Re: [Qemu-devel] [PATCH 1/8] virtio_get_byteswap: function for endian-ambivalent targets using virtio.

[Peter Maydell]

On 12 August 2013 10:28, Benjamin Herrenschmidt
<address@hidden> wrote:
> We have explicit knowledge of when our endianness change (we get the
> hcall or a write to some SPR), we can call virtio *then* to adjust the
> endianness rather than having a call-out to the platform on every
> access.

ARM doesn't -- I wouldn't expect changing the endianness of
exceptions via writing to the SCTLR to trap to the hypervisor
(and in any case it certainly won't result in a return to
userspace).

-- PMM