Re: [PATCH 5/6] target/riscv: flush tb when PMP entry changes

[LIU Zhiwei <zhiwei_liu@linux.alibaba.com>]

On 2023/4/13 17:01, Weiwei Li wrote:
> The translation block may also be affected when PMP entry changes.
>
> Signed-off-by: Weiwei Li <liweiwei@iscas.ac.cn>
> Signed-off-by: Junqiang Wang <wangjunqiang@iscas.ac.cn>
> ---
>   target/riscv/pmp.c | 3 +++
>   1 file changed, 3 insertions(+)
>
> diff --git a/target/riscv/pmp.c b/target/riscv/pmp.c
> index aced23c4d5..c2db52361f 100644
> --- a/target/riscv/pmp.c
> +++ b/target/riscv/pmp.c
> @@ -25,6 +25,7 @@
>   #include "cpu.h"
>   #include "trace.h"
>   #include "exec/exec-all.h"
> +#include "exec/tb-flush.h"
>   
>   static bool pmp_write_cfg(CPURISCVState *env, uint32_t addr_index,
>                             uint8_t val);
> @@ -492,6 +493,7 @@ void pmpcfg_csr_write(CPURISCVState *env, uint32_t reg_index,
>       /* If PMP permission of any addr has been changed, flush TLB pages. */
>       if (modified) {
>           tlb_flush(env_cpu(env));
> +        tb_flush(env_cpu(env));

Move this to pmp_update_rules.

Zhiwei

>       }
>   }
>   
> @@ -545,6 +547,7 @@ void pmpaddr_csr_write(CPURISCVState *env, uint32_t addr_index,
>                   env->pmp_state.pmp[addr_index].addr_reg = val;
>                   pmp_update_rule(env, addr_index);
>                   tlb_flush(env_cpu(env));
> +                tb_flush(env_cpu(env));
>               }
>           } else {
>               qemu_log_mask(LOG_GUEST_ERROR,