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Re: [PATCH REPOST v3 78/80] hostmem: fix strict bind policy

From: Halil Pasic
Subject: Re: [PATCH REPOST v3 78/80] hostmem: fix strict bind policy
Date: Fri, 24 Jan 2020 20:17:48 +0100

On Thu, 23 Jan 2020 12:38:43 +0100
Igor Mammedov <address@hidden> wrote:

> With main RAM now converted to hostmem backends, there is no
> point in keeping global mem_prealloc around, so alias
>  -mem-prealloc to "memory-backend.prealloc=on"
> machine compat[*] property and make mem_prealloc a local
> variable to only stir registration of compat property.
> *) currently user accessible -global works only with DEVICE
>    based objects and extra work is needed to make it work
>    with hostmem backends. But that is convenience option
>    and out of scope of this already huge refactoring.
>    Hence machine compat properties were used.

AFAIU because of this something like
-global memory-backend-file.share=on
(as proposed by
can not be used to make the main RAM shared (e.g. for vhost on s390x).
Or am I wrong? If not, is -global still the way we want to make this work
for non-numa machines, or did I miss updates?


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