[v2,01/10] target/ppc: Remove PowerPCCPUClass.handle_mmu_fault

From: Richard Henderson <richard.henderson@linaro.org>

Instead, use a switch on env->mmu_model.  This avoids some
replicated information in cpu setup.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
---
 target/ppc/cpu-qom.h    |  1 -
 target/ppc/cpu_init.c   | 45 -----------------------------------------
 target/ppc/mmu_helper.c | 24 ++++++++++++++++++----
 3 files changed, 20 insertions(+), 50 deletions(-)

On Mon, 21 Jun 2021 09:51:06 -0300
"Bruno Larsen (billionai)" <bruno.larsen@eldorado.org.br> wrote:

> From: Richard Henderson <richard.henderson@linaro.org>
> 
> Instead, use a switch on env->mmu_model.  This avoids some
> replicated information in cpu setup.
> 
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
> ---

Very nice !

Reviewed-by: Greg Kurz <groug@kaod.org>

>  target/ppc/cpu-qom.h    |  1 -
>  target/ppc/cpu_init.c   | 45 -----------------------------------------
>  target/ppc/mmu_helper.c | 24 ++++++++++++++++++----
>  3 files changed, 20 insertions(+), 50 deletions(-)
> 
> diff --git a/target/ppc/cpu-qom.h b/target/ppc/cpu-qom.h
> index 06b6571bc9..3b14d2f134 100644
> --- a/target/ppc/cpu-qom.h
> +++ b/target/ppc/cpu-qom.h
> @@ -198,7 +198,6 @@ struct PowerPCCPUClass {
>      int n_host_threads;
>      void (*init_proc)(CPUPPCState *env);
>      int  (*check_pow)(CPUPPCState *env);
> -    int (*handle_mmu_fault)(PowerPCCPU *cpu, vaddr eaddr, int rwx, int mmu_idx);
>      bool (*interrupts_big_endian)(PowerPCCPU *cpu);
>  };
>  
> diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
> index d0411e7302..3a8d8d3f07 100644
> --- a/target/ppc/cpu_init.c
> +++ b/target/ppc/cpu_init.c
> @@ -4578,9 +4578,6 @@ POWERPC_FAMILY(601)(ObjectClass *oc, void *data)
>                      (1ull << MSR_IR) |
>                      (1ull << MSR_DR);
>      pcc->mmu_model = POWERPC_MMU_601;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_601;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_601;
> @@ -4623,9 +4620,6 @@ POWERPC_FAMILY(601v)(ObjectClass *oc, void *data)
>                      (1ull << MSR_IR) |
>                      (1ull << MSR_DR);
>      pcc->mmu_model = POWERPC_MMU_601;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_601;
>      pcc->flags = POWERPC_FLAG_SE | POWERPC_FLAG_RTC_CLK | POWERPC_FLAG_HID0_LE;
> @@ -4889,9 +4883,6 @@ POWERPC_FAMILY(604)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_604;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_604;
> @@ -4973,9 +4964,6 @@ POWERPC_FAMILY(604E)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_604;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_604;
> @@ -5044,9 +5032,6 @@ POWERPC_FAMILY(740)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_7x0;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_750;
> @@ -5124,9 +5109,6 @@ POWERPC_FAMILY(750)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_7x0;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_750;
> @@ -5327,9 +5309,6 @@ POWERPC_FAMILY(750cl)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_7x0;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_750;
> @@ -5410,9 +5389,6 @@ POWERPC_FAMILY(750cx)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_7x0;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_750;
> @@ -5498,9 +5474,6 @@ POWERPC_FAMILY(750fx)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_7x0;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_750;
> @@ -5586,9 +5559,6 @@ POWERPC_FAMILY(750gx)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_7x0;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_750;
> @@ -5828,9 +5798,6 @@ POWERPC_FAMILY(7400)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_74xx;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_7400;
> @@ -5914,9 +5881,6 @@ POWERPC_FAMILY(7410)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_74xx;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_7400;
> @@ -6743,9 +6707,6 @@ POWERPC_FAMILY(e600)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_74xx;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_7400;
