Commit Graph

1269 Commits

Author SHA1 Message Date
Claudio Bley
9170ba151d apibuild.py: fix TypeError raised in except clause
When an exception happened inside the try clause in serialize_function,
a new exception was raised in the except clause subsequently:

Traceback (most recent call last):
  File "./apibuild.py", line 2529, in <module>
    rebuild("libvirt")
  File "./apibuild.py", line 2513, in rebuild
    builder.serialize()
  File "./apibuild.py", line 2467, in serialize
    self.serialize_function(output, function)
  File "./apibuild.py", line 2208, in serialize_function
    self.warning("Failed to save function %s info: " % name, `id.info`)
TypeError: warning() takes exactly 2 arguments (3 given)

Use the correct number of arguments for self.warning and print the
original exception to stderr.
2013-01-31 08:20:33 +01:00
Martin Kletzander
533cfb4675 Sync HACKING and hacking.html.in
After one last-minute change, only HACKING was updated and not
hacking.html.in, so this patch synchronizes that.
2013-01-30 11:01:31 +01:00
Daniel Veillard
4a824cdbc4 Release of libvirt-1.0.2
* configure.ac docs/news.html.in libvirt.spec.in: update for the release
* po/*.po*: updated localizations
2013-01-30 10:42:05 +01:00
Martin Kletzander
901f4b6b86 docs: aesthetical cleanups
Adding dots inside "exempli gratia" where missing.  While on that, I
took the liberty of changing it where found with simple grep.
2013-01-30 09:37:03 +01:00
Claudio Bley
790d364ca2 docs: fix missed documentation for virterror functions
Commit f24404a324 renamed virterror.c to
virerror.c but forgot to change the reference in this file.
2013-01-30 07:53:14 +01:00
Osier Yang
38dd53e5ca rng: Change the datatype for volume name for common use
The "volName" will be used by later patch.
2013-01-28 11:52:54 +08:00
Osier Yang
c9d9cc5eae eng: Remove the duplicate definition
The RE for data type "name" storagepool.rng uses is same with
"genericName" in basictypes.rng.
2013-01-28 11:52:51 +08:00
Josh Durgin
c1509ab47e qemu: escape ipv6 for rbd network disk hosts
Hosts for rbd are ceph monitor daemons. These have fixed IP addresses,
so they are often referenced by IP rather than hostname for
convenience, or to avoid relying on DNS. Using IPv4 addresses as the
host name works already, but IPv6 addresses require rbd-specific
escaping because the colon is used as an option separator in the
string passed to qemu.

Escape these colons, and enclose the IPv6 address in square brackets
so it is distinguished from the port, which is currently mandatory.

Acked-by: Osier Yang <jyang@redhat.com>
Signed-off-by: Josh Durgin <josh.durgin@inktank.com>
2013-01-25 11:48:24 +08:00
Peter Krempa
828820e2d3 schemas: Add schemas for more CPU topology information in the caps XML
This patch adds RNG schemas for adding more information in the topology
output of the NUMA section in the capabilities XML.

The added elements are designed to provide more information about the
placement and topology of the processors in the system to management
applications.

A demonstration of supported XML added by this patch:
<capabilities>
  <host>
    <topology>
      <cells num='3'>
        <cell id='0'>
          <cpus num='4'> <!-- this is node with Hyperthreading -->
            <cpu id='0' socket_id='0' core_id='0' siblings='0-1'/>
            <cpu id='1' socket_id='0' core_id='0' siblings='0-1'/>
            <cpu id='2' socket_id='0' core_id='1' siblings='2-3'/>
            <cpu id='3' socket_id='0' core_id='1' siblings='2-3'/>
          </cpus>
        </cell>
        <cell id='1'>
          <cpus num='4'> <!-- this is node with modules (Bulldozer) -->
            <cpu id='4' socket_id='0' core_id='2' siblings='4-5'/>
            <cpu id='5' socket_id='0' core_id='3' siblings='4-5'/>
            <cpu id='6' socket_id='0' core_id='4' siblings='6-7'/>
            <cpu id='7' socket_id='0' core_id='5' siblings='6-7'/>
          </cpus>
         </cell>
        <cell id='2'>
          <cpus num='4'> <!-- this is a normal multi-core node -->
            <cpu id='8' socket_id='1' core_id='0' siblings='8'/>
            <cpu id='9' socket_id='1' core_id='1' siblings='9'/>
            <cpu id='10' socket_id='1' core_id='2' siblings='10'/>
            <cpu id='11' socket_id='1' core_id='3' siblings='11'/>
          </cpus>
         </cell>
      </cells>
    </topology>
  </host>
</capabilities>

The socket_id field represents identification of the physical socket the
CPU is plugged in. This ID may not be identical to the physical socket
ID reported by the kernel.

