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qemu/hw/s390x/s390-virtio-ccw.c
Jonah Palmer 594b543a4a virtio-ccw: Handle extra notification data 
Add support to virtio-ccw devices for handling the extra data sent from
the driver to the device when the VIRTIO_F_NOTIFICATION_DATA transport
feature has been negotiated.

The extra data that's passed to the virtio-ccw device when this feature
is enabled varies depending on the device's virtqueue layout.

That data passed to the virtio-ccw device is in the same format as the
data passed to virtio-pci devices.

Signed-off-by: Jonah Palmer <jonah.palmer@oracle.com>
Message-Id: <20240315165557.26942-5-jonah.palmer@oracle.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2024-07-01 14:56:23 -04:00

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/*
* virtio ccw machine
*
* Copyright 2012, 2020 IBM Corp.
* Copyright (c) 2009 Alexander Graf <agraf@suse.de>
* Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
* Janosch Frank <frankja@linux.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.
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "exec/ram_addr.h"
#include "exec/confidential-guest-support.h"
#include "hw/s390x/s390-virtio-hcall.h"
#include "hw/s390x/sclp.h"
#include "hw/s390x/s390_flic.h"
#include "hw/s390x/ioinst.h"
#include "hw/s390x/css.h"
#include "virtio-ccw.h"
#include "qemu/config-file.h"
#include "qemu/ctype.h"
#include "qemu/error-report.h"
#include "qemu/option.h"
#include "qemu/qemu-print.h"
#include "qemu/units.h"
#include "hw/s390x/s390-pci-bus.h"
#include "sysemu/reset.h"
#include "hw/s390x/storage-keys.h"
#include "hw/s390x/storage-attributes.h"
#include "hw/s390x/event-facility.h"
#include "ipl.h"
#include "hw/s390x/s390-virtio-ccw.h"
#include "hw/s390x/css-bridge.h"
#include "hw/s390x/ap-bridge.h"
#include "migration/register.h"
#include "cpu_models.h"
#include "hw/nmi.h"
#include "hw/qdev-properties.h"
#include "hw/s390x/tod.h"
#include "sysemu/sysemu.h"
#include "sysemu/cpus.h"
#include "target/s390x/kvm/pv.h"
#include "migration/blocker.h"
#include "qapi/visitor.h"
#include "hw/s390x/cpu-topology.h"
#include CONFIG_DEVICES
static Error *pv_mig_blocker;
static S390CPU *s390x_new_cpu(const char *typename, uint32_t core_id,
Error **errp)
{
S390CPU *cpu = S390_CPU(object_new(typename));
S390CPU *ret = NULL;
if (!object_property_set_int(OBJECT(cpu), "core-id", core_id, errp)) {
goto out;
}
if (!qdev_realize(DEVICE(cpu), NULL, errp)) {
goto out;
}
ret = cpu;
out:
object_unref(OBJECT(cpu));
return ret;
}
static void s390_init_cpus(MachineState *machine)
{
MachineClass *mc = MACHINE_GET_CLASS(machine);
S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
int i;
if (machine->smp.threads > s390mc->max_threads) {
error_report("S390 does not support more than %d threads.",
s390mc->max_threads);
exit(1);
}
/* initialize possible_cpus */
mc->possible_cpu_arch_ids(machine);
for (i = 0; i < machine->smp.cpus; i++) {
s390x_new_cpu(machine->cpu_type, i, &error_fatal);
}
}
static const char *const reset_dev_types[] = {
TYPE_VIRTUAL_CSS_BRIDGE,
"s390-sclp-event-facility",
"s390-flic",
"diag288",
TYPE_S390_PCI_HOST_BRIDGE,
TYPE_AP_BRIDGE,
};
static void subsystem_reset(void)
{
DeviceState *dev;
int i;
/*
* ISM firmware is sensitive to unexpected changes to the IOMMU, which can
* occur during reset of the vfio-pci device (unmap of entire aperture).
* Ensure any passthrough ISM devices are reset now, while CPUs are paused
* but before vfio-pci cleanup occurs.