> @@ -7505,7 +7466,6 @@ POWERPC_FAMILY(970)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI);
>      pcc->mmu_model = POWERPC_MMU_64B;
>  #if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash64_handle_mmu_fault;
>      pcc->hash64_opts = &ppc_hash64_opts_basic;
>  #endif
>      pcc->excp_model = POWERPC_EXCP_970;
> @@ -7583,7 +7543,6 @@ POWERPC_FAMILY(POWER5P)(ObjectClass *oc, void *data)
>          LPCR_RMI | LPCR_HDICE;
>      pcc->mmu_model = POWERPC_MMU_2_03;
>  #if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash64_handle_mmu_fault;
>      pcc->hash64_opts = &ppc_hash64_opts_basic;
>      pcc->lrg_decr_bits = 32;
>  #endif
> @@ -7727,7 +7686,6 @@ POWERPC_FAMILY(POWER7)(ObjectClass *oc, void *data)
>      pcc->lpcr_pm = LPCR_P7_PECE0 | LPCR_P7_PECE1 | LPCR_P7_PECE2;
>      pcc->mmu_model = POWERPC_MMU_2_06;
>  #if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash64_handle_mmu_fault;
>      pcc->hash64_opts = &ppc_hash64_opts_POWER7;
>      pcc->lrg_decr_bits = 32;
>  #endif
> @@ -7904,7 +7862,6 @@ POWERPC_FAMILY(POWER8)(ObjectClass *oc, void *data)
>                     LPCR_P8_PECE3 | LPCR_P8_PECE4;
>      pcc->mmu_model = POWERPC_MMU_2_07;
>  #if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash64_handle_mmu_fault;
>      pcc->hash64_opts = &ppc_hash64_opts_POWER7;
>      pcc->lrg_decr_bits = 32;
>      pcc->n_host_threads = 8;
> @@ -8120,7 +8077,6 @@ POWERPC_FAMILY(POWER9)(ObjectClass *oc, void *data)
>      pcc->lpcr_pm = LPCR_PDEE | LPCR_HDEE | LPCR_EEE | LPCR_DEE | LPCR_OEE;
>      pcc->mmu_model = POWERPC_MMU_3_00;
>  #if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc64_v3_handle_mmu_fault;
>      /* segment page size remain the same */
>      pcc->hash64_opts = &ppc_hash64_opts_POWER7;
>      pcc->radix_page_info = &POWER9_radix_page_info;
> @@ -8332,7 +8288,6 @@ POWERPC_FAMILY(POWER10)(ObjectClass *oc, void *data)
>      pcc->lpcr_pm = LPCR_PDEE | LPCR_HDEE | LPCR_EEE | LPCR_DEE | LPCR_OEE;
>      pcc->mmu_model = POWERPC_MMU_3_00;
>  #if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc64_v3_handle_mmu_fault;
>      /* segment page size remain the same */
>      pcc->hash64_opts = &ppc_hash64_opts_POWER7;
>      pcc->radix_page_info = &POWER10_radix_page_info;
> diff --git a/target/ppc/mmu_helper.c b/target/ppc/mmu_helper.c
> index 1ecb36e85a..c4b1c93e47 100644
> --- a/target/ppc/mmu_helper.c
> +++ b/target/ppc/mmu_helper.c
> @@ -2947,14 +2947,30 @@ bool ppc_cpu_tlb_fill(CPUState *cs, vaddr addr, int size,
>                        bool probe, uintptr_t retaddr)
>  {
>      PowerPCCPU *cpu = POWERPC_CPU(cs);
> -    PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cs);
>      CPUPPCState *env = &cpu->env;
>      int ret;
>  
> -    if (pcc->handle_mmu_fault) {
> -        ret = pcc->handle_mmu_fault(cpu, addr, access_type, mmu_idx);
> -    } else {
> +    switch (env->mmu_model) {
> +#if defined(TARGET_PPC64)
> +    case POWERPC_MMU_64B:
> +    case POWERPC_MMU_2_03:
> +    case POWERPC_MMU_2_06:
> +    case POWERPC_MMU_2_07:
> +        ret = ppc_hash64_handle_mmu_fault(cpu, addr, access_type, mmu_idx);
> +        break;
> +    case POWERPC_MMU_3_00:
> +        ret = ppc64_v3_handle_mmu_fault(cpu, addr, access_type, mmu_idx);
> +        break;
> +#endif
> +
> +    case POWERPC_MMU_32B:
> +    case POWERPC_MMU_601:
> +        ret = ppc_hash32_handle_mmu_fault(cpu, addr, access_type, mmu_idx);
> +        break;
> +
> +    default:
>          ret = cpu_ppc_handle_mmu_fault(env, addr, access_type, mmu_idx);
> +        break;
>      }
>      if (unlikely(ret != 0)) {
>          if (probe) {

On Mon, Jun 21, 2021 at 09:51:06AM -0300, Bruno Larsen (billionai) wrote:
> From: Richard Henderson <richard.henderson@linaro.org>
> 
> Instead, use a switch on env->mmu_model.  This avoids some
> replicated information in cpu setup.
> 
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

As I mentioned on the earlier posting, I don't love the overall
direction of this change (I want to move more towards hooks and things
in the cpu class than magical model constants and switches all over
the place).

