Commit Graph

2472 Commits

Author SHA1 Message Date
Rafael Fonseca
38c2b707c1 test: move video default logic to driver
The logic setting a device default should be in the post parse function
of individual driver code.

Signed-off-by: Rafael Fonseca <r4f4rfs@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-03-25 09:31:30 +01:00
Rafael Fonseca
c286f2abe0 vmx: vmware: move video default logic to driver
The logic setting a device default should be in the post parse function
of individual driver code.

Signed-off-by: Rafael Fonseca <r4f4rfs@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-03-25 09:31:28 +01:00
Rafael Fonseca
f9c22d1322 vz: openvz: move video default logic to driver
The logic setting a device default should be in the post parse function
of individual driver code.

Signed-off-by: Rafael Fonseca <r4f4rfs@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-03-25 09:31:26 +01:00
Rafael Fonseca
624f905403 libxl: move video default logic to driver
The logic setting a device default should be in the post parse function
of individual driver code.

Signed-off-by: Rafael Fonseca <r4f4rfs@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-03-25 09:31:24 +01:00
Rafael Fonseca
a11a0e6e84 bhyve: move video default logic to driver
The logic setting a device default should be in the post parse function
of individual driver code.

Signed-off-by: Rafael Fonseca <r4f4rfs@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-03-25 09:31:18 +01:00
Peter Krempa
fac9a8b4c4 virDomainDiskSourceNVMeFormat: Format only valid 'managed' values
VIR_TRISTATE_BOOL_ABSENT which maps to the 'default' string would not be
parsed back, so we shouldn't format it either.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-03-24 14:17:47 +01:00
Peter Krempa
5793b8baa7 conf: rename 'namespace' property of struct _virStorageSourceNVMeDef
While 'namespace' is not a reserved word in C, it is in C++. Our
compilers are happy with it but syntax-hilighting in some editors
hilights is as a keyword. Rename it to prevent confusion.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-03-24 14:17:47 +01:00
Daniel Henrique Barboza
5540acb9a2 conf, qemu: enable NVDIMM support for ppc64
Using the 'uuid' element for ppc64 NVDIMM memory added in the
previous patch, use it in qemuBuildMemoryDeviceStr() to pass
it over to QEMU.

Another ppc64 restriction is the necessity of a mem->labelsize,
given than ppc64 only support label-area backed NVDIMMs.

Finally, we don't want ppc64 NVDIMMs to align up due to the
high risk of going beyond the end of file with a 256MiB
increment that the user didn't predict. Align it down
instead. If target size is less than the minimum of
256MiB + labelsize, error out since QEMU will error out
if we attempt to round it up to the minimum.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-03-24 10:02:48 +01:00
Daniel Henrique Barboza
08ed673901 conf: Introduce optional 'uuid' element for NVDIMM memory
ppc64 NVDIMM support was implemented in QEMU by commit [1].
The support is similar to what x86 already does, aside from
an extra 'uuid' element.

This patch introduces a new optional 'uuid' element for the
NVDIMM memory model. This element behaves like the 'uuid'
element of the domain definition - if absent, we'll create
a new one, otherwise use the one provided by the XML.
The 'uuid' element is exclusive to pseries guests and are
unavailable for other architectures.

Next patch will use this new element to add NVDIMM support
for ppc64.

[1] ee3a71e366

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-03-24 10:02:38 +01:00
Rafael Fonseca
8c53938e18 conf: use virStringParseYesNo
Use existing function built for this exact purpose.

Signed-off-by: Rafael Fonseca <r4f4rfs@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-03-23 14:13:09 +01:00
Michal Privoznik
c9bd08ee35 conf: Don't generate clashing machine names for embed driver
So far, when using the qemu:///embed driver, management
applications can't chose whether they want to register their
domains in machined or not. While having that option is certainly
desired, it will require more work. What we can do meanwhile is
to generate names that include part of hash of the root
directory. This is to ensure that if two applications using
different roots but the same domain name (and ID) start the
domain no clashing name for machined is generated.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2020-03-18 15:52:08 +01:00
Michal Privoznik
1dd3282873 virDomainGenerateMachineName: Use g_autofree for @username
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2020-03-18 15:45:07 +01:00
Peter Krempa
63fd461773 conf: Add support for setting timeout and readahead size for network disks
Some disk backends support configuring the readahead buffer or timeout
for requests. Add the knobs to the XML.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-03-16 15:51:44 +01:00
Peter Krempa
3b076391be conf: Add support for cookies for HTTP based disks
Add possibility to specify one or more cookies for http based disks.
This patch adds the config parser, storage and validation of the
cookies.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-03-16 15:51:44 +01:00
Peter Krempa
25481e25b1 conf: Add support for modifying ssl validation for https/ftps disks
To allow turning off verification of SSL cerificates add a new element
<ssl> to the disk source XML which will allow configuring the validation
process using the 'verify' attribute.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-03-16 15:51:44 +01:00
Michal Privoznik
2695191a44 conf: Don't generate machine names with a dot
According to the linked BZ, machined expects either valid
hostname or valid FQDN (see systemd commit
v239-3092-gd65652f1f2). While in case of multiple dots, a
trailing one doesn't violate FQDN, it does violate the rule in
case of something simple, like "domain.". But it's safe to remove
it in both cases.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1808499
Fixes: 45464db8ba

