Re: [PATCH v3 2/6] target/riscv: hardwire mstatus.FS to zero when enable zfinx

[Weiwei Li]

在 2022/1/8 上午4:48, Richard Henderson 写道:
> On 1/7/22 3:27 AM, Weiwei Li wrote:
> > @@ -342,6 +342,11 @@ static void mark_fs_dirty(DisasContext *ctx)
> >   {
> >       TCGv tmp;
> >   +    /* hardwire mstatus.FS to zero when enable zfinx */
> > +    if (ctx->ext_zfinx) {
> > +        return;
> > +    }
> > +
> >       if (ctx->mstatus_fs != MSTATUS_FS) {
>
> This should also test RVF.
>
> Finally, there needs to be a change to write_misa -- MSTATUS_FS needs 
> to be cleared when RVF is disabled.
OK. I'll update this.
> r~