance of libxlDriverConfig. Once a reference
is held on the config object, it can be used completely lockless
since it is immutable.
2013-09-03 16:43:20 -06:00
Jim Fehlig
cb0d49af11 libxl: Add libxl_version_info to libxlDriverPrivate
libxl version info is static data as far as the libxl driver
is concerned, so retrieve this info when the driver is initialized
and stash it in the libxlDriverPrivate object.  Subsequently use
the stashed info instead of repeatedly calling libxl_get_version_info().
2013-09-03 16:43:20 -06:00
Jim Fehlig
12315cd779 libxl: Introduce libxl_domain.[ch]
Create libxl_domain.[ch] and move all functions operating on
libxlDomainObjPrivate to these files.  This will be useful for
future patches that e.g. add job support for libxlDomainObjPrivate.
2013-09-03 16:43:20 -06:00
Jim Fehlig
c9d5432d85 libxl: Move detection of autoballoon to libxl_conf
Detecting whether or not to autoballoon is configuration related,
so move the code to libxl_conf.
2013-09-03 16:43:20 -06:00
Jim Fehlig
dd00c3f6c9 libxl: fix libvirtd segfault
Commit d72ef888 introduced a bug in the libxl driver that will
segfault libvirtd if libxl reports an error message, e.g. when
attempting to initialize the driver on a non-Xen system.  I
assumed it was valid to pass a NULL logger to libxl_ctx_alloc(),
but that is not the case since any errors associated with the ctx
that are emitted by libxl will dereference the logger and crash
libvirtd.

Errors associated with the libxl driver-wide ctx could be useful
for debugging anyway, so create a 'libxl-driver.log' to capture
these errors.
2013-08-09 18:01:30 -06:00
Jim Fehlig
d72ef88876 libxl: Create per-domain log file
Currently, only one log file is created by the libxl driver, with
all output from libxl for all domains going to this one file.

Create a per-domain log file based on domain name, making sifting
through the logs a bit easier.  This required deferring libxl_ctx
allocation until starting the domain, which is fine since the
ctx is not used when the domain is inactive.

    Tested-by: Dario Faggioli <dario.faggioli@citrix.com>
2013-08-09 08:22:16 -06:00
Bamvor Jian Zhang
bcef0f0158 add console support in libxl
this patch introduce the console api in libxl driver for both pv and
hvm guest.  and import and update the libxlMakeChrdevStr function
which was deleted in commit dfa1e1dd.

Signed-off-by: Bamvor Jian Zhang <bjzhang@suse.com>
2013-07-30 15:58:28 -06:00
Stefan Bader
65026d7239 libxl: Correctly initialize vcpu bitmap
The avail_vcpu bitmap has to be allocated before it can be used (using
the maximum allowed value for that). Then for each available VCPU the
bit in the mask has to be set (libxl_bitmap_set takes a bit position
as an argument, not the number of bits to set).

Without this, I would always only get one VCPU for guests created
through libvirt/libxl.

Signed-off-by: Stefan Bader <stefan.bader@canonical.com>
2013-07-24 09:03:04 -06:00
Jim Fehlig
fdc10e8d80 libxl: Implement virConnectGetSysinfo
virConnectGetSysinfo was never implemented in the libxl driver.
This patch provides an implementation based on the qemu driver.
2013-06-21 10:42:24 -06:00
Marek Marczykowski-Górecki
7ed47d16dd libxl: populate xenstore memory entries at startup, handle dom0_mem
libxl uses some xenstore entries for hints in memory management
(especially when starting new domain). This includes dom0 memory limit
and Xen free memory margin, based on current system state. Entries are
created at first function usage, so force such call at daemon startup,
which most likely will be before any domain startup.
Also prevent automatic memory management if dom0_mem= option passed to
xen hypervisor - it is known to be incompatible with autoballoon.

Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
2013-06-19 16:23:40 -06:00
Jim Fehlig
e1f31f5ae1 libxl: set bootloader for PV domains if not specified
The legacy xen toolstack will set pygrub as the bootloader if not
specified.  For compatibility, do the same in the libxl driver
iff not using direct kernel boot.
2013-06-12 08:42:15 -06:00
Eric Blake
1add9c78da maint: don't use config.h in .h files
Enforce the rule that .h files don't need to (redundantly)
include <config.h>.

* cfg.mk (sc_prohibit_config_h_in_headers): New rule.
(_virsh_includes): Delete; instead, inline a smaller number of
exclusions...
(exclude_file_name_regexp--sc_require_config_h)
(exclude_file_name_regexp--sc_require_config_h_first): ...here.
* daemon/libvirtd.h (includes): Fix offenders.
* src/driver.h (includes): Likewise.
* src/gnutls_1_0_compat.h (includes): Likewise.
* src/libxl/libxl_conf.h (includes): Likewise.
* src/libxl/libxl_driver.h (includes): Likewise.
* src/lxc/lxc_conf.h (includes): Likewise.
* src/lxc/lxc_driver.h (includes): Likewise.
* src/lxc/lxc_fuse.h (includes): Likewise.
* src/network/bridge_driver.h (includes): Likewise.
* src/phyp/phyp_driver.h (includes): Likewise.
* src/qemu/qemu_conf.h (includes): Likewise.
* src/util/virnetlink.h (includes): Likewise.

Signed-off-by: Eric Blake <eblake@redhat.com>
2013-06-05 05:53:25 -06:00
Peter Krempa
e84b19316a maint: Rename xmlconf to xmlopt and virDomainXMLConfig to virDomainXMLOption
This patch is the result of running:

for i in $(git ls-files | grep -v html | grep -v \.po$ ); do
  sed -i -e "s/virDomainXMLConf/virDomainXMLOption/g" -e "s/xmlconf/xmlopt/g" $i
done

and a few manual tweaks.
2013-04-04 22:18:56 +02:00
Peter Krempa
27cf98e2d1 virCaps: conf: start splitting out irrelevat data
The virCaps structure gathered a ton of irrelevant data over time that.
The original reason is that it was propagated to the XML parser
functions.

