Questions on Hugetlb for bookE and PHYS_64BIT

Scott Wood scottwood at
Sat Jun 16 04:11:56 EST 2012

On 06/15/2012 09:43 AM, telenn barz wrote:
> Hi all,
> CONFIG_PHYS_64BIT enables kernel support for larger than 32-bit physical
> addresses. Is it this configuration option we have to enable for the
> support of 36-bit real memory (as are capable the Freescale e500v2 or
> e500mc cores family) ?


> The Hugetlb patch for BookE
> (
> seems to be surbordinated to CONFIG_PHYS_64BIT. Is there any good reason
> why it is not supported when CONFIG_PHYS_64BIT is disabled ?

Because it would be extra work to support that configuration, and
nobody's felt enough of a need for it to put in that work.


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