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-rw-r--r--hw/s390x/Makefile.objs4
-rw-r--r--hw/s390x/ap-bridge.c78
-rw-r--r--hw/s390x/ap-device.c38
-rw-r--r--hw/s390x/css.c38
-rw-r--r--hw/s390x/ipl.h5
-rw-r--r--hw/s390x/s390-pci-bus.c34
-rw-r--r--hw/s390x/s390-virtio-ccw.c14
7 files changed, 179 insertions, 32 deletions
diff --git a/hw/s390x/Makefile.objs b/hw/s390x/Makefile.objs
index 5dbc00ce9b..ca68806e44 100644
--- a/hw/s390x/Makefile.objs
+++ b/hw/s390x/Makefile.objs
@@ -26,8 +26,10 @@ obj-$(call lnot,$(CONFIG_PCI)) += s390-pci-stub.o
obj-y += s390-skeys.o
obj-y += s390-stattrib.o
obj-y += tod.o
+obj-y += tod-qemu.o
obj-$(CONFIG_KVM) += tod-kvm.o
-obj-$(CONFIG_TCG) += tod-qemu.o
obj-$(CONFIG_KVM) += s390-skeys-kvm.o
obj-$(CONFIG_KVM) += s390-stattrib-kvm.o
obj-y += s390-ccw.o
+obj-y += ap-device.o
+obj-y += ap-bridge.o
diff --git a/hw/s390x/ap-bridge.c b/hw/s390x/ap-bridge.c
new file mode 100644
index 0000000000..3795d30dd7
--- /dev/null
+++ b/hw/s390x/ap-bridge.c
@@ -0,0 +1,78 @@
+/*
+ * ap bridge
+ *
+ * Copyright 2018 IBM Corp.
+ *
+ * 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 "hw/sysbus.h"
+#include "qemu/bitops.h"
+#include "hw/s390x/ap-bridge.h"
+#include "cpu.h"
+
+static char *ap_bus_get_dev_path(DeviceState *dev)
+{
+ /* at most one */
+ return g_strdup_printf("/1");
+}
+
+static void ap_bus_class_init(ObjectClass *oc, void *data)
+{
+ BusClass *k = BUS_CLASS(oc);
+
+ k->get_dev_path = ap_bus_get_dev_path;
+ /* More than one ap device does not make sense */
+ k->max_dev = 1;
+}
+
+static const TypeInfo ap_bus_info = {
+ .name = TYPE_AP_BUS,
+ .parent = TYPE_BUS,
+ .instance_size = 0,
+ .class_init = ap_bus_class_init,
+};
+
+void s390_init_ap(void)
+{
+ DeviceState *dev;
+
+ /* If no AP instructions then no need for AP bridge */
+ if (!s390_has_feat(S390_FEAT_AP)) {
+ return;
+ }
+
+ /* Create bridge device */
+ dev = qdev_create(NULL, TYPE_AP_BRIDGE);
+ object_property_add_child(qdev_get_machine(), TYPE_AP_BRIDGE,
+ OBJECT(dev), NULL);
+ qdev_init_nofail(dev);
+
+ /* Create bus on bridge device */
+ qbus_create(TYPE_AP_BUS, dev, TYPE_AP_BUS);
+ }
+
+static void ap_bridge_class_init(ObjectClass *oc, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(oc);
+
+ set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
+}
+
+static const TypeInfo ap_bridge_info = {
+ .name = TYPE_AP_BRIDGE,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = 0,
+ .class_init = ap_bridge_class_init,
+};
+
+static void ap_register(void)
+{
+ type_register_static(&ap_bridge_info);
+ type_register_static(&ap_bus_info);
+}
+
+type_init(ap_register)
diff --git a/hw/s390x/ap-device.c b/hw/s390x/ap-device.c
new file mode 100644
index 0000000000..f5ac8db968
--- /dev/null
+++ b/hw/s390x/ap-device.c
@@ -0,0 +1,38 @@
+/*
+ * Adjunct Processor (AP) matrix device
+ *
+ * Copyright 2018 IBM Corp.
+ *
+ * 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 "qemu/module.h"
+#include "qapi/error.h"
+#include "hw/qdev.h"
+#include "hw/s390x/ap-device.h"
+
+static void ap_class_init(ObjectClass *klass, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(klass);
+
+ dc->desc = "AP device class";
+ dc->hotpluggable = false;
+}
+
+static const TypeInfo ap_device_info = {
+ .name = AP_DEVICE_TYPE,
+ .parent = TYPE_DEVICE,
+ .instance_size = sizeof(APDevice),
+ .class_size = sizeof(DeviceClass),
+ .class_init = ap_class_init,
+ .abstract = true,
+};
+
+static void ap_device_register(void)
+{
+ type_register_static(&ap_device_info);
+}
+
+type_init(ap_device_register)
diff --git a/hw/s390x/css.c b/hw/s390x/css.c
index 5a9fe45ce8..04ec5cc970 100644
--- a/hw/s390x/css.c
+++ b/hw/s390x/css.c
@@ -750,20 +750,25 @@ static void sch_handle_halt_func(SubchDev *sch)
}
-static void copy_sense_id_to_guest(SenseId *dest, SenseId *src)
+/*
+ * As the SenseId struct cannot be packed (would cause unaligned accesses), we
+ * have to copy the individual fields to an unstructured area using the correct
+ * layout (see SA22-7204-01 "Common I/O-Device Commands").