But.. the cleanups this allows in the short term are worth the small
step backwards.  So, applied to ppc-for-6.1.

> ---
>  target/ppc/cpu-qom.h    |  1 -
>  target/ppc/cpu_init.c   | 45 -----------------------------------------
>  target/ppc/mmu_helper.c | 24 ++++++++++++++++++----
>  3 files changed, 20 insertions(+), 50 deletions(-)
> 
> diff --git a/target/ppc/cpu-qom.h b/target/ppc/cpu-qom.h
> index 06b6571bc9..3b14d2f134 100644
> --- a/target/ppc/cpu-qom.h
> +++ b/target/ppc/cpu-qom.h
> @@ -198,7 +198,6 @@ struct PowerPCCPUClass {
>      int n_host_threads;
>      void (*init_proc)(CPUPPCState *env);
>      int  (*check_pow)(CPUPPCState *env);
> -    int (*handle_mmu_fault)(PowerPCCPU *cpu, vaddr eaddr, int rwx, int mmu_idx);
>      bool (*interrupts_big_endian)(PowerPCCPU *cpu);
>  };
>  
> diff --git a/target/ppc/cpu_init.c b/target/ppc/cpu_init.c
> index d0411e7302..3a8d8d3f07 100644
> --- a/target/ppc/cpu_init.c
> +++ b/target/ppc/cpu_init.c
> @@ -4578,9 +4578,6 @@ POWERPC_FAMILY(601)(ObjectClass *oc, void *data)
>                      (1ull << MSR_IR) |
>                      (1ull << MSR_DR);
>      pcc->mmu_model = POWERPC_MMU_601;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_601;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_601;
> @@ -4623,9 +4620,6 @@ POWERPC_FAMILY(601v)(ObjectClass *oc, void *data)
>                      (1ull << MSR_IR) |
>                      (1ull << MSR_DR);
>      pcc->mmu_model = POWERPC_MMU_601;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_601;
>      pcc->flags = POWERPC_FLAG_SE | POWERPC_FLAG_RTC_CLK | POWERPC_FLAG_HID0_LE;
> @@ -4889,9 +4883,6 @@ POWERPC_FAMILY(604)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_604;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_604;
> @@ -4973,9 +4964,6 @@ POWERPC_FAMILY(604E)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_604;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_604;
> @@ -5044,9 +5032,6 @@ POWERPC_FAMILY(740)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_7x0;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_750;
> @@ -5124,9 +5109,6 @@ POWERPC_FAMILY(750)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_7x0;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_750;
> @@ -5327,9 +5309,6 @@ POWERPC_FAMILY(750cl)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_7x0;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_750;
> @@ -5410,9 +5389,6 @@ POWERPC_FAMILY(750cx)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_7x0;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_750;
> @@ -5498,9 +5474,6 @@ POWERPC_FAMILY(750fx)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_7x0;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_750;
> @@ -5586,9 +5559,6 @@ POWERPC_FAMILY(750gx)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_7x0;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_750;
> @@ -5828,9 +5798,6 @@ POWERPC_FAMILY(7400)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_74xx;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_7400;
> @@ -5914,9 +5881,6 @@ POWERPC_FAMILY(7410)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_74xx;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_7400;
> @@ -6743,9 +6707,6 @@ POWERPC_FAMILY(e600)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI) |
>                      (1ull << MSR_LE);
>      pcc->mmu_model = POWERPC_MMU_32B;
> -#if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash32_handle_mmu_fault;
> -#endif
>      pcc->excp_model = POWERPC_EXCP_74xx;
>      pcc->bus_model = PPC_FLAGS_INPUT_6xx;
>      pcc->bfd_mach = bfd_mach_ppc_7400;
