Re: [EXT] Re: QEMU+KVM on RISC-V + Hypervisor Extension

[Alistair Francis]

On Thu, Mar 17, 2022 at 7:46 PM Peter Maydell <peter.maydell@linaro.org> wrote:
>
> On Wed, 16 Mar 2022 at 22:23, Alistair Francis <alistair23@gmail.com> wrote:
> > Hmm... This seems like a bug. We shouldn't allow the user to specify a
> > `-bios` option if using KVM. Would you mind preparing a patch to catch
> > this?
>
> You don't want to allow the possibility of a bios blob that expects
> to run in S-mode, the way arm virt can run an EL1 UEFI BIOS ?

Interesting. We could still allow that by using -device loader though.

If we load something in S mode it really is a kernel and not firmware,
so I think the -bios argument is a little misleading. We could make
-bios and -enable-kvm a warning instead, to discourage users from
providing OpenSBI, but still allow them to pass something.

To me not allowing it seems reasonable, and we can always re-allow it
in the future if there is a good use case.

Alistair

>
> thanks
> -- PMM