This moves all files only used by s390 system emulation to hw/s390x.
Signed-off-by: Alexander Graf <agraf@suse.de>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
+++ /dev/null
-/*
- * QEMU S390 virtio target
- *
- * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "hw.h"
-#include "block/block.h"
-#include "sysemu/sysemu.h"
-#include "boards.h"
-#include "monitor/monitor.h"
-#include "loader.h"
-#include "elf.h"
-#include "hw/virtio.h"
-#include "hw/virtio-rng.h"
-#include "hw/virtio-serial.h"
-#include "hw/virtio-net.h"
-#include "hw/sysbus.h"
-#include "sysemu/kvm.h"
-
-#include "hw/s390-virtio-bus.h"
-#include "hw/virtio-bus.h"
-
-/* #define DEBUG_S390 */
-
-#ifdef DEBUG_S390
-#define dprintf(fmt, ...) \
- do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
-#else
-#define dprintf(fmt, ...) \
- do { } while (0)
-#endif
-
-#define VIRTIO_EXT_CODE 0x2603
-
-static const TypeInfo s390_virtio_bus_info = {
- .name = TYPE_S390_VIRTIO_BUS,
- .parent = TYPE_BUS,
- .instance_size = sizeof(VirtIOS390Bus),
-};
-
-static const VirtIOBindings virtio_s390_bindings;
-
-static ram_addr_t s390_virtio_device_num_vq(VirtIOS390Device *dev);
-
-/* length of VirtIO device pages */
-const hwaddr virtio_size = S390_DEVICE_PAGES * TARGET_PAGE_SIZE;
-
-static void s390_virtio_bus_reset(void *opaque)
-{
- VirtIOS390Bus *bus = opaque;
- bus->next_ring = bus->dev_page + TARGET_PAGE_SIZE;
-}
-
-void s390_virtio_reset_idx(VirtIOS390Device *dev)
-{
- int i;
- hwaddr idx_addr;
- uint8_t num_vq;
-
- num_vq = s390_virtio_device_num_vq(dev);
- for (i = 0; i < num_vq; i++) {
- idx_addr = virtio_queue_get_avail_addr(dev->vdev, i) +
- VIRTIO_VRING_AVAIL_IDX_OFFS;
- stw_phys(idx_addr, 0);
- idx_addr = virtio_queue_get_used_addr(dev->vdev, i) +
- VIRTIO_VRING_USED_IDX_OFFS;
- stw_phys(idx_addr, 0);
- }
-}
-
-VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size)
-{
- VirtIOS390Bus *bus;
- BusState *_bus;
- DeviceState *dev;
-
- /* Create bridge device */
- dev = qdev_create(NULL, "s390-virtio-bridge");
- qdev_init_nofail(dev);
-
- /* Create bus on bridge device */
-
- _bus = qbus_create(TYPE_S390_VIRTIO_BUS, dev, "s390-virtio");
- bus = DO_UPCAST(VirtIOS390Bus, bus, _bus);
-
- bus->dev_page = *ram_size;
- bus->dev_offs = bus->dev_page;
- bus->next_ring = bus->dev_page + TARGET_PAGE_SIZE;
-
- /* Enable hotplugging */
- _bus->allow_hotplug = 1;
-
- /* Allocate RAM for VirtIO device pages (descriptors, queues, rings) */
- *ram_size += S390_DEVICE_PAGES * TARGET_PAGE_SIZE;
-
- qemu_register_reset(s390_virtio_bus_reset, bus);
- return bus;
-}
-
-static void s390_virtio_irq(S390CPU *cpu, int config_change, uint64_t token)
-{
- CPUS390XState *env = &cpu->env;
-
- if (kvm_enabled()) {
- kvm_s390_virtio_irq(cpu, config_change, token);
- } else {
- cpu_inject_ext(env, VIRTIO_EXT_CODE, config_change, token);
- }
-}
-
-static int s390_virtio_device_init(VirtIOS390Device *dev, VirtIODevice *vdev)
-{
- VirtIOS390Bus *bus;
- int dev_len;
-
- bus = DO_UPCAST(VirtIOS390Bus, bus, dev->qdev.parent_bus);
- dev->vdev = vdev;
- dev->dev_offs = bus->dev_offs;
- dev->feat_len = sizeof(uint32_t); /* always keep 32 bits features */
-
- dev_len = VIRTIO_DEV_OFFS_CONFIG;
- dev_len += s390_virtio_device_num_vq(dev) * VIRTIO_VQCONFIG_LEN;
- dev_len += dev->feat_len * 2;
- dev_len += vdev->config_len;
-
- bus->dev_offs += dev_len;
-
- virtio_bind_device(vdev, &virtio_s390_bindings, DEVICE(dev));
- dev->host_features = vdev->get_features(vdev, dev->host_features);
- s390_virtio_device_sync(dev);
- s390_virtio_reset_idx(dev);
- if (dev->qdev.hotplugged) {
- S390CPU *cpu = s390_cpu_addr2state(0);
- s390_virtio_irq(cpu, VIRTIO_PARAM_DEV_ADD, dev->dev_offs);
- }
-
- return 0;
-}
-
-static int s390_virtio_net_init(VirtIOS390Device *dev)
-{
- VirtIODevice *vdev;
-
- vdev = virtio_net_init((DeviceState *)dev, &dev->nic, &dev->net);
- if (!vdev) {
- return -1;
- }
-
- return s390_virtio_device_init(dev, vdev);
-}
-
-static int s390_virtio_blk_init(VirtIOS390Device *dev)
-{
- VirtIODevice *vdev;
-
- vdev = virtio_blk_init((DeviceState *)dev, &dev->blk);
- if (!vdev) {
- return -1;
- }
-
- return s390_virtio_device_init(dev, vdev);
-}
-
-static int s390_virtio_serial_init(VirtIOS390Device *dev)
-{
- VirtIOS390Bus *bus;
- VirtIODevice *vdev;
- int r;
-
- bus = DO_UPCAST(VirtIOS390Bus, bus, dev->qdev.parent_bus);
-
- vdev = virtio_serial_init((DeviceState *)dev, &dev->serial);
- if (!vdev) {
- return -1;
- }
-
- r = s390_virtio_device_init(dev, vdev);
- if (!r) {
- bus->console = dev;
- }
-
- return r;
-}
-
-static int s390_virtio_scsi_init(VirtIOS390Device *dev)
-{
- VirtIODevice *vdev;
-
- vdev = virtio_scsi_init((DeviceState *)dev, &dev->scsi);
- if (!vdev) {
- return -1;
- }
-
- return s390_virtio_device_init(dev, vdev);
-}
-
-static int s390_virtio_rng_init(VirtIOS390Device *dev)
-{
- VirtIODevice *vdev;
-
- vdev = virtio_rng_init((DeviceState *)dev, &dev->rng);
- if (!vdev) {
- return -1;
- }
-
- return s390_virtio_device_init(dev, vdev);
-}
-
-static uint64_t s390_virtio_device_vq_token(VirtIOS390Device *dev, int vq)
-{
- ram_addr_t token_off;
-
- token_off = (dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG) +
- (vq * VIRTIO_VQCONFIG_LEN) +
- VIRTIO_VQCONFIG_OFFS_TOKEN;
-
- return ldq_be_phys(token_off);
-}
-
-static ram_addr_t s390_virtio_device_num_vq(VirtIOS390Device *dev)
-{
- VirtIODevice *vdev = dev->vdev;
- int num_vq;
-
- for (num_vq = 0; num_vq < VIRTIO_PCI_QUEUE_MAX; num_vq++) {
- if (!virtio_queue_get_num(vdev, num_vq)) {
- break;
- }
- }
-
- return num_vq;
-}
-
-static ram_addr_t s390_virtio_next_ring(VirtIOS390Bus *bus)
-{
- ram_addr_t r = bus->next_ring;
-
- bus->next_ring += VIRTIO_RING_LEN;
- return r;
-}
-
-void s390_virtio_device_sync(VirtIOS390Device *dev)
-{
- VirtIOS390Bus *bus = DO_UPCAST(VirtIOS390Bus, bus, dev->qdev.parent_bus);
- ram_addr_t cur_offs;
- uint8_t num_vq;
- int i;
-
- virtio_reset(dev->vdev);
-
- /* Sync dev space */
- stb_phys(dev->dev_offs + VIRTIO_DEV_OFFS_TYPE, dev->vdev->device_id);
-
- stb_phys(dev->dev_offs + VIRTIO_DEV_OFFS_NUM_VQ, s390_virtio_device_num_vq(dev));
- stb_phys(dev->dev_offs + VIRTIO_DEV_OFFS_FEATURE_LEN, dev->feat_len);
-
- stb_phys(dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG_LEN, dev->vdev->config_len);
-
- num_vq = s390_virtio_device_num_vq(dev);
- stb_phys(dev->dev_offs + VIRTIO_DEV_OFFS_NUM_VQ, num_vq);
-
- /* Sync virtqueues */
- for (i = 0; i < num_vq; i++) {
- ram_addr_t vq = (dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG) +
- (i * VIRTIO_VQCONFIG_LEN);
- ram_addr_t vring;
-
- vring = s390_virtio_next_ring(bus);
