[Qemu-devel] [PATCH v2] qxl: interface_get_command: fix reported mode

[Alon Levy <alevy@redhat.com>]

report correct mode when in undefined mode.
introduces qxl_mode_to_string, and uses it in another place that looks
helpful (qxl_post_load)
---
 hw/qxl.c |   23 ++++++++++++++++++++---
 1 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/hw/qxl.c b/hw/qxl.c
index e45f33a..e2b07dd 100644
--- a/hw/qxl.c
+++ b/hw/qxl.c
@@ -335,6 +335,21 @@ static void interface_get_init_info(QXLInstance *sin, QXLDevInitInfo *info)
     info->n_surfaces = NUM_SURFACES;
 }
 
+static const char *qxl_mode_to_string(int mode)
+{
+    switch (mode) {
+    case QXL_MODE_COMPAT:
+        return "compat";
+    case QXL_MODE_NATIVE:
+        return "native";
+    case QXL_MODE_UNDEFINED:
+        return "undefined";
+    case QXL_MODE_VGA:
+        return "vga";
+    }
+    return "INVALID";
+}
+
 /* called from spice server thread context only */
 static int interface_get_command(QXLInstance *sin, struct QXLCommandExt *ext)
 {
@@ -357,18 +372,19 @@ static int interface_get_command(QXLInstance *sin, struct QXLCommandExt *ext)
         }
         qemu_mutex_unlock(&qxl->ssd.lock);
         if (ret) {
+            dprint(qxl, 2, "%s %s\n", __FUNCTION__, qxl_mode_to_string(qxl->mode));
             qxl_log_command(qxl, "vga", ext);
         }
         return ret;
     case QXL_MODE_COMPAT:
     case QXL_MODE_NATIVE:
     case QXL_MODE_UNDEFINED:
-        dprint(qxl, 2, "%s: %s\n", __FUNCTION__,
-               qxl->cmdflags ? "compat" : "native");
+        dprint(qxl, 4, "%s: %s\n", __FUNCTION__, qxl_mode_to_string(qxl->mode));
         ring = &qxl->ram->cmd_ring;
         if (SPICE_RING_IS_EMPTY(ring)) {
             return false;
         }
+        dprint(qxl, 2, "%s: %s\n", __FUNCTION__, qxl_mode_to_string(qxl->mode));
         SPICE_RING_CONS_ITEM(ring, cmd);
         ext->cmd      = *cmd;
         ext->group_id = MEMSLOT_GROUP_GUEST;
@@ -1500,7 +1516,8 @@ static int qxl_post_load(void *opaque, int version)
 
     d->modes = (QXLModes*)((uint8_t*)d->rom + d->rom->modes_offset);
 
-    dprint(d, 1, "%s: restore mode\n", __FUNCTION__);
+    dprint(d, 1, "%s: restore mode (%s)\n", __FUNCTION__,
+        qxl_mode_to_string(d->mode));
     newmode = d->mode;
     d->mode = QXL_MODE_UNDEFINED;
     switch (newmode) {
-- 
1.7.5.4