Re: [Xen-devel] access shared_info?

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 7 Jun 2006, at 22:55, Chris Wright wrote:

> >         /* Nothing to do if not running in dom0. */
> > -       if (!(xen_start_info->flags & SIF_INITDOMAIN))
> > +       if (!(xen_start_info->flags & SIF_INITDOMAIN)) {
> > +               struct e820entry domU_e820 = {
> > +                       .addr = 0,
> > +                       .size = max_pfn << PAGE_SHIFT,
> > +                       .type = E820_RAM,
> > +               };
> Or just do this during normal setup, then it is the base e820 map.  I
> believe it's already done isn't it?
>
>                 memmap.nr_entries = 1;
>                 map[0].addr = 0ULL;
>                 map[0].size = xen_start_info->nr_pages << PAGE_SHIFT;
>                 /* 8MB slack (to balance backend allocations). */
>                 map[0].size += 8 << 20;
>                 map[0].type = E820_RAM;
> ...
>         BUG_ON(copy_e820_map(map, (char)memmap.nr_entries) < 0);
Does the existing e820-faking code run early enough to be able to use 
max_pfn?
 -- Keir


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