+ */
+static void copy_sense_id_to_guest(uint8_t *dest, SenseId *src)
{
int i;
- dest->reserved = src->reserved;
- dest->cu_type = cpu_to_be16(src->cu_type);
- dest->cu_model = src->cu_model;
- dest->dev_type = cpu_to_be16(src->dev_type);
- dest->dev_model = src->dev_model;
- dest->unused = src->unused;
- for (i = 0; i < ARRAY_SIZE(dest->ciw); i++) {
- dest->ciw[i].type = src->ciw[i].type;
- dest->ciw[i].command = src->ciw[i].command;
- dest->ciw[i].count = cpu_to_be16(src->ciw[i].count);
+ dest[0] = src->reserved;
+ stw_be_p(dest + 1, src->cu_type);
+ dest[3] = src->cu_model;
+ stw_be_p(dest + 4, src->dev_type);
+ dest[6] = src->dev_model;
+ dest[7] = src->unused;
+ for (i = 0; i < ARRAY_SIZE(src->ciw); i++) {
+ dest[8 + i * 4] = src->ciw[i].type;
+ dest[9 + i * 4] = src->ciw[i].command;
+ stw_be_p(dest + 10 + i * 4, src->ciw[i].count);
}
}
@@ -1044,9 +1049,10 @@ static int css_interpret_ccw(SubchDev *sch, hwaddr ccw_addr,
break;
case CCW_CMD_SENSE_ID:
{
- SenseId sense_id;
+ /* According to SA22-7204-01, Sense-ID can store up to 256 bytes */
+ uint8_t sense_id[256];
- copy_sense_id_to_guest(&sense_id, &sch->id);
+ copy_sense_id_to_guest(sense_id, &sch->id);
/* Sense ID information is device specific. */
if (check_len) {
if (ccw.count != sizeof(sense_id)) {
@@ -1060,11 +1066,11 @@ static int css_interpret_ccw(SubchDev *sch, hwaddr ccw_addr,
* have enough place to store at least bytes 0-3.
*/
if (len >= 4) {
- sense_id.reserved = 0xff;
+ sense_id[0] = 0xff;
} else {
- sense_id.reserved = 0;
+ sense_id[0] = 0;
}
- ccw_dstream_write_buf(&sch->cds, &sense_id, len);
+ ccw_dstream_write_buf(&sch->cds, sense_id, len);
sch->curr_status.scsw.count = ccw_dstream_residual_count(&sch->cds);
ret = 0;
break;
diff --git a/hw/s390x/ipl.h b/hw/s390x/ipl.h
index 4e87b89418..b3a07a12d8 100644
--- a/hw/s390x/ipl.h
+++ b/hw/s390x/ipl.h
@@ -132,15 +132,15 @@ typedef struct QemuIplParameters QemuIplParameters;
struct S390IPLState {
/*< private >*/
DeviceState parent_obj;
+ IplParameterBlock iplb;
+ QemuIplParameters qipl;
uint64_t start_addr;
uint64_t compat_start_addr;
uint64_t bios_start_addr;
uint64_t compat_bios_start_addr;
bool enforce_bios;
- IplParameterBlock iplb;
bool iplb_valid;
bool netboot;
- QemuIplParameters qipl;
/* reset related properties don't have to be migrated or reset */
enum s390_reset reset_type;
int reset_cpu_index;
@@ -157,6 +157,7 @@ struct S390IPLState {
bool iplbext_migration;
};
typedef struct S390IPLState S390IPLState;
+QEMU_BUILD_BUG_MSG(offsetof(S390IPLState, iplb) & 3, "alignment of iplb wrong");
#define S390_IPL_TYPE_FCP 0x00
#define S390_IPL_TYPE_CCW 0x02
diff --git a/hw/s390x/s390-pci-bus.c b/hw/s390x/s390-pci-bus.c
index e3e0ebb7f6..e42e1b80d6 100644
--- a/hw/s390x/s390-pci-bus.c
+++ b/hw/s390x/s390-pci-bus.c
@@ -692,27 +692,35 @@ static void s390_pci_iommu_free(S390pciState *s, PCIBus *bus, int32_t devfn)
object_unref(OBJECT(iommu));
}
-static int s390_pcihost_init(SysBusDevice *dev)
+static void s390_pcihost_realize(DeviceState *dev, Error **errp)
{
PCIBus *b;
BusState *bus;
PCIHostState *phb = PCI_HOST_BRIDGE(dev);
S390pciState *s = S390_PCI_HOST_BRIDGE(dev);
+ Error *local_err = NULL;
