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From: John Baldwin <jhb@freebsd.org>
To: freebsd-amd64@freebsd.org
Subject: Re: memory type e820
Date: Tue, 7 Oct 2014 10:50:34 -0400
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On Wednesday, September 24, 2014 5:12:37 am Sourish Mazumder wrote:
> Hi,
> 
> Does freebsd has a linux equivalent of the function e820_any_mapped() ?
> This function is used to scan the system memory for a specific type.
> 
> How to scan the system memory in freebsd?

There is not an equivalent function, no.  There is phys_avail[] (memory pages 
available for the VM system to use, doesn't include some early allocations 
such as the message buffer) and dump_avail[] (all memory pages).

What are you trying to scan for?

-- 
John Baldwin