Re: Never mind Re: [Xen-devel] Re: Xen reboots when trying to start new domain

[Kip Macy <kmacy@xxxxxxxxxxxxxxx>]

I don't know off hand where it goes away, but this is the comment from
the native locore.s:

/* install a pde for temporary double map of bottom of VA */
        movl    R(KPTphys), %eax
        xorl    %ebx, %ebx
        movl    $NKPT, %ecx
        fillkpt(R(IdlePTD), $PG_RW)

So, odds are it can be g/c'd as soon as pmap_init is run if not earlier.


                        -Kip



On Fri, 10 Sep 2004, Keir Fraser wrote:

> > I just burned an extra page so I'm not aliasing the page table - so now
> > it comes up.
> >
> >
> >                                     -Kip
> >
>
> Excellent! I'd encourage you to continue to avoid the aliasing, as it
> may lead to performance degradation in the future. Once you're up can
> you kill the low mappings and free the extra page?
>
>  -- Keir
>
>
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