| Message ID | 1625678434-240960-13-git-send-email-steven.sistare@oracle.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
| Series | Live Update | expand |
Hi On Wed, Jul 7, 2021 at 9:33 PM Steve Sistare <steven.sistare@oracle.com> wrote: > cprexec calls cprexec(). Syntax: > { 'command': 'cprexec', 'data': { 'argv': [ 'str' ] } } > > Add the restart mode: > { 'enum': 'CprMode', 'data': [ 'reboot', 'restart' ] } > > Signed-off-by: Steve Sistare <steven.sistare@oracle.com> > --- > monitor/qmp-cmds.c | 5 +++++ > qapi/cpr.json | 16 +++++++++++++++- > 2 files changed, 20 insertions(+), 1 deletion(-) > > diff --git a/monitor/qmp-cmds.c b/monitor/qmp-cmds.c > index 1128604..7326f7d 100644 > --- a/monitor/qmp-cmds.c > +++ b/monitor/qmp-cmds.c > @@ -179,6 +179,11 @@ void qmp_cprsave(const char *file, CprMode mode, > Error **errp) > cprsave(file, mode, errp); > } > > +void qmp_cprexec(strList *args, Error **errp) > +{ > + cprexec(args, errp); > +} > + > void qmp_cprload(const char *file, Error **errp) > { > cprload(file, errp); > diff --git a/qapi/cpr.json b/qapi/cpr.json > index b6fdc89..2467e48 100644 > --- a/qapi/cpr.json > +++ b/qapi/cpr.json > @@ -16,10 +16,12 @@ > # > # @reboot: checkpoint can be cprload'ed after a host kexec reboot. > # > +# @restart: checkpoint can be cprload'ed after restarting qemu. > +# > # Since: 6.1 > ## > { 'enum': 'CprMode', > - 'data': [ 'reboot' ] } > + 'data': [ 'reboot', 'restart' ] } > > > ## > @@ -61,6 +63,18 @@ > 'mode': 'CprMode' } } > > ## > +# @cprexec: > +# > +# Restart qemu. > +# > +# @argv: arguments to exec > Why is it not then called cpr-restart ? Why does it take the whole argv? Could argv be made optional? +# > +# Since: 6.1 > +## > +{ 'command': 'cprexec', > + 'data': { 'argv': [ 'str' ] } } > + > +## > # @cprload: > # > # Start virtual machine from checkpoint file that was created earlier > using > -- > 1.8.3.1 > > >
On 7/8/2021 11:49 AM, Marc-André Lureau wrote: > Hi > > On Wed, Jul 7, 2021 at 9:33 PM Steve Sistare <steven.sistare@oracle.com <mailto:steven.sistare@oracle.com>> wrote: > > cprexec calls cprexec(). Syntax: > { 'command': 'cprexec', 'data': { 'argv': [ 'str' ] } } > > Add the restart mode: > { 'enum': 'CprMode', 'data': [ 'reboot', 'restart' ] } > > Signed-off-by: Steve Sistare <steven.sistare@oracle.com <mailto:steven.sistare@oracle.com>> > --- > monitor/qmp-cmds.c | 5 +++++ > qapi/cpr.json | 16 +++++++++++++++- > 2 files changed, 20 insertions(+), 1 deletion(-) > > diff --git a/monitor/qmp-cmds.c b/monitor/qmp-cmds.c > index 1128604..7326f7d 100644 > --- a/monitor/qmp-cmds.c > +++ b/monitor/qmp-cmds.c > @@ -179,6 +179,11 @@ void qmp_cprsave(const char *file, CprMode mode, Error **errp) > cprsave(file, mode, errp); > } > > +void qmp_cprexec(strList *args, Error **errp) > +{ > + cprexec(args, errp); > +} > + > void qmp_cprload(const char *file, Error **errp) > { > cprload(file, errp); > diff --git a/qapi/cpr.json b/qapi/cpr.json > index b6fdc89..2467e48 100644 > --- a/qapi/cpr.json > +++ b/qapi/cpr.json > @@ -16,10 +16,12 @@ > # > # @reboot: checkpoint can be cprload'ed after a host kexec reboot. > # > +# @restart: checkpoint can be cprload'ed after restarting qemu. > +# > # Since: 6.1 > ## > { 'enum': 'CprMode', > - 'data': [ 'reboot' ] } > + 'data': [ 'reboot', 'restart' ] } > > > ## > @@ -61,6 +63,18 @@ > 'mode': 'CprMode' } } > > ## > +# @cprexec: > +# > +# Restart qemu. > +# > +# @argv: arguments to exec > > > Why is it not then called cpr-restart ? I'll change the description. exec is the key aspect to convey. < Why does it take the whole argv? It takes the whole argv because the caller may provide a prefix command to modify the process context before executing qemu. We do that. > Could argv be made optional? If argv is omitted, I could exec the qemu binary with no args, but I don't think that would be useful. It may even be confusing, if the caller has a bug and passes no args; qemu would start and do nothing, rather than fail with an "exec failed" message. - Steve > +# > +# Since: 6.1 > +## > +{ 'command': 'cprexec', > + 'data': { 'argv': [ 'str' ] } } > + > +## > # @cprload: > # > # Start virtual machine from checkpoint file that was created earlier using > -- > 1.8.3.1 > > > > > -- > Marc-André Lureau
