s390/sclp: add reset() functions

Add reset() functions for event-facility, sclpconsole, and sclpquiesce.
The reset() functions perform variable initialization
at IPL and e.g. when monitor system_reset is called.

Signed-off-by: Heinz Graalfs <graalfs@linux.vnet.ibm.com>
Reviewed-by: Thomas Huth <thuth@linux.vnet.ibm.com>
Reviewed-by: Alexander Graf <agraf@suse.de>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>

1 files changed, 13 insertions, 4 deletions

diff --git a/hw/char/sclpconsole.c b/hw/char/sclpconsole.c
index 776f284..12488af 100644
--- a/hw/char/sclpconsole.c
+++ b/hw/char/sclpconsole.c
@@ -228,10 +228,6 @@ static int console_init(SCLPEvent *event)
         return -1;
     }
     console_available = true;
-    scon->iov_sclp = 0;
-    scon->iov_bs = 0;
-    scon->iov_data_len = 0;
-    scon->iov_sclp_rest = 0;
     event->event_type = SCLP_EVENT_ASCII_CONSOLE_DATA;
     if (scon->chr) {
         qemu_chr_add_handlers(scon->chr, chr_can_read,
@@ -243,6 +239,18 @@ static int console_init(SCLPEvent *event)
     return 0;
 }
 
+static void console_reset(DeviceState *dev)
+{
+   SCLPEvent *event = SCLP_EVENT(dev);
+   SCLPConsole *scon = DO_UPCAST(SCLPConsole, event, event);
+
+   event->event_pending = false;
+   scon->iov_sclp = 0;
+   scon->iov_bs = 0;
+   scon->iov_data_len = 0;
+   scon->iov_sclp_rest = 0;
+}
+
 static int console_exit(SCLPEvent *event)
 {
     return 0;
@@ -259,6 +267,7 @@ static void console_class_init(ObjectClass *klass, void *data)
     SCLPEventClass *ec = SCLP_EVENT_CLASS(klass);
 
     dc->props = console_properties;
+    dc->reset = console_reset;
     dc->vmsd = &vmstate_sclpconsole;
     ec->init = console_init;
     ec->exit = console_exit;