Re: [RFC PATCH 1/3] Replace paravirt_probe with "platform type" boot header field

[ebiederm@xmission.com (Eric W. Biederman)]

"H. Peter Anvin" <hpa@zytor.com> writes:

> Eric W. Biederman wrote:
>> 
>> Unlikely.  Unless we expect that this offset will come in non-zero.
>> 
>
> You might have to worry about that.  Historically, the "zero-page" was
> really just the setup code overwritten, and it's still true for a big
> chunk of it.
>
> One of the major changes in my setup code rewrite is to start out with
> an all-zero chunk of memory for this.

Well as long as we are in sync with setup.S we are fine.  The issue
is people generating the real-mode data from scratch, when using the
32bit entry point.

Eric
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