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-03-13 11:59:55 +01:00
Michal Privoznik
3918dbd84e virDomainDiskTranslateSourcePool: Check for disk type correctly
When rewriting the virDomainDiskTranslateSourcePool() function in
v6.1.0-rc1~184 a typo was introduced. Previously, we allowed
startup policy only for those volumes which translated to
VIR_STORAGE_TYPE_FILE. But starting with the referenced commit,
the value we checked for was changed to VIR_STORAGE_VOL_FILE
which comes from a different enum and has a different value too.
This is wrong, because virStorageSourceGetActualType() returns a
value from the original enum.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1811728

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2020-03-10 07:57:55 +01:00
Ján Tomko
59bc34a1d1 conf: default to virtio bus for input passthrough
Other buses are not supported.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-03-04 12:14:39 +01:00
Ján Tomko
33bc3ffe54 conf: only allow virtio bus for input passthrough
Other buses are not supported.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1724928
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-03-04 12:14:38 +01:00
Ján Tomko
6607933984 conf: add virtiofs-related elements and attributes
Add more elements for tuning the virtiofsd daemon
and the vhost-user-fs device:

  <driver type='virtiofs' queue='1024' xattr='on'>
    <binary path='/usr/libexec/virtiofsd'>
      <cache mode='always'/>
      <lock posix='off' flock='off'/>
    </binary>
  </driver>

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Tested-by: Andrea Bolognani <abologna@redhat.com>
2020-03-04 12:08:50 +01:00
Ján Tomko
ecc6ad6b90 conf: qemu: add virtiofs fsdriver type
Introduce a new 'virtiofs' driver type for filesystem.

<filesystem type='mount' accessmode='passthrough'>
  <driver type='virtiofs'/>
  <source dir='/path'/>
  <target dir='mount_tag'>
  <address type='pci' domain='0x0000' bus='0x00' slot='0x02' function='0x0'/>
</filesystem>

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Tested-by: Andrea Bolognani <abologna@redhat.com>
2020-03-04 12:08:50 +01:00
Ján Tomko
7e0d11be5b virsh: include virutil.h where used
Include virutil.h in all files that use it,
instead of relying on it being pulled in somehow.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2020-02-24 23:15:50 +01:00
Ján Tomko
4ccc69707e conf: move virHostdevIs functions
Currently they live in util/virhostdev.
However the virhostdev module is wrongly placed
in util, which is below conf/ in our hierarchy.

Move the functions that are actually used in conf/
to conf/ and remove the include of virhostdev.h
from domain_conf.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-02-24 16:47:21 +01:00
Michal Privoznik
2ab278ec75 virDomainNetDefClear: Free @persistent name
The persistent alias name @persistent is allocated in
virDomainNetDefParseXML() but never freed.

==119642== 22 bytes in 2 blocks are definitely lost in loss record 178 of 671
==119642==    at 0x483579F: malloc (vg_replace_malloc.c:309)
==119642==    by 0x58F89F1: xmlStrndup (in /usr/lib64/libxml2.so.2.9.9)
==119642==    by 0x4BA3B74: virXMLPropString (virxml.c:520)
==119642==    by 0x4BDB0C5: virDomainNetDefParseXML (domain_conf.c:11876)
==119642==    by 0x4BF9EF4: virDomainDefParseXML (domain_conf.c:21196)
==119642==    by 0x4BFCD5B: virDomainDefParseNode (domain_conf.c:21943)
==119642==    by 0x4BFCC36: virDomainDefParse (domain_conf.c:21901)
==119642==    by 0x4BFCCCB: virDomainDefParseFile (domain_conf.c:21924)
==119642==    by 0x114A9D: testCompareXMLToArgv (qemuxml2argvtest.c:452)
==119642==    by 0x13894F: virTestRun (testutils.c:143)
==119642==    by 0x11F46E: mymain (qemuxml2argvtest.c:1316)
==119642==    by 0x13A60E: virTestMain (testutils.c:839

Fixes: fb0509d06a
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-21 11:13:20 +01:00
Michal Privoznik
d8b4f70e1e virDomainFSDefFree: Unref private data
The privateData object is allocated in virDomainFSDefNew() but
never unref'd.

==119642== 480 bytes in 20 blocks are definitely lost in loss record 656 of 671
==119642==    at 0x4837B86: calloc (vg_replace_malloc.c:762)
==119642==    by 0x57806A0: g_malloc0 (in /usr/lib64/libglib-2.0.so.0.6000.7)
==119642==    by 0x4AE7392: virAllocVar (viralloc.c:331)
==119642==    by 0x4B64395: virObjectNew (virobject.c:241)
==119642==    by 0x48F1464: qemuDomainFSPrivateNew (qemu_domain.c:1427)
==119642==    by 0x4BBF004: virDomainFSDefNew (domain_conf.c:2307)
==119642==    by 0x4BD859A: virDomainFSDefParseXML (domain_conf.c:11217)
==119642==    by 0x4BF9DD1: virDomainDefParseXML (domain_conf.c:21179)
==119642==    by 0x4BFCD5B: virDomainDefParseNode (domain_conf.c:21943)
==119642==    by 0x4BFCC36: virDomainDefParse (domain_conf.c:21901)
==119642==    by 0x4BFCCCB: virDomainDefParseFile (domain_conf.c:21924)
==119642==    by 0x114A9D: testCompareXMLToArgv (qemuxml2argvtest.c:452)

Fixes: 5120577ed7
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-21 11:13:05 +01:00
Laine Stump
ef8de28cb0 conf: extra validation for <port isolated='yes'/>
During the hypervisor-agnostic validation of network devices, verify
that the interface type is either "network" or "bridge", and that if
there is any <virtualport>, that it doesn't have any type associated
with it.