*/
s390_pci_ism_reset();
for (i = 0; i < ARRAY_SIZE(reset_dev_types); i++) {
dev = DEVICE(object_resolve_path_type("", reset_dev_types[i], NULL));
if (dev) {
device_cold_reset(dev);
}
}
if (s390_has_topology()) {
s390_topology_reset();
}
}
static int virtio_ccw_hcall_notify(const uint64_t *args)
{
uint64_t subch_id = args[0];
uint64_t data = args[1];
SubchDev *sch;
VirtIODevice *vdev;
int cssid, ssid, schid, m;
uint16_t vq_idx = data;
if (ioinst_disassemble_sch_ident(subch_id, &m, &cssid, &ssid, &schid)) {
return -EINVAL;
}
sch = css_find_subch(m, cssid, ssid, schid);
if (!sch || !css_subch_visible(sch)) {
return -EINVAL;
}
vdev = virtio_ccw_get_vdev(sch);
if (vq_idx >= VIRTIO_QUEUE_MAX || !virtio_queue_get_num(vdev, vq_idx)) {
return -EINVAL;
}
if (virtio_vdev_has_feature(vdev, VIRTIO_F_NOTIFICATION_DATA)) {
virtio_queue_set_shadow_avail_idx(virtio_get_queue(vdev, vq_idx),
(data >> 16) & 0xFFFF);
}
virtio_queue_notify(vdev, vq_idx);
return 0;
}
static int virtio_ccw_hcall_early_printk(const uint64_t *args)
{
uint64_t mem = args[0];
MachineState *ms = MACHINE(qdev_get_machine());
if (mem < ms->ram_size) {
/* Early printk */
return 0;
}
return -EINVAL;
}
static void virtio_ccw_register_hcalls(void)
{
s390_register_virtio_hypercall(KVM_S390_VIRTIO_CCW_NOTIFY,
virtio_ccw_hcall_notify);
/* Tolerate early printk. */
s390_register_virtio_hypercall(KVM_S390_VIRTIO_NOTIFY,
virtio_ccw_hcall_early_printk);
}
static void s390_memory_init(MemoryRegion *ram)
{
MemoryRegion *sysmem = get_system_memory();
/* allocate RAM for core */
memory_region_add_subregion(sysmem, 0, ram);
/*
* Configure the maximum page size. As no memory devices were created
* yet, this is the page size of initial memory only.
*/
s390_set_max_pagesize(qemu_maxrampagesize(), &error_fatal);
/* Initialize storage key device */
s390_skeys_init();
/* Initialize storage attributes device */
s390_stattrib_init();
}
static void s390_init_ipl_dev(const char *kernel_filename,
const char *kernel_cmdline,
const char *initrd_filename, const char *firmware,
const char *netboot_fw, bool enforce_bios)
{
Object *new = object_new(TYPE_S390_IPL);
DeviceState *dev = DEVICE(new);
char *netboot_fw_prop;
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_prop_set_string(dev, "firmware", firmware);
qdev_prop_set_bit(dev, "enforce_bios", enforce_bios);
netboot_fw_prop = object_property_get_str(new, "netboot_fw", &error_abort);
if (!strlen(netboot_fw_prop)) {
qdev_prop_set_string(dev, "netboot_fw", netboot_fw);
}
g_free(netboot_fw_prop);
object_property_add_child(qdev_get_machine(), TYPE_S390_IPL,
new);
object_unref(new);
qdev_realize(dev, NULL, &error_fatal);
}
static void s390_create_virtio_net(BusState *bus, const char *name)
{
DeviceState *dev;
while ((dev = qemu_create_nic_device(name, true, "virtio"))) {
qdev_realize_and_unref(dev, bus, &error_fatal);
}
}
static void s390_create_sclpconsole(SCLPDevice *sclp,
const char *type, Chardev *chardev)
{
SCLPEventFacility *ef = sclp->event_facility;
BusState *ev_fac_bus = sclp_get_event_facility_bus(ef);
DeviceState *dev;
dev = qdev_new(type);
object_property_add_child(OBJECT(ef), type, OBJECT(dev));
qdev_prop_set_chr(dev, "chardev", chardev);
qdev_realize_and_unref(dev, ev_fac_bus, &error_fatal);
}
static void ccw_init(MachineState *machine)
{
MachineClass *mc = MACHINE_GET_CLASS(machine);
S390CcwMachineState *ms = S390_CCW_MACHINE(machine);
int ret;
VirtualCssBus *css_bus;
DeviceState *dev;
ms->sclp = SCLP(object_new(TYPE_SCLP));
object_property_add_child(OBJECT(machine), TYPE_SCLP, OBJECT(ms->sclp));
qdev_realize_and_unref(DEVICE(ms->sclp), NULL, &error_fatal);
/* init memory + setup max page size. Required for the CPU model */
s390_memory_init(machine->ram);
/* init CPUs (incl. CPU model) early so s390_has_feature() works */
s390_init_cpus(machine);
/* Need CPU model to be determined before we can set up PV */
if (machine->cgs) {
confidential_guest_kvm_init(machine->cgs, &error_fatal);
}
s390_flic_init();
/* init the SIGP facility */
s390_init_sigp();
/* create AP bridge and bus(es) */
s390_init_ap();
/* get a BUS */
css_bus = virtual_css_bus_init();
s390_init_ipl_dev(machine->kernel_filename, machine->kernel_cmdline,
machine->initrd_filename,
machine->firmware ?: "s390-ccw.img",
"s390-netboot.img", true);
dev = qdev_new(TYPE_S390_PCI_HOST_BRIDGE);
object_property_add_child(qdev_get_machine(), TYPE_S390_PCI_HOST_BRIDGE,
OBJECT(dev));
sysbus_realize_and_unref(SYS_BUS_DEVICE(dev), &error_fatal);
