Merge remote-tracking branch 'remotes/afaerber/tags/qom-cpu-for-2.0' into staging

QOM CPUState refactorings / X86CPU

* Deadlock fix for exit requests around CPU reset
* X86CPU x2apic for KVM
* X86CPU model subclasses
* SPARCCPU preparations for model subclasses
* -cpu arguments for arm, cris, lm32, moxie, openrisc, ppc, sh4, uc32
* m68k assertion cleanups
* CPUClass hooks for cpu.h inline functions
* Field movements from CPU_COMMON to CPUState and follow-up cleanups

# gpg: Signature made Thu 13 Mar 2014 19:06:56 GMT using RSA key ID 3E7E013F
# gpg: Good signature from "Andreas Färber <afaerber@suse.de>"
# gpg:                 aka "Andreas Färber <afaerber@suse.com>"

* remotes/afaerber/tags/qom-cpu-for-2.0: (58 commits)
  user-exec: Change exception_action() argument to CPUState
  cputlb: Change tlb_set_page() argument to CPUState
  cputlb: Change tlb_flush() argument to CPUState
  cputlb: Change tlb_flush_page() argument to CPUState
  target-microblaze: Replace DisasContext::env field with MicroBlazeCPU
  target-cris: Replace DisasContext::env field with CRISCPU
  exec: Change cpu_abort() argument to CPUState
  exec: Change memory_region_section_get_iotlb() argument to CPUState
  cputlb: Change tlb_unprotect_code_phys() argument to CPUState
  cpu-exec: Change cpu_resume_from_signal() argument to CPUState
  exec: Change cpu_breakpoint_{insert,remove{,_by_ref,_all}} argument
  exec: Change cpu_watchpoint_{insert,remove{,_by_ref,_all}} argument
  target-ppc: Use PowerPCCPU in PowerPCCPUClass::handle_mmu_fault hook
  translate-all: Change tb_flush_jmp_cache() argument to CPUState
  translate-all: Change tb_gen_code() argument to CPUState
  translate-all: Change cpu_io_recompile() argument to CPUState
  translate-all: Change tb_check_watchpoint() argument to CPUState
  translate-all: Change cpu_restore_state_from_tb() argument to CPUState
  translate-all: Change cpu_restore_state() argument to CPUState
  cpu-exec: Change cpu_loop_exit() argument to CPUState
  ...

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

8 files changed, 115 insertions, 88 deletions

diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index c0687e3..6bc7999 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -2621,7 +2621,8 @@ static int write_note(struct memelfnote *men, int fd)
 
 static void fill_thread_info(struct elf_note_info *info, const CPUArchState *env)
 {
-    TaskState *ts = (TaskState *)env->opaque;
+    CPUState *cpu = ENV_GET_CPU((CPUArchState *)env);
+    TaskState *ts = (TaskState *)cpu->opaque;
     struct elf_thread_status *ets;
 
     ets = g_malloc0(sizeof (*ets));
@@ -2650,8 +2651,8 @@ static int fill_note_info(struct elf_note_info *info,
                           long signr, const CPUArchState *env)
 {
 #define NUMNOTES 3
-    CPUState *cpu = NULL;
-    TaskState *ts = (TaskState *)env->opaque;
+    CPUState *cpu = ENV_GET_CPU((CPUArchState *)env);
+    TaskState *ts = (TaskState *)cpu->opaque;
     int i;
 
     info->notes = g_malloc0(NUMNOTES * sizeof (struct memelfnote));
@@ -2775,7 +2776,8 @@ static int write_note_info(struct elf_note_info *info, int fd)
  */
 static int elf_core_dump(int signr, const CPUArchState *env)
 {
-    const TaskState *ts = (const TaskState *)env->opaque;
+    const CPUState *cpu = ENV_GET_CPU((CPUArchState *)env);
+    const TaskState *ts = (const TaskState *)cpu->opaque;
     struct vm_area_struct *vma = NULL;
     char corefile[PATH_MAX];
     struct elf_note_info info;
diff --git a/linux-user/linuxload.c b/linux-user/linuxload.c
index f2997c2..506e837 100644
--- a/linux-user/linuxload.c
+++ b/linux-user/linuxload.c
@@ -89,8 +89,7 @@ static int prepare_binprm(struct linux_binprm *bprm)
 abi_ulong loader_build_argptr(int envc, int argc, abi_ulong sp,
                               abi_ulong stringp, int push_ptr)
 {
-    CPUArchState *env = thread_cpu->env_ptr;
-    TaskState *ts = (TaskState *)env->opaque;
+    TaskState *ts = (TaskState *)thread_cpu->opaque;
     int n = sizeof(abi_ulong);
     abi_ulong envp;
     abi_ulong argv;
diff --git a/linux-user/m68k-sim.c b/linux-user/m68k-sim.c
index d5926ee..1994e40 100644
--- a/linux-user/m68k-sim.c
+++ b/linux-user/m68k-sim.c
@@ -98,6 +98,7 @@ static int translate_openflags(int flags)
 #define ARG(x) tswap32(args[x])
 void do_m68k_simcall(CPUM68KState *env, int nr)
 {
+    M68kCPU *cpu = m68k_env_get_cpu(env);
     uint32_t *args;
 
