| Message ID | 1625678434-240960-5-git-send-email-steven.sistare@oracle.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Live Update | expand |
Hi On 2021/7/8 1:20, Steve Sistare wrote: > cprsave <file> <mode> > Call cprsave(). > Arguments: > file : save vmstate to this file name > mode: must be "reboot" > > cprload <file> > Call cprload(). > Arguments: > file : load vmstate from this file name > > cprinfo > Print to stdout a space-delimited list of modes supported by cprsave. > Arguments: none > > Signed-off-by: Mark Kanda <mark.kanda@oracle.com> > Signed-off-by: Steve Sistare <steven.sistare@oracle.com> > --- > hmp-commands.hx | 44 ++++++++++++++++++++++++++++++++++++++++++++ > include/monitor/hmp.h | 3 +++ > monitor/hmp-cmds.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ > 3 files changed, 95 insertions(+) > > diff --git a/hmp-commands.hx b/hmp-commands.hx > index 8e45bce..11827ae 100644 > --- a/hmp-commands.hx > +++ b/hmp-commands.hx > @@ -351,6 +351,50 @@ SRST > ERST > > { > + .name = "cprinfo", > + .args_type = "", > + .params = "", > + .help = "return list of modes supported by cprsave", > + .cmd = hmp_cprinfo, > + }, > + > +SRST > +``cprinfo`` > +Return a space-delimited list of modes supported by cprsave. > +ERST > + > + { > + .name = "cprsave", > + .args_type = "file:s,mode:s", > + .params = "file 'reboot'", > + .help = "create a checkpoint of the VM in file", > + .cmd = hmp_cprsave, > + }, > + > +SRST > +``cprsave`` *file* *mode* > +Pause the VCPUs, > +create a checkpoint of the whole virtual machine, and save it in *file*. > +If *mode* is 'reboot', the checkpoint remains valid after a host kexec > +reboot, and guest ram must be backed by persistant shared memory. To Should be persistent. > +resume from the checkpoint, issue the quit command, reboot the system, > +and issue the cprload command. > +ERST > + > + { > + .name = "cprload", > + .args_type = "file:s", > + .params = "file", > + .help = "load VM checkpoint from file", > + .cmd = hmp_cprload, > + }, > + > +SRST > +``cprload`` *file* > +Load a virtual machine from checkpoint file *file* and continue VCPUs. > +ERST > + > + { > .name = "delvm", > .args_type = "name:s", > .params = "tag", > diff --git a/include/monitor/hmp.h b/include/monitor/hmp.h > index 3baa105..98bb775 100644 > --- a/include/monitor/hmp.h > +++ b/include/monitor/hmp.h > @@ -58,6 +58,9 @@ void hmp_balloon(Monitor *mon, const QDict *qdict); > void hmp_loadvm(Monitor *mon, const QDict *qdict); > void hmp_savevm(Monitor *mon, const QDict *qdict); > void hmp_delvm(Monitor *mon, const QDict *qdict); > +void hmp_cprinfo(Monitor *mon, const QDict *qdict); > +void hmp_cprsave(Monitor *mon, const QDict *qdict); > +void hmp_cprload(Monitor *mon, const QDict *qdict); > void hmp_migrate_cancel(Monitor *mon, const QDict *qdict); > void hmp_migrate_continue(Monitor *mon, const QDict *qdict); > void hmp_migrate_incoming(Monitor *mon, const QDict *qdict); > diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c > index 0942027..8e80581 100644 > --- a/monitor/hmp-cmds.c > +++ b/monitor/hmp-cmds.c > @@ -33,6 +33,7 @@ > #include "qapi/qapi-commands-block.h" > #include "qapi/qapi-commands-char.h" > #include "qapi/qapi-commands-control.h" > +#include "qapi/qapi-commands-cpr.h" > #include "qapi/qapi-commands-machine.h" > #include "qapi/qapi-commands-migration.h" > #include "qapi/qapi-commands-misc.h" > @@ -1177,6 +1178,53 @@ void hmp_announce_self(Monitor *mon, const QDict *qdict) > qapi_free_AnnounceParameters(params); > } > > +void hmp_cprinfo(Monitor *mon, const QDict *qdict) > +{ > + Error *err = NULL; > + CprInfo *cprinfo; > + CprModeList *mode; > + > + cprinfo = qmp_cprinfo(&err); > + if (err) { > + goto out; > + } > + > + for (mode = cprinfo->modes; mode; mode = mode->next) { > + monitor_printf(mon, "%s ", CprMode_str(mode->value)); > + } > + > +out: > + hmp_handle_error(mon, err); > + qapi_free_CprInfo(cprinfo); > +} > + > +void hmp_cprsave(Monitor *mon, const QDict *qdict) > +{ > + Error *err = NULL; > + const char *mode; > + int val; > + > + mode = qdict_get_try_str(qdict, "mode"); > + val = qapi_enum_parse(&CprMode_lookup, mode, -1, &err); > + > + if (val == -1) { > + goto out; > + } > + > + qmp_cprsave(qdict_get_try_str(qdict, "file"), val, &err); > + > +out: > + hmp_handle_error(mon, err); > +} > + > +void hmp_cprload(Monitor *mon, const QDict *qdict) > +{ > + Error *err = NULL; > + > + qmp_cprload(qdict_get_try_str(qdict, "file"), &err); > + hmp_handle_error(mon, err); > +} > + > void hmp_migrate_cancel(Monitor *mon, const QDict *qdict) > { > qmp_migrate_cancel(NULL); >