On Wed, Jul 07, 2021 at 10:20:21AM -0700, Steve Sistare wrote: > cprexec calls cprexec(). Syntax: > { 'command': 'cprexec', 'data': { 'argv': [ 'str' ] } } > > Add the restart mode: > { 'enum': 'CprMode', 'data': [ 'reboot', 'restart' ] } > > Signed-off-by: Steve Sistare <steven.sistare@oracle.com> > --- > monitor/qmp-cmds.c | 5 +++++ > qapi/cpr.json | 16 +++++++++++++++- > 2 files changed, 20 insertions(+), 1 deletion(-) > > diff --git a/monitor/qmp-cmds.c b/monitor/qmp-cmds.c > index 1128604..7326f7d 100644 > --- a/monitor/qmp-cmds.c > +++ b/monitor/qmp-cmds.c > @@ -179,6 +179,11 @@ void qmp_cprsave(const char *file, CprMode mode, Error **errp) > cprsave(file, mode, errp); > } > > +void qmp_cprexec(strList *args, Error **errp) > +{ > + cprexec(args, errp); > +} Why do you need both qmp_cprexec() and cprexec()? Can you just name it qmp_cprexec() in cpr.c from the get-go, rather than having to add a one-line wrapper in qmp-cmds.c?
On 8/4/2021 12:00 PM, Eric Blake wrote: > On Wed, Jul 07, 2021 at 10:20:21AM -0700, Steve Sistare wrote: >> cprexec calls cprexec(). Syntax: >> { 'command': 'cprexec', 'data': { 'argv': [ 'str' ] } } >> >> Add the restart mode: >> { 'enum': 'CprMode', 'data': [ 'reboot', 'restart' ] } >> >> Signed-off-by: Steve Sistare <steven.sistare@oracle.com> >> --- >> monitor/qmp-cmds.c | 5 +++++ >> qapi/cpr.json | 16 +++++++++++++++- >> 2 files changed, 20 insertions(+), 1 deletion(-) >> >> diff --git a/monitor/qmp-cmds.c b/monitor/qmp-cmds.c >> index 1128604..7326f7d 100644 >> --- a/monitor/qmp-cmds.c >> +++ b/monitor/qmp-cmds.c >> @@ -179,6 +179,11 @@ void qmp_cprsave(const char *file, CprMode mode, Error **errp) >> cprsave(file, mode, errp); >> } >> >> +void qmp_cprexec(strList *args, Error **errp) >> +{ >> + cprexec(args, errp); >> +} > > Why do you need both qmp_cprexec() and cprexec()? Can you just name > it qmp_cprexec() in cpr.c from the get-go, rather than having to add a > one-line wrapper in qmp-cmds.c? Will do. While I'm at it, I will add an underscore to the function names and a dash to the command names to be consistent with other compound-word commands: qmp_cpr_save qmp_cpr_exec qmp_cpr_load cpr-save cpr-exec cpr-load - Steve
diff --git a/monitor/qmp-cmds.c b/monitor/qmp-cmds.c index 1128604..7326f7d 100644 --- a/monitor/qmp-cmds.c +++ b/monitor/qmp-cmds.c @@ -179,6 +179,11 @@ void qmp_cprsave(const char *file, CprMode mode, Error **errp) cprsave(file, mode, errp); } +void qmp_cprexec(strList *args, Error **errp) +{ + cprexec(args, errp); +} + void qmp_cprload(const char *file, Error **errp) { cprload(file, errp); diff --git a/qapi/cpr.json b/qapi/cpr.json index b6fdc89..2467e48 100644 --- a/qapi/cpr.json +++ b/qapi/cpr.json @@ -16,10 +16,12 @@ # # @reboot: checkpoint can be cprload'ed after a host kexec reboot. # +# @restart: checkpoint can be cprload'ed after restarting qemu. +# # Since: 6.1 ## { 'enum': 'CprMode', - 'data': [ 'reboot' ] } + 'data': [ 'reboot', 'restart' ] } ## @@ -61,6 +63,18 @@ 'mode': 'CprMode' } } ## +# @cprexec: +# +# Restart qemu. +# +# @argv: arguments to exec +# +# Since: 6.1 +## +{ 'command': 'cprexec', + 'data': { 'argv': [ 'str' ] } } + +## # @cprload: # # Start virtual machine from checkpoint file that was created earlier using
cprexec calls cprexec(). Syntax: { 'command': 'cprexec', 'data': { 'argv': [ 'str' ] } } Add the restart mode: { 'enum': 'CprMode', 'data': [ 'reboot', 'restart' ] } Signed-off-by: Steve Sistare <steven.sistare@oracle.com> --- monitor/qmp-cmds.c | 5 +++++ qapi/cpr.json | 16 +++++++++++++++- 2 files changed, 20 insertions(+), 1 deletion(-)