Move the enum into a new src/util/virsecret.h, rename it to be
virSecretLookupType. Add a src/util/virsecret.h in order to perform
a couple of simple operations on the secret XML and virSecretLookupTypeDef
for clearing and copying.
This includes quite a bit of collateral damage, but the goal is to remove
the "virStorage*" and replace with the virSecretLookupType so that it's
easier to to add new lookups that aren't necessarily storage pool related.
Signed-off-by: John Ferlan <jferlan@redhat.com>
When domXML contains only <console type='pty'> and no corresponding
<serial>, the console is "stolen" [1] and used as the first <serial>
device. When this "stolen" console is accessed from the libxl driver
(in libxlConsoleCallback and libxlDomainOpenConsole), check if the
targetType is VIR_DOMAIN_CHR_CONSOLE_TARGET_TYPE_SERIAL, and use the
"stolen" device in def->serials[0] instead. Prior to this change,
creating a domain with input XML containing only a <console> device
and subsequently attempting to access its console with
'virsh console' would fail
error: internal error: character device <null> is not using a PTY
[1] See comments associated with virDomainDefAddConsoleCompat() in
$LIBVIRT-SRC/src/conf/domain_conf.c:
Commit 2a58ed0b added support for creating guests with USB
hostdevs. Commit fc21d10 later added support for hotplut of
USB hostdevs. Advertise support for USB hostdevs in the
domcapabilities.
In addition add the appropriate caps for USB support on
domaincapstest when libvirt is built on a Xen with
LIBXL_HAVE_PVUSB. Otherwise domaincapstest would fail i.e.
testing the wrong domain capabilities.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Support hot attach/detach a USB host device to guest.
Currently libxl only supports xen PV guest, and only
supports specifying USB host device by 'bus number'
and 'device number', for example:
usb.xml:
<hostdev mode='subsystem' type='usb' managed='no'>
<source>
<address bus='1' device='3'/>
</source>
</hostdev>
#xl attach-device dom usb.xml
#xl detach-device dom usb.xml
Signed-off-by: Chunyan Liu <cyliu@suse.com>
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Support creating guest with USB host device in config file.
Currently libxl only supports xen PV guest, and only supports
specifying USB host device by 'bus number' and 'device number',
for example:
<hostdev mode='subsystem' type='usb' managed='no'>
<source>
<address bus='1' device='3'/>
</source>
</hostdev>
Signed-off-by: Chunyan Liu <cyliu@suse.com>
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Populate libxl_domain_build_info struct with bios and firmware
info from virDomainLoaderDef.
Note: Currently libxl only allows specifying the type of BIOS.
For type LIBXL_BIOS_TYPE_OVMF, the firmware path is configured
when building Xen using '--with-system-ovmf='. If not specified,
LIBXL_FIRMWARE_DIR/ovmf.bin is used. In the future, Xen will
support a user-specified firmware path. See
http://lists.xenproject.org/archives/html/xen-devel/2016-03/msg01628.html
Once that work is merged into xen.git, the libvirt libxl driver
will be able to honor a user-specified path. In the meantime use
the implicit path, which is tolerable since it is advertised in
domcapabilities.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Prefer firmwares specified via --with-loader-nvram configure
option. If none are specified, use the Xen-provided default
firmwares found in LIBXL_FIRMWARE_DIR.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
In libxl driver we do virObjectRef in libxlDomainObjBeginJob,
If virCondWaitUntil failed, it goes to error, do virObjectUnref,
There's a chance that someone undefine the vm at the same time,
and refs unref to zero, vm is freed in libxlDomainObjBeginJob.
But the vm outside function is not Null, we do virObjectUnlock(vm).
That's how we overwrite the vm memory after it's freed. I fix it.
Signed-off-by: Wang Yufei <james.wangyufei@huawei.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
The virConnectOpenInternal method opens the libvirt client
config file and uses it to resolve things like URI aliases.
There may be driver specific things that are useful to
store in the config file too, so rather than have them
re-parse the same file, pass the virConfPtr down to the
drivers.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Similarly to the domain definition validator add a device validator. The
change to the prototype of the domain validator is necessary as
virDomainDeviceInfoIterateInternal requires a non-const pointer.
Until now we weren't able to add checks that would reject configuration
once accepted by the parser. This patch adds a new callback and
infrastructure to add such checks. In this patch all the places where
rejecting a now-invalid configuration wouldn't be a good idea are marked
with a new parser flag.
Remove the live attribute and mark the definition as transient
whether the domain is runing or not.
