On 18 July 2016 at 12:59, Paolo Bonzini <pbonz...@redhat.com> wrote: > > > On 18/07/2016 13:57, Peter Maydell wrote: >> On 18 July 2016 at 12:54, Paolo Bonzini <pbonz...@redhat.com> wrote: >>> On 18/07/2016 13:51, Peter Maydell wrote: >>>> Looks like an attempt to do an atomic op on a larger-than-host-pointer >>>> type. >>> >>> Hmm, atomic_set should be acceptable even on 64-bit. >> >> How does that work, when the host might not have an atomic >> 64-bit write? > > All hosts we support should have it.
32-bit ARM does not guarantee that you can have 64-bit atomic operations. thanks -- PMM
