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Date: Fri, 2 Jun 2017 15:24:45 +0100
From: "Daniel P. Berrange" <berrange@redhat.com>
Message-ID: <20170602142445.GD11096@redhat.com>
Reply-To: "Daniel P. Berrange" <berrange@redhat.com>
References: <20170602141229.15326-1-marcandre.lureau@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH v3 0/9] Add memfd memory backend
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To: =?utf-8?Q?Marc-Andr=C3=A9?= Lureau <marcandre.lureau@redhat.com>
Cc: qemu-devel@nongnu.org, imammedo@redhat.com, ehabkost@redhat.com

On Fri, Jun 02, 2017 at 06:12:20PM +0400, Marc-Andr=C3=A9 Lureau wrote:
> Add a new Linux-specific memory backend, similar to hostmem-file,
> except that it doesn't need file path. It also try to enforce memory
> sealing if available. It is thus slightly easier and secure, and is
> compatible with transparent huge-pages since Linux 4.8.

What about explicit huge pages ?  They are the key scenario scenario wher=
e
libvirt uses hostmem-file.  AFAICT, there's no way to request explicit
huge pages with memfd_create() syscall :-(

Regards,
Daniel
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