DPRINTF("host_init\n");
- b = pci_register_root_bus(DEVICE(dev), NULL,
- s390_pci_set_irq, s390_pci_map_irq, NULL,
- get_system_memory(), get_system_io(), 0, 64,
- TYPE_PCI_BUS);
+ b = pci_register_root_bus(dev, NULL, s390_pci_set_irq, s390_pci_map_irq,
+ NULL, get_system_memory(), get_system_io(), 0,
+ 64, TYPE_PCI_BUS);
pci_setup_iommu(b, s390_pci_dma_iommu, s);
bus = BUS(b);
- qbus_set_hotplug_handler(bus, DEVICE(dev), NULL);
+ qbus_set_hotplug_handler(bus, dev, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
phb->bus = b;
- s->bus = S390_PCI_BUS(qbus_create(TYPE_S390_PCI_BUS, DEVICE(s), NULL));
- qbus_set_hotplug_handler(BUS(s->bus), DEVICE(s), NULL);
+ s->bus = S390_PCI_BUS(qbus_create(TYPE_S390_PCI_BUS, dev, NULL));
+ qbus_set_hotplug_handler(BUS(s->bus), dev, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ return;
+ }
s->iommu_table = g_hash_table_new_full(g_int64_hash, g_int64_equal,
NULL, g_free);
@@ -722,9 +730,10 @@ static int s390_pcihost_init(SysBusDevice *dev)
QTAILQ_INIT(&s->zpci_devs);
css_register_io_adapters(CSS_IO_ADAPTER_PCI, true, false,
- S390_ADAPTER_SUPPRESSIBLE, &error_abort);
-
- return 0;
+ S390_ADAPTER_SUPPRESSIBLE, &local_err);
+ if (local_err) {
+ error_propagate(errp, local_err);
+ }
}
static int s390_pci_msix_init(S390PCIBusDevice *pbdev)
@@ -1018,12 +1027,11 @@ static void s390_pcihost_reset(DeviceState *dev)
static void s390_pcihost_class_init(ObjectClass *klass, void *data)
{
- SysBusDeviceClass *k = SYS_BUS_DEVICE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass);
dc->reset = s390_pcihost_reset;
- k->init = s390_pcihost_init;
+ dc->realize = s390_pcihost_realize;
hc->plug = s390_pcihost_hot_plug;
hc->unplug = s390_pcihost_hot_unplug;
msi_nonbroken = true;
diff --git a/hw/s390x/s390-virtio-ccw.c b/hw/s390x/s390-virtio-ccw.c
index f0f7fdcadd..a0615a8b35 100644
--- a/hw/s390x/s390-virtio-ccw.c
+++ b/hw/s390x/s390-virtio-ccw.c
@@ -32,6 +32,7 @@
#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"
@@ -263,6 +264,9 @@ static void ccw_init(MachineState *machine)
/* 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,
@@ -456,6 +460,7 @@ static void ccw_machine_class_init(ObjectClass *oc, void *data)
s390mc->ri_allowed = true;
s390mc->cpu_model_allowed = true;
s390mc->css_migration_enabled = true;
+ s390mc->hpage_1m_allowed = true;
mc->init = ccw_init;
mc->reset = s390_machine_reset;
mc->hot_add_cpu = s390_hot_add_cpu;
@@ -535,6 +540,12 @@ bool cpu_model_allowed(void)
return get_machine_class()->cpu_model_allowed;
}
+bool hpage_1m_allowed(void)
+{
+ /* for "none" machine this results in true */
+ return get_machine_class()->hpage_1m_allowed;
+}
+
static char *machine_get_loadparm(Object *obj, Error **errp)
{
S390CcwMachineState *ms = S390_CCW_MACHINE(obj);
@@ -747,6 +758,9 @@ static void ccw_machine_3_0_instance_options(MachineState *machine)
static void ccw_machine_3_0_class_options(MachineClass *mc)
{
+ S390CcwMachineClass *s390mc = S390_MACHINE_CLASS(mc);
+
+ s390mc->hpage_1m_allowed = false;
ccw_machine_3_1_class_options(mc);
SET_MACHINE_COMPAT(mc, CCW_COMPAT_3_0);
}
generated by cgit v1.2.3-55-g7522 (git 2.39.0) at 2025-04-21 14:51:27 +0200