Re: [Qemu-devel] [Bug 1201446] Re: Instructions not supported by targeted CPU do not throw SIGILL

[Peter Maydell]

On 15 July 2013 16:35, Jonathan Morton <address@hidden> wrote:
>> Actually, we do do testing of feature bits for things like SSE2,
> 3DNow!, and so on -- it looks like we just missed cmov.
>
> That's encouraging to hear - I hadn't specifically tested for the
> behaviour in the other cases I described, just extrapolated.
>
> Is there a good chance that the CMOV thing will be fixed?

Well, target-i386 is listed in MAINTAINERS as status "Odd Fixes",
which means it doesn't get a great deal of love; however since
this is probably about a five-line fix you may well be lucky and
find that somebody writes a patch for it. The most tedious
bit is probably wading through the intel manuals to confirm
the affected instruction encodings and which feature bit
to test.

-- PMM