cpu: Introduce cpu_set_cpustate_pointers

Consolidate some boilerplate from foo_cpu_initfn.

Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

include/exec/cpu-all.h

@@ -371,6 +371,17 @@ int cpu_memory_rw_debug(CPUState *cpu, target_ulong addr,
 
 int cpu_exec(CPUState *cpu);
 
+/**
+ * cpu_set_cpustate_pointers(cpu)
+ * @cpu: The cpu object
+ *
+ * Set the generic pointers in CPUState into the outer object.
+ */
+static inline void cpu_set_cpustate_pointers(ArchCPU *cpu)
+{
+    cpu->parent_obj.env_ptr = &cpu->env;
+}
+
 /**
  * env_archcpu(env)
  * @env: The architecture environment

target/alpha/cpu.c

@@ -191,11 +191,10 @@ static void ev67_cpu_initfn(Object *obj)
 
 static void alpha_cpu_initfn(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     AlphaCPU *cpu = ALPHA_CPU(obj);
     CPUAlphaState *env = &cpu->env;
 
-    cs->env_ptr = env;
+    cpu_set_cpustate_pointers(cpu);
 
     env->lock_addr = -1;
 #if defined(CONFIG_USER_ONLY)

target/arm/cpu.c

@@ -697,10 +697,9 @@ static void cpreg_hashtable_data_destroy(gpointer data)
 
 static void arm_cpu_initfn(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     ARMCPU *cpu = ARM_CPU(obj);
 
-    cs->env_ptr = &cpu->env;
+    cpu_set_cpustate_pointers(cpu);
     cpu->cp_regs = g_hash_table_new_full(g_int_hash, g_int_equal,
                                          g_free, cpreg_hashtable_data_destroy);
 

target/cris/cpu.c

@@ -172,12 +172,11 @@ static void cris_disas_set_info(CPUState *cpu, disassemble_info *info)
 
 static void cris_cpu_initfn(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     CRISCPU *cpu = CRIS_CPU(obj);
     CRISCPUClass *ccc = CRIS_CPU_GET_CLASS(obj);
     CPUCRISState *env = &cpu->env;
 
-    cs->env_ptr = env;
+    cpu_set_cpustate_pointers(cpu);
 
     env->pregs[PR_VR] = ccc->vr;
 

target/hppa/cpu.c

@@ -134,7 +134,7 @@ static void hppa_cpu_initfn(Object *obj)
     HPPACPU *cpu = HPPA_CPU(obj);
     CPUHPPAState *env = &cpu->env;
 
-    cs->env_ptr = env;
+    cpu_set_cpustate_pointers(cpu);
     cs->exception_index = -1;
     cpu_hppa_loaded_fr0(env);
     cpu_hppa_put_psw(env, PSW_W);

target/i386/cpu.c

@@ -5592,13 +5592,12 @@ static void x86_cpu_get_crash_info_qom(Object *obj, Visitor *v,
 
 static void x86_cpu_initfn(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     X86CPU *cpu = X86_CPU(obj);
     X86CPUClass *xcc = X86_CPU_GET_CLASS(obj);
     CPUX86State *env = &cpu->env;
     FeatureWord w;
 
-    cs->env_ptr = env;
+    cpu_set_cpustate_pointers(cpu);
 
     object_property_add(obj, "family", "int",
                         x86_cpuid_version_get_family,

target/lm32/cpu.c

@@ -142,11 +142,10 @@ static void lm32_cpu_realizefn(DeviceState *dev, Error **errp)
 
 static void lm32_cpu_initfn(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     LM32CPU *cpu = LM32_CPU(obj);
     CPULM32State *env = &cpu->env;
 
-    cs->env_ptr = env;
+    cpu_set_cpustate_pointers(cpu);
 
     env->flags = 0;
 }

target/m68k/cpu.c

@@ -238,11 +238,9 @@ static void m68k_cpu_realizefn(DeviceState *dev, Error **errp)
 
 static void m68k_cpu_initfn(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     M68kCPU *cpu = M68K_CPU(obj);
-    CPUM68KState *env = &cpu->env;
 
