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Date: Wed, 20 Mar 2013 16:56:01 -0400
From: "Michael R. Hines" <mrhines@linux.vnet.ibm.com>
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Subject: Re: [Qemu-devel] [RFC PATCH RDMA support v4: 03/10] more verbose
 documentation of the RDMA transport
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To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: aliguori@us.ibm.com, qemu-devel@nongnu.org, owasserm@redhat.com, abali@us.ibm.com, mrhines@us.ibm.com, gokul@us.ibm.com, Paolo Bonzini <pbonzini@redhat.com>


Forgive me, vmsplice system call? Or some other interface?

I'm not following......

On 03/20/2013 04:46 PM, Michael S. Tsirkin wrote:
> On Wed, Mar 20, 2013 at 04:39:00PM -0400, Michael R. Hines wrote:
>> Unmapped virtual addresses cannot be pinned for RDMA (the hardware
>> will break),
>> but there's no way to know they are unmapped without checking
>> another data structure.
> So for RDMA, when you try to register them, this will fault them in.