[PATCH v12 22/27] tools/xenstore: add reading global state for live update

[Juergen Gross <jgross@suse.com>]

Add reading the global state for live update.

Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Julien Grall <jgrall@amazon.com>
Reviewed-by: Paul Durrant <paul@xen.org>
---
 tools/xenstore/xenstored_control.c | 1 +
 tools/xenstore/xenstored_core.c    | 9 +++++++++
 tools/xenstore/xenstored_core.h    | 2 ++
 3 files changed, 12 insertions(+)

diff --git a/tools/xenstore/xenstored_control.c b/tools/xenstore/xenstored_control.c
index 3bced9e39e..d94b558e99 100644
--- a/tools/xenstore/xenstored_control.c
+++ b/tools/xenstore/xenstored_control.c
@@ -536,6 +536,7 @@ void lu_read_state(void)
 	     head = (void *)head + sizeof(*head) + head->length) {
 		switch (head->type) {
 		case XS_STATE_TYPE_GLOBAL:
+			read_state_global(ctx, head + 1);
 			break;
 		case XS_STATE_TYPE_CONN:
 			break;
diff --git a/tools/xenstore/xenstored_core.c b/tools/xenstore/xenstored_core.c
index 4d88aeba3d..60e98104ad 100644
--- a/tools/xenstore/xenstored_core.c
+++ b/tools/xenstore/xenstored_core.c
@@ -2512,6 +2512,15 @@ const char *dump_state_nodes(FILE *fp, const void *ctx)
 	return dump_state_node_tree(fp, path);
 }
 
+void read_state_global(const void *ctx, const void *state)
+{
+	const struct xs_state_global *glb = state;
+
+	sock = glb->socket_fd;
+
+	domain_init(glb->evtchn_fd);
+}
+
 /*
  * Local variables:
  *  mode: C
diff --git a/tools/xenstore/xenstored_core.h b/tools/xenstore/xenstored_core.h
index c7567eaf0b..ac9fe1559e 100644
--- a/tools/xenstore/xenstored_core.h
+++ b/tools/xenstore/xenstored_core.h
@@ -265,6 +265,8 @@ const char *dump_state_node_perms(FILE *fp, struct xs_state_node *sn,
 				  const struct xs_permissions *perms,
 				  unsigned int n_perms);
 
+void read_state_global(const void *ctx, const void *state);
+
 #endif /* _XENSTORED_CORE_H */
 
 /*
-- 
2.26.2