     args = (uint32_t *)(unsigned long)(env->aregs[7] + 4);
@@ -165,6 +166,6 @@ void do_m68k_simcall(CPUM68KState *env, int nr)
         check_err(env, lseek(ARG(0), (int32_t)ARG(1), ARG(2)));
         break;
     default:
-        cpu_abort(env, "Unsupported m68k sim syscall %d\n", nr);
+        cpu_abort(CPU(cpu), "Unsupported m68k sim syscall %d\n", nr);
     }
 }
diff --git a/linux-user/m68k/target_cpu.h b/linux-user/m68k/target_cpu.h
index cad9c90..bb4d3fa 100644
--- a/linux-user/m68k/target_cpu.h
+++ b/linux-user/m68k/target_cpu.h
@@ -31,7 +31,9 @@ static inline void cpu_clone_regs(CPUM68KState *env, target_ulong newsp)
 
 static inline void cpu_set_tls(CPUM68KState *env, target_ulong newtls)
 {
-    TaskState *ts = env->opaque;
+    CPUState *cs = CPU(m68k_env_get_cpu(env));
+    TaskState *ts = cs->opaque;
+
     ts->tp_value = newtls;
 }
 
diff --git a/linux-user/main.c b/linux-user/main.c
index dee1084..af924dc 100644
--- a/linux-user/main.c
+++ b/linux-user/main.c
@@ -685,7 +685,7 @@ void cpu_loop(CPUARMState *env)
         switch(trapnr) {
         case EXCP_UDEF:
             {
-                TaskState *ts = env->opaque;
+                TaskState *ts = cs->opaque;
                 uint32_t opcode;
                 int rc;
 