diff --git a/hmp-commands.hx b/hmp-commands.hx index 8e45bce..11827ae 100644 --- a/hmp-commands.hx +++ b/hmp-commands.hx @@ -351,6 +351,50 @@ SRST ERST { + .name = "cprinfo", + .args_type = "", + .params = "", + .help = "return list of modes supported by cprsave", + .cmd = hmp_cprinfo, + }, + +SRST +``cprinfo`` +Return a space-delimited list of modes supported by cprsave. +ERST + + { + .name = "cprsave", + .args_type = "file:s,mode:s", + .params = "file 'reboot'", + .help = "create a checkpoint of the VM in file", + .cmd = hmp_cprsave, + }, + +SRST +``cprsave`` *file* *mode* +Pause the VCPUs, +create a checkpoint of the whole virtual machine, and save it in *file*. +If *mode* is 'reboot', the checkpoint remains valid after a host kexec +reboot, and guest ram must be backed by persistant shared memory. To +resume from the checkpoint, issue the quit command, reboot the system, +and issue the cprload command. +ERST + + { + .name = "cprload", + .args_type = "file:s", + .params = "file", + .help = "load VM checkpoint from file", + .cmd = hmp_cprload, + }, + +SRST +``cprload`` *file* +Load a virtual machine from checkpoint file *file* and continue VCPUs. +ERST + + { .name = "delvm", .args_type = "name:s", .params = "tag", diff --git a/include/monitor/hmp.h b/include/monitor/hmp.h index 3baa105..98bb775 100644 --- a/include/monitor/hmp.h +++ b/include/monitor/hmp.h @@ -58,6 +58,9 @@ void hmp_balloon(Monitor *mon, const QDict *qdict); void hmp_loadvm(Monitor *mon, const QDict *qdict); void hmp_savevm(Monitor *mon, const QDict *qdict); void hmp_delvm(Monitor *mon, const QDict *qdict); +void hmp_cprinfo(Monitor *mon, const QDict *qdict); +void hmp_cprsave(Monitor *mon, const QDict *qdict); +void hmp_cprload(Monitor *mon, const QDict *qdict); void hmp_migrate_cancel(Monitor *mon, const QDict *qdict); void hmp_migrate_continue(Monitor *mon, const QDict *qdict); void hmp_migrate_incoming(Monitor *mon, const QDict *qdict); diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c index 0942027..8e80581 100644 --- a/monitor/hmp-cmds.c +++ b/monitor/hmp-cmds.c @@ -33,6 +33,7 @@ #include "qapi/qapi-commands-block.h" #include "qapi/qapi-commands-char.h" #include "qapi/qapi-commands-control.h" +#include "qapi/qapi-commands-cpr.h" #include "qapi/qapi-commands-machine.h" #include "qapi/qapi-commands-migration.h" #include "qapi/qapi-commands-misc.h" @@ -1177,6 +1178,53 @@ void hmp_announce_self(Monitor *mon, const QDict *qdict) qapi_free_AnnounceParameters(params); } +void hmp_cprinfo(Monitor *mon, const QDict *qdict) +{ + Error *err = NULL; + CprInfo *cprinfo; + CprModeList *mode; + + cprinfo = qmp_cprinfo(&err); + if (err) { + goto out; + } + + for (mode = cprinfo->modes; mode; mode = mode->next) { + monitor_printf(mon, "%s ", CprMode_str(mode->value)); + } + +out: + hmp_handle_error(mon, err); + qapi_free_CprInfo(cprinfo); +} + +void hmp_cprsave(Monitor *mon, const QDict *qdict) +{ + Error *err = NULL; + const char *mode; + int val; + + mode = qdict_get_try_str(qdict, "mode"); + val = qapi_enum_parse(&CprMode_lookup, mode, -1, &err); + + if (val == -1) { + goto out; + } + + qmp_cprsave(qdict_get_try_str(qdict, "file"), val, &err); + +out: + hmp_handle_error(mon, err); +} + +void hmp_cprload(Monitor *mon, const QDict *qdict) +{ + Error *err = NULL; + + qmp_cprload(qdict_get_try_str(qdict, "file"), &err); + hmp_handle_error(mon, err); +} + void hmp_migrate_cancel(Monitor *mon, const QDict *qdict) { qmp_migrate_cancel(NULL);
cprsave <file> <mode> Call cprsave(). Arguments: file : save vmstate to this file name mode: must be "reboot" cprload <file> Call cprload(). Arguments: file : load vmstate from this file name cprinfo Print to stdout a space-delimited list of modes supported by cprsave. Arguments: none Signed-off-by: Mark Kanda <mark.kanda@oracle.com> Signed-off-by: Steve Sistare <steven.sistare@oracle.com> --- hmp-commands.hx | 44 ++++++++++++++++++++++++++++++++++++++++++++ include/monitor/hmp.h | 3 +++ monitor/hmp-cmds.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 95 insertions(+)