[PATCH] tools/libs/light: update xenstore entry when setting max domain memory

[Juergen Gross <jgross@xxxxxxxx>]

libxl_domain_setmaxmem() should update the domain's memory/static-max
Xenstore node, as otherwise "xl mem-set" won't be able to set the
memory size to the new maximum.

Signed-off-by: Juergen Gross <jgross@xxxxxxxx>
---
 tools/libs/light/libxl_mem.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tools/libs/light/libxl_mem.c b/tools/libs/light/libxl_mem.c
index c739d00f39..2f4f9d4a4a 100644
--- a/tools/libs/light/libxl_mem.c
+++ b/tools/libs/light/libxl_mem.c
@@ -82,6 +82,15 @@ int libxl_domain_setmaxmem(libxl_ctx *ctx, uint32_t domid, 
uint64_t max_memkb)
         goto out;
     }
 
+    rc = libxl__xs_printf(gc, XBT_NULL,
+                          GCSPRINTF("%s/memory/static-max", dompath),
+                          "%"PRIu64, max_memkb);
+    if (rc != 0) {
+        LOGED(ERROR, domid, "Couldn't set %s/memory/static-max, rc=%d\n",
+              dompath, rc);
+        goto out;
+    }
+
     rc = 0;
 out:
     libxl_domain_config_dispose(&d_config);
-- 
2.34.1