Messages in this thread | | | Date | Tue, 31 Oct 2006 17:12:39 +0900 | From | Paul Mundt <> | Subject | Re: reserve memory in low physical address - possible? |
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On Mon, Oct 30, 2006 at 11:22:03PM -0800, Jun Sun wrote: > I understand it is possible to reserve some memory at the end by > specifying "mem=xxxM" option in kernel command line. I looked into > "memmap=xxxM" option but it appears not helpful for what I want. > memmap takes multiple arguments, including the start address for the memory map. You could also bump min_low_pfn manually if memmap= isn't suitable for you, something like:
magic_space = PFN_UP(init_pg_tables_end); min_low_pfn = magic_space + magic_size;
(assuming magic_size is rounded up already), should work fine. Though memmap= already takes care of most of this for you, could you explain why it's unsuitable? - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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