From: "H. Peter Anvin" <hpa@zytor.com>
To: ravikumar.chakaravarthy@amd.com
Cc: linux-kernel@vger.kernel.org
Subject: Re: Loading and executing kernel from a non-standard address usin g SY SLINUX
Date: Thu, 20 Mar 2003 15:07:18 -0800 [thread overview]
Message-ID: <3E7A49A6.5000908@zytor.com> (raw)
In-Reply-To: <99F2150714F93F448942F9A9F112634CA54B2D@txexmtae.amd.com>
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
next prev parent reply other threads:[~2003-03-20 22:57 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-03-20 22:56 Loading and executing kernel from a non-standard address usin g SY SLINUX ravikumar.chakaravarthy
2003-03-20 23:07 ` H. Peter Anvin [this message]
-- strict thread matches above, loose matches on Subject: below --
2003-03-21 14:56 ravikumar.chakaravarthy
2003-03-07 15:46 ravikumar.chakaravarthy
2003-03-05 22:55 ravikumar.chakaravarthy
2003-03-04 18:47 ravikumar.chakaravarthy
2003-03-04 17:55 ravikumar.chakaravarthy
2003-03-04 18:12 ` Martin J. Bligh
2003-03-05 21:39 ` Kai Germaschewski
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