pc: port 92 reset requires a low->high transition

[mirror_qemu.git] / cpus.c

diff --git a/cpus.c b/cpus.c
index 945d85b3266cacae6548891ca3d9419208eb9197..7bbe15348c611feb7698691fe4819ded56889f7f 100644 (file)
--- a/cpus.c
+++ b/cpus.c
@@ -76,7 +76,7 @@ static bool cpu_thread_is_idle(CPUState *cpu)
     if (cpu_is_stopped(cpu)) {
         return true;
     }
-    if (!cpu->halted || qemu_cpu_has_work(cpu) ||
+    if (!cpu->halted || cpu_has_work(cpu) ||
         kvm_halt_in_kernel()) {
         return false;
     }
@@ -139,11 +139,10 @@ static int64_t cpu_get_icount_locked(void)
 
     icount = qemu_icount;
     if (cpu) {
-        CPUArchState *env = cpu->env_ptr;
-        if (!can_do_io(env)) {
+        if (!cpu_can_do_io(cpu)) {
             fprintf(stderr, "Bad clock read\n");
         }
-        icount -= (env->icount_decr.u16.low + env->icount_extra);
+        icount -= (cpu->icount_decr.u16.low + cpu->icount_extra);
     }
     return qemu_icount_bias + (icount << icount_time_shift);
 }
@@ -1117,8 +1116,13 @@ void resume_all_vcpus(void)
     }
 }
 
+/* For temporary buffers for forming a name */
+#define VCPU_THREAD_NAME_SIZE 16
+
 static void qemu_tcg_init_vcpu(CPUState *cpu)
 {
+    char thread_name[VCPU_THREAD_NAME_SIZE];
+
     tcg_cpu_address_space_init(cpu, cpu->as);
 
     /* share a single thread for all cpus with TCG */
@@ -1127,8 +1131,10 @@ static void qemu_tcg_init_vcpu(CPUState *cpu)
         cpu->halt_cond = g_malloc0(sizeof(QemuCond));
         qemu_cond_init(cpu->halt_cond);
         tcg_halt_cond = cpu->halt_cond;
-        qemu_thread_create(cpu->thread, qemu_tcg_cpu_thread_fn, cpu,
-                           QEMU_THREAD_JOINABLE);
+        snprintf(thread_name, VCPU_THREAD_NAME_SIZE, "CPU %d/TCG",
+                 cpu->cpu_index);
+        qemu_thread_create(cpu->thread, thread_name, qemu_tcg_cpu_thread_fn,
+                           cpu, QEMU_THREAD_JOINABLE);
 #ifdef _WIN32
         cpu->hThread = qemu_thread_get_handle(cpu->thread);
 #endif
@@ -1144,11 +1150,15 @@ static void qemu_tcg_init_vcpu(CPUState *cpu)
 
 static void qemu_kvm_start_vcpu(CPUState *cpu)
 {
+    char thread_name[VCPU_THREAD_NAME_SIZE];
+
     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, cpu,
-                       QEMU_THREAD_JOINABLE);
+    snprintf(thread_name, VCPU_THREAD_NAME_SIZE, "CPU %d/KVM",
+             cpu->cpu_index);
+    qemu_thread_create(cpu->thread, thread_name, qemu_kvm_cpu_thread_fn,
+                       cpu, QEMU_THREAD_JOINABLE);
     while (!cpu->created) {
         qemu_cond_wait(&qemu_cpu_cond, &qemu_global_mutex);
     }
@@ -1156,10 +1166,14 @@ static void qemu_kvm_start_vcpu(CPUState *cpu)
 
 static void qemu_dummy_start_vcpu(CPUState *cpu)
 {
+    char thread_name[VCPU_THREAD_NAME_SIZE];
+
     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, cpu,
+    snprintf(thread_name, VCPU_THREAD_NAME_SIZE, "CPU %d/DUMMY",
+             cpu->cpu_index);
+    qemu_thread_create(cpu->thread, thread_name, qemu_dummy_cpu_thread_fn, cpu,
                        QEMU_THREAD_JOINABLE);
     while (!cpu->created) {
         qemu_cond_wait(&qemu_cpu_cond, &qemu_global_mutex);
@@ -1221,6 +1235,7 @@ int vm_stop_force_state(RunState state)
 
 static int tcg_cpu_exec(CPUArchState *env)
 {
+    CPUState *cpu = ENV_GET_CPU(env);
     int ret;
 #ifdef CONFIG_PROFILER
     int64_t ti;
@@ -1233,9 +1248,9 @@ static int tcg_cpu_exec(CPUArchState *env)
         int64_t count;
         int64_t deadline;
         int decr;
-        qemu_icount -= (env->icount_decr.u16.low + env->icount_extra);
-        env->icount_decr.u16.low = 0;
-        env->icount_extra = 0;
+        qemu_icount -= (cpu->icount_decr.u16.low + cpu->icount_extra);
+        cpu->icount_decr.u16.low = 0;
+        cpu->icount_extra = 0;
         deadline = qemu_clock_deadline_ns_all(QEMU_CLOCK_VIRTUAL);
 
         /* Maintain prior (possibly buggy) behaviour where if no deadline
@@ -1251,8 +1266,8 @@ static int tcg_cpu_exec(CPUArchState *env)
         qemu_icount += count;
         decr = (count > 0xffff) ? 0xffff : count;
         count -= decr;
-        env->icount_decr.u16.low = decr;
-        env->icount_extra = count;
+        cpu->icount_decr.u16.low = decr;
+        cpu->icount_extra = count;
     }
     ret = cpu_exec(env);
 #ifdef CONFIG_PROFILER
@@ -1261,10 +1276,9 @@ static int tcg_cpu_exec(CPUArchState *env)
     if (use_icount) {
         /* Fold pending instructions back into the
            instruction counter, and clear the interrupt flag.  */
-        qemu_icount -= (env->icount_decr.u16.low
-                        + env->icount_extra);
-        env->icount_decr.u32 = 0;
-        env->icount_extra = 0;
+        qemu_icount -= (cpu->icount_decr.u16.low + cpu->icount_extra);
+        cpu->icount_decr.u32 = 0;
+        cpu->icount_extra = 0;
     }
     return ret;
 }
@@ -1440,7 +1454,7 @@ void qmp_pmemsave(int64_t addr, int64_t size, const char *filename,
         l = sizeof(buf);
         if (l > size)
             l = size;
-        cpu_physical_memory_rw(addr, buf, l, 0);
+        cpu_physical_memory_read(addr, buf, l);
         if (fwrite(buf, 1, l, f) != l) {
             error_set(errp, QERR_IO_ERROR);
             goto exit;