Commit Graph

164 Commits

Author SHA1 Message Date
Peter Krempa
97ea8da183 virStorageNetHostDef: Turn @port into integer
Currently, @port is type of string. Well, that's overkill and
waste of memory. Port is always an integer. Use it as such.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2017-07-24 10:55:44 +02:00
Andrea Bolognani
1d0c6f59b6 conf: Rename virDomainHostdevDefAlloc() to virDomainHostdevDefNew()
All other virDomain*Def follow this naming convention for
their allocation function.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
2017-07-21 17:03:43 +02:00
Wim ten Have
4cd3f24139 xenconfig: fix handling of NULL disk source
It is possible to crash libvirtd when converting xl native config to
domXML when the xl config contains an empty disk source, e.g. an empty
CDROM. Fix by checking that the disk source is non-NULL before parsing it.

Signed-off-by: Wim ten Have <wim.ten.have@oracle.com>
2017-05-19 08:47:36 -06:00
Wim ten Have
8659e7ffe3 xenconfig: add conversions for xen-xl
Per xen-xl conversions from and to native under host-passthrough
mode we take care for Xen (nestedhvm = mode) applied and inherited
settings generating or processing correct feature policy:

[On Intel (VT-x) architectures]
<feature policy='disable' name='vmx'/>

or

[On AMD (AMD-V) architectures]
<feature policy='disable' name='svm'/>

It will then generate (or parse) for nestedhvm=1 in/from xl format.

Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Signed-off-by: Wim ten Have <wim.ten.have@oracle.com>
2017-04-27 15:05:44 -06:00
Jim Fehlig
b2c12f5765 xenconfig: avoid double free on OOM testing
Fix xlconfig channel tests when OOM testing is enabled.

TEST: xlconfigtest
32) Xen XL-2-XML Format channel-unix                                  ... OK
    Test OOM for nalloc=55 ................................................*** Error in `/home/jfehlig/virt/upstream/libvirt/tests/.libs/xlconfigtest': double free or corruption (fasttop): 0x0000000000679550 ***
...
(gdb) bt
#0  0x00007ffff36875af in raise () from /lib64/libc.so.6
#1  0x00007ffff36889aa in abort () from /lib64/libc.so.6
#2  0x00007ffff36c5150 in __libc_message () from /lib64/libc.so.6
#3  0x00007ffff36cb4f6 in malloc_printerr () from /lib64/libc.so.6
#4  0x00007ffff36cbcee in _int_free () from /lib64/libc.so.6
#5  0x00007ffff782babf in virFree (ptrptr=0x7fffffffdca8) at util/viralloc.c:582
#6  0x000000000042f2f3 in xenParseXLChannel (conf=0x677350, def=0x6815b0) at xenconfig/xen_xl.c:788
#7  0x000000000042f44e in xenParseXL (conf=0x677350, caps=0x6832b0, xmlopt=0x67f6e0) at xenconfig/xen_xl.c:828
#8  0x00000000004105a3 in testCompareFormatXML (
    xlcfg=0x6811e0 "/home/jfehlig/virt/upstream/libvirt/tests/xlconfigdata/test-channel-unix.cfg",
    xml=0x681110 "/home/jfehlig/virt/upstream/libvirt/tests/xlconfigdata/test-channel-unix.xml", replaceVars=false)
    at xlconfigtest.c:152

When a channel is successfully parsed and its path and name fields
assigned from local variables, set the local variables to NULL to
prevent a double free on error.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2017-04-18 11:41:06 -06:00
Wim ten Have
2c1a31a375 xenFormatXLDomainDisks: avoid double free on OOM testing
Fix xlconfigtest runs build for --enable-test-oom on
        Xen XL-2-XML Parse  new-disk

    #0  0x00007ffff3bd791f in raise () from /lib64/libc.so.6
    #1  0x00007ffff3bd951a in abort () from /lib64/libc.so.6
    #2  0x00007ffff3c1b200 in __libc_message () from /lib64/libc.so.6
    #3  0x00007ffff3c2488a in _int_free () from /lib64/libc.so.6
    #4  0x00007ffff3c282bc in free () from /lib64/libc.so.6
    #5  0x00007ffff7864fcb in virFree (ptrptr=ptrptr@entry=0x7fffffffd868) at util/viralloc.c:582
    #6  0x00007ffff78776e5 in virConfFreeValue (val=<optimized out>) at util/virconf.c:178
==> #7  0x0000000000425759 in xenFormatXLDomainDisks (def=0x7fffffffd8c0, def=0x7fffffffd8c0, conf=0x658220)
        at xenconfig/xen_xl.c:1159
    #8  xenFormatXL (def=def@entry=0x66ec20, conn=conn@entry=0x668cf0) at xenconfig/xen_xl.c:1558
    #9  0x000000000040ea1d in testCompareParseXML (replaceVars=<optimized out>,
        xml=0x65f5e0 "/home/wtenhave/WORK/libvirt/history/libvirt/tests/xlconfigdata/test-fullvirt-ovmf.xml",
        xlcfg=0x65f6b0 "/home/wtenhave/WORK/libvirt/history/libvirt/tests/xlconfigdata/test-fullvirt-ovmf.cfg")
        at xlconfigtest.c:105
    #10 testCompareHelper (data=<optimized out>) at xlconfigtest.c:205
    #11 0x000000000041079a in virTestRun (title=title@entry=0x431cf0 "Xen XL-2-XML Parse  fullvirt-ovmf",
        body=body@entry=0x40e720 <testCompareHelper>, data=data@entry=0x7fffffffda50) at testutils.c:247
    #12 0x000000000040ebc2 in mymain () at xlconfigtest.c:256
    #13 0x0000000000411070 in virTestMain (argc=1, argv=0x7fffffffdc08, func=0x40f2c0 <mymain>) at testutils.c:992
    #14 0x00007ffff3bc2401 in __libc_start_main () from /lib64/libc.so.6
    #15 0x000000000040e5da in _start ()

symmetry seems missing its sibbling coded functionality
demonstrated under functions;
        xenFormatXLUSBController()
        xenFormatXLUSB()
        xenFormatXLDomainChannels()
        xenFormatXMDisks

Signed-off-by: Wim ten Have <wim.ten.have@oracle.com>
2017-04-13 10:55:13 -06:00
Joao Martins
91ac80a986 xenconfig: fix xml to xl.cfg conversion with no graphics
If no graphics element is in XML xenFormatXLSpice will access
graphics without checking it has one in the first place, leading to a
segmentation fault.

Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
2017-02-08 08:41:13 -07:00
Michal Privoznik
aaf0ac7e7c xenFormatXLDisk: Don't leak @target
==11260== 1,006 bytes in 1 blocks are definitely lost in loss record 106 of 111
==11260==    at 0x4C2AE5F: malloc (vg_replace_malloc.c:297)
==11260==    by 0x4C2BDFF: realloc (vg_replace_malloc.c:693)
==11260==    by 0x4EA430B: virReallocN (viralloc.c:245)
==11260==    by 0x4EA7C52: virBufferGrow (virbuffer.c:130)
==11260==    by 0x4EA7D28: virBufferAdd (virbuffer.c:165)
==11260==    by 0x4EA8E10: virBufferStrcat (virbuffer.c:718)
==11260==    by 0x42D263: xenFormatXLDiskSrcNet (xen_xl.c:960)
==11260==    by 0x42D4EB: xenFormatXLDiskSrc (xen_xl.c:1015)
==11260==    by 0x42D870: xenFormatXLDisk (xen_xl.c:1101)
==11260==    by 0x42DA89: xenFormatXLDomainDisks (xen_xl.c:1148)
==11260==    by 0x42EAF8: xenFormatXL (xen_xl.c:1558)
==11260==    by 0x40E85F: testCompareParseXML (xlconfigtest.c:105)

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2017-02-07 10:31:59 +01:00
Jim Fehlig
b4386fdac7 xenconfig: add support for more timers
Currently xenconfig only supports the hpet timer for HVM domains.
Include support for tsc timer for both PV and HVM domains.
2017-01-24 16:18:13 -07:00
Cédric Bosdonnat
9cae9c886b xen: add QED format test
Follow up of commit 340bb6b7 to add unit tests for the QED format
support. Also add missing QED case in xenFormatXLDisk()
2016-12-21 15:06:40 +01:00
Cédric Bosdonnat
340bb6b7ef libxl: add QED disk format support
If libxl has QED disk format support, then pass the feature
over to the user.
2016-12-14 18:03:08 +01:00
Cédric Bosdonnat
cb25972fd1 xenconfig: add default in xenParseXLDisk()'s switches
Without a default: case in the switches in xenParseXLDisk(), build
would fail with every new disk backend or image format added in libxl,
as this is the case in this error:

http://logs.test-lab.xenproject.org/osstest/logs/103325/build-amd64-libvirt/5.ts-libvirt-build.log
2016-12-14 18:02:58 +01:00
Michal Privoznik
484f7d0069 xenFormatXLDisk: Unify commas pattern for arguments
instead of:

  virBufferAdd(buf, "arg1,");
  virBufferAdd(buf, "arg2");

lets have:

  virBufferAdd(buf, "arg1");
  virBufferAdd(buf, ",arg2");

Because it's better. Consider we want to add conditionally arg3.
With this change, it's simple:

  if (cond)
    virBufferAdd(buf, ",arg3");

with current code there might be a comma hanging at EOL.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-10-24 06:12:23 +02:00
John Ferlan
77a12987a4 Introduce virDomainChrSourceDefNew for virDomainChrDefPtr
Change the virDomainChrDef to use a pointer to 'source' and allocate
that pointer during virDomainChrDefNew.

This has tremendous "fallout" in the rest of the code which mainly
has to change source.$field to source->$field.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-10-21 14:03:36 -04:00
John Ferlan
5f2a132786 qemu: Introduce qemuDomainChardevPrivatePtr
Modeled after the qemuDomainHostdevPrivatePtr (commit id '27726d8c'),
create a privateData pointer in the _virDomainChardevDef to allow storage
of private data for a hypervisor in order to at least temporarily store
secret data for usage during qemuBuildCommandLine.

NB: Since the qemu_parse_command (qemuParseCommandLine) code is not
expecting to restore the secret data, there's no need to add code
code to handle this new structure there.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-10-19 15:40:29 -04:00
Cédric Bosdonnat
710d875fb7 xl: fix 8126d870 broken test
xlconfigtest expects the comma, don't clean it up even if there is
no target to write.
2016-10-19 20:53:30 +02:00
Cédric Bosdonnat
8126d87078 xl: don't output (null) target in domxml-to-native
When converting a domain xml containing a CDROM device without
any attached source, don't add a target=(null) to the libxl config
disk definition: xen doesn't like it at all and would fail to start
the domain.
2016-10-19 15:21:34 +02:00
Joao Martins
9a683f8892 xenconfig: channels conversion support
Add support for formating/parsing libxl channels.

Syntax on xen libxl goes as following:
channel=["connection=pty|socket,path=/path/to/socket,name=XXX",...]

Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
Acked-by: Jim Fehlig <jfehlig@suse.com>
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2016-09-27 15:15:03 -06:00
Michal Privoznik
940d91c55b virDomainDefPostParse: Introduce @parseOpaque argument
Some callers might want to pass yet another pointer to opaque
data to post parse callbacks. The driver generic one is not
enough because two threads executing post parse callback might
want to see different data (e.g. domain object pointer that
domain def belongs to).

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-09-26 16:50:12 +02:00
Bob Liu
faaebe1795 xenconfig: rm format/parse multi serial for xen-xm
xen-xm doesn't support multi serial at all, this patch drop the
domXML <-> xl.cfg conversions.

