Commit Graph

29867 Commits

Author SHA1 Message Date
Peter Krempa
5e8218fad7 qemu: hotplug: Use 'tlsAlias' to see whether to detach the disk
Using 'haveTLS' to do this is pointless if the alias is not set.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:13:57 +02:00
Peter Krempa
dbb4ff0919 qemu: hotplug: Don't try to infer secret object alias/presence
Now that we remember the alias we've used to attach the secret objects
we should reuse them rather than trying to infer them from the disk
configuration.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:13:57 +02:00
Peter Krempa
7c6b00b8fe qemu: domain: Regenerate auth/enc secret aliases when restoring status XML
Previously we did not store the aliases but rather re-generated them
when unplug was necessary. This is very cumbersome since the knowledge
when and which alias to use needs to be stored in the hotplug code as
well.

While this patch will not strictly improve this situation since there
still will be two places containing this code it at least will allow to
remove the mess from the disk-unplug code and will prevent introducing
more mess when adding blockdev support.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:13:57 +02:00
Peter Krempa
ecd785dd84 tests: qemustatusxml2xml: Add test data for re-generating LUKS/auth aliases
Add tests for upcoming re-generation of aliases for the secret objects
used by qemu when upgrading libvirt.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:13:57 +02:00
Peter Krempa
f95baa3813 qemu: Store and parse disk authentication and encryption secret alias
Rather than trying to figure out which alias was used, store it in the
status XML.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:13:49 +02:00
Peter Krempa
04c890cc8b qemu: domain: Don't delete aliases of secret objects associated with disks
We need to reference the secret objects by name when hot-unplugging
disks. Don't remove the alias so that it does not need to be
recalculated.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:11:12 +02:00
Peter Krempa
02b031a475 qemu: domain: Add helpers for partially clearing qemuDomainSecretInfoPtr
It's desired to keep the alias around to allow referencing of the secret
object used with qemu. Add set of APIs which will destroy all data
except the alias.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:11:12 +02:00
Peter Krempa
c750e1c491 qemu: domain: Use qemuDomainSecretInfoNewPlain only for unencrypted secrets
Move the logic that determines which secret shall be used into the
caller and make this function work only for plain secrets.

This untangles the control flow by only checking relevant data.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:11:12 +02:00
Peter Krempa
56bb7bb3b6 qemu: domain: Setup disk encryption password secret via new helper
The encryption secret is setup only for LUKS and thus requires the new
approach. Use qemuDomainSecretInfoNew for initializing it.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:11:12 +02:00
Peter Krempa
7f08be4dfa qemu: domain: Add new function to set up encrypted secrets only
Some code paths can't use the unencrypted secret. Add a helper which
checks and sets up an encrypted secret only and reuse it when setting up
the secret to decrypt the TLS private key in qemuDomainSecretInfoTLSNew.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:11:12 +02:00
Peter Krempa
5882a6d72f qemu: domain: Rename and fix docs for qemuDomainSecretInfoNew
Rename it to qemuDomainSecretInfoNewPlain and annotate that it also may
set up a 'plain' secret in some cases. This will eventually be
refactored further.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:11:12 +02:00
Peter Krempa
a7f49b82bf qemu: domain: Rename qemuDomainSecretDiskCapable
The function checks whether the storage source requires authentication
secret setup. Rename it accordingly.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:11:12 +02:00
Peter Krempa
6a2faa1344 qemu: domain: Reuse code when preparing hostdev auth secrets
Use qemuDomainSecretStorageSourcePrepare in
qemuDomainSecretHostdevPrepare as it uses a virStorageSource to prepare
the authentication secret object data.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:11:12 +02:00
Peter Krempa
2d309f961e qemu: domain: Add helper to check if encrypted secrets can be used with a VM
This helper checks that the vm has the master key setup and libvirt
supports the given encryption algorithm.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:11:12 +02:00
Peter Krempa
538703ba6f tests: qemublock: Switch to qcow2+luks in test files
The next patch will forbid the old qcow2 encryption completely. Remove
it from the tests.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:11:12 +02:00
Peter Krempa
3bf1959524 tests: qemuxml2argv: Verify that disk secret alias is correct with user-aliases
Change the disk encryption type to qcow2+luks so that the appropriate
secret objects are generated. This tests that the proper alias is used
for the passphrase secret object.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:11:12 +02:00
Peter Krempa
e1b0c4bf65 tests: qemuxml2argv: Drop disk encryption from 'interface-server' test
The disk encryption part is no way relevant to the rest of the test so
drop it.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-05 08:11:12 +02:00
Ján Tomko
09e44dcaaa qemu: implement vsock coldplug/coldunplug
https://bugzilla.redhat.com/show_bug.cgi?id=1291851