The core_id identifies a core within a socket. Also this field may not
accurately represent physical ID's.

The core_id is guaranteed to be unique within a cell and a socket. There
may be duplicates between sockets. Only cores sharing core_id within one
cell and one socket can be considered as threads. Cores sharing core_id
within sparate cells are distinct cores.

The siblings field is a list of CPU id's the cpu id's the CPU is sibling
with - thus a thread. The list is in the cpuset format.
2013-01-24 10:53:00 +01:00
Peter Krempa
14940b5eaa schema: Make the cpuset type reusable across schema files 2013-01-24 10:53:00 +01:00
Osier Yang
3f46ce78fc rng: Have colorful *.rng with editor
Just add the head line to let the editor know it's XML document.
2013-01-23 23:03:17 +08:00
Alon Levy
55bfd020d8 qemu: Support ram bar size for qxl devices
Adds a "ram" attribute globally to the video.model element, that changes
the resulting qemu command line only if video.type == "qxl".

<video>
  <model type='qxl' ram='65536' vram='65536' heads='1'/>
</video>

That attribute gets a default value of 64*1024. The schema is unchanged
for other video element types.

The resulting qemu command line change is the addition of

-global qxl-vga.ram_size=<ram>*1024

or

-global qxl.ram_size=<ram>*1024

For the main and secondary qxl devices respectively.

The default for the qxl ram bar is 64*1024 kilobytes (the same as the
default qxl vram bar size).
2013-01-22 10:40:45 -07:00
Jiri Denemark
1640fafc6a docs: Generate documentation for virTypedParams* APIs 2013-01-21 18:41:26 +01:00
Jiri Denemark
c72e327456 docs: event.c source file was renamed as virevent.c 2013-01-21 18:40:28 +01:00
Viktor Mihajlovski
8691551070 build: Fix RPM build errors related to libvirt-lxc API
Added missing entries to makefile and spec.

Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
2013-01-18 09:48:17 -07:00
Claudio Bley
25feed14db docs: Add some style and color to the HTML documentation
Signed-off-by: Claudio Bley <cbley@av-test.de>
2013-01-18 15:36:38 +01:00
Claudio Bley
cb022b6bc7 docs: don't use <i> and <tt> HTML tags
Use of <tt> is discouraged in HTML 4.x and has finally been obsoleted
in HTML 5. Likewise for the <i> tag.

Using tables for layout is (widely) considered bad style, too.

Use defintion lists, definition term and defintion description
elements instead.

Signed-off-by: Claudio Bley <cbley@av-test.de>
2013-01-18 15:36:38 +01:00
Claudio Bley
458dd20da9 docs: Assign classes to documentation elements
In CSS the following class names are available:

* keyword     (keywords like "typedef", "struct")
* type        (types like "int", "void*")
* comment     (comments after members of enums or structs)
* directive   (preprocessor directives, #define)
* undisclosed (text saying that the API is not public)

Additionally, kill all of the left-over "programlisting" class
assignments. There are no CSS rules for them.

Signed-off-by: Claudio Bley <cbley@av-test.de>
2013-01-18 15:36:38 +01:00
Daniel P. Berrange
3d1596b048 Introduce an LXC specific public API & library
This patch introduces support for LXC specific public APIs. In
common with what was done for QEMU, this creates a libvirt_lxc.so
library and libvirt/libvirt-lxc.h header file.

