Re: [PATCH] Documentation: vm: Add 1GB large page support information

[Andi Kleen]

Dave Hansen <dave.hansen@xxxxxxxxx> writes:

> On 11/05/2014 07:21 AM, Masanari Iida wrote:
>> Luiz, Dave,
>> Thanks for comments.
>> 
>> I understand that there are some exception cases which doesn't support 1G
>> large pages on newer CPUs.
>> I like Dave's example, at the same time I would like to add "pdpe1gb flag" in
>> the document.
>> 
>> For example, x86 CPUs normally support 4K and 2M (1G if pdpe1gb flag exist).
>
> Is 1G supported on CPUs that have pdpe1gb and are running a 32-bit kernel?

No, 1GB pages is a 64bit only feature.

-Andi

-- 
ak@xxxxxxxxxxxxxxx -- Speaking for myself only
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