From: Michael Galaxy <mgalaxy(a)akamai.com>
Signed-off-by: Michael Galaxy <mgalaxy(a)akamai.com>
---
docs/kbase/virtiofs.rst | 2 ++
src/qemu/qemu.conf.in | 4 ++++
2 files changed, 6 insertions(+)
diff --git a/docs/kbase/virtiofs.rst b/docs/kbase/virtiofs.rst
index 457c15da7f..931ba96104 100644
--- a/docs/kbase/virtiofs.rst
+++ b/docs/kbase/virtiofs.rst
@@ -144,6 +144,8 @@ memobject interface).
# This directory is used for memoryBacking source if configured as file.
# NOTE: big files will be stored here
+ # NOTE: In the case of a NUMA-aware system (such has shm/tmpfs or PMEM),
+ # one can also do: memory_backing_dir = [ "/path/to/node/0",
"/path/to/node/1" ]
memory_backing_dir = "/dev/shm/"
* Use hugepage-backed memory
diff --git a/src/qemu/qemu.conf.in b/src/qemu/qemu.conf.in
index 6bc2140dcb..3c52de0192 100644
--- a/src/qemu/qemu.conf.in
+++ b/src/qemu/qemu.conf.in
@@ -897,6 +897,10 @@
# This directory is used for memoryBacking source if configured as file.
# NOTE: big files will be stored here
+# NOTE: In the case of a NUMA-aware system (such has shm/tmpfs or PMEM),
+# one can also do: memory_backing_dir = [ "/path/to/node/0",
"/path/to/node/1" ]
+# Be advised that the number of backing directories needs to match
+# the number of NUMA nodes on the system.
#memory_backing_dir = "/var/lib/libvirt/qemu/ram"
# Path to the SCSI persistent reservations helper. This helper is
--
2.34.1