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From: Brian <balexander-osxm6dDZNBBZx8iatJs59jGjJy/sRE9J@public.gmane.org>
To: linux-rdma-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
Subject: Re: Problem Pinning Physical Memory
Date: Fri, 26 Nov 2010 14:08:07 +0000 (UTC)	[thread overview]
Message-ID: <loom.20101126T150517-203@post.gmane.org> (raw)
In-Reply-To: 20101124135507.GA23230@mtldesk30

Eli Cohen <eli@...> writes:
> You can't regiter IO memory using ibv_reg_mr() - you can only do that
> by registering that memory using physical memory registration which is
> available only for kernel consumers. You can't allow userspace to
> register physical pages as this is a security breach.

So, would ibv_reg_mr work with physical memory if run from a kernel module? (or
would something else have to be used instead). I have no requirement that this
run in userspace.

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      parent reply	other threads:[~2010-11-26 14:08 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2010-11-22 18:28 Problem Pinning Physical Memory Brian
     [not found] ` <loom.20101122T192618-795-eS7Uydv5nfjZ+VzJOa5vwg@public.gmane.org>
2010-11-24 13:55   ` Eli Cohen
2010-11-24 17:42     ` Jason Gunthorpe
     [not found]       ` <20101124174245.GA25325-ePGOBjL8dl3ta4EC/59zMFaTQe2KTcn/@public.gmane.org>
2010-11-29 17:10         ` Steve Wise
     [not found]           ` <4CF3DE7D.4060105-7bPotxP6k4+P2YhJcF5u+vpXobYPEAuW@public.gmane.org>
2010-11-29 17:13             ` Tom Tucker
2010-11-30 15:24               ` Alan Cook
     [not found]                 ` <loom.20101130T160950-109-eS7Uydv5nfjZ+VzJOa5vwg@public.gmane.org>
2010-11-30 20:26                   ` Tom Tucker
2010-12-01 15:30                     ` Alan Cook
     [not found]                       ` <loom.20101201T162410-279-eS7Uydv5nfjZ+VzJOa5vwg@public.gmane.org>
2010-12-02  7:19                         ` Or Gerlitz
     [not found]                           ` <4CF7487C.3080209-smomgflXvOZWk0Htik3J/w@public.gmane.org>
2010-12-02 16:09                             ` Alan Cook
2010-11-26 14:08     ` Brian [this message]

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