* License along with this library; if not, see <http://www.gnu.org/licenses/>.
*/
+#include "qemu/osdep.h"
#include "hw/hw.h"
+#include "qapi/qmp/qerror.h"
+#include "qemu/error-report.h"
#include "sysemu/block-backend.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/virtio.h"
-#include "hw/sysbus.h"
#include "sysemu/kvm.h"
#include "exec/address-spaces.h"
+#include "sysemu/qtest.h"
-#include "hw/s390x/s390-virtio-bus.h"
#include "hw/s390x/sclp.h"
#include "hw/s390x/s390_flic.h"
#include "hw/s390x/s390-virtio.h"
+#include "hw/s390x/storage-keys.h"
+#include "hw/s390x/ipl.h"
+#include "cpu.h"
//#define DEBUG_S390
#endif
#define MAX_BLK_DEVS 10
-#define ZIPL_FILENAME "s390-zipl.rom"
-#define TYPE_S390_MACHINE "s390-machine"
-static VirtIOS390Bus *s390_bus;
-static S390CPU **ipi_states;
+#define S390_TOD_CLOCK_VALUE_MISSING 0x00
+#define S390_TOD_CLOCK_VALUE_PRESENT 0x01
+
+static S390CPU **cpu_states;
S390CPU *s390_cpu_addr2state(uint16_t cpu_addr)
{
- if (cpu_addr >= smp_cpus) {
+ if (cpu_addr >= max_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);
- if (dev == NULL) {
- return -EINVAL;
- }
- virtio_reset(dev->vdev);
- stb_phys(&address_space_memory, 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);
+ /* Fast lookup via CPU ID */
+ return cpu_states[cpu_addr];
}
void s390_init_ipl_dev(const char *kernel_filename,
const char *kernel_cmdline,
const char *initrd_filename,
- const char *firmware)
+ const char *firmware,
+ bool enforce_bios)
{
- DeviceState *dev;
+ Object *new = object_new(TYPE_S390_IPL);
+ DeviceState *dev = DEVICE(new);
- dev = qdev_create(NULL, "s390-ipl");
if (kernel_filename) {
qdev_prop_set_string(dev, "kernel", kernel_filename);
}
}
qdev_prop_set_string(dev, "cmdline", kernel_cmdline);
qdev_prop_set_string(dev, "firmware", firmware);
+ qdev_prop_set_bit(dev, "enforce_bios", enforce_bios);
+ object_property_add_child(qdev_get_machine(), TYPE_S390_IPL,
+ new, NULL);
+ object_unref(new);
qdev_init_nofail(dev);
}
-void s390_init_cpus(const char *cpu_model, uint8_t *storage_keys)
+void s390_init_cpus(MachineState *machine)
{
int i;
- if (cpu_model == NULL) {
- cpu_model = "host";
+ if (machine->cpu_model == NULL) {
+ machine->cpu_model = "host";
}
- ipi_states = g_malloc(sizeof(S390CPU *) * smp_cpus);
+ cpu_states = g_malloc0(sizeof(S390CPU *) * max_cpus);
for (i = 0; i < smp_cpus; i++) {
S390CPU *cpu;
- CPUState *cs;
- cpu = cpu_s390x_init(cpu_model);
- cs = CPU(cpu);
+ cpu = cpu_s390x_init(machine->cpu_model);
- ipi_states[i] = cpu;
- cs->halted = 1;
- cs->exception_index = EXCP_HLT;
- cpu->env.storage_keys = storage_keys;
+ cpu_states[i] = cpu;
}
}
nd->model = g_strdup("virtio");
}
- if (strcmp(nd->model, "virtio")) {
- fprintf(stderr, "S390 only supports VirtIO nics\n");
- exit(1);
- }
+ qemu_check_nic_model(nd, "virtio");
dev = qdev_create(bus, name);
qdev_set_nic_properties(dev, nd);
}
}
-/* PC hardware initialisation */
-static void s390_init(MachineState *machine)
+void gtod_save(QEMUFile *f, void *opaque)
{
- ram_addr_t my_ram_size = machine->ram_size;
- MemoryRegion *sysmem = get_system_memory();
- MemoryRegion *ram = g_new(MemoryRegion, 1);
- int increment_size = 20;
- uint8_t *storage_keys;
- void *virtio_region;
- hwaddr virtio_region_len;
- hwaddr virtio_region_start;
-
- /*
- * The storage increment size is a multiple of 1M and is a power of 2.