Signed-off-by: Bob Liu <bob.liu@oracle.com>
2016-09-02 12:46:02 -06:00
Chunyan Liu
9a361bbba8 xenconfig: add conversion of usb controller config to and from xml
libxl configuration files conversion can now handle USB controllers.
When parting libxl config file, USB controllers with type PV are
ignored as those aren't handled.

Signed-off-by: Chunyan Liu <cyliu@suse.com>
2016-08-02 14:02:21 +02:00
Peter Krempa
29f06ff548 util: storage: Add 'ssh' network storage protocol
Allow using 'ssh' protocol in backing chains and later for disks
themselves.
2016-07-27 13:24:20 +02:00
Andrea Bolognani
b1cd34233d util: conf: Rename VIR_CONF_{U,}LONG -> VIR_CONF_{U,}LLONG
Since commit 6381c89f8c, we're storing long long integers
instead of long integers. Rename the corresponding virConfType
value accordingly.
2016-07-18 15:49:57 +02:00
Peter Krempa
5fe0b6b0a7 conf: Add private data for virDomainVcpuDef
Allow to store driver specific data on a per-vcpu basis.

Move of the virDomainDef*Vcpus* functions was necessary as
virDomainXMLOptionPtr was declared below this block and I didn't want to
split the function headers.
2016-07-11 10:44:04 +02:00
Laine Stump
fbc1843d2e conf: use virNetDevIPInfo for guest-side <interface> config
All the same information was already there, just in slightly different
places in the virDomainNetDef.
2016-06-26 19:33:09 -04:00
Laine Stump
22a6873a98 global: consistently use IP rather than Ip in identifiers
I'm tired of mistyping this all the time, so let's do it the same all
the time (similar to how we changed all "Pci" to "PCI" awhile back).

(NB: I've left alone some things in the esx and vbox drivers because
I'm unable to compile them and they weren't obviously *not* a part of
some API. I also didn't change a couple of variables named,
e.g. "somethingIptables", because they were derived from the name of
the "iptables" command)
2016-06-26 19:33:07 -04:00
Ján Tomko
ff52e9d43a Remove separator argument from virBitmapParse
Most the callers pass 0 in one form or another, including
vircapstest which used VIR_ARCH_NONE.
2016-06-20 12:09:52 +02:00
Peter Krempa
f8d565bf86 conf: Rename virDomainDefGetMemoryActual to virDomainDefGetMemoryTotal 2016-06-17 10:39:40 +02:00
Jim Fehlig
e33cd67a9b xenconfig: fix conversion of <driver> to backendtype
When converting domXML to xen xl.cfg, backendtype should
not be emitted if <driver> is not specified. Moreover,
<driver name='file'/> should be converted to backendtype
qdisk, similar to handling of <driver> in libxlMakeDisk()
in libxl_conf.c.

Prior to this change, connectDomainXMLToNative would
produce incorrect xl.cfg when the input domXML contained
<driver name='file'/>

domXML:

  <disk type="file" device="disk">
    <driver name="file"/>
    <source file="/image/file/path"/>
    <target dev="xvda" bus="xen"/>
  </disk>

virsh domxml-to-native xen-xl domXML

disk = [ "format=raw,vdev=xvda,access=rw,backendtype=target=/image/file/path" ]

xl create xl.cfg
config parsing error in disk specification: unknown value
for backendtype: near `target=/image/file/path' in
`format=raw,vdev=xvda,access=rw,backendtype=target=/image/file/path'
2016-06-16 12:31:04 -06:00
Chunyan Liu
44c99f2500 Add conversion of domxml USB config to/from xl.cfg
xl.cfg:
usbdev = [ "hostbus=1,hostaddr=3" ]

usb.xml:
  <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>
2016-06-14 14:33:15 -06:00
Jim Fehlig
53d98ccea7 xenconfig: support bios=ovmf xl.cfg
Add support to xenconfig for conversion of xl.cfg(5) bios config
to/from libvirt domXml <loader> config. SeaBIOS is the default
for HVM guests using upstream QEMU. ROMBIOS is the default when
using the old qemu-dm. This patch allows specifying OVMF as an
alternate firmware.

Example xl.cfg:
  bios = "ovmf"

Example domXML:
  <os>
    ...
    <loader readonly='yes' type='pflash'>/usr/lib/xen/boot/ovmf.bin</loader>
  </os>

Note that currently Xen does not support a separate nvram for
non-volatile variables.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2016-06-13 14:13:17 -06:00
Philipp Hahn
fafcc64a07 xen: Also add sub-type for driver=tap2 in xen-xm
tap2 only handles 'aio', but not 'raw', which must be explicitly given:

| $ virsh domxml-to-native yyy.xml > yyy.xm
| $ xm new yyy.xm
| Error: tap:/srv/xen/xxx.img not a valid disk type
| $ sed -i -e 's/tap2:/&aio:/' yyy.xm
| $ xm new yyy.xm

Fix reading and writing "xen-xm" format for "tap2" by handling it the
same as "tap".
2016-06-07 13:59:58 -06:00
Joao Martins
293668cd70 xenconfig: xm: check for driver on disk format
When reviewing libxl vif typename series[0] I found a bug
on xen-xm formatter where "virsh domxml-to-native xen-xm file.xml"
can lead to a NULL dereference if the disk driver isn't specified.
Fix this by checking for driver before writing/testing it down.

[0] https://www.redhat.com/archives/libvir-list/2016-April/msg01434.html

Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
2016-05-24 19:19:50 -06:00
Pavel Hrdina
6bd0cd3b73 graphics: rename gListen to glisten
We have both in the code.  Let's use only one format.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2016-05-20 10:05:56 +02:00
Chunyan Liu
03f8bba26e xenFormatNet: correct `type=netfront' to 'type=vif' to match libxl
According to current xl.cfg docs and xl codes, it uses type=vif
instead of type=netfront.

Currently after domxml-to-native, libvirt xml model=netfront will be
converted to xl type=netfront. This has no problem before, xen codes
for a long time just check type=ioemu, if not, set type to _VIF.