@@ -1577,11 +1577,11 @@ void cpu_loop(CPUPPCState *env)
             /* Just go on */
             break;
         case POWERPC_EXCP_CRITICAL: /* Critical input                        */
-            cpu_abort(env, "Critical interrupt while in user mode. "
+            cpu_abort(cs, "Critical interrupt while in user mode. "
                       "Aborting\n");
             break;
         case POWERPC_EXCP_MCHECK:   /* Machine check exception               */
-            cpu_abort(env, "Machine check exception while in user mode. "
+            cpu_abort(cs, "Machine check exception while in user mode. "
                       "Aborting\n");
             break;
         case POWERPC_EXCP_DSI:      /* Data storage exception                */
@@ -1645,7 +1645,7 @@ void cpu_loop(CPUPPCState *env)
             queue_signal(env, info.si_signo, &info);
             break;
         case POWERPC_EXCP_EXTERNAL: /* External input                        */
-            cpu_abort(env, "External interrupt while in user mode. "
+            cpu_abort(cs, "External interrupt while in user mode. "
                       "Aborting\n");
             break;
         case POWERPC_EXCP_ALIGN:    /* Alignment exception                   */
@@ -1739,11 +1739,11 @@ void cpu_loop(CPUPPCState *env)
                 }
                 break;
             case POWERPC_EXCP_TRAP:
-                cpu_abort(env, "Tried to call a TRAP\n");
+                cpu_abort(cs, "Tried to call a TRAP\n");
                 break;
             default:
                 /* Should not happen ! */
-                cpu_abort(env, "Unknown program exception (%02x)\n",
+                cpu_abort(cs, "Unknown program exception (%02x)\n",
                           env->error_code);
                 break;
             }
@@ -1759,7 +1759,7 @@ void cpu_loop(CPUPPCState *env)
             queue_signal(env, info.si_signo, &info);
             break;
         case POWERPC_EXCP_SYSCALL:  /* System call exception                 */
-            cpu_abort(env, "Syscall exception while in user mode. "
+            cpu_abort(cs, "Syscall exception while in user mode. "
                       "Aborting\n");
             break;
         case POWERPC_EXCP_APU:      /* Auxiliary processor unavailable       */
@@ -1771,23 +1771,23 @@ void cpu_loop(CPUPPCState *env)
             queue_signal(env, info.si_signo, &info);
             break;
         case POWERPC_EXCP_DECR:     /* Decrementer exception                 */
-            cpu_abort(env, "Decrementer interrupt while in user mode. "
+            cpu_abort(cs, "Decrementer interrupt while in user mode. "
                       "Aborting\n");
             break;
         case POWERPC_EXCP_FIT:      /* Fixed-interval timer interrupt        */
-            cpu_abort(env, "Fix interval timer interrupt while in user mode. "
+            cpu_abort(cs, "Fix interval timer interrupt while in user mode. "
                       "Aborting\n");
             break;
         case POWERPC_EXCP_WDT:      /* Watchdog timer interrupt              */
-            cpu_abort(env, "Watchdog timer interrupt while in user mode. "
+            cpu_abort(cs, "Watchdog timer interrupt while in user mode. "
                       "Aborting\n");
             break;
         case POWERPC_EXCP_DTLB:     /* Data TLB error                        */
-            cpu_abort(env, "Data TLB exception while in user mode. "
+            cpu_abort(cs, "Data TLB exception while in user mode. "
                       "Aborting\n");
             break;
         case POWERPC_EXCP_ITLB:     /* Instruction TLB error                 */
-            cpu_abort(env, "Instruction TLB exception while in user mode. "
+            cpu_abort(cs, "Instruction TLB exception while in user mode. "
                       "Aborting\n");
             break;
         case POWERPC_EXCP_SPEU:     /* SPE/embedded floating-point unavail.  */
@@ -1799,37 +1799,37 @@ void cpu_loop(CPUPPCState *env)
             queue_signal(env, info.si_signo, &info);
             break;
         case POWERPC_EXCP_EFPDI:    /* Embedded floating-point data IRQ      */
-            cpu_abort(env, "Embedded floating-point data IRQ not handled\n");
+            cpu_abort(cs, "Embedded floating-point data IRQ not handled\n");
             break;
         case POWERPC_EXCP_EFPRI:    /* Embedded floating-point round IRQ     */
-            cpu_abort(env, "Embedded floating-point round IRQ not handled\n");
+            cpu_abort(cs, "Embedded floating-point round IRQ not handled\n");
             break;
         case POWERPC_EXCP_EPERFM:   /* Embedded performance monitor IRQ      */
-            cpu_abort(env, "Performance monitor exception not handled\n");
+            cpu_abort(cs, "Performance monitor exception not handled\n");
             break;
         case POWERPC_EXCP_DOORI:    /* Embedded doorbell interrupt           */
-            cpu_abort(env, "Doorbell interrupt while in user mode. "
+            cpu_abort(cs, "Doorbell interrupt while in user mode. "
                        "Aborting\n");
             break;
         case POWERPC_EXCP_DOORCI:   /* Embedded doorbell critical interrupt  */
-            cpu_abort(env, "Doorbell critical interrupt while in user mode. "
+            cpu_abort(cs, "Doorbell critical interrupt while in user mode. "
                       "Aborting\n");
             break;
         case POWERPC_EXCP_RESET:    /* System reset exception                */
-            cpu_abort(env, "Reset interrupt while in user mode. "
+            cpu_abort(cs, "Reset interrupt while in user mode. "
                       "Aborting\n");
             break;
         case POWERPC_EXCP_DSEG:     /* Data segment exception                */
-            cpu_abort(env, "Data segment exception while in user mode. "
+            cpu_abort(cs, "Data segment exception while in user mode. "
                       "Aborting\n");
             break;
         case POWERPC_EXCP_ISEG:     /* Instruction segment exception         */
-            cpu_abort(env, "Instruction segment exception "
+            cpu_abort(cs, "Instruction segment exception "
                       "while in user mode. Aborting\n");
             break;
         /* PowerPC 64 with hypervisor mode support */
         case POWERPC_EXCP_HDECR:    /* Hypervisor decrementer exception      */
-            cpu_abort(env, "Hypervisor decrementer interrupt "
