Re: [PATCH v2 10/15] target/riscv: Add a riscv_cpu_is_32bit() helper function

[Alistair Francis]

On Wed, Dec 9, 2020 at 7:59 AM Richard Henderson
<richard.hender...@linaro.org> wrote:
>
> On 12/8/20 4:56 PM, Alistair Francis wrote:
> > +bool riscv_cpu_is_32bit(CPURISCVState *env)
> > +{
> > +    if (env->misa & RV64) {
> > +        return false;
> > +    }
> > +
> > +    return true;
>
> Is this ever going to more than
>
>     return !(env->misa & RV64);

Eventually this could also depend on mstatus, to allow a 32-bit kernel
to run on a 64-bit firmware.

It will also hopefully one day be configurable by hypervisors.

Alistair

>
> ?
>
>
> r~