-    cs->env_ptr = env;
+    cpu_set_cpustate_pointers(cpu);
 }
 
 static const VMStateDescription vmstate_m68k_cpu = {

target/microblaze/cpu.c

@@ -221,11 +221,10 @@ static void mb_cpu_realizefn(DeviceState *dev, Error **errp)
 
 static void mb_cpu_initfn(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     MicroBlazeCPU *cpu = MICROBLAZE_CPU(obj);
     CPUMBState *env = &cpu->env;
 
-    cs->env_ptr = env;
+    cpu_set_cpustate_pointers(cpu);
 
     set_float_rounding_mode(float_round_nearest_even, &env->fp_status);
 

target/mips/cpu.c

@@ -152,12 +152,11 @@ static void mips_cpu_realizefn(DeviceState *dev, Error **errp)
 
 static void mips_cpu_initfn(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     MIPSCPU *cpu = MIPS_CPU(obj);
     CPUMIPSState *env = &cpu->env;
     MIPSCPUClass *mcc = MIPS_CPU_GET_CLASS(obj);
 
-    cs->env_ptr = env;
+    cpu_set_cpustate_pointers(cpu);
     env->cpu_model = mcc->cpu_def;
 }
 

target/moxie/cpu.c

@@ -74,10 +74,9 @@ static void moxie_cpu_realizefn(DeviceState *dev, Error **errp)
 
 static void moxie_cpu_initfn(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     MoxieCPU *cpu = MOXIE_CPU(obj);
 
-    cs->env_ptr = &cpu->env;
+    cpu_set_cpustate_pointers(cpu);
 }
 
 static ObjectClass *moxie_cpu_class_by_name(const char *cpu_model)

target/nios2/cpu.c

@@ -66,14 +66,12 @@ static void nios2_cpu_reset(CPUState *cs)
 
 static void nios2_cpu_initfn(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     Nios2CPU *cpu = NIOS2_CPU(obj);
-    CPUNios2State *env = &cpu->env;
 
-    cs->env_ptr = env;
+    cpu_set_cpustate_pointers(cpu);
 
 #if !defined(CONFIG_USER_ONLY)
-    mmu_init(env);
+    mmu_init(&cpu->env);
 #endif
 }
 

target/openrisc/cpu.c

@@ -92,10 +92,9 @@ static void openrisc_cpu_realizefn(DeviceState *dev, Error **errp)
 
 static void openrisc_cpu_initfn(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     OpenRISCCPU *cpu = OPENRISC_CPU(obj);
 
-    cs->env_ptr = &cpu->env;
+    cpu_set_cpustate_pointers(cpu);
 }
 
 /* CPU models */

target/ppc/translate_init.inc.c

@@ -10473,12 +10473,11 @@ static bool ppc_cpu_is_big_endian(CPUState *cs)
 
 static void ppc_cpu_instance_init(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     PowerPCCPU *cpu = POWERPC_CPU(obj);
     PowerPCCPUClass *pcc = POWERPC_CPU_GET_CLASS(cpu);
     CPUPPCState *env = &cpu->env;
 
-    cs->env_ptr = env;
+    cpu_set_cpustate_pointers(cpu);
     cpu->vcpu_id = UNASSIGNED_CPU_INDEX;
 
     env->msr_mask = pcc->msr_mask;

target/riscv/cpu.c

@@ -367,10 +367,9 @@ static void riscv_cpu_realize(DeviceState *dev, Error **errp)
 
 static void riscv_cpu_init(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     RISCVCPU *cpu = RISCV_CPU(obj);
 
-    cs->env_ptr = &cpu->env;
+    cpu_set_cpustate_pointers(cpu);
 }
 
 static const VMStateDescription vmstate_riscv_cpu = {

target/s390x/cpu.c

@@ -285,17 +285,18 @@ static void s390_cpu_initfn(Object *obj)
 {
     CPUState *cs = CPU(obj);
     S390CPU *cpu = S390_CPU(obj);
-    CPUS390XState *env = &cpu->env;
 
