]> Git Repo - qemu.git/blobdiff - hw/s390x/s390-virtio-ccw.c
s390x: machine reset function with new ipl cpu handling
[qemu.git] / hw / s390x / s390-virtio-ccw.c
index 42f5cec4c17b1f7809354180abb7e9ad63bb62d9..faba7735925485abea8b3368ee60bc5fd94419fc 100644 (file)
 #include "ioinst.h"
 #include "css.h"
 #include "virtio-ccw.h"
+#include "qemu/config-file.h"
+#include "s390-pci-bus.h"
+#include "hw/s390x/storage-keys.h"
 
-void io_subsystem_reset(void)
+#define TYPE_S390_CCW_MACHINE               "s390-ccw-machine"
+
+#define S390_CCW_MACHINE(obj) \
+    OBJECT_CHECK(S390CcwMachineState, (obj), TYPE_S390_CCW_MACHINE)
+
+typedef struct S390CcwMachineState {
+    /*< private >*/
+    MachineState parent_obj;
+
+    /*< public >*/
+    bool aes_key_wrap;
+    bool dea_key_wrap;
+} S390CcwMachineState;
+
+static const char *const reset_dev_types[] = {
+    "virtual-css-bridge",
+    "s390-sclp-event-facility",
+    "s390-flic",
+    "diag288",
+};
+
+void subsystem_reset(void)
 {
-    DeviceState *css, *sclp, *flic;
+    DeviceState *dev;
+    int i;
 
-    css = DEVICE(object_resolve_path_type("", "virtual-css-bridge", NULL));
-    if (css) {
-        qdev_reset_all(css);
-    }
-    sclp = DEVICE(object_resolve_path_type("",
-                  "s390-sclp-event-facility", NULL));
-    if (sclp) {
-        qdev_reset_all(sclp);
-    }
-    flic = DEVICE(object_resolve_path_type("", "s390-flic", NULL));
-    if (flic) {
-        qdev_reset_all(flic);
+    for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) {
+        dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL));
+        if (dev) {
+            qdev_reset_all(dev);
+        }
     }
 }
 
@@ -51,7 +69,7 @@ static int virtio_ccw_hcall_notify(const uint64_t *args)
     if (!sch || !css_subch_visible(sch)) {
         return -EINVAL;
     }
-    if (queue >= VIRTIO_PCI_QUEUE_MAX) {
+    if (queue >= VIRTIO_CCW_QUEUE_MAX) {
         return -EINVAL;
     }
     virtio_queue_notify(virtio_ccw_get_vdev(sch), queue);
@@ -79,46 +97,45 @@ static void virtio_ccw_register_hcalls(void)
                                    virtio_ccw_hcall_early_printk);
 }
 
-static void ccw_init(MachineState *machine)
+void s390_memory_init(ram_addr_t mem_size)
 {
-    ram_addr_t my_ram_size = machine->ram_size;
     MemoryRegion *sysmem = get_system_memory();
     MemoryRegion *ram = g_new(MemoryRegion, 1);
-    int shift = 0;
-    uint8_t *storage_keys;
+
+    /* allocate RAM for core */
+    memory_region_init_ram(ram, NULL, "s390.ram", mem_size, &error_fatal);
+    vmstate_register_ram_global(ram);
+    memory_region_add_subregion(sysmem, 0, ram);
+
+    /* Initialize storage key device */
+    s390_skeys_init();
+}
+
+static void ccw_init(MachineState *machine)
+{
     int ret;
     VirtualCssBus *css_bus;
+    DeviceState *dev;
 
-    /* s390x ram size detection needs a 16bit multiplier + an increment. So
-       guests > 64GB can be specified in 2MB steps etc. */
-    while ((my_ram_size >> (20 + shift)) > 65535) {
-        shift++;
-    }
-    my_ram_size = my_ram_size >> (20 + shift) << (20 + shift);
-
-    /* let's propagate the changed ram size into the global variable. */
-    ram_size = my_ram_size;
+    s390_sclp_init();
+    s390_memory_init(machine->ram_size);
 
     /* get a BUS */
     css_bus = virtual_css_bus_init();
-    s390_sclp_init();
     s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline,
-                      machine->initrd_filename, "s390-ccw.img");
+                      machine->initrd_filename, "s390-ccw.img", true);
     s390_flic_init();
 
+    dev = qdev_create(NULL, TYPE_S390_PCI_HOST_BRIDGE);
+    object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE,
+                              OBJECT(dev), NULL);
+    qdev_init_nofail(dev);
+
     /* register hypercalls */
     virtio_ccw_register_hcalls();
 
-    /* allocate RAM */
-    memory_region_init_ram(ram, NULL, "s390.ram", my_ram_size);
-    vmstate_register_ram_global(ram);
-    memory_region_add_subregion(sysmem, 0, ram);
-
-    /* allocate storage keys */
-    storage_keys = g_malloc0(my_ram_size / TARGET_PAGE_SIZE);
-
     /* init CPUs */
-    s390_init_cpus(machine->cpu_model, storage_keys);
+    s390_init_cpus(machine->cpu_model);
 
     if (kvm_enabled()) {
         kvm_s390_enable_css_support(s390_cpu_addr2state(0));
@@ -132,26 +149,169 @@ static void ccw_init(MachineState *machine)
 
