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Diffstat (limited to 'hw/qxl.c')
-rw-r--r--hw/qxl.c34
1 files changed, 30 insertions, 4 deletions
diff --git a/hw/qxl.c b/hw/qxl.c
index 6e66021722..28c8b5d0d9 100644
--- a/hw/qxl.c
+++ b/hw/qxl.c
@@ -125,6 +125,16 @@ static void qxl_reset_memslots(PCIQXLDevice *d);
static void qxl_reset_surfaces(PCIQXLDevice *d);
static void qxl_ring_set_dirty(PCIQXLDevice *qxl);
+void qxl_guest_bug(PCIQXLDevice *qxl, const char *msg)
+{
+#if SPICE_INTERFACE_QXL_MINOR >= 1
+ qxl_send_events(qxl, QXL_INTERRUPT_ERROR);
+#endif
+ if (qxl->guestdebug) {
+ fprintf(stderr, "qxl-%d: guest bug: %s\n", qxl->id, msg);
+ }
+}
+
void qxl_spice_update_area(PCIQXLDevice *qxl, uint32_t surface_id,
struct QXLRect *area, struct QXLRect *dirty_rects,
@@ -1091,22 +1101,38 @@ static void ioport_write(void *opaque, uint32_t addr, uint32_t val)
qxl_hard_reset(d, 0);
break;
case QXL_IO_MEMSLOT_ADD:
- PANIC_ON(val >= NUM_MEMSLOTS);
- PANIC_ON(d->guest_slots[val].active);
+ if (val >= NUM_MEMSLOTS) {
+ qxl_guest_bug(d, "QXL_IO_MEMSLOT_ADD: val out of range");
+ break;
+ }
+ if (d->guest_slots[val].active) {
+ qxl_guest_bug(d, "QXL_IO_MEMSLOT_ADD: memory slot already active");
+ break;
+ }
d->guest_slots[val].slot = d->ram->mem_slot;
qxl_add_memslot(d, val, 0);
break;
case QXL_IO_MEMSLOT_DEL:
+ if (val >= NUM_MEMSLOTS) {
+ qxl_guest_bug(d, "QXL_IO_MEMSLOT_DEL: val out of range");
+ break;
+ }
qxl_del_memslot(d, val);
break;
case QXL_IO_CREATE_PRIMARY:
- PANIC_ON(val != 0);
+ if (val != 0) {
+ qxl_guest_bug(d, "QXL_IO_CREATE_PRIMARY: val != 0");
+ break;
+ }
dprint(d, 1, "QXL_IO_CREATE_PRIMARY\n");
d->guest_primary.surface = d->ram->create_surface;
qxl_create_guest_primary(d, 0);
break;
case QXL_IO_DESTROY_PRIMARY:
- PANIC_ON(val != 0);
+ if (val != 0) {
+ qxl_guest_bug(d, "QXL_IO_DESTROY_PRIMARY: val != 0");
+ break;
+ }
dprint(d, 1, "QXL_IO_DESTROY_PRIMARY (%s)\n", qxl_mode_to_string(d->mode));
qxl_destroy_primary(d);
break;