Messages in this thread | | | Date | Wed, 04 Oct 2006 13:52:58 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH 12/12] i386 boot: Add an ELF header to bzImage |
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Vivek Goyal wrote: > > memsz will contain the memory required to load the kernel image. And > probably should also include the memory used by kernel in initial boot > up code which is unaccounted and unbounded. >
Right, so that's a major project to produce.
One modification that would be highly desirable is to be able to put initrd/initramfs in highmem, since people keep adding options which break the highmem/lowmem boundary without consideration for the implications; the latest one being vmalloc=.
>> I suspect we need at least one more piece of data, which is the required >> alignment of a relocated kernel. > > Now with the introduction of config option CONFIG_PHYSICAL_ALIGN, it > should be easy to get.
Yes, that should be easy.
>> Either which way, it seems clear that >> there is some re-engineering that needs to be done, and I think we need >> to better understand *why* the proposed patch failed. >> >> Can this failure be reproduced in a simulator? > > I will try to reproduce in a simulator. May be qemu? Any suggestions?
I find Bochs easier to debug under, although it's substantially slower.
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