Messages in this thread | | | Date | Thu, 20 Mar 2003 15:07:18 -0800 | From | "H. Peter Anvin" <> | Subject | Re: Loading and executing kernel from a non-standard address usin g SY SLINUX |
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ravikumar.chakaravarthy@amd.com wrote: > I tweaked the SYSLINUX boot loader and kernel to load and execute the kernel from 0x200000 (physical address). However when I try to load the kernel using the SYSLINUX bootloader to an address 0xdf000000(physical address) it doesn't work!! > I want to know if the following should work. > > 1. Should the syslinux be able to copy to the address DI=(0xdf000000). I think bcopy function in (SYSLINUX sources) does this.. Though the bcopy is done in the 32-bit mode, SOMETIMES it fails for this physical address). bcopy is called in runkernel.inc.
Yes.
> 2. Will I have any problem in the setup.S code in arch/i386/boot or head.S in arch/i386/boot/compressed because of this copy to 0xdf000000?? At times when it gets past step 1, it fails in malloc in arch/i386/boot/compressed/misc.c. The error it gives in "Memory Error"
Almost certainly.
-hpa
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