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Re: [PATCH v2 2/2] target/riscv: Legalize MPP value in write_mstatus


From: Richard Henderson
Subject: Re: [PATCH v2 2/2] target/riscv: Legalize MPP value in write_mstatus
Date: Thu, 6 Apr 2023 12:28:44 -0700
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.9.0

On 4/6/23 00:25, Weiwei Li wrote:
  void riscv_cpu_set_mode(CPURISCVState *env, target_ulong newpriv)
  {
-    if (newpriv > PRV_M) {
+    if (newpriv > PRV_M || newpriv == PRV_H) {
          g_assert_not_reached();
      }

Nit: if (test) { assert_not_reached } -> assert(!test).

which emits a more helpful error message before abort.


r~



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