Re: [Qemu-devel] [PATCH 3/4] tests: fw_cfg: add reboot_timeout test case

[Gerd Hoffmann]

On Wed, Apr 24, 2019 at 09:16:56AM +0800, Li Qiang wrote:
> Thomas Huth <address@hidden> 于2019年4月24日周三 上午12:29写道：
> 
> > Is this endianess-safe? Or do you need to byteswap reboot_timeout if the
> > host and guest endianess does not match?
> 
> Good question!
> 
> IIUC, the qemu fw_cfg store the 'file' entry data just in byte stream.

No.  Integers are defined to be little endian.  See fw_cfg_add_i64() for
example, there is an explicit cpu_to_le64() call for that.

cheers,
  Gerd