#include "exec/address-spaces.h"
#include "s390-virtio.h"
#include "hw/s390x/sclp.h"
+#include "hw/s390x/s390_flic.h"
#include "ioinst.h"
#include "css.h"
#include "virtio-ccw.h"
+#include "qemu/config-file.h"
+#include "s390-pci-bus.h"
+
+#define TYPE_S390_CCW_MACHINE "s390-ccw-machine"
+
+void io_subsystem_reset(void)
+{
+ DeviceState *css, *sclp, *flic;
+
+ 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);
+ }
+}
static int virtio_ccw_hcall_notify(const uint64_t *args)
{
if (!sch || !css_subch_visible(sch)) {
return -EINVAL;
}
+ if (queue >= VIRTIO_PCI_QUEUE_MAX) {
+ return -EINVAL;
+ }
virtio_queue_notify(virtio_ccw_get_vdev(sch), queue);
return 0;
virtio_ccw_hcall_early_printk);
}
-static void ccw_init(QEMUMachineInitArgs *args)
+static void ccw_init(MachineState *machine)
{
- ram_addr_t my_ram_size = args->ram_size;
+ ram_addr_t my_ram_size = machine->ram_size;
MemoryRegion *sysmem = get_system_memory();
MemoryRegion *ram = g_new(MemoryRegion, 1);
- int shift = 0;
+ sclpMemoryHotplugDev *mhd = init_sclp_memory_hotplug_dev();
uint8_t *storage_keys;
int ret;
VirtualCssBus *css_bus;
-
- /* 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++;
+ DeviceState *dev;
+ QemuOpts *opts = qemu_opts_find(qemu_find_opts("memory"), NULL);
+ ram_addr_t pad_size = 0;
+ ram_addr_t maxmem = qemu_opt_get_size(opts, "maxmem", my_ram_size);
+ ram_addr_t standby_mem_size = maxmem - my_ram_size;
+
+ /* 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.
+ * The variable 'mhd->increment_size' is an exponent of 2 that can be
+ * used to calculate the size (in bytes) of an increment. */
+ mhd->increment_size = 20;
+ while ((my_ram_size >> mhd->increment_size) > MAX_STORAGE_INCREMENTS) {
+ mhd->increment_size++;
+ }
+ while ((standby_mem_size >> mhd->increment_size) > MAX_STORAGE_INCREMENTS) {
+ mhd->increment_size++;
}
- my_ram_size = my_ram_size >> (20 + shift) << (20 + shift);
- /* lets propagate the changed ram size into the global variable. */
+ /* The core and standby memory areas need to be aligned with
+ * the increment size. In effect, this can cause the
+ * user-specified memory size to be rounded down to align
+ * with the nearest increment boundary. */
+ standby_mem_size = standby_mem_size >> mhd->increment_size
+ << mhd->increment_size;
+ my_ram_size = my_ram_size >> mhd->increment_size
+ << mhd->increment_size;
+
+ /* let's propagate the changed ram size into the global variable. */
ram_size = my_ram_size;
/* get a BUS */
css_bus = virtual_css_bus_init();
s390_sclp_init();
- s390_init_ipl_dev(args->kernel_filename, args->kernel_cmdline,
- args->initrd_filename);
+ s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline,
+ 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, "s390.ram", my_ram_size);
+ /* allocate RAM for core */
+ 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);
+ /* If the size of ram is not on a MEM_SECTION_SIZE boundary,
+ calculate the pad size necessary to force this boundary. */
+ if (standby_mem_size) {
+ if (my_ram_size % MEM_SECTION_SIZE) {
+ pad_size = MEM_SECTION_SIZE - my_ram_size % MEM_SECTION_SIZE;
+ }
+ my_ram_size += standby_mem_size + pad_size;
+ mhd->pad_size = pad_size;
+ mhd->standby_mem_size = standby_mem_size;
+ }
+
/* allocate storage keys */
storage_keys = g_malloc0(my_ram_size / TARGET_PAGE_SIZE);
/* init CPUs */
- s390_init_cpus(args->cpu_model, storage_keys);
+ s390_init_cpus(machine->cpu_model, storage_keys);
if (kvm_enabled()) {
kvm_s390_enable_css_support(s390_cpu_addr2state(0));
s390_create_virtio_net(BUS(css_bus), "virtio-net-ccw");
}
-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,
- DEFAULT_MACHINE_OPTIONS,
+static void ccw_machine_class_init(ObjectClass *oc, void *data)
+{
+ MachineClass *mc = MACHINE_CLASS(oc);
+ NMIClass *nc = NMI_CLASS(oc);
+
+ mc->name = "s390-ccw-virtio";
+ mc->alias = "s390-ccw";
+ mc->desc = "VirtIO-ccw based S390 machine";
+ mc->init = ccw_init;
+ 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 const TypeInfo ccw_machine_info = {
+ .name = TYPE_S390_CCW_MACHINE,
+ .parent = TYPE_MACHINE,
+ .class_init = ccw_machine_class_init,
+ .interfaces = (InterfaceInfo[]) {
+ { TYPE_NMI },
+ { }
+ },
};
-static void ccw_machine_init(void)
+static void ccw_machine_register_types(void)
{
- qemu_register_machine(&ccw_machine);
+ type_register_static(&ccw_machine_info);
}
-machine_init(ccw_machine_init)
+type_init(ccw_machine_register_types)
projects / mirror_qemu.git / blobdiff