[Xen-devel] [PATCH] xen: Emit RTC_CHANGE upon TIMEOFFSET ioreq

[Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>]

When the guest writes to the RTC, Xen emulates it and broadcasts a
TIMEOFFSET ioreq. Emit an RTC_CHANGE QMP message when this happens
rather than ignoring it so that something useful can be done with the
information.

Signed-off-by: Ross Lagerwall <ross.lagerwall@xxxxxxxxxx>
---
 hw/i386/xen/xen-hvm.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/hw/i386/xen/xen-hvm.c b/hw/i386/xen/xen-hvm.c
index d9ccd5d..ffd20dc 100644
--- a/hw/i386/xen/xen-hvm.c
+++ b/hw/i386/xen/xen-hvm.c
@@ -16,6 +16,7 @@
 #include "hw/i386/apic-msidef.h"
 #include "hw/xen/xen_common.h"
 #include "hw/xen/xen_backend.h"
+#include "qapi-event.h"
 #include "qmp-commands.h"
 
 #include "qemu/error-report.h"
@@ -967,6 +968,7 @@ static void handle_ioreq(XenIOState *state, ioreq_t *req)
             handle_vmport_ioreq(state, req);
             break;
         case IOREQ_TYPE_TIMEOFFSET:
+            qapi_event_send_rtc_change((int64_t)req->data, &error_abort);
             break;
         case IOREQ_TYPE_INVALIDATE:
             xen_invalidate_map_cache();
-- 
2.9.5


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