> @@ -7505,7 +7466,6 @@ POWERPC_FAMILY(970)(ObjectClass *oc, void *data)
>                      (1ull << MSR_RI);
>      pcc->mmu_model = POWERPC_MMU_64B;
>  #if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash64_handle_mmu_fault;
>      pcc->hash64_opts = &ppc_hash64_opts_basic;
>  #endif
>      pcc->excp_model = POWERPC_EXCP_970;
> @@ -7583,7 +7543,6 @@ POWERPC_FAMILY(POWER5P)(ObjectClass *oc, void *data)
>          LPCR_RMI | LPCR_HDICE;
>      pcc->mmu_model = POWERPC_MMU_2_03;
>  #if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash64_handle_mmu_fault;
>      pcc->hash64_opts = &ppc_hash64_opts_basic;
>      pcc->lrg_decr_bits = 32;
>  #endif
> @@ -7727,7 +7686,6 @@ POWERPC_FAMILY(POWER7)(ObjectClass *oc, void *data)
>      pcc->lpcr_pm = LPCR_P7_PECE0 | LPCR_P7_PECE1 | LPCR_P7_PECE2;
>      pcc->mmu_model = POWERPC_MMU_2_06;
>  #if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash64_handle_mmu_fault;
>      pcc->hash64_opts = &ppc_hash64_opts_POWER7;
>      pcc->lrg_decr_bits = 32;
>  #endif
> @@ -7904,7 +7862,6 @@ POWERPC_FAMILY(POWER8)(ObjectClass *oc, void *data)
>                     LPCR_P8_PECE3 | LPCR_P8_PECE4;
>      pcc->mmu_model = POWERPC_MMU_2_07;
>  #if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc_hash64_handle_mmu_fault;
>      pcc->hash64_opts = &ppc_hash64_opts_POWER7;
>      pcc->lrg_decr_bits = 32;
>      pcc->n_host_threads = 8;
> @@ -8120,7 +8077,6 @@ POWERPC_FAMILY(POWER9)(ObjectClass *oc, void *data)
>      pcc->lpcr_pm = LPCR_PDEE | LPCR_HDEE | LPCR_EEE | LPCR_DEE | LPCR_OEE;
>      pcc->mmu_model = POWERPC_MMU_3_00;
>  #if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc64_v3_handle_mmu_fault;
>      /* segment page size remain the same */
>      pcc->hash64_opts = &ppc_hash64_opts_POWER7;
>      pcc->radix_page_info = &POWER9_radix_page_info;
> @@ -8332,7 +8288,6 @@ POWERPC_FAMILY(POWER10)(ObjectClass *oc, void *data)
>      pcc->lpcr_pm = LPCR_PDEE | LPCR_HDEE | LPCR_EEE | LPCR_DEE | LPCR_OEE;
>      pcc->mmu_model = POWERPC_MMU_3_00;
>  #if defined(CONFIG_SOFTMMU)
> -    pcc->handle_mmu_fault = ppc64_v3_handle_mmu_fault;
>      /* segment page size remain the same */
>      pcc->hash64_opts = &ppc_hash64_opts_POWER7;
>      pcc->radix_page_info = &POWER10_radix_page_info;
> diff --git a/target/ppc/mmu_helper.c b/target/ppc/mmu_helper.c
> index 1ecb36e85a..c4b1c93e47 100644
> --- a/target/ppc/mmu_helper.c
> +++ b/target/ppc/mmu_helper.c
> @@ -2947,14 +2947,30 @@ bool ppc_cpu_tlb_fill(CPUState *cs, vaddr addr, int size,
>                        bool probe, uintptr_t retaddr)
>  {
>      PowerPCCPU *cpu = POWERPC_CPU(cs);
> -    PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cs);
>      CPUPPCState *env = &cpu->env;
>      int ret;
>  
> -    if (pcc->handle_mmu_fault) {
> -        ret = pcc->handle_mmu_fault(cpu, addr, access_type, mmu_idx);
> -    } else {
> +    switch (env->mmu_model) {
> +#if defined(TARGET_PPC64)
> +    case POWERPC_MMU_64B:
> +    case POWERPC_MMU_2_03:
> +    case POWERPC_MMU_2_06:
> +    case POWERPC_MMU_2_07:
> +        ret = ppc_hash64_handle_mmu_fault(cpu, addr, access_type, mmu_idx);
> +        break;
> +    case POWERPC_MMU_3_00:
> +        ret = ppc64_v3_handle_mmu_fault(cpu, addr, access_type, mmu_idx);
> +        break;
> +#endif
> +
> +    case POWERPC_MMU_32B:
> +    case POWERPC_MMU_601:
> +        ret = ppc_hash32_handle_mmu_fault(cpu, addr, access_type, mmu_idx);
> +        break;
> +
> +    default:
>          ret = cpu_ppc_handle_mmu_fault(env, addr, access_type, mmu_idx);
> +        break;
>      }
>      if (unlikely(ret != 0)) {
>          if (probe) {