Re: [Qemu-devel] [PATCH] fw_cfg: fix endianness in fw_cfg_data_mem_read() / _write()

[Paolo Bonzini]

On 31/12/2014 18:04, Laszlo Ersek wrote:
> 
> *If* it prints the number that the guest CPU sees immediately when it
> performs the wide read, then it should print 0x0000000032cb0046, on both
> big and little endian hosts; assuming a little endian guest.

Yes.

Paolo

> Namely, the fw_cfg (sub)string in question is [0x46, 0x00, 0xcb, 0x32].
> The device is big endian, and the register accessor function should
> return the 0x4600cb32 host value in qemu. The guest CPU should see the
> same byte array [0x46, 0x00, 0xcb, 0x32], whose direct interpretation in
> the little endian guest is 0x32cb0046.