Re: [PATCH 13/14] hw/riscv: Define SiFive E/U CPUs using runtime conditions

[Philippe Mathieu-Daudé]

On 17/12/25 00:51, Anton Johansson wrote:

Signed-off-by: Anton Johansson <a...@rev.ng>
---
  include/hw/riscv/sifive_cpu.h | 26 +++++++++++++++++++-------
  hw/riscv/sifive_e.c           |  2 +-
  hw/riscv/sifive_u.c           |  4 ++--
  3 files changed, 22 insertions(+), 10 deletions(-)

diff --git a/include/hw/riscv/sifive_cpu.h b/include/hw/riscv/sifive_cpu.h
index 136799633a..8391141d5e 100644
--- a/include/hw/riscv/sifive_cpu.h
+++ b/include/hw/riscv/sifive_cpu.h
@@ -20,12 +20,24 @@
  #ifndef HW_SIFIVE_CPU_H
  #define HW_SIFIVE_CPU_H

-#if defined(TARGET_RISCV32)

-#define SIFIVE_E_CPU TYPE_RISCV_CPU_SIFIVE_E31
-#define SIFIVE_U_CPU TYPE_RISCV_CPU_SIFIVE_U34
-#elif defined(TARGET_RISCV64)
-#define SIFIVE_E_CPU TYPE_RISCV_CPU_SIFIVE_E51
-#define SIFIVE_U_CPU TYPE_RISCV_CPU_SIFIVE_U54
-#endif
+#include "qemu/target-info.h"
+
+static inline const char *sifive_e_cpu(void)
+{
+    if (target_riscv64()) {
+        return TYPE_RISCV_CPU_SIFIVE_E51;
+    } else {
+        return TYPE_RISCV_CPU_SIFIVE_E31;
+    }
+}
+
+static inline const char *sifive_u_cpu(void)
+{
+    if (target_riscv64()) {
+        return TYPE_RISCV_CPU_SIFIVE_U54;
+    } else {
+        return TYPE_RISCV_CPU_SIFIVE_U34;
+    }
+}

#endif /* HW_SIFIVE_CPU_H */

diff --git a/hw/riscv/sifive_e.c b/hw/riscv/sifive_e.c
index 7ed419cf69..458b21b9e3 100644
--- a/hw/riscv/sifive_e.c
+++ b/hw/riscv/sifive_e.c
@@ -151,7 +151,7 @@ static void sifive_e_machine_class_init(ObjectClass *oc, 
const void *data)
      mc->desc = "RISC-V Board compatible with SiFive E SDK";
      mc->init = sifive_e_machine_init;
      mc->max_cpus = 1;
-    mc->default_cpu_type = SIFIVE_E_CPU;
+    mc->default_cpu_type = sifive_e_cpu();
      mc->default_ram_id = "riscv.sifive.e.ram";
      mc->default_ram_size = sifive_e_memmap[SIFIVE_E_DEV_DTIM].size;

diff --git a/hw/riscv/sifive_u.c b/hw/riscv/sifive_u.c

index 2ff2059bb9..a04481806e 100644
--- a/hw/riscv/sifive_u.c
+++ b/hw/riscv/sifive_u.c
@@ -723,7 +723,7 @@ static void sifive_u_machine_class_init(ObjectClass *oc, 
const void *data)
      mc->init = sifive_u_machine_init;
      mc->max_cpus = SIFIVE_U_MANAGEMENT_CPU_COUNT + SIFIVE_U_COMPUTE_CPU_COUNT;
      mc->min_cpus = SIFIVE_U_MANAGEMENT_CPU_COUNT + 1;
-    mc->default_cpu_type = SIFIVE_U_CPU;
+    mc->default_cpu_type = sifive_u_cpu();
      mc->default_cpus = mc->min_cpus;
      mc->default_ram_id = "riscv.sifive.u.ram";
      mc->auto_create_sdcard = true;
@@ -764,7 +764,7 @@ static void sifive_u_soc_instance_init(Object *obj)
                              TYPE_RISCV_HART_ARRAY);
      qdev_prop_set_uint32(DEVICE(&s->e_cpus), "num-harts", 1);
      qdev_prop_set_uint32(DEVICE(&s->e_cpus), "hartid-base", 0);
-    qdev_prop_set_string(DEVICE(&s->e_cpus), "cpu-type", SIFIVE_E_CPU);
+    qdev_prop_set_string(DEVICE(&s->e_cpus), "cpu-type", sifive_e_cpu());
      qdev_prop_set_uint64(DEVICE(&s->e_cpus), "resetvec", 0x1004);

object_initialize_child(obj, "u-cluster", &s->u_cluster, TYPE_CPU_CLUSTER);

Just inline and remove the header. With that:
Reviewed-by: Philippe Mathieu-Daudé <phi...@linaro.org>