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fw_cfg_mem: max access size and region size are the same for data register

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Make it clear that the maximum access size to the MMIO data register
determines the full size of the memory region.

Currently the max access size is 1.

This patch doesn't change behavior.

Signed-off-by: Laszlo Ersek <lersek@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Message-id: 1419250305-31062-4-git-send-email-pbonzini@redhat.com
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
This commit is contained in:
Laszlo Ersek 2014-12-22 13:11:37 +01:00 committed by Peter Maydell
parent 66708822cd
commit 86099db382
1 changed files with 2 additions and 2 deletions
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4
hw/nvram/fw_cfg.c
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@ -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);
}