From: Alexander Graf <agraf@csgraf.de>

We will need to install a migration helper for the ARM hvf backend.
Let's introduce an arch callback for the overall hvf init chain to
do so.

Signed-off-by: Alexander Graf <agraf@csgraf.de>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Message-id: 20210916155404.86958-4-agraf@csgraf.de
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
---
 include/sysemu/hvf_int.h  | 1 +
 accel/hvf/hvf-accel-ops.c | 3 ++-
 target/i386/hvf/hvf.c     | 5 +++++
 3 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/include/sysemu/hvf_int.h b/include/sysemu/hvf_int.h
index 8b66a4e7d0d..0466106d160 100644
--- a/include/sysemu/hvf_int.h
+++ b/include/sysemu/hvf_int.h
@@ -48,6 +48,7 @@ struct hvf_vcpu_state {
 };
 
 void assert_hvf_ok(hv_return_t ret);
+int hvf_arch_init(void);
 int hvf_arch_init_vcpu(CPUState *cpu);
 void hvf_arch_vcpu_destroy(CPUState *cpu);
 int hvf_vcpu_exec(CPUState *);
diff --git a/accel/hvf/hvf-accel-ops.c b/accel/hvf/hvf-accel-ops.c
index 71cc2fa70fa..65d431868fb 100644
--- a/accel/hvf/hvf-accel-ops.c
+++ b/accel/hvf/hvf-accel-ops.c
@@ -324,7 +324,8 @@ static int hvf_accel_init(MachineState *ms)
 
     hvf_state = s;
     memory_listener_register(&hvf_memory_listener, &address_space_memory);
-    return 0;
+
+    return hvf_arch_init();
 }
 
 static void hvf_accel_class_init(ObjectClass *oc, void *data)
diff --git a/target/i386/hvf/hvf.c b/target/i386/hvf/hvf.c
index 79ba4ed93ab..abef24a9c84 100644
--- a/target/i386/hvf/hvf.c
+++ b/target/i386/hvf/hvf.c
@@ -206,6 +206,11 @@ static inline bool apic_bus_freq_is_known(CPUX86State *env)
     return env->apic_bus_freq != 0;
 }
 
+int hvf_arch_init(void)
+{
+    return 0;
+}
+
 int hvf_arch_init_vcpu(CPUState *cpu)
 {
     X86CPU *x86cpu = X86_CPU(cpu);
-- 
2.20.1