provide cpu_index to env mapping
There are some people interested in, given a cpu number,
pick its CPUState. KVM is an example, although not yet in tree.
This patch provides a way of doing that.
Signed-off-by: Glauber Costa <glommer@redhat.com>
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
diff --git a/cpu-all.h b/cpu-all.h
index 8f078c4..48a9a2c 100644
--- a/cpu-all.h
+++ b/cpu-all.h
@@ -743,6 +743,7 @@
void cpu_exec_init_all(unsigned long tb_size);
CPUState *cpu_copy(CPUState *env);
+CPUState *qemu_get_cpu(int cpu);
void cpu_dump_state(CPUState *env, FILE *f,
int (*cpu_fprintf)(FILE *f, const char *fmt, ...),
diff --git a/exec.c b/exec.c
index 3023f44..bbaf0b6 100644
--- a/exec.c
+++ b/exec.c
@@ -541,6 +541,19 @@
}
#endif
+CPUState *qemu_get_cpu(int cpu)
+{
+ CPUState *env = first_cpu;
+
+ while (env) {
+ if (env->cpu_index == cpu)
+ break;
+ env = env->next_cpu;
+ }
+
+ return env;
+}
+
void cpu_exec_init(CPUState *env)
{
CPUState **penv;