/* register hypercalls */
virtio_ccw_register_hcalls();
s390_enable_css_support(s390_cpu_addr2state(0));
ret = css_create_css_image(VIRTUAL_CSSID, true);
assert(ret == 0);
css_register_vmstate();
/* Create VirtIO network adapters */
s390_create_virtio_net(BUS(css_bus), mc->default_nic);
/* init consoles */
if (serial_hd(0)) {
s390_create_sclpconsole(ms->sclp, "sclpconsole", serial_hd(0));
}
if (serial_hd(1)) {
s390_create_sclpconsole(ms->sclp, "sclplmconsole", serial_hd(1));
}
/* init the TOD clock */
s390_init_tod();
}
static void s390_cpu_plug(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
ERRP_GUARD();
MachineState *ms = MACHINE(hotplug_dev);
S390CPU *cpu = S390_CPU(dev);
g_assert(!ms->possible_cpus->cpus[cpu->env.core_id].cpu);
ms->possible_cpus->cpus[cpu->env.core_id].cpu = CPU(dev);
if (s390_has_topology()) {
s390_topology_setup_cpu(ms, cpu, errp);
if (*errp) {
return;
}
}
if (dev->hotplugged) {
raise_irq_cpu_hotplug();
}
}
static inline void s390_do_cpu_ipl(CPUState *cs, run_on_cpu_data arg)
{
S390CPU *cpu = S390_CPU(cs);
s390_ipl_prepare_cpu(cpu);
s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu);
}
static void s390_machine_unprotect(S390CcwMachineState *ms)
{
if (!s390_pv_vm_try_disable_async(ms)) {
s390_pv_vm_disable();
}
ms->pv = false;
migrate_del_blocker(&pv_mig_blocker);
ram_block_discard_disable(false);
}
static int s390_machine_protect(S390CcwMachineState *ms)
{
Error *local_err = NULL;
int rc;
/*
* Discarding of memory in RAM blocks does not work as expected with
* protected VMs. Sharing and unsharing pages would be required. Disable
* it for now, until until we have a solution to make at least Linux
* guests either support it (e.g., virtio-balloon) or fail gracefully.
*/
rc = ram_block_discard_disable(true);
if (rc) {
error_report("protected VMs: cannot disable RAM discard");
return rc;
}
error_setg(&pv_mig_blocker,
"protected VMs are currently not migratable.");
rc = migrate_add_blocker(&pv_mig_blocker, &local_err);
if (rc) {
ram_block_discard_disable(false);
error_report_err(local_err);
return rc;
}
/* Create SE VM */
rc = s390_pv_vm_enable();
if (rc) {
ram_block_discard_disable(false);
migrate_del_blocker(&pv_mig_blocker);
return rc;
}
ms->pv = true;
/* Will return 0 if API is not available since it's not vital */
rc = s390_pv_query_info();
if (rc) {
goto out_err;
}
/* Set SE header and unpack */
rc = s390_ipl_prepare_pv_header(&local_err);
if (rc) {
goto out_err;
}
/* Decrypt image */
rc = s390_ipl_pv_unpack();
if (rc) {
goto out_err;
}
/* Verify integrity */
rc = s390_pv_verify();
if (rc) {
goto out_err;
}
return rc;
out_err:
if (local_err) {
error_report_err(local_err);
}
s390_machine_unprotect(ms);
return rc;
}
static void s390_pv_prepare_reset(S390CcwMachineState *ms)
{
CPUState *cs;
if (!s390_is_pv()) {
return;
}
/* Unsharing requires all cpus to be stopped */
CPU_FOREACH(cs) {
s390_cpu_set_state(S390_CPU_STATE_STOPPED, S390_CPU(cs));
}
s390_pv_unshare();
s390_pv_prep_reset();
}
static void s390_machine_reset(MachineState *machine, ShutdownCause reason)
{
S390CcwMachineState *ms = S390_CCW_MACHINE(machine);
enum s390_reset reset_type;
CPUState *cs, *t;
S390CPU *cpu;
/* get the reset parameters, reset them once done */
s390_ipl_get_reset_request(&cs, &reset_type);
/* all CPUs are paused and synchronized at this point */
s390_cmma_reset();
cpu = S390_CPU(cs);
switch (reset_type) {
case S390_RESET_EXTERNAL:
case S390_RESET_REIPL:
/*
* Reset the subsystem which includes a AP reset. If a PV
* guest had APQNs attached the AP reset is a prerequisite to
* unprotecting since the UV checks if all APQNs are reset.
*/
subsystem_reset();
if (s390_is_pv()) {
s390_machine_unprotect(ms);
}
/*
* Device reset includes CPU clear resets so this has to be
* done AFTER the unprotect call above.
*/
qemu_devices_reset(reason);
s390_crypto_reset();
/* configure and start the ipl CPU only */
run_on_cpu(cs, s390_do_cpu_ipl, RUN_ON_CPU_NULL);
break;
case S390_RESET_MODIFIED_CLEAR:
/*
* Subsystem reset needs to be done before we unshare memory
* and lose access to VIRTIO structures in guest memory.
*/
subsystem_reset();
s390_crypto_reset();
s390_pv_prepare_reset(ms);
CPU_FOREACH(t) {
run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL);
}
run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
break;
case S390_RESET_LOAD_NORMAL:
/*
* Subsystem reset needs to be done before we unshare memory
* and lose access to VIRTIO structures in guest memory.
