From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55864) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1dNgDF-0005C6-VR for qemu-devel@nongnu.org; Wed, 21 Jun 2017 10:02:34 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1dNgDB-0004XP-37 for qemu-devel@nongnu.org; Wed, 21 Jun 2017 10:02:30 -0400 Received: from mx1.redhat.com ([209.132.183.28]:44130) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1dNgDA-0004X7-Tn for qemu-devel@nongnu.org; Wed, 21 Jun 2017 10:02:25 -0400 Received: from smtp.corp.redhat.com (int-mx03.intmail.prod.int.phx2.redhat.com [10.5.11.13]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id F272685376 for ; Wed, 21 Jun 2017 14:02:22 +0000 (UTC) From: =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= Date: Wed, 21 Jun 2017 16:02:16 +0200 Message-Id: <20170621140219.4568-1-marcandre.lureau@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable Subject: [Qemu-devel] [PATCH v4 0/3] Add memfd memory backend List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: imammedo@redhat.com, ehabkost@redhat.com, =?UTF-8?q?Marc-Andr=C3=A9=20Lureau?= 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. v4: - rebased, now that preliminary patches are merged v3: - make vhost-user-test use memfd only if possible - rebased v1->v2: - make it linux-specific - minor changes and commit message tweaks Marc-Andr=C3=A9 Lureau (3): memfd: split qemu_memfd_alloc() Add memfd based hostmem tests: use memfd in vhost-user-test include/qemu/memfd.h | 2 ++ backends/hostmem-memfd.c | 67 ++++++++++++++++++++++++++++++++++++++++++= +++++ tests/vhost-user-test.c | 68 +++++++++++++++++++++++++++++++-----------= ------ util/memfd.c | 42 ++++++++++++++++++------------ backends/Makefile.objs | 2 ++ qemu-options.hx | 11 ++++++++ 6 files changed, 151 insertions(+), 41 deletions(-) create mode 100644 backends/hostmem-memfd.c --=20 2.13.1.395.gf7b71de06