Re: Is it possible to boot a riscv32 guest on riscv64 host using KVM?

[Anup Patel]

On Mon, Jun 26, 2023 at 4:57 PM Philippe Mathieu-Daudé
<philmd@linaro.org> wrote:
>
> Hi,
>
> I'm working on a tree-wide accelerator refactor and want
> to run various configs to be sure I didn't broke anything.
>
> QEMU theoretically supports running a riscv32 guest using
> KVM on a riscv64 host, however the documentation I'm finding
> only refers to riscv64 guests:
> https://github.com/kvm-riscv/howto/wiki
>
> So I wonder, is this a valid / supported config? If so,
> do you mind helping me with pointing me to a guest image
> and its command line?

Currently, we only support running rv64 guest on rv64 host
and rv32 guest on rv32 host.

In the future, we might support running rv32 guest on rv64 host
but as of now we don't see a strong push for it.

Regards,
Anup

>
> Thanks,
>
> Phil.