[PULL,for-2.6,01/11] s390x/cpu: Cleanup init in preparation for hotplug

Commit Message

Cornelia Huck March 11, 2016, 9:56 a.m. UTC

From: Matthew Rosato <[e-mail]>

Ensure a valid cpu_model is set upfront by setting the
default value directly into the MachineState when none is
specified.  This is needed to ensure hotplugged CPUs share
the same cpu_model.

Signed-off-by: Matthew Rosato <[e-mail]>
Reviewed-by: David Hildenbrand <[e-mail]>
Message-Id: <[e-mail]>
Signed-off-by: Cornelia Huck <[e-mail]>
---
 hw/s390x/s390-virtio-ccw.c | 2 +-
 hw/s390x/s390-virtio.c     | 8 ++++----
 hw/s390x/s390-virtio.h     | 2 +-
 3 files changed, 6 insertions(+), 6 deletions(-)

Patch

diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 89f5d0d..b05ed8b 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -136,7 +136,7 @@  static void ccw_init(MachineState *machine)
     virtio_ccw_register_hcalls();
 
     /* init CPUs */
-    s390_init_cpus(machine->cpu_model);
+    s390_init_cpus(machine);
 
     if (kvm_enabled()) {
         kvm_s390_enable_css_support(s390_cpu_addr2state(0));
diff --git a/hw/s390x/s390-virtio.c b/hw/s390x/s390-virtio.c
index 8e533ae..d40d0dc 100644
--- a/hw/s390x/s390-virtio.c
+++ b/hw/s390x/s390-virtio.c
@@ -93,12 +93,12 @@  void s390_init_ipl_dev(const char *kernel_filename,
     qdev_init_nofail(dev);
 }
 
-void s390_init_cpus(const char *cpu_model)
+void s390_init_cpus(MachineState *machine)
 {
     int i;
 
-    if (cpu_model == NULL) {
-        cpu_model = "host";
+    if (machine->cpu_model == NULL) {
+        machine->cpu_model = "host";
     }
 
     ipi_states = g_malloc(sizeof(S390CPU *) * smp_cpus);
@@ -107,7 +107,7 @@  void s390_init_cpus(const char *cpu_model)
         S390CPU *cpu;
         CPUState *cs;
 
-        cpu = cpu_s390x_init(cpu_model);
+        cpu = cpu_s390x_init(machine->cpu_model);
         cs = CPU(cpu);
 
         ipi_states[i] = cpu;
diff --git a/hw/s390x/s390-virtio.h b/hw/s390x/s390-virtio.h
index eebce8e..ffd014c 100644
--- a/hw/s390x/s390-virtio.h
+++ b/hw/s390x/s390-virtio.h
@@ -19,7 +19,7 @@ 
 typedef int (*s390_virtio_fn)(const uint64_t *args);
 void s390_register_virtio_hypercall(uint64_t code, s390_virtio_fn fn);
 
-void s390_init_cpus(const char *cpu_model);
+void s390_init_cpus(MachineState *machine);
 void s390_init_ipl_dev(const char *kernel_filename,
                        const char *kernel_cmdline,
                        const char *initrd_filename,