Re: [Ltib] Regarding 64 Bit addressing and Page table Entries in 2.6.34 LTIB configuration.

[Stuart Hughes]

Hi Ganesh,

Run ./ltib -m config

Select configure the kernel and the run: ./ltib

You'll get dropped to the kernel build configuration and you can
de-select that option in there.  On exit the build will complete.

Regards, Stuart

Ganesh Reddy K wrote:
> Hi,
> 
> I want to disable 'Large  physical address support' in 2.6.34 Linux
> kernel LTIB.     i.e 64 Bit memory addressing and Page tables.
> 
> Along with this ,am i need to any other changes to have the kernel
> without 64 Bit address completely and page table entries.
> 
> 
> 
> ===========================================
> arch/powerpc/platforms/Kconfig.cputype
> 
> config PHYS_64BIT
>        bool 'Large physical address support' if E500 || PPC_86xx
>        depends on (44x || E500 || PPC_86xx) && !PPC_83xx && !PPC_82xx
>        ---help---
>          This option enables kernel support for larger than 32-bit physical
>          addresses.  This feature may not be available on all cores.
> 
>          If you have more than 3.5GB of RAM or so, you also need to enable
>          SWIOTLB under Kernel Options for this to work.  The actual number
>          is platform-dependent.
> 
>          If in doubt, say N here.
> ===========================================
> 
> Thanks in advance,
> Ganesh
> 
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