Re: [PATCH 11/26] qemu: support automatic VM managed save in system daemon
On Wed, Jan 08, 2025 at 19:42:44 +0000, Daniel P. Berrangé wrote:
Currently automatic VM managed save is only performed in session
daemons, on desktop session close, or host OS shutdown request.
With this change it is possible to control shutdown behaviour for
all daemons. A recommended setup might be:
auto_shutdown_try_save = "persistent"
auto_shutdown_try_shutdown = "all"
auto_shutdown_poweroff = "all"
Each setting accepts 'none', 'persistent', 'transient', and
'all'
to control what types of guest it applies to.
For historical compatibility, for the system daemon, the settings
currently default to:
auto_shutdown_try_save = "none"
auto_shutdown_try_shutdown = "none"
auto_shutdown_poweroff = "none"
while for the session daemon they currently default to
auto_shutdown_try_save = "all"
auto_shutdown_try_shutdown = "none"
auto_shutdown_poweroff = "none"
The system daemon settings should NOT be enabled if the traditional
libvirt-guests.service is already enabled.
Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com>
---
src/qemu/libvirtd_qemu.aug | 3 ++
Proper review later, but for now this fails
'check-augeas-libvirtd_qemu':
Listing only the last 100 lines from a long log.
{ "migrate_tls_x509_verify" = "1" }
{ "migrate_tls_x509_secret_uuid" =
"00000000-0000-0000-0000-000000000000" }
{ "migrate_tls_force" = "0" }
{ "backup_tls_x509_cert_dir" = "/etc/pki/libvirt-backup" }
{ "backup_tls_x509_verify" = "1" }
{ "backup_tls_x509_secret_uuid" =
"00000000-0000-0000-0000-000000000000" }
{ "nographics_allow_host_audio" = "1" }
{ "remote_display_port_min" = "5900" }
{ "remote_display_port_max" = "65535" }
{ "remote_websocket_port_min" = "5700" }
{ "remote_websocket_port_max" = "65535" }
{ "security_driver" = "selinux" }
{ "security_default_confined" = "1" }
{ "security_require_confined" = "1" }
{ "user" = "qemu" }
{ "group" = "qemu" }
{ "dynamic_ownership" = "1" }
{ "remember_owner" = "1" }
{ "cgroup_controllers"
{ "1" = "cpu" }
{ "2" = "devices" }
{ "3" = "memory" }
{ "4" = "blkio" }
{ "5" = "cpuset" }
{ "6" = "cpuacct" }
}
{ "cgroup_device_acl"
{ "1" = "/dev/null" }
{ "2" = "/dev/full" }
{ "3" = "/dev/zero" }
{ "4" = "/dev/random" }
{ "5" = "/dev/urandom" }
{ "6" = "/dev/ptmx" }
{ "7" = "/dev/kvm" }
{ "8" = "/dev/userfaultfd" }
}
{ "save_image_format" = "raw" }
{ "dump_image_format" = "raw" }
{ "snapshot_image_format" = "raw" }
{ "auto_dump_path" = "/var/lib/libvirt/qemu/dump" }
{ "auto_dump_bypass_cache" = "0" }
{ "auto_start_bypass_cache" = "0" }
{ "auto_start_delay" = "0" }
{ "auto_shutdown_try_save" = "all" }
{ "auto_shutdown_try_shutdown" = "none" }
{ "auto_shutdown_powerdown" = "none" }
{ "hugetlbfs_mount" = "/dev/hugepages" }
{ "bridge_helper" = "qemu-bridge-helper" }
{ "set_process_name" = "1" }
{ "max_processes" = "0" }
{ "max_files" = "0" }
{ "max_threads_per_process" = "0" }
{ "max_core" = "unlimited" }
{ "dump_guest_core" = "1" }
{ "mac_filter" = "1" }
{ "relaxed_acs_check" = "1" }
{ "lock_manager" = "lockd" }
{ "max_queued" = "0" }
{ "keepalive_interval" = "5" }
{ "keepalive_count" = "5" }
{ "seccomp_sandbox" = "1" }
{ "migration_address" = "0.0.0.0" }
{ "migration_host" = "host.example.com" }
{ "migration_port_min" = "49152" }
{ "migration_port_max" = "49215" }
{ "log_timestamp" = "0" }
{ "nvram"
{ "1" =
"/usr/share/OVMF/OVMF_CODE.fd:/usr/share/OVMF/OVMF_VARS.fd" }
{ "2" =
"/usr/share/OVMF/OVMF_CODE.secboot.fd:/usr/share/OVMF/OVMF_VARS.fd" }
{ "3" =
"/usr/share/AAVMF/AAVMF_CODE.fd:/usr/share/AAVMF/AAVMF_VARS.fd" }
{ "4" =
"/usr/share/AAVMF/AAVMF32_CODE.fd:/usr/share/AAVMF/AAVMF32_VARS.fd" }
}
{ "stdio_handler" = "logd" }
{ "gluster_debug_level" = "9" }
{ "virtiofsd_debug" = "1" }
{ "namespaces"
{ "1" = "mount" }
}
{ "memory_backing_dir" = "/var/lib/libvirt/qemu/ram" }
{ "pr_helper" = "qemu-pr-helper" }
{ "slirp_helper" = "/usr/bin/slirp-helper" }
{ "dbus_daemon" = "dbus-daemon" }
{ "swtpm_user" = "tss" }
{ "swtpm_group" = "tss" }
{ "capability_filters"
{ "1" = "capname" }
}
{ "deprecation_behavior" = "none" }
{ "sched_core" = "none" }
{ "storage_use_nbdkit" = "0" }
{ "shared_filesystems"
{ "1" = "/path/to/images" }
{ "2" = "/path/to/nvram" }
{ "3" = "/path/to/swtpm" }
}
}
stderr:
Syntax error in lens definition
Failed to load /home/pipo/build/libvirt/gcc/src/test_libvirtd_qemu.aug