diff --git a/hostcheckstop/host_checkstop_obj.c b/hostcheckstop/host_checkstop_obj.c
new file mode 100644
index 0000000..0d6d736
--- /dev/null
+++ b/hostcheckstop/host_checkstop_obj.c
@@ -0,0 +1,202 @@
+#include "interfaces/openbmc_intf.h"
+#include "openbmc.h"
+#include "gpio.h"
+
+static const gchar* dbus_object_path = "/org/openbmc/control";
+static const gchar* object_name = "/org/openbmc/control/checkstop0";
+static const gchar* dbus_name = "org.openbmc.control.Checkstop";
+
+static GDBusObjectManagerServer *manager = NULL;
+
+GPIO checkstop = (GPIO){ "CHECKSTOP" };
+
+static bool
+is_host_booted(GDBusConnection* connection)
+{
+    GDBusProxy *proxy;
+    GError *error;
+    GVariant *parm = NULL;
+    GVariant *result = NULL;
+
+    error = NULL;
+    proxy = g_dbus_proxy_new_sync(connection,
+            G_DBUS_PROXY_FLAGS_NONE,
+            NULL, /* GDBusInterfaceInfo* */
+            "org.openbmc.managers.System", /* name */
+            "/org/openbmc/managers/System", /* object path */
+            "org.openbmc.managers.System", /* interface name */
+            NULL, /* GCancellable */
+            &error);
+    g_assert_no_error(error);
+
+    error = NULL;
+    result = g_dbus_proxy_call_sync(proxy,
+            "getSystemState",
+            parm,
+            G_DBUS_CALL_FLAGS_NONE,
+            -1,
+            NULL,
+            &error);
+    g_assert_no_error(error);
+
+    gchar *system_state;
+    g_variant_get(result,"(s)",&system_state);
+    g_variant_unref(result);
+
+    if ((strcmp(system_state, "HOST_BOOTED") == 0) ||
+        (strcmp(system_state, "HOST_BOOTING")== 0)) {
+        return true;
+    }
+
+    return false;
+}
+
+static gboolean
+chassis_reboot(gpointer connection)
+{
+    int rc = 0;
+    uint8_t gpio = 0;
+    GDBusProxy *proxy;
+    GError *error;
+    GVariant *parm = NULL;
+    GVariant *result = NULL;
+
+    // The gpio line may flicker during power on/off, so check that the value
+    // is still 0 (checkstopped) and that host is booted in order to reboot
+    rc = gpio_open(&checkstop);
+    if (rc != GPIO_OK) {
+        return FALSE;
+    }
+    rc = gpio_read(&checkstop, &gpio);
+    if (rc != GPIO_OK) {
+        gpio_close(&checkstop);
+        return FALSE;
+    }
+    gpio_close(&checkstop);
+    if ((!gpio) && (is_host_booted(connection)))
+    {
+        printf("Host Checkstop, rebooting host\n");
+        error = NULL;
+        proxy = g_dbus_proxy_new_sync((GDBusConnection*)connection,
+            G_DBUS_PROXY_FLAGS_NONE,
+            NULL, /* GDBusInterfaceInfo* */
+            "org.openbmc.control.Chassis", /* name */
+            "/org/openbmc/control/chassis0", /* object path */
+            "org.openbmc.control.Chassis", /* interface name */
+            NULL, /* GCancellable */
+            &error);
+        g_assert_no_error(error);
+
+        error = NULL;
+        result = g_dbus_proxy_call_sync(proxy,
+            "reboot",
+            parm,
+            G_DBUS_CALL_FLAGS_NONE,
+            -1,
+            NULL,
+            &error);
+        g_assert_no_error(error);
+    }
+
+    return FALSE;
+}
+
+static gboolean
+on_checkstop_interrupt(GIOChannel *channel,
+        GIOCondition condition,
+        gpointer connection)
+{
+    GError *error = 0;
+    gsize bytes_read = 0;
+    gchar buf[2];
+    buf[1] = '\0';
+
+    g_io_channel_seek_position( channel, 0, G_SEEK_SET, 0 );
+    g_io_channel_read_chars(channel,
+            buf, 1,
+            &bytes_read,
+            &error );
+    printf("checkstop gpio: %s\n",buf);
+
+    if(checkstop.irq_inited) {
+        // Need to wait at least 10s for the SBE to gather failure data.
+        // Also the user may be monitoring the system and reset the system
+        // themselves. So wait an arbitrary time of 30s (and check that the
+        // gpio value is still 0) before issuing reboot.
+        g_timeout_add(30000, chassis_reboot, connection);
+    }
+    else {
+        checkstop.irq_inited = true;
+    }
+
+    return TRUE;
+}
+
+static void
+on_bus_acquired(GDBusConnection *connection,
+        const gchar *name,
+        gpointer object)
+{
+    int rc = GPIO_OK;
+    manager = g_dbus_object_manager_server_new(dbus_object_path);
+
+    ControlCheckstop* control_checkstop = control_checkstop_skeleton_new();
+    object_skeleton_set_control_checkstop(object, control_checkstop);
+    g_object_unref(control_checkstop);
+
+    g_dbus_object_manager_server_set_connection(manager, connection);
+
+    rc = gpio_init(connection, &checkstop);
+    if (rc == GPIO_OK) {
+        rc = gpio_open_interrupt(&checkstop, on_checkstop_interrupt, connection);
+    }
+    if (rc != GPIO_OK) {
+        printf("ERROR Checkstop: GPIO setup (rc=%d)\n", rc);
+    }
+}
+
+static void
+on_name_acquired(GDBusConnection *connection,
+        const gchar *name,
+        gpointer object)
+{
+    g_dbus_object_manager_server_export(manager, G_DBUS_OBJECT_SKELETON(object));
+}
+
+static void
+on_name_lost(GDBusConnection *connection,
+        const gchar *name,
+        gpointer object)
+{
+    g_dbus_object_manager_server_unexport(manager, dbus_object_path);
+}
+
+gint
+main(gint argc, gchar *argv[])
+{
+    GMainLoop *loop;
+    ObjectSkeleton *newobject;
+
+    newobject = object_skeleton_new(object_name);
+
+    guint id;
+    loop = g_main_loop_new(NULL, FALSE);
+
+    id = g_bus_own_name(DBUS_TYPE,
+            dbus_name,
+            G_BUS_NAME_OWNER_FLAGS_ALLOW_REPLACEMENT |
+            G_BUS_NAME_OWNER_FLAGS_REPLACE,
+            on_bus_acquired,
+            on_name_acquired,
+            on_name_lost,
+            newobject,
+            NULL);
+
+    g_main_loop_run(loop);
+
+    g_bus_unown_name(id);
+    g_object_unref(newobject);
+    g_main_loop_unref(loop);
+    return 0;
+}
+