Eric Blake 3bef4adf73 qemu: nicer error message if live disk snapshot unsupported ...

Without this patch, attempts to create a disk snapshot when qemu
is too old results in a cryptic message:

virsh # snapshot-create 23 --disk-only
error: operation failed: Failed to take snapshot: unknown command: 'snapshot_blkdev'

Now it reports:

virsh # snapshot-create 23 --disk-only
error: unsupported configuration: live disk snapshot not supported with this QEMU binary

All versions of qemu that support live disk snapshot also support
QMP (basically upstream qemu 1.1 and later, and backports to RHEL 6.2).

* src/qemu/qemu_capabilities.h (QEMU_CAPS_DISK_SNAPSHOT): New
capability.
* src/qemu/qemu_capabilities.c (qemuCaps): Track it.
(qemuCapsProbeQMPCommands): Set it.
* src/qemu/qemu_driver.c (qemuDomainSnapshotCreateDiskActive): Use
it.
* src/qemu/qemu_monitor.c (qemuMonitorDiskSnapshot): Simplify.
* src/qemu/qemu_monitor_json.c (qemuMonitorJSONDiskSnapshot):
Likewise.
* src/qemu/qemu_monitor_text.h (qemuMonitorTextDiskSnapshot):
Delete.
* src/qemu/qemu_monitor_text.c (qemuMonitorTextDiskSnapshot):
Likewise.

2012-12-04 15:53:41 -07:00

..

libvirtd_qemu.aug

qemu: conf: add seccomp_sandbox option

2012-09-18 15:43:28 +08:00

MIGRATION.txt

qemu: Implement migration job phases

2011-07-27 08:45:09 -06:00

qemu_agent.c

qemu: Remove full stop from error messages

2012-11-29 14:16:48 +01:00

qemu_agent.h

qemu: Implement virDomainFSTrim

2012-11-28 16:15:01 +01:00

qemu_bridge_filter.c

Replace 'struct qemud_driver *' with virQEMUDriverPtr

2012-11-28 18:17:25 +00:00

qemu_bridge_filter.h

Replace 'struct qemud_driver *' with virQEMUDriverPtr

2012-11-28 18:17:25 +00:00

qemu_capabilities.c

qemu: nicer error message if live disk snapshot unsupported

2012-12-04 15:53:41 -07:00

qemu_capabilities.h

qemu: nicer error message if live disk snapshot unsupported

2012-12-04 15:53:41 -07:00

qemu_cgroup.c

Replace 'struct qemud_driver *' with virQEMUDriverPtr

2012-11-28 18:17:25 +00:00

qemu_cgroup.h

Replace 'struct qemud_driver *' with virQEMUDriverPtr

2012-11-28 18:17:25 +00:00

qemu_command.c

Replace 'struct qemud_driver *' with virQEMUDriverPtr

2012-11-28 18:17:25 +00:00

qemu_command.h

Replace 'struct qemud_driver *' with virQEMUDriverPtr

2012-11-28 18:17:25 +00:00

qemu_conf.c

qemu: Refactor error reporting in qemu driver configuration parser

2012-11-29 22:23:16 +01:00

qemu_conf.h

Replace polling for active VMs with signalling by drivers

2012-12-04 12:14:04 +00:00

qemu_domain.c

Rename misc QEMU structs/enums to use normal naming style

2012-11-28 18:17:31 +00:00

qemu_domain.h

Rename misc QEMU structs/enums to use normal naming style

2012-11-28 18:17:31 +00:00

qemu_driver.c

qemu: nicer error message if live disk snapshot unsupported

2012-12-04 15:53:41 -07:00

qemu_driver.h

maint: fix up copyright notice inconsistencies

2012-09-20 16:30:55 -06:00

qemu_hostdev.c

Replace 'struct qemud_driver *' with virQEMUDriverPtr

2012-11-28 18:17:25 +00:00

qemu_hostdev.h

Replace 'struct qemud_driver *' with virQEMUDriverPtr

2012-11-28 18:17:25 +00:00

qemu_hotplug.c

qemu: support live update of an interface's filter

2012-12-03 14:35:58 -05:00

qemu_hotplug.h

Replace 'struct qemud_driver *' with virQEMUDriverPtr

2012-11-28 18:17:25 +00:00

qemu_migration.c

Replace 'struct qemud_driver *' with virQEMUDriverPtr

2012-11-28 18:17:25 +00:00

qemu_migration.h

Replace 'struct qemud_driver *' with virQEMUDriverPtr

2012-11-28 18:17:25 +00:00

qemu_monitor_json.c

qemu: nicer error message if live disk snapshot unsupported

2012-12-04 15:53:41 -07:00

qemu_monitor_json.h

qemu: don't attempt undefined QMP commands

2012-11-30 09:51:09 -07:00

qemu_monitor_text.c

qemu: nicer error message if live disk snapshot unsupported

2012-12-04 15:53:41 -07:00

qemu_monitor_text.h

qemu: nicer error message if live disk snapshot unsupported

2012-12-04 15:53:41 -07:00

qemu_monitor.c

qemu: nicer error message if live disk snapshot unsupported

2012-12-04 15:53:41 -07:00

qemu_monitor.h

Make non-KVM machines work with QMP probing

2012-10-31 08:31:49 +01:00

qemu_process.c

Replace polling for active VMs with signalling by drivers

2012-12-04 12:14:04 +00:00

qemu_process.h

Replace 'struct qemud_driver *' with virQEMUDriverPtr

2012-11-28 18:17:25 +00:00

qemu.conf

doc: update description about user/group in qemu.conf

2012-10-09 08:38:36 -06:00

test_libvirtd_qemu.aug.in

Fix the augea test for qemu libvirtd options

2012-09-18 16:28:43 +08:00

THREADS.txt

qemu: fix crash when mixing sync and async monitor jobs

2011-08-01 09:41:57 -06:00