From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:36268) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fH7zV-0002Sh-2x for qemu-devel@nongnu.org; Fri, 11 May 2018 09:21:46 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fH7zT-0005Rt-PY for qemu-devel@nongnu.org; Fri, 11 May 2018 09:21:45 -0400 From: David Hildenbrand Date: Fri, 11 May 2018 15:19:53 +0200 Message-Id: <20180511131953.12905-18-david@redhat.com> In-Reply-To: <20180511131953.12905-1-david@redhat.com> References: <20180511131953.12905-1-david@redhat.com> Subject: [Qemu-devel] [PATCH v2 17/17] s390x: support memory devices List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: qemu-s390x@nongnu.org, "Michael S . Tsirkin" , Igor Mammedov , Marcel Apfelbaum , Paolo Bonzini , Richard Henderson , Eduardo Habkost , David Gibson , Markus Armbruster , qemu-ppc@nongnu.org, Pankaj Gupta , Alexander Graf , Cornelia Huck , Christian Borntraeger , Luiz Capitulino , David Hildenbrand Let's route all memory devices we can hotplug through the machine hotplug handler, just like on pc and spapr. Signed-off-by: David Hildenbrand --- default-configs/s390x-softmmu.mak | 1 + hw/s390x/s390-virtio-ccw.c | 35 +++++++++++++++++++++++++++++++++++ 2 files changed, 36 insertions(+) diff --git a/default-configs/s390x-softmmu.mak b/default-configs/s390x-softmmu.mak index 2f4bfe73b4..6b017b65fc 100644 --- a/default-configs/s390x-softmmu.mak +++ b/default-configs/s390x-softmmu.mak @@ -9,3 +9,4 @@ CONFIG_S390_FLIC=y CONFIG_S390_FLIC_KVM=$(CONFIG_KVM) CONFIG_VFIO_CCW=$(CONFIG_LINUX) CONFIG_WDT_DIAG288=y +CONFIG_MEM_HOTPLUG=y diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c index 09b755282b..91687ca327 100644 --- a/hw/s390x/s390-virtio-ccw.c +++ b/hw/s390x/s390-virtio-ccw.c @@ -35,6 +35,7 @@ #include "migration/register.h" #include "cpu_models.h" #include "hw/nmi.h" +#include "hw/mem/memory-device.h" S390CPU *s390_cpu_addr2state(uint16_t cpu_addr) { @@ -436,12 +437,29 @@ static void s390_machine_device_plug(HotplugHandler *hotplug_dev, { Error *local_err = NULL; + /* first stage hotplug handler */ + if (object_dynamic_cast(OBJECT(dev), TYPE_MEMORY_DEVICE)) { + memory_device_plug(MACHINE(hotplug_dev), MEMORY_DEVICE(dev), NULL, + &local_err); + } + + if (local_err) { + error_propagate(errp, local_err); + return; + } + /* final stage hotplug handler */ if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { s390_cpu_plug(hotplug_dev, dev, &local_err); } else if (dev->parent_bus && dev->parent_bus->hotplug_handler) { hotplug_handler_plug(dev->parent_bus->hotplug_handler, dev, &local_err); } + + if (local_err) { + if (object_dynamic_cast(OBJECT(dev), TYPE_MEMORY_DEVICE)) { + memory_device_unplug(MACHINE(hotplug_dev), MEMORY_DEVICE(dev)); + } + } error_propagate(errp, local_err); } @@ -468,6 +486,16 @@ static void s390_machine_device_unplug(HotplugHandler *hotplug_dev, &local_err); } error_propagate(errp, local_err); + + if (local_err) { + error_propagate(errp, local_err); + return; + } + + /* first stage hotplug handler */ + if (object_dynamic_cast(OBJECT(dev), TYPE_MEMORY_DEVICE)) { + memory_device_unplug(MACHINE(hotplug_dev), MEMORY_DEVICE(dev)); + } } static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms, @@ -509,6 +537,13 @@ static HotplugHandler *s390_get_hotplug_handler(MachineState *machine, if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) { return HOTPLUG_HANDLER(machine); } + + if (dev->parent_bus) { + if (object_dynamic_cast(OBJECT(dev), TYPE_MEMORY_DEVICE)) { + return HOTPLUG_HANDLER(machine); + } + } + return NULL; } -- 2.14.3