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Date: Sun, 19 Aug 2012 23:05:16 -0600
From: Peter Grehan <grehan@freebsd.org>
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To: Roman Bogorodskiy <novel@FreeBSD.org>
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Cc: freebsd-virtualization@freebsd.org
Subject: Re: BHyVe: vm_setup_memory(highmem): Cannot allocate memory
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Hi Roman,

> I have managed to boot a VM.

  Great !

> The 4GB thing is hardcoded in the vmrun.sh script:

  The bhyve memory parameters mirror standard PC architecture. RAM is 
usually contiguous below 4GB, with the region from top-of-RAM to 4GB 
reserved for PCI memory-mapped i/o space. Additional RAM is usually 
contiguous and starts from 4GB.

later,

Peter.