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-06-05 07:51:18 +02:00
Ján Tomko
f3d960391c qemu: implement vsock hotunplug
https://bugzilla.redhat.com/show_bug.cgi?id=1291851

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-06-05 07:51:18 +02:00
Ján Tomko
0b9d4970b4 conf: introduce virDomainVsockDefEquals
Introduce a function for comparing two vsock definitions.

https://bugzilla.redhat.com/show_bug.cgi?id=1291851

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-06-05 07:51:18 +02:00
Ján Tomko
8eaa31c3ad qemu: implement vsock hotplug
Allow hotplugging the vsock device.

https://bugzilla.redhat.com/show_bug.cgi?id=1291851

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-06-05 07:51:13 +02:00
Ján Tomko
7ecafb4a2b qemu: Add prefix for vsock vhostfd
Alter qemuBuildVsockDevStr to allow passing a prefix for
the vhostfd file descriptor name. Domain startup uses
the numeric value of fd without a prefix, but hotplug
will need to use a prefix because passed file descriptor
names cannot start with a number.

https://bugzilla.redhat.com/show_bug.cgi?id=1291851

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-06-05 07:34:11 +02:00
Ján Tomko
5048aa527a qemu: split out qemuBuildVsockDevStr
Split out the device string building to allow reuse for hotplug.

https://bugzilla.redhat.com/show_bug.cgi?id=1291851

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-06-05 07:34:10 +02:00
Jim Fehlig
076a2b4096 tests: xmconfigtest: add tests for cmdline formating
Commit 656151bf fixed formatting of the <cmdline> element. Perhaps it
would have been noticed and fixed earlier if we had a test. With this
change, all possible cases of formatting <cmdline> from xmconfig are
covered

1. no 'extra=' or 'root=' in xm.cfg
2. 'extra=' but no 'root=' in xm.cfg
3. 'root=' but no 'extra=' in xm.cfg
4. both 'root=' and 'extra=' in xm.cfg

Case 1 is covered by all existing paravirt tests since they have no
'extra=' or 'root='. Case 2 is covered by adding 'extra=' to a few
of the existing paravirt tests. Cases 3 and 4 are covered by new
tests that only test conversion of xm.cfg to xml.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2018-06-04 20:59:16 -06:00
Jim Fehlig
67c56f6e65 libxl: fix leaking logfile fds
Per-domain log files were introduced in commit a30b08b717. The FILE
objects associated with these log files are stored in a hash table
using domid as a key. When a domain is shutdown, destroyed, or
otherwise powered-off, the FILE object is removed from the hash table,
where the free function will close the FILE.

Unfortunately the call to remove the FILE from the hash table occurs
after setting domid=-1 in the libxlDomainCleanup() function. The
object is never removed from the hash table, the free function is
never called, and the underlying fd is leaked. Fix by removing the
FILE object from the hash table before setting domid=-1.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-04 16:07:39 -06:00
Jiri Denemark
a1b43af0ba Post-release version bump to 4.5.0
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2018-06-04 23:13:13 +02:00
Daniel Veillard
b51249bffe Release of libvirt-4.4.0
* docs/news.xml: updated for release

Signed-off-by: Daniel Veillard <veillard@redhat.com>
2018-06-04 22:23:52 +02:00
Ján Tomko
8a7003f669 qemu: check for QEMU_CAPS_DEVICE_VHOST_VSOCK
My commit b8b42ca added support for formatting the vsock
command line without actually checking if it's supported.

Add it to the per-device validation function.

https://bugzilla.redhat.com/show_bug.cgi?id=1291851

Reported-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2018-06-04 21:42:40 +02:00
Martin Kletzander
52a4078921 docs: Use proper article in formatdomain.html.in
It's "a hard_limit", not "an hard_limit".  Probably that was just a typo.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2018-06-04 15:33:19 +02:00
Jiri Denemark
e36b1f6583 qemu: Fix reporting completed migration stats on destination
This has been broken since commit v4.0.0-165-g93412bb827 which added
jobInfo->statsType enum to distinguish various statistics types. During
migration the type will always be QEMU_DOMAIN_JOB_STATS_TYPE_MIGRATION,
however the destination code consuming the statistics data from
migration cookie failed to properly set the type. So even though
everything was filled in, the type remained *_NONE and any attempt to
fetch the statistics data of a completed migration on the destination
host failed.