This needs to be done both for the parse-time validation and for
runtime validation (after a port has been acquired from any associated
network), because an interface with type='network' could have an
actual type at runtime of "hostdev" or "direct", neither of which
support isolated='true' (yet). Likewise, if an interface is
type='network', then at runtime a <virtualport> with a type that
doesn't support isolated='yes' (e.g. "openvswitch", "802.1Qbh" -
currently *none* of the available virtualport types support it)

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-20 23:16:44 -05:00
Laine Stump
2b8fd7334d qemu/lxc: plumb isolatedPort from config down through bridge attachment
This patch pushes the isolatedPort setting from the <interface> down
all the way to the callers of virNetDevBridgeAddPort(), and sets
BR_ISOLATED on the port (using virNetDevBridgePortSetIsolated()) after
the port has been successfully added to the bridge.

Signed-off-by: Laine Stump <laine@redhat.com>

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-20 23:13:15 -05:00
Laine Stump
de7c347d9b network: propagate <port isolated='yes'/> between network and domain
Similar to the way that the <vlan>, <bandwidth>, and <virtualport>
elements and the trustGuestRxFilters attribute in a <network> (or in
the appropriate <portgroup> element of a <network> can be applied to a
port when it is allocated for a domain's network interface, this patch
checks for a configured value of <port isolated="yes|no"/> in
either the domain <interface> or in the network, setting isolatedPort
in the <networkport> to the first one it finds (the setting from the
domain's <interface> is preferred). This, in turn, is passed back to
the domain when a port is allocated, so that the domain will use that
setting.

(One difference from <vlan>, <bandwidth>, <virtualport>, and
trustGuestRxFilters, is that all of those can be set in a <portgroup>
so that they can be applied only to a subset of interfaces connected
to the network. This didn't really make sense for the isolated setting
due to the way that it's implemented in Linux - the BR_ISOLATED flag
will prevent traffic from passing between two ports that both have
BR_ISOLATED set, but traffic can still go between those ports and
other ports that *don't* have BR_ISOLATED. (It would be nice if all
traffic from a BR_ISOLATED port could be blocked except traffic going
to/from a designated egress port or ports, but instead the entire
feature is implemented as a single flag. Because of this, it's really
only useful if all the ports on a network are isolated, so setting it
for a subset has no practical utility.)

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-20 23:11:29 -05:00
Laine Stump
31d95b182e conf: parse/format <port isolated='yes|no'/>
This is a very simple thing to parse and format, but needs to be done
in 4 places, so two trivial utility functions have been made that can
be called from all the higher level parser/formatters:

  <domain><interface>
  <domain><interface><actual> (only in domain status)
  <network>
  <networkport>

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-20 23:09:27 -05:00
Peter Krempa
bbf5d05cfd conf: Implement support for <slices> of disk source
Implement parsing and formatting of the 'storage' slice.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-14 16:32:21 +01:00
Andrea Bolognani
3809e88a87 conf: Introduce VIR_DOMAIN_TIMER_NAME_ARMVTIMER
This new timer model will be used to control the behavior of the
virtual timer for KVM ARM/virt guests.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Masayoshi Mizuma <m.mizuma@jp.fujitsu.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-14 12:09:07 +01:00
Peter Krempa
37f01262ee virDomainDiskTranslateSourcePool: Translate 'volume' disks in whole backing chain
Now that we accept full backing chains on input nothing should prevent
users from also using disk type 'VOLUME' for specifying the backing
images.

Do the translation for the whole backing chain.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-10 17:26:27 +01:00
Peter Krempa
63469116cc virDomainDiskTranslateSourcePool: split code to setup one storage source
Extract all the code setting up one storage source from the rest which
sets up the whole disk. This will allow us to prepare the whole backing
chain.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-10 17:26:27 +01:00
Peter Krempa
bc42d88ffd virDomainDiskTranslateISCSIDirect: Take virStorageSourcePtr instead of virDomainDiskDefPtr
Only 'def->src' was ever used in this function. Use the source directly.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-10 17:26:26 +01:00
Peter Krempa
4fca8299c5 virDomainDiskTranslateSourcePoolAuth: Take virStorageSourcePtr instead of virDomainDiskDefPtr
Only 'def->src' was ever used in this function. Use the source directly.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-10 17:26:26 +01:00
Peter Krempa
47cad72553 virDomainDiskAddISCSIPoolSourceHost: Take virStorageSourcePtr instead of virDomainDiskDefPtr
Only 'def->src' was ever used in this function. Use the source directly.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-10 17:26:26 +01:00
Peter Krempa
e20c5b1703 virDomainDiskAddISCSIPoolSourceHost: Remove ternary operator
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-10 17:26:26 +01:00
Peter Krempa
4d5093ef75 virDomainDiskAddISCSIPoolSourceHost: Remove 'cleanup' label
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-10 17:26:26 +01:00
Peter Krempa
5eda34f2e1 virDomainDiskAddISCSIPoolSourceHost: use g_new0 instead of VIR_ALLOC_N
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-10 17:26:26 +01:00
Peter Krempa
c5b1c14379 virDomainDiskAddISCSIPoolSourceHost: Sanitize handling of string list
Use virStringSplitCount instead of virStringSplit so that we can drop
the call to virStringListLength and use VIR_AUTOSTRINGLIST to declare
it and allow removal of the cleanup section.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-02-10 17:26:26 +01:00
Stefan Berger
914cb83218 conf: Add support for tpm-spapr to domain XML
This patch adds support for the tpm-spapr device model for ppc64. The XML for
this type of TPM looks as follows:

