Re: [Xen-devel] [PATCH v3] libxl: add "xl qemu-monitor-command"

[Wei Liu <wei.liu2@xxxxxxxxxx>]

On Tue, Sep 06, 2016 at 02:16:30PM +0200, Dario Faggioli wrote:
> On Tue, 2016-09-06 at 12:51 +0200, Juergen Gross wrote:
> > Add a new xl command "qemu-monitor-command" to issue arbitrary
> > commands
> > to a domain's device model. Syntax is:
> > 
> > xl qemu-monitor-command <domain> <command>
> > 
> > The command is issued via qmp human-monitor-command command. Any
> > information returned by the command is printed to stdout.
> > 
> > Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
> > ---
> > V3: - add GC_FREE as requested by Dario Faggioli
> >     - return with EXIT_FAILURE/SUCCESS as requested by Dario Faggioli
> >
> I think you missed one...
> 
> > diff --git a/tools/libxl/xl_cmdimpl.c b/tools/libxl/xl_cmdimpl.c
> > index 7540fb1..d1a2a14 100644
> > --- a/tools/libxl/xl_cmdimpl.c
> > +++ b/tools/libxl/xl_cmdimpl.c
> > @@ -9536,6 +9536,35 @@ int main_psr_hwinfo(int argc, char **argv)
> >  
> >  #endif
> >  
> > +int main_qemu_monitor_command(int argc, char **argv)
> > +{
> > +    int opt;
> > +    uint32_t domid;
> > +    char *cmd;
> > +    char *output;
> > +    int ret;
> > +
> > +    SWITCH_FOREACH_OPT(opt, "", NULL, "qemu-monitor-command", 2) {
> > +        /* No options */
> > +    }
> > +
> > +    domid = find_domain(argv[optind]);
> > +    cmd = argv[optind + 1];
> > +
> > +    if (argc - optind > 2) {
> > +        fprintf(stderr, "Invalid arguments.\n");
> > +        return 1;
> >
> ...here.
> 
> Anyway, this is
> 
> Reviewed-by: Dario Faggioli <dario.faggioli@xxxxxxxxxx>

Thanks for reviewing.

Acked-by: Wei Liu <wei.liu2@xxxxxxxxxx>

> 
> if possible, with the above 'return 1' converted to 'return
> EXIT_FAILURE' (either by resending or done upon commit).
> 

I can fix that up, no need to resend.

Wei.

> If a maintainer wants to ack and commit this as is, my R-b still
> stands. In fact, as I said, xl is still not yet 100% consistent wrt
> this, and although I think new code should comply with the rule, I
> won't stand in the way of a patch for something like this.
> 
> Regards,
> Dario
> -- 
> <<This happens because I choose it to happen!>> (Raistlin Majere)
> -----------------------------------------------------------------
> Dario Faggioli, Ph.D, http://about.me/dario.faggioli
> Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK)
> 



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