Mapping a physical memory to linear address

NTFSD
1

Hai All,

I want to access the physical memory address of RAM in the system from a
User Mode Application. Is there any way to do this?

Are there funtions available to map the physical address to linear address
in the user mode.

Is it neccessary for me to write a kernel module to achieve this.

Any information is greatly helpful.

Thanks in advance,
kedar.

2

From a usermode application in Windows NT, I don’t
think you can directly access the physical memory. The
user mode apps deal only with virtual addresses.

You will have to write a kernel mode driver (or load
your program before Win NT loads :wink:

Regards,
Manoj

— xxxxx@hotmail.com wrote: > Hai All,

I want to access the physical memory address of RAM
in the system from a
User Mode Application. Is there any way to do this?

Are there funtions available to map the physical
address to linear address
in the user mode.

Is it neccessary for me to write a kernel module to
achieve this.

Any information is greatly helpful.

Thanks in advance,
kedar.

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3

It is possible by mapping a view of physical memory section.

----- Original Message -----
From: “Manoj Paul Joseph”
To: “File Systems Developers”
Sent: Tuesday, October 15, 2002 5:51 PM
Subject: [ntfsd] Re: Mapping a physical memory to linear address

> From a usermode application in Windows NT, I don’t
> think you can directly access the physical memory. The
> user mode apps deal only with virtual addresses.
>
> You will have to write a kernel mode driver (or load
> your program before Win NT loads :wink:
>
> Regards,
> Manoj
>
>
> — xxxxx@hotmail.com wrote: > Hai All,
> >
> > I want to access the physical memory address of RAM
> > in the system from a
> > User Mode Application. Is there any way to do this?
> >
> > Are there funtions available to map the physical
> > address to linear address
> > in the user mode.
> >
> > Is it neccessary for me to write a kernel module to
> > achieve this.
> >
> > Any information is greatly helpful.
> >
> > Thanks in advance,
> > kedar.
> >
> > —
> > You are currently subscribed to ntfsd as:
> > xxxxx@yahoo.com
> > To unsubscribe send a blank email to
> %%email.unsub%%
>
> ________________________________________________________________________
> Missed your favourite TV serial last night? Try the new, Yahoo! TV.
> visit http://in.tv.yahoo.com
>
>
> —
> You are currently subscribed to ntfsd as: xxxxx@rdsor.ro
> To unsubscribe send a blank email to %%email.unsub%%
>

4

see www.sysinternals.com/ntw2k/info/tips.shtml
-> PhysMem

“Dan Partelly”

o> cc:
Sent by: Subject: [ntfsd] Re: Mapping a physical memory to linear address
xxxxx@lis
ts.osr.com

15.10.2002 18:46
Please respond to
“File Systems
Developers”

It is possible by mapping a view of physical memory section.

----- Original Message -----
From: “Manoj Paul Joseph”
To: “File Systems Developers”
Sent: Tuesday, October 15, 2002 5:51 PM
Subject: [ntfsd] Re: Mapping a physical memory to linear address

> From a usermode application in Windows NT, I don’t
> think you can directly access the physical memory. The
> user mode apps deal only with virtual addresses.
>
> You will have to write a kernel mode driver (or load
> your program before Win NT loads :wink:
>
> Regards,
> Manoj
>
>
> — xxxxx@hotmail.com wrote: > Hai All,
> >
> > I want to access the physical memory address of RAM
> > in the system from a
> > User Mode Application. Is there any way to do this?
> >
> > Are there funtions available to map the physical
> > address to linear address
> > in the user mode.
> >
> > Is it neccessary for me to write a kernel module to
> > achieve this.
> >
> > Any information is greatly helpful.
> >
> > Thanks in advance,
> > kedar.
> >
> > —
> > You are currently subscribed to ntfsd as:
> > xxxxx@yahoo.com
> > To unsubscribe send a blank email to
> %%email.unsub%%
>
> ________________________________________________________________________
> Missed your favourite TV serial last night? Try the new, Yahoo! TV.
> visit http://in.tv.yahoo.com
>
>
> —
> You are currently subscribed to ntfsd as: xxxxx@rdsor.ro
> To unsubscribe send a blank email to %%email.unsub%%
>

—
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