There were only two callers left calling with live=false:
* testDomainStartState, where the domain already is active
because we assigned vm->def->id just a few lines above the call
* virDomainObjGetPersistentDef, which now only calls
virDomainObjSetDefTransient for an active domain
Add .domainInterfaceAddresses so that user can have a way to
get domain interface address by 'virsh domifaddr'. Currently
it only supports '--source lease'.
Signed-off: Chunyan Liu <cyliu@suse.com>
Xen only supports network-based disks with the qemu (aka qdisk) driver.
Set the driverName to 'qemu' in libxlDomainDeviceDefPostParse() if
not already set. When starting a domain with network-based disks,
ensure the driverName is 'qemu'.
Resolves: https://bugzilla.opensuse.org/show_bug.cgi?id=981094
Commit id 'f9edcfa4' added cookie manipulation for libxl; however, some
cookie crumb cleanup was missed. Found by Coverity.
In libxlDomainMigrationBegin, the cookie is allocated and baked; however,
the mig ingredients weren't cleaned up.
In libxlDomainMigrationPrepare, when the 'mig' cookie is added to the
args, set the 'mig = NULL'; otherwise, other failure paths between when
the code ate the cookie data and when it was added to args would fail
to clean up the crumbs.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than returning a "char *" indicating perhaps some sized set of
characters that is NUL terminated, alter the function to return 0 or -1
for success/failure and add two parameters to handle returning the
buffer and it's size.
The function no longer encodes the returned secret, rather it returns
the unencoded secret forcing callers to make the necessary adjustments.
Alter the callers to handle the adjusted model.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Call the internal driver callbacks rather than the public APIs to avoid
calling unnecessarily the error dispatching code and don't overwrite
the error messages provided by the APIs. They are good enough to
describe which secret is missing either by UUID or the usage (basically
name).
When probing the <emulator> with '-help' to determine if
it is the old qemu, errors are reported if the emulator
doesn't exist
libvirt: error : internal error: Child process
(/usr/lib/xen/bin/qemu-dm -help) unexpected exit status 127:
libvirt: error : cannot execute binary /usr/lib/xen/bin/qemu-dm:
No such file or directory
Avoid the probe if the specified emulator doesn't exist,
squelching the error. There is no behavior change since
libxlDomainGetEmulatorType() would return
LIBXL_DEVICE_MODEL_VERSION_QEMU_XEN if the probe failed
via virCommandRun().
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Similar to "support Xen migration stream V2 in save/restore",
add support for indicating the migration stream version in
the migration code. To accomplish this, add a minimal migration
cookie in the libxl driver that is passed between source and
destination hosts. Initially, the cookie is only used in
the Begin and Prepare phases of migration to communicate the
version of the migration stream produced by the source.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Xen 4.6 introduced a new migration stream commonly referred to as
"migration V2". Xen 4.6 and newer always produce this new stream,
whereas Xen 4.5 and older always produce the legacy stream.
Support for migration stream V2 can be detected at build time with
LIBXL_HAVE_SRM_V2 from libxl.h. The legacy and V2 streams are not
compatible, but a V2 host can accept and convert a legacy stream.
Commit e7440656 changed the libxl driver to use the lowest libxl
API version possible (version 0x040200) to ensure the driver
builds against older Xen releases. The old 4.2 restore API does
not support specifying a stream version and assumes a legacy
stream, even if the incoming stream is migration V2. Thinking it
has been given a legacy stream, libxl will fail to convert an
incoming stream that is already V2, which causes the entire
restore operation to fail. Xen's libvirt-related OSSTest has been
failing since commit e7440656 landed in libvirt.git master. One
of the more recent failures can be seen here
http://lists.xenproject.org/archives/html/xen-devel/2016-05/msg00071.html
This patch changes the call to libxl_domain_create_restore() to
include the stream version if LIBXL_HAVE_SRM_V2 is defined. The
version field of the libxlSavefileHeader struct is also updated
to '2' when LIBXL_HAVE_SRM_V2 is defined, ensuring the stream
version in the header matches the actual stream version produced
by Xen. Along with bumping the libxl API requirement to 0x040400,
this patch fixes save/restore on a migration V2 Xen host.