 <tpm model='tpm-spapr'>
   <backend type='emulator'/>
 </tpm>

Extend the documentation.

Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2020-02-05 19:57:10 +01:00
Stefan Berger
21b6f41d95 conf: Introduce VIR_DOMAIN_TPM_MODEL_DEFAULT as default model
Introduce VIR_DOMAIN_TPM_MODEL_DEFAULT as a default model which we use
in case the user does not provide a model in the device XML. It has
the TIS's previous value of '0'. In the post parsing function
we change this default value to 'TIS' to have the same model as before.

Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2020-02-05 19:57:10 +01:00
Ján Tomko
4166856c23 conf: use correct free function for virDomainVsockDef
Technically, there is no memleak here, since the only
allocations are filled by virDomainDeviceInfoParseXML,
which cleans up after itself.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-02-05 10:52:23 +01:00
Ján Tomko
3f40a487a9 conf: use correct free function for virDomainDeviceDef
Simple g_autofree is not enough if we put allocated
data into the device structure.

Define the AUTOPTR_CLEANUP function and use it here.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reported-by: Xu Yandong <xuyandong2@huawei.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2020-02-05 09:56:57 +01:00
Ján Tomko
0a125c7144 virBufferTrim: do not accept len
Always trim the full specified suffix.

All of the callers outside of tests were passing either
strlen or the actual length of the string.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2020-02-03 19:44:38 +01:00
Ján Tomko
49882b3337 Add a space before ending a comment
Also add a space after the start in some of the cases.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2020-01-30 12:32:03 +01:00
Laine Stump
fb0509d06a conf: parse/format <teaming> subelement of <interface>
The subelement <teaming> of <interface> devices is used to configure a
simple teaming association between two interfaces in a domain. Example:

  <interface type='bridge'>
    <source bridge='br0'/>
    <model type='virtio'/>
    <mac address='00:11:22:33:44:55'/>
    <alias name='ua-backup0'/>
    <teaming type='persistent'/>
  </interface>
  <interface type='hostdev'>
    <source>
      <address type='pci' bus='0x02' slot='0x10' function='0x4'/>
    </source>
    <mac address='00:11:22:33:44:55'/>
    <teaming type='transient' persistent='ua-backup0'/>
  </interface>

The interface with <teaming type='persistent'/> is assumed to always
be present, while the interface with type='transient' may be be
unplugged and later re-plugged; the persistent='blah' attribute (and
in the one currently available implementation, also the matching MAC
addresses) is what associates the two devices with each other. It is
up to the hypervisor and the guest network drivers to determine what
to do with this information.

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-29 15:33:29 -05:00
Nikolay Shirokovskiy
dd94f36ffb qemu: check iotune params same for all disk in group
Currently it is possible to start a domain which have disks
in same iotune group and at the same time having different iotune
params. Both params set are passed to qemu in command line and the one
that is passed later down command line is get actually set.
Let's prohibit such configurations.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-01-29 11:46:51 +01:00
Nikolay Shirokovskiy
eb4455daab conf: expand iotune params if only group name is given
Currently, if only iotune group name is given for some disk and
no any params then later start of domain will fail. I guess it
will be convenient to allow such configuration if there is
another disk in the same iotune group with iotune params set. The
meaning is that the first disk have same iotunes and the latter.
Thus one can easily add a disk to iotune group - just add group
name parameter and no need to copy all the params.

Also let's expand iotunes params in the described case so we don't
need to refer to another disk to know iotunes and this will make
logic in many places simple.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-01-29 11:46:42 +01:00
Nikolay Shirokovskiy
67ebd6ac26 qemu: Move qemuDiskConfigBlkdeviotuneHas* to conf
And introduce virDomainBlockIoTuneInfoHasAny.

Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-01-29 11:46:17 +01:00
Ján Tomko
930f6e05b9 conf: unmark xmlopt as unused in virDomainDeviceInfoParseXML
It is used by the user-alias handling code.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2020-01-28 13:32:28 +01:00
Ján Tomko
31375a0842 conf: remove outdated comments
Some *ParseXML functions have comments stating what kind of device
they parse with an outdated list of parameters, with the exception
of virDomainFSDefParseXML which claims to parse a disk.

