target/riscv: add riscv_cpu_get_name()

We'll introduce generic errors that will output a CPU type name via its
RISCVCPU pointer. Create a helper for that.

Use the helper in tcg_cpu_realizefn() instead of hardcoding the 'host'
CPU name.

Signed-off-by: Daniel Henrique Barboza <dbarboza@ventanamicro.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-ID: <20230926183109.165878-2-dbarboza@ventanamicro.com>
Signed-off-by: Alistair Francis <alistair.francis@wdc.com>

diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index a7cc7aa6e2e1937880037b6eacc36a4349cf0f7a..cdeb24cb5edf66f0e24700c71e5feb023838539c 100644 (file)
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -643,6 +643,17 @@ static ObjectClass *riscv_cpu_class_by_name(const char *cpu_model)
     return oc;
 }
 
+char *riscv_cpu_get_name(RISCVCPU *cpu)
+{
+    RISCVCPUClass *rcc = RISCV_CPU_GET_CLASS(cpu);
+    const char *typename = object_class_get_name(OBJECT_CLASS(rcc));
+
+    g_assert(g_str_has_suffix(typename, RISCV_CPU_TYPE_SUFFIX));
+
+    return g_strndup(typename,
+                     strlen(typename) - strlen(RISCV_CPU_TYPE_SUFFIX));
+}
+
 static void riscv_cpu_dump_state(CPUState *cs, FILE *f, int flags)
 {
     RISCVCPU *cpu = RISCV_CPU(cs);

diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h
index 7291b847569554c0c82205066d377b5b53eeb74d..8298f8bf63fbfc4e817af21ab930b34798b3fa3e 100644 (file)
--- a/target/riscv/cpu.h
+++ b/target/riscv/cpu.h
@@ -730,6 +730,7 @@ typedef struct isa_ext_data {
     int ext_enable_offset;
 } RISCVIsaExtData;
 extern const RISCVIsaExtData isa_edata_arr[];
+char *riscv_cpu_get_name(RISCVCPU *cpu);
 
 void riscv_add_satp_mode_properties(Object *obj);
 

diff --git a/target/riscv/tcg/tcg-cpu.c b/target/riscv/tcg/tcg-cpu.c
index a021ec833de28ed8a1aabc4d2177b11cfe6a621e..104e91846a6130ca0333f27d910f46e43f53b5ad 100644 (file)
--- a/target/riscv/tcg/tcg-cpu.c
+++ b/target/riscv/tcg/tcg-cpu.c
@@ -563,7 +563,9 @@ static bool tcg_cpu_realize(CPUState *cs, Error **errp)
     Error *local_err = NULL;
 
     if (object_dynamic_cast(OBJECT(cpu), TYPE_RISCV_CPU_HOST)) {
-        error_setg(errp, "'host' CPU is not compatible with TCG acceleration");
+        g_autofree char *name = riscv_cpu_get_name(cpu);
+        error_setg(errp, "'%s' CPU is not compatible with TCG acceleration",
+                   name);
         return false;
     }