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qemu/hw/misc/macio/macio.c
Mark Cave-Ayland 6bfa035ec3 macio: set user_creatable to false in macio_class_init() 
Commit 348b8d1a76 "macio: don't reference serial_hd() directly within the device"
removed the setting of user_creatable to false on the basis that the restriction
was due to the use of serial_hd() in macio_instance_init().

Unfortunately this isn't the full story since the PIC object property links
must still be set before the device is realized. Whilst it is possible to update
the macio device and Mac machines to resolve this, the fix is too invasive at
this point in the release cycle.

For now simply set user_creatable back to false in macio_class_init() to
prevent QEMU from segfaulting in anticipation of the proper fix arriving in
QEMU 6.0.

Reported-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20201110103111.18395-1-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2020-11-12 09:26:20 +00:00

507 lines
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/*
* PowerMac MacIO device emulation
*
* Copyright (c) 2005-2007 Fabrice Bellard
* Copyright (c) 2007 Jocelyn Mayer
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include "qemu/osdep.h"
#include "qapi/error.h"
#include "qemu/module.h"
#include "hw/ppc/mac.h"
#include "hw/misc/macio/cuda.h"
#include "hw/pci/pci.h"
#include "hw/ppc/mac_dbdma.h"
#include "hw/qdev-properties.h"
#include "migration/vmstate.h"
#include "hw/char/escc.h"
#include "hw/misc/macio/macio.h"
#include "hw/intc/heathrow_pic.h"
#include "sysemu/sysemu.h"
#include "trace.h"
/* Note: this code is strongly inspirated from the corresponding code
* in PearPC */
/*
* The mac-io has two interfaces to the ESCC. One is called "escc-legacy",
* while the other one is the normal, current ESCC interface.
*
* The magic below creates memory aliases to spawn the escc-legacy device
* purely by rerouting the respective registers to our escc region. This
* works because the only difference between the two memory regions is the
* register layout, not their semantics.
*
* Reference: ftp://ftp.software.ibm.com/rs6000/technology/spec/chrp/inwork/CHRP_IORef_1.0.pdf
*/
static void macio_escc_legacy_setup(MacIOState *s)
{
ESCCState *escc = ESCC(&s->escc);
SysBusDevice *sbd = SYS_BUS_DEVICE(escc);
MemoryRegion *escc_legacy = g_new(MemoryRegion, 1);
MemoryRegion *bar = &s->bar;
int i;
static const int maps[] = {
0x00, 0x00, /* Command B */
0x02, 0x20, /* Command A */
0x04, 0x10, /* Data B */
0x06, 0x30, /* Data A */
0x08, 0x40, /* Enhancement B */
0x0A, 0x50, /* Enhancement A */
0x80, 0x80, /* Recovery count */
0x90, 0x90, /* Start A */
0xa0, 0xa0, /* Start B */
0xb0, 0xb0, /* Detect AB */
};
memory_region_init(escc_legacy, OBJECT(s), "escc-legacy", 256);
for (i = 0; i < ARRAY_SIZE(maps); i += 2) {
MemoryRegion *port = g_new(MemoryRegion, 1);
memory_region_init_alias(port, OBJECT(s), "escc-legacy-port",
sysbus_mmio_get_region(sbd, 0),
maps[i + 1], 0x2);
memory_region_add_subregion(escc_legacy, maps[i], port);
}
memory_region_add_subregion(bar, 0x12000, escc_legacy);
}
static void macio_bar_setup(MacIOState *s)
{
ESCCState *escc = ESCC(&s->escc);
SysBusDevice *sbd = SYS_BUS_DEVICE(escc);
MemoryRegion *bar = &s->bar;
memory_region_add_subregion(bar, 0x13000, sysbus_mmio_get_region(sbd, 0));
macio_escc_legacy_setup(s);
}
static void macio_common_realize(PCIDevice *d, Error **errp)
{
MacIOState *s = MACIO(d);
SysBusDevice *sysbus_dev;
if (!qdev_realize(DEVICE(&s->dbdma), BUS(&s->macio_bus), errp)) {
return;
}
sysbus_dev = SYS_BUS_DEVICE(&s->dbdma);
memory_region_add_subregion(&s->bar, 0x08000,
sysbus_mmio_get_region(sysbus_dev, 0));
qdev_prop_set_uint32(DEVICE(&s->escc), "disabled", 0);
qdev_prop_set_uint32(DEVICE(&s->escc), "frequency", ESCC_CLOCK);
qdev_prop_set_uint32(DEVICE(&s->escc), "it_shift", 4);
qdev_prop_set_uint32(DEVICE(&s->escc), "chnBtype", escc_serial);
qdev_prop_set_uint32(DEVICE(&s->escc), "chnAtype", escc_serial);
if (!qdev_realize(DEVICE(&s->escc), BUS(&s->macio_bus), errp)) {
return;
}
macio_bar_setup(s);
pci_register_bar(d, 0, PCI_BASE_ADDRESS_SPACE_MEMORY, &s->bar);
