Re: Question About Linux Memory Mapping
Russell King - ARM Linux <[email protected]> Fri, 18 Feb 2011 21:55:09 +0000
| Newsgroups | gmane.linux.ports.arm.general |
|---|---|
| Message-ID | <20110218215509.GB19427__48912.5815606259$1298066270$gmane$org@n2100.arm.linux.org.uk> |
On Fri, Feb 18, 2011 at 09:56:28PM +0100, Drasko DRASKOVIC wrote: > Hi all, > in the article Booting ARM Linux : > http://www.simtec.co.uk/products/SWLINUX/files/booting_article.html > I can see that mem map is passed via ATAG_MEM. However, in the same > article it is mentioned that this information can also be passed via > kernel command line paramters, mem=<size>[KM][,@<phys_offset>]. Why do you discard this information soo lightly? Did you try it? > However, this does not seem to be true, as "mem" command line > parameter seems to be formated like this : mem= n[KMG] (i.e. no > offset), regarding to this reference : > http://oreilly.com/linux/excerpts/9780596100797/kernel-boot-command-line-parameter-reference.html. > Seems like memmap should be used instead. Maybe O'Reilly is outdated?