Lines Matching +full:- +full:- +full:-
8 the cpr-reboot and cpr-transfer modes are available.
18 cpr-reboot mode
19 ---------------
23 resumes by running QEMU with the ``-incoming`` option. Because the
38 ``guest-suspend-ram`` command to the QEMU guest agent. The agent
39 must be pre-installed in the guest, and the guest must support
48 memory, such as ``memory-backend-file,share=on``, and that the
49 ``x-ignore-shared`` capability be set. This combination allows memory
54 * Set the migration mode parameter to ``cpr-reboot``.
55 * Set the ``x-ignore-shared`` capability if desired.
63 * Start QEMU with the ``-incoming defer`` option.
64 * Set the migration mode parameter to ``cpr-reboot``.
65 * Set the ``x-ignore-shared`` capability if desired.
66 * Issue the ``migrate-incoming`` command.
74 # qemu-kvm -monitor stdio
75 -object memory-backend-file,id=ram0,size=4G,mem-path=/dev/dax0.0,align=2M,share=on -m 4G
80 (qemu) migrate_set_parameter mode cpr-reboot
81 (qemu) migrate_set_capability x-ignore-shared on
82 (qemu) migrate -d file:vm.state
92 # qemu-kvm ... -incoming defer
95 (qemu) migrate_set_parameter mode cpr-reboot
96 (qemu) migrate_set_capability x-ignore-shared on
105 # qemu-kvm -monitor stdio
106 -object memory-backend-file,id=ram0,size=4G,mem-path=/dev/dax0.0,align=2M,share=on -m 4G
107 -device vfio-pci, ...
108 -chardev socket,id=qga0,path=qga.sock,server=on,wait=off
109 -device virtserialport,chardev=qga0,name=org.qemu.guest_agent.0
115 # echo '{"execute":"guest-suspend-ram"}' | ncat --send-only -U qga.sock
119 (qemu) migrate_set_parameter mode cpr-reboot
120 (qemu) migrate_set_capability x-ignore-shared on
121 (qemu) migrate -d file:vm.state
131 # qemu-kvm ... -incoming defer
134 (qemu) migrate_set_parameter mode cpr-reboot
135 (qemu) migrate_set_capability x-ignore-shared on
146 cpr-reboot mode may not be used with postcopy, background-snapshot,
149 cpr-transfer mode
150 -----------------
158 The user starts new QEMU on the same host as old QEMU, with command-
159 line arguments to create the same machine, plus the ``-incoming``
161 In addition, the user adds a second -incoming option with channel
173 migrate-incoming command. It may only be specified on the command
181 The VM must be started with the ``-machine aux-ram-share=on``
183 a memory-backend object) to be allocated by mmap'ing a memfd.
187 * Set the migration mode parameter to ``cpr-transfer``.
192 * Start new QEMU with two ``-incoming`` options.
199 cpr-transfer mode may not be used with postcopy, background-snapshot,
202 memory-backend-epc is not supported.
209 When using ``-incoming defer``, you must issue the migrate command to
230 # qemu-kvm -qmp stdio
231 -object memory-backend-file,id=ram0,size=4G,
232 mem-path=/dev/shm/ram0,share=on -m 4G
233 -machine memory-backend=ram0
234 -machine aux-ram-share=on
236 # qemu-kvm -monitor stdio
237 -incoming tcp:0:44444
238 -incoming '{"channel-type": "cpr",
244 {"execute": "query-status"}
248 {"execute":"migrate-set-parameters",
249 "arguments":{"mode":"cpr-transfer"}}
252 {"channel-type": "main",
255 {"channel-type": "cpr",
263 {"execute": "query-status"}
270 This example uses ``-incoming defer`` to hot plug a device before
280 # qemu-kvm -monitor stdio
281 -object memory-backend-file,id=ram0,size=4G,
282 mem-path=/dev/shm/ram0,share=on -m 4G
283 -machine memory-backend=ram0
284 -machine aux-ram-share=on
286 # qemu-kvm -monitor stdio
287 -incoming defer
288 -incoming '{"channel-type": "cpr",
295 "arguments": {"driver": "pcie-root-port"}}
297 {"execute":"migrate-set-parameters",
298 "arguments":{"mode":"cpr-transfer"}}
301 {"channel-type": "main",
304 {"channel-type": "cpr",
311 (qemu) device_add pcie-root-port
316 {"execute": "query-status"}
323 cpr-transfer mode is based on a capability to transfer open file