[PATCH v7 9/9] xen: Add static memory sharing in SUPPORT.md

[Penny Zheng <Penny.Zheng@xxxxxxx>]

on ARM, static memory sharing is tech preview, which shall be documented
in SUPPORT.md

Signed-off-by: Penny Zheng <penny.zheng@xxxxxxx>
---
v7 changes:
- doc refinement
---
v6 change:
- new commit
---
 SUPPORT.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/SUPPORT.md b/SUPPORT.md
index 8e040d1c1e..1979824ce5 100644
--- a/SUPPORT.md
+++ b/SUPPORT.md
@@ -299,6 +299,13 @@ Allow sharing of identical pages between guests
 
     Status, x86 HVM: Experimental
 
+### Static Memory Sharing
+
+Allow to statically set up shared memory on dom0less system,
+enabling domains to do shm-based communication
+
+    Status, ARM: Tech Preview
+
 ### Memory Paging
 
 Allow pages belonging to guests to be paged to disk
-- 
2.25.1