[Qemu-devel] [PATCH 03/16] introduce resume_vcpu(), for single CPU

[Igor Mammedov <imammedo@redhat.com>]

... also add stub for it, to make possible to use it in qom/cpu.c,
which is shared with user emulators.

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
---
Note:
  it will be re-used from qom/cpu.c by hotpluged CPU
---
 cpus.c              | 11 ++++++++---
 include/qom/cpu.h   |  9 +++++++++
 stubs/Makefile.objs |  1 +
 stubs/cpus.c        |  5 +++++
 4 files changed, 23 insertions(+), 3 deletions(-)
 create mode 100644 stubs/cpus.c

diff --git a/cpus.c b/cpus.c
index c15ff6c..c347db5 100644
--- a/cpus.c
+++ b/cpus.c
@@ -993,6 +993,13 @@ void pause_all_vcpus(void)
     }
 }
 
+void resume_vcpu(CPUState *cpu)
+{
+    cpu->stop = false;
+    cpu->stopped = false;
+    qemu_cpu_kick(cpu);
+}
+
 void resume_all_vcpus(void)
 {
     CPUArchState *penv = first_cpu;
@@ -1000,9 +1007,7 @@ void resume_all_vcpus(void)
     qemu_clock_enable(vm_clock, true);
     while (penv) {
         CPUState *pcpu = ENV_GET_CPU(penv);
-        pcpu->stop = false;
-        pcpu->stopped = false;
-        qemu_cpu_kick(pcpu);
+        resume_vcpu(pcpu);
         penv = penv->next_cpu;
     }
 }
diff --git a/include/qom/cpu.h b/include/qom/cpu.h
index 3664a1b..6ce6f10 100644
--- a/include/qom/cpu.h
+++ b/include/qom/cpu.h
@@ -256,5 +256,14 @@ void cpu_interrupt(CPUState *cpu, int mask);
  */
 void cpu_reset_interrupt(CPUState *cpu, int mask);
 
+/**
+ * resume_vcpu:
+ * @cpu: The CPU to resume.
+ *
+ * Resumes CPU, i.e. puts CPU into runable state.
+ * KVM requires extra call cpu_synchronize_post_init() to make
+ * KVM's CPU instance runable.
+ */
+void resume_vcpu(CPUState *cpu);
 
 #endif
diff --git a/stubs/Makefile.objs b/stubs/Makefile.objs
index 9c55b34..03dff20 100644
--- a/stubs/Makefile.objs
+++ b/stubs/Makefile.objs
@@ -23,3 +23,4 @@ stub-obj-y += sysbus.o
 stub-obj-y += vm-stop.o
 stub-obj-y += vmstate.o
 stub-obj-$(CONFIG_WIN32) += fd-register.o
+stub-obj-y += cpus.o
diff --git a/stubs/cpus.c b/stubs/cpus.c
new file mode 100644
index 0000000..3d17451
--- /dev/null
+++ b/stubs/cpus.c
@@ -0,0 +1,5 @@
+#include "qom/cpu.h"
+
+void resume_vcpu(CPUState *cpu)
+{
+}
-- 
1.8.2