}
static void macio_realize_ide(MacIOState *s, MACIOIDEState *ide,
qemu_irq irq0, qemu_irq irq1, int dmaid,
Error **errp)
{
SysBusDevice *sysbus_dev;
sysbus_dev = SYS_BUS_DEVICE(ide);
sysbus_connect_irq(sysbus_dev, 0, irq0);
sysbus_connect_irq(sysbus_dev, 1, irq1);
qdev_prop_set_uint32(DEVICE(ide), "channel", dmaid);
object_property_set_link(OBJECT(ide), "dbdma", OBJECT(&s->dbdma),
&error_abort);
macio_ide_register_dma(ide);
qdev_realize(DEVICE(ide), BUS(&s->macio_bus), errp);
}
static void macio_oldworld_realize(PCIDevice *d, Error **errp)
{
MacIOState *s = MACIO(d);
OldWorldMacIOState *os = OLDWORLD_MACIO(d);
DeviceState *pic_dev = DEVICE(os->pic);
Error *err = NULL;
SysBusDevice *sysbus_dev;
macio_common_realize(d, &err);
if (err) {
error_propagate(errp, err);
return;
}
qdev_prop_set_uint64(DEVICE(&s->cuda), "timebase-frequency",
s->frequency);
if (!qdev_realize(DEVICE(&s->cuda), BUS(&s->macio_bus), errp)) {
return;
}
sysbus_dev = SYS_BUS_DEVICE(&s->cuda);
memory_region_add_subregion(&s->bar, 0x16000,
sysbus_mmio_get_region(sysbus_dev, 0));
sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev,
OLDWORLD_CUDA_IRQ));
sysbus_dev = SYS_BUS_DEVICE(&s->escc);
sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev,
OLDWORLD_ESCCB_IRQ));
sysbus_connect_irq(sysbus_dev, 1, qdev_get_gpio_in(pic_dev,
OLDWORLD_ESCCA_IRQ));
if (!qdev_realize(DEVICE(&os->nvram), BUS(&s->macio_bus), errp)) {
return;
}
sysbus_dev = SYS_BUS_DEVICE(&os->nvram);
memory_region_add_subregion(&s->bar, 0x60000,
sysbus_mmio_get_region(sysbus_dev, 0));
pmac_format_nvram_partition(&os->nvram, os->nvram.size);
/* Heathrow PIC */
sysbus_dev = SYS_BUS_DEVICE(os->pic);
memory_region_add_subregion(&s->bar, 0x0,
sysbus_mmio_get_region(sysbus_dev, 0));
/* IDE buses */
macio_realize_ide(s, &os->ide[0],
qdev_get_gpio_in(pic_dev, OLDWORLD_IDE0_IRQ),
qdev_get_gpio_in(pic_dev, OLDWORLD_IDE0_DMA_IRQ),
0x16, &err);
if (err) {
error_propagate(errp, err);
return;
}
macio_realize_ide(s, &os->ide[1],
qdev_get_gpio_in(pic_dev, OLDWORLD_IDE1_IRQ),
qdev_get_gpio_in(pic_dev, OLDWORLD_IDE1_DMA_IRQ),
0x1a, &err);
if (err) {
error_propagate(errp, err);
return;
}
}
static void macio_init_ide(MacIOState *s, MACIOIDEState *ide, int index)
{
gchar *name = g_strdup_printf("ide[%i]", index);
uint32_t addr = 0x1f000 + ((index + 1) * 0x1000);
object_initialize_child(OBJECT(s), name, ide, TYPE_MACIO_IDE);
qdev_prop_set_uint32(DEVICE(ide), "addr", addr);
memory_region_add_subregion(&s->bar, addr, &ide->mem);
g_free(name);
}
static void macio_oldworld_init(Object *obj)
{
MacIOState *s = MACIO(obj);
OldWorldMacIOState *os = OLDWORLD_MACIO(obj);
DeviceState *dev;
int i;
object_property_add_link(obj, "pic", TYPE_HEATHROW,
(Object **) &os->pic,
qdev_prop_allow_set_link_before_realize,
0);
object_initialize_child(OBJECT(s), "cuda", &s->cuda, TYPE_CUDA);
object_initialize_child(OBJECT(s), "nvram", &os->nvram, TYPE_MACIO_NVRAM);
dev = DEVICE(&os->nvram);
qdev_prop_set_uint32(dev, "size", 0x2000);
qdev_prop_set_uint32(dev, "it_shift", 4);
for (i = 0; i < 2; i++) {
macio_init_ide(s, &os->ide[i], i);
}
}
static void timer_write(void *opaque, hwaddr addr, uint64_t value,
unsigned size)
{
trace_macio_timer_write(addr, size, value);
}
static uint64_t timer_read(void *opaque, hwaddr addr, unsigned size)
{
uint32_t value = 0;
uint64_t systime = qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL);
uint64_t kltime;
kltime = muldiv64(systime, 4194300, NANOSECONDS_PER_SECOND * 4);
kltime = muldiv64(kltime, 18432000, 1048575);
switch (addr) {
case 0x38:
value = kltime;
break;
case 0x3c:
value = kltime >> 32;
break;
}
trace_macio_timer_read(addr, size, value);
return value;
}
static const MemoryRegionOps timer_ops = {
.read = timer_read,
.write = timer_write,
.endianness = DEVICE_LITTLE_ENDIAN,
};
static void macio_newworld_realize(PCIDevice *d, Error **errp)
{
MacIOState *s = MACIO(d);
NewWorldMacIOState *ns = NEWWORLD_MACIO(d);
DeviceState *pic_dev = DEVICE(ns->pic);
Error *err = NULL;
SysBusDevice *sysbus_dev;
MemoryRegion *timer_memory = NULL;
macio_common_realize(d, &err);
if (err) {
error_propagate