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dc2b2b3ab9
libvirt/src/qemu
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Jiri Denemark dc2b2b3ab9 qemu: Enable migration events only for fresh QEMU process 
Every running QEMU process we are willing to reconnect (i.e., at least
3.1.0) supports migration events and we can assume the capability is
already enabled since last time libvirt daemon connected to its monitor.

Well, it's not guaranteed though. If libvirt 1.2.17 or older was used to
start QEMU 3.1.0 or newer, migration events would not be enabled. And if
the user decides to upgrade libvirt from 1.2.17 to 8.4.0 while the QEMU
process is still running, they would not be able to migrate the domain
because of disabled migration events. I think we do not really need to
worry about this scenario as libvirt 1.2.17 is 7 years old while QEMU
3.1.0 was released only 3.5 years ago. Thus a chance someone would be
running such configuration should be fairly small and a combination with
upgrading 1.2.17 to 8.4.0 (or newer) with running domains should get it
pretty much to zero. The issue would disappear ff the ancient libvirt is
first upgraded to something older than 8.4.0 and then to the current
libvirt.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2022-05-12 16:25:57 +02:00
..
EVENTHANDLERS.txt
libvirt_qemu_probes.d
libvirtd_qemu.aug qemu: conf: Add 'deprecation_behavior' setting to qemu.conf 2021-04-06 17:07:05 +02:00
meson.build qemu: Use real defaults for user and group in qemu.conf 2022-04-01 15:32:48 +02:00
MIGRATION.txt move jobs enums QEMU_X into hypervisor as VIR_X 2022-03-25 13:40:56 +01:00
postcopy-migration.sysctl qemu: Ignore missing vm.unprivileged_userfaultfd sysctl 2022-02-09 13:03:33 +01:00
qemu_agent.c qemu_agent: Use automatic mutex management 2022-04-05 15:59:08 +02:00
qemu_agent.h qemu_agent: Drop destroy callback 2021-11-12 14:11:43 +01:00
qemu_alias.c qemu_alias: change return type to void if possible 2021-11-25 09:19:59 +01:00
qemu_alias.h qemu_alias: change return type to void if possible 2021-11-25 09:19:59 +01:00
qemu_backup.c qemu: move macros QEMU_X into hypervisor as VIR_X 2022-03-25 13:41:01 +01:00
qemu_backup.h qemu: use generalized virDomainJobData instead of qemuDomainJobInfo 2022-02-15 12:20:45 +01:00
qemu_block.c qemuBlockStorageSourceGetRBDProps: Simplify handling of encryption format 2022-04-25 16:34:59 +02:00
qemu_block.h move jobs enums QEMU_X into hypervisor as VIR_X 2022-03-25 13:40:56 +01:00
qemu_blockjob.c move jobs enums QEMU_X into hypervisor as VIR_X 2022-03-25 13:40:56 +01:00
qemu_blockjob.h lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
qemu_capabilities.c qemu: Drop QEMU_CAPS_MIGRATION_EVENT 2022-05-12 16:25:57 +02:00
qemu_capabilities.h qemu: Drop QEMU_CAPS_MIGRATION_EVENT 2022-05-12 16:25:57 +02:00
qemu_capspriv.h qemu: Invalidate capabilities cache on host cpuid mismatch 2021-11-05 17:12:25 +01:00
qemu_cgroup.c qemu_cgroup: Don't deny devices from cgroupDeviceACL 2022-03-16 13:22:17 +01:00
qemu_cgroup.h qemu, hypervisor: refactor some cgroup mgmt methods 2022-01-28 17:04:50 +01:00
qemu_checkpoint.c move jobs enums QEMU_X into hypervisor as VIR_X 2022-03-25 13:40:56 +01:00
qemu_checkpoint.h lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