Since libxl uses parse_nic_config to avoid duplicate codes, it
compares 'type=vif' and 'type=ioemu' for valid parameters, others
are considered as invalid, thus we have problem with type=netfront
in xl config file.
 #xl create sles12gm-hvm.orig
 Parsing config from sles12gm-hvm.orig
 Invalid parameter `type'.

Correct the conversion in libvirt, so that it matchs libxl codes
and also xl.cfg.

Signed-off-by: Chunyan Liu <cyliu@suse.com>
2016-05-17 14:09:11 -06:00
Chunyan Liu
f1066d0d46 extract XEN_CONFIG_FORMAT_XM/XL to xen_common.h
Unify XEN_CONFIG_FORMAT_x and LIBXL_CONFIG_FORMAT_x to
XEN_CONFIG_FORMAT_x, and move to xen_common.h.

Signed-off-by: Chunyan Liu <cyliu@suse.com>
2016-05-17 14:09:11 -06:00
Pavel Hrdina
b33c14b342 graphics: make address attribute for listen type='address' optional
We support omitting listen attribute of graphics element so we should
also support omitting address attribute of listen element.  This patch
also updates libvirt to always add a listen element into domain XML
except for VNC graphics if socket attribute is specified.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2016-05-17 10:41:45 +02:00
Pavel Hrdina
76ee92562e graphics: use enums instead of int
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2016-05-06 14:33:48 +02:00
John Ferlan
27726d8c21 qemu: Introduce qemuDomainHostdevPrivatePtr
Modeled after the qemuDomainDiskPrivatePtr logic, create a privateData
pointer in the _virDomainHostdevDef to allow storage of private data
for a hypervisor in order to at least temporarily store auth/secrets
data for usage during qemuBuildCommandLine.

NB: Since the qemu_parse_command (qemuParseCommandLine) code is not
expecting to restore the auth/secret data, there's no need to add
code to handle this new structure there.

Updated copyrights for modules touched. Some didn't have updates in a
couple years even though changes have been made.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-05-02 06:10:19 -04:00
John Ferlan
727a3c5860 Resolve a couple of memory leaks
Commit id '4b75237f' seems to have triggered Coverity into finding
at least one memory leak in xen_xl.c for error path for cleanup where
the listenAddr would be leaked. Reviewing other callers, it seems that
qemu_parse_command.c would have the same issue, so just it too.
2016-04-16 08:04:14 -04:00
Pavel Hrdina
6e76738e54 build: fix build on RHEL-6
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>
2016-04-13 17:28:50 +02:00
Pavel Hrdina
f53bb3eda9 use virDomainGraphicsGetListen instead of the other getters
There is no point the use two different getters on the same listen
structure few lines apart.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2016-04-13 10:43:49 +02:00
Pavel Hrdina
4b75237fe6 domain_conf: introduce virDomainGraphicsListenAppendAddress
This effectively removes virDomainGraphicsListenSetAddress which was
used only to change the address of listen structure and possible change
the listen type.  The new function will auto-expand the listens array
and append a new listen.

The old function was used on pre-allocated array of listens and in most
cases it only "add" a new listen.  The two remaining uses can access the
listen structure directly.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2016-04-13 10:43:49 +02:00
Jim Fehlig
4c9ffc5388 xenconfig: change 'hap' setting to align with Xen behavior
hap is enabled by default in xm and xl config and usually only
specified when it is desirable to disable hap (hap = 0). Change
the xm,xl <-> xml converter to behave similarly. I.e. only
produce 'hap = 0' when <hap state='off'/> and vice versa.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2016-03-21 09:28:17 -06:00
Michal Privoznik
e0392f5a74 xen: Check return value of virStringReplace
After 6604a3dd9f in which new helper function has been
introduced, the code calls virStringReplace and dereference the
result immediately. The string function can, however, return NULL
so this would SIGSEGV right away. Check for the return value of
the string function.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-02-23 15:46:19 +01:00
Jim Fehlig
6604a3dd9f xenconfig: support xl<->xml conversion of rbd disk devices
The target= setting in xl disk configuration can be used to encode
meta info that is meaningful to a backend. Leverage this fact to
support qdisk network disk types such as rbd. E.g. <disk> config
such as

   <disk type='network' device='disk'>
     <driver name='qemu' type='raw'/>
     <source protocol='rbd' name='pool/image'>
       <host name='mon1.example.org' port='6321'/>
       <host name='mon2.example.org' port='6322'/>
       <host name='mon3.example.org' port='6322'/>
     </source>
     <target dev='hdb' bus='ide'/>
     <address type='drive' controller='0' bus='0' target='0' unit='1'/>
   </disk>

can be converted to the following xl config (and vice versa)

  disk = [ "format=raw,vdev=hdb,access=rw,backendtype=qdisk,
            target=rbd:pool/image:auth_supported=none:mon_host=mon1.example.org\\:6321\\;mon2.example.org\\:6322\\;mon3.example.org\\:6322"
         ]

Note that in xl disk config, a literal backslash in target= must
be escaped with a backslash. Conversion of <auth> config is not
handled in this patch, but can be done in a follow-up patch.

Also add a test for the conversions.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2016-02-22 11:46:50 -07:00
Jim Fehlig
a44f1f85f9 xenconfig: produce key=value disk config syntax in xl formatter
The most formal form of xl disk configuration uses key=value
syntax to define each configuration item, e.g.

format=raw, vdev=xvda, access=rw, backendtype=phy, target=disksrc

Change the xl disk formatter to produce this syntax, which allows
target= to contain meta info needed to setup a network-based
disksrc (e.g. rbd, nbd, iscsi). For details on xl disk config
format, see  $xen-src/docs/misc/xl-disk-configuration.txt

Update the disk config in the tests to use the formal syntax.
But add tests to ensure disks specified with the positional
parameter syntax are correctly converted to <disk> XML.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2016-02-22 11:46:50 -07:00
Michal Privoznik
e01e1e16ef xenconfig: Properly check retval of virDomainGraphicsListenSetAddress
The function, like others in our code, returns zero on success
and a negative value on error. However, there are two places in
xenconfig source code where we check for non-zero value. While
the function can't currently return a positive value, those
checks look okay, but does not really follow our style.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-02-10 14:13:41 +01:00
Pavel Hrdina
36785c7e77 device: cleanup input device code
The current code was a little bit odd.  At first we've removed all
possible implicit input devices from domain definition to add them later
back if there was any graphics device defined while parsing XML
description.  That's not all, while formating domain definition to XML
description we at first ignore any input devices with bus different to
USB and VIRTIO and few lines later we add implicit input devices to XML.