Remove them, assuming the function names are descriptive enough.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2020-01-28 13:32:28 +01:00
Ján Tomko
3efdbae5bf conf: use virXMLFormatElement in virDomainFSDefFormat
Use the virXMLFormatElement helper to format the driver element
to simplify adding further sub-elements.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2020-01-28 10:31:41 +01:00
Han Han
6a6d00e168 conf: Add rng backend model builtin
The 'builtin' rng backend model can be used as following:
  <rng model='virtio'>
    <backend model='builtin'/>
  </rng>

Signed-off-by: Han Han <hhan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-01-24 17:03:32 +01:00
Julio Faracco
c360dbb564 qemu: Converting DHCP and ARP functions to domain conf
QEMU driver has two functions: qemuGetDHCPInterfaces() and
qemuARPGetInterfaces() that are being used inside only one single
function. They can be turned into generic functions that other drivers
can use. This commit move both from QEMU driver tree to domain conf
tree.

Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-01-23 12:29:33 +01:00
Daniel P. Berrangé
3caa28dc50 src: replace gmtime_r/localtime_r/strftime with GDateTime
gmtime_r/localtime_r are mostly used in combination with
strftime to format timestamps in libvirt. This can all
be replaced with GDateTime resulting in simpler code
that is also more portable.

There is some boundary condition problem in parsing POSIX
timezone offsets in GLib which tickles our test suite.
The test suite is hacked to avoid the problem. The upsteam
GLib bug report is

  https://gitlab.gnome.org/GNOME/glib/issues/1999

Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-17 10:02:01 +00:00
Daniel P. Berrangé
fbf27730a3 conf: add support for specifying CPU "dies" parameter
Recently CPU hardware vendors have started to support a new structure
inside the CPU package topology known as a "die". Thus the hierarchy
is now:

  sockets > dies > cores > threads

This adds support for "dies" in the XML parser, with the value
defaulting to 1 if not specified for backwards compatibility.

For example a system with 64 logical CPUs might report

   <topology sockets="4" dies="2" cores="4" threads="2"/>

Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-16 15:11:42 +00:00
Ján Tomko
45464db8ba conf: do not generate machine names ending with a dash
As of systemd commit:

commit d65652f1f21a4b0c59711320f34266c635393c89
Author:     Zbigniew Jędrzejewski-Szmek <zbyszek@in.waw.pl>
CommitDate: 2018-12-10 09:56:56 +0100

    Partially unify hostname_is_valid() and dns_name_is_valid()

Dashes are no longer allowed at the end of machine names.

Trim the trailing dashes from the generated name before passing
it to machined.

https://bugzilla.redhat.com/show_bug.cgi?id=1790409

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2020-01-15 17:10:20 +01:00
Thomas Huth
177fbcdfaa domain_conf: Do not use USB by default for <input> devices on s390x
When trying to specify an input device on s390x without bus like this:

 <input type='keyboard'/>

... then libvirt currently complains:

 error: unsupported configuration: USB is disabled for this domain,
 but USB devices are present in the domain XML

This is somewhat confusing since the user did not specify an USB
device here. Since USB is not available on s390x, we should default
to the "virtio" bus here instead.

Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1790189
Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-01-13 13:39:37 +01:00
Peter Krempa
3f2d167d9c conf: Always format storage source auth and encryption under <source> for backing files
Historically there are two places where we format authentication and
encryption for a disk. The logich which formats it for backing files was
flawed though and didn't format it at all. This worked if the image
became a backing file through the means of a snapshot but not directly.

Force formatting of the source and encryption for any non-disk case to
fix the issue.

This caused problems in many places as we use the formatter to copy the
definition. Effectively any copy lost the secret definition.

https://bugzilla.redhat.com/show_bug.cgi?id=1789310
https://bugzilla.redhat.com/show_bug.cgi?id=1788898

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2020-01-13 12:53:58 +01:00
Ján Tomko
5120577ed7 conf: add private data to virDomainFSDef
Add an object to hold the private data and call the
allocation function if it's present in xmlopt.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-08 09:51:01 +01:00
Ján Tomko
a2430cc544 conf: add xmlopt to virDomainFSDefNew
This will be needed in the future for allocating private data.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-08 09:51:00 +01:00
Daniel Henrique Barboza
a7c024e26d conf: remove unneeded labels
Remove unneeded, easy to remove goto labels (cleanup|error|done|...).

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2020-01-07 16:40:41 +01:00
Michal Privoznik
7c5264d2be src: Introduce and use virDomainDefHasOldStyleUEFI() and virDomainDefHasOldStyleROUEFI()
These functions are meant to replace verbose check for the old
style of specifying UEFI with a simple function call.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-07 16:26:47 +01:00
Daniel P. Berrangé
fcea025d0e src: remove use of g_date_time_new_from_iso8601 function
The g_date_time_new_from_iso8601() function was introduced as
a replacement for strptime in

  commit 810613a60e
  Author: Daniel P. Berrangé <berrange@redhat.com>
  Date:   Mon Dec 23 15:37:26 2019 +0000

    src: replace strptime()/timegm()/mktime() with GDateTime APIs set

Unfortunately g_date_time_new_from_iso8601 isn't available until
glib 2.56, and backporting it requires alot of code copying and
poking at private glib structs.

This reverts domain_conf.c back to its original parsing logic prior
to 810613a60e, but using g_date_time_new()
instead of gmtime(). The other files are then adapted to follow a
similar approach.

Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-07 14:42:26 +00:00
Daniel P. Berrangé
810613a60e src: replace strptime()/timegm()/mktime() with GDateTime APIs set
All places where we use strptime/timegm()/mktime() are handling
conversion of dates in a format compatible with ISO 8601, so we
can use the GDateTime APIs to simplify code.

Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2020-01-03 15:42:13 +00:00
Daniel Henrique Barboza
96999404cb Introducing new address type='unassigned' for PCI hostdevs
This patch introduces a new PCI hostdev address type called
'unassigned'. This new type gives users the option to add
PCI hostdevs to the domain XML in an 'unassigned' state, meaning
that the device exists in the domain, is managed by Libvirt
like any regular PCI hostdev, but the guest does not have
access to it.

This adds extra options for managing PCI device binding
inside Libvirt, for example, making all the managed PCI hostdevs
declared in the domain XML to be detached from the host and bind
to the chosen driver and, at the same time, allowing just a
subset of these devices to be usable by the guest.

Next patch will use this new address type in the QEMU driver to
avoid adding unassigned devices to the QEMU launch command line.

Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
2019-12-18 13:08:27 -05:00
Michal Privoznik
abd7c4c746 domain_conf: Introduce virDomainDefHasNVMeDisk
This function will return true if any of disks (or their backing
chain) for given domain contains an NVMe disk.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
ACKed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
2019-12-17 10:04:43 +01:00
Michal Privoznik
8cd7196974 conf: Format and parse NVMe type disk
To simplify implementation, some restrictions are added. For
instance, an NVMe disk can't go to any bus but virtio and has to
be type of 'disk' and can't have startupPolicy set.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
2019-12-17 10:04:43 +01:00
Huaqiang
40a070ae01 conf: create memory bandwidth monitor.
Following domain configuration changes create two memory bandwidth
monitors: one is monitoring the bandwidth consumed by vCPU 0,
another is for vCPU 5.

```
               <cputune>
                 <memorytune vcpus='0-4'>
                   <node id='0' bandwidth='20'/>
                   <node id='1' bandwidth='30'/>
       +           <monitor vcpus='0'/>
                 </memorytune>
       +         <memorytune vcpus='5'>
       +           <monitor vcpus='5'/>
       +         </memorytune>

               </cputune>
    ```

Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Huaqiang <huaqiang.wang@intel.com>
2019-12-13 15:55:43 +00:00
Peter Krempa
08b810053a Add 'backup' block job type
A backup job may consist of many backup sub-blockjobs. Add the new
blockjob type and add all type converter strings.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-12-10 12:41:57 +01:00
Daniel P. Berrangé
78d8228eec conf: drop virCapsPtr param from APIs for saving domains
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:17:27 +00:00
Daniel P. Berrangé
24d87d2e88 conf: drop virCapsPtr param from domain APIs for copying config
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:17:27 +00:00
Daniel P. Berrangé
bf9d812956 conf: drop virCapsPtr param from domain parse APIs
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:17:27 +00:00
Daniel P. Berrangé
b5f591cdb4 conf: drop virCapsPtr param from domain post parse & validate APIs
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:17:27 +00:00
Daniel P. Berrangé
61bff77bf9 conf: drop virCapsPtr param from domain formatting APIs
This parameter is now unused and can be removed entirely.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:17:27 +00:00
Daniel P. Berrangé
04c960dd64 conf: drop virCapsPtr param from domain validate callback
None of the impls of this callback require the virCapsPtr param.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:17:27 +00:00
Daniel P. Berrangé
33b62676f8 conf: drop virCapsPtr param from device post parse callback
None of the impls of this callback require the virCapsPtr param.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:17:27 +00:00
Daniel P. Berrangé
c919336288 conf: drop virCapsPtr param from post parse callback
No impl of this callback requires the virCapsPtr anymore.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:17:27 +00:00
Daniel P. Berrangé
227a0503e2 conf: drop virCapsPtr param from post parse data alloc callback
The only user of this callback did not require the virCapsPtr parameter.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:17:27 +00:00
Daniel P. Berrangé
74fb858f7d conf: drop virCapsPtr param from basic post parse callback
The QEMU impl of the callback can directly use the QEMU capabilities
cache to resolve the emulator binary name, allowing virCapsPtr to be
dropped.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:17:19 +00:00
Daniel P. Berrangé
a7ef72a8fd conf: drop virCapsPtr param from assign addresses callback
The virCapsPtr param is not used by any of the virt drivers providing
this callback.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:15:16 +00:00
Daniel P. Berrangé
638ffa2228 conf: pass default sec model in parser config
Instead of using the virCapsPtr to get the default security model,
pass this in via the parser config.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:15:16 +00:00
Daniel P. Berrangé
99a949ffc4 conf: move seclabel validation into post-parse phase
Currently the disk and chardev seclabels are validated immediately at
the time their data is parsed. This forces the parser to fill in the
top level secmodel at time of parsing which is an undesirable thing.
This validation conceptually should be done in the post-parse phase
instead.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:15:16 +00:00
Daniel P. Berrangé
a7b6e49d00 conf: pass netprefix in the domain parser config struct
Instead of using the virCapsPtr information, pass the driver specific
netprefix in the domain parser struct. This eliminates one more use of
virCapsPtr from the XML parsing/formatting code.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:15:16 +00:00
Daniel P. Berrangé
2578d74aee conf: move virt type / os type / arch validation to post-parse