     /* Create VirtIO network adapters */
     s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw");
+
+    /* Register savevm handler for guest TOD clock */
+    register_savevm(NULL, "todclock", 0, 1,
+                    gtod_save, gtod_load, kvm_state);
+}
+
+static void ccw_machine_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    NMIClass *nc = NMI_CLASS(oc);
+
+    mc->init = ccw_init;
+    mc->reset = s390_machine_reset;
+    mc->block_default_type = IF_VIRTIO;
+    mc->no_cdrom = 1;
+    mc->no_floppy = 1;
+    mc->no_serial = 1;
+    mc->no_parallel = 1;
+    mc->no_sdcard = 1;
+    mc->use_sclp = 1;
+    mc->max_cpus = 255;
+    nc->nmi_monitor_handler = s390_nmi;
+}
+
+static inline bool machine_get_aes_key_wrap(Object *obj, Error **errp)
+{
+    S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
+
+    return ms->aes_key_wrap;
+}
+
+static inline void machine_set_aes_key_wrap(Object *obj, bool value,
+                                            Error **errp)
+{
+    S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
+
+    ms->aes_key_wrap = value;
+}
+
+static inline bool machine_get_dea_key_wrap(Object *obj, Error **errp)
+{
+    S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
+
+    return ms->dea_key_wrap;
+}
+
+static inline void machine_set_dea_key_wrap(Object *obj, bool value,
+                                            Error **errp)
+{
+    S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
+
+    ms->dea_key_wrap = value;
+}
+
+static inline void s390_machine_initfn(Object *obj)
+{
+    object_property_add_bool(obj, "aes-key-wrap",
+                             machine_get_aes_key_wrap,
+                             machine_set_aes_key_wrap, NULL);
+    object_property_set_description(obj, "aes-key-wrap",
+            "enable/disable AES key wrapping using the CPACF wrapping key",
+            NULL);
+    object_property_set_bool(obj, true, "aes-key-wrap", NULL);
+
+    object_property_add_bool(obj, "dea-key-wrap",
+                             machine_get_dea_key_wrap,
+                             machine_set_dea_key_wrap, NULL);
+    object_property_set_description(obj, "dea-key-wrap",
+            "enable/disable DEA key wrapping using the CPACF wrapping key",
+            NULL);
+    object_property_set_bool(obj, true, "dea-key-wrap", NULL);
+}
+
+static const TypeInfo ccw_machine_info = {
+    .name          = TYPE_S390_CCW_MACHINE,
+    .parent        = TYPE_MACHINE,
+    .abstract      = true,
+    .instance_size = sizeof(S390CcwMachineState),
+    .instance_init = s390_machine_initfn,
+    .class_init    = ccw_machine_class_init,
+    .interfaces = (InterfaceInfo[]) {
+        { TYPE_NMI },
+        { }
+    },
+};
+
+#define CCW_COMPAT_2_4 \
+        {\
+            .driver   = TYPE_S390_SKEYS,\
+            .property = "migration-enabled",\
+            .value    = "off",\
+        },{\
+            .driver   = "virtio-blk-ccw",\
+            .property = "max_revision",\
+            .value    = "0",\
+        },{\
+            .driver   = "virtio-balloon-ccw",\
+            .property = "max_revision",\
+            .value    = "0",\
+        },{\
+            .driver   = "virtio-serial-ccw",\
+            .property = "max_revision",\
+            .value    = "0",\
+        },{\
+            .driver   = "virtio-9p-ccw",\
+            .property = "max_revision",\
+            .value    = "0",\
+        },{\
+            .driver   = "virtio-rng-ccw",\
+            .property = "max_revision",\
+            .value    = "0",\
+        },{\
+            .driver   = "virtio-net-ccw",\
+            .property = "max_revision",\
+            .value    = "0",\
+        },{\
+            .driver   = "virtio-scsi-ccw",\
+            .property = "max_revision",\
+            .value    = "0",\
+        },{\
+            .driver   = "vhost-scsi-ccw",\
+            .property = "max_revision",\
+            .value    = "0",\
+        },
+
+static void ccw_machine_2_4_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+    static GlobalProperty compat_props[] = {
+        CCW_COMPAT_2_4
+        { /* end of list */ }
+    };
+
+    mc->desc = "VirtIO-ccw based S390 machine v2.4";
+    mc->compat_props = compat_props;
+}
+
+static const TypeInfo ccw_machine_2_4_info = {
+    .name          = MACHINE_TYPE_NAME("s390-ccw-virtio-2.4"),
+    .parent        = TYPE_S390_CCW_MACHINE,
+    .class_init    = ccw_machine_2_4_class_init,
+};
+
+static void ccw_machine_2_5_class_init(ObjectClass *oc, void *data)
+{
+    MachineClass *mc = MACHINE_CLASS(oc);
+
+    mc->alias = "s390-ccw-virtio";
+    mc->desc = "VirtIO-ccw based S390 machine v2.5";
+    mc->is_default = 1;
 }
 
-static QEMUMachine ccw_machine = {
-    .name = "s390-ccw-virtio",
-    .alias = "s390-ccw",
-    .desc = "VirtIO-ccw based S390 machine",
-    .init = ccw_init,
-    .block_default_type = IF_VIRTIO,
-    .no_cdrom = 1,
-    .no_floppy = 1,
-    .no_serial = 1,
-    .no_parallel = 1,
-    .no_sdcard = 1,
-    .use_sclp = 1,
-    .max_cpus = 255,
+static const TypeInfo ccw_machine_2_5_info = {
+    .name          = MACHINE_TYPE_NAME("s390-ccw-virtio-2.5"),
+    .parent        = TYPE_S390_CCW_MACHINE,
+    .class_init    = ccw_machine_2_5_class_init,
 };
 
-static void ccw_machine_init(void)
+static void ccw_machine_register_types(void)
 {
-    qemu_register_machine(&ccw_machine);
+    type_register_static(&ccw_machine_info);
+    type_register_static(&ccw_machine_2_4_info);
+    type_register_static(&ccw_machine_2_5_info);
 }
 
-machine_init(ccw_machine_init)
+type_init(ccw_machine_register_types)
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