qemu_command.c qemu: add support for qemu-vdagent channel 2022-05-10 11:00:16 -05:00
qemu_command.h qemu: Always assume QEMU_CAPS_STORAGE_WERROR 2022-04-04 12:26:59 +02:00
qemu_conf.c qemu_conf: Use automatic memory management 2022-03-17 17:16:23 +01:00
qemu_conf.h qemu: remove sharedDevices hash table 2022-01-19 13:57:59 +01:00
qemu_dbus.c lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
qemu_dbus.h lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
qemu_domain_address.c qemu: Assign PCI address to virtio-iommu 2022-04-01 19:30:59 +02:00
qemu_domain_address.h qemuDomainEnsurePCIAddress: Don't pass virQEMUDriver explicitly 2021-11-19 12:38:34 +01:00
qemu_domain.c qemu_domain: Drop needless 'error' label in qemuDomainObjPrivateXMLParse() 2022-05-12 08:51:18 +02:00
qemu_domain.h conf: Move virDomainObj::originalMemlock into qemuDomainObjPrivate 2022-05-12 08:49:30 +02:00
qemu_domainjob.c qemu: fix one more race on undefining and create 2022-04-13 17:48:46 +03:00
qemu_domainjob.h qemu: Rename virDomainAsyncJobPhase{From,To}String 2022-04-01 12:33:03 +02:00
qemu_driver.c qemu: Refactor qemuDomainGetJobInfoMigrationStats 2022-05-12 16:25:57 +02:00
qemu_driver.h
qemu_extdevice.c qemu: Revert "qemuExtDevicesStart: pass logManager" 2021-10-12 14:12:11 +02:00
qemu_extdevice.h qemu: Revert "qemuExtDevicesStart: pass logManager" 2021-10-12 14:12:11 +02:00
qemu_fd.c qemu: Introduce helper functions for passing FDs to qemu 2022-02-14 13:13:59 +01:00
qemu_fd.h qemu: Introduce helper functions for passing FDs to qemu 2022-02-14 13:13:59 +01:00
qemu_firmware.c qemu: support firmware descriptor flash 'mode' for optional NVRAM 2022-02-23 18:11:08 +00:00
qemu_firmware.h lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
qemu_hostdev.c conf: Convert virDomainHostdevDefParseXMLSubsys() to virXMLProp*() 2022-01-21 16:42:14 +01:00
qemu_hostdev.h lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
qemu_hotplug.c qemu: Always assume QEMU_CAPS_STORAGE_WERROR 2022-04-04 12:26:59 +02:00
qemu_hotplug.h move jobs enums QEMU_X into hypervisor as VIR_X 2022-03-25 13:40:56 +01:00
qemu_interface.c lib: Use virReportSystemError() more 2022-04-07 12:11:22 +02:00
qemu_interface.h lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
qemu_interop_config.c meson: Introduce qemu_datadir option 2021-11-18 15:48:59 +01:00
qemu_interop_config.h
qemu_migration_cookie.c qemu: use qemuDomainSaveStatus() and remove qemuDomainObjSaveStatus() 2022-03-18 13:15:02 +01:00
qemu_migration_cookie.h qemu: use generalized virDomainJobData instead of qemuDomainJobInfo 2022-02-15 12:20:45 +01:00
qemu_migration_params.c qemu: Enable migration events only for fresh QEMU process 2022-05-12 16:25:57 +02:00
qemu_migration_params.h qemu: Enable migration events only for fresh QEMU process 2022-05-12 16:25:57 +02:00
qemu_migration_paramspriv.h lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
qemu_migration.c qemu: Drop QEMU_CAPS_MIGRATION_EVENT 2022-05-12 16:25:57 +02:00
qemu_migration.h move jobs enums QEMU_X into hypervisor as VIR_X 2022-03-25 13:40:56 +01:00
qemu_monitor_json.c qemu: add support for qemu-vdagent channel 2022-05-10 11:00:16 -05:00
qemu_monitor_json.h qemu: Implement qemuDomainQemuMonitorCommandWithFiles 2022-03-01 13:29:49 +01:00