https://bugzilla.redhat.com/show_bug.cgi?id=1584071

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2018-06-01 17:55:44 +02:00
Jiri Denemark
55e0cc2a42 spec: Fix requirement for "tc" on new distros
At least since Fedora 26 (maybe earlier, but we don't support older
Fedora releases), the "tc" tool is provided by a separate iproute-tc
package.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2018-06-01 17:38:37 +02:00
Ján Tomko
19e5a81f21 news: add vsock
Document the addition of vsock.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
2018-06-01 14:31:44 +02:00
Ján Tomko
023ea2a869 conf: rename <vsock><source> to <vsock><cid>
To avoid the <source> vs. <target> confusion,
change <source auto='no' cid='3'/> to:
<cid auto='no' address='3'/>

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Suggested-by: Daniel P. Berrangé <berrange@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2018-06-01 14:31:19 +02:00
Michal Privoznik
455e6d57b2 news: Document two new features introduced in this release
The first feature is SCSI persistent reservation, the other is
support for multihead screenshots.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2018-06-01 13:39:17 +02:00
Peter Krempa
105bcdde76 qemu: hotplug: Fix detach of disk with managed persistent reservations
In commit 8bebb2b735 I've refactored how the detach of disk with a
managed persistent reservations object is handled. After the commit if
any disk with a managed PR object would be removed libvirt would also
attempt to remove the shared 'pr-manager-helper' object potentially used
by other disks.

Thankfully this should not have practical impact as qemu should reject
deletion of the object if it was still used and the rest of the code is
correct.

Fix this by removing the disk from the definition earlier and checking
if the shared/managed pr-manager-helper object is still needed.

This basically splits the detach code for the managed PR object from the
unmanaged ones. The same separation will follow for the attachment code
as well as it greatly simplifies -blockdev support for this.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
2018-05-31 16:41:40 +02:00
Michal Privoznik
5276ec712a testUpdateQEMUCaps: Don't leak host cpuData
When preparing qemuCaps for test cases the following is
happening:

qemuTestParseCapabilitiesArch() is called, which calls
virQEMUCapsLoadCache() which in turn calls
virQEMUCapsInitHostCPUModel() which sets qemuCaps->kvmCPU and
qemuCaps->tcgCPU.

But then the code tries to update the capabilities:

testCompareXMLToArgv() calls testUpdateQEMUCaps() which calls
virQEMUCapsInitHostCPUModel() again overwriting previously
allocated memory. The solution is to free host cpuData in
testUpdateQEMUCaps().

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2018-05-31 15:20:57 +02:00
Xiao Feng Ren
cc9c75f562 conf: fixup USB input bus check
This patch fixes the USB input bus check, the bug was introduced by commit 317badb

Signed-off-by: Xiao Feng Ren <renxiaof@linux.vnet.ibm.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2018-05-31 12:35:40 +02:00
Erik Skultety
e0fae78ad5 audit: Enforce enum switch type cast in virDomainAuditHostdev
There was a missing enum for mdev causing a strange 'unknown device type'
warning when hot-plugging mdev.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1583927

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2018-05-31 12:09:50 +02:00
Michal Privoznik
879cff55ac qemuxml2argvtest: Don't initialize qemuCaps twice
There's no point in calling testInitQEMUCaps() (which sets
info.qemuCaps) only to overwrite (and leak) it on the very next
line.

==12962== 296 (208 direct, 88 indirect) bytes in 1 blocks are definitely lost in loss record 265 of 331
==12962==    at 0x4C2CF26: calloc (vg_replace_malloc.c:711)
==12962==    by 0x5D28D9F: virAllocVar (viralloc.c:560)
==12962==    by 0x5D96AB4: virObjectNew (virobject.c:239)
==12962==    by 0x56DB7C7: virQEMUCapsNew (qemu_capabilities.c:1480)
==12962==    by 0x112A5B: testInitQEMUCaps (qemuxml2argvtest.c:361)
==12962==    by 0x1371C8: mymain (qemuxml2argvtest.c:2871)
==12962==    by 0x13AD0B: virTestMain (testutils.c:1120)
==12962==    by 0x1372FD: main (qemuxml2argvtest.c:2883)

Removing the function call renders @gic argument unused therefore
it's removed from the macro (and all its callers).

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2018-05-31 11:33:45 +02:00
Michal Privoznik
5f18b9ba8d virDomainDefParseXML: Free @tmp when parsing genid
We need to free return value of virXPathString().