The actual APIs are

  int virDomainLxcOpenNamespace(virDomainPtr domain,
                                int **fdlist,
                                unsigned int flags);

  int virDomainLxcEnterNamespace(virDomainPtr domain,
                                 unsigned int nfdlist,
                                 int *fdlist,
                                 unsigned int *noldfdlist,
                                 int **oldfdlist,
                                 unsigned int flags);

which provide a way to use the setns() system call to move the
calling process into the container's namespace. It is not
practical to write in a generically applicable manner. The
nearest that we could get to such an API would be an API which
allows to pass a command + argv to be executed inside a
container. Even if we had such a generic API, this LXC specific
API is still useful, because it allows the caller to maintain
the current process context, in particular any I/O streams they
have open.

NB the virDomainLxcEnterNamespace() API is special in that it
runs client side, so does not involve the internal driver API.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-01-14 13:58:34 +00:00
Daniel P. Berrange
6f736c83e5 Convert HAVE_NUMACTL to WITH_NUMACTL
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2013-01-14 13:25:06 +00:00
Claudio Bley
bf1786b6d5 docs: restrict the set of characters for info keys
When parsing the top level comment of a file, apibuild.py used
to split on any ':' character of a line regarding the first part
as a key for a setting, e.g. "Summary". The second part would then
be assigned as the value for that key.

This means you could not use a ':' character inside those comments
without ill effects.

Now, a key must consist solely of alphanumeric characters, '_' or '.'.
2013-01-14 09:18:43 +01:00
Claudio Bley
833e1493ed docs: simplify code 2013-01-14 09:18:43 +01:00
Eric Blake
a2acdb3dd2 docs: mention git rename detection
I've noticed a number of people sending patches with file
renames not compressed, so we might as well document how to
set this up.  (Git won't do it by default, for back-compat
reasons)

* docs/hacking.html.in: Add git config tip.
* HACKING: Regenerate.
2013-01-11 10:30:49 -07:00
Eric Blake
ed4bbe6bc4 docs: add some more hacking tips
Based on a suggestion by John Ferlan:
https://www.redhat.com/archives/libvir-list/2013-January/msg00158.html

* docs/hacking.html.in: Add some commit message instructions.
Mention the ./run script.
* HACKING: Regenerate.
2013-01-11 10:30:49 -07:00
Laine Stump
7a4bf34b56 docs: fix typo in isa-serial additions
This was preventing make rpm from completing.
2013-01-10 14:26:11 -05:00
Guannan Ren
29d37818fb network: fix typos and docs 2013-01-10 21:46:22 +08:00
Guannan Ren
e3a04455fa qemu: add usb-serial support
Add an optional 'type' attribute to <target> element of serial port
device. There are two choices for its value, 'isa-serial' and
'usb-serial'. For backward compatibility, when attribute 'type' is
missing the 'isa-serial' will be chosen as before.

Libvirt XML sample

    <serial type='pty'>
      <target type='usb-serial' port='0'/>
      <address type='usb' bus='0' port='1'/>
    </serial>

qemu commandline:

qemu ${other_vm_args}              \
    -chardev pty,id=charserial0    \
    -device usb-serial,chardev=charserial0,id=serial0,bus=usb.0,port=1
2013-01-10 21:29:20 +08:00
Claudio Bley
3b54b2e345 docs: break longer text into paragraphs in HTML
Libvirt's HTML documentation is not as easy to the eyes as it could
be since long text has no visual breaks.

Take advantage of the formatting in documentation comments and wrap
each part separated by two consecutive \n into a HTML <p> element.
2013-01-09 08:01:28 +01:00
Claudio Bley
1e8b4b5810 docs: remove duplicate check in index.add 2013-01-08 11:45:47 +01:00
J.B. Joret
d760255d01 S390: Add SCLP console front end support
The SCLP console is the native console type for s390 and is preferred
over the virtio console as it doesn't require special drivers and
is more efficient. Recent versions of QEMU come with SCLP support
which is hereby enabled.

The new target types 'sclp' and 'sclplm' can be used to specify a
SCLP console. Adding documentation, domain schema and XML processing
support.

