Re: Allocating a page of memory with a given physical address

[Timur Tabi <ttabi@interactivesi.com>]

** Reply to message from "Stephen C. Tweedie" <sct@redhat.com> on Thu, 8 Jun
2000 22:47:44 +0100


> No, nor is it likely to be added without a compelling reason.  Why do 
> you need this?

Unfortunately, it's part of my company's upcoming product, and I can't give a
detailed explanation.  I understand that such a response does not endear me to
the Linux community, but my hands are tied.  All I can say is that all of us
software guys here have given it a lot of thought, and we're absolutely positive
that we need this functionality.   We need to be able to read/write memory to
specific DIMMs.

In fact, it's one of the reasons why we support only Windows 2000, not Windows
NT or 95/98, because those older products don't have this kind of feature.

Hmmm... I just thought of something.  Knowing that there's a direct linear
mapping between virtual memory and physical memory in kernel space, I could
simply allocate a block of memory at a specific virtual address.  Would that be
any easier?






--
Timur Tabi - ttabi@interactivesi.com
Interactive Silicon - http://www.interactivesi.com
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