memory: add reference counting to FlatView

[qemu.git] / cpus.c

diff --git a/cpus.c b/cpus.c
index 4c7e3299f3939981ff5c8c4979aac3325d6add78..20958e5a5919755e92b9f41201703b1921228104 100644 (file)
--- a/cpus.c
+++ b/cpus.c
@@ -71,7 +71,7 @@ static bool cpu_thread_is_idle(CPUState *cpu)
         return true;
     }
     if (!cpu->halted || qemu_cpu_has_work(cpu) ||
-        kvm_async_interrupts_enabled()) {
+        kvm_halt_in_kernel()) {
         return false;
     }
     return true;
@@ -459,11 +459,9 @@ static bool cpu_can_run(CPUState *cpu)
     return true;
 }
 
-static void cpu_handle_guest_debug(CPUArchState *env)
+static void cpu_handle_guest_debug(CPUState *cpu)
 {
-    CPUState *cpu = ENV_GET_CPU(env);
-
-    gdb_set_stop_cpu(env);
+    gdb_set_stop_cpu(cpu);
     qemu_system_debug_request();
     cpu->stopped = true;
 }
@@ -729,14 +727,13 @@ static void qemu_kvm_wait_io_event(CPUState *cpu)
 
 static void *qemu_kvm_cpu_thread_fn(void *arg)
 {
-    CPUArchState *env = arg;
-    CPUState *cpu = ENV_GET_CPU(env);
+    CPUState *cpu = arg;
     int r;
 
     qemu_mutex_lock(&qemu_global_mutex);
     qemu_thread_get_self(cpu->thread);
     cpu->thread_id = qemu_get_thread_id();
-    cpu_single_env = env;
+    cpu_single_env = cpu->env_ptr;
 
     r = kvm_init_vcpu(cpu);
     if (r < 0) {
@@ -752,9 +749,9 @@ static void *qemu_kvm_cpu_thread_fn(void *arg)
 
     while (1) {
         if (cpu_can_run(cpu)) {
-            r = kvm_cpu_exec(env);
+            r = kvm_cpu_exec(cpu);
             if (r == EXCP_DEBUG) {
-                cpu_handle_guest_debug(env);
+                cpu_handle_guest_debug(cpu);
             }
         }
         qemu_kvm_wait_io_event(cpu);
@@ -769,8 +766,7 @@ static void *qemu_dummy_cpu_thread_fn(void *arg)
     fprintf(stderr, "qtest is not supported under Windows\n");
     exit(1);
 #else
-    CPUArchState *env = arg;
-    CPUState *cpu = ENV_GET_CPU(env);
+    CPUState *cpu = arg;
     sigset_t waitset;
     int r;
 
@@ -785,7 +781,7 @@ static void *qemu_dummy_cpu_thread_fn(void *arg)
     cpu->created = true;
     qemu_cond_signal(&qemu_cpu_cond);
 
-    cpu_single_env = env;
+    cpu_single_env = cpu->env_ptr;
     while (1) {
         cpu_single_env = NULL;
         qemu_mutex_unlock_iothread();
@@ -798,7 +794,7 @@ static void *qemu_dummy_cpu_thread_fn(void *arg)
             exit(1);
         }
         qemu_mutex_lock_iothread();
-        cpu_single_env = env;
+        cpu_single_env = cpu->env_ptr;
         qemu_wait_io_event_common(cpu);
     }
 
@@ -1033,48 +1029,41 @@ static void qemu_tcg_init_vcpu(CPUState *cpu)
     }
 }
 
-static void qemu_kvm_start_vcpu(CPUArchState *env)
+static void qemu_kvm_start_vcpu(CPUState *cpu)
 {
-    CPUState *cpu = ENV_GET_CPU(env);
-
     cpu->thread = g_malloc0(sizeof(QemuThread));
     cpu->halt_cond = g_malloc0(sizeof(QemuCond));
     qemu_cond_init(cpu->halt_cond);
-    qemu_thread_create(cpu->thread, qemu_kvm_cpu_thread_fn, env,
+    qemu_thread_create(cpu->thread, qemu_kvm_cpu_thread_fn, cpu,
                        QEMU_THREAD_JOINABLE);
     while (!cpu->created) {
         qemu_cond_wait(&qemu_cpu_cond, &qemu_global_mutex);
     }
 }
 
-static void qemu_dummy_start_vcpu(CPUArchState *env)
+static void qemu_dummy_start_vcpu(CPUState *cpu)
 {
-    CPUState *cpu = ENV_GET_CPU(env);
-
     cpu->thread = g_malloc0(sizeof(QemuThread));
     cpu->halt_cond = g_malloc0(sizeof(QemuCond));
     qemu_cond_init(cpu->halt_cond);
-    qemu_thread_create(cpu->thread, qemu_dummy_cpu_thread_fn, env,
+    qemu_thread_create(cpu->thread, qemu_dummy_cpu_thread_fn, cpu,
                        QEMU_THREAD_JOINABLE);
     while (!cpu->created) {
         qemu_cond_wait(&qemu_cpu_cond, &qemu_global_mutex);
     }
 }
 
-void qemu_init_vcpu(void *_env)
+void qemu_init_vcpu(CPUState *cpu)
 {
-    CPUArchState *env = _env;
-    CPUState *cpu = ENV_GET_CPU(env);
-
     cpu->nr_cores = smp_cores;
     cpu->nr_threads = smp_threads;
     cpu->stopped = true;
     if (kvm_enabled()) {
-        qemu_kvm_start_vcpu(env);
+        qemu_kvm_start_vcpu(cpu);
     } else if (tcg_enabled()) {
         qemu_tcg_init_vcpu(cpu);
     } else {
-        qemu_dummy_start_vcpu(env);
+        qemu_dummy_start_vcpu(cpu);
     }
 }
 
@@ -1172,7 +1161,7 @@ static void tcg_exec_all(void)
         if (cpu_can_run(cpu)) {
             r = tcg_cpu_exec(env);
             if (r == EXCP_DEBUG) {
-                cpu_handle_guest_debug(env);
+                cpu_handle_guest_debug(cpu);
                 break;
             }
         } else if (cpu->stop || cpu->stopped) {