xen: Move xenstore_update to xen_pvdev.c

 * xenstore_update -> xen_pvdev.c
Signed-off-by: NEmil Condrea <emilcondrea@gmail.com>
Signed-off-by: NStefano Stabellini <sstabellini@kernel.org>
Signed-off-by: NQuan Xu <xuquan8@huawei.com>
Acked-by: NAnthony PERARD <anthony.perard@citrix.com>

hw/xen/xen_backend.c

@@ -556,8 +556,8 @@ static int xenstore_scan(const char *type, int dom, struct XenDevOps *ops)
     return 0;
 }
 
-static void xenstore_update_be(char *watch, char *type, int dom,
-                               struct XenDevOps *ops)
+void xenstore_update_be(char *watch, char *type, int dom,
+                        struct XenDevOps *ops)
 {
     struct XenDevice *xendev;
     char path[XEN_BUFSIZE], *bepath;
@@ -590,7 +590,7 @@ static void xenstore_update_be(char *watch, char *type, int dom,
     }
 }
 
-static void xenstore_update_fe(char *watch, struct XenDevice *xendev)
+void xenstore_update_fe(char *watch, struct XenDevice *xendev)
 {
     char *node;
     unsigned int len;
@@ -607,30 +607,6 @@ static void xenstore_update_fe(char *watch, struct XenDevice *xendev)
     xen_be_frontend_changed(xendev, node);
     xen_be_check_state(xendev);
 }
-
-static void xenstore_update(void *unused)
-{
-    char **vec = NULL;
-    intptr_t type, ops, ptr;
-    unsigned int dom, count;
-
-    vec = xs_read_watch(xenstore, &count);
-    if (vec == NULL) {
-        goto cleanup;
-    }
-
-    if (sscanf(vec[XS_WATCH_TOKEN], "be:%" PRIxPTR ":%d:%" PRIxPTR,
-               &type, &dom, &ops) == 3) {
-        xenstore_update_be(vec[XS_WATCH_PATH], (void *)type, dom, (void*)ops);
-    }
-    if (sscanf(vec[XS_WATCH_TOKEN], "fe:%" PRIxPTR, &ptr) == 1) {
-        xenstore_update_fe(vec[XS_WATCH_PATH], (void *)ptr);
-    }
-
-cleanup:
-    free(vec);
-}
-
 static void xen_be_evtchn_event(void *opaque)
 {
     struct XenDevice *xendev = opaque;

hw/xen/xen_pvdev.c

@@ -95,6 +95,29 @@ int xenstore_read_uint64(const char *base, const char *node, uint64_t *uval)
     return rc;
 }
 
+void xenstore_update(void *unused)
+{
+    char **vec = NULL;
+    intptr_t type, ops, ptr;
+    unsigned int dom, count;
+
+    vec = xs_read_watch(xenstore, &count);
+    if (vec == NULL) {
+        goto cleanup;
+    }
+
+    if (sscanf(vec[XS_WATCH_TOKEN], "be:%" PRIxPTR ":%d:%" PRIxPTR,
+               &type, &dom, &ops) == 3) {
+        xenstore_update_be(vec[XS_WATCH_PATH], (void *)type, dom, (void*)ops);
+    }
+    if (sscanf(vec[XS_WATCH_TOKEN], "fe:%" PRIxPTR, &ptr) == 1) {
+        xenstore_update_fe(vec[XS_WATCH_PATH], (void *)ptr);
+    }
+
+cleanup:
+    free(vec);
+}
+
 const char *xenbus_strstate(enum xenbus_state state)
 {
     static const char *const name[] = {

include/hw/xen/xen_backend.h

@@ -19,6 +19,9 @@ int xenstore_write_be_int(struct XenDevice *xendev, const char *node, int ival);
 int xenstore_write_be_int64(struct XenDevice *xendev, const char *node, int64_t ival);
 char *xenstore_read_be_str(struct XenDevice *xendev, const char *node);
 int xenstore_read_be_int(struct XenDevice *xendev, const char *node, int *ival);
+void xenstore_update_fe(char *watch, struct XenDevice *xendev);
+void xenstore_update_be(char *watch, char *type, int dom,
+                        struct XenDevOps *ops);
 char *xenstore_read_fe_str(struct XenDevice *xendev, const char *node);
 int xenstore_read_fe_int(struct XenDevice *xendev, const char *node, int *ival);
 int xenstore_read_fe_uint64(struct XenDevice *xendev, const char *node,

include/hw/xen/xen_pvdev.h

@@ -60,6 +60,7 @@ int xenstore_write_int64(const char *base, const char *node, int64_t ival);
 char *xenstore_read_str(const char *base, const char *node);
 int xenstore_read_int(const char *base, const char *node, int *ival);
 int xenstore_read_uint64(const char *base, const char *node, uint64_t *uval);
+void xenstore_update(void *unused);
 
 const char *xenbus_strstate(enum xenbus_state state);