- virtio_queue_set_addr(dev->vdev, i, vring);
- virtio_queue_set_vector(dev->vdev, i, i);
- stq_be_phys(vq + VIRTIO_VQCONFIG_OFFS_ADDRESS, vring);
- stw_be_phys(vq + VIRTIO_VQCONFIG_OFFS_NUM, virtio_queue_get_num(dev->vdev, i));
- }
-
- cur_offs = dev->dev_offs;
- cur_offs += VIRTIO_DEV_OFFS_CONFIG;
- cur_offs += num_vq * VIRTIO_VQCONFIG_LEN;
-
- /* Sync feature bitmap */
- stl_le_phys(cur_offs, dev->host_features);
-
- dev->feat_offs = cur_offs + dev->feat_len;
- cur_offs += dev->feat_len * 2;
-
- /* Sync config space */
- if (dev->vdev->get_config) {
- dev->vdev->get_config(dev->vdev, dev->vdev->config);
- }
-
- cpu_physical_memory_write(cur_offs,
- dev->vdev->config, dev->vdev->config_len);
- cur_offs += dev->vdev->config_len;
-}
-
-void s390_virtio_device_update_status(VirtIOS390Device *dev)
-{
- VirtIODevice *vdev = dev->vdev;
- uint32_t features;
-
- virtio_set_status(vdev, ldub_phys(dev->dev_offs + VIRTIO_DEV_OFFS_STATUS));
-
- /* Update guest supported feature bitmap */
-
- features = bswap32(ldl_be_phys(dev->feat_offs));
- virtio_set_features(vdev, features);
-}
-
-VirtIOS390Device *s390_virtio_bus_console(VirtIOS390Bus *bus)
-{
- return bus->console;
-}
-
-/* Find a device by vring address */
-VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus,
- ram_addr_t mem,
- int *vq_num)
-{
- BusChild *kid;
- int i;
-
- QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
- VirtIOS390Device *dev = (VirtIOS390Device *)kid->child;
-
- for(i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) {
- if (!virtio_queue_get_addr(dev->vdev, i))
- break;
- if (virtio_queue_get_addr(dev->vdev, i) == mem) {
- if (vq_num) {
- *vq_num = i;
- }
- return dev;
- }
- }
- }
-
- return NULL;
-}
-
-/* Find a device by device descriptor location */
-VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem)
-{
- BusChild *kid;
-
- QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
- VirtIOS390Device *dev = (VirtIOS390Device *)kid->child;
- if (dev->dev_offs == mem) {
- return dev;
- }
- }
-
- return NULL;
-}
-
-/* DeviceState to VirtIOS390Device. Note: used on datapath,
- * be careful and test performance if you change this.
- */
-static inline VirtIOS390Device *to_virtio_s390_device_fast(DeviceState *d)
-{
- return container_of(d, VirtIOS390Device, qdev);
-}
-
-/* DeviceState to VirtIOS390Device. TODO: use QOM. */
-static inline VirtIOS390Device *to_virtio_s390_device(DeviceState *d)
-{
- return container_of(d, VirtIOS390Device, qdev);
-}
-
-static void virtio_s390_notify(DeviceState *d, uint16_t vector)
-{
- VirtIOS390Device *dev = to_virtio_s390_device_fast(d);
- uint64_t token = s390_virtio_device_vq_token(dev, vector);
- S390CPU *cpu = s390_cpu_addr2state(0);
-
- s390_virtio_irq(cpu, 0, token);
-}
-
-static unsigned virtio_s390_get_features(DeviceState *d)
-{
- VirtIOS390Device *dev = to_virtio_s390_device(d);
- return dev->host_features;
-}
-
-/**************** S390 Virtio Bus Device Descriptions *******************/
-
-static const VirtIOBindings virtio_s390_bindings = {
- .notify = virtio_s390_notify,
- .get_features = virtio_s390_get_features,
-};
-
-static Property s390_virtio_net_properties[] = {
- DEFINE_NIC_PROPERTIES(VirtIOS390Device, nic),
- DEFINE_PROP_UINT32("x-txtimer", VirtIOS390Device,
- net.txtimer, TX_TIMER_INTERVAL),
- DEFINE_PROP_INT32("x-txburst", VirtIOS390Device,
- net.txburst, TX_BURST),
- DEFINE_PROP_STRING("tx", VirtIOS390Device, net.tx),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void s390_virtio_net_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
-
- k->init = s390_virtio_net_init;
- dc->props = s390_virtio_net_properties;
-}
-
-static const TypeInfo s390_virtio_net = {
- .name = "virtio-net-s390",
- .parent = TYPE_VIRTIO_S390_DEVICE,
- .instance_size = sizeof(VirtIOS390Device),
- .class_init = s390_virtio_net_class_init,
-};
-
-static Property s390_virtio_blk_properties[] = {
- DEFINE_BLOCK_PROPERTIES(VirtIOS390Device, blk.conf),
- DEFINE_BLOCK_CHS_PROPERTIES(VirtIOS390Device, blk.conf),
- DEFINE_PROP_STRING("serial", VirtIOS390Device, blk.serial),
-#ifdef __linux__
- DEFINE_PROP_BIT("scsi", VirtIOS390Device, blk.scsi, 0, true),
-#endif
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void s390_virtio_blk_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
-
- k->init = s390_virtio_blk_init;
- dc->props = s390_virtio_blk_properties;
-}
-
-static const TypeInfo s390_virtio_blk = {
- .name = "virtio-blk-s390",
- .parent = TYPE_VIRTIO_S390_DEVICE,
- .instance_size = sizeof(VirtIOS390Device),
- .class_init = s390_virtio_blk_class_init,
-};
-
-static Property s390_virtio_serial_properties[] = {
- DEFINE_PROP_UINT32("max_ports", VirtIOS390Device,
- serial.max_virtserial_ports, 31),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void s390_virtio_serial_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
-
- k->init = s390_virtio_serial_init;
- dc->props = s390_virtio_serial_properties;
-}
-
-static const TypeInfo s390_virtio_serial = {
- .name = "virtio-serial-s390",
- .parent = TYPE_VIRTIO_S390_DEVICE,
- .instance_size = sizeof(VirtIOS390Device),
- .class_init = s390_virtio_serial_class_init,
-};
-
-static void s390_virtio_rng_initfn(Object *obj)
-{
- VirtIOS390Device *dev = VIRTIO_S390_DEVICE(obj);
-
- object_property_add_link(obj, "rng", TYPE_RNG_BACKEND,
- (Object **)&dev->rng.rng, NULL);
-}
-
-static void s390_virtio_rng_class_init(ObjectClass *klass, void *data)
-{
- VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
-
- k->init = s390_virtio_rng_init;
-}
-
-static const TypeInfo s390_virtio_rng = {
- .name = "virtio-rng-s390",
- .parent = TYPE_VIRTIO_S390_DEVICE,
- .instance_size = sizeof(VirtIOS390Device),
- .instance_init = s390_virtio_rng_initfn,
- .class_init = s390_virtio_rng_class_init,
-};
-
-static int s390_virtio_busdev_init(DeviceState *dev)
-{
- VirtIOS390Device *_dev = (VirtIOS390Device *)dev;
- VirtIOS390DeviceClass *_info = VIRTIO_S390_DEVICE_GET_CLASS(dev);
-
- virtio_s390_bus_new(&_dev->bus, _dev);
-
- return _info->init(_dev);
-}
-
-static void s390_virtio_busdev_reset(DeviceState *dev)
-{
- VirtIOS390Device *_dev = (VirtIOS390Device *)dev;
-
- virtio_reset(_dev->vdev);
-}
-
-static void virtio_s390_device_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
-
- dc->init = s390_virtio_busdev_init;
- dc->bus_type = TYPE_S390_VIRTIO_BUS;
- dc->unplug = qdev_simple_unplug_cb;
- dc->reset = s390_virtio_busdev_reset;
-}
-
-static const TypeInfo virtio_s390_device_info = {
- .name = TYPE_VIRTIO_S390_DEVICE,
- .parent = TYPE_DEVICE,
- .instance_size = sizeof(VirtIOS390Device),
- .class_init = virtio_s390_device_class_init,