*/
subsystem_reset();
s390_pv_prepare_reset(ms);
CPU_FOREACH(t) {
if (t == cs) {
continue;
}
run_on_cpu(t, s390_do_cpu_reset, RUN_ON_CPU_NULL);
}
run_on_cpu(cs, s390_do_cpu_initial_reset, RUN_ON_CPU_NULL);
run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
break;
case S390_RESET_PV: /* Subcode 10 */
subsystem_reset();
s390_crypto_reset();
CPU_FOREACH(t) {
if (t == cs) {
continue;
}
run_on_cpu(t, s390_do_cpu_full_reset, RUN_ON_CPU_NULL);
}
run_on_cpu(cs, s390_do_cpu_reset, RUN_ON_CPU_NULL);
if (s390_machine_protect(ms)) {
s390_pv_inject_reset_error(cs);
/*
* Continue after the diag308 so the guest knows something
* went wrong.
*/
s390_cpu_set_state(S390_CPU_STATE_OPERATING, cpu);
return;
}
run_on_cpu(cs, s390_do_cpu_load_normal, RUN_ON_CPU_NULL);
break;
default:
g_assert_not_reached();
}
CPU_FOREACH(t) {
run_on_cpu(t, s390_do_cpu_set_diag318, RUN_ON_CPU_HOST_ULONG(0));
}
s390_ipl_clear_reset_request();
}
static void s390_machine_device_plug(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
s390_cpu_plug(hotplug_dev, dev, errp);
}
}
static void s390_machine_device_unplug_request(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
error_setg(errp, "CPU hot unplug not supported on this machine");
return;
}
}
static CpuInstanceProperties s390_cpu_index_to_props(MachineState *ms,
unsigned cpu_index)
{
MachineClass *mc = MACHINE_GET_CLASS(ms);
const CPUArchIdList *possible_cpus = mc->possible_cpu_arch_ids(ms);
assert(cpu_index < possible_cpus->len);
return possible_cpus->cpus[cpu_index].props;
}
static const CPUArchIdList *s390_possible_cpu_arch_ids(MachineState *ms)
{
int i;
unsigned int max_cpus = ms->smp.max_cpus;
if (ms->possible_cpus) {
g_assert(ms->possible_cpus && ms->possible_cpus->len == max_cpus);
return ms->possible_cpus;
}
ms->possible_cpus = g_malloc0(sizeof(CPUArchIdList) +
sizeof(CPUArchId) * max_cpus);
ms->possible_cpus->len = max_cpus;
for (i = 0; i < ms->possible_cpus->len; i++) {
CpuInstanceProperties *props = &ms->possible_cpus->cpus[i].props;
ms->possible_cpus->cpus[i].type = ms->cpu_type;
ms->possible_cpus->cpus[i].vcpus_count = 1;
ms->possible_cpus->cpus[i].arch_id = i;
props->has_core_id = true;
props->core_id = i;
props->has_socket_id = true;
props->socket_id = s390_std_socket(i, &ms->smp);
props->has_book_id = true;
props->book_id = s390_std_book(i, &ms->smp);
props->has_drawer_id = true;
props->drawer_id = s390_std_drawer(i, &ms->smp);
}
return ms->possible_cpus;
}
static HotplugHandler *s390_get_hotplug_handler(MachineState *machine,
DeviceState *dev)
{
if (object_dynamic_cast(OBJECT(dev), TYPE_CPU)) {
return HOTPLUG_HANDLER(machine);
}
return NULL;
}
static void s390_nmi(NMIState *n, int cpu_index, Error **errp)
{
CPUState *cs = qemu_get_cpu(cpu_index);
s390_cpu_restart(S390_CPU(cs));
}
static ram_addr_t s390_fixup_ram_size(ram_addr_t sz)
{
/* same logic as in sclp.c */
int increment_size = 20;
ram_addr_t newsz;
while ((sz >> increment_size) > MAX_STORAGE_INCREMENTS) {
increment_size++;
}
newsz = sz >> increment_size << increment_size;
if (sz != newsz) {
qemu_printf("Ram size %" PRIu64 "MB was fixed up to %" PRIu64
"MB to match machine restrictions. Consider updating "
"the guest definition.\n", (uint64_t) (sz / MiB),
(uint64_t) (newsz / MiB));
}
return newsz;
}
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 S390CcwMachineClass *current_mc;
/*
* Get the class of the s390-ccw-virtio machine that is currently in use.
* Note: libvirt is using the "none" machine to probe for the features of the
* host CPU, so in case this is called with the "none" machine, the function
* returns the TYPE_S390_CCW_MACHINE base class. In this base class, all the
* various "*_allowed" variables are enabled, so that the *_allowed() wrappers
* below return the correct default value for the "none" machine.
*
* Attention! Do *not* add additional new wrappers for CPU features (e.g. like
* the ri_allowed() wrapper) via this mechanism anymore. CPU features should
* be handled via the CPU models, i.e. checking with cpu_model_allowed() during
* CPU initialization and s390_has_feat() later should be sufficient.
