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Re: Allocating non-pageable memory.

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Re: Allocating non-pageable memory.

Subject: Re: Allocating non-pageable memory.
From: Quinn <email@hidden>
Date: Wed, 17 Mar 2010 14:02:56 +0000

At 18:05 +0600 17/3/10, Inso Reiges wrote:

I have to store sensitive data inside my KEXT, so i don't want this
memory to be swapped out on the disk page file. Currently i use zone
allocator and OSMalloc to allocate different parts of structures that
contain this data. I am relatively new to darwin so can you please
advise if there is anything i need to worry about when using these
methods?

Inside the kernel non-pageable (wired) memory is the default. For example, to get pageable memory from OSMalloc, you have to create a special tag (with the OSMT_PAGEABLE flag) and use that for your allocations.

S+E
--
Quinn "The Eskimo!"                    <http://www.apple.com/developer/>
Apple Developer Relations, Developer Technical Support, Core OS/Hardware
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  >Allocating non-pageable memory. (From: Inso Reiges <email@hidden>)




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