"arguments": { "filename": "/tmp/save" } }
<- { "return": {} }
+EQMP
+
+ {
+ .name = "xen-load-devices-state",
+ .args_type = "filename:F",
+ .mhandler.cmd_new = qmp_marshal_xen_load_devices_state,
+ },
+
+SQMP
+xen-load-devices-state
+----------------------
+
+Load the state of all devices from file. The RAM and the block devices
+of the VM are not loaded by this command.
+
+Arguments:
+
+- "filename": the file to load the state of the devices from as binary
+data. See xen-save-devices-state.txt for a description of the binary
+format.
+
+Example:
+
+-> { "execute": "xen-load-devices-state",
+ "arguments": { "filename": "/tmp/resume" } }
+<- { "return": {} }
+
EQMP
{
{
.name = "block-stream",
- .args_type = "device:B,base:s?,speed:o?,backing-file:s?,on-error:s?",
+ .args_type = "job-id:s?,device:B,base:s?,speed:o?,backing-file:s?,on-error:s?",
.mhandler.cmd_new = qmp_marshal_block_stream,
},
Arguments:
+- "job-id": Identifier for the newly-created block job. If omitted,
+ the device name will be used. (json-string, optional)
- "device": The device's ID, must be unique (json-string)
- "base": The file name of the backing image above which copying starts
(json-string, optional)
{
.name = "block-commit",
- .args_type = "device:B,base:s?,top:s?,backing-file:s?,speed:o?",
+ .args_type = "job-id:s?,device:B,base:s?,top:s?,backing-file:s?,speed:o?",
.mhandler.cmd_new = qmp_marshal_block_commit,
},
Arguments:
+- "job-id": Identifier for the newly-created block job. If omitted,
+ the device name will be used. (json-string, optional)
- "device": The device's ID, must be unique (json-string)
- "base": The file name of the backing image to write data into.
If not specified, this is the deepest backing image
{
.name = "drive-backup",
- .args_type = "sync:s,device:B,target:s,speed:i?,mode:s?,format:s?,"
- "bitmap:s?,on-source-error:s?,on-target-error:s?",
+ .args_type = "job-id:s?,sync:s,device:B,target:s,speed:i?,mode:s?,"
+ "format:s?,bitmap:s?,on-source-error:s?,on-target-error:s?",
.mhandler.cmd_new = qmp_marshal_drive_backup,
},
Arguments:
+- "job-id": Identifier for the newly-created block job. If omitted,
+ the device name will be used. (json-string, optional)
- "device": the name of the device which should be copied.
(json-string)
- "target": the target of the new image. If the file exists, or if it is a
{
.name = "blockdev-backup",
- .args_type = "sync:s,device:B,target:B,speed:i?,"
+ .args_type = "job-id:s?,sync:s,device:B,target:B,speed:i?,"
"on-source-error:s?,on-target-error:s?",
.mhandler.cmd_new = qmp_marshal_blockdev_backup,
},
Arguments:
+- "job-id": Identifier for the newly-created block job. If omitted,
+ the device name will be used. (json-string, optional)
- "device": the name of the device which should be copied.
(json-string)
- "target": the name of the backup target device. (json-string)
{
.name = "drive-mirror",
- .args_type = "sync:s,device:B,target:s,speed:i?,mode:s?,format:s?,"
- "node-name:s?,replaces:s?,"
+ .args_type = "job-id:s?,sync:s,device:B,target:s,speed:i?,mode:s?,"
+ "format:s?,node-name:s?,replaces:s?,"
"on-source-error:s?,on-target-error:s?,"
"unmap:b?,"
"granularity:i?,buf-size:i?",
Arguments:
+- "job-id": Identifier for the newly-created block job. If omitted,
+ the device name will be used. (json-string, optional)
- "device": device name to operate on (json-string)
- "target": name of new image file (json-string)
- "format": format of new image (json-string, optional)
{
.name = "blockdev-mirror",
- .args_type = "sync:s,device:B,target:B,replaces:s?,speed:i?,"
+ .args_type = "job-id:s?,sync:s,device:B,target:B,replaces:s?,speed:i?,"
"on-source-error:s?,on-target-error:s?,"
"granularity:i?,buf-size:i?",
.mhandler.cmd_new = qmp_marshal_blockdev_mirror,
Arguments:
+- "job-id": Identifier for the newly-created block job. If omitted,
+ the device name will be used. (json-string, optional)
- "device": device name to operate on (json-string)
- "target": device name to mirror to (json-string)
- "replaces": the block driver node name to replace when finished
- "compress-level": set compression level during migration (json-int)
- "compress-threads": set compression thread count for migration (json-int)
- "decompress-threads": set decompression thread count for migration (json-int)
-- "x-cpu-throttle-initial": set initial percentage of time guest cpus are
- throttled for auto-converge (json-int)
-- "x-cpu-throttle-increment": set throttle increasing percentage for
- auto-converge (json-int)
