target/riscv: remove cpu->cfg.ext_h

Create a new "h" RISCVCPUMisaExtConfig property that will update
env->misa_ext* with RVH. Instances of cpu->cfg.ext_h and similar are
replaced with riscv_has_ext(env, RVH).

Remove the old "h" property and 'ext_h' from RISCVCPUConfig.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Weiwei Li <liweiwei@iscas.ac.cn>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20230406180351.570807-15-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

target/riscv/cpu.c

@@ -847,13 +847,13 @@ static void riscv_cpu_validate_set_extensions(RISCVCPU *cpu, Error **errp)
         return;
     }
 
-    if (cpu->cfg.ext_h && !riscv_has_ext(env, RVI)) {
+    if (riscv_has_ext(env, RVH) && !riscv_has_ext(env, RVI)) {
         error_setg(errp,
                    "H depends on an I base integer ISA with 32 x registers");
         return;
     }
 
-    if (cpu->cfg.ext_h && !riscv_has_ext(env, RVS)) {
+    if (riscv_has_ext(env, RVH) && !riscv_has_ext(env, RVS)) {
         error_setg(errp, "H extension implicitly requires S-mode");
         return;
     }
@@ -1172,7 +1172,7 @@ static void riscv_cpu_sync_misa_cfg(CPURISCVState *env)
     if (riscv_has_ext(env, RVU)) {
         ext |= RVU;
     }
-    if (riscv_cpu_cfg(env)->ext_h) {
+    if (riscv_has_ext(env, RVH)) {
         ext |= RVH;
     }
     if (riscv_cpu_cfg(env)->ext_v) {
@@ -1509,6 +1509,8 @@ static const RISCVCPUMisaExtConfig misa_ext_cfgs[] = {
      .misa_bit = RVS, .enabled = true},
     {.name = "u", .description = "User-level instructions",
      .misa_bit = RVU, .enabled = true},
+    {.name = "h", .description = "Hypervisor",
+     .misa_bit = RVH, .enabled = true},
 };
 
 static void riscv_cpu_add_misa_properties(Object *cpu_obj)
@@ -1533,7 +1535,6 @@ static Property riscv_cpu_extensions[] = {
     /* Defaults for standard extensions */
     DEFINE_PROP_BOOL("g", RISCVCPU, cfg.ext_g, false),
     DEFINE_PROP_BOOL("v", RISCVCPU, cfg.ext_v, false),
-    DEFINE_PROP_BOOL("h", RISCVCPU, cfg.ext_h, true),
     DEFINE_PROP_UINT8("pmu-num", RISCVCPU, cfg.pmu_num, 16),
     DEFINE_PROP_BOOL("sscofpmf", RISCVCPU, cfg.ext_sscofpmf, false),
     DEFINE_PROP_BOOL("Zifencei", RISCVCPU, cfg.ext_ifencei, true),
@@ -1647,7 +1648,6 @@ static void register_cpu_props(Object *obj)
      */
     if (cpu->env.misa_ext != 0) {
         cpu->cfg.ext_v = misa_ext & RVV;
-        cpu->cfg.ext_h = misa_ext & RVH;
         cpu->cfg.ext_j = misa_ext & RVJ;
 
         /*

target/riscv/cpu.h

@@ -423,7 +423,6 @@ typedef struct {
 
 struct RISCVCPUConfig {
     bool ext_g;
-    bool ext_h;
     bool ext_j;
     bool ext_v;
     bool ext_zba;