-    cs->env_ptr = env;
+    cpu_set_cpustate_pointers(cpu);
     cs->halted = 1;
     cs->exception_index = EXCP_HLT;
     object_property_add(obj, "crash-information", "GuestPanicInformation",
                         s390_cpu_get_crash_info_qom, NULL, NULL, NULL, NULL);
     s390_cpu_model_register_props(obj);
 #if !defined(CONFIG_USER_ONLY)
-    env->tod_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, s390x_tod_timer, cpu);
-    env->cpu_timer = timer_new_ns(QEMU_CLOCK_VIRTUAL, s390x_cpu_timer, cpu);
+    cpu->env.tod_timer =
+        timer_new_ns(QEMU_CLOCK_VIRTUAL, s390x_tod_timer, cpu);
+    cpu->env.cpu_timer =
+        timer_new_ns(QEMU_CLOCK_VIRTUAL, s390x_cpu_timer, cpu);
     s390_cpu_set_state(S390_CPU_STATE_STOPPED, cpu);
 #endif
 }

target/sh4/cpu.c

@@ -194,11 +194,10 @@ static void superh_cpu_realizefn(DeviceState *dev, Error **errp)
 
 static void superh_cpu_initfn(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     SuperHCPU *cpu = SUPERH_CPU(obj);
     CPUSH4State *env = &cpu->env;
 
-    cs->env_ptr = env;
+    cpu_set_cpustate_pointers(cpu);
 
     env->movcal_backup_tail = &(env->movcal_backup);
 }

target/sparc/cpu.c

@@ -774,12 +774,11 @@ static void sparc_cpu_realizefn(DeviceState *dev, Error **errp)
 
 static void sparc_cpu_initfn(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     SPARCCPU *cpu = SPARC_CPU(obj);
     SPARCCPUClass *scc = SPARC_CPU_GET_CLASS(obj);
     CPUSPARCState *env = &cpu->env;
 
-    cs->env_ptr = env;
+    cpu_set_cpustate_pointers(cpu);
 
     if (scc->cpu_def) {
         env->def = *scc->cpu_def;

target/tilegx/cpu.c

@@ -100,11 +100,9 @@ static void tilegx_cpu_realizefn(DeviceState *dev, Error **errp)
 
 static void tilegx_cpu_initfn(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     TileGXCPU *cpu = TILEGX_CPU(obj);
-    CPUTLGState *env = &cpu->env;
 
-    cs->env_ptr = env;
+    cpu_set_cpustate_pointers(cpu);
 }
 
 static void tilegx_cpu_do_interrupt(CPUState *cs)

target/tricore/cpu.c

@@ -104,11 +104,9 @@ static void tricore_cpu_realizefn(DeviceState *dev, Error **errp)
 
 static void tricore_cpu_initfn(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     TriCoreCPU *cpu = TRICORE_CPU(obj);
-    CPUTriCoreState *env = &cpu->env;
 
-    cs->env_ptr = env;
+    cpu_set_cpustate_pointers(cpu);
 }
 
 static ObjectClass *tricore_cpu_class_by_name(const char *cpu_model)

target/unicore32/cpu.c

@@ -103,11 +103,10 @@ static void uc32_cpu_realizefn(DeviceState *dev, Error **errp)
 
 static void uc32_cpu_initfn(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     UniCore32CPU *cpu = UNICORE32_CPU(obj);
     CPUUniCore32State *env = &cpu->env;
 
-    cs->env_ptr = env;
+    cpu_set_cpustate_pointers(cpu);
 
 #ifdef CONFIG_USER_ONLY
     env->uncached_asr = ASR_MODE_USER;

target/xtensa/cpu.c

@@ -138,12 +138,11 @@ static void xtensa_cpu_realizefn(DeviceState *dev, Error **errp)
 
 static void xtensa_cpu_initfn(Object *obj)
 {
-    CPUState *cs = CPU(obj);
     XtensaCPU *cpu = XTENSA_CPU(obj);
     XtensaCPUClass *xcc = XTENSA_CPU_GET_CLASS(obj);
     CPUXtensaState *env = &cpu->env;
 
-    cs->env_ptr = env;
+    cpu_set_cpustate_pointers(cpu);
     env->config = xcc->config;
 
 #ifndef CONFIG_USER_ONLY