cpu: add APIs to allocate/free CPU environment

These will be implemented and then used by follow-up patches.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

1 files changed, 34 insertions, 0 deletions

diff --git a/qom/cpu.c b/qom/cpu.c
index 4f38db0dac..9201fd9807 100644
--- a/qom/cpu.c
+++ b/qom/cpu.c
@@ -89,6 +89,40 @@ out:
     return cpu;
 }
 
+void *cpu_alloc_env(CPUState *cpu)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    return cc->alloc_env ? cc->alloc_env(cpu) : NULL;
+}
+
+void cpu_get_env(CPUState *cpu, void *env)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    if (cc->get_env) {
+        cc->get_env(cpu, env);
+    }
+}
+
+void cpu_set_env(CPUState *cpu, void *env)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    if (cc->set_env) {
+        cc->set_env(cpu, env);
+    }
+}
+
+void cpu_free_env(CPUState *cpu, void *env)
+{
+    CPUClass *cc = CPU_GET_CLASS(cpu);
+
+    if (cc->free_env) {
+        cc->free_env(cpu, env);
+    }
+}
+
 bool cpu_paging_enabled(const CPUState *cpu)
 {
     CPUClass *cc = CPU_GET_CLASS(cpu);