Messages in this thread | | | Date | Tue, 24 Jul 2007 16:49:07 +0200 | From | Helge Hafting <> | Subject | Re: Patches for REALLY TINY 386 kernels |
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Andi Kleen wrote: >> Some people are putting Linux kernels in the "BIOS" (i.e. ROM chip) when >> using LinuxBIOS (www.linuxbios.org). It _does_ make a lot of difference >> there how big the kernel is. At the moment you can't do that with >> anything smaller than a 1 MB chip. But if people could use 512 KB chips >> because the kernel is small enough that would sure be a great thing. >> > > I'm sure it would be possibel to save a lot of text size. But I don't > think removing the relatively small CPUID code is the right way. > That is just a big maintenance issue for little gain. > Well - anyone compiling linux for BIOS usage is targetting a single machine. So an ability to target a single machine is useful, i.e. run the CPUID at compile-time, put the answer in a constant/macro, let the optimizer prune the alternatives. :-)
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