Signed-off-by: J.B. Joret <jb@linux.vnet.ibm.com>
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
2013-01-08 11:37:52 +01:00
Osier Yang
b9c57e7b0d docs: Add docs and rng schema for new XML tag sgio
This introduces new XML tag "sgio" for disk, its valid values
are "filtered" and "unfiltered", setting it as "filtered" will
set the disk's unpriv_sgio to 0, and "unfiltered" to set it
as 1, which allows the unprivileged SG_IO commands.
2013-01-07 21:37:24 +08:00
Daniel P. Berrange
f24404a324 Rename virterror.c virterror_internal.h to virerror.{c,h} 2012-12-21 11:19:50 +00:00
Jiri Denemark
4ed80c76c5 docs: Fix documentation for readonly element 2012-12-18 14:09:01 +01:00
Daniel P. Berrange
aae0fc2a92 Add support for <hostdev mode="capabilities">
The <hostdev> device type has long had a redundant "mode"
attribute, which has always been "subsys". This finally
introduces a new mode "capabilities", which will be used
by the LXC driver for device assignment. Since container
based virtualization uses a single kernel, the idea of
assigning physical PCI devices doesn't make sense. It is
still reasonable to assign USB devices, but for assigning
arbitrary nodes in /dev, the new 'capabilities' mode is
to be used.

The first capability support is 'storage', which is for
assignment of block devices. Functionally this is really
pretty similar to the <disk> support. The only difference
is the device node name is identical in both host and
container namespaces.

    <hostdev mode='capabilities' type='storage'>
      <source>
        <block>/dev/sdf1</block>
      </source>
    </hostdev>

The second capability support is 'misc', which is for
assignment of character devices. There is no existing
parallel to this. Again the device node is the same
inside & outside the container.

    <hostdev mode='capabilities' type='misc'>
      <source>
        <char>/dev/input/event3</char>
      </source>
    </hostdev>

The reason for keeping the char & storage devices
separate in the domain XML, is to mirror the split
in the node device XML. NB the node device XML does
not yet report character devices, but that's another
new patch to come

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2012-12-17 17:50:50 +00:00
Peter Krempa
c17b16d1be docs: Replace </br> with <br/> in docs/news.html.in 2012-12-17 11:02:23 +01:00
Guannan Ren
09938bb3b0 conf: add optional attribte primary to video <model> element
If there are multiple video devices
primary = 'yes' marks this video device as the primary one.
The rest are secondary video devices. No more than one could be
mark as primary. If none of them has primary attribute, the first
one will be the primary by default like what it was.
The reason of this changing is that for qemu, only one primary video
device is permitted which can be of any type. For secondary video
devices, only qxl is allowd. Primary attribute removes the restriction
that the first have to be the primary one.

We always put the primary video device into the first position of
video device structure array after parsing.
2012-12-17 14:01:20 +08:00
Daniel Veillard
34ca568497 Release of libvirt-1.0.1
- configure.ac docs/news.html.in: update for the release
- po/*.po: updated from transifex
2012-12-17 11:36:37 +08:00
Eric Blake
9821f8f6cf docs: fix some typos in examples
As detected in https://bugzilla.redhat.com/show_bug.cgi?id=887187

* docs/formatdomain.html.in: Fix XML typos.
2012-12-14 08:28:57 -07:00
Michał Łomnicki
c86f53d5b2 docs: Fix location of libvirt.conf and auth.conf
For a unprivileged user libvirt.conf and auth.conf are looked up in
$XDG_CONFIG_HOME but the docs incorrectly state that it's $XDG_CONFIG_DIR.
2012-12-14 13:35:03 +01:00
Jiri Denemark
748f6dd0c3 docs: Document offline migration 2012-12-11 20:46:31 +01:00
Michal Privoznik
ec6474b245 bandwidth: add new 'floor' attribute
This is however supported only on domain interfaces with
type='network'. Moreover, target network needs to have at least
inbound QoS set. This is required by hierarchical traffic shaping.

From now on, the required attribute for <inbound/> is either 'average'
(old) or 'floor' (new). This new attribute can be used just for
interfaces type of network (<interface type='network'/>) currently.
2012-12-11 18:35:12 +01:00
Gene Czarcinski
2d5cd1d724 network: add support for DHCPv6
The DHCPv6 support includes IPV6 dhcp-range and dhcp-host for one
IPv6 subnetwork on one interface.  This support will only work
if dnsmasq version >= 2.64; otherwise an error occurs if
dhcp-range or dhcp-host is specified for an IPv6 address.

