Re: [PATCH for-4.15] tools/xenstored: liveupdate: Increase the maximum number of parameters

[Jürgen Groß <jgross@xxxxxxxx>]

On 05.03.21 15:37, Ian Jackson wrote:
> Jürgen Groß writes ("Re: [PATCH for-4.15] tools/xenstored: liveupdate: Increase the 
> maximum number of parameters"):
> > This is the max number of 0 delimited string parameters. Especially the
> > stubdom case needs a binary blob (with length, of course) as parameter,
> > and the number of 0 bytes in this data is just limited by the allowed
> > payload length.
> >
> > See the comment in line 111 of xenstored_control.c.
> AFAICT this "live-update" command is variadic.  So why is this
> parameter set here it all then ?
In order to avoid allocating an array for 4000 arguments when there
are only 5 which need to be treated as strings.


Juergen

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