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-rw-r--r--hw/display/qxl.c9
-rw-r--r--hw/usb/hcd-xhci.c4
-rw-r--r--util/module.c3
3 files changed, 14 insertions, 2 deletions
diff --git a/hw/display/qxl.c b/hw/display/qxl.c
index d5627119ec..11871340e7 100644
--- a/hw/display/qxl.c
+++ b/hw/display/qxl.c
@@ -1762,7 +1762,16 @@ async_common:
         qxl_set_mode(d, val, 0);
         break;
     case QXL_IO_LOG:
+#ifdef CONFIG_MODULES
+        /*
+         * FIXME
+         * trace_event_get_state_backends() does not work for modules,
+         * it leads to "undefined symbol: qemu_qxl_io_log_semaphore"
+         */
+        if (true) {
+#else
         if (trace_event_get_state_backends(TRACE_QXL_IO_LOG) || d->guestdebug) {
+#endif
             /* We cannot trust the guest to NUL terminate d->ram->log_buf */
             char *log_buf = g_strndup((const char *)d->ram->log_buf,
                                       sizeof(d->ram->log_buf));
diff --git a/hw/usb/hcd-xhci.c b/hw/usb/hcd-xhci.c
index b330e36fe6..67a18fe2b6 100644
--- a/hw/usb/hcd-xhci.c
+++ b/hw/usb/hcd-xhci.c
@@ -3184,7 +3184,7 @@ static const MemoryRegionOps xhci_oper_ops = {
     .read = xhci_oper_read,
     .write = xhci_oper_write,
     .valid.min_access_size = 4,
-    .valid.max_access_size = 4,
+    .valid.max_access_size = sizeof(dma_addr_t),
     .endianness = DEVICE_LITTLE_ENDIAN,
 };
 
@@ -3200,7 +3200,7 @@ static const MemoryRegionOps xhci_runtime_ops = {
     .read = xhci_runtime_read,
     .write = xhci_runtime_write,
     .valid.min_access_size = 4,
-    .valid.max_access_size = 4,
+    .valid.max_access_size = sizeof(dma_addr_t),
     .endianness = DEVICE_LITTLE_ENDIAN,
 };
 
diff --git a/util/module.c b/util/module.c
index 90e9bd42c6..0ab00851f0 100644
--- a/util/module.c
+++ b/util/module.c
@@ -275,6 +275,9 @@ void module_load_qom_one(const char *type)
 {
     int i;
 
+    if (!type) {
+        return;
+    }
     if (module_loaded_qom_all) {
         return;
     }