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Re: [Qemu-devel] [PATCH v3 0/9] Add memfd memory backend


From: Daniel P. Berrange
Subject: Re: [Qemu-devel] [PATCH v3 0/9] Add memfd memory backend
Date: Fri, 2 Jun 2017 15:24:45 +0100
User-agent: Mutt/1.8.0 (2017-02-23)

On Fri, Jun 02, 2017 at 06:12:20PM +0400, Marc-André 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 where
libvirt uses hostmem-file.  AFAICT, there's no way to request explicit
huge pages with memfd_create() syscall :-(

Regards,
Daniel
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