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authorDavid Hildenbrand <david@redhat.com>2017-09-28 15:46:06 +0200
committerCornelia Huck <cohuck@redhat.com>2017-10-06 10:53:02 +0200
commitc5b934303cf83fe3dda31e8d3e5778458c8a9eeb (patch)
treea20e88c3098d5a8b4e5217bd95f93da9e43628a8
parent040078e06d5ed5ce73e5aaaeeb877cbb7a44bdf5 (diff)
s390x: raise CPU hotplug irq after really hotplugged
Let's move it into the machine, so we trigger the IRQ after setting ms->possible_cpus (which SCLP uses to construct the list of online CPUs). This also fixes a problem reported by Thomas Huth, whereby qemu can be crashed using the none machine qemu-s390x-softmmu -M none -monitor stdio -> device_add qemu-s390-cpu Reviewed-by: Christian Borntraeger <borntraeger@de.ibm.com> Reviewed-by: Richard Henderson <richard.henderson@linaro.org> Signed-off-by: David Hildenbrand <david@redhat.com> Message-Id: <20170928134609.16985-3-david@redhat.com> Signed-off-by: Cornelia Huck <cohuck@redhat.com>
-rw-r--r--hw/s390x/s390-virtio-ccw.c4
-rw-r--r--target/s390x/cpu.c8
2 files changed, 4 insertions, 8 deletions
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index 2c689d50bc..679a1a858c 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -307,6 +307,10 @@ static void s390_cpu_plug(HotplugHandler *hotplug_dev,
g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu);
ms->possible_cpus->cpus[cpu->env.core_id].cpu = OBJECT(dev);
+
+ if (dev->hotplugged) {
+ raise_irq_cpu_hotplug();
+ }
}
static void s390_machine_reset(void)
diff --git a/target/s390x/cpu.c b/target/s390x/cpu.c
index 34538c3ab9..4920da3625 100644
--- a/target/s390x/cpu.c
+++ b/target/s390x/cpu.c
@@ -41,7 +41,6 @@
#include "hw/hw.h"
#include "sysemu/arch_init.h"
#include "sysemu/sysemu.h"
-#include "hw/s390x/sclp.h"
#endif
#define CR0_RESET 0xE0UL
@@ -227,13 +226,6 @@ static void s390_cpu_realizefn(DeviceState *dev, Error **errp)
#endif
scc->parent_realize(dev, &err);
-
-#if !defined(CONFIG_USER_ONLY)
- if (dev->hotplugged) {
- raise_irq_cpu_hotplug();
- }
-#endif
-
out:
error_propagate(errp, err);
}