From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anatoly Burakov Subject: [PATCH v3 0/5] Allow using virtio-user without hugepages Date: Thu, 13 Dec 2018 11:43:14 +0000 Message-ID: References: Cc: przemyslawx.lal@intel.com, kuralamudhan.ramakrishnan@intel.com, ivan.coughlan@intel.com, tiwei.bie@intel.com, ray.kinsella@intel.com, maxime.coquelin@redhat.com To: dev@dpdk.org Return-path: Received: from mga05.intel.com (mga05.intel.com [192.55.52.43]) by dpdk.org (Postfix) with ESMTP id 8F20A2BC7 for ; Thu, 13 Dec 2018 12:43:23 +0100 (CET) In-Reply-To: List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org Sender: "dev" It is already possible to use both DPDK in general and virtio-user specifically, without hugetlbfs mounts, but currently virtio-user cannot be used without hugepage memory (i.e. with a --no-huge EAL switch) due to the fact that it needs to share memory with the backend. This patchset uses memfd to create actual files backing anonymous memory. This enabled virtio-user to work not only without hugetlbfs (which was already possible), but without hugepages altogether, which could be useful in Cloud Native scenarios. v3: - Clarify doc changes v2: - Fixed segment fd list not being initialized - Added some segment fd API fixes - Added unit test for segment fd API Anatoly Burakov (5): mem: fix error code for segment fd API for external segs memalloc: check for memfd support in segment fd API memalloc: allow setting up segment list fd's mem: use memfd for no-huge mode test: add segment fd API test doc/guides/rel_notes/release_19_02.rst | 13 +++++ lib/librte_eal/bsdapp/eal/eal_memalloc.c | 6 ++ lib/librte_eal/common/eal_common_memory.c | 12 ++++ lib/librte_eal/common/eal_memalloc.h | 4 ++ lib/librte_eal/linuxapp/eal/eal_memalloc.c | 66 +++++++++++++++++++--- lib/librte_eal/linuxapp/eal/eal_memory.c | 54 +++++++++++++++++- test/test/test_memory.c | 43 ++++++++++++++ 7 files changed, 188 insertions(+), 10 deletions(-) -- 2.17.1