target/riscv: make riscv_cpu_is_vendor() public

We'll use this function in target/riscv/cpu.c to implement setters that
won't allow vendor CPU options to be changed.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Tested-by: Vladimir Isaev <vladimir.isaev@syntacore.com>
Message-ID: <20240105230546.265053-3-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

target/riscv/cpu.c

@@ -190,6 +190,11 @@ void isa_ext_update_enabled(RISCVCPU *cpu, uint32_t ext_offset, bool en)
     *ext_enabled = en;
 }
 
+bool riscv_cpu_is_vendor(Object *cpu_obj)
+{
+    return object_dynamic_cast(cpu_obj, TYPE_RISCV_VENDOR_CPU) != NULL;
+}
+
 const char * const riscv_int_regnames[] = {
     "x0/zero", "x1/ra",  "x2/sp",  "x3/gp",  "x4/tp",  "x5/t0",   "x6/t1",
     "x7/t2",   "x8/s0",  "x9/s1",  "x10/a0", "x11/a1", "x12/a2",  "x13/a3",

target/riscv/cpu.h

@@ -770,6 +770,7 @@ enum riscv_pmu_event_idx {
 void isa_ext_update_enabled(RISCVCPU *cpu, uint32_t ext_offset, bool en);
 bool isa_ext_is_enabled(RISCVCPU *cpu, uint32_t ext_offset);
 void riscv_cpu_set_misa(CPURISCVState *env, RISCVMXL mxl, uint32_t ext);
+bool riscv_cpu_is_vendor(Object *cpu_obj);
 
 typedef struct RISCVCPUMultiExtConfig {
     const char *name;

target/riscv/tcg/tcg-cpu.c

@@ -950,11 +950,6 @@ static bool riscv_cpu_is_generic(Object *cpu_obj)
     return object_dynamic_cast(cpu_obj, TYPE_RISCV_DYNAMIC_CPU) != NULL;
 }
 
-static bool riscv_cpu_is_vendor(Object *cpu_obj)
-{
-    return object_dynamic_cast(cpu_obj, TYPE_RISCV_VENDOR_CPU) != NULL;
-}
-
 /*
  * We'll get here via the following path:
  *