Essentially, this change provides the same DHCP support for IPv6
that has been available for IPv4.

With dnsmasq >= 2.64, support for the RA service is also now provided
by dnsmasq (radvd is no longer used/started). (Although at least one
version of dnsmasq prior to 2.64 "supported" IPv6 Router
Advertisement, there were bugs (fixed in 2.64) that rendered it
unusable.)

Documentation and the network schema has been updated
to reflect the new support.
2012-12-11 05:49:45 -05:00
Osier Yang
b718ded39a qemu: Allow the user to specify vendor and product for disk
QEMU supports setting vendor and product strings for disk since
1.2.0 (only scsi-disk, scsi-hd, scsi-cd support it), this patch
exposes it with new XML elements <vendor> and <product> of disk
device.
2012-12-07 16:53:27 +08:00
Jim Fehlig
dfa1e1dd53 Convert libxl driver to Xen 4.2
Based on a patch originally authored by Daniel De Graaf

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

This patch converts the Xen libxl driver to support only Xen >= 4.2.
Support for Xen 4.1 libxl is dropped since that version of libxl is
designated 'technology preview' only and is incompatible with Xen 4.2
libxl.  Additionally, the default toolstack in Xen 4.1 is still xend,
for which libvirt has a stable, functional driver.
2012-12-06 16:15:54 -07:00
Gene Czarcinski
705e67d40b network: allow guest to guest IPv6 without gateway definition
This patch adds the capability for virtual guests to do IPv6
communication via a virtual network interface with no IPv6 (gateway)
addresses specified.  This capability has always been enabled by
default for IPv4, but disabled for IPv6 for security concerns, and
because it requires the ip6tables command to be operational (which
isn't the case on a system with the ipv6 module completely disabled).

This patch adds a new attribute "ipv6" at the toplevel of a <network>
object.  If ipv6='yes', the extra ip6tables rules required to permite
inter-guest communications are added when the network is started. If
it is 'no', or not present, those rules will not be added; thus the
default behavior doesn't change, so there should be no compatibility
issues with any existing installations.

Note that virtual guests cannot communication with the virtualization
host via this interface, because the following kernel tunable has
been set:

   net.ipv6.conf.<bridge_interface_name>.disable_ipv6 = 1

This assures that the bridge interface will not have an IPv6
link-local (fe80::) address.

To control this behavior so that it is not enabled by default, the parameter
ipv6='yes' on the <network> statement has been added.

Documentation related to this patch has been updated.
The network schema has also been updated.
2012-12-05 14:58:32 -05:00
Harsh Prateek Bora
a2d2b80fbd Add Gluster protocol as supported network disk backend
This patch introduces the RNG schema and updates necessary data strucutures
to allow various hypervisors to make use of Gluster protocol as one of the
supported network disk backend. Next patch will add support to make use of
this feature in Qemu since it now supports Gluster protocol as one of the
network based storage backend.

Two new optional attributes for <host> element are introduced - 'transport'
and 'socket'. Valid transport values are tcp, unix or rdma. If none specified,
tcp is assumed. If transport is unix, socket specifies path to unix socket.

This patch allows users to specify disks on gluster backends like this:

    <disk type='network' device='disk'>
      <driver name='qemu' type='raw'/>
      <source protocol='gluster' name='Volume1/image'>
        <host name='example.org' port='6000' transport='tcp'/>
      </source>
      <target dev='vda' bus='virtio'/>
    </disk>

    <disk type='network' device='disk'>
      <driver name='qemu' type='raw'/>
      <source protocol='gluster' name='Volume2/image'>
        <host transport='unix' socket='/path/to/sock'/>
      </source>
      <target dev='vdb' bus='virtio'/>
    </disk>

Signed-off-by: Harsh Prateek Bora <harsh@linux.vnet.ibm.com>
2012-11-27 10:19:22 +01:00
Ján Tomko
e628dbfbef docs: Fix a few spaces
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2012-11-21 18:22:37 +01:00
Ján Tomko
08c1435f05 docs: boot order for host and redirected USB devices 2012-11-21 18:21:51 +01:00
Ján Tomko
a4c19459aa qemu: add bootindex for usb-host and usb-redir devices
Allow bootindex to be specified for redirected USB devices and host USB
devices.