*/
static S390CcwMachineClass *get_machine_class(void)
{
if (unlikely(!current_mc)) {
/*
* No s390 ccw machine was instantiated, we are likely to
* be called for the 'none' machine. The properties will
* have their after-initialization values.
*/
current_mc = S390_CCW_MACHINE_CLASS(
object_class_by_name(TYPE_S390_CCW_MACHINE));
}
return current_mc;
}
bool ri_allowed(void)
{
return get_machine_class()->ri_allowed;
}
bool cpu_model_allowed(void)
{
return get_machine_class()->cpu_model_allowed;
}
bool hpage_1m_allowed(void)
{
return get_machine_class()->hpage_1m_allowed;
}
static void machine_get_loadparm(Object *obj, Visitor *v,
const char *name, void *opaque,
Error **errp)
{
S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
char *str = g_strndup((char *) ms->loadparm, sizeof(ms->loadparm));
visit_type_str(v, name, &str, errp);
g_free(str);
}
static void machine_set_loadparm(Object *obj, Visitor *v,
const char *name, void *opaque,
Error **errp)
{
S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
char *val;
int i;
if (!visit_type_str(v, name, &val, errp)) {
return;
}
for (i = 0; i < sizeof(ms->loadparm) && val[i]; i++) {
uint8_t c = qemu_toupper(val[i]); /* mimic HMC */
if (('A' <= c && c <= 'Z') || ('0' <= c && c <= '9') || (c == '.') ||
(c == ' ')) {
ms->loadparm[i] = c;
} else {
error_setg(errp, "LOADPARM: invalid character '%c' (ASCII 0x%02x)",
c, c);
return;
}
}
for (; i < sizeof(ms->loadparm); i++) {
ms->loadparm[i] = ' '; /* pad right with spaces */
}
}
static void ccw_machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);
NMIClass *nc = NMI_CLASS(oc);
HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(oc);
S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
s390mc->ri_allowed = true;
s390mc->cpu_model_allowed = true;
s390mc->hpage_1m_allowed = true;
s390mc->max_threads = 1;
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_parallel = 1;
mc->no_sdcard = 1;
mc->max_cpus = S390_MAX_CPUS;
mc->has_hotpluggable_cpus = true;
mc->smp_props.books_supported = true;
mc->smp_props.drawers_supported = true;
assert(!mc->get_hotplug_handler);
mc->get_hotplug_handler = s390_get_hotplug_handler;
mc->cpu_index_to_instance_props = s390_cpu_index_to_props;
mc->possible_cpu_arch_ids = s390_possible_cpu_arch_ids;
/* it is overridden with 'host' cpu *in kvm_arch_init* */
mc->default_cpu_type = S390_CPU_TYPE_NAME("qemu");
hc->plug = s390_machine_device_plug;
hc->unplug_request = s390_machine_device_unplug_request;
nc->nmi_monitor_handler = s390_nmi;
mc->default_ram_id = "s390.ram";
mc->default_nic = "virtio-net-ccw";
object_class_property_add_bool(oc, "aes-key-wrap",
machine_get_aes_key_wrap,
machine_set_aes_key_wrap);
object_class_property_set_description(oc, "aes-key-wrap",
"enable/disable AES key wrapping using the CPACF wrapping key");
object_class_property_add_bool(oc, "dea-key-wrap",
machine_get_dea_key_wrap,
machine_set_dea_key_wrap);
object_class_property_set_description(oc, "dea-key-wrap",
"enable/disable DEA key wrapping using the CPACF wrapping key");
object_class_property_add(oc, "loadparm", "loadparm",
machine_get_loadparm, machine_set_loadparm,
NULL, NULL);
object_class_property_set_description(oc, "loadparm",
"Up to 8 chars in set of [A-Za-z0-9. ] (lower case chars converted"
" to upper case) to pass to machine loader, boot manager,"
" and guest kernel");
}
static inline void s390_machine_initfn(Object *obj)
{
S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
ms->aes_key_wrap = true;
ms->dea_key_wrap = true;
}
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_size = sizeof(S390CcwMachineClass),
.class_init = ccw_machine_class_init,
.interfaces = (InterfaceInfo[]) {
{ TYPE_NMI },
{ TYPE_HOTPLUG_HANDLER},
{ }
},
};
#define DEFINE_CCW_MACHINE(suffix, verstr, latest) \
static void ccw_machine_##suffix##_class_init(ObjectClass *oc, \
void *data) \
{ \
MachineClass *mc = MACHINE_CLASS(oc); \
ccw_machine_##suffix##_class_options(mc); \
mc->desc = "Virtual s390x machine (version " verstr ")"; \
if (latest) { \
mc->alias = "s390-ccw-virtio"; \
mc->is_default = true; \
} \
} \
static void ccw_machine_##suffix##_instance_init(Object *obj) \
{ \
MachineState *machine = MACHINE(obj); \
current_mc = S390_CCW_MACHINE_CLASS(MACHINE_GET_CLASS(machine)); \
ccw_machine_##suffix##_instance_options(machine); \
} \
static const TypeInfo ccw_machine_##suffix##_info = { \
