Messages in this thread |  | | | Date | Wed, 04 Oct 2006 14:09:17 -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: > On Wed, Oct 04, 2006 at 01:52:58PM -0700, H. Peter Anvin wrote: >> 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. >> > > Eric is already doing that in his patch. He goes through vmlinux > headers to determine the memory to load the various segments and then > also takes into account the memory required by bootmem bitmap (128K) > and memory consumed by initial page tables (tools/build.c). We can > audit the code more closely for anything missed and can also include > some buffer amount to be safe. > > The only flip side would be that if down the line somebody changes > the initial bootup code, he shall have to also acccount it in > tools/build.c. Having said that, its not frequent that initial bootup > code changes. >
No, but it's going to be extremely hard to get this straight unless this is actually enforced. I suspect there needs to be a check and a message if this is violated.
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