cpus: Move CPU code from exec.c to cpus-common.c

This code was introduced with SMP support in commit 6a00d60127,
later commit 267f685b8b moved CPU list management to common code
but forgot this code. Move now and simplify ifdef'ry.

Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20200702104017.14057-1-philmd@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

1 files changed, 18 insertions, 0 deletions

diff --git a/cpus-common.c b/cpus-common.c
index 8f5512b3d7..34044f4e4c 100644
--- a/cpus-common.c
+++ b/cpus-common.c
@@ -72,6 +72,8 @@ static int cpu_get_free_index(void)
     return max_cpu_index;
 }
 
+CPUTailQ cpus = QTAILQ_HEAD_INITIALIZER(cpus);
+
 void cpu_list_add(CPUState *cpu)
 {
     QEMU_LOCK_GUARD(&qemu_cpu_list_lock);
@@ -96,6 +98,22 @@ void cpu_list_remove(CPUState *cpu)
     cpu->cpu_index = UNASSIGNED_CPU_INDEX;
 }
 
+CPUState *qemu_get_cpu(int index)
+{
+    CPUState *cpu;
+
+    CPU_FOREACH(cpu) {
+        if (cpu->cpu_index == index) {
+            return cpu;
+        }
+    }
+
+    return NULL;
+}
+
+/* current CPU in the current thread. It is only valid inside cpu_exec() */
+__thread CPUState *current_cpu;
+
 struct qemu_work_item {
     QSIMPLEQ_ENTRY(qemu_work_item) node;
     run_on_cpu_func func;