diff --git a/src/video/nv/nv4/nv4_core_io.c b/src/video/nv/nv4/nv4_core_io.c
index a7fe0d0c8..87614b8c2 100644
--- a/src/video/nv/nv4/nv4_core_io.c
+++ b/src/video/nv/nv4/nv4_core_io.c
@@ -44,12 +44,12 @@ void nv4_svga_write(uint16_t addr, uint8_t val, void* priv);
 
 uint32_t nv4_mmio_arbitrate_read(uint32_t addr)
 {
-
+    nv_log_verbose_only("MMIO read from address=0x%08x", addr);
 }
 
 void nv4_mmio_arbitrate_write(uint32_t addr, uint32_t val)
 {
-
+    nv_log_verbose_only("MMIO write to address=0x%08x value %08x", addr, val);
 }
 
 // Determine if this address needs to be redirected to the SVGA subsystem.