Re: [Qemu-devel] Making cputlb.c operations safe for MTTCG

[Richard Henderson]

On 09/27/2016 04:32 PM, Alex Bennée wrote:
> Richard Henderson <address@hidden> writes:
>
> > On 09/27/2016 03:29 PM, Emilio G. Cota wrote:
> > > What's a quick-and-dirty way to disable the fast-path TLB lookups?
> > > Alex: you told me the monitor has an option for this, but I can't
> > > find it. I'm looking for something that'd go in tcg/i386 to simply
> > > bypass the fast path.
> >
> > There is no easy way.  If you need that, you'd have to significantly modify the
> > tcg backend.
>
> Surely all the backends force the slow-path when any of TLB_FLAGS_MASK
> are set. Unless adding an extra bit is going to run out of spare bits on
> some backends?

You could do that, yes.  You also need to adjust softmmu_template.h to match.


r~