Oddly, migration has never used the libxlSavefileHeader. It
handles passing configuration in the Begin and Prepare phases,
and then calls libxl directly to transfer domain state/memory
in the Perform phase. A subsequent patch will add stream
version handling in the Begin and Prepare phase handshaking,
which will fix the migration related OSSTest failures.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
In LIBXL_API_VERSION 0x040400, the libxl_domain_create_restore API
gained a parameter for specifying restore parameters. Switch to
using version 0x040400, which will be useful in a subsequent commit
to specify the Xen migration stream version when restoring.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
To ensure the libvirt libxl driver will build with future versions
of Xen where the libxl API may change in incompatible ways,
explicitly use LIBXL_API_VERSION 0x040200. The libxl driver
does use new libxl APIs that have been added since Xen 4.2, but
currently it does not make use of any changes made to existing
APIs such as libxl_domain_create_restore or libxl_set_vcpuaffinity.
The version can be bumped if/when the libxl driver consumes the
changed APIs.
Further details can be found in the following discussion thread
https://www.redhat.com/archives/libvir-list/2016-April/msg00178.html
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Add codes to support creating domain with network defition of assigning
SRIOV VF from a pool.
Signed-off-by: Chunyan Liu <cyliu@suse.com>
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
GCC in RHEL-6 complains about listen:
../../src/conf/domain_conf.c:23718: error: declaration of 'listen' shadows a global declaration [-Wshadow]
/usr/include/sys/socket.h:204: error: shadowed declaration is here [-Wshadow]
This renames all the listen to gListen.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
In the latest libxenlight code, libxl_domain_create_restore accepts a
new argument. Update libvirt's libxl driver for that. Use the macro
provided by libxenlight to detect which version should be used.
The new parameter (send_back_fd) is set to -1 because libvirt provides
no such fd.
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Message-id: 1459866012-27081-1-git-send-email-wei.liu2@citrix.com
Commit id 'fb2bd208' essentially copied the qemuGetSecretString
creating an libxlGetSecretString. Rather than have multiple copies
of the same code, create src/secret/secret_util.{c,h} files and
place the common function in there.
Modify the the build in order to build the module as a library
which is then pulled in by both the qemu and libxl drivers for
usage from both qemu_command.c and libxl_conf.c
Chunyan sent a nice cleanup patch for libxlDomainDetachNetDevice
https://www.redhat.com/archives/libvir-list/2016-March/msg00926.html
which I incorrectly modified before pushing as commit b5534e53. My
modification caused network devices of type hostdev to no longer
be removed. This patch changes b5534e53 to resemble Chunyan's
original, correct patch.
Chunyan sent a correct patch to fix a resource leak on error in
libxlDomainAttachNetDevice
https://www.redhat.com/archives/libvir-list/2016-March/msg00924.html
I made what was thought to be an improvement and pushed the patch as
commit e6336442. As it turns out, my change broke adding net devices
that are actually hostdevs to the list of nets in virDomainDef. This
patch changes e6336442 to resemble Chunyan's original, correct
patch.
Remove disabling domain death events from libxlDomainStart error
path. The domain death event is already disabled in libxlDomainCleanup.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
libxlDomainStart allocates and reserves resources that were not
being released in error paths. libxlDomainCleanup already handles
the job of releasing resources, and libxlDomainStart should call
it when encountering a failure.
Change the error handling logic to call libxlDomainCleanup on
failure. This includes acquiring the lease sooner and allowing
it to be released in libxlDomainCleanup on failure, similar to
the way other resources are reclaimed. With the lease now
released in libxlDomainCleanup, the release_dom label can be
renamed to cleanup_dom to better reflect its changed semantics.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Commit e6336442 changed the 'out:' label to 'cleanup' in
libxlDomainAttachNetDevice(), but missed a comment referencing
the 'out:' label. Remove it from the comment since it is no
longer accurate anyhow.
For those VF allocated from a network pool, we need to set its backend
to be VIR_DOMAIN_HOSTDEV_PCI_BACKEND_XEN so that later work can be
correct.
Signed-off-by: Chunyan Liu <cyliu@suse.com>
When hostdev parent is network device, should call
libxlDomainDetachNetDevice to detach the device from a higher level.
Signed-off-by: Chunyan Liu <cyliu@suse.com>
When AttachNetDevice failed, should call networkReleaseActualDevice
to release actual device, and if actual device is hostdev, should
remove the hostdev from vm->def->hostdevs.
Signed-off-by: Chunyan Liu <cyliu@suse.com>
Until now, the libxl driver ignored any <hap> setting in domain XML
and deferred to libxl, which enables hap if not specified. While
this is a good default, it prevents disabling hap if desired.
This change allows disabling hap with <hap state='off'/>. hap is
explicitly enabled with <hap/> or <hap state='on/>. Absense of <hap>
retains current behavior of deferring default state to libxl.