Patchwork [for-1.2,3/4] cpu: Move thread field into CPUState

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Submitter Andreas Färber
Date Aug. 2, 2012, 12:48 a.m.
Message ID <1343868517-11852-4-git-send-email-afaerber@suse.de>
Download mbox | patch
Permalink /patch/174636/
State New
Headers show

Comments

Andreas Färber - Aug. 2, 2012, 12:48 a.m.
Signed-off-by: Andreas Färber <afaerber@suse.de>
---
 cpu-defs.h         |    1 -
 cpus.c             |   40 +++++++++++++++++++++++-----------------
 include/qemu/cpu.h |    1 +
 3 files changed, 24 insertions(+), 18 deletions(-)

Patch

diff --git a/cpu-defs.h b/cpu-defs.h
index d0dd781..be89684 100644
--- a/cpu-defs.h
+++ b/cpu-defs.h
@@ -208,7 +208,6 @@  typedef struct CPUWatchpoint {
     uint32_t created;                                                   \
     uint32_t stop;   /* Stop request */                                 \
     uint32_t stopped; /* Artificially stopped */                        \
-    struct QemuThread *thread;                                          \
     struct QemuCond *halt_cond;                                         \
     int thread_kicked;                                                  \
     struct qemu_work_item *queued_work_first, *queued_work_last;        \
diff --git a/cpus.c b/cpus.c
index 7042fb5..565abb4 100644
--- a/cpus.c
+++ b/cpus.c
@@ -728,10 +728,11 @@  static void qemu_kvm_wait_io_event(CPUArchState *env)
 static void *qemu_kvm_cpu_thread_fn(void *arg)
 {
     CPUArchState *env = arg;
+    CPUState *cpu = ENV_GET_CPU(env);
     int r;
 
     qemu_mutex_lock(&qemu_global_mutex);
-    qemu_thread_get_self(env->thread);
+    qemu_thread_get_self(cpu->thread);
     env->thread_id = qemu_get_thread_id();
     cpu_single_env = env;
 
@@ -767,11 +768,12 @@  static void *qemu_dummy_cpu_thread_fn(void *arg)
     exit(1);
 #else
     CPUArchState *env = arg;
+    CPUState *cpu = ENV_GET_CPU(env);
     sigset_t waitset;
     int r;
 
     qemu_mutex_lock_iothread();
-    qemu_thread_get_self(env->thread);
+    qemu_thread_get_self(cpu->thread);
     env->thread_id = qemu_get_thread_id();
 
     sigemptyset(&waitset);
@@ -807,9 +809,10 @@  static void tcg_exec_all(void);
 static void *qemu_tcg_cpu_thread_fn(void *arg)
 {
     CPUArchState *env = arg;
+    CPUState *cpu = ENV_GET_CPU(env);
 
     qemu_tcg_init_cpu_signals();
-    qemu_thread_get_self(env->thread);
+    qemu_thread_get_self(cpu->thread);
 
     /* signal CPU creation */
     qemu_mutex_lock(&qemu_global_mutex);
@@ -842,17 +845,17 @@  static void *qemu_tcg_cpu_thread_fn(void *arg)
 
 static void qemu_cpu_kick_thread(CPUArchState *env)
 {
+    CPUState *cpu = ENV_GET_CPU(env);
 #ifndef _WIN32
     int err;
 
-    err = pthread_kill(env->thread->thread, SIG_IPI);
+    err = pthread_kill(cpu->thread->thread, SIG_IPI);
     if (err) {
         fprintf(stderr, "qemu:%s: %s", __func__, strerror(err));
         exit(1);
     }
 #else /* _WIN32 */
     if (!qemu_cpu_is_self(env)) {
-        CPUState *cpu = ENV_GET_CPU(env);
         SuspendThread(cpu->hThread);
         cpu_signal(0);
         ResumeThread(cpu->hThread);
@@ -888,8 +891,9 @@  void qemu_cpu_kick_self(void)
 int qemu_cpu_is_self(void *_env)
 {
     CPUArchState *env = _env;
+    CPUState *cpu = ENV_GET_CPU(env);
 
