On 13-Dec-18 11:43 AM, Anatoly Burakov wrote:
When running in no-huge mode, we anonymously allocate our memory. While this works for regular NICs and vdev's, it's not suitable for memory sharing scenarios such as virtio with vhost_user backend.To fix this, allocate no-huge memory using memfd, and register it with memalloc just like any other memseg fd. This will enable using rte_memseg_get_fd() API with --no-huge EAL flag. Signed-off-by: Anatoly Burakov <anatoly.bura...@intel.com> Acked-by: Tiwei Bie <tiwei....@intel.com> --- Notes: v3: - Clarify release notes to state that the changes apply to virtio-user NICs rather than virtio in generalv2:- Detect memfd support at compile time - Change memfd-related log level to debug doc/guides/rel_notes/release_19_02.rst | 5 +++ lib/librte_eal/linuxapp/eal/eal_memory.c | 54 +++++++++++++++++++++++- 2 files changed, 57 insertions(+), 2 deletions(-) diff --git a/doc/guides/rel_notes/release_19_02.rst b/doc/guides/rel_notes/release_19_02.rst index 960098582..f733ad139 100644 --- a/doc/guides/rel_notes/release_19_02.rst +++ b/doc/guides/rel_notes/release_19_02.rst @@ -23,6 +23,11 @@ DPDK Release 19.02 New Features ------------+* **Support for using VirtIO without hugepages**
^^ oops, forgot to fix the title... Should be virtio-user. -- Thanks, Anatoly
