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s390x: get rid of s390-virtio.c 

It is a leftover from the days where we had still the !ccw virtio
machine. As this one is long gone, let's move everything to
s390-virtio-ccw.c.

Suggested-by: Cornelia Huck <cohuck@redhat.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Signed-off-by: David Hildenbrand <david@redhat.com>
Message-Id: <20170913132417.24384-4-david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
This commit is contained in:
David Hildenbrand 2017-09-13 15:23:58 +02:00 committed by Cornelia Huck
parent 6fda014e1a
commit 6286b41986
4 changed files with 158 additions and 220 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
hw/s390x/Makefile.objs
View File

@ -1,4 +1,3 @@
obj-y += s390-virtio.o
obj-y += s390-virtio-hcall.o
obj-y += sclp.o
obj-y += event-facility.o

159
hw/s390x/s390-virtio-ccw.c
View File

@ -2,6 +2,7 @@
* virtio ccw machine
*
* Copyright 2012 IBM Corp.
* Copyright (c) 2009 Alexander Graf <agraf@suse.de>
* Author(s): Cornelia Huck <cornelia.huck@de.ibm.com>
*
* This work is licensed under the terms of the GNU GPL, version 2 or (at
@ -31,6 +32,46 @@
#include "hw/s390x/css-bridge.h"
#include "migration/register.h"
#include "cpu_models.h"
#include "qapi/qmp/qerror.h"
#include "hw/nmi.h"
static S390CPU **cpu_states;
S390CPU *s390_cpu_addr2state(uint16_t cpu_addr)
{
if (cpu_addr >= max_cpus) {
return NULL;
}
/* Fast lookup via CPU ID */
return cpu_states[cpu_addr];
}
static void s390_init_cpus(MachineState *machine)
{
int i;
gchar *name;
if (machine->cpu_model == NULL) {
machine->cpu_model = s390_default_cpu_model_name();
}
cpu_states = g_new0(S390CPU *, max_cpus);
for (i = 0; i < max_cpus; i++) {
name = g_strdup_printf("cpu[%i]", i);
object_property_add_link(OBJECT(machine), name, TYPE_S390_CPU,
(Object **) &cpu_states[i],
object_property_allow_set_link,
OBJ_PROP_LINK_UNREF_ON_RELEASE,
&error_abort);
g_free(name);
}
for (i = 0; i < smp_cpus; i++) {
s390x_new_cpu(machine->cpu_model, i, &error_fatal);
}
}
static const char *const reset_dev_types[] = {
TYPE_VIRTUAL_CSS_BRIDGE,
@ -94,7 +135,7 @@ static void virtio_ccw_register_hcalls(void)
virtio_ccw_hcall_early_printk);
}
void s390_memory_init(ram_addr_t mem_size)
static void s390_memory_init(ram_addr_t mem_size)
{
MemoryRegion *sysmem = get_system_memory();
MemoryRegion *ram = g_new(MemoryRegion, 1);
@ -109,11 +150,105 @@ void s390_memory_init(ram_addr_t mem_size)
s390_stattrib_init();
}
#define S390_TOD_CLOCK_VALUE_MISSING 0x00
#define S390_TOD_CLOCK_VALUE_PRESENT 0x01
static void gtod_save(QEMUFile *f, void *opaque)
{
uint64_t tod_low;
uint8_t tod_high;
int r;
r = s390_get_clock(&tod_high, &tod_low);
if (r) {
warn_report("Unable to get guest clock for migration: %s",
strerror(-r));
error_printf("Guest clock will not be migrated "
"which could cause the guest to hang.");
qemu_put_byte(f, S390_TOD_CLOCK_VALUE_MISSING);
return;
}
qemu_put_byte(f, S390_TOD_CLOCK_VALUE_PRESENT);
qemu_put_byte(f, tod_high);
qemu_put_be64(f, tod_low);
}
static 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) {
warn_report("Guest clock was not migrated. This could "
"cause the guest to hang.");
return 0;
}
tod_high = qemu_get_byte(f);
tod_low = qemu_get_be64(f);
r = s390_set_clock(&tod_high, &tod_low);
if (r) {
warn_report("Unable to set guest clock for migration: %s",
strerror(-r));
error_printf("Guest clock will not be restored "
"which could cause the guest to hang.");
}
return 0;
}
static SaveVMHandlers savevm_gtod = {
.save_state = gtod_save,
.load_state = gtod_load,
};
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);
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_string(dev, "netboot_fw", netboot_fw);
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);
}
static 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");
}
qemu_check_nic_model(nd, "virtio");
dev = qdev_create(bus, name);
qdev_set_nic_properties(dev, nd);
qdev_init_nofail(dev);
}
}
static void ccw_init(MachineState *machine)
{
int ret;
@ -177,6 +312,19 @@ static void s390_cpu_plug(HotplugHandler *hotplug_dev,
g_free(name);
}
static void s390_machine_reset(void)
{
S390CPU *ipl_cpu = S390_CPU(qemu_get_cpu(0));
s390_cmma_reset();
qemu_devices_reset();
s390_crypto_reset();
/* 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);
}
static void s390_machine_device_plug(HotplugHandler *hotplug_dev,
DeviceState *dev, Error **errp)
{
@ -201,6 +349,15 @@ static void s390_hot_add_cpu(const int64_t id, Error **errp)
s390x_new_cpu(machine->cpu_model, id, errp);
}
static 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_setg(errp, QERR_UNSUPPORTED);
}
}
static void ccw_machine_class_init(ObjectClass *oc, void *data)
{
MachineClass *mc = MACHINE_CLASS(oc);