+            cpu_abort(cs, "Hypervisor decrementer interrupt "
                       "while in user mode. Aborting\n");
             break;
         case POWERPC_EXCP_TRACE:    /* Trace exception                       */
@@ -1839,19 +1839,19 @@ void cpu_loop(CPUPPCState *env)
             break;
         /* PowerPC 64 with hypervisor mode support */
         case POWERPC_EXCP_HDSI:     /* Hypervisor data storage exception     */
-            cpu_abort(env, "Hypervisor data storage exception "
+            cpu_abort(cs, "Hypervisor data storage exception "
                       "while in user mode. Aborting\n");
             break;
         case POWERPC_EXCP_HISI:     /* Hypervisor instruction storage excp   */
-            cpu_abort(env, "Hypervisor instruction storage exception "
+            cpu_abort(cs, "Hypervisor instruction storage exception "
                       "while in user mode. Aborting\n");
             break;
         case POWERPC_EXCP_HDSEG:    /* Hypervisor data segment exception     */
-            cpu_abort(env, "Hypervisor data segment exception "
+            cpu_abort(cs, "Hypervisor data segment exception "
                       "while in user mode. Aborting\n");
             break;
         case POWERPC_EXCP_HISEG:    /* Hypervisor instruction segment excp   */
-            cpu_abort(env, "Hypervisor instruction segment exception "
+            cpu_abort(cs, "Hypervisor instruction segment exception "
                       "while in user mode. Aborting\n");
             break;
         case POWERPC_EXCP_VPU:      /* Vector unavailable exception          */
@@ -1863,58 +1863,58 @@ void cpu_loop(CPUPPCState *env)
             queue_signal(env, info.si_signo, &info);
             break;
         case POWERPC_EXCP_PIT:      /* Programmable interval timer IRQ       */
-            cpu_abort(env, "Programmable interval timer interrupt "
+            cpu_abort(cs, "Programmable interval timer interrupt "
                       "while in user mode. Aborting\n");
             break;
         case POWERPC_EXCP_IO:       /* IO error exception                    */
-            cpu_abort(env, "IO error exception while in user mode. "
+            cpu_abort(cs, "IO error exception while in user mode. "
                       "Aborting\n");
             break;
         case POWERPC_EXCP_RUNM:     /* Run mode exception                    */
-            cpu_abort(env, "Run mode exception while in user mode. "
+            cpu_abort(cs, "Run mode exception while in user mode. "
                       "Aborting\n");
             break;
         case POWERPC_EXCP_EMUL:     /* Emulation trap exception              */
-            cpu_abort(env, "Emulation trap exception not handled\n");
+            cpu_abort(cs, "Emulation trap exception not handled\n");
             break;
         case POWERPC_EXCP_IFTLB:    /* Instruction fetch TLB error           */
-            cpu_abort(env, "Instruction fetch TLB exception "
+            cpu_abort(cs, "Instruction fetch TLB exception "
                       "while in user-mode. Aborting");
             break;
         case POWERPC_EXCP_DLTLB:    /* Data load TLB miss                    */
-            cpu_abort(env, "Data load TLB exception while in user-mode. "
+            cpu_abort(cs, "Data load TLB exception while in user-mode. "
                       "Aborting");
             break;
         case POWERPC_EXCP_DSTLB:    /* Data store TLB miss                   */
-            cpu_abort(env, "Data store TLB exception while in user-mode. "
+            cpu_abort(cs, "Data store TLB exception while in user-mode. "
                       "Aborting");
             break;
         case POWERPC_EXCP_FPA:      /* Floating-point assist exception       */
-            cpu_abort(env, "Floating-point assist exception not handled\n");
+            cpu_abort(cs, "Floating-point assist exception not handled\n");
             break;
         case POWERPC_EXCP_IABR:     /* Instruction address breakpoint        */
-            cpu_abort(env, "Instruction address breakpoint exception "
+            cpu_abort(cs, "Instruction address breakpoint exception "
                       "not handled\n");
             break;
         case POWERPC_EXCP_SMI:      /* System management interrupt           */
-            cpu_abort(env, "System management interrupt while in user mode. "
+            cpu_abort(cs, "System management interrupt while in user mode. "
                       "Aborting\n");
             break;
         case POWERPC_EXCP_THERM:    /* Thermal interrupt                     */
-            cpu_abort(env, "Thermal interrupt interrupt while in user mode. "
+            cpu_abort(cs, "Thermal interrupt interrupt while in user mode. "
                       "Aborting\n");
             break;
         case POWERPC_EXCP_PERFM:   /* Embedded performance monitor IRQ      */
-            cpu_abort(env, "Performance monitor exception not handled\n");
+            cpu_abort(cs, "Performance monitor exception not handled\n");
             break;
         case POWERPC_EXCP_VPUA:     /* Vector assist exception               */
-            cpu_abort(env, "Vector assist exception not handled\n");
+            cpu_abort(cs, "Vector assist exception not handled\n");
             break;
         case POWERPC_EXCP_SOFTP:    /* Soft patch exception                  */
-            cpu_abort(env, "Soft patch exception not handled\n");
+            cpu_abort(cs, "Soft patch exception not handled\n");
             break;
         case POWERPC_EXCP_MAINT:    /* Maintenance exception                 */
-            cpu_abort(env, "Maintenance exception while in user mode. "
+            cpu_abort(cs, "Maintenance exception while in user mode. "
                       "Aborting\n");
             break;
         case POWERPC_EXCP_STOP:     /* stop translation                      */
@@ -1970,7 +1970,7 @@ void cpu_loop(CPUPPCState *env)
             /* just indicate that signals should be handled asap */
             break;
         default:
-            cpu_abort(env, "Unknown exception 0x%d. Aborting\n", trapnr);
+            cpu_abort(cs, "Unknown exception 0x%d. Aborting\n", trapnr);
             break;
         }
         process_pending_signals(env);
@@ -2965,7 +2965,7 @@ void cpu_loop(CPUM68KState *env)
     int trapnr;
     unsigned int n;
     target_siginfo_t info;
-    TaskState *ts = env->opaque;
+    TaskState *ts = cs->opaque;
 