- * The number of storage increments must be MAX_STORAGE_INCREMENTS or
- * fewer.
- */
- while ((my_ram_size >> increment_size) > MAX_STORAGE_INCREMENTS) {
- increment_size++;
+ uint64_t tod_low;
+ uint8_t tod_high;
+ int r;
+
+ r = s390_get_clock(&tod_high, &tod_low);
+ if (r) {
+ fprintf(stderr, "WARNING: Unable to get guest clock for migration. "
+ "Error code %d. Guest clock will not be migrated "
+ "which could cause the guest to hang.\n", r);
+ qemu_put_byte(f, S390_TOD_CLOCK_VALUE_MISSING);
+ return;
}
- my_ram_size = my_ram_size >> increment_size << increment_size;
-
- /* let's 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(machine->kernel_filename, machine->kernel_cmdline,
- machine->initrd_filename, ZIPL_FILENAME);
- s390_flic_init();
-
- /* register hypercalls */
- s390_virtio_register_hcalls();
-
- /* allocate RAM */
- memory_region_init_ram(ram, NULL, "s390.ram", my_ram_size, &error_abort);
- 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(machine->cpu_model, storage_keys);
-
- /* Create VirtIO network adapters */
- s390_create_virtio_net((BusState *)s390_bus, "virtio-net-s390");
+
+ qemu_put_byte(f, S390_TOD_CLOCK_VALUE_PRESENT);
+ qemu_put_byte(f, tod_high);
+ qemu_put_be64(f, tod_low);
+}
+
+int gtod_load(QEMUFile *f, void *opaque, int version_id)
+{
+ uint64_t tod_low;
+ uint8_t tod_high;
+ int r;
+
+ if (qemu_get_byte(f) == S390_TOD_CLOCK_VALUE_MISSING) {
+ fprintf(stderr, "WARNING: Guest clock was not migrated. This could "
+ "cause the guest to hang.\n");
+ return 0;
+ }
+
+ tod_high = qemu_get_byte(f);
+ tod_low = qemu_get_be64(f);
+
+ r = s390_set_clock(&tod_high, &tod_low);
+ if (r) {
+ fprintf(stderr, "WARNING: Unable to set guest clock value. "
+ "s390_get_clock returned error %d. This could cause "
+ "the guest to hang.\n", r);
+ }
+
+ return 0;
}
void s390_nmi(NMIState *n, int cpu_index, Error **errp)
CPUState *cs = qemu_get_cpu(cpu_index);
if (s390_cpu_restart(S390_CPU(cs))) {
- error_set(errp, QERR_UNSUPPORTED);
+ error_setg(errp, QERR_UNSUPPORTED);
}
}
-static void s390_machine_class_init(ObjectClass *oc, void *data)
+void s390_machine_reset(void)
{
- MachineClass *mc = MACHINE_CLASS(oc);
- NMIClass *nc = NMI_CLASS(oc);
-
- mc->name = "s390-virtio";
- mc->alias = "s390";
- mc->desc = "VirtIO based S390 machine";
- mc->init = s390_init;
- mc->block_default_type = IF_VIRTIO;
- mc->max_cpus = 255;
- mc->no_serial = 1;
- mc->no_parallel = 1;
- mc->use_virtcon = 1;
- mc->no_floppy = 1;
- mc->no_cdrom = 1;
- mc->no_sdcard = 1;
- mc->is_default = 1;
- nc->nmi_monitor_handler = s390_nmi;
-}
+ S390CPU *ipl_cpu = S390_CPU(qemu_get_cpu(0));
-static const TypeInfo s390_machine_info = {
- .name = TYPE_S390_MACHINE,
- .parent = TYPE_MACHINE,
- .class_init = s390_machine_class_init,
- .interfaces = (InterfaceInfo[]) {
- { TYPE_NMI },
- { }
- },
-};
-
-static void s390_machine_register_types(void)
-{
- type_register_static(&s390_machine_info);
-}
+ qemu_devices_reset();
+ s390_cmma_reset();
+ s390_crypto_reset();
-type_init(s390_machine_register_types)
+ /* all cpus are stopped - configure and start the ipl cpu only */
+ s390_ipl_prepare_cpu(ipl_cpu);
+ s390_cpu_set_state(CPU_STATE_OPERATING, ipl_cpu);
+}
projects / qemu.git / blobdiff