target/riscv: Reset henvcfg to zero

The hypervisor should decide what it wants to enable. Zero all
configuration enable bits on reset.

Also, commit ed67d63798 ("target/riscv: Update CSR bits name for
svadu extension") missed one reference to 'hade'. Change it now.

Fixes: 0af3f115e6 ("target/riscv: Add *envcfg.HADE related check in address translation")
Fixes: ed67d63798 ("target/riscv: Update CSR bits name for svadu extension")
Reviewed-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Signed-off-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20240215223955.969568-5-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

target/riscv/cpu.c

@@ -961,8 +961,7 @@ static void riscv_cpu_reset_hold(Object *obj)
 
     env->menvcfg = (cpu->cfg.ext_svpbmt ? MENVCFG_PBMTE : 0) |
                    (cpu->cfg.ext_svadu ? MENVCFG_ADUE : 0);
-    env->henvcfg = (cpu->cfg.ext_svpbmt ? HENVCFG_PBMTE : 0) |
-                   (cpu->cfg.ext_svadu ? HENVCFG_ADUE : 0);
+    env->henvcfg = 0;
 
     /* Initialized default priorities of local interrupts. */
     for (i = 0; i < ARRAY_SIZE(env->miprio); i++) {

target/riscv/csr.c

@@ -2133,7 +2133,7 @@ static RISCVException read_henvcfg(CPURISCVState *env, int csrno,
     /*
      * henvcfg.pbmte is read_only 0 when menvcfg.pbmte = 0
      * henvcfg.stce is read_only 0 when menvcfg.stce = 0
-     * henvcfg.hade is read_only 0 when menvcfg.hade = 0
+     * henvcfg.adue is read_only 0 when menvcfg.adue = 0
      */
     *val = env->henvcfg & (~(HENVCFG_PBMTE | HENVCFG_STCE | HENVCFG_ADUE) |
                            env->menvcfg);