[PATCH 16/20] qemu-kvm: Use upstream main loop

[Jan Kiszka <jan.kiszka@xxxxxxxxxxx>]

This also means switching to the CONFIG_IOTHREAD version of
qemu_main_loop_start and clean up some related patches of upstream code.

Signed-off-by: Jan Kiszka <jan.kiszka@xxxxxxxxxxx>
---
 cpus.c     |   50 +++-----------------------------------------------
 qemu-kvm.h |    1 -
 sysemu.h   |    2 --
 vl.c       |   17 ++---------------
 4 files changed, 5 insertions(+), 65 deletions(-)

diff --git a/cpus.c b/cpus.c
index 23c6ccd..a4bac1a 100644
--- a/cpus.c
+++ b/cpus.c
@@ -546,11 +546,13 @@ int qemu_init_main_loop(void)
 
     return qemu_event_init();
 }
+#ifndef CONFIG_IOTHREAD
 
 void qemu_main_loop_start(void)
 {
 }
 
+#endif /* !CONFIG_IOTHREAD */
 void qemu_init_vcpu(void *_env)
 {
     CPUState *env = _env;
@@ -681,13 +683,13 @@ int qemu_init_main_loop(void)
 
     return 0;
 }
+#endif /* UNUSED_IOTHREAD_IMPL */
 
 void qemu_main_loop_start(void)
 {
     qemu_system_ready = 1;
     qemu_cond_broadcast(&qemu_system_cond);
 }
-#endif /* UNUSED_IOTHREAD_IMPL */
 
 void run_on_cpu(CPUState *env, void (*func)(void *data), void *data)
 {
@@ -1273,16 +1275,6 @@ static void setup_kernel_sigmask(CPUState *env)
     kvm_set_signal_mask(env, &set);
 }
 
-static void qemu_kvm_system_reset(void)
-{
-    pause_all_vcpus();
-
-    cpu_synchronize_all_states();
-    qemu_system_reset();
-
-    resume_all_vcpus();
-}
-
 static int kvm_main_loop_cpu(CPUState *env)
 {
     while (1) {
@@ -1367,42 +1359,6 @@ bool qemu_system_is_ready(void)
     return qemu_system_ready;
 }
 
-int kvm_main_loop(void)
-{
-    int r;
-
-    qemu_system_ready = 1;
-    qemu_cond_broadcast(&qemu_system_cond);
-
-    while (1) {
-        main_loop_wait(0);
-        if (qemu_shutdown_requested()) {
-            monitor_protocol_event(QEVENT_SHUTDOWN, NULL);
-            if (qemu_no_shutdown()) {
-                vm_stop(VMSTOP_SHUTDOWN);
-            } else {
-                break;
-            }
-        } else if (qemu_powerdown_requested()) {
-            monitor_protocol_event(QEVENT_POWERDOWN, NULL);
-            qemu_irq_raise(qemu_system_powerdown);
-        } else if (qemu_reset_requested()) {
-            qemu_kvm_system_reset();
-        } else if (qemu_debug_requested()) {
-            vm_stop(VMSTOP_DEBUG);
-        }
-        if ((r = qemu_vmstop_requested())) {
-            vm_stop(r);
-        }
-    }
-
-    bdrv_close_all();
-    pause_all_vcpus();
-    qemu_mutex_unlock(&qemu_global_mutex);
-
-    return 0;
-}
-
 static void qemu_kvm_init_main_loop(void)
 {
     sigset_t mask;
diff --git a/qemu-kvm.h b/qemu-kvm.h
index a577eba..2420f82 100644
--- a/qemu-kvm.h
+++ b/qemu-kvm.h
@@ -266,7 +266,6 @@ struct kvm_pit_state {
 #endif                          /* !CONFIG_KVM */
 
 int kvm_create_vcpu(CPUState *env);
-int kvm_main_loop(void);
 int kvm_init_ap(void);
 void kvm_save_lapic(CPUState *env);
 void kvm_load_lapic(CPUState *env);
diff --git a/sysemu.h b/sysemu.h
index 0d4f923..560210d 100644
--- a/sysemu.h
+++ b/sysemu.h
@@ -48,8 +48,6 @@ int qemu_reset_requested_get(void);
 int qemu_shutdown_requested(void);
 int qemu_reset_requested(void);
 int qemu_powerdown_requested(void);
-int qemu_debug_requested(void);
-int qemu_vmstop_requested(void);
 void qemu_system_killed(int signal, pid_t pid);
 void qemu_kill_report(void);
 extern qemu_irq qemu_system_powerdown;
diff --git a/vl.c b/vl.c
index e17094a..0bbd4e4 100644
--- a/vl.c
+++ b/vl.c
@@ -1164,13 +1164,6 @@ static int powerdown_requested;
 static int debug_requested;
 static int vmstop_requested;
 
-int qemu_no_shutdown(void)
-{
-    int r = no_shutdown;
-    no_shutdown = 0;
-    return r;
-}
-
 int qemu_shutdown_requested_get(void)
 {
     return shutdown_requested;
@@ -1218,14 +1211,14 @@ int qemu_powerdown_requested(void)
     return r;
 }
 
-int qemu_debug_requested(void)
+static int qemu_debug_requested(void)
 {
     int r = debug_requested;
     debug_requested = 0;
     return r;
 }
 
-int qemu_vmstop_requested(void)
+static int qemu_vmstop_requested(void)
 {
     int r = vmstop_requested;
     vmstop_requested = 0;
@@ -1372,12 +1365,6 @@ static void main_loop(void)
 #endif
     int r;
 
-    if (kvm_enabled()) {
-        kvm_main_loop();
-        cpu_disable_ticks();
-        return;
-    }
-
     qemu_main_loop_start();
 
     for (;;) {
-- 
1.7.1

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