From c5b934303cf83fe3dda31e8d3e5778458c8a9eeb Mon Sep 17 00:00:00 2001 From: David Hildenbrand Date: Thu, 28 Sep 2017 15:46:06 +0200 Subject: [PATCH] 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 Reviewed-by: Richard Henderson Signed-off-by: David Hildenbrand Message-Id: <20170928134609.16985-3-david@redhat.com> Signed-off-by: Cornelia Huck --- hw/s390x/s390-virtio-ccw.c | 4 ++++ target/s390x/cpu.c | 8 -------- 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); } -- GitLab