The XML parser currently calls virCapabilitiesDomainDataLookup during
parsing to find the domain capabilities matching the triple

  (virt type, os type, arch)

This is, however, bogus with the QEMU driver as it assumes that there
is an emulator known to the default driver capabilities that matches
this triple. It is entirely possible for the driver to be parsing an
XML file with a custom emulator path specified pointing to a binary
that doesn't exist in the default driver capabilities.  This will,
for example be the case on a RHEL host which only installs the host
native emulator to /usr/bin. The user can have built a custom QEMU
for non-native arches into $HOME and wish to use that.

Aside from validation, this call is also used to fill in a machine type
for the guest if not otherwise specified. Again, this data may be
incorrect for the QEMU driver because it is not taking account of
the emulator binary that is referenced.

To start fixing this, move the validation to the post-parse callbacks
where more intelligent driver specific logic can be applied.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:15:16 +00:00
Daniel P. Berrangé
6430c00552 conf: pass in default architecture via domain XML options
When parsing the guest XML we must fill in the default guest arch if it
is not already present because later parts of the parsing process need
this information.

If no arch is specified we lookup the first guest in the capabilities
data matching the os type and virt type. In most cases this will result
in picking the host architecture but there are some exceptions...

 - The test driver is hardcoded to always use i686 arch
 - The VMWare/ESX drivers will always place i686 guests ahead
   of x86_64 guests in capabilities, so effectively they always
   use i686
 - The QEMU driver can potentially return any arch at all
   depending on what combination of QEMU binaries are installed.

The domain XML hardware configurations are inherently architecture
specific in many places. As a result whomever/whatever created the
domain XML will have had a particular architecture in mind when
specifying the config. In pretty much any sensible case this arch
will have been the native host architecture. i686 on x86_64 is
the only sensible divergance because both these archs are
compatible from a domaain XML config POV.

IOW, although the QEMU driver can pick an almost arbitrary arch as its
default, in the real world no application or user is likely to be
relying on this default arch being anything other than native.

With all this in mind, it is reasonable to change the XML parser to
allow the default architecture to be passed via the domain XML options
struct. If no info is explicitly given then it is safe & sane to pick
the host native architecture as the default for the guest.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:15:16 +00:00
Daniel P. Berrangé
92d412149c conf: sanitize virDomainObjFormat & virDomainDefFormat* APIs
Moving their instance parameter to be the first one, and give consistent
ordering of other parameters across all functions. Ensure that the xml
options are passed into both functions in prep for future work.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:15:16 +00:00
Daniel P. Berrangé
908701c64a conf: sanitize virDomainSaveStatus & virDomainSaveConfig APIs
Our normal practice is for the object type to be the name prefix, and
the object instance be the first parameter passed in.

Rename these to virDomainObjSave and virDomainDefSave moving their
primary parameter to be the first one. Ensure that the xml options
are passed into both functions in prep for future work.

Finally enforce checking of the return type and mark all parameters
as non-NULL.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2019-12-09 10:15:16 +00:00
Jidong Xia
863c0d8e8d qemu: cold-unplug of sound
With this patch users can cold unplug some sound devices.
use "virsh detach-device vm sound.xml --config" command.

Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Jidong Xia <xiajidong@cmss.chinamobile.com>
2019-12-08 19:41:34 -05:00
Han Han
0e37372291 conf: fix logic error for scsi units
Introduced in c8007fdc5d, it should use 'greater than max' instead of
'equal or greater than max' for the condition of checking invalid scsi
unit.

Signed-off-by: Han Han <hhan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2019-12-04 13:20:57 +01:00
Laine Stump
9d6920bd7d net/qemu: move vlan/bandwidth validation out of network driver
In the past the network driver was (mistakenly) being called for all
interfaces, not just those of type='network', and so it had a chance
to validate all interface configs after the actual type of the
interface was known.

But since the network driver has been more completely/properly
separated from qemu, the network driver isn't called during the
startup of any interfaces except those with type='network', so this
validation no longer takes place for, e.g. <interface type='bridge'>
(or direct, etc). This in turn meant that a config could erroneously
specify a vlan tag, or bandwidth settings, for a type of interface
that didn't support it, and the domain would start without complaint,
just silently ignoring those settings.

This patch moves those validation checks out of the network driver,
and into virDomainActualNetDefValidate() so they will be done for all
interfaces, not just type='network'.

https://bugzilla.redhat.com/1741121
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
2019-11-25 15:30:10 -05:00
Laine Stump
b03d9e9593 conf: add hypervisor agnostic, domain start-time, validation function for NetDef
<interface> devices (virDomainNetDef) are a bit different from other
types of devices in that their actual type may come from a network (in
the form of a port connection), and that doesn't happen until the
domain is started. This means that any validation of an <interface> at
parse time needs to be a bit liberal in what it accepts - when
type='network', you could think that something is/isn't allowed, but
once the domain is started and a port is created by the configured
network, the opposite might be true.

To solve this problem hypervisor drivers need to do an extra
validation step when the domain is being started. I recently (commit