qemu_monitor_priv.h qemuhotplugmock: Mock fd passing to qemu via 'SCM_RIGHTS' 2022-02-15 09:32:23 +01:00
qemu_monitor_text.c qemu: Implement qemuDomainQemuMonitorCommandWithFiles 2022-03-01 13:29:49 +01:00
qemu_monitor_text.h qemu_monitor: remove unused load snapshot code 2021-11-23 16:03:07 +01:00
qemu_monitor.c qemu: Implement qemuDomainQemuMonitorCommandWithFiles 2022-03-01 13:29:49 +01:00
qemu_monitor.h qemu: Implement qemuDomainQemuMonitorCommandWithFiles 2022-03-01 13:29:49 +01:00
qemu_namespace.c qemu_namespace: Be less aggressive in removing /dev nodes from namespace 2022-03-15 17:03:07 +01:00
qemu_namespace.h qemu: Do not erase duplicate devices from namespace if error occurs 2021-07-15 12:00:24 +02:00
qemu_process.c qemu: Enable migration events only for fresh QEMU process 2022-05-12 16:25:57 +02:00
qemu_process.h qemu: Simplify qemuProcessIncomingDef 2022-04-08 10:27:02 +02:00
qemu_processpriv.h qemu_processpriv: Fix #error message 2022-04-20 14:55:00 +02:00
qemu_qapi.c virQEMUQAPISchemaTraverseEnum: Allow query of enume type features 2021-11-01 17:37:15 +01:00
qemu_qapi.h lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
qemu_saveimage.c move jobs enums QEMU_X into hypervisor as VIR_X 2022-03-25 13:40:56 +01:00
qemu_saveimage.h move jobs enums QEMU_X into hypervisor as VIR_X 2022-03-25 13:40:56 +01:00
qemu_security.c qemu_security: Drop qemuSecurityStartVhostUserGPU() 2022-05-09 16:17:00 +02:00
qemu_security.h qemu_security: Drop qemuSecurityStartVhostUserGPU() 2022-05-09 16:17:00 +02:00
qemu_shim.c virt-qemu-run: Improve usage information 2021-12-10 18:39:35 +01:00
qemu_slirp.c lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
qemu_slirp.h lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
qemu_snapshot.c qemu: move macros QEMU_X into hypervisor as VIR_X 2022-03-25 13:41:01 +01:00
qemu_snapshot.h move jobs enums QEMU_X into hypervisor as VIR_X 2022-03-25 13:40:56 +01:00
qemu_tpm.c qemu_tpm: Do async IO when starting swtpm emulator 2022-03-28 10:00:18 +02:00
qemu_tpm.h lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
qemu_validate.c qemu: Disable spice-related devices without spice graphics 2022-05-12 10:20:37 +02:00
qemu_validate.h qemu: Reject 'rename-restart' action for 'on_reboot'/'on_poweroff'/'on_crash' 2021-08-25 15:32:44 +02:00
qemu_vhost_user_gpu.c qemu_security: Drop qemuSecurityStartVhostUserGPU() 2022-05-09 16:17:00 +02:00
qemu_vhost_user_gpu.h lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
qemu_vhost_user.c qemu_vhost_user: don't raise error for unknown features 2021-07-26 10:01:59 -04:00
qemu_vhost_user.h lib: Drop internal virXXXPtr typedefs 2021-04-13 17:00:38 +02:00
qemu_virtiofs.c qemu: virtiofs: check whether the supplied binary exists 2022-02-03 14:15:04 +01:00
qemu_virtiofs.h qemu: virtiofs: open a separate connection to virtlogd 2021-10-12 14:12:11 +02:00
qemu.conf.in qemu: Use real defaults for user and group in qemu.conf 2022-04-01 15:32:48 +02:00
test_libvirtd_qemu.aug.in qemu: Use real defaults for user and group in qemu.conf 2022-04-01 15:32:48 +02:00
THREADS.txt move jobs enums QEMU_X into hypervisor as VIR_X 2022-03-25 13:40:56 +01:00
virtqemud.init.in
virtqemud.service.in systemd: Use correct man page name in modular daemon service files 2022-02-01 13:20:11 +01:00