This seems to me as a lot of code for nothing.  This patch may look
to be more complicated than original approach, but this is a preferred
way to modify/add driver specific stuff only in those drivers and not
deal with them in common parsing/formating functions.

The update is to add those implicit input devices into config XML to
follow the real HW configuration visible by guest OS.

There was also inconsistence between our behavior and QEMU's in the way,
that in QEMU there is no way how to disable those implicit input devices
for x86 architecture and they are available always, even without graphics
device.  This applies also to XEN hypervisor.  VZ driver already does its
part by putting correct implicit devices into live XML.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2016-01-26 17:53:33 +01:00
Ian Campbell
daeace5c5d libxl: Support cmdline= in xl config files
... and consolidate the cmdline/extra/root parsing to facilitate doing
so.

The logic is the same as xl's parse_cmdline from the current xen.git master
branch (e6f0e099d2c17de47fd86e817b1998db903cab61).

On the formatting side switch to producing cmdline= instead of extra=.

Update a few tests and add serveral more.
  - test-cmdline is added to test the exclusive use of cmdline.
  - test-fullvirt-direct-kernel-boot.cfg is updated due to the switch
    on the formatting side and now tests the exclusive use of cmdline=.
  - Tests are added for both paravirt and fullvirt where the .cfg uses
    extra= and (paravirt only) root=. These are format (xl->xml) only
    since the inverse will generate cmdline= hence is not a round trip
    (which was already true if using root=, which used to generate
    extra= on the way back).
  - Tests are added for both paravirt and fullvirt where the .cfg
    declares cmdline= as well as bogus extra= and (paravirt only) root=
    entries which should be ignored. Again these are format only tests
    since the inverse won't include the bogus lines.

The last two bullets here required splitting the DO_TEST macro into
two halves, as is done in the xmconfigtest.c case.

In order to introduce a use of VIR_WARN for logging I had to add
virerror.h and VIR_LOG_INIT.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
2016-01-21 10:48:44 -07:00
Jim Fehlig
8c3c32f16a Xen: add XENXL to virErrorDomain enum
Add "Xen XL Config" to the virErrorDomain enum and use it in
src/xenconfig/xen_xl.c.
2016-01-21 09:31:39 -07:00
Jim Fehlig
7d3698b47c Xen: VIR_FROM_THIS cleanup
The virErrorDomain enum has VIR_FROM_XEN, VIR_FROM_XEND,
VIR_FROM_XENSTORE, VIR_FROM_SEXPR, and VIR_FROM_XENXM. Use
these elements in the corresponding .c files. While at it,
remove the VIR_FROM_THIS define in src/xenconfig/xenxs_private.h.
2016-01-21 09:31:39 -07:00
Jim Fehlig
71daae9671 xenconfig: check return value of regcomp
Commit ec63000a missed checking the return value of regcomp(),
which coverity promptly identified.
2016-01-12 14:22:54 -07:00
Jim Fehlig
ec63000a62 xenconfig: support vif bandwidth in xm and xl parser and formatter
Both xm and xl config have long supported specifying vif rate
limiting, e.g.

vif = [ 'mac=00:16:3E:74:3d:76,bridge=br0,rate=10MB/s' ]

Add support for mapping rate to and from <bandwidth> in the xenconfig
parser and formatter. rate is mapped to the required 'average' attribute
of the <outbound> element, e.g.

  <interface type='bridge'>
    ...
    <bandwidth>
      <outbound average='10240'/>
    </bandwidth>
  </interface>

Also add a unit test to check the conversion logic.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2016-01-08 18:56:00 -07:00
Jim Fehlig
1dd34bbb4b xenconfig: support vif bandwidth in sexpr parser and formatter
The xen sexpr config format has long supported specifying vif rate
limiting, e.g.

  (device
    (vif
      (mac '00:16:3e:1b:b1:47')
      (rate '10240KB/s')
      ...
    )
  )

Add support for mapping rate to and from <bandwidth> in the xenconfig
sexpr parser and formatter. rate is mapped to the required 'average'
attribute of the <outbound> element, e.g.

  <interface type='bridge'>
    ...
    <bandwidth>
      <outbound average='10240'/>
    </bandwidth>
  </interface>

Also add unit tests to check the conversion logic.

This patch benefits both the old xen driver and the libxl driver.
Both drivers gain support for vif bandwidth when converting to/from
domXML and xen-sxpr. In addition, the old xen driver will now be
able to handle vif 'rate' setting when communicating with xend.
2016-01-08 18:56:00 -07:00
Pavel Hrdina
4100aecd13 xen: move virDomainDefPostParse to xenParseSxpr
This patch partially reverts previous commit 91a00424 and moves the post
parse function to xenParseSxpr.  This update is required because xen
driver calls xenParseSxpr directly.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2016-01-08 14:45:20 +01:00
Jim Fehlig
5b74103b0b Xen: support maxvcpus in xm and xl config
From: Ian Campbell <ian.campbell@citrix.com>

xend prior to 4.0 understands vcpus as maxvcpus and vcpu_avail
as a bit map of which cpus are online (default is all).

xend from 4.0 onwards understands maxvcpus as maxvcpus and
vcpus as the number which are online (from 0..N-1). The
upstream commit (68a94cf528e6 "xm: Add maxvcpus support")
claims that if maxvcpus is omitted then the old behaviour
(i.e. obeying vcpu_avail) is retained, but AFAICT it was not,
in this case vcpu==maxcpus==online cpus. This is good for us
because handling anything else would be fiddly.