- .class_size = sizeof(VirtIOS390DeviceClass),
- .abstract = true,
-};
-
-static Property s390_virtio_scsi_properties[] = {
- DEFINE_VIRTIO_SCSI_PROPERTIES(VirtIOS390Device, host_features, scsi),
- DEFINE_PROP_END_OF_LIST(),
-};
-
-static void s390_virtio_scsi_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
-
- k->init = s390_virtio_scsi_init;
- dc->props = s390_virtio_scsi_properties;
-}
-
-static const TypeInfo s390_virtio_scsi = {
- .name = "virtio-scsi-s390",
- .parent = TYPE_VIRTIO_S390_DEVICE,
- .instance_size = sizeof(VirtIOS390Device),
- .class_init = s390_virtio_scsi_class_init,
-};
-
-/***************** S390 Virtio Bus Bridge Device *******************/
-/* Only required to have the virtio bus as child in the system bus */
-
-static int s390_virtio_bridge_init(SysBusDevice *dev)
-{
- /* nothing */
- return 0;
-}
-
-static void s390_virtio_bridge_class_init(ObjectClass *klass, void *data)
-{
- DeviceClass *dc = DEVICE_CLASS(klass);
- SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
-
- k->init = s390_virtio_bridge_init;
- dc->no_user = 1;
-}
-
-static const TypeInfo s390_virtio_bridge_info = {
- .name = "s390-virtio-bridge",
- .parent = TYPE_SYS_BUS_DEVICE,
- .instance_size = sizeof(SysBusDevice),
- .class_init = s390_virtio_bridge_class_init,
-};
-
-/* virtio-s390-bus */
-
-void virtio_s390_bus_new(VirtioBusState *bus, VirtIOS390Device *dev)
-{
- DeviceState *qdev = DEVICE(dev);
- BusState *qbus;
- qbus_create_inplace((BusState *)bus, TYPE_VIRTIO_S390_BUS, qdev, NULL);
- qbus = BUS(bus);
- qbus->allow_hotplug = 0;
-}
-
-static void virtio_s390_bus_class_init(ObjectClass *klass, void *data)
-{
- VirtioBusClass *k = VIRTIO_BUS_CLASS(klass);
- BusClass *bus_class = BUS_CLASS(klass);
- bus_class->max_dev = 1;
- k->notify = virtio_s390_notify;
- k->get_features = virtio_s390_get_features;
-}
-
-static const TypeInfo virtio_s390_bus_info = {
- .name = TYPE_VIRTIO_S390_BUS,
- .parent = TYPE_VIRTIO_BUS,
- .instance_size = sizeof(VirtioS390BusState),
- .class_init = virtio_s390_bus_class_init,
-};
-
-static void s390_virtio_register_types(void)
-{
- type_register_static(&virtio_s390_bus_info);
- type_register_static(&s390_virtio_bus_info);
- type_register_static(&virtio_s390_device_info);
- type_register_static(&s390_virtio_serial);
- type_register_static(&s390_virtio_blk);
- type_register_static(&s390_virtio_net);
- type_register_static(&s390_virtio_scsi);
- type_register_static(&s390_virtio_rng);
- type_register_static(&s390_virtio_bridge_info);
-}
-
-type_init(s390_virtio_register_types)
+++ /dev/null
-/*
- * QEMU S390x VirtIO BUS definitions
- *
- * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-#ifndef HW_S390_VIRTIO_BUS_H
-#define HW_S390_VIRTIO_BUS_H 1
-
-#include "virtio-blk.h"
-#include "virtio-net.h"
-#include "virtio-rng.h"
-#include "virtio-serial.h"
-#include "virtio-scsi.h"
-#include "virtio-bus.h"
-
-#define VIRTIO_DEV_OFFS_TYPE 0 /* 8 bits */
-#define VIRTIO_DEV_OFFS_NUM_VQ 1 /* 8 bits */
-#define VIRTIO_DEV_OFFS_FEATURE_LEN 2 /* 8 bits */
-#define VIRTIO_DEV_OFFS_CONFIG_LEN 3 /* 8 bits */
-#define VIRTIO_DEV_OFFS_STATUS 4 /* 8 bits */
-#define VIRTIO_DEV_OFFS_CONFIG 5 /* dynamic */
-
-#define VIRTIO_VQCONFIG_OFFS_TOKEN 0 /* 64 bits */
-#define VIRTIO_VQCONFIG_OFFS_ADDRESS 8 /* 64 bits */
-#define VIRTIO_VQCONFIG_OFFS_NUM 16 /* 16 bits */
-#define VIRTIO_VQCONFIG_LEN 24
-
-#define VIRTIO_RING_LEN (TARGET_PAGE_SIZE * 3)
-#define VIRTIO_VRING_AVAIL_IDX_OFFS 2
-#define VIRTIO_VRING_USED_IDX_OFFS 2
-#define S390_DEVICE_PAGES 512
-
-#define VIRTIO_PARAM_MASK 0xff
-#define VIRTIO_PARAM_VRING_INTERRUPT 0x0
-#define VIRTIO_PARAM_CONFIG_CHANGED 0x1
-#define VIRTIO_PARAM_DEV_ADD 0x2
-
-#define TYPE_VIRTIO_S390_DEVICE "virtio-s390-device"
-#define VIRTIO_S390_DEVICE(obj) \
- OBJECT_CHECK(VirtIOS390Device, (obj), TYPE_VIRTIO_S390_DEVICE)
-#define VIRTIO_S390_DEVICE_CLASS(klass) \
- OBJECT_CLASS_CHECK(VirtIOS390DeviceClass, (klass), TYPE_VIRTIO_S390_DEVICE)
-#define VIRTIO_S390_DEVICE_GET_CLASS(obj) \
- OBJECT_GET_CLASS(VirtIOS390DeviceClass, (obj), TYPE_VIRTIO_S390_DEVICE)
-
-#define TYPE_S390_VIRTIO_BUS "s390-virtio-bus"
-#define S390_VIRTIO_BUS(obj) \
- OBJECT_CHECK(VirtIOS390Bus, (obj), TYPE_S390_VIRTIO_BUS)
-
-/* virtio-s390-bus */
-
-typedef struct VirtioBusState VirtioS390BusState;
-typedef struct VirtioBusClass VirtioS390BusClass;
-
-#define TYPE_VIRTIO_S390_BUS "virtio-s390-bus"
-#define VIRTIO_S390_BUS(obj) \
- OBJECT_CHECK(VirtioS390BusState, (obj), TYPE_VIRTIO_S390_BUS)
-#define VIRTIO_S390_BUS_GET_CLASS(obj) \
- OBJECT_GET_CLASS(VirtioS390BusClass, obj, TYPE_VIRTIO_S390_BUS)
-#define VIRTIO_S390_BUS_CLASS(klass) \
- OBJECT_CLASS_CHECK(VirtioS390BusClass, klass, TYPE_VIRTIO_S390_BUS)
-
-
-typedef struct VirtIOS390Device VirtIOS390Device;
-
-void virtio_s390_bus_new(VirtioBusState *bus, VirtIOS390Device *dev);
-
-typedef struct VirtIOS390DeviceClass {
- DeviceClass qdev;
- int (*init)(VirtIOS390Device *dev);
-} VirtIOS390DeviceClass;
-
-struct VirtIOS390Device {
- DeviceState qdev;
- ram_addr_t dev_offs;
- ram_addr_t feat_offs;
- uint8_t feat_len;
- VirtIODevice *vdev;
- VirtIOBlkConf blk;
- NICConf nic;
- uint32_t host_features;
- virtio_serial_conf serial;
- virtio_net_conf net;
- VirtIOSCSIConf scsi;
- VirtIORNGConf rng;
- VirtioBusState bus;
-};
-
-typedef struct VirtIOS390Bus {
- BusState bus;
-
- VirtIOS390Device *console;
- ram_addr_t dev_page;
- ram_addr_t dev_offs;
- ram_addr_t next_ring;
-} VirtIOS390Bus;
-
-
-void s390_virtio_device_update_status(VirtIOS390Device *dev);
-
-VirtIOS390Device *s390_virtio_bus_console(VirtIOS390Bus *bus);
-VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size);
-
-VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus,
- ram_addr_t mem, int *vq_num);
-VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem);
-void s390_virtio_device_sync(VirtIOS390Device *dev);
-void s390_virtio_reset_idx(VirtIOS390Device *dev);
-
-
-#endif
+++ /dev/null
-/*
- * QEMU S390 virtio target
- *
- * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
- * Copyright IBM Corp 2012
- *
- * This library is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) any later version.
- *
- * This library is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
- * Lesser General Public License for more details.
- *
- * Contributions after 2012-10-29 are licensed under the terms of the
- * GNU GPL, version 2 or (at your option) any later version.
- *
- * You should have received a copy of the GNU (Lesser) General Public
- * License along with this library; if not, see <http://www.gnu.org/licenses/>.
