[xen staging] xen: Add static memory sharing in SUPPORT.md

[patchbot@xxxxxxx]

commit 826956157d52ebf6b926eef70d8bb3b849de8e08
Author:     Penny Zheng <Penny.Zheng@xxxxxxx>
AuthorDate: Thu Sep 8 21:55:13 2022 +0800
Commit:     Stefano Stabellini <stefano.stabellini@xxxxxxx>
CommitDate: Fri Sep 9 13:00:10 2022 -0700

    xen: Add static memory sharing in SUPPORT.md
    
    on ARM, static memory sharing is tech preview, which shall be documented
    in SUPPORT.md
    
    Signed-off-by: Penny Zheng <penny.zheng@xxxxxxx>
    Reviewed-by: Michal Orzel <michal.orzel@xxxxxxx>
    Acked-by: Julien Grall <jgrall@xxxxxxxxxx>
---
 SUPPORT.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/SUPPORT.md b/SUPPORT.md
index b02a5d25ca..8ebd63ad82 100644
--- a/SUPPORT.md
+++ b/SUPPORT.md
@@ -306,6 +306,13 @@ 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
--
generated by git-patchbot for /home/xen/git/xen.git#staging