This patch changes parsing of the virDomainDef maxvcpus and vcpus
entries to use the corresponding 'maxvcpus' and 'vcpus' settings
from xm and xl config. It also drops use of the old Xen 3.x
'vcpu_avail' setting.

The change also removes the maxvcpus limit of MAX_VIRT_VCPUS (since
maxvcpus is simply a count, not a bit mask), which is particularly
crucial on ARM where MAX_VIRT_CPUS == 1 (since all guests are
expected to support vcpu placement, and therefore only the boot
vcpu's info lives in the shared info page).

Existing tests adjusted accordingly, and new tests added for the
'maxvcpus' setting.
2015-12-18 17:52:00 -07:00
Jim Fehlig
60ac2aa821 Xen: xenconfig: remove xendConfigVersion from public sexpr functions
Remove use of xendConfigVersion in the s-expresion config formatter/parser
in src/xenconfig/. Adjust callers in the xen and libxl drivers accordingly.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-12-17 21:28:48 -07:00
Jim Fehlig
5ff2e370af Xen: xenconfig: remove use of XEND_CONFIG_VERSION in xen_sxpr
Remove use of XEND_CONFIG_VERSION_* in s-expression parser/formatter.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-12-17 21:22:34 -07:00
Jim Fehlig
bec993d60a Xen: xenconfig: remove disks from '(image)' sexpr
It has been quite some time since xend required specifying cdroms
and fds in '(image (hvm ...))'. Remove the code from the parsing
and formatting functions and fixup the associated tests.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-12-17 21:22:34 -07:00
Jim Fehlig
7d7c08be1c Xen: xenconfig: remove xendConfigVersion from public functions
Remove use of xendConfigVersion in the xm and xl config formatter/parsers
in src/xenconfig/. Adjust callers in the xen and libxl drivers accordingly.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-12-17 21:22:33 -07:00
Jim Fehlig
0f58db3092 Xen: xenconfig: remove use of XEND_CONFIG_VERSION in xen_xm
Remove use of XEND_CONFIG_VERSION_* in xm parser/formatter.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-12-17 21:22:33 -07:00
Jim Fehlig
4796d7b34b Xen: xenconfig: remove XEND_CONFIG_VERSION in common code
Remove use of XEND_CONFIG_VERSION_* from xenconfig/xen_common.c

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-12-17 21:22:33 -07:00
Peter Krempa
71c89ac9df conf: Replace read accesses to def->vcpus with accessor 2015-12-09 14:57:12 +01:00
Peter Krempa
957d597330 conf: Replace writes to def->vcpus with accessor 2015-12-09 14:57:12 +01:00
Peter Krempa
d1dda68777 conf: Replace read access to def->maxvcpus with accessor
Finalize the refactor by adding the 'virDomainDefGetVCpusMax' getter and
reusing it accross libvirt.
2015-12-09 14:57:12 +01:00
Peter Krempa
c970c4a5ea conf: Add helper to check whether domain has offline vCPUs
The new helper will simplify checking whether the domain config contains
inactive vCPUs.
2015-12-09 14:57:12 +01:00
Peter Krempa
4e187169f0 conf: Replace writes to def->maxvcpus with accessor
To support further refactors replace all write access to def->maxvcpus
with a accessor function.
2015-12-09 14:57:12 +01:00
Pavel Hrdina
5cc2d8f6d5 xen: fix timer bug found by updated test
Only 'tsc' timer allows set mode and track is valid only for 'rtc' and
'platform' timers.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2015-12-09 12:59:27 +01:00
Pavel Hrdina
91a00424db xen: use virDomainDefPostParse for parsing XM/XL/SEXPR cofings
This change ensures to call driver specific post-parse code to modify
domain definition after parsing hypervisor config the same way we do
after parsing XML.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2015-12-09 12:59:21 +01:00
Ishmanpreet Kaur Khera
32cee5b2f0 Avoid using !STREQ and !STRNEQ
We have macros for both positive and negative string matching.
Therefore there is no need to use !STREQ or !STRNEQ. At the same
time as we are dropping this, new syntax-check rule is
introduced to make sure we won't introduce it again.

Signed-off-by: Ishmanpreet Kaur Khera <khera.ishman@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2015-10-21 15:03:35 +02:00
Peter Krempa
8059a99025 conf: Rename max_balloon to total_memory
The name of the variable was misleading. Rename it and it's setting
accessor before other fixes.
2015-09-22 16:09:28 +02:00
Jonathan Toppins
5c668a78d8 qemu: add udp interface support
Adds a new interface type using UDP sockets, this seems only applicable
to QEMU but have edited tree-wide to support the new interface type.

The interface type required the addition of a "localaddr" (local
address), this then maps into the following xml and qemu call.

<interface type='udp'>
  <mac address='52:54:00:5c:67:56'/>
  <source address='127.0.0.1' port='11112'>
    <local address='127.0.0.1' port='22222'/>
  </source>
  <model type='virtio'/>
  <address type='pci' domain='0x0000' bus='0x00' slot='0x07' function='0x0'/>
</interface>

QEMU call:
	-net socket,udp=127.0.0.1:11112,localaddr=127.0.0.1:22222

Notice the xml "local" entry becomes the "localaddr" for the qemu call.

reference:
http://lists.gnu.org/archive/html/qemu-devel/2011-11/msg00629.html

Signed-off-by: Jonathan Toppins <jtoppins@cumulusnetworks.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2015-09-02 10:17:50 +02:00
John Ferlan
5cd985221b Use the correct symbol for 'onCrash'
Although defined the same way, fortunately there hadn't been any deviation.
Ensure any assignments to onCrash use VIR_DOMAIN_LIFECYCLE_CRASH_* defs and
not VIR_DOMAIN_LIFECYCLE_* defs
2015-06-30 11:32:50 -04:00
Jim Fehlig
a5b55bd931 xenconfig: fix spice mousemode and copypaste
From xl.cfg950 man page:

spiceagent_mouse=BOOLEAN
Whether SPICE agent is used for client mouse mode. The default is
true (1) (turn on)

spicevdagent=BOOLEAN
Enables spice vdagent. The Spice vdagent is an optional component for
enhancing user experience and performing guest-oriented management
tasks. Its features includes: client mouse mode (no need to grab
mouse by client, no mouse lag), automatic adjustment of screen
resolution, copy and paste (text and image) between client and domU.
It also requires vdagent service installed on domU o.s. to work.
The default is 0.

spice_clipboard_sharing=BOOLEAN
Enables Spice clipboard sharing (copy/paste). It requires spicevdagent
enabled. The default is false (0).

