Re: [RFC 1/4] memory: add memory_region_init_io_with_dev interface

[Paolo Bonzini]

On 08/09/20 18:41, Li Qiang wrote:
> Currently the MR is not explicitly connecting with its device instead of
> a opaque. In most situation this opaque is the deivce but it is not an
> enforcement. This patch adds a DeviceState member of to MemoryRegion
> we will use it in later patch.
> 
> Signed-off-by: Li Qiang <liq3ea@163.com>
> ---
>  include/exec/memory.h |  9 +++++++++
>  softmmu/memory.c      | 15 +++++++++++++++
>  2 files changed, 24 insertions(+)
> 
> diff --git a/include/exec/memory.h b/include/exec/memory.h
> index 0cfe987ab4..620fb12d9b 100644
> --- a/include/exec/memory.h
> +++ b/include/exec/memory.h
> @@ -404,6 +404,7 @@ struct MemoryRegion {
>      const char *name;
>      unsigned ioeventfd_nb;
>      MemoryRegionIoeventfd *ioeventfds;
> +    DeviceState *dev;

There is already an owner field for this.

Paolo