On 05/13/2015 02:15 PM, Peter Maydell wrote: > On 13 May 2015 at 22:08, Richard Henderson <r...@twiddle.net> wrote: >>> Are unaligned accesses always slow-path, by the way? > > Would it be in theory possible to fast-path MO_UNALN > unaligned accesses if the host CPU supported unaligned > accesses for whatever load/store insn we use in the TLB > hit case?
We would also need to test for page boundary crossing. That would take at least 3 more insns, for a host that natively supports unaligned accesses. Whether that's worth it or not would need testing... r~
