Re: [PATCH 23/25] [PATCH] paravirt hooks for arch initialization

[Jeremy Fitzhardinge]

Glauber de Oliveira Costa wrote:
> Indeed, as the EBDA_ADDR_POINTER is not aligned, this may work even
> better.
>
> It seems to me safe to assume that if we read zero on that line:
>
> ebda_addr = *(unsigned short *)__va(EBDA_ADDR_POINTER);
>
> We could just do ebda_size = 0 and go home happy, skipping the rest of
> the process.

Sure, but it should use probe_kernel_addr as well, just so that it will
be robust against having that page unmapped too.

    J
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