     for(;;) {
         trapnr = cpu_m68k_exec(env);
@@ -3435,28 +3435,30 @@ void init_task_state(TaskState *ts)
 
 CPUArchState *cpu_copy(CPUArchState *env)
 {
+    CPUState *cpu = ENV_GET_CPU(env);
     CPUArchState *new_env = cpu_init(cpu_model);
+    CPUState *new_cpu = ENV_GET_CPU(new_env);
 #if defined(TARGET_HAS_ICE)
     CPUBreakpoint *bp;
     CPUWatchpoint *wp;
 #endif
 
     /* Reset non arch specific state */
-    cpu_reset(ENV_GET_CPU(new_env));
+    cpu_reset(new_cpu);
 
     memcpy(new_env, env, sizeof(CPUArchState));
 
     /* Clone all break/watchpoints.
        Note: Once we support ptrace with hw-debug register access, make sure
        BP_CPU break/watchpoints are handled correctly on clone. */
-    QTAILQ_INIT(&env->breakpoints);
-    QTAILQ_INIT(&env->watchpoints);
+    QTAILQ_INIT(&cpu->breakpoints);
+    QTAILQ_INIT(&cpu->watchpoints);
 #if defined(TARGET_HAS_ICE)
-    QTAILQ_FOREACH(bp, &env->breakpoints, entry) {
-        cpu_breakpoint_insert(new_env, bp->pc, bp->flags, NULL);
+    QTAILQ_FOREACH(bp, &cpu->breakpoints, entry) {
+        cpu_breakpoint_insert(new_cpu, bp->pc, bp->flags, NULL);
     }
-    QTAILQ_FOREACH(wp, &env->watchpoints, entry) {
-        cpu_watchpoint_insert(new_env, wp->vaddr, (~wp->len_mask) + 1,
+    QTAILQ_FOREACH(wp, &cpu->watchpoints, entry) {
+        cpu_watchpoint_insert(new_cpu, wp->vaddr, (~wp->len_mask) + 1,
                               wp->flags, NULL);
     }
 #endif
@@ -4001,7 +4003,7 @@ int main(int argc, char **argv, char **envp)
     /* build Task State */
     ts->info = info;
     ts->bprm = &bprm;
-    env->opaque = ts;
+    cpu->opaque = ts;
     task_settid(ts);
 
