mips: fix cpu_reset memory leak

Remove cpu_mips_register()
- move mmu_init(), fpu_init() and mvp_init() into cpu_mips_init()
- move the other parts in cpu_mips_init()

Reported-by: Blue Swirl <blauwirbel@gmail.com>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>

3 files changed, 54 insertions, 56 deletions

diff --git a/target-mips/cpu.h b/target-mips/cpu.h
index c27738a..cefa5ae 100644
--- a/target-mips/cpu.h
+++ b/target-mips/cpu.h
@@ -175,8 +175,6 @@ struct CPUMIPSState {
     TCState active_tc;
     CPUMIPSFPUContext active_fpu;
 
-    CPUMIPSMVPContext *mvp;
-    CPUMIPSTLBContext *tlb;
     uint32_t current_tc;
     uint32_t current_fpu;
 
@@ -458,6 +456,9 @@ struct CPUMIPSState {
 
     CPU_COMMON
 
+    CPUMIPSMVPContext *mvp;
+    CPUMIPSTLBContext *tlb;
+
     const mips_def_t *cpu_model;
     void *irq[8];
     struct QEMUTimer *timer; /* Internal timer */
diff --git a/target-mips/translate.c b/target-mips/translate.c
index 58f483f..79ff846 100644
--- a/target-mips/translate.c
+++ b/target-mips/translate.c
@@ -8598,9 +8598,14 @@ CPUMIPSState *cpu_mips_init (const char *cpu_model)
         return NULL;
     env = qemu_mallocz(sizeof(CPUMIPSState));
     env->cpu_model = def;
+    env->cpu_model_str = cpu_model;
 
     cpu_exec_init(env);
-    env->cpu_model_str = cpu_model;
+#ifndef CONFIG_USER_ONLY
+    mmu_init(env, def);
+#endif
+    fpu_init(env, def);
+    mvp_init(env, def);
     mips_tcg_init();
     cpu_reset(env);
     qemu_init_vcpu(env);
@@ -8615,10 +8620,46 @@ void cpu_reset (CPUMIPSState *env)
     }
 
     memset(env, 0, offsetof(CPUMIPSState, breakpoints));
-
     tlb_flush(env, 1);
 
-    /* Minimal init */
+    /* Reset registers to their default values */
+    env->CP0_PRid = env->cpu_model->CP0_PRid;
+    env->CP0_Config0 = env->cpu_model->CP0_Config0;
+#ifdef TARGET_WORDS_BIGENDIAN
+    env->CP0_Config0 |= (1 << CP0C0_BE);
+#endif
+    env->CP0_Config1 = env->cpu_model->CP0_Config1;
+    env->CP0_Config2 = env->cpu_model->CP0_Config2;
+    env->CP0_Config3 = env->cpu_model->CP0_Config3;
+    env->CP0_Config6 = env->cpu_model->CP0_Config6;
+    env->CP0_Config7 = env->cpu_model->CP0_Config7;
+    env->SYNCI_Step = env->cpu_model->SYNCI_Step;
+    env->CCRes = env->cpu_model->CCRes;
+    env->CP0_Status_rw_bitmask = env->cpu_model->CP0_Status_rw_bitmask;
+    env->CP0_TCStatus_rw_bitmask = env->cpu_model->CP0_TCStatus_rw_bitmask;
+    env->CP0_SRSCtl = env->cpu_model->CP0_SRSCtl;
+    env->current_tc = 0;
+    env->SEGBITS = env->cpu_model->SEGBITS;
+    env->SEGMask = (target_ulong)((1ULL << env->cpu_model->SEGBITS) - 1);
+#if defined(TARGET_MIPS64)
+    if (env->cpu_model->insn_flags & ISA_MIPS3) {
+        env->SEGMask |= 3ULL << 62;
+    }
+#endif
+    env->PABITS = env->cpu_model->PABITS;
+    env->PAMask = (target_ulong)((1ULL << env->cpu_model->PABITS) - 1);
+    env->CP0_SRSConf0_rw_bitmask = env->cpu_model->CP0_SRSConf0_rw_bitmask;
+    env->CP0_SRSConf0 = env->cpu_model->CP0_SRSConf0;
+    env->CP0_SRSConf1_rw_bitmask = env->cpu_model->CP0_SRSConf1_rw_bitmask;
+    env->CP0_SRSConf1 = env->cpu_model->CP0_SRSConf1;
+    env->CP0_SRSConf2_rw_bitmask = env->cpu_model->CP0_SRSConf2_rw_bitmask;
+    env->CP0_SRSConf2 = env->cpu_model->CP0_SRSConf2;
+    env->CP0_SRSConf3_rw_bitmask = env->cpu_model->CP0_SRSConf3_rw_bitmask;
+    env->CP0_SRSConf3 = env->cpu_model->CP0_SRSConf3;
+    env->CP0_SRSConf4_rw_bitmask = env->cpu_model->CP0_SRSConf4_rw_bitmask;
+    env->CP0_SRSConf4 = env->cpu_model->CP0_SRSConf4;
+    env->insn_flags = env->cpu_model->insn_flags;
+
 #if defined(CONFIG_USER_ONLY)
     env->hflags = MIPS_HFLAG_UM;
     /* Enable access to the SYNCI_Step register.  */
@@ -8632,6 +8673,8 @@ void cpu_reset (CPUMIPSState *env)
         env->CP0_ErrorEPC = env->active_tc.PC;
     }
     env->active_tc.PC = (int32_t)0xBFC00000;
+    env->CP0_Random = env->tlb->nb_tlb - 1;
+    env->tlb->tlb_in_use = env->tlb->nb_tlb;
     env->CP0_Wired = 0;
     /* SMP not implemented */
     env->CP0_EBase = 0x80000000;
@@ -8653,8 +8696,12 @@ void cpu_reset (CPUMIPSState *env)
     env->CP0_Debug = (1 << CP0DB_CNT) | (0x1 << CP0DB_VER);
     env->hflags = MIPS_HFLAG_CP0;
 #endif
+#if defined(TARGET_MIPS64)
+    if (env->cpu_model->insn_flags & ISA_MIPS3) {
+        env->hflags |= MIPS_HFLAG_64;
+    }
+#endif
     env->exception_index = EXCP_NONE;
-    cpu_mips_register(env, env->cpu_model);
 }
 