203
hw/s390x/s390-virtio.c
View File

@ -1,203 +0,0 @@
/*
* 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 "qemu/osdep.h"
#include "qapi/error.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 "hw/loader.h"
#include "hw/virtio/virtio.h"
#include "exec/address-spaces.h"
#include "sysemu/qtest.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 MAX_BLK_DEVS 10
#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 >= max_cpus) {
return NULL;
}
/* 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 *netboot_fw,
bool enforce_bios)
{
Object *new = object_new(TYPE_S390_IPL);
DeviceState *dev = DEVICE(new);
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_string(dev, "netboot_fw", netboot_fw);
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(MachineState *machine)
{
int i;
gchar *name;
if (machine->cpu_model == NULL) {
machine->cpu_model = s390_default_cpu_model_name();
}
cpu_states = g_new0(S390CPU *, max_cpus);
for (i = 0; i < max_cpus; i++) {
name = g_strdup_printf("cpu[%i]", i);
object_property_add_link(OBJECT(machine), name, TYPE_S390_CPU,
(Object **) &cpu_states[i],
object_property_allow_set_link,
OBJ_PROP_LINK_UNREF_ON_RELEASE,
&error_abort);
g_free(name);
}
for (i = 0; i < smp_cpus; i++) {
s390x_new_cpu(machine->cpu_model, i, &error_fatal);
}
}
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");
}
qemu_check_nic_model(nd, "virtio");
dev = qdev_create(bus, name);
qdev_set_nic_properties(dev, nd);
qdev_init_nofail(dev);
}
}
void gtod_save(QEMUFile *f, void *opaque)
{
uint64_t tod_low;
uint8_t tod_high;
int r;
r = s390_get_clock(&tod_high, &tod_low);
if (r) {
warn_report("Unable to get guest clock for migration: %s",
strerror(-r));
error_printf("Guest clock will not be migrated "
"which could cause the guest to hang.");
qemu_put_byte(f, S390_TOD_CLOCK_VALUE_MISSING);
return;
}
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) {
warn_report("Guest clock was not migrated. This could "
"cause the guest to hang.");
return 0;
}
tod_high = qemu_get_byte(f);
tod_low = qemu_get_be64(f);
r = s390_set_clock(&tod_high, &tod_low);
if (r) {
warn_report("Unable to set guest clock for migration: %s",
strerror(-r));
error_printf("Guest clock will not be restored "
"which could cause the guest to hang.");
}
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_setg(errp, QERR_UNSUPPORTED);
}
}
void s390_machine_reset(void)
{
S390CPU *ipl_cpu = S390_CPU(qemu_get_cpu(0));
s390_cmma_reset();
qemu_devices_reset();
s390_crypto_reset();
/* 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);
}

15
hw/s390x/s390-virtio.h
View File

@ -12,24 +12,9 @@
#ifndef HW_S390_VIRTIO_H
#define HW_S390_VIRTIO_H
#include "hw/nmi.h"
#include "standard-headers/asm-s390/kvm_virtio.h"
#include "standard-headers/asm-s390/virtio-ccw.h"
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(MachineState *machine);
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);
void s390_create_virtio_net(BusState *bus, const char *name);
void s390_nmi(NMIState *n, int cpu_index, Error **errp);
void s390_machine_reset(void);
void s390_memory_init(ram_addr_t mem_size);
void gtod_save(QEMUFile *f, void *opaque);
int gtod_load(QEMUFile *f, void *opaque, int version_id);
#endif