From 4fdeee7cd4c8f90ef765537b9346a195d9483ab5 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Andreas=20F=C3=A4rber?= <afaerber@suse.de>
Date: Wed, 2 May 2012 23:10:09 +0200
Subject: [PATCH] cpu: Move stop field to CPUState
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Change its type to bool.

Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 cpu-defs.h         |  1 -
 cpus.c             | 27 ++++++++++++++++++---------
 include/qemu/cpu.h |  2 ++
 3 files changed, 20 insertions(+), 10 deletions(-)

diff --git a/cpu-defs.h b/cpu-defs.h
index 3b8bc20329..7a6378c5a1 100644
--- a/cpu-defs.h
+++ b/cpu-defs.h
@@ -205,7 +205,6 @@ typedef struct CPUWatchpoint {
     /* user data */                                                     \
     void *opaque;                                                       \
                                                                         \
-    uint32_t stop;   /* Stop request */                                 \
     uint32_t stopped; /* Artificially stopped */                        \
     struct QemuCond *halt_cond;                                         \
     struct qemu_work_item *queued_work_first, *queued_work_last;        \
diff --git a/cpus.c b/cpus.c
index 8abaa69d41..2341ebb68c 100644
--- a/cpus.c
+++ b/cpus.c
@@ -64,7 +64,9 @@ static CPUArchState *next_cpu;
 
 static bool cpu_thread_is_idle(CPUArchState *env)
 {
-    if (env->stop || env->queued_work_first) {
+    CPUState *cpu = ENV_GET_CPU(env);
+
+    if (cpu->stop || env->queued_work_first) {
         return false;
     }
     if (env->stopped || !runstate_is_running()) {
@@ -448,7 +450,9 @@ static void do_vm_stop(RunState state)
 
 static int cpu_can_run(CPUArchState *env)
 {
-    if (env->stop) {
+    CPUState *cpu = ENV_GET_CPU(env);
+
+    if (cpu->stop) {
         return 0;
     }
     if (env->stopped || !runstate_is_running()) {
@@ -687,8 +691,8 @@ static void qemu_wait_io_event_common(CPUArchState *env)
 {
     CPUState *cpu = ENV_GET_CPU(env);
 
-    if (env->stop) {
-        env->stop = 0;
+    if (cpu->stop) {
+        cpu->stop = false;
         env->stopped = 1;
         qemu_cond_signal(&qemu_pause_cond);
     }
@@ -941,7 +945,8 @@ void pause_all_vcpus(void)
 
     qemu_clock_enable(vm_clock, false);
     while (penv) {
-        penv->stop = 1;
+        CPUState *pcpu = ENV_GET_CPU(penv);
+        pcpu->stop = true;
         qemu_cpu_kick(penv);
         penv = penv->next_cpu;
     }
@@ -950,7 +955,8 @@ void pause_all_vcpus(void)
         cpu_stop_current();
         if (!kvm_enabled()) {
             while (penv) {
-                penv->stop = 0;
+                CPUState *pcpu = ENV_GET_CPU(penv);
+                pcpu->stop = 0;
                 penv->stopped = 1;
                 penv = penv->next_cpu;
             }
@@ -974,7 +980,8 @@ void resume_all_vcpus(void)
 
     qemu_clock_enable(vm_clock, true);
     while (penv) {
-        penv->stop = 0;
+        CPUState *pcpu = ENV_GET_CPU(penv);
+        pcpu->stop = false;
         penv->stopped = 0;
         qemu_cpu_kick(penv);
         penv = penv->next_cpu;
@@ -1054,7 +1061,8 @@ void qemu_init_vcpu(void *_env)
 void cpu_stop_current(void)
 {
     if (cpu_single_env) {
-        cpu_single_env->stop = 0;
+        CPUState *cpu_single_cpu = ENV_GET_CPU(cpu_single_env);
+        cpu_single_cpu->stop = false;
         cpu_single_env->stopped = 1;
         cpu_exit(cpu_single_env);
         qemu_cond_signal(&qemu_pause_cond);
@@ -1136,6 +1144,7 @@ static void tcg_exec_all(void)
     }
     for (; next_cpu != NULL && !exit_request; next_cpu = next_cpu->next_cpu) {
         CPUArchState *env = next_cpu;
+        CPUState *cpu = ENV_GET_CPU(env);
 
         qemu_clock_enable(vm_clock,
                           (env->singlestep_enabled & SSTEP_NOTIMER) == 0);
@@ -1146,7 +1155,7 @@ static void tcg_exec_all(void)
                 cpu_handle_guest_debug(env);
                 break;
             }
-        } else if (env->stop || env->stopped) {
+        } else if (cpu->stop || env->stopped) {
             break;
         }
     }
diff --git a/include/qemu/cpu.h b/include/qemu/cpu.h
index 3ab2e2567f..04c7848b8f 100644
--- a/include/qemu/cpu.h
+++ b/include/qemu/cpu.h
@@ -55,6 +55,7 @@ typedef struct CPUClass {
 /**
  * CPUState:
  * @created: Indicates whether the CPU thread has been successfully created.
+ * @stop: Indicates a pending stop request.
  *
  * State of one CPU core or thread.
  */
@@ -69,6 +70,7 @@ struct CPUState {
 #endif
     bool thread_kicked;
     bool created;
+    bool stop;
 
     /* TODO Move common fields from CPUArchState here. */
 };