.name = MACHINE_TYPE_NAME("s390-ccw-virtio-" verstr), \
.parent = TYPE_S390_CCW_MACHINE, \
.class_init = ccw_machine_##suffix##_class_init, \
.instance_init = ccw_machine_##suffix##_instance_init, \
}; \
static void ccw_machine_register_##suffix(void) \
{ \
type_register_static(&ccw_machine_##suffix##_info); \
} \
type_init(ccw_machine_register_##suffix)
static void ccw_machine_9_1_instance_options(MachineState *machine)
{
}
static void ccw_machine_9_1_class_options(MachineClass *mc)
{
}
DEFINE_CCW_MACHINE(9_1, "9.1", true);
static void ccw_machine_9_0_instance_options(MachineState *machine)
{
ccw_machine_9_1_instance_options(machine);
}
static void ccw_machine_9_0_class_options(MachineClass *mc)
{
ccw_machine_9_1_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_9_0, hw_compat_9_0_len);
}
DEFINE_CCW_MACHINE(9_0, "9.0", false);
static void ccw_machine_8_2_instance_options(MachineState *machine)
{
ccw_machine_9_0_instance_options(machine);
}
static void ccw_machine_8_2_class_options(MachineClass *mc)
{
ccw_machine_9_0_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_8_2, hw_compat_8_2_len);
}
DEFINE_CCW_MACHINE(8_2, "8.2", false);
static void ccw_machine_8_1_instance_options(MachineState *machine)
{
ccw_machine_8_2_instance_options(machine);
}
static void ccw_machine_8_1_class_options(MachineClass *mc)
{
ccw_machine_8_2_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_8_1, hw_compat_8_1_len);
mc->smp_props.drawers_supported = false;
mc->smp_props.books_supported = false;
}
DEFINE_CCW_MACHINE(8_1, "8.1", false);
static void ccw_machine_8_0_instance_options(MachineState *machine)
{
ccw_machine_8_1_instance_options(machine);
}
static void ccw_machine_8_0_class_options(MachineClass *mc)
{
ccw_machine_8_1_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_8_0, hw_compat_8_0_len);
}
DEFINE_CCW_MACHINE(8_0, "8.0", false);
static void ccw_machine_7_2_instance_options(MachineState *machine)
{
ccw_machine_8_0_instance_options(machine);
}
static void ccw_machine_7_2_class_options(MachineClass *mc)
{
ccw_machine_8_0_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_7_2, hw_compat_7_2_len);
}
DEFINE_CCW_MACHINE(7_2, "7.2", false);
static void ccw_machine_7_1_instance_options(MachineState *machine)
{
static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_1 };
ccw_machine_7_2_instance_options(machine);
s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAIE);
s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat);
}
static void ccw_machine_7_1_class_options(MachineClass *mc)
{
S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
static GlobalProperty compat[] = {
{ TYPE_S390_PCI_DEVICE, "interpret", "off", },
{ TYPE_S390_PCI_DEVICE, "forwarding-assist", "off", },
};
ccw_machine_7_2_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_7_1, hw_compat_7_1_len);
compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
s390mc->max_threads = S390_MAX_CPUS;
}
DEFINE_CCW_MACHINE(7_1, "7.1", false);
static void ccw_machine_7_0_instance_options(MachineState *machine)
{
static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V7_0 };
ccw_machine_7_1_instance_options(machine);
s390_set_qemu_cpu_model(0x8561, 15, 1, qemu_cpu_feat);
}
static void ccw_machine_7_0_class_options(MachineClass *mc)
{
ccw_machine_7_1_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_7_0, hw_compat_7_0_len);
}
DEFINE_CCW_MACHINE(7_0, "7.0", false);
static void ccw_machine_6_2_instance_options(MachineState *machine)
{
static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_2 };
ccw_machine_7_0_instance_options(machine);
s390_set_qemu_cpu_model(0x3906, 14, 2, qemu_cpu_feat);
}
static void ccw_machine_6_2_class_options(MachineClass *mc)
{
ccw_machine_7_0_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_6_2, hw_compat_6_2_len);
}
DEFINE_CCW_MACHINE(6_2, "6.2", false);
static void ccw_machine_6_1_instance_options(MachineState *machine)
{
ccw_machine_6_2_instance_options(machine);
s390_cpudef_featoff_greater(16, 1, S390_FEAT_NNPA);
s390_cpudef_featoff_greater(16, 1, S390_FEAT_VECTOR_PACKED_DECIMAL_ENH2);
s390_cpudef_featoff_greater(16, 1, S390_FEAT_BEAR_ENH);
s390_cpudef_featoff_greater(16, 1, S390_FEAT_RDP);
s390_cpudef_featoff_greater(16, 1, S390_FEAT_PAI);
}
static void ccw_machine_6_1_class_options(MachineClass *mc)
{
ccw_machine_6_2_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_6_1, hw_compat_6_1_len);
