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Re: How to map memory into kext
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Re: How to map memory into kext

  • Subject: Re: How to map memory into kext
  • From: Nick Blievers <email@hidden>
  • Date: Fri, 28 Jan 2011 14:26:55 +1100
Sorry to keep pasting links to the developer docs... but this stuff is all in there:

http://developer.apple.com/library/mac/#documentation/Darwin/Conceptual/KernelProgramming/boundaries/boundaries.html#//apple_ref/doc/uid/TP30000905-CH217-BEHJDFCA

Specifically you want to read about boundary crossing and choose a method that suits you. The Memory Mapping and Block Copying part may interest you.


Hope this helps!

On 28/01/2011, at 12:57 PM, searockcliff wrote:

Thanks for your information!
I allocated the memory in the daemon, then I want to share it in the kext, not IOKit.
That is to map memory from daemon into kext.
What APIs should I use?

At 2011-01-28 05:03:26，"Nick Blievers" <email@hidden> wrote:
It depends a little on where your code is allocating memory. Is it iokit code or mach (or bsd) code?

Have a look here:

http://developer.apple.com/library/mac/#documentation/Darwin/Conceptual/KernelProgramming/vm/vm.html#//apple_ref/doc/uid/TP30000905-CH210-BEHJDFCA


Nick


On 28/01/2011, at 1:33 AM, searockcliff wrote:

Any guys know this?
 I know IOMemoryDescriptor in IOKit.
Can IOMemoryDescriptor be used for normal kexts?
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References: 
 >Re: How to map memory into kext (From: Nick Blievers <email@hidden>)
 >How to map memory into kext (From: searockcliff <email@hidden>)
 >Re:Re: How to map memory into kext (From: searockcliff <email@hidden>)

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