- */
-
-#include "hw.h"
-#include "block/block.h"
-#include "sysemu/blockdev.h"
-#include "sysemu/sysemu.h"
-#include "net/net.h"
-#include "boards.h"
-#include "monitor/monitor.h"
-#include "loader.h"
-#include "hw/virtio.h"
-#include "hw/sysbus.h"
-#include "sysemu/kvm.h"
-#include "exec/address-spaces.h"
-
-#include "hw/s390-virtio-bus.h"
-#include "hw/s390x/sclp.h"
-#include "hw/s390-virtio.h"
-
-//#define DEBUG_S390
-
-#ifdef DEBUG_S390
-#define dprintf(fmt, ...) \
- do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
-#else
-#define dprintf(fmt, ...) \
- do { } while (0)
-#endif
-
-#define MAX_BLK_DEVS 10
-
-static VirtIOS390Bus *s390_bus;
-static S390CPU **ipi_states;
-
-S390CPU *s390_cpu_addr2state(uint16_t cpu_addr)
-{
- if (cpu_addr >= smp_cpus) {
- return NULL;
- }
-
- return ipi_states[cpu_addr];
-}
-
-static int s390_virtio_hcall_notify(const uint64_t *args)
-{
- uint64_t mem = args[0];
- int r = 0, i;
-
- if (mem > ram_size) {
- VirtIOS390Device *dev = s390_virtio_bus_find_vring(s390_bus, mem, &i);
- if (dev) {
- virtio_queue_notify(dev->vdev, i);
- } else {
- r = -EINVAL;
- }
- } else {
- /* Early printk */
- }
- return r;
-}
-
-static int s390_virtio_hcall_reset(const uint64_t *args)
-{
- uint64_t mem = args[0];
- VirtIOS390Device *dev;
-
- dev = s390_virtio_bus_find_mem(s390_bus, mem);
- virtio_reset(dev->vdev);
- stb_phys(dev->dev_offs + VIRTIO_DEV_OFFS_STATUS, 0);
- s390_virtio_device_sync(dev);
- s390_virtio_reset_idx(dev);
-
- return 0;
-}
-
-static int s390_virtio_hcall_set_status(const uint64_t *args)
-{
- uint64_t mem = args[0];
- int r = 0;
- VirtIOS390Device *dev;
-
- dev = s390_virtio_bus_find_mem(s390_bus, mem);
- if (dev) {
- s390_virtio_device_update_status(dev);
- } else {
- r = -EINVAL;
- }
- return r;
-}
-
-static void s390_virtio_register_hcalls(void)
-{
- s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY,
- s390_virtio_hcall_notify);
- s390_register_virtio_hypercall(KVM_S390_VIRTIO_RESET,
- s390_virtio_hcall_reset);
- s390_register_virtio_hypercall(KVM_S390_VIRTIO_SET_STATUS,
- s390_virtio_hcall_set_status);
-}
-
-/*
- * The number of running CPUs. On s390 a shutdown is the state of all CPUs
- * being either stopped or disabled (for interrupts) waiting. We have to
- * track this number to call the shutdown sequence accordingly. This
- * number is modified either on startup or while holding the big qemu lock.
- */
-static unsigned s390_running_cpus;
-
-void s390_add_running_cpu(CPUS390XState *env)
-{
- if (env->halted) {
- s390_running_cpus++;
- env->halted = 0;
- env->exception_index = -1;
- }
-}
-
-unsigned s390_del_running_cpu(CPUS390XState *env)
-{
- if (env->halted == 0) {
- assert(s390_running_cpus >= 1);
- s390_running_cpus--;
- env->halted = 1;
- env->exception_index = EXCP_HLT;
- }
- return s390_running_cpus;
-}
-
-void s390_init_ipl_dev(const char *kernel_filename,
- const char *kernel_cmdline,
- const char *initrd_filename)
-{
- DeviceState *dev;
-
- dev = qdev_create(NULL, "s390-ipl");
- if (kernel_filename) {
- qdev_prop_set_string(dev, "kernel", kernel_filename);
- }
- if (initrd_filename) {
- qdev_prop_set_string(dev, "initrd", initrd_filename);
- }
- qdev_prop_set_string(dev, "cmdline", kernel_cmdline);
- qdev_init_nofail(dev);
-}
-
-void s390_init_cpus(const char *cpu_model, uint8_t *storage_keys)
-{
- int i;
-
- if (cpu_model == NULL) {
- cpu_model = "host";
- }
-
- ipi_states = g_malloc(sizeof(S390CPU *) * smp_cpus);
-
- for (i = 0; i < smp_cpus; i++) {
- S390CPU *cpu;
-
- cpu = cpu_s390x_init(cpu_model);
-
- ipi_states[i] = cpu;
- cpu->env.halted = 1;
- cpu->env.exception_index = EXCP_HLT;
- cpu->env.storage_keys = storage_keys;
- }
-}
-
-
-void s390_create_virtio_net(BusState *bus, const char *name)
-{
- int i;
-
- for (i = 0; i < nb_nics; i++) {
- NICInfo *nd = &nd_table[i];
- DeviceState *dev;
-
- if (!nd->model) {
- nd->model = g_strdup("virtio");
- }
-
- if (strcmp(nd->model, "virtio")) {
- fprintf(stderr, "S390 only supports VirtIO nics\n");
- exit(1);
- }
-
- dev = qdev_create(bus, name);
- qdev_set_nic_properties(dev, nd);
- qdev_init_nofail(dev);
- }
-}
-
-/* PC hardware initialisation */
-static void s390_init(QEMUMachineInitArgs *args)
-{
- ram_addr_t my_ram_size = args->ram_size;
- MemoryRegion *sysmem = get_system_memory();
- MemoryRegion *ram = g_new(MemoryRegion, 1);
- int shift = 0;
- uint8_t *storage_keys;
- void *virtio_region;
- hwaddr virtio_region_len;
- hwaddr virtio_region_start;
-
- /* 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);
-
- /* lets propagate the changed ram size into the global variable. */
- ram_size = my_ram_size;
-
- /* get a BUS */
- s390_bus = s390_virtio_bus_init(&my_ram_size);
- s390_sclp_init();
- s390_init_ipl_dev(args->kernel_filename, args->kernel_cmdline,
- args->initrd_filename);
-
- /* register hypercalls */
- s390_virtio_register_hcalls();
-
- /* allocate RAM */
- memory_region_init_ram(ram, "s390.ram", my_ram_size);
- vmstate_register_ram_global(ram);
- memory_region_add_subregion(sysmem, 0, ram);
-
- /* clear virtio region */
- virtio_region_len = my_ram_size - ram_size;
- virtio_region_start = ram_size;
- virtio_region = cpu_physical_memory_map(virtio_region_start,
- &virtio_region_len, true);
- memset(virtio_region, 0, virtio_region_len);
- cpu_physical_memory_unmap(virtio_region, virtio_region_len, 1,
- virtio_region_len);
-
- /* allocate storage keys */
- storage_keys = g_malloc0(my_ram_size / TARGET_PAGE_SIZE);
-
- /* init CPUs */
- s390_init_cpus(args->cpu_model, storage_keys);
-
- /* Create VirtIO network adapters */
- s390_create_virtio_net((BusState *)s390_bus, "virtio-net-s390");
-}
-
-static QEMUMachine s390_machine = {
- .name = "s390-virtio",
- .alias = "s390",
- .desc = "VirtIO based S390 machine",
- .init = s390_init,
- .block_default_type = IF_VIRTIO,
- .no_cdrom = 1,
- .no_floppy = 1,
- .no_serial = 1,
- .no_parallel = 1,
- .no_sdcard = 1,
- .use_virtcon = 1,
- .max_cpus = 255,
- .is_default = 1,
- DEFAULT_MACHINE_OPTIONS,
-};
-
-static void s390_machine_init(void)
-{
- qemu_register_machine(&s390_machine);
-}
-
-machine_init(s390_machine_init);
+++ /dev/null
-/*
- * Virtio interfaces for s390
- *
- * Copyright 2012 IBM Corp.
- * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2 or (at
- * your option) any later version. See the COPYING file in the top-level
- * directory.
