On 04/03/2013 06:11 PM, Simon Jeons wrote:
>
> Why we consider boot_cpu_data.x86_phys_bits instead of e820 map here?
>
Because x86_phys_bits is what controls how much address space the
processor has. e820 tells us how much *RAM* the machine has, or
specifically, how much RAM the machine had on boot.
-hpa
--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.
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