mc->smp_props.prefer_sockets = true;
}
DEFINE_CCW_MACHINE(6_1, "6.1", false);
static void ccw_machine_6_0_instance_options(MachineState *machine)
{
static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V6_0 };
ccw_machine_6_1_instance_options(machine);
s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat);
}
static void ccw_machine_6_0_class_options(MachineClass *mc)
{
ccw_machine_6_1_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_6_0, hw_compat_6_0_len);
}
DEFINE_CCW_MACHINE(6_0, "6.0", false);
static void ccw_machine_5_2_instance_options(MachineState *machine)
{
ccw_machine_6_0_instance_options(machine);
}
static void ccw_machine_5_2_class_options(MachineClass *mc)
{
ccw_machine_6_0_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_5_2, hw_compat_5_2_len);
}
DEFINE_CCW_MACHINE(5_2, "5.2", false);
static void ccw_machine_5_1_instance_options(MachineState *machine)
{
ccw_machine_5_2_instance_options(machine);
}
static void ccw_machine_5_1_class_options(MachineClass *mc)
{
ccw_machine_5_2_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_5_1, hw_compat_5_1_len);
}
DEFINE_CCW_MACHINE(5_1, "5.1", false);
static void ccw_machine_5_0_instance_options(MachineState *machine)
{
ccw_machine_5_1_instance_options(machine);
}
static void ccw_machine_5_0_class_options(MachineClass *mc)
{
ccw_machine_5_1_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_5_0, hw_compat_5_0_len);
}
DEFINE_CCW_MACHINE(5_0, "5.0", false);
static void ccw_machine_4_2_instance_options(MachineState *machine)
{
ccw_machine_5_0_instance_options(machine);
}
static void ccw_machine_4_2_class_options(MachineClass *mc)
{
ccw_machine_5_0_class_options(mc);
mc->fixup_ram_size = s390_fixup_ram_size;
compat_props_add(mc->compat_props, hw_compat_4_2, hw_compat_4_2_len);
}
DEFINE_CCW_MACHINE(4_2, "4.2", false);
static void ccw_machine_4_1_instance_options(MachineState *machine)
{
static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_1 };
ccw_machine_4_2_instance_options(machine);
s390_set_qemu_cpu_model(0x2964, 13, 2, qemu_cpu_feat);
}
static void ccw_machine_4_1_class_options(MachineClass *mc)
{
ccw_machine_4_2_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_4_1, hw_compat_4_1_len);
}
DEFINE_CCW_MACHINE(4_1, "4.1", false);
static void ccw_machine_4_0_instance_options(MachineState *machine)
{
static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V4_0 };
ccw_machine_4_1_instance_options(machine);
s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat);
}
static void ccw_machine_4_0_class_options(MachineClass *mc)
{
ccw_machine_4_1_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_4_0, hw_compat_4_0_len);
}
DEFINE_CCW_MACHINE(4_0, "4.0", false);
static void ccw_machine_3_1_instance_options(MachineState *machine)
{
static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V3_1 };
ccw_machine_4_0_instance_options(machine);
s390_cpudef_featoff_greater(14, 1, S390_FEAT_MULTIPLE_EPOCH);
s390_cpudef_group_featoff_greater(14, 1, S390_FEAT_GROUP_MULTIPLE_EPOCH_PTFF);
s390_set_qemu_cpu_model(0x2827, 12, 2, qemu_cpu_feat);
}
static void ccw_machine_3_1_class_options(MachineClass *mc)
{
ccw_machine_4_0_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_3_1, hw_compat_3_1_len);
}
DEFINE_CCW_MACHINE(3_1, "3.1", false);
static void ccw_machine_3_0_instance_options(MachineState *machine)
{
ccw_machine_3_1_instance_options(machine);
}
static void ccw_machine_3_0_class_options(MachineClass *mc)
{
S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
s390mc->hpage_1m_allowed = false;
ccw_machine_3_1_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_3_0, hw_compat_3_0_len);
}
DEFINE_CCW_MACHINE(3_0, "3.0", false);
static void ccw_machine_2_12_instance_options(MachineState *machine)
{
ccw_machine_3_0_instance_options(machine);
s390_cpudef_featoff_greater(11, 1, S390_FEAT_PPA15);
s390_cpudef_featoff_greater(11, 1, S390_FEAT_BPB);
}
static void ccw_machine_2_12_class_options(MachineClass *mc)
{
ccw_machine_3_0_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_2_12, hw_compat_2_12_len);
}
DEFINE_CCW_MACHINE(2_12, "2.12", false);
#ifdef CONFIG_S390X_LEGACY_CPUS
static void ccw_machine_2_11_instance_options(MachineState *machine)
{
static const S390FeatInit qemu_cpu_feat = { S390_FEAT_LIST_QEMU_V2_11 };
ccw_machine_2_12_instance_options(machine);
/* before 2.12 we emulated the very first z900 */
s390_set_qemu_cpu_model(0x2064, 7, 1, qemu_cpu_feat);
