Re: [PATCH 2/4] target/ppc: Allow virtual hypervisor on CPU without HV

[David Gibson]

On Sun, Jun 27, 2021 at 06:27:13PM +0200, BALATON Zoltan wrote:
> Change the assert in ppc_store_sdr1() to allow vhyp to be set on CPUs
> without HV bit. This allows using the vhyp interface for firmware
> emulation on pegasos2.
> 
> Signed-off-by: BALATON Zoltan <balaton@eik.bme.hu>

Kind of a hack, but a simple one, so applied to ppc-for-6.1.

> ---
>  target/ppc/cpu.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/target/ppc/cpu.c b/target/ppc/cpu.c
> index 19d67b5b07..a29299882a 100644
> --- a/target/ppc/cpu.c
> +++ b/target/ppc/cpu.c
> @@ -72,7 +72,7 @@ void ppc_store_sdr1(CPUPPCState *env, target_ulong value)
>  {
>      PowerPCCPU *cpu = env_archcpu(env);
>      qemu_log_mask(CPU_LOG_MMU, "%s: " TARGET_FMT_lx "\n", __func__, value);
> -    assert(!cpu->vhyp);
> +    assert(!cpu->env.has_hv_mode || !cpu->vhyp);
>  #if defined(TARGET_PPC64)
>      if (mmu_is_64bit(env->mmu_model)) {
>          target_ulong sdr_mask = SDR_64_HTABORG | SDR_64_HTABSIZE;

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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