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Re: Ensuring kernel address acquisition

Subject: Re: Ensuring kernel address acquisition
From: "Justin C. Walker" <email@hidden>
Date: Thu, 28 Mar 2002 14:41:14 -0800

On Thursday, March 28, 2002, at 12:53 AM, Arun Kishan wrote:

I would like to ensure that my KEXT acquires a couple pages of the
kernel's address space within 32MB of any instruction in the kernel's text
section. What is the best approach to guaranteeing this?

I don't believe that there are any APIs in the kernel to let you even ask the question, much less expect success. Your best bet may be to preallocate the area you want as part of the DATA area of your extension. Should be an easy test to see whether the virtual addresses are "nearby" your code.

Regards,

Justin

--
Justin C. Walker, Curmudgeon-At-Large *
Institute for General Semantics | Men are from Earth.
| Women are from Earth.
| Deal with it.
*--------------------------------------*-------------------------------*
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