From: Philippe Mathieu-Daudé <philmd@redhat.com>

Avoid to clutter stdout until explicitly requested (with -d unimp):

  $ qemu-system-mips64el -M fulong2e -bios pmon_2e.bin
  dma: command df not supported
  dma: command df not supported
  dma: command df not supported
  dma: command df not supported

Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Message-Id: <20190212145322.30974-1-philmd@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
---
 hw/dma/i8257.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/hw/dma/i8257.c b/hw/dma/i8257.c
index 52675e97c9e7..3e1f13a4aaf4 100644
--- a/hw/dma/i8257.c
+++ b/hw/dma/i8257.c
@@ -26,6 +26,7 @@
 #include "hw/isa/isa.h"
 #include "hw/dma/i8257.h"
 #include "qemu/main-loop.h"
+#include "qemu/log.h"
 #include "trace.h"
 
 #define I8257(obj) \
@@ -185,7 +186,8 @@ static void i8257_write_cont(void *opaque, hwaddr nport, uint64_t data,
     switch (iport) {
     case 0x00:                  /* command */
         if ((data != 0) && (data & CMD_NOT_SUPPORTED)) {
-            dolog("command %"PRIx64" not supported\n", data);
+            qemu_log_mask(LOG_UNIMP, "%s: cmd 0x%02"PRIx64" not supported\n",
+                          __func__, data);
             return;
         }
         d->command = data;
-- 
2.20.1