Re: [Qemu-devel] [PATCH v2 1/6] hostmem: make hostmem single, not per Vring related

[Stefan Hajnoczi]

On Fri, May 03, 2013 at 10:45:17AM +0800, Liu Ping Fan wrote:
> diff --git a/include/exec/memory.h b/include/exec/memory.h
> index 9e88320..2761668 100644
> --- a/include/exec/memory.h
> +++ b/include/exec/memory.h
> @@ -887,6 +887,7 @@ void *address_space_map(AddressSpace *as, hwaddr addr,
>  void address_space_unmap(AddressSpace *as, void *buffer, hwaddr len,
>                           int is_write, hwaddr access_len);
>  
> +void hostmem_init(void);

This should go in hostmem.h.  exec.c must now include hostmem.h.

You need to take care of the ./configure dependency: hostmem.o is only
build when CONFIG_VIRTIO_BLK_DATA_PLANE is 'y'.