+- "cpu-throttle-initial": set initial percentage of time guest cpus are
+ throttled for auto-converge (json-int)
+- "cpu-throttle-increment": set throttle increasing percentage for
+ auto-converge (json-int)
Arguments:
{
.name = "migrate-set-parameters",
.args_type =
- "compress-level:i?,compress-threads:i?,decompress-threads:i?,x-cpu-throttle-initial:i?,x-cpu-throttle-increment:i?",
+ "compress-level:i?,compress-threads:i?,decompress-threads:i?,cpu-throttle-initial:i?,cpu-throttle-increment:i?",
.mhandler.cmd_new = qmp_marshal_migrate_set_parameters,
},
SQMP
- "compress-level" : compression level value (json-int)
- "compress-threads" : compression thread count value (json-int)
- "decompress-threads" : decompression thread count value (json-int)
- - "x-cpu-throttle-initial" : initial percentage of time guest cpus are
- throttled (json-int)
- - "x-cpu-throttle-increment" : throttle increasing percentage for
- auto-converge (json-int)
+ - "cpu-throttle-initial" : initial percentage of time guest cpus are
+ throttled (json-int)
+ - "cpu-throttle-increment" : throttle increasing percentage for
+ auto-converge (json-int)
Arguments:
<- {
"return": {
"decompress-threads": 2,
- "x-cpu-throttle-increment": 10,
+ "cpu-throttle-increment": 10,
"compress-threads": 8,
"compress-level": 1,
- "x-cpu-throttle-initial": 20
+ "cpu-throttle-initial": 20
}
}
{
.name = "trace-event-get-state",
- .args_type = "name:s",
+ .args_type = "name:s,vcpu:i?",
.mhandler.cmd_new = qmp_marshal_trace_event_get_state,
},
Query the state of events.
+Arguments:
+
+- "name": Event name pattern (json-string).
+- "vcpu": The vCPU to query, any vCPU by default (json-int, optional).
+
+An event is returned if:
+- its name matches the "name" pattern, and
+- if "vcpu" is given, the event has the "vcpu" property.
+
+Therefore, if "vcpu" is given, the operation will only match per-vCPU events,
+returning their state on the specified vCPU. Special case: if "name" is an exact
+match, "vcpu" is given and the event does not have the "vcpu" property, an error
+is returned.
+
Example:
-> { "execute": "trace-event-get-state", "arguments": { "name": "qemu_memalign" } }
{
.name = "trace-event-set-state",
- .args_type = "name:s,enable:b,ignore-unavailable:b?",
+ .args_type = "name:s,enable:b,ignore-unavailable:b?,vcpu:i?",
.mhandler.cmd_new = qmp_marshal_trace_event_set_state,
},
Set the state of events.
+Arguments:
+
+- "name": Event name pattern (json-string).
+- "enable": Whether to enable or disable the event (json-bool).
+- "ignore-unavailable": Whether to ignore errors for events that cannot be
+ changed (json-bool, optional).
+- "vcpu": The vCPU to act upon, all vCPUs by default (json-int, optional).
+
+An event's state is modified if:
+- its name matches the "name" pattern, and
+- if "vcpu" is given, the event has the "vcpu" property.
+
+Therefore, if "vcpu" is given, the operation will only match per-vCPU events,
+setting their state on the specified vCPU. Special case: if "name" is an exact
+match, "vcpu" is given and the event does not have the "vcpu" property, an error
+is returned.
+
Example:
-> { "execute": "trace-event-set-state", "arguments": { "name": "qemu_memalign", "enable": "true" } }
/backend/console[$index]. They have a device link and head property, so
it is possible to map which console belongs to which device and display.
-Note: this command is experimental, and not a stable API.
-
Example (1):
Press left mouse button.
{ "version": 3, "emulated": false, "kernel": true } ] }
EQMP
+
+ {
+ .name = "query-hotpluggable-cpus",
+ .args_type = "",
+ .mhandler.cmd_new = qmp_marshal_query_hotpluggable_cpus,
+ },
+
+SQMP
+Show existing/possible CPUs
+---------------------------
+
+Arguments: None.
+
+Example for pseries machine type started with
+-smp 2,cores=2,maxcpus=4 -cpu POWER8:
+
+-> { "execute": "query-hotpluggable-cpus" }
+<- {"return": [
+ { "props": { "core-id": 8 }, "type": "POWER8-spapr-cpu-core",
+ "vcpus-count": 1 },
+ { "props": { "core-id": 0 }, "type": "POWER8-spapr-cpu-core",
+ "vcpus-count": 1, "qom-path": "/machine/unattached/device[0]"}
+ ]}'
+
+Example for pc machine type started with
+-smp 1,maxcpus=2:
+ -> { "execute": "query-hotpluggable-cpus" }
+ <- {"return": [
+ {
+ "type": "qemu64-x86_64-cpu", "vcpus-count": 1,
+ "props": {"core-id": 0, "socket-id": 1, "thread-id": 0}
+ },
+ {
+ "qom-path": "/machine/unattached/device[0]",
+ "type": "qemu64-x86_64-cpu", "vcpus-count": 1,
+ "props": {"core-id": 0, "socket-id": 0, "thread-id": 0}
+ }
+ ]}
projects / mirror_qemu.git / blobdiff