Bug: https://bugzilla.redhat.com/show_bug.cgi?id=805414
2012-11-14 19:03:18 -07:00
Eric Blake
4201a7ea1c snapshot: new XML for external system checkpoint
Each <domainsnapshot> can now contain an optional <memory>
element that describes how the VM state was handled, similar
to disk snapshots.  The new element will always appear in
output; for back-compat, an input that lacks the element will
assume 'no' or 'internal' according to the domain state.

Along with this change, it is now possible to pass <disks> in
the XML for an offline snapshot; this also needs to be wired up
in a future patch, to make it possible to choose internal vs.
external on a per-disk basis for each disk in an offline domain.
At that point, using the --disk-only flag for an offline domain
will be able to work.

For some examples below, remember that qemu supports the
following snapshot actions:

qemu-img: offline external and internal disk
savevm: online internal VM and disk
migrate: online external VM
transaction: online external disk

=====
<domainsnapshot>
  <memory snapshot='no'/>
  ...
</domainsnapshot>

implies that there is no VM state saved (mandatory for
offline and disk-only snapshots, not possible otherwise);
using qemu-img for offline domains and transaction for online.

=====
<domainsnapshot>
  <memory snapshot='internal'/>
  ...
</domainsnapshot>

state is saved inside one of the disks (as in qemu's 'savevm'
system checkpoint implementation).  If needed in the future,
we can also add an attribute pointing out _which_ disk saved
the internal state; maybe disk='vda'.

=====
<domainsnapshot>
  <memory snapshot='external' file='/path/to/state'/>
  ...
</domainsnapshot>

This is not wired up yet, but future patches will allow this to
control a combination of 'virsh save /path/to/state' plus disk
snapshots from the same point in time.

=====

So for 1.0.1 (and later, as needed), I plan to implement this table
of combinations, with '*' designating new code and '+' designating
existing code reached through new combinations of xml and/or the
existing DISK_ONLY flag:

domain  memory  disk   disk-only | result
-----------------------------------------
offline omit    omit   any       | memory=no disk=int, via qemu-img
offline no      omit   any       |+memory=no disk=int, via qemu-img
offline omit/no no     any       | invalid combination (nothing to snapshot)
offline omit/no int    any       |+memory=no disk=int, via qemu-img
offline omit/no ext    any       |*memory=no disk=ext, via qemu-img
offline int/ext any    any       | invalid combination (no memory to save)
online  omit    omit   off       | memory=int disk=int, via savevm
online  omit    omit   on        | memory=no disk=default, via transaction
online  omit    no/ext off       | unsupported for now
online  omit    no     on        | invalid combination (nothing to snapshot)
online  omit    ext    on        | memory=no disk=ext, via transaction
online  omit    int    off       |+memory=int disk=int, via savevm
online  omit    int    on        | unsupported for now
online  no      omit   any       |+memory=no disk=default, via transaction
online  no      no     any       | invalid combination (nothing to snapshot)
online  no      int    any       | unsupported for now
online  no      ext    any       |+memory=no disk=ext, via transaction
online  int/ext any    on        | invalid combination (disk-only vs. memory)
online  int     omit   off       |+memory=int disk=int, via savevm
online  int     no/ext off       | unsupported for now
online  int     int    off       |+memory=int disk=int, via savevm
online  ext     omit   off       |*memory=ext disk=default, via migrate+trans
online  ext     no     off       |+memory=ext disk=no, via migrate
online  ext     int    off       | unsupported for now
online  ext     ext    off       |*memory=ext disk=ext, via migrate+transaction

* docs/schemas/domainsnapshot.rng (memory): New RNG element.
* docs/formatsnapshot.html.in: Document it.
* src/conf/snapshot_conf.h (virDomainSnapshotDef): New fields.
* src/conf/domain_conf.c (virDomainSnapshotDefFree)
(virDomainSnapshotDefParseString, virDomainSnapshotDefFormat):
Manage new fields.
* tests/domainsnapshotxml2xmltest.c: New test.
* tests/domainsnapshotxml2xmlin/*.xml: Update existing tests.
* tests/domainsnapshotxml2xmlout/*.xml: Likewise.
2012-11-02 09:56:23 -06:00