- */
-
-#ifndef HW_S390_VIRTIO_H
-#define HW_S390_VIRTIO_H 1
-
-#define KVM_S390_VIRTIO_NOTIFY 0
-#define KVM_S390_VIRTIO_RESET 1
-#define KVM_S390_VIRTIO_SET_STATUS 2
-
-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, uint8_t *storage_keys);
-void s390_init_ipl_dev(const char *kernel_filename,
- const char *kernel_cmdline,
- const char *initrd_filename);
-void s390_create_virtio_net(BusState *bus, const char *name);
-#endif
obj-y = s390-virtio-bus.o s390-virtio.o
-
-obj-y := $(addprefix ../,$(obj-y))
obj-y += s390-virtio-hcall.o
obj-y += sclp.o
obj-y += event-facility.o
--- /dev/null
+/*
+ * QEMU S390 virtio target
+ *
+ * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "hw/hw.h"
+#include "block/block.h"
+#include "sysemu/sysemu.h"
+#include "hw/boards.h"
+#include "monitor/monitor.h"
+#include "hw/loader.h"
+#include "elf.h"
+#include "hw/virtio.h"
+#include "hw/virtio-rng.h"
+#include "hw/virtio-serial.h"
+#include "hw/virtio-net.h"
+#include "hw/sysbus.h"
+#include "sysemu/kvm.h"
+
+#include "hw/s390x/s390-virtio-bus.h"
+#include "hw/virtio-bus.h"
+
+/* #define DEBUG_S390 */
+
+#ifdef DEBUG_S390
+#define dprintf(fmt, ...) \
+ do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
+#else
+#define dprintf(fmt, ...) \
+ do { } while (0)
+#endif
+
+#define VIRTIO_EXT_CODE 0x2603
+
+static const TypeInfo s390_virtio_bus_info = {
+ .name = TYPE_S390_VIRTIO_BUS,
+ .parent = TYPE_BUS,
+ .instance_size = sizeof(VirtIOS390Bus),
+};
+
+static const VirtIOBindings virtio_s390_bindings;
+
+static ram_addr_t s390_virtio_device_num_vq(VirtIOS390Device *dev);
+
+/* length of VirtIO device pages */
+const hwaddr virtio_size = S390_DEVICE_PAGES * TARGET_PAGE_SIZE;
+
+static void s390_virtio_bus_reset(void *opaque)
+{
+ VirtIOS390Bus *bus = opaque;
+ bus->next_ring = bus->dev_page + TARGET_PAGE_SIZE;
+}
+
+void s390_virtio_reset_idx(VirtIOS390Device *dev)
+{
+ int i;
+ hwaddr idx_addr;
+ uint8_t num_vq;
+
+ num_vq = s390_virtio_device_num_vq(dev);
+ for (i = 0; i < num_vq; i++) {
+ idx_addr = virtio_queue_get_avail_addr(dev->vdev, i) +
+ VIRTIO_VRING_AVAIL_IDX_OFFS;
+ stw_phys(idx_addr, 0);
+ idx_addr = virtio_queue_get_used_addr(dev->vdev, i) +
+ VIRTIO_VRING_USED_IDX_OFFS;
+ stw_phys(idx_addr, 0);
+ }
+}
+
+VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size)
+{
+ VirtIOS390Bus *bus;
+ BusState *_bus;
+ DeviceState *dev;
+
+ /* Create bridge device */
+ dev = qdev_create(NULL, "s390-virtio-bridge");
+ qdev_init_nofail(dev);
+
+ /* Create bus on bridge device */
+
+ _bus = qbus_create(TYPE_S390_VIRTIO_BUS, dev, "s390-virtio");
+ bus = DO_UPCAST(VirtIOS390Bus, bus, _bus);
+
+ bus->dev_page = *ram_size;
+ bus->dev_offs = bus->dev_page;
+ bus->next_ring = bus->dev_page + TARGET_PAGE_SIZE;
+
+ /* Enable hotplugging */
+ _bus->allow_hotplug = 1;
+
+ /* Allocate RAM for VirtIO device pages (descriptors, queues, rings) */
+ *ram_size += S390_DEVICE_PAGES * TARGET_PAGE_SIZE;
+
+ qemu_register_reset(s390_virtio_bus_reset, bus);
+ return bus;
+}
+
+static void s390_virtio_irq(S390CPU *cpu, int config_change, uint64_t token)
+{
+ CPUS390XState *env = &cpu->env;
+
+ if (kvm_enabled()) {
+ kvm_s390_virtio_irq(cpu, config_change, token);
+ } else {
+ cpu_inject_ext(env, VIRTIO_EXT_CODE, config_change, token);
+ }
+}
+
+static int s390_virtio_device_init(VirtIOS390Device *dev, VirtIODevice *vdev)
+{
+ VirtIOS390Bus *bus;
+ int dev_len;
+
+ bus = DO_UPCAST(VirtIOS390Bus, bus, dev->qdev.parent_bus);
+ dev->vdev = vdev;
+ dev->dev_offs = bus->dev_offs;
+ dev->feat_len = sizeof(uint32_t); /* always keep 32 bits features */
+
+ dev_len = VIRTIO_DEV_OFFS_CONFIG;
+ dev_len += s390_virtio_device_num_vq(dev) * VIRTIO_VQCONFIG_LEN;
+ dev_len += dev->feat_len * 2;
+ dev_len += vdev->config_len;
+
+ bus->dev_offs += dev_len;
+
+ virtio_bind_device(vdev, &virtio_s390_bindings, DEVICE(dev));
+ dev->host_features = vdev->get_features(vdev, dev->host_features);
+ s390_virtio_device_sync(dev);
+ s390_virtio_reset_idx(dev);
+ if (dev->qdev.hotplugged) {
+ S390CPU *cpu = s390_cpu_addr2state(0);
+ s390_virtio_irq(cpu, VIRTIO_PARAM_DEV_ADD, dev->dev_offs);
+ }
+
+ return 0;
+}
+
+static int s390_virtio_net_init(VirtIOS390Device *dev)
+{
+ VirtIODevice *vdev;
+
+ vdev = virtio_net_init((DeviceState *)dev, &dev->nic, &dev->net);
+ if (!vdev) {
+ return -1;
+ }
+
+ return s390_virtio_device_init(dev, vdev);
+}
+
+static int s390_virtio_blk_init(VirtIOS390Device *dev)
+{
+ VirtIODevice *vdev;
+
+ vdev = virtio_blk_init((DeviceState *)dev, &dev->blk);
+ if (!vdev) {
+ return -1;
+ }
+
+ return s390_virtio_device_init(dev, vdev);
+}
+
+static int s390_virtio_serial_init(VirtIOS390Device *dev)
+{
+ VirtIOS390Bus *bus;
+ VirtIODevice *vdev;
+ int r;
+
+ bus = DO_UPCAST(VirtIOS390Bus, bus, dev->qdev.parent_bus);
+
+ vdev = virtio_serial_init((DeviceState *)dev, &dev->serial);
+ if (!vdev) {
+ return -1;
+ }
+
+ r = s390_virtio_device_init(dev, vdev);
+ if (!r) {
+ bus->console = dev;
+ }
+
+ return r;
+}
+
+static int s390_virtio_scsi_init(VirtIOS390Device *dev)
+{
+ VirtIODevice *vdev;
+
+ vdev = virtio_scsi_init((DeviceState *)dev, &dev->scsi);
+ if (!vdev) {
+ return -1;
+ }
+
+ return s390_virtio_device_init(dev, vdev);
+}
+
+static int s390_virtio_rng_init(VirtIOS390Device *dev)
+{
+ VirtIODevice *vdev;
+
+ vdev = virtio_rng_init((DeviceState *)dev, &dev->rng);
+ if (!vdev) {
+ return -1;
+ }
+
+ return s390_virtio_device_init(dev, vdev);
+}
+
+static uint64_t s390_virtio_device_vq_token(VirtIOS390Device *dev, int vq)
+{
+ ram_addr_t token_off;
+
+ token_off = (dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG) +
+ (vq * VIRTIO_VQCONFIG_LEN) +
+ VIRTIO_VQCONFIG_OFFS_TOKEN;
+
+ return ldq_be_phys(token_off);
+}
+
+static ram_addr_t s390_virtio_device_num_vq(VirtIOS390Device *dev)
+{
+ VirtIODevice *vdev = dev->vdev;
+ int num_vq;
+
+ for (num_vq = 0; num_vq < VIRTIO_PCI_QUEUE_MAX; num_vq++) {
+ if (!virtio_queue_get_num(vdev, num_vq)) {
+ break;
+ }
+ }
+
+ return num_vq;
+}
+
+static ram_addr_t s390_virtio_next_ring(VirtIOS390Bus *bus)
+{
+ ram_addr_t r = bus->next_ring;
+
+ bus->next_ring += VIRTIO_RING_LEN;
+ return r;
+}
+
+void s390_virtio_device_sync(VirtIOS390Device *dev)
+{
+ VirtIOS390Bus *bus = DO_UPCAST(VirtIOS390Bus, bus, dev->qdev.parent_bus);
+ ram_addr_t cur_offs;
+ uint8_t num_vq;
+ int i;
+
+ virtio_reset(dev->vdev);
+
+ /* Sync dev space */
+ stb_phys(dev->dev_offs + VIRTIO_DEV_OFFS_TYPE, dev->vdev->device_id);
+
+ stb_phys(dev->dev_offs + VIRTIO_DEV_OFFS_NUM_VQ, s390_virtio_device_num_vq(dev));
+ stb_phys(dev->dev_offs + VIRTIO_DEV_OFFS_FEATURE_LEN, dev->feat_len);
+
+ stb_phys(dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG_LEN, dev->vdev->config_len);
+
+ num_vq = s390_virtio_device_num_vq(dev);
+ stb_phys(dev->dev_offs + VIRTIO_DEV_OFFS_NUM_VQ, num_vq);
+
+ /* Sync virtqueues */
+ for (i = 0; i < num_vq; i++) {
+ ram_addr_t vq = (dev->dev_offs + VIRTIO_DEV_OFFS_CONFIG) +
+ (i * VIRTIO_VQCONFIG_LEN);
+ ram_addr_t vring;
+
+ vring = s390_virtio_next_ring(bus);
+ virtio_queue_set_addr(dev->vdev, i, vring);
+ virtio_queue_set_vector(dev->vdev, i, i);
+ stq_be_phys(vq + VIRTIO_VQCONFIG_OFFS_ADDRESS, vring);
+ stw_be_phys(vq + VIRTIO_VQCONFIG_OFFS_NUM, virtio_queue_get_num(dev->vdev, i));
+ }
+
+ cur_offs = dev->dev_offs;
+ cur_offs += VIRTIO_DEV_OFFS_CONFIG;
+ cur_offs += num_vq * VIRTIO_VQCONFIG_LEN;
+
+ /* Sync feature bitmap */
+ stl_le_phys(cur_offs, dev->host_features);
+
+ dev->feat_offs = cur_offs + dev->feat_len;
+ cur_offs += dev->feat_len * 2;
+
+ /* Sync config space */
+ if (dev->vdev->get_config) {
+ dev->vdev->get_config(dev->vdev, dev->vdev->config);
+ }
+
+ cpu_physical_memory_write(cur_offs,
+ dev->vdev->config, dev->vdev->config_len);
+ cur_offs += dev->vdev->config_len;
+}
+
+void s390_virtio_device_update_status(VirtIOS390Device *dev)
+{
+ VirtIODevice *vdev = dev->vdev;
+ uint32_t features;
+
+ virtio_set_status(vdev, ldub_phys(dev->dev_offs + VIRTIO_DEV_OFFS_STATUS));
+
+ /* Update guest supported feature bitmap */
+
+ features = bswap32(ldl_be_phys(dev->feat_offs));
+ virtio_set_features(vdev, features);
+}
+
+VirtIOS390Device *s390_virtio_bus_console(VirtIOS390Bus *bus)
+{
+ return bus->console;
+}
+
+/* Find a device by vring address */
+VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus,
+ ram_addr_t mem,
+ int *vq_num)
+{
+ BusChild *kid;
+ int i;
+
+ QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
+ VirtIOS390Device *dev = (VirtIOS390Device *)kid->child;
+
+ for(i = 0; i < VIRTIO_PCI_QUEUE_MAX; i++) {
+ if (!virtio_queue_get_addr(dev->vdev, i))
+ break;
+ if (virtio_queue_get_addr(dev->vdev, i) == mem) {
+ if (vq_num) {
+ *vq_num = i;
+ }
+ return dev;
+ }
+ }
+ }
+
+ return NULL;
+}
+
+/* Find a device by device descriptor location */
+VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem)
+{
+ BusChild *kid;
+
+ QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
+ VirtIOS390Device *dev = (VirtIOS390Device *)kid->child;
+ if (dev->dev_offs == mem) {
+ return dev;
+ }
+ }
+
+ return NULL;
+}
+
+/* DeviceState to VirtIOS390Device. Note: used on datapath,
+ * be careful and test performance if you change this.
