Re: [libvirt] [RFC v2 02/16] qemu: add memfd memory backing

From: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; Add a new memoryBacking source type "memfd", support by QEMU (when the capability is available). Sealing is enabled by default in qemu, and hugepage is easier to setup, which makes it often a better choice than memory-backend-file. Signed-off-by: Marc-André Lureau <marcandre.lureau(a)redhat.com&gt; --- docs/formatdomain.html.in | 8 ++- docs/schemas/domaincommon.rng | 1 + src/conf/domain_conf.c | 3 +- src/conf/domain_conf.h | 1 + src/qemu/qemu_command.c | 62 +++++++++++++------ tests/qemuxml2argvdata/memfd-memory-numa.args | 27 ++++++++ tests/qemuxml2argvdata/memfd-memory-numa.xml | 33 ++++++++++ tests/qemuxml2argvtest.c | 3 + 8 files changed, 116 insertions(+), 22 deletions(-) create mode 100644 tests/qemuxml2argvdata/memfd-memory-numa.args create mode 100644 tests/qemuxml2argvdata/memfd-memory-numa.xml diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index eb619a1656..ca656c9f7e 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -1099,7 +1099,7 @@ &lt;/hugepages&gt; &lt;nosharepages/&gt; &lt;locked/&gt; - &lt;source type="file|anonymous"/&gt; + &lt;source type="file|anonymous|memfd"/&gt;