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Re: [Qemu-devel] [PATCH V8 1/4] mem: add share parameter to memory-backe


From: Eduardo Habkost
Subject: Re: [Qemu-devel] [PATCH V8 1/4] mem: add share parameter to memory-backend-ram
Date: Thu, 1 Feb 2018 14:31:32 -0200
User-agent: Mutt/1.9.1 (2017-09-22)

On Thu, Feb 01, 2018 at 04:24:30PM +0200, Michael S. Tsirkin wrote:
[...]
> The full fix would be to allow QEMU to map a list of
> pages to a guest supplied IOVA.

Thanks, that's what I expected.

While this is not possible, the only requests I have for this
patch is that we clearly document:
* What's the only purpose of share=on on a host-memory-backend
  object (due to pvrdma limitations).
* The potential undesirable side-effects of setting share=on.
* On the commit message and other comments, clearly distinguish
  HVAs in the QEMU address-space from IOVAs, to avoid confusion.

-- 
Eduardo



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