+ */
+static inline VirtIOS390Device *to_virtio_s390_device_fast(DeviceState *d)
+{
+ return container_of(d, VirtIOS390Device, qdev);
+}
+
+/* DeviceState to VirtIOS390Device. TODO: use QOM. */
+static inline VirtIOS390Device *to_virtio_s390_device(DeviceState *d)
+{
+ return container_of(d, VirtIOS390Device, qdev);
+}
+
+static void virtio_s390_notify(DeviceState *d, uint16_t vector)
+{
+ VirtIOS390Device *dev = to_virtio_s390_device_fast(d);
+ uint64_t token = s390_virtio_device_vq_token(dev, vector);
+ S390CPU *cpu = s390_cpu_addr2state(0);
+
+ s390_virtio_irq(cpu, 0, token);
+}
+
+static unsigned virtio_s390_get_features(DeviceState *d)
+{
+ VirtIOS390Device *dev = to_virtio_s390_device(d);
+ return dev->host_features;
+}
+
+/**************** S390 Virtio Bus Device Descriptions *******************/
+
+static const VirtIOBindings virtio_s390_bindings = {
+ .notify = virtio_s390_notify,
+ .get_features = virtio_s390_get_features,
+};
+
+static Property s390_virtio_net_properties[] = {
+ DEFINE_NIC_PROPERTIES(VirtIOS390Device, nic),
+ DEFINE_PROP_UINT32("x-txtimer", VirtIOS390Device,
+ net.txtimer, TX_TIMER_INTERVAL),
+ DEFINE_PROP_INT32("x-txburst", VirtIOS390Device,
+ net.txburst, TX_BURST),
+ DEFINE_PROP_STRING("tx", VirtIOS390Device, net.tx),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void s390_virtio_net_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
+
+ k->init = s390_virtio_net_init;
+ dc->props = s390_virtio_net_properties;
+}
+
+static const TypeInfo s390_virtio_net = {
+ .name = "virtio-net-s390",
+ .parent = TYPE_VIRTIO_S390_DEVICE,
+ .instance_size = sizeof(VirtIOS390Device),
+ .class_init = s390_virtio_net_class_init,
+};
+
+static Property s390_virtio_blk_properties[] = {
+ DEFINE_BLOCK_PROPERTIES(VirtIOS390Device, blk.conf),
+ DEFINE_BLOCK_CHS_PROPERTIES(VirtIOS390Device, blk.conf),
+ DEFINE_PROP_STRING("serial", VirtIOS390Device, blk.serial),
+#ifdef __linux__
+ DEFINE_PROP_BIT("scsi", VirtIOS390Device, blk.scsi, 0, true),
+#endif
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void s390_virtio_blk_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
+
+ k->init = s390_virtio_blk_init;
+ dc->props = s390_virtio_blk_properties;
+}
+
+static const TypeInfo s390_virtio_blk = {
+ .name = "virtio-blk-s390",
+ .parent = TYPE_VIRTIO_S390_DEVICE,
+ .instance_size = sizeof(VirtIOS390Device),
+ .class_init = s390_virtio_blk_class_init,
+};
+
+static Property s390_virtio_serial_properties[] = {
+ DEFINE_PROP_UINT32("max_ports", VirtIOS390Device,
+ serial.max_virtserial_ports, 31),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void s390_virtio_serial_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
+
+ k->init = s390_virtio_serial_init;
+ dc->props = s390_virtio_serial_properties;
+}
+
+static const TypeInfo s390_virtio_serial = {
+ .name = "virtio-serial-s390",
+ .parent = TYPE_VIRTIO_S390_DEVICE,
+ .instance_size = sizeof(VirtIOS390Device),
+ .class_init = s390_virtio_serial_class_init,
+};
+
+static void s390_virtio_rng_initfn(Object *obj)
+{
+ VirtIOS390Device *dev = VIRTIO_S390_DEVICE(obj);
+
+ object_property_add_link(obj, "rng", TYPE_RNG_BACKEND,
+ (Object **)&dev->rng.rng, NULL);
+}
+
+static void s390_virtio_rng_class_init(ObjectClass *klass, void *data)
+{
+ VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
+
+ k->init = s390_virtio_rng_init;
+}
+
+static const TypeInfo s390_virtio_rng = {
+ .name = "virtio-rng-s390",
+ .parent = TYPE_VIRTIO_S390_DEVICE,
+ .instance_size = sizeof(VirtIOS390Device),
+ .instance_init = s390_virtio_rng_initfn,
+ .class_init = s390_virtio_rng_class_init,
+};
+
+static int s390_virtio_busdev_init(DeviceState *dev)
+{
+ VirtIOS390Device *_dev = (VirtIOS390Device *)dev;
+ VirtIOS390DeviceClass *_info = VIRTIO_S390_DEVICE_GET_CLASS(dev);
+
+ virtio_s390_bus_new(&_dev->bus, _dev);
+
+ return _info->init(_dev);
+}
+
+static void s390_virtio_busdev_reset(DeviceState *dev)
+{
+ VirtIOS390Device *_dev = (VirtIOS390Device *)dev;
+
+ virtio_reset(_dev->vdev);
+}
+
+static void virtio_s390_device_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->init = s390_virtio_busdev_init;
+ dc->bus_type = TYPE_S390_VIRTIO_BUS;
+ dc->unplug = qdev_simple_unplug_cb;
+ dc->reset = s390_virtio_busdev_reset;
+}
+
+static const TypeInfo virtio_s390_device_info = {
+ .name = TYPE_VIRTIO_S390_DEVICE,
+ .parent = TYPE_DEVICE,
+ .instance_size = sizeof(VirtIOS390Device),
+ .class_init = virtio_s390_device_class_init,
+ .class_size = sizeof(VirtIOS390DeviceClass),
+ .abstract = true,
+};
+
+static Property s390_virtio_scsi_properties[] = {
+ DEFINE_VIRTIO_SCSI_PROPERTIES(VirtIOS390Device, host_features, scsi),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+static void s390_virtio_scsi_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ VirtIOS390DeviceClass *k = VIRTIO_S390_DEVICE_CLASS(klass);
+
+ k->init = s390_virtio_scsi_init;
+ dc->props = s390_virtio_scsi_properties;
+}
+
+static const TypeInfo s390_virtio_scsi = {
+ .name = "virtio-scsi-s390",
+ .parent = TYPE_VIRTIO_S390_DEVICE,
+ .instance_size = sizeof(VirtIOS390Device),
+ .class_init = s390_virtio_scsi_class_init,
+};
+
+/***************** S390 Virtio Bus Bridge Device *******************/
+/* Only required to have the virtio bus as child in the system bus */
+
+static int s390_virtio_bridge_init(SysBusDevice *dev)
+{
+ /* nothing */
+ return 0;
+}
+
+static void s390_virtio_bridge_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+ SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
