[Qemu-devel] Re: [PATCHv4 15/15] Pass boot device list to firmware.

[Michael S. Tsirkin]

On Sun, Nov 14, 2010 at 08:52:37PM +0200, Gleb Natapov wrote:
> > > +
> > > +        len = strlen(bootpath);
> > > +        list = qemu_realloc(list, total + len + 1);
> > > +        list[total++] = len;
> > > +        memcpy(&list[total], bootpath, len);
> > > +        total += len;
> > > +        c++;
> > > +        qemu_free(bootpath);
> > 
> > Man, is this tricky.
> > 
> Nah, not at all.

I think it will be easier if we don't try to do this in one pass.
1. pass: calculate total length and # of devices
2. allocate
2. pass fill in

> --
>                       Gleb.