[LinuxBIOS] Compressing the OLPC VSM?

Stefan Reinauer stepan at coresystems.de
Wed May 24 01:29:04 CEST 2006


* Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net> [060523 19:52]:
> Ronald G Minnich wrote:
> > Carl-Daniel Hailfinger wrote:
> >> Hi,
> >>
> >> the VSM Ron mailed yesterday to olpc-devel can be compressed
> >> very well to under 32 kb.
> >>
> >> 65536 vsa_test.64k-0001.bin
> >> 35587 vsa_test.64k-0001.bin.nrv2b
> >> 32143 vsa_test.64k-0001.bin.lzma
> >>
> >> Is the VSM executed after RAM is there and can we use compression
> >> for it? 50% savings are really good.
> >>
> > yes, this is great. I want to move to the new compression asap.
> 
> See my other patch to the list which adds the decompression code
> and infrastructure. I'm preparing another patch which will make
> use of all that code. The patches I sent until now do not modify
> any existing code, so they should be safe to apply.

Can you try and see whether we can exchange the assembler nrv2b code 
in crt0.S.lb with something gcc compiled? This would make the whole
compression thing nicely pluggable..

Stefan


-- 
coresystems GmbH • Brahmsstr. 16 • D-79104 Freiburg i. Br.
      Tel.: +49 761 7668825 • Fax: +49 761 7664613
Email: info at coresystems.dehttp://www.coresystems.de/




More information about the coreboot mailing list