}
static void ccw_machine_2_11_class_options(MachineClass *mc)
{
static GlobalProperty compat[] = {
{ TYPE_SCLP_EVENT_FACILITY, "allow_all_mask_sizes", "off", },
};
ccw_machine_2_12_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_2_11, hw_compat_2_11_len);
compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
}
DEFINE_CCW_MACHINE(2_11, "2.11", false);
static void ccw_machine_2_10_instance_options(MachineState *machine)
{
ccw_machine_2_11_instance_options(machine);
}
static void ccw_machine_2_10_class_options(MachineClass *mc)
{
ccw_machine_2_11_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_2_10, hw_compat_2_10_len);
}
DEFINE_CCW_MACHINE(2_10, "2.10", false);
static void ccw_machine_2_9_instance_options(MachineState *machine)
{
ccw_machine_2_10_instance_options(machine);
s390_cpudef_featoff_greater(12, 1, S390_FEAT_ESOP);
s390_cpudef_featoff_greater(12, 1, S390_FEAT_SIDE_EFFECT_ACCESS_ESOP2);
s390_cpudef_featoff_greater(12, 1, S390_FEAT_ZPCI);
s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_INT_SUPPRESSION);
s390_cpudef_featoff_greater(12, 1, S390_FEAT_ADAPTER_EVENT_NOTIFICATION);
}
static void ccw_machine_2_9_class_options(MachineClass *mc)
{
static GlobalProperty compat[] = {
{ TYPE_S390_STATTRIB, "migration-enabled", "off", },
{ TYPE_S390_FLIC_COMMON, "migration-enabled", "off", },
};
ccw_machine_2_10_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_2_9, hw_compat_2_9_len);
compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
css_migration_enabled = false;
}
DEFINE_CCW_MACHINE(2_9, "2.9", false);
static void ccw_machine_2_8_instance_options(MachineState *machine)
{
ccw_machine_2_9_instance_options(machine);
}
static void ccw_machine_2_8_class_options(MachineClass *mc)
{
static GlobalProperty compat[] = {
{ TYPE_S390_FLIC_COMMON, "adapter_routes_max_batch", "64", },
};
ccw_machine_2_9_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_2_8, hw_compat_2_8_len);
compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
}
DEFINE_CCW_MACHINE(2_8, "2.8", false);
static void ccw_machine_2_7_instance_options(MachineState *machine)
{
ccw_machine_2_8_instance_options(machine);
}
static void ccw_machine_2_7_class_options(MachineClass *mc)
{
S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
s390mc->cpu_model_allowed = false;
ccw_machine_2_8_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_2_7, hw_compat_2_7_len);
}
DEFINE_CCW_MACHINE(2_7, "2.7", false);
static void ccw_machine_2_6_instance_options(MachineState *machine)
{
ccw_machine_2_7_instance_options(machine);
}
static void ccw_machine_2_6_class_options(MachineClass *mc)
{
S390CcwMachineClass *s390mc = S390_CCW_MACHINE_CLASS(mc);
static GlobalProperty compat[] = {
{ TYPE_S390_IPL, "iplbext_migration", "off", },
{ TYPE_VIRTUAL_CSS_BRIDGE, "css_dev_path", "off", },
};
s390mc->ri_allowed = false;
ccw_machine_2_7_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_2_6, hw_compat_2_6_len);
compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
}
DEFINE_CCW_MACHINE(2_6, "2.6", false);
static void ccw_machine_2_5_instance_options(MachineState *machine)
{
ccw_machine_2_6_instance_options(machine);
}
static void ccw_machine_2_5_class_options(MachineClass *mc)
{
ccw_machine_2_6_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_2_5, hw_compat_2_5_len);
}
DEFINE_CCW_MACHINE(2_5, "2.5", false);
static void ccw_machine_2_4_instance_options(MachineState *machine)
{
ccw_machine_2_5_instance_options(machine);
}
static void ccw_machine_2_4_class_options(MachineClass *mc)
{
static GlobalProperty compat[] = {
{ TYPE_S390_SKEYS, "migration-enabled", "off", },
{ "virtio-blk-ccw", "max_revision", "0", },
{ "virtio-balloon-ccw", "max_revision", "0", },
{ "virtio-serial-ccw", "max_revision", "0", },
{ "virtio-9p-ccw", "max_revision", "0", },
{ "virtio-rng-ccw", "max_revision", "0", },
{ "virtio-net-ccw", "max_revision", "0", },
{ "virtio-scsi-ccw", "max_revision", "0", },
{ "vhost-scsi-ccw", "max_revision", "0", },
};
ccw_machine_2_5_class_options(mc);
compat_props_add(mc->compat_props, hw_compat_2_4, hw_compat_2_4_len);
compat_props_add(mc->compat_props, compat, G_N_ELEMENTS(compat));
}
DEFINE_CCW_MACHINE(2_4, "2.4", false);
#endif
static void ccw_machine_register_types(void)
{
type_register_static(&ccw_machine_info);
}
type_init(ccw_machine_register_types)
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