This patch aims to create a new data structure virDomainXMLConf that
will contain immutable data that are used by the XML parser. This will
allow two things we need:

1) Get rid of the stuff from virCaps

2) Allow us to add callbacks to check and add driver specific stuff
after domain XML is parsed.

This first attempt removes pointers to private data allocation functions
to this new structure and update all callers and function that require
them.
2013-03-13 09:27:14 +01:00
Daniel P. Berrange
4f6ed6c33a Rename all domain list APIs to have virDomainObjList prefix
The APIs names for accessing the domain list object are
very inconsistent. Rename them all to have a standard
virDomainObjList prefix.
2013-02-05 15:49:25 +00:00
Jim Fehlig
ce33422d35 libxl: Explicitly remove timeouts
I've noticed that libxl can invoke timeout reregister/modify hooks
after returning from libxl_ctx_free.  Explicitly remove the
timeouts before freeing the libxl ctx to avoid executing hooks on
stale objects.
2013-01-25 11:35:41 -07:00
Jim Fehlig
e0622ca281 libxl: Fix races in libxl event code
The libxl driver is racy in it's interactions with libxl and libvirt's
event loop.  The event loop can invoke callbacks after libxl has
deregistered the event, and possibly access freed data associated with
the event.

This patch fixes the race by converting libxlDomainObjPrivate to a
virObjectLockable, and locking it while executing libxl upcalls and
libvirt event loop callbacks.

Note that using the virDomainObj lock is not satisfactory since it may
be desirable to hold the virDomainObj lock even when libxl events such
as reading and writing to xenstore need processed.
2013-01-25 11:31:19 -07:00
Daniel P. Berrange
0995b00084 Convert libxl driver over to use virPortAllocator APIs
Replace the current libxl driver code for managing port
reservations with the new virPortAllocator APIs.
2013-01-16 11:02:58 +00:00
Daniel P. Berrange
a27e4fbb72 Rename bitmap.{c,h} to virbitmap.{c,h}
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-12-21 11:17:12 +00:00
Jim Fehlig
dfa1e1dd53 Convert libxl driver to Xen 4.2
Based on a patch originally authored by Daniel De Graaf

  http://lists.xen.org/archives/html/xen-devel/2012-05/msg00565.html

This patch converts the Xen libxl driver to support only Xen >= 4.2.
Support for Xen 4.1 libxl is dropped since that version of libxl is
designated 'technology preview' only and is incompatible with Xen 4.2
libxl.  Additionally, the default toolstack in Xen 4.1 is still xend,
for which libvirt has a stable, functional driver.
2012-12-06 16:15:54 -07:00
Daniel P. Berrange
79b8a56995 Replace polling for active VMs with signalling by drivers
Currently to deal with auto-shutdown libvirtd must periodically
poll all stateful drivers. Thus sucks because it requires
acquiring both the driver lock and locks on every single virtual
machine. Instead pass in a "inhibit" callback to virStateInitialize
which drivers can invoke whenever they want to inhibit shutdown
due to existance of active VMs.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-12-04 12:14:04 +00:00
Eric Blake
4ecb723b9e maint: fix up copyright notice inconsistencies
https://www.gnu.org/licenses/gpl-howto.html recommends that
the 'If not, see <url>.' phrase be a separate sentence.

* tests/securityselinuxhelper.c: Remove doubled line.
* tests/securityselinuxtest.c: Likewise.
* globally: s/;  If/.  If/
2012-09-20 16:30:55 -06:00
Osier Yang
f9ce7dad60 Desert the FSF address in copyright
Per the FSF address could be changed from time to time, and GNU
recommends the following now: (http://www.gnu.org/licenses/gpl-howto.html)

  You should have received a copy of the GNU General Public License
  along with Foobar.  If not, see <http://www.gnu.org/licenses/>.

This patch removes the explicit FSF address, and uses above instead
(of course, with inserting 'Lesser' before 'General').

Except a bunch of files for security driver, all others are changed
automatically, the copyright for securify files are not complete,
that's why to do it manually:

  src/security/security_selinux.h
  src/security/security_driver.h
  src/security/security_selinux.c
  src/security/security_apparmor.h
  src/security/security_apparmor.c
  src/security/security_driver.c
2012-07-23 10:50:50 +08:00
Daniel P. Berrange
3445a3ec2f Replace use of libxlError with virReportError
Update the libxl driver to use virReportError instead of
the libxlError custom macro

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-07-20 13:18:49 +01:00
Markus Groß
db0274c9d7 Add domainSave/Restore to libxl driver
v3:
* initialize xml pointer to avoid segfault
* throw error message if domain is paused as
  libxenlight itself will pause it

v2:
* header is now padded and has a version field
* the correct restore function from libxl is used
* only create the restore event once in libxlVmStart
2011-05-30 23:29:05 -06:00
Markus Groß
648b521e0d Populate domid field of devices for libxenlight
This patch fixes the population of the
libxenlight data structures. Now the devices
should be removed correctly from the xenstore
if they are detached.
2011-05-30 18:11:42 -06:00
Markus Groß
f59b71ac57 Refactored libxl datastructure instantiation
Create 3 new function refactored from previous list ones and
exports them internally to the driver

* src/libxl/libxl_conf.c src/libxl/libxl_conf.h: create libxlMakeDisk,
  libxlMakeNic libxlMakeVfb out of the exsting static List functions
  and exports them
2011-05-26 23:09:01 +08:00