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-rw-r--r--hw/nvram/fw_cfg.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/hw/nvram/fw_cfg.c b/hw/nvram/fw_cfg.c
index c48bc6e650..8deb860fad 100644
--- a/hw/nvram/fw_cfg.c
+++ b/hw/nvram/fw_cfg.c
@@ -31,7 +31,6 @@
 #include "qemu/config-file.h"
 
 #define FW_CFG_SIZE 2
-#define FW_CFG_DATA_SIZE 1
 #define FW_CFG_NAME "fw_cfg"
 #define FW_CFG_PATH "/machine/" FW_CFG_NAME
 
@@ -694,7 +693,8 @@ static void fw_cfg_mem_realize(DeviceState *dev, Error **errp)
     sysbus_init_mmio(sbd, &s->ctl_iomem);
 
     memory_region_init_io(&s->data_iomem, OBJECT(s), &fw_cfg_data_mem_ops,
-                          FW_CFG(s), "fwcfg.data", FW_CFG_DATA_SIZE);
+                          FW_CFG(s), "fwcfg.data",
+                          fw_cfg_data_mem_ops.valid.max_access_size);
     sysbus_init_mmio(sbd, &s->data_iomem);
 }