If there are no references remaining to the object, vm is set to NULL
and vm->persistent cannot be accessed. Fixed by this trivial patch.
* src/qemu/qemu_driver.c (qemudDomainCoreDump): Avoid possible
NULL pointer dereference on --crash dump.
This is trivial for QEMU since you just have to not stop the vm before
starting the dump. And for Xen, you just pass the flag down to xend.
* include/libvirt/libvirt.h.in (virDomainCoreDumpFlags): Add VIR_DUMP_LIVE.
* src/qemu/qemu_driver.c (qemudDomainCoreDump): Support live dumping.
* src/xen/xend_internal.c (xenDaemonDomainCoreDump): Support live dumping.
* tools/virsh.c (opts_dump): Add --live. (cmdDump): Map it to VIR_DUMP_LIVE.
This patch adds the --crash option (already present in "xm dump-core")
to "virsh dump". virDomainCoreDump already has a flags argument, so
the API/ABI is untouched.
* include/libvirt/libvirt.h.in (virDomainCoreDumpFlags): New flag for
CoreDump
* src/test/test_driver.c (testDomainCoreDump): Do not crash
after dump unless VIR_DUMP_CRASH is given.
* src/qemu/qemu_driver.c (qemudDomainCoreDump): Shutdown the domain
instead of restarting it if --crash is passed.
* src/xen/xend_internal.c (xenDaemonDomainCoreDump): Support --crash.
* tools/virsh.c (opts_dump): Add --crash.
(cmdDump): Map it to flags for virDomainCoreDump and pass them.
1) qemuMigrateToCommand uses ">>" so we have to truncate the file
before starting the migration;
2) the command wasn't updated to chown the driver and set/restore
the security lavels;
3) the VM does not have to be resumed if migration fails;
4) the file is not removed when migration fails.
* src/qemu/qemu_driver.c (qemuDomainCoreDump): Truncate file before
dumping, set/restore ownership and security labels for the file.
This patch fixes the bug where paused/running state is not
transmitted during migration. As a result, in the QEMU driver
for example the machine was always started on the destination
end.
In order to do so, just read the state and if it is appropriate and
set the VIR_MIGRATE_PAUSED flag.
* src/libvirt.c (virDomainMigrateVersion1, virDomainMigrateVersion2):
Automatically add VIR_MIGRATE_PAUSED when appropriate.
* src/xen/xend_internal.c (xenDaemonDomainMigratePerform): Give a nicer
error message when migration of paused domains is attempted.
This adds a new flag, VIR_MIGRATE_PAUSED, that mandates pausing
the migrated VM before starting it.
* include/libvirt/libvirt.h.in (virDomainMigrateFlags): Add VIR_MIGRATE_PAUSED.
* src/qemu/qemu_driver.c (qemudDomainMigrateFinish2): Handle VIR_MIGRATE_PAUSED.
* tools/virsh.c (opts_migrate): Add --suspend. (cmdMigrate): Handle it.
* tools/virsh.pod (migrate): Document it.
This makes a small change on the failed-migration path. Up to now,
all VMs that failed non-live migration after the "stop" command
were restarted. This must not be done when the VM was paused in
the first place.
* src/qemu/qemu_driver.c (qemudDomainMigratePerform): Do not restart
a paused VM that fails migration. Set paused state after "stop",
reset it after failure.
* src/internal.h (ATTRIBUTE_SENTINEL): New, it's a ggc feature and
protected as such
* src/util/buf.c (virBufferStrcat): Use it.
* src/util/ebtables.c (ebtablesAddRemoveRule): Use it.
* src/util/iptables.c (iptableAddRemoveRule: Use it.
* src/util/qparams.h (new_qparam_set, append_qparams): Use it.
* docs/apibuild.py: avoid breaking the API generator with that new
internal keyword macro
This patch adds an optional attribute to the <bootp> tag, that
allows to specify a TFTP server address other than the address of
the DHCP server itself.
This can be used to forward the BOOTP settings of the host down to the
guest. This is something that configurations such as Xen's default
network achieve naturally, but must be done manually for NAT.
* docs/formatnetwork.html.in: Document new attribute.
* docs/schemas/network.rng: Add it to schema.
* src/conf/network_conf.h: Add it to struct.
* src/conf/network_conf.c: Add it to parser and pretty printer.
* src/network/bridge_driver.c: Put it in the dnsmasq command line.
* tests/networkxml2xmlin/netboot-proxy-network.xml
tests/networkxml2xmlout/netboot-proxy-network.xml
tests/networkxml2xmltest.c: add new tests
Fix migration, broken in two different ways by the QEMU monitor
abstraction. Note that the QEMU console emits a "\r\n" as the
line-ending.
* src/qemu/qemu_monitor_text.c (qemuMonitorGetMigrationStatus):
Fix "info migrate" command and its output's parsing.
Currently, libvirtd will start a dnsmasq process for the virtual
network, but (aside from killing the dnsmasq process and replacing it),
there's no way to define tftp boot options.
This change introduces the appropriate tags to the dhcp configuration:
<network>
<name>default</name>
<bridge name="virbr%d" />
<forward/>
<ip address="192.168.122.1" netmask="255.255.255.0">
<tftp root="/var/lib/tftproot" />
<dhcp>
<range start="192.168.122.2" end="192.168.122.254" />
<bootp file="pxeboot.img"/>
</dhcp>
</ip>
</network>
When the attributes are present, these are passed to the
arguments to dnsmasq:
dnsmasq [...] --enable-tftp --tftp-root /srv/tftp --dhcp-boot pxeboot.img
^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ ^^^^^^^^^^^^^^^^^^^^^^^
from <tftp /> from <bootp />
At present, only local tftp servers are supported (ie, dnsmasq runs as
the tftp server), but we could improve this in future by adding a
server= attribute.
Signed-off-by: Jeremy Kerr <jk@ozlabs.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
2009-09-21 Paolo Bonzini <pbonzini@redhat.com>
Jeremy Kerr <jk@ozlabs.org>
* docs/formatnetwork.html.in: Document new tags.
* docs/formatnetwork.html: Regenerate.
* docs/schemas/network.rng: Update.
* src/network_conf.c (virNetworkDefFree): Free new fields.
(virNetworkDHCPRangeDefParseXML): Parse <bootp>.
(virNetworkIPParseXML): New, parsing <dhcp> and <tftp>.
(virNetworkDefParseXML): Use virNetworkIPParseXML instead of
virNetworkDHCPRangeDefParseXML.
(virNetworkDefFormat): Pretty print new fields.
* src/network_conf.h (struct _virNetworkDef): Add netboot fields.
* src/network_driver.c (networkBuildDnsmasqArgv): Add
TFTP and BOOTP arguments.
* tests/Makefile.am (EXTRA_DIST): Add networkschemadata.
* tests/networkschematest: Look in networkschemadata.
* tests/networkschemadata/netboot-network.xml: New.
* src/virsh.c: adds cd and pwd commands to virsh useful for save and
restore commands
* docs/virsh.pod virsh.1: update the documentation
* AUTHORS: add Paolo Bonzini
Paolo Bonzini