 void gen_pc_load(CPUState *env, TranslationBlock *tb,
diff --git a/target-mips/translate_init.c b/target-mips/translate_init.c
index eb35dba..088e2b4 100644
--- a/target-mips/translate_init.c
+++ b/target-mips/translate_init.c
@@ -481,8 +481,6 @@ static void mmu_init (CPUMIPSState *env, const mips_def_t *def)
         default:
             cpu_abort(env, "MMU type not supported\n");
     }
-    env->CP0_Random = env->tlb->nb_tlb - 1;
-    env->tlb->tlb_in_use = env->tlb->nb_tlb;
 }
 #endif /* CONFIG_USER_ONLY */
 
@@ -530,51 +528,3 @@ static void mvp_init (CPUMIPSState *env, const mips_def_t *def)
                              (0x0 << CP0MVPC1_PCX) | (0x0 << CP0MVPC1_PCP2) |
                              (0x1 << CP0MVPC1_PCP1);
 }
-
-static int cpu_mips_register (CPUMIPSState *env, const mips_def_t *def)
-{
-    env->CP0_PRid = def->CP0_PRid;
-    env->CP0_Config0 = def->CP0_Config0;
-#ifdef TARGET_WORDS_BIGENDIAN
-    env->CP0_Config0 |= (1 << CP0C0_BE);
-#endif
-    env->CP0_Config1 = def->CP0_Config1;
-    env->CP0_Config2 = def->CP0_Config2;
-    env->CP0_Config3 = def->CP0_Config3;
-    env->CP0_Config6 = def->CP0_Config6;
-    env->CP0_Config7 = def->CP0_Config7;
-    env->SYNCI_Step = def->SYNCI_Step;
-    env->CCRes = def->CCRes;
-    env->CP0_Status_rw_bitmask = def->CP0_Status_rw_bitmask;
-    env->CP0_TCStatus_rw_bitmask = def->CP0_TCStatus_rw_bitmask;
-    env->CP0_SRSCtl = def->CP0_SRSCtl;
-    env->current_tc = 0;
-    env->SEGBITS = def->SEGBITS;
-    env->SEGMask = (target_ulong)((1ULL << def->SEGBITS) - 1);
-#if defined(TARGET_MIPS64)
-    if (def->insn_flags & ISA_MIPS3) {
-        env->hflags |= MIPS_HFLAG_64;
-        env->SEGMask |= 3ULL << 62;
-    }
-#endif
-    env->PABITS = def->PABITS;
-    env->PAMask = (target_ulong)((1ULL << def->PABITS) - 1);
-    env->CP0_SRSConf0_rw_bitmask = def->CP0_SRSConf0_rw_bitmask;
-    env->CP0_SRSConf0 = def->CP0_SRSConf0;
-    env->CP0_SRSConf1_rw_bitmask = def->CP0_SRSConf1_rw_bitmask;
-    env->CP0_SRSConf1 = def->CP0_SRSConf1;
-    env->CP0_SRSConf2_rw_bitmask = def->CP0_SRSConf2_rw_bitmask;
-    env->CP0_SRSConf2 = def->CP0_SRSConf2;
-    env->CP0_SRSConf3_rw_bitmask = def->CP0_SRSConf3_rw_bitmask;
-    env->CP0_SRSConf3 = def->CP0_SRSConf3;
-    env->CP0_SRSConf4_rw_bitmask = def->CP0_SRSConf4_rw_bitmask;
-    env->CP0_SRSConf4 = def->CP0_SRSConf4;
-    env->insn_flags = def->insn_flags;
-
-#ifndef CONFIG_USER_ONLY
-    mmu_init(env, def);
-#endif
-    fpu_init(env, def);
-    mvp_init(env, def);
-    return 0;
-}