==12962== 37 bytes in 1 blocks are definitely lost in loss record 156 of 331
==12962==    at 0x4C2AF0F: malloc (vg_replace_malloc.c:299)
==12962==    by 0x91E8439: strdup (in /lib64/libc-2.25.so)
==12962==    by 0x5DBD551: virStrdup (virstring.c:977)
==12962==    by 0x5DD3E5E: virXPathString (virxml.c:84)
==12962==    by 0x5E178AB: virDomainDefParseXML (domain_conf.c:19110)
==12962==    by 0x5E1E985: virDomainDefParseNode (domain_conf.c:20885)
==12962==    by 0x5E1E7CB: virDomainDefParse (domain_conf.c:20827)
==12962==    by 0x5E1E871: virDomainDefParseFile (domain_conf.c:20853)

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2018-05-31 09:23:42 +02:00
Ján Tomko
f8466296e4 conf: fix vsock memory leaks
Introduced by:
commit d4abb7b45d
    conf: introduce <vsock> element
commit b8b42ca036
    qemu: add support for vhost-vsock-pci

Signed-off-by: Ján Tomko <jtomko@redhat.com>
2018-05-30 16:06:04 +02:00
Ján Tomko
d9fcb4cfa1 qemu: free migEvent in qemuMigrationCapsCheck
We allocate a temporary bitmap but never free it.

Introduced by <commit 1f8a1a9>:
    qemu: Do not use qemuMonitorSetMigrationCapability

Signed-off-by: Ján Tomko <jtomko@redhat.com>
2018-05-30 15:56:39 +02:00
Ján Tomko
f8c4868a52 tests: initialize some variables
Found by cppcheck:
[tests/metadatatest.c:284]: (error) Uninitialized variable: test
[tests/objecteventtest.c:855]: (error) Uninitialized variable: test

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2018-05-30 15:54:58 +02:00
Jiri Denemark
7f8e1cb68f spec: Fix permissions of nwfilter XMLs
The nwfilter XMLs in /etc are defined as %ghost in the spec file, which
means rpm will not install them, but it will record its existence and
permissions in the database. During installation the files are copied in
a %post scriptlet from /usr/share/libvirt/nwfilter, but once libvirtd is
restarted, it will rewrite the files to add generated UUIDs.

While RPM recorded 644 mode for the XMLs, libvirt saves them with 600
and thus any future attempt to verify the libvirt-daemon-config-nwfilter
package would fail. We need to tell RPM the ghost files are supposed to
have 600 permissions.

https://bugzilla.redhat.com/show_bug.cgi?id=1559284

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2018-05-30 11:21:28 +02:00
John Ferlan
57d6df39bd storage: Add capability to use LUKS encryption for disk backend
https://bugzilla.redhat.com/show_bug.cgi?id=1560946

Similar to the the Logical backend, use qemu-img on the created
disk partition device to set up for LUKS encryption. Secret mgmt
for the device can be complicated by a reboot possibly changing
the path to the device if the infrastructure changes.

Signed-off-by: John Ferlan <jferlan@redhat.com>
ACKed-by: Peter Krempa <pkrempa@redhat.com>
2018-05-29 10:48:51 -04:00
Ján Tomko
b8b42ca036 qemu: add support for vhost-vsock-pci
Create a new vsock endpoint by opening /dev/vhost-vsock,
set the requested CID via ioctl (or assign a free one if auto='yes'),
pass the file descriptor to QEMU and build the command line.

https://bugzilla.redhat.com/show_bug.cgi?id=1291851
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2018-05-29 15:42:04 +02:00
Ján Tomko
950c46f1a4 util: create virvsock.c
A file for vsock-related helper functions.
virVsockSetGuestCid to set an already-known CID,
virVsockAcquireGuestCid that will use the first available CID

https://bugzilla.redhat.com/show_bug.cgi?id=1291851

Signed-off-by: Ján Tomko <jtomko@redhat.com>
2018-05-29 15:42:03 +02:00
Ján Tomko
f672fa3b1d Introduce QEMU_CAPS_DEVICE_VHOST_VSOCK
Add a new capability flag for vhost-vsock-device

https://bugzilla.redhat.com/show_bug.cgi?id=1291851

Signed-off-by: Ján Tomko <jtomko@redhat.com>
2018-05-29 15:42:03 +02:00
Ján Tomko
c310a5567b qemu: add private data for vsock
Introduce a structure and a class that will be used to store
the private data.

https://bugzilla.redhat.com/show_bug.cgi?id=1291851

Signed-off-by: Ján Tomko <jtomko@redhat.com>
2018-05-29 15:42:03 +02:00
Ján Tomko
d4abb7b45d conf: introduce <vsock> element
Add a new 'vsock' element for the vsock device.
The 'model' attribute is optional.
A <source cid> subelement should be used to specify the guest cid,
or <source auto='yes'/> should be used.

https://bugzilla.redhat.com/show_bug.cgi?id=1291851

Signed-off-by: Ján Tomko <jtomko@redhat.com>
2018-05-29 15:42:03 +02:00