[dpdk-dev] [PATCH v3 0/5] Allow using virtio-user without hugepages
Anatoly Burakov
anatoly.burakov at intel.com
Thu Dec 13 12:43:14 CET 2018
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
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