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Re: Fwd: memory probing


From: alfred hitch
Subject: Re: Fwd: memory probing
Date: Tue, 10 May 2005 06:23:00 -0400

I agree with u, 
if there are holes and all in the area being scanned also with this fail ?

anyways, how can u get this from processor also ? 
I vaguely remember see'ing some code where someone on a i386 based
plattform but WITHOUT bios, used smbus protocol to talk to a device
across PIIX4 to get the info.

I am not familiar with PC architecture, so can someone tell me if
there is some standard chip  (memory controller? ?) where one can read
this on PC type arch. atleast ?

I am on  a IXDP425 plattform, and so far I cannot see any such
register on the data sheets ..

Cheers,
Alfred

On 5/10/05, Marco Gerards <address@hidden> wrote:
> "coly li" <address@hidden> writes:
> 
> > write and verify means: you read the content from location X, and
> > change the value, then write back to location X; then re-read the
> > content from X, if the value is what you write, the location X is
> > valid; otherwise, maybe the location X is invalid.
> 
> This sounds dangerous to me, what if you are writing to memory mapped
> I/O?  I think you can get the amount of memory from the processor, no?
> 
> --
> Marco
> 
>




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