Re: [Qemu-devel] [PATCH v1 2/2] RISC-V: Implement cpu_do_transaction_failed

["Philippe Mathieu-Daudé" <philmd@redhat.com>]

On 9/18/19 1:23 AM, Alistair Francis wrote:
> From: Palmer Dabbelt <palmer@sifive.com>
> 
> This converts our port over from cpu_do_unassigned_access to
> cpu_do_transaction_failed, as cpu_do_unassigned_access has been
> deprecated.
> 
> Signed-off-by: Palmer Dabbelt <palmer@sifive.com>
> Signed-off-by: Alistair Francis <alistair.francis@wdc.com>
> ---
>  target/riscv/cpu.c        |  2 +-
>  target/riscv/cpu.h        |  7 +++++--
>  target/riscv/cpu_helper.c | 11 +++++++----
>  3 files changed, 13 insertions(+), 7 deletions(-)
> 
> diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
> index f13e298a36..3939963b71 100644
> --- a/target/riscv/cpu.c
> +++ b/target/riscv/cpu.c
> @@ -484,7 +484,7 @@ static void riscv_cpu_class_init(ObjectClass *c, void *data)
>      cc->gdb_stop_before_watchpoint = true;
>      cc->disas_set_info = riscv_cpu_disas_set_info;
>  #ifndef CONFIG_USER_ONLY
> -    cc->do_unassigned_access = riscv_cpu_unassigned_access;
> +    cc->do_transaction_failed = riscv_cpu_do_transaction_failed;
>      cc->do_unaligned_access = riscv_cpu_do_unaligned_access;
>      cc->get_phys_page_debug = riscv_cpu_get_phys_page_debug;
>  #endif
> diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h
> index 124ed33ee4..8c64c68538 100644
> --- a/target/riscv/cpu.h
> +++ b/target/riscv/cpu.h
> @@ -264,8 +264,11 @@ void  riscv_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
>  bool riscv_cpu_tlb_fill(CPUState *cs, vaddr address, int size,
>                          MMUAccessType access_type, int mmu_idx,
>                          bool probe, uintptr_t retaddr);
> -void riscv_cpu_unassigned_access(CPUState *cpu, hwaddr addr, bool is_write,
> -                                 bool is_exec, int unused, unsigned size);
> +void riscv_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr,
> +                                     vaddr addr, unsigned size,
> +                                     MMUAccessType access_type,
> +                                     int mmu_idx, MemTxAttrs attrs,
> +                                     MemTxResult response, uintptr_t retaddr);
>  char *riscv_isa_string(RISCVCPU *cpu);
>  void riscv_cpu_list(void);
>  
> diff --git a/target/riscv/cpu_helper.c b/target/riscv/cpu_helper.c
> index c82e7ed52b..917252f71b 100644
> --- a/target/riscv/cpu_helper.c
> +++ b/target/riscv/cpu_helper.c
> @@ -408,20 +408,23 @@ hwaddr riscv_cpu_get_phys_page_debug(CPUState *cs, vaddr addr)
>      return phys_addr;
>  }
>  
> -void riscv_cpu_unassigned_access(CPUState *cs, hwaddr addr, bool is_write,
> -                                 bool is_exec, int unused, unsigned size)
> +void riscv_cpu_do_transaction_failed(CPUState *cs, hwaddr physaddr,
> +                                     vaddr addr, unsigned size,
> +                                     MMUAccessType access_type,
> +                                     int mmu_idx, MemTxAttrs attrs,
> +                                     MemTxResult response, uintptr_t retaddr)
>  {
>      RISCVCPU *cpu = RISCV_CPU(cs);
>      CPURISCVState *env = &cpu->env;
>  
> -    if (is_write) {
> +    if (access_type == MMU_DATA_STORE) {
>          cs->exception_index = RISCV_EXCP_STORE_AMO_ACCESS_FAULT;
>      } else {
>          cs->exception_index = RISCV_EXCP_LOAD_ACCESS_FAULT;
>      }
>  
>      env->badaddr = addr;
> -    riscv_raise_exception(&cpu->env, cs->exception_index, GETPC());
> +    riscv_raise_exception(&cpu->env, cs->exception_index, retaddr);
>  }
>  
>  void riscv_cpu_do_unaligned_access(CPUState *cs, vaddr addr,
> 

Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>