3cff23f7, libvirt 5.7.0) added a function to peform such validation
for all interfaces to the QEMU driver -
qemuDomainValidateActualNetDef() - but while that function is a good
single point to call for the multiple places that need to "start" an
interface (domain startup, device hotplug, device update), it can't be
called by the other hypervisor drivers, since 1) it's in the QEMU
driver, and 2) it contains some checks specific to QEMU. For
validation that applies to network devices on *all* hypervisors, we
need yet another interface validation function that can be called by
any hypervisor driver (not just QEMU) right after its network port has
been created during domain startup or hotplug. This patch adds that
function - virDomainActualNetDefValidate(), in the conf directory,
and calls it in appropriate places in the QEMU, lxc, and libxl
drivers.

This new function is the place to put all network device validation
that 1) is hypervisor agnostic, and 2) can't be done until we know the
"actual type" of an interface.

There is no framework for validation at domain startup as there is for
post-parse validation, but I don't want to create a whole elaborate
system that will only be used by one type of device. For that reason,
I just made a single function that should be called directly from the
hypervisors, when they are initializing interfaces to start a domain,
right after conditionally allocating the network port (and regardless
of whether or not that was actually needed). In the case of the QEMU
driver, qemuDomainValidateActualNetDef() is already called in all the
appropriate places, so we can just call the new function from
there. In the case of the other hypervisors, we search for
virDomainNetAllocateActualDevice() (which is the hypervisor-agnostic
function that calls virNetworkPortCreateXML()), and add the call to our
new function right after that.

The new function itself could be plunked down into many places in the
code, but we already have 3 validation functions for network devices
in 2 different places (not counting any basic validation done in
virDomainNetDefParseXML() itself):

1) post-parse hypervisor-agnostic
   (virDomainNetDefValidate() - domain_conf.c:6145)
2) post-parse hypervisor-specific
   (qemuDomainDeviceDefValidateNetwork() - qemu_domain.c:5498)
3) domain-start hypervisor-specific
   (qemuDomainValidateActualNetDef() - qemu_domain.c:5390)

I placed (3) right next to (2) when I added it, specifically to avoid
spreading validation all over the code. For the same reason, I decided
to put this new function right next to (1) - this way if someone needs
to add validation specific to qemu, they go to one location, and if
they need to add validation applying to everyone, they go to the
other. It looks a bit strange to have a public function in between a
bunch of statics, but I think it's better than the alternative of
further fragmentation. (I'm open to other ideas though, of course.)

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
2019-11-25 15:30:05 -05:00
Laine Stump
012624217e conf: change args/return values of remaining virDomainNetGetActual*() to const
These all just return a scalar value, so there's no daisy-chained
fallout from changing them, and they can easily be combined in a
single patch.

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
2019-11-25 15:30:00 -05:00
Laine Stump
fdcd273be2 conf: return a const from virDomainNetGetActualVirtPortProfile
This also isn't required (due to the vportprofile being stored in the
NetDef as a pointer rather than being directly contained), but it
seemed dishonest to not mark it as const (and thus permit users to
modify its contents)

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
2019-11-25 15:29:56 -05:00
Laine Stump
583ac17f5d conf: make virDomainNetGetActualBandwidth arg/return value const
In this case, the virNetDevBandwidthPtr that is returned is not to a
region within the virDomainNetDef arg, but points elsewhere (the
NetDef has the pointer, not the entire object), so technically it's
not necessary to make the return value a const, but it's a bit
disingenuous to *not* do it.

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
2019-11-25 15:29:51 -05:00
Laine Stump
12207fcfcf conf: make virDomainNetGetActualVlan arg/return val const
This is needed if we want to call the function when the
virDomainNetDef* we have is a const.

Since virDomainNetGetActualVlan returns a pointer to memory that is
within the virDomainNetDefPtr arg, the returned pointer must also be
made const. This leads to a cascade of other virNetDevVlanPtr's that
must be changed to "const virNetDevVlan *".

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
2019-11-25 15:29:46 -05:00
Jonathon Jongsma
889cd827ae conf: validate video resolution
Ensure that both x and y are non-zero when resolution is specified for a
video device.

Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
2019-11-15 13:30:56 -05:00
Jonathon Jongsma
026c2ffb50 conf: report errors when parsing video acceleration
Since this function is now only called when an 'acceleration' element is
present in the xml, any failure to parse the element will be considered
an error.

Previously, we detected some types of errors, but we would only log an
error (virReportError()), but still return a partially-specified accel
object to the caller. This patch returns NULL for all parsing errors and
reports that error back up to the caller.

Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
2019-11-15 13:30:56 -05:00
Jonathon Jongsma
754e4c24ec conf: report errors when parsing video resolution
The current code doesn't properly handle errors when parsing a video
device's resolution.  We were returning a NULL structure for the case
where 'x' or 'y' were missing. But for the other error cases, we were
logging an error (virReportError()), but still returning an
under-specified structure. That under-specified structure was used by
the calling function rather than properly reporting an error.

This patch changes the parse function to return NULL on any parsing
error and changes the calling function to report an error when NULL is
returned.

Reviewed-by: Cole Robinson <crobinso@redhat.com>
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
2019-11-15 13:30:56 -05:00