     execfd = qemu_getauxval(AT_EXECFD);
diff --git a/linux-user/signal.c b/linux-user/signal.c
index c8a1da0..24c91f3 100644
--- a/linux-user/signal.c
+++ b/linux-user/signal.c
@@ -370,7 +370,8 @@ void signal_init(void)
 
 static inline struct sigqueue *alloc_sigqueue(CPUArchState *env)
 {
-    TaskState *ts = env->opaque;
+    CPUState *cpu = ENV_GET_CPU(env);
+    TaskState *ts = cpu->opaque;
     struct sigqueue *q = ts->first_free;
     if (!q)
         return NULL;
@@ -380,7 +381,9 @@ static inline struct sigqueue *alloc_sigqueue(CPUArchState *env)
 
 static inline void free_sigqueue(CPUArchState *env, struct sigqueue *q)
 {
-    TaskState *ts = env->opaque;
+    CPUState *cpu = ENV_GET_CPU(env);
+    TaskState *ts = cpu->opaque;
+
     q->next = ts->first_free;
     ts->first_free = q;
 }
@@ -388,8 +391,9 @@ static inline void free_sigqueue(CPUArchState *env, struct sigqueue *q)
 /* abort execution with signal */
 static void QEMU_NORETURN force_sig(int target_sig)
 {
-    CPUArchState *env = thread_cpu->env_ptr;
-    TaskState *ts = (TaskState *)env->opaque;
+    CPUState *cpu = thread_cpu;
+    CPUArchState *env = cpu->env_ptr;
+    TaskState *ts = (TaskState *)cpu->opaque;
     int host_sig, core_dumped = 0;
     struct sigaction act;
     host_sig = target_to_host_signal(target_sig);
@@ -440,7 +444,8 @@ static void QEMU_NORETURN force_sig(int target_sig)
    as possible */
 int queue_signal(CPUArchState *env, int sig, target_siginfo_t *info)
 {
-    TaskState *ts = env->opaque;
+    CPUState *cpu = ENV_GET_CPU(env);
+    TaskState *ts = cpu->opaque;
     struct emulated_sigtable *k;
     struct sigqueue *q, **pq;
     abi_ulong handler;
@@ -774,8 +779,9 @@ static int
 setup_sigcontext(struct target_sigcontext *sc, struct target_fpstate *fpstate,
 		 CPUX86State *env, abi_ulong mask, abi_ulong fpstate_addr)
 {
-	int err = 0;
-        uint16_t magic;
+    CPUState *cs = CPU(x86_env_get_cpu(env));
+    int err = 0;
+    uint16_t magic;
 
 	/* already locked in setup_frame() */
 	err |= __put_user(env->segs[R_GS].selector, (unsigned int *)&sc->gs);
@@ -790,7 +796,7 @@ setup_sigcontext(struct target_sigcontext *sc, struct target_fpstate *fpstate,
 	err |= __put_user(env->regs[R_EDX], &sc->edx);
 	err |= __put_user(env->regs[R_ECX], &sc->ecx);
 	err |= __put_user(env->regs[R_EAX], &sc->eax);
-	err |= __put_user(env->exception_index, &sc->trapno);
+    err |= __put_user(cs->exception_index, &sc->trapno);
 	err |= __put_user(env->error_code, &sc->err);
 	err |= __put_user(env->eip, &sc->eip);
 	err |= __put_user(env->segs[R_CS].selector, (unsigned int *)&sc->cs);
@@ -5675,7 +5681,7 @@ void process_pending_signals(CPUArchState *cpu_env)
     struct emulated_sigtable *k;
     struct target_sigaction *sa;
     struct sigqueue *q;
-    TaskState *ts = cpu_env->opaque;
+    TaskState *ts = cpu->opaque;
 
     if (!ts->signal_pending)
         return;
diff --git a/linux-user/syscall.c b/linux-user/syscall.c
index e2c10cc..ffc11de 100644
--- a/linux-user/syscall.c
+++ b/linux-user/syscall.c
@@ -4243,7 +4243,7 @@ static void *clone_func(void *arg)
     env = info->env;
     cpu = ENV_GET_CPU(env);
     thread_cpu = cpu;
-    ts = (TaskState *)env->opaque;
+    ts = (TaskState *)cpu->opaque;
     info->tid = gettid();
     cpu->host_tid = info->tid;
     task_settid(ts);
@@ -4271,8 +4271,10 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
                    abi_ulong parent_tidptr, target_ulong newtls,
                    abi_ulong child_tidptr)
 {
+    CPUState *cpu = ENV_GET_CPU(env);
     int ret;
     TaskState *ts;
+    CPUState *new_cpu;
     CPUArchState *new_env;
     unsigned int nptl_flags;
     sigset_t sigmask;
@@ -4282,7 +4284,7 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
         flags &= ~(CLONE_VFORK | CLONE_VM);
 
