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Re: [Xen-devel] [PATCH 21/21] xenstored: Add stub domain builder



On Mon, 23 Jan 2012, Ian Campbell wrote:
> On Fri, 2012-01-20 at 20:47 +0000, Daniel De Graaf wrote:
> > +int main(int argc, char** argv)
> > +{
> > +   xc_interface *xch;
> > +   struct xs_handle *xsh;
> > +   char buf[16];
> > +   int rv;
> > +
> > +   if (argc != 4) {
> > +           printf("Use: %s <xenstore-kernel> <memory_mb> <flask-label>\n", 
> > argv[0]);
> > +           return 2;
> > +   }
> > +
> > +   xch = xc_interface_open(NULL, NULL, 0);
> > +   if (!xch) return 1;
> > +
> > +   rv = build(xch, argv);
> > +
> > +   xc_interface_close(xch);
> > +
> > +   if (rv) return 1;
> 
> Did you consider forking a daemon at this point to sit and drain the
> domains console ring into a log file? (instead of/as well as your patch
> 08/21).

I don't know if there are any benefits in basing this stub domain builder
on libxl but if it was based on libxl you could just add a pv console
device with consback = LIBXL_CONSOLE_BACKEND_IOEMU and then set output =
"file:/path/to/file", and you would have your logging going to that
file.

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