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-rw-r--r--net/colo-compare.c39
1 files changed, 39 insertions, 0 deletions
diff --git a/net/colo-compare.c b/net/colo-compare.c
index 10fae2b..fda55d5 100644
--- a/net/colo-compare.c
+++ b/net/colo-compare.c
@@ -87,8 +87,10 @@ typedef struct CompareState {
CharBackend chr_pri_in;
CharBackend chr_sec_in;
CharBackend chr_out;
+ CharBackend chr_notify_dev;
SocketReadState pri_rs;
SocketReadState sec_rs;
+ SocketReadState notify_rs;
bool vnet_hdr;
/*
@@ -745,6 +747,19 @@ static void compare_sec_chr_in(void *opaque, const uint8_t *buf, int size)
}
}
+static void compare_notify_chr(void *opaque, const uint8_t *buf, int size)
+{
+ CompareState *s = COLO_COMPARE(opaque);
+ int ret;
+
+ ret = net_fill_rstate(&s->notify_rs, buf, size);
+ if (ret == -1) {
+ qemu_chr_fe_set_handlers(&s->chr_notify_dev, NULL, NULL, NULL, NULL,
+ NULL, NULL, true);
+ error_report("colo-compare notify_dev error");
+ }
+}
+
/*
* Check old packet regularly so it can watch for any packets
* that the secondary hasn't produced equivalents of.
@@ -832,6 +847,11 @@ static void colo_compare_iothread(CompareState *s)
qemu_chr_fe_set_handlers(&s->chr_sec_in, compare_chr_can_read,
compare_sec_chr_in, NULL, NULL,
s, s->worker_context, true);
+ if (s->notify_dev) {
+ qemu_chr_fe_set_handlers(&s->chr_notify_dev, compare_chr_can_read,
+ compare_notify_chr, NULL, NULL,
+ s, s->worker_context, true);
+ }
colo_compare_timer_init(s);
s->event_bh = qemu_bh_new(colo_compare_handle_event, s);
@@ -943,6 +963,10 @@ static void compare_sec_rs_finalize(SocketReadState *sec_rs)
}
}
+static void compare_notify_rs_finalize(SocketReadState *notify_rs)
+{
+ /* Get Xen colo-frame's notify and handle the message */
+}
/*
* Return 0 is success.
@@ -1013,6 +1037,17 @@ static void colo_compare_complete(UserCreatable *uc, Error **errp)
net_socket_rs_init(&s->pri_rs, compare_pri_rs_finalize, s->vnet_hdr);
net_socket_rs_init(&s->sec_rs, compare_sec_rs_finalize, s->vnet_hdr);
+ /* Try to enable remote notify chardev, currently just for Xen COLO */
+ if (s->notify_dev) {
+ if (find_and_check_chardev(&chr, s->notify_dev, errp) ||
+ !qemu_chr_fe_init(&s->chr_notify_dev, chr, errp)) {
+ return;
+ }
+
+ net_socket_rs_init(&s->notify_rs, compare_notify_rs_finalize,
+ s->vnet_hdr);
+ }
+
QTAILQ_INSERT_TAIL(&net_compares, s, next);
g_queue_init(&s->conn_list);
@@ -1091,6 +1126,10 @@ static void colo_compare_finalize(Object *obj)
qemu_chr_fe_deinit(&s->chr_pri_in, false);
qemu_chr_fe_deinit(&s->chr_sec_in, false);
qemu_chr_fe_deinit(&s->chr_out, false);
+ if (s->notify_dev) {
+ qemu_chr_fe_deinit(&s->chr_notify_dev, false);
+ }
+
if (s->iothread) {
colo_compare_timer_del(s);
}