     if (flags & CLONE_VM) {
-        TaskState *parent_ts = (TaskState *)env->opaque;
+        TaskState *parent_ts = (TaskState *)cpu->opaque;
         new_thread_info info;
         pthread_attr_t attr;
 
@@ -4292,7 +4294,8 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
         new_env = cpu_copy(env);
         /* Init regs that differ from the parent.  */
         cpu_clone_regs(new_env, newsp);
-        new_env->opaque = ts;
+        new_cpu = ENV_GET_CPU(new_env);
+        new_cpu->opaque = ts;
         ts->bprm = parent_ts->bprm;
         ts->info = parent_ts->info;
         nptl_flags = flags;
@@ -4364,7 +4367,7 @@ static int do_fork(CPUArchState *env, unsigned int flags, abi_ulong newsp,
                 put_user_u32(gettid(), child_tidptr);
             if (flags & CLONE_PARENT_SETTID)
                 put_user_u32(gettid(), parent_tidptr);
-            ts = (TaskState *)env->opaque;
+            ts = (TaskState *)cpu->opaque;
             if (flags & CLONE_SETTLS)
                 cpu_set_tls (env, newtls);
             if (flags & CLONE_CHILD_CLEARTID)
@@ -4974,7 +4977,8 @@ void init_qemu_uname_release(void)
 static int open_self_maps(void *cpu_env, int fd)
 {
 #if defined(TARGET_ARM) || defined(TARGET_M68K) || defined(TARGET_UNICORE32)
-    TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
+    CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
+    TaskState *ts = cpu->opaque;
 #endif
     FILE *fp;
     char *line = NULL;
@@ -5026,7 +5030,8 @@ static int open_self_maps(void *cpu_env, int fd)
 
 static int open_self_stat(void *cpu_env, int fd)
 {
-    TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
+    CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
+    TaskState *ts = cpu->opaque;
     abi_ulong start_stack = ts->info->start_stack;
     int i;
 
@@ -5062,7 +5067,8 @@ static int open_self_stat(void *cpu_env, int fd)
 
 static int open_self_auxv(void *cpu_env, int fd)
 {
-    TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
+    CPUState *cpu = ENV_GET_CPU((CPUArchState *)cpu_env);
+    TaskState *ts = cpu->opaque;
     abi_ulong auxv = ts->info->saved_auxv;
     abi_ulong len = ts->info->auxv_len;
     char *ptr;
@@ -5244,14 +5250,14 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
             /* Remove the CPU from the list.  */
             QTAILQ_REMOVE(&cpus, cpu, node);
             cpu_list_unlock();
-            ts = ((CPUArchState *)cpu_env)->opaque;
+            ts = cpu->opaque;
             if (ts->child_tidptr) {
                 put_user_u32(0, ts->child_tidptr);
                 sys_futex(g2h(ts->child_tidptr), FUTEX_WAKE, INT_MAX,
                           NULL, NULL, 0);
             }
             thread_cpu = NULL;
-            object_unref(OBJECT(ENV_GET_CPU(cpu_env)));
+            object_unref(OBJECT(cpu));
             g_free(ts);
             pthread_exit(NULL);
         }
@@ -6555,7 +6561,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
         break;
     case TARGET_NR_mprotect:
         {
-            TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
+            TaskState *ts = cpu->opaque;
             /* Special hack to detect libc making the stack executable.  */
             if ((arg3 & PROT_GROWSDOWN)
                 && arg1 >= ts->info->stack_limit
@@ -8647,7 +8653,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
       break;
 #elif defined(TARGET_M68K)
       {
-          TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
+          TaskState *ts = cpu->opaque;
           ts->tp_value = arg1;
           ret = 0;
           break;
@@ -8663,7 +8669,7 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1,
         break;
 #elif defined(TARGET_M68K)
         {
-            TaskState *ts = ((CPUArchState *)cpu_env)->opaque;
+            TaskState *ts = cpu->opaque;
             ret = ts->tp_value;
             break;
         }
diff --git a/linux-user/vm86.c b/linux-user/vm86.c
index 2c4ffeb..45ef559 100644
--- a/linux-user/vm86.c
+++ b/linux-user/vm86.c
@@ -72,7 +72,8 @@ static inline unsigned int vm_getl(uint32_t segptr, unsigned int reg16)
 
