Date: Wed, 12 Mar 2008 11:46:21 -0700 From: "Rao, Nikhil" <nikhil.rao@intel.com> To: <freebsd-hackers@freebsd.org> Subject: Shared VM address range across processes Message-ID: <12A5C15467D5B94F8E0FF265D9498ADD02B35F81@orsmsx419.amr.corp.intel.com>
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Hi,=20 =20 I want to map device memory into the same virtual address range in multiple processes, this means I would have to add a vm_map_entry per address range in every process, since the list of processes can be potentially huge .. Is it allowed to point to the same list of vm_map_entrys from multiple vm_spaces ? BSD3 had a field in the vm_map_entry that could be a share map - would it be an idea that I could reuse ? =20 Nikhil
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