So if spiceagent_mouse is enabled (client mouse mode) or
spice_clipboard_sharing is enabled, spicevdagent must be enabled.
Along with this change, s/spicedvagent/spicevdagent, set
spiceagent_mouse correctly, and add a test for these spice
features.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-05-18 12:46:16 -06:00
Jim Fehlig
a460295f4e xenconfig: fix spicepasswd handling
The logic related to spicedisable_ticketing and spicepasswd was
inverted.  As per man xl.cfg(5), 'spicedisable_ticketing = 1'
means no passwd is required.  On the other hand, a passwd is
required if 'spicedisable_ticketing = 0'.  Fix the logic and
produce and error if 'spicedisable_ticketing = 0' but spicepasswd
is not provided.  Also fix the spice cfg test file.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-05-18 12:46:16 -06:00
Jim Fehlig
e21b1180a9 xenconfig: format spice listenAddr when formating ports
Move formating of spice listenAddr to the section of code
where spice ports are formatted.  It is more logical to
format address and ports together.  Account for the change
in spice cfg test file by moving 'spicehost'.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-05-18 12:46:16 -06:00
Jim Fehlig
096b39c961 xenconfig: use local variable for graphics def
'graphics->' is a bit easier to read and type, and makes for
shorter lines than 'def->graphics[0]->'.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-05-18 12:46:16 -06:00
Jiri Denemark
890fa6a055 Add privateData to virDomainDiskDef
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-05-15 08:04:26 +02:00
Cole Robinson
747761a79a caps: Use DomainDataLookup to replace GuestDefault*
This revealed that GuestDefaultEmulator was a bit buggy, capable
of returning an emulator that didn't match the passed domain type. Fix
up the test suite input to continue to pass.
2015-04-20 16:43:13 -04:00
Cole Robinson
4fa6f9b413 caps: Convert to use VIR_DOMAIN_VIRT internally 2015-04-20 16:40:26 -04:00
Cole Robinson
5f7c599456 domain: Convert os.type to VIR_DOMAIN_OSTYPE enum 2015-04-20 16:40:09 -04:00
Cole Robinson
4231485c1c caps: Use an enum internally for ostype value
But the internal API stays the same, and we just convert the value as
needed. Not useful yet, but this is the beginning step of using an enum
for ostype throughout the code.
2015-04-20 16:37:25 -04:00
Jim Fehlig
13e2c22099 libxl: support HVM direct kernel boot
Add support for HVM direct kernel boot in libxl.  Also add a
test to verify domXML <-> native conversions.

Signed-off-by: Chunyan Liu <cyliu@suse.com>
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-04-16 16:14:51 -06:00
Jim Fehlig
0fe504f15a xenconfig: don't use "kernel" for hvmloader
In xl config, hvmloader is implied for hvm guests.  It is not
specified with the "kernel" option like xm config.  The "kernel"
option, along with "ramdisk" and "extra", is used for HVM direct
kernel boot.  Instead of using "kernel" option to populate
virDomainDef object's os.loader->path, use hvmloader discovered
when gathering capabilities.

This change required fixing initialization of capabilities in
the test utils and removing 'kernel = "/usr/lib/xen/boot/hvmloader"'
from the test config files.
2015-04-16 16:11:01 -06:00
Jim Fehlig
717a92513d xenconfig: move <os> parsing/formating to config-specific files
xl and xm differ a bit in how <os> configuration is represented.
E.g. xl config supports <os><nvram .../></os> via its "bios"
setting.

Move the xenParseOS and xenFormatOS functions from xen_common.c
and copy to xen_xl.c and xen_xm.c so they can be customized for
xm vs xl config.  An unfortunate fallout is reordering of entries
in the test config files.
2015-04-16 16:11:01 -06:00
Jim Fehlig
a9b0d647bc xenconfig: remove redunant parsing of device_model
device_model is parsed in xenParseOS(), then later in
xenParseConfigCommon().  <emulator> is not part of <os>,
so makes sense to remove the parsing in xenParseOS().
2015-04-16 16:11:01 -06:00
Jim Fehlig
8680a19bc8 xenconfig: export xenConfigCopyString
Export xenConfigCopyString for use outside of xen_common.c

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-04-16 16:11:01 -06:00
Erik Skultety
b77ce18a28 virBitmap: Place virBitmapIsAllClear check after virBitmapParse calls
This patch adds checks for empty bitmaps right after the calls of
virBitmapParse. These only include spots where set API's are called and
where domain's XML is parsed.
Also, it partially reverts commit 983f5a which added a check for
invalid nodeset "0,^0" into virBitmapParse function. This change broke
the logic, as an empty bitmap should not cause an error.

https://bugzilla.redhat.com/show_bug.cgi?id=1210545
2015-04-13 14:21:02 +02:00
Martin Kletzander
0e7457e501 Fix common misspellings
Wikipedia's list of common misspellings [1] has a machine-readable
version.  This patch fixes those misspellings mentioned in the list
which don't have multiple right variants (as e.g. "accension", which can
be both "accession" and "ascension"), such misspellings are left
untouched.  The list of changes was manually re-checked for false
positives.