-    return qemu_thread_is_self(env->thread);
+    return qemu_thread_is_self(cpu->thread);
 }
 
 void qemu_mutex_lock_iothread(void)
@@ -975,37 +979,37 @@  void resume_all_vcpus(void)
 static void qemu_tcg_init_vcpu(void *_env)
 {
     CPUArchState *env = _env;
-#ifdef _WIN32
     CPUState *cpu = ENV_GET_CPU(env);
-#endif
 
     /* share a single thread for all cpus with TCG */
     if (!tcg_cpu_thread) {
-        env->thread = g_malloc0(sizeof(QemuThread));
+        cpu->thread = g_malloc0(sizeof(QemuThread));
         env->halt_cond = g_malloc0(sizeof(QemuCond));
         qemu_cond_init(env->halt_cond);
         tcg_halt_cond = env->halt_cond;
-        qemu_thread_create(env->thread, qemu_tcg_cpu_thread_fn, env,
+        qemu_thread_create(cpu->thread, qemu_tcg_cpu_thread_fn, env,
                            QEMU_THREAD_JOINABLE);
 #ifdef _WIN32
-        cpu->hThread = qemu_thread_get_handle(env->thread);
+        cpu->hThread = qemu_thread_get_handle(cpu->thread);
 #endif
         while (env->created == 0) {
             qemu_cond_wait(&qemu_cpu_cond, &qemu_global_mutex);
         }
-        tcg_cpu_thread = env->thread;
+        tcg_cpu_thread = cpu->thread;
     } else {
-        env->thread = tcg_cpu_thread;
+        cpu->thread = tcg_cpu_thread;
         env->halt_cond = tcg_halt_cond;
     }
 }
 
 static void qemu_kvm_start_vcpu(CPUArchState *env)
 {
-    env->thread = g_malloc0(sizeof(QemuThread));
+    CPUState *cpu = ENV_GET_CPU(env);
+
+    cpu->thread = g_malloc0(sizeof(QemuThread));
     env->halt_cond = g_malloc0(sizeof(QemuCond));
     qemu_cond_init(env->halt_cond);
-    qemu_thread_create(env->thread, qemu_kvm_cpu_thread_fn, env,
+    qemu_thread_create(cpu->thread, qemu_kvm_cpu_thread_fn, env,
                        QEMU_THREAD_JOINABLE);
     while (env->created == 0) {
         qemu_cond_wait(&qemu_cpu_cond, &qemu_global_mutex);
@@ -1014,10 +1018,12 @@  static void qemu_kvm_start_vcpu(CPUArchState *env)
 
 static void qemu_dummy_start_vcpu(CPUArchState *env)
 {
-    env->thread = g_malloc0(sizeof(QemuThread));
+    CPUState *cpu = ENV_GET_CPU(env);
+
+    cpu->thread = g_malloc0(sizeof(QemuThread));
     env->halt_cond = g_malloc0(sizeof(QemuCond));
     qemu_cond_init(env->halt_cond);
-    qemu_thread_create(env->thread, qemu_dummy_cpu_thread_fn, env,
+    qemu_thread_create(cpu->thread, qemu_dummy_cpu_thread_fn, env,
                        QEMU_THREAD_JOINABLE);
     while (env->created == 0) {
         qemu_cond_wait(&qemu_cpu_cond, &qemu_global_mutex);
diff --git a/include/qemu/cpu.h b/include/qemu/cpu.h
index 5d52e1c..d20644b 100644
--- a/include/qemu/cpu.h
+++ b/include/qemu/cpu.h
@@ -62,6 +62,7 @@  struct CPUState {
     Object parent_obj;
     /*< public >*/
 
+    struct QemuThread *thread;
 #ifdef _WIN32
     HANDLE hThread;
 #endif