 void save_v86_state(CPUX86State *env)
 {
-    TaskState *ts = env->opaque;
+    CPUState *cs = CPU(x86_env_get_cpu(env));
+    TaskState *ts = cs->opaque;
     struct target_vm86plus_struct * target_v86;
 
     if (!lock_user_struct(VERIFY_WRITE, target_v86, ts->target_v86, 0))
@@ -131,7 +132,8 @@ static inline void return_to_32bit(CPUX86State *env, int retval)
 
 static inline int set_IF(CPUX86State *env)
 {
-    TaskState *ts = env->opaque;
+    CPUState *cs = CPU(x86_env_get_cpu(env));
+    TaskState *ts = cs->opaque;
 
     ts->v86flags |= VIF_MASK;
     if (ts->v86flags & VIP_MASK) {
@@ -143,7 +145,8 @@ static inline int set_IF(CPUX86State *env)
 
 static inline void clear_IF(CPUX86State *env)
 {
-    TaskState *ts = env->opaque;
+    CPUState *cs = CPU(x86_env_get_cpu(env));
+    TaskState *ts = cs->opaque;
 
     ts->v86flags &= ~VIF_MASK;
 }
@@ -160,7 +163,8 @@ static inline void clear_AC(CPUX86State *env)
 
 static inline int set_vflags_long(unsigned long eflags, CPUX86State *env)
 {
-    TaskState *ts = env->opaque;
+    CPUState *cs = CPU(x86_env_get_cpu(env));
+    TaskState *ts = cs->opaque;
 
     set_flags(ts->v86flags, eflags, ts->v86mask);
     set_flags(env->eflags, eflags, SAFE_MASK);
@@ -173,7 +177,8 @@ static inline int set_vflags_long(unsigned long eflags, CPUX86State *env)
 
 static inline int set_vflags_short(unsigned short flags, CPUX86State *env)
 {
-    TaskState *ts = env->opaque;
+    CPUState *cs = CPU(x86_env_get_cpu(env));
+    TaskState *ts = cs->opaque;
 
     set_flags(ts->v86flags, flags, ts->v86mask & 0xffff);
     set_flags(env->eflags, flags, SAFE_MASK);
@@ -186,7 +191,8 @@ static inline int set_vflags_short(unsigned short flags, CPUX86State *env)
 
 static inline unsigned int get_vflags(CPUX86State *env)
 {
-    TaskState *ts = env->opaque;
+    CPUState *cs = CPU(x86_env_get_cpu(env));
+    TaskState *ts = cs->opaque;
     unsigned int flags;
 
     flags = env->eflags & RETURN_MASK;
@@ -202,7 +208,8 @@ static inline unsigned int get_vflags(CPUX86State *env)
    support TSS interrupt revectoring, so this code is always executed) */
 static void do_int(CPUX86State *env, int intno)
 {
-    TaskState *ts = env->opaque;
+    CPUState *cs = CPU(x86_env_get_cpu(env));
+    TaskState *ts = cs->opaque;
     uint32_t int_addr, segoffs, ssp;
     unsigned int sp;
 
@@ -260,7 +267,8 @@ void handle_vm86_trap(CPUX86State *env, int trapno)
 
 void handle_vm86_fault(CPUX86State *env)
 {
-    TaskState *ts = env->opaque;
+    CPUState *cs = CPU(x86_env_get_cpu(env));
+    TaskState *ts = cs->opaque;
     uint32_t csp, ssp;
     unsigned int ip, sp, newflags, newip, newcs, opcode, intno;
     int data32, pref_done;
@@ -384,7 +392,8 @@ void handle_vm86_fault(CPUX86State *env)
 
 int do_vm86(CPUX86State *env, long subfunction, abi_ulong vm86_addr)
 {
-    TaskState *ts = env->opaque;
+    CPUState *cs = CPU(x86_env_get_cpu(env));
+    TaskState *ts = cs->opaque;
     struct target_vm86plus_struct * target_v86;
     int ret;