Mailing Lists: Apple Mailing Lists
Image of Mac OS face in stamp
Re: Getting Physical address of a buffer
[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: Getting Physical address of a buffer



What Shantonu and Mike said.

-- Terry

On Aug 6, 2010, at 1:47 AM, shailesh jain wrote:
> terry ?
>
> On Thu, Aug 5, 2010 at 11:10 AM, shailesh jain
> <email@hidden> wrote:
>> Hello again!
>>   I have a kernel extension (which is not an IOKit driver) that uses
>> OSMalloc_ KPI to allocate buffer. I pass in OSMT_DEFAULT so that
>> buffers that it returns are wired to memory. I have a use case where
>> in I would like
>> to get physical address of the first byte of the buffer. I understand
>> that buffer will not be contiguous in Physical memory and I am fine
>> with that.  Do we have such an interface ---
>>
>> something like:  physAddr = virt_to_phys(buffer);    // Gives physical
>> address of first byte of the buffer

 _______________________________________________
Do not post admin requests to the list. They will be ignored.
Darwin-kernel mailing list      (email@hidden)
Help/Unsubscribe/Update your Subscription:

This email sent to email@hidden

References: 
 >Getting Physical address of a buffer (From: shailesh jain <email@hidden>)
 >Re: Getting Physical address of a buffer (From: shailesh jain <email@hidden>)



Visit the Apple Store online or at retail locations.
1-800-MY-APPLE

Contact Apple | Terms of Use | Privacy Policy

Copyright © 2011 Apple Inc. All rights reserved.