Re: [Xen-devel] [PATCH for-4.5 v8 4/7] xen: Add vmware_port support

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 27.01.15 at 08:58, <JBeulich@xxxxxxxx> wrote:
>>>> On 26.01.15 at 21:19, <dslutz@xxxxxxxxxxx> wrote:
>> On 01/26/15 11:46, Jan Beulich wrote:
>>> As stated before - if feasible, 8 would seem the best option. The
>>> second best one would be to support all four I/O insns (assuming
>>> VMware supports all of them too) with any legal (even if pointless
>>> or redundant) prefix combination, and with the prefixes actually
>>> doing something correctly emulated.
>> 
>> Ok, I will focus on hvm_emulate_one.
> 
> Just to avoid any misunderstanding - it's another clone of it that
> you'll want to create, with presumably only .insn_fetch, .read_io, and
> .write_io implemented (and maybe a few others stubbed out, where
> the core emulator assumes they're non-NULL).

And I just recalled that I think in mem-event context it was already
suggested to perhaps separate instruction decoding from emulation,
which might be a mode also suitable for your needs. Maybe get in
touch with Razvan or Tamas or whoever it was, who might already
be working on that.

Jan


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