Start putting all the CPU definitions in a struct.  Later this will replace
instance_init functions with declarative code, for now just remove the
ugly cast of class_data.

Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
 target/riscv/cpu.h |  4 ++++
 target/riscv/cpu.c | 26 +++++++++++++++++---------
 2 files changed, 21 insertions(+), 9 deletions(-)

diff --git a/target/riscv/cpu.h b/target/riscv/cpu.h
index 97713681cbe..b2c9302634d 100644
--- a/target/riscv/cpu.h
+++ b/target/riscv/cpu.h
@@ -517,6 +517,10 @@ struct ArchCPU {
     const GPtrArray *decoders;
 };
 
+typedef struct RISCVCPUDef {
+    RISCVMXL misa_mxl_max;  /* max mxl for this cpu */
+} RISCVCPUDef;
+
 /**
  * RISCVCPUClass:
  * @parent_realize: The parent class' realize handler.
diff --git a/target/riscv/cpu.c b/target/riscv/cpu.c
index ed9da692030..29cfae38b75 100644
--- a/target/riscv/cpu.c
+++ b/target/riscv/cpu.c
@@ -2955,7 +2955,7 @@ static void riscv_cpu_class_init(ObjectClass *c, void 
*data)
 {
     RISCVCPUClass *mcc = RISCV_CPU_CLASS(c);
 
-    mcc->misa_mxl_max = (uint32_t)(uintptr_t)data;
+    mcc->misa_mxl_max = ((RISCVCPUDef *)data)->misa_mxl_max;
     riscv_cpu_validate_misa_mxl(mcc);
 }
 
@@ -3051,40 +3051,48 @@ void riscv_isa_write_fdt(RISCVCPU *cpu, void *fdt, char 
*nodename)
 }
 #endif
 
-#define DEFINE_DYNAMIC_CPU(type_name, misa_mxl_max, initfn) \
+#define DEFINE_DYNAMIC_CPU(type_name, misa_mxl_max_, initfn) \
     {                                                       \
         .name = (type_name),                                \
         .parent = TYPE_RISCV_DYNAMIC_CPU,                   \
         .instance_init = (initfn),                          \
         .class_init = riscv_cpu_class_init,                 \
-        .class_data = (void *)(misa_mxl_max)                \
+        .class_data = &((RISCVCPUDef) {                     \
+             .misa_mxl_max = (misa_mxl_max_),               \
+        }),                                                 \
     }
 
-#define DEFINE_VENDOR_CPU(type_name, misa_mxl_max, initfn)  \
+#define DEFINE_VENDOR_CPU(type_name, misa_mxl_max_, initfn) \
     {                                                       \
         .name = (type_name),                                \
         .parent = TYPE_RISCV_VENDOR_CPU,                    \
         .instance_init = (initfn),                          \
         .class_init = riscv_cpu_class_init,                 \
-        .class_data = (void *)(misa_mxl_max)                \
+        .class_data = &((RISCVCPUDef) {                     \
+             .misa_mxl_max = (misa_mxl_max_),               \
+        }),                                                 \
     }
 
-#define DEFINE_BARE_CPU(type_name, misa_mxl_max, initfn)    \
+#define DEFINE_BARE_CPU(type_name, misa_mxl_max_, initfn)   \
     {                                                       \
         .name = (type_name),                                \
         .parent = TYPE_RISCV_BARE_CPU,                      \
         .instance_init = (initfn),                          \
         .class_init = riscv_cpu_class_init,                 \
-        .class_data = (void *)(misa_mxl_max)                \
+        .class_data = &((RISCVCPUDef) {                     \
+             .misa_mxl_max = (misa_mxl_max_),               \
+        }),                                                 \
     }
 
-#define DEFINE_PROFILE_CPU(type_name, misa_mxl_max, initfn) \
+#define DEFINE_PROFILE_CPU(type_name, misa_mxl_max_, initfn) \
     {                                                       \
         .name = (type_name),                                \
         .parent = TYPE_RISCV_BARE_CPU,                      \
         .instance_init = (initfn),                          \
         .class_init = riscv_cpu_class_init,                 \
-        .class_data = (void *)(misa_mxl_max)                \
+        .class_data = &((RISCVCPUDef) {                     \
+             .misa_mxl_max = (misa_mxl_max_),               \
+        }),                                                 \
     }
 
 static const TypeInfo riscv_cpu_type_infos[] = {
-- 
2.48.1


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