[PATCH 3/8] add mem64_min/max control

[Yinghai Lu]

On Sat, Nov 17, 2012 at 12:04 PM, Yinghai Lu <yinghai at kernel.org> wrote:
> On Sat, Nov 17, 2012 at 12:25 AM, Eric W. Biederman
> <ebiederm at xmission.com> wrote:
>
> then for setup data (boot param) and command line, we have to set extra ident
> mapping for them in kernel arch/x86/kernel/head_64.S
>

find the solution for this one:
We don't need to set ident map for boot_param and command line in head_64.S

as we already get arch/x86/kernel/head64.c, and could use
early_ioremap to access
and copy them out.

Now, will check if can put purgatory above 4g.

Thanks

Yinghai