[PATCH] pseries: phyp dump: Variable size reserve space.

Linas Vepstas linasvepstas at gmail.com
Thu Apr 17 06:22:42 EST 2008


On 07/04/2008, Manish Ahuja <ahuja at austin.ibm.com> wrote:
> A small proposed change in the amount of reserve space we allocate during boot.
>  Currently we reserve 256MB only.
>  The proposed change does one of the 3 things.
>
>  A. It checks to see if there is cmdline variable set and if found sets the
>    value to it. OR
>  B. It computes 5% of total ram and rounds it down to multiples of 256MB. AND
>  C. Compares the rounded down value and returns larger of two values, the new
>    computed value or 256MB.
>
>  Again this is for large systems who have excess memory.
>
[...]
>   early_param("phyp_dump", early_phyp_dump_enabled);

I'm pretty sure you will want to document this boot param in the documentation,
as well as add a few words about why it might be interesting to users (i.e.
that its for large systems...)

--linas



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