[1] https://en.wikipedia.org/wiki/Wikipedia:Lists_of_common_misspellings/For_machines

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-03-23 09:01:30 +01:00
Peter Krempa
4f9907cd11 conf: Replace access to def->mem.max_balloon with accessor functions
As there are two possible approaches to define a domain's memory size -
one used with legacy, non-NUMA VMs configured in the <memory> element
and per-node based approach on NUMA machines - the user needs to make
sure that both are specified correctly in the NUMA case.

To avoid this burden on the user I'd like to replace the NUMA case with
automatic totaling of the memory size. To achieve this I need to replace
direct access to the virDomainMemtune's 'max_balloon' field with
two separate getters depending on the desired size.

The two sizes are needed as:
1) Startup memory size doesn't include memory modules in some
hypervisors.
2) After startup these count as the usable memory size.

Note that the comments for the functions are future aware and document
state that will be present after a few later patches.
2015-03-16 14:26:51 +01:00
Marek Marczykowski-Górecki
cd5dc3031f xenconfig: add support for multiple USB devices syntax
In Xen>=4.3, libxl supports new syntax for USB devices:
usbdevice=[ "DEVICE", "DEVICE", ... ]
Add support for that in xenconfig driver. When only one device is
defined, keep using old syntax for backward compatibility.

Adjust tests for changed options order.

Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
2015-03-13 12:00:49 -06:00
Peter Krempa
c03411199e conf: Allocate domain definition with the new helper
Use the virDomainDefNew() helper to allocate the definition instead of
doing it via VIR_ALLOC.
2015-02-20 17:43:05 +01:00
Jim Fehlig
4689cdf779 Introduce support for parsing/formatting Xen xl config format
Introduce a parser/formatter for the xl config format.  Since the
deprecation of xm/xend, the VM config file format has diverged as
new features are added to libxl.  This patch adds support for parsing
and formating the xl config format.  It supports the existing xm config
format, plus adds support for spice graphics and xl disk config syntax.

Disk config is specified a bit differently in xl as compared to xm.  In
xl, disk config consists of comma-separated positional parameters and
keyword/value pairs separated by commas. Positional parameters are
specified as follows

   target, format, vdev, access

Supported keys for key=value options are

  devtype, backendtype

The positional paramters can also be specified in key/value form.  For
example the following xl disk config are equivalent

    /dev/vg/guest-volume,,hda
    /dev/vg/guest-volume,raw,hda,rw
    format=raw, vdev=hda, access=rw, target=/dev/vg/guest-volume

See $xen_sources/docs/misc/xl-disk-configuration.txt for more details.

xl disk config is parsed with the help of xlu_disk_parse() from
libxlutil, libxl's utility library.  Although the library exists
in all Xen versions supported by the libxl virt driver, only
recently has the corresponding header file been included.  A check
for the header is done in configure.ac.  If not found, xlu_disk_parse()
is declared externally.

Signed-off-by: Kiarie Kahurani <davidkiarie4@gmail.com>
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-01-14 08:28:50 -07:00
Jim Fehlig
f7a30375bd Revert "src/xenconfig: Xen-xl parser"
This reverts commit 2c78051a14.

Conflicts:
	src/Makefile.am

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-01-12 10:15:13 -07:00
Cédric Bosdonnat
e85df0901d Report error if a driver can't handle multiple IP addresses
Drivers supporting one and only one IP address raise an error if more IP
addresses are configured.
2015-01-05 20:24:18 +01:00
Cédric Bosdonnat
aa2cc72100 Domain conf: allow more than one IP address for net devices
Add the possibility to have more than one IP address configured for a
domain network interface. IP addresses can also have a prefix to define
the corresponding netmask.
2015-01-05 20:24:04 +01:00
Chunyan Liu
90ed3bd0aa xenconfig: set HVM pae/apic/acpi/ default to 1
According to xm.config manual, HVM pae|apic|acpi feature default
is 1 (enabled). But in conversion from xm config to libvirt xml,
if xm config doesn't contain pae|apic|acpi, it sets default value
to 0, this causes some problems in HVM guest.

Update parser codes to set HVM pae|apic|acpi default value to 1
to match xm config convension.

Signed-off-by: Chunyan Liu <cyliu@suse.com>
2015-01-04 11:09:34 -07:00
Kiarie Kahurani
2c78051a14 src/xenconfig: Xen-xl parser
Introduce a Xen xl parser

This parser allows for users to convert the new xl disk format and
spice graphics config to libvirt xml format and vice versa. Regarding
the spice graphics config, the code is pretty much straight forward.
For the disk {formating, parsing}, this parser takes care of the new
xl format which include positional parameters and key/value parameters.
In xl format disk config a <diskspec> consists of parameters separated by
commas. If the parameters do not contain an '=' they are automatically
assigned to certain options following the order below

   target, format, vdev, access

The above are the only mandatory parameters in the <diskspec> but there
are many more disk config options. These options can be specified as
key=value pairs. This takes care of the rest of the options such as

  devtype, backend, backendtype, script, direct-io-safe,

The positional paramters can also be specified in key/value form
for example

    /dev/vg/guest-volume,,hda
    /dev/vg/guest-volume,raw,hda,rw
    format=raw, vdev=hda, access=rw, target=/dev/vg/guest-volume

are interpleted to one config.

In xm format, the above diskspec would be written as

phy:/dev/vg/guest-volume,hda,w

The disk parser is based on the same parser used successfully by
the Xen project for several years now.  Ian Jackson authored the
scanner, which is used by this commit with mimimal changes.  Only
the PREFIX option is changed, to produce function and file names
more consistent with libvirt's convention.

Signed-off-by: Kiarie Kahurani <davidkiarie4@gmail.com>
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-01-03 22:41:07 -07:00
Kiarie Kahurani
7ad117b2e3 src/xenconfig: Export helper functions
Export helper functions for reuse in getting values
from a virConfPtr object

Signed-off-by: Kiarie Kahurani <davidkiarie4@gmail.com>
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-01-03 21:57:33 -07:00