Re: [Qemu-arm] about armv8's prefetch decode

[Peter Maydell]

On 20 March 2017 at 06:35, Wangjintang <address@hidden> wrote:
>         We see that armv8's prefetch instruction decode have been
> skipped in qemu. For some user, they need prefetch instruction,
> for example, they use qemu to generate the instruction trace.
> We want to merge this patch to community, it's ok or not?  Thanks.

It would be helpful if you could be more precise about what
is missing and what goes wrong (eg which instructions we
mishandle). In general I believe that we do correctly handle
the various prefetch instructions. They don't need to generate
any intermediate code, of course, because prefetch is just
a hint. It's possible we got the decode wrong for some subset
of them.

thanks
-- PMM