+
+ k->init = s390_virtio_bridge_init;
+ dc->no_user = 1;
+}
+
+static const TypeInfo s390_virtio_bridge_info = {
+ .name = "s390-virtio-bridge",
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(SysBusDevice),
+ .class_init = s390_virtio_bridge_class_init,
+};
+
+/* virtio-s390-bus */
+
+void virtio_s390_bus_new(VirtioBusState *bus, VirtIOS390Device *dev)
+{
+ DeviceState *qdev = DEVICE(dev);
+ BusState *qbus;
+ qbus_create_inplace((BusState *)bus, TYPE_VIRTIO_S390_BUS, qdev, NULL);
+ qbus = BUS(bus);
+ qbus->allow_hotplug = 0;
+}
+
+static void virtio_s390_bus_class_init(ObjectClass *klass, void *data)
+{
+ VirtioBusClass *k = VIRTIO_BUS_CLASS(klass);
+ BusClass *bus_class = BUS_CLASS(klass);
+ bus_class->max_dev = 1;
+ k->notify = virtio_s390_notify;
+ k->get_features = virtio_s390_get_features;
+}
+
+static const TypeInfo virtio_s390_bus_info = {
+ .name = TYPE_VIRTIO_S390_BUS,
+ .parent = TYPE_VIRTIO_BUS,
+ .instance_size = sizeof(VirtioS390BusState),
+ .class_init = virtio_s390_bus_class_init,
+};
+
+static void s390_virtio_register_types(void)
+{
+ type_register_static(&virtio_s390_bus_info);
+ type_register_static(&s390_virtio_bus_info);
+ type_register_static(&virtio_s390_device_info);
+ type_register_static(&s390_virtio_serial);
+ type_register_static(&s390_virtio_blk);
+ type_register_static(&s390_virtio_net);
+ type_register_static(&s390_virtio_scsi);
+ type_register_static(&s390_virtio_rng);
+ type_register_static(&s390_virtio_bridge_info);
+}
+
+type_init(s390_virtio_register_types)
--- /dev/null
+/*
+ * QEMU S390x VirtIO BUS definitions
+ *
+ * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+#ifndef HW_S390_VIRTIO_BUS_H
+#define HW_S390_VIRTIO_BUS_H 1
+
+#include "hw/virtio-blk.h"
+#include "hw/virtio-net.h"
+#include "hw/virtio-rng.h"
+#include "hw/virtio-serial.h"
+#include "hw/virtio-scsi.h"
+#include "hw/virtio-bus.h"
+
+#define VIRTIO_DEV_OFFS_TYPE 0 /* 8 bits */
+#define VIRTIO_DEV_OFFS_NUM_VQ 1 /* 8 bits */
+#define VIRTIO_DEV_OFFS_FEATURE_LEN 2 /* 8 bits */
+#define VIRTIO_DEV_OFFS_CONFIG_LEN 3 /* 8 bits */
+#define VIRTIO_DEV_OFFS_STATUS 4 /* 8 bits */
+#define VIRTIO_DEV_OFFS_CONFIG 5 /* dynamic */
+
+#define VIRTIO_VQCONFIG_OFFS_TOKEN 0 /* 64 bits */
+#define VIRTIO_VQCONFIG_OFFS_ADDRESS 8 /* 64 bits */
+#define VIRTIO_VQCONFIG_OFFS_NUM 16 /* 16 bits */
+#define VIRTIO_VQCONFIG_LEN 24
+
+#define VIRTIO_RING_LEN (TARGET_PAGE_SIZE * 3)
+#define VIRTIO_VRING_AVAIL_IDX_OFFS 2
+#define VIRTIO_VRING_USED_IDX_OFFS 2
+#define S390_DEVICE_PAGES 512
+
+#define VIRTIO_PARAM_MASK 0xff
+#define VIRTIO_PARAM_VRING_INTERRUPT 0x0
+#define VIRTIO_PARAM_CONFIG_CHANGED 0x1
+#define VIRTIO_PARAM_DEV_ADD 0x2
+
+#define TYPE_VIRTIO_S390_DEVICE "virtio-s390-device"
+#define VIRTIO_S390_DEVICE(obj) \
+ OBJECT_CHECK(VirtIOS390Device, (obj), TYPE_VIRTIO_S390_DEVICE)
+#define VIRTIO_S390_DEVICE_CLASS(klass) \
+ OBJECT_CLASS_CHECK(VirtIOS390DeviceClass, (klass), TYPE_VIRTIO_S390_DEVICE)
+#define VIRTIO_S390_DEVICE_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(VirtIOS390DeviceClass, (obj), TYPE_VIRTIO_S390_DEVICE)
+
+#define TYPE_S390_VIRTIO_BUS "s390-virtio-bus"
+#define S390_VIRTIO_BUS(obj) \
+ OBJECT_CHECK(VirtIOS390Bus, (obj), TYPE_S390_VIRTIO_BUS)
+
+/* virtio-s390-bus */
+
+typedef struct VirtioBusState VirtioS390BusState;
+typedef struct VirtioBusClass VirtioS390BusClass;
+
+#define TYPE_VIRTIO_S390_BUS "virtio-s390-bus"
+#define VIRTIO_S390_BUS(obj) \
+ OBJECT_CHECK(VirtioS390BusState, (obj), TYPE_VIRTIO_S390_BUS)
+#define VIRTIO_S390_BUS_GET_CLASS(obj) \
+ OBJECT_GET_CLASS(VirtioS390BusClass, obj, TYPE_VIRTIO_S390_BUS)
+#define VIRTIO_S390_BUS_CLASS(klass) \
+ OBJECT_CLASS_CHECK(VirtioS390BusClass, klass, TYPE_VIRTIO_S390_BUS)
+
+
+typedef struct VirtIOS390Device VirtIOS390Device;
+
+void virtio_s390_bus_new(VirtioBusState *bus, VirtIOS390Device *dev);
+
+typedef struct VirtIOS390DeviceClass {
+ DeviceClass qdev;
+ int (*init)(VirtIOS390Device *dev);
+} VirtIOS390DeviceClass;
+
+struct VirtIOS390Device {
+ DeviceState qdev;
+ ram_addr_t dev_offs;
+ ram_addr_t feat_offs;
+ uint8_t feat_len;
+ VirtIODevice *vdev;
+ VirtIOBlkConf blk;
+ NICConf nic;
+ uint32_t host_features;
+ virtio_serial_conf serial;
+ virtio_net_conf net;
+ VirtIOSCSIConf scsi;
+ VirtIORNGConf rng;
+ VirtioBusState bus;
+};
+
+typedef struct VirtIOS390Bus {
+ BusState bus;
+
+ VirtIOS390Device *console;
+ ram_addr_t dev_page;
+ ram_addr_t dev_offs;
+ ram_addr_t next_ring;
+} VirtIOS390Bus;
+
+
+void s390_virtio_device_update_status(VirtIOS390Device *dev);
+
+VirtIOS390Device *s390_virtio_bus_console(VirtIOS390Bus *bus);
+VirtIOS390Bus *s390_virtio_bus_init(ram_addr_t *ram_size);
+
+VirtIOS390Device *s390_virtio_bus_find_vring(VirtIOS390Bus *bus,
+ ram_addr_t mem, int *vq_num);
+VirtIOS390Device *s390_virtio_bus_find_mem(VirtIOS390Bus *bus, ram_addr_t mem);
+void s390_virtio_device_sync(VirtIOS390Device *dev);
+void s390_virtio_reset_idx(VirtIOS390Device *dev);
+
+
+#endif
*/
#include "cpu.h"
-#include "hw/s390-virtio.h"
+#include "hw/s390x/s390-virtio.h"
#define MAX_DIAG_SUBCODES 255
--- /dev/null
+/*
+ * QEMU S390 virtio target
+ *
+ * Copyright (c) 2009 Alexander Graf <agraf@suse.de>
+ * Copyright IBM Corp 2012
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 2 of the License, or (at your option) any later version.
+ *
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
+ *
+ * Contributions after 2012-10-29 are licensed under the terms of the
+ * GNU GPL, version 2 or (at your option) any later version.
+ *
+ * You should have received a copy of the GNU (Lesser) General Public
+ * License along with this library; if not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "hw/hw.h"
+#include "block/block.h"
+#include "sysemu/blockdev.h"
+#include "sysemu/sysemu.h"
+#include "net/net.h"
+#include "hw/boards.h"
+#include "monitor/monitor.h"
+#include "hw/loader.h"
+#include "hw/virtio.h"
+#include "hw/sysbus.h"
+#include "sysemu/kvm.h"
+#include "exec/address-spaces.h"
+
+#include "hw/s390x/s390-virtio-bus.h"
+#include "hw/s390x/sclp.h"
+#include "hw/s390x/s390-virtio.h"
+
+//#define DEBUG_S390
+
+#ifdef DEBUG_S390
+#define dprintf(fmt, ...) \
+ do { fprintf(stderr, fmt, ## __VA_ARGS__); } while (0)
+#else
+#define dprintf(fmt, ...) \
+ do { } while (0)
+#endif
+
+#define MAX_BLK_DEVS 10
+
+static VirtIOS390Bus *s390_bus;
+static S390CPU **ipi_states;
+
+S390CPU *s390_cpu_addr2state(uint16_t cpu_addr)
+{
+ if (cpu_addr >= smp_cpus) {
+ return NULL;
+ }
+
+ return ipi_states[cpu_addr];
+}
+
+static int s390_virtio_hcall_notify(const uint64_t *args)
+{
+ uint64_t mem = args[0];
+ int r = 0, i;
+
+ if (mem > ram_size) {
+ VirtIOS390Device *dev = s390_virtio_bus_find_vring(s390_bus, mem, &i);
+ if (dev) {
+ virtio_queue_notify(dev->vdev, i);
+ } else {
+ r = -EINVAL;
+ }
+ } else {
+ /* Early printk */
+ }
+ return r;
+}
+
+static int s390_virtio_hcall_reset(const uint64_t *args)
+{
+ uint64_t mem = args[0];
+ VirtIOS390Device *dev;
+
+ dev = s390_virtio_bus_find_mem(s390_bus, mem);
+ virtio_reset(dev->vdev);
+ stb_phys(dev->dev_offs + VIRTIO_DEV_OFFS_STATUS, 0);
+ s390_virtio_device_sync(dev);
+ s390_virtio_reset_idx(dev);
+
+ return 0;
+}
+
+static int s390_virtio_hcall_set_status(const uint64_t *args)
+{
+ uint64_t mem = args[0];
+ int r = 0;
+ VirtIOS390Device *dev;
+
+ dev = s390_virtio_bus_find_mem(s390_bus, mem);
+ if (dev) {
+ s390_virtio_device_update_status(dev);
+ } else {
+ r = -EINVAL;
+ }
+ return r;
+}
+
+static void s390_virtio_register_hcalls(void)
+{
+ s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY,
+ s390_virtio_hcall_notify);
+ s390_register_virtio_hypercall(KVM_S390_VIRTIO_RESET,
+ s390_virtio_hcall_reset);
+ s390_register_virtio_hypercall(KVM_S390_VIRTIO_SET_STATUS,
+ s390_virtio_hcall_set_status);
+}
+
+/*
+ * The number of running CPUs. On s390 a shutdown is the state of all CPUs
+ * being either stopped or disabled (for interrupts) waiting. We have to
+ * track this number to call the shutdown sequence accordingly. This
+ * number is modified either on startup or while holding the big qemu lock.
+ */
+static unsigned s390_running_cpus;
+
+void s390_add_running_cpu(CPUS390XState *env)
+{
+ if (env->halted) {
+ s390_running_cpus++;
+ env->halted = 0;
+ env->exception_index = -1;
+ }
+}
+
+unsigned s390_del_running_cpu(CPUS390XState *env)
+{
+ if (env->halted == 0) {
+ assert(s390_running_cpus >= 1);
+ s390_running_cpus--;
+ env->halted = 1;
+ env->exception_index = EXCP_HLT;
+ }
+ return s390_running_cpus;
+}
+
+void s390_init_ipl_dev(const char *kernel_filename,
+ const char *kernel_cmdline,
+ const char *initrd_filename)
+{
+ DeviceState *dev;
+
+ dev = qdev_create(NULL, "s390-ipl");
+ if (kernel_filename) {
+ qdev_prop_set_string(dev, "kernel", kernel_filename);
+ }
+ if (initrd_filename) {
+ qdev_prop_set_string(dev, "initrd", initrd_filename);
+ }
+ qdev_prop_set_string(dev, "cmdline", kernel_cmdline);
+ qdev_init_nofail(dev);
+}
+
+void s390_init_cpus(const char *cpu_model, uint8_t *storage_keys)
+{
+ int i;
+
+ if (cpu_model == NULL) {
+ cpu_model = "host";
+ }
+
+ ipi_states = g_malloc(sizeof(S390CPU *) * smp_cpus);
+
+ for (i = 0; i < smp_cpus; i++) {
+ S390CPU *cpu;
+
+ cpu = cpu_s390x_init(cpu_model);
+
+ ipi_states[i] = cpu;
+ cpu->env.halted = 1;
+ cpu->env.exception_index = EXCP_HLT;
+ cpu->env.storage_keys = storage_keys;
+ }
+}
+
+
+void s390_create_virtio_net(BusState *bus, const char *name)
+{
+ int i;
+
+ for (i = 0; i < nb_nics; i++) {
+ NICInfo *nd = &nd_table[i];
+ DeviceState *dev;
+
+ if (!nd->model) {
+ nd->model = g_strdup("virtio");
+ }
+
+ if (strcmp(nd->model, "virtio")) {
+ fprintf(stderr, "S390 only supports VirtIO nics\n");
+ exit(1);
+ }
+
+ dev = qdev_create(bus, name);
+ qdev_set_nic_properties(dev, nd);
+ qdev_init_nofail(dev);
+ }
+}
+
+/* PC hardware initialisation */
+static void s390_init(QEMUMachineInitArgs *args)
+{
+ ram_addr_t my_ram_size = args->ram_size;
+ MemoryRegion *sysmem = get_system_memory();
+ MemoryRegion *ram = g_new(MemoryRegion, 1);
+ int shift = 0;
+ uint8_t *storage_keys;
+ void *virtio_region;
+ hwaddr virtio_region_len;
+ hwaddr virtio_region_start;
+
+ /* 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);
+
+ /* lets propagate the changed ram size into the global variable. */
+ ram_size = my_ram_size;
+
+ /* get a BUS */
+ s390_bus = s390_virtio_bus_init(&my_ram_size);
+ s390_sclp_init();
+ s390_init_ipl_dev(args->kernel_filename, args->kernel_cmdline,
+ args->initrd_filename);
+
+ /* register hypercalls */
+ s390_virtio_register_hcalls();
+
+ /* allocate RAM */
+ memory_region_init_ram(ram, "s390.ram", my_ram_size);
+ vmstate_register_ram_global(ram);
+ memory_region_add_subregion(sysmem, 0, ram);
+
+ /* clear virtio region */
+ virtio_region_len = my_ram_size - ram_size;
+ virtio_region_start = ram_size;
+ virtio_region = cpu_physical_memory_map(virtio_region_start,
+ &virtio_region_len, true);
+ memset(virtio_region, 0, virtio_region_len);
+ cpu_physical_memory_unmap(virtio_region, virtio_region_len, 1,
+ virtio_region_len);
+
+ /* allocate storage keys */
+ storage_keys = g_malloc0(my_ram_size / TARGET_PAGE_SIZE);
+
+ /* init CPUs */
+ s390_init_cpus(args->cpu_model, storage_keys);
+
+ /* Create VirtIO network adapters */
+ s390_create_virtio_net((BusState *)s390_bus, "virtio-net-s390");
+}
+
+static QEMUMachine s390_machine = {
+ .name = "s390-virtio",
+ .alias = "s390",
+ .desc = "VirtIO based S390 machine",
+ .init = s390_init,
+ .block_default_type = IF_VIRTIO,
+ .no_cdrom = 1,
+ .no_floppy = 1,
+ .no_serial = 1,
+ .no_parallel = 1,
+ .no_sdcard = 1,
+ .use_virtcon = 1,
+ .max_cpus = 255,
+ .is_default = 1,
+ DEFAULT_MACHINE_OPTIONS,
+};
+
+static void s390_machine_init(void)
+{
+ qemu_register_machine(&s390_machine);
+}
+
+machine_init(s390_machine_init);
--- /dev/null
+/*
+ * Virtio interfaces for s390
+ *
+ * Copyright 2012 IBM Corp.
+ * Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or (at
+ * your option) any later version. See the COPYING file in the top-level
+ * directory.
+ */
+
+#ifndef HW_S390_VIRTIO_H
+#define HW_S390_VIRTIO_H 1
+
+#define KVM_S390_VIRTIO_NOTIFY 0
+#define KVM_S390_VIRTIO_RESET 1
+#define KVM_S390_VIRTIO_SET_STATUS 2
+
+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, uint8_t *storage_keys);
+void s390_init_ipl_dev(const char *kernel_filename,
+ const char *kernel_cmdline,
+ const char *initrd_filename);
+void s390_create_virtio_net(BusState *bus, const char *name);
+#endif
projects / qemu.git / commitdiff