diff --git a/hw/loongarch/virt.c b/hw/loongarch/virt.c
index 49434ad182..b59645be54 100644
--- a/hw/loongarch/virt.c
+++ b/hw/loongarch/virt.c
@@ -46,6 +46,7 @@
 #include "hw/block/flash.h"
 #include "hw/virtio/virtio-iommu.h"
 #include "qemu/error-report.h"
+#include "qemu/log.h"
 #include "kvm/kvm_loongarch.h"
 
 static void virt_get_dmsi(Object *obj, Visitor *v, const char *name,
@@ -621,8 +622,15 @@ static MemTxResult virt_iocsr_misc_write(void *opaque, hwaddr addr,
                           EXTIOI_VIRT_BASE + EXTIOI_VIRT_CONFIG,
                           features, attrs, NULL);
         break;
+    case VERSION_REG:
+    case FEATURE_REG:
+    case VENDOR_REG:
+    case CPUNAME_REG:
+        break;
     default:
-        g_assert_not_reached();
+        qemu_log_mask(LOG_UNIMP, "%s: Unimplemented IOCSR 0x%" HWADDR_PRIx "\n",
+                      __func__, addr);
+        break;
     }
 
     return MEMTX_OK;
@@ -680,7 +688,9 @@ static MemTxResult virt_iocsr_misc_read(void *opaque, hwaddr addr,
         }
         break;
     default:
-        g_assert_not_reached();
+        qemu_log_mask(LOG_UNIMP, "%s: Unimplemented IOCSR 0x%" HWADDR_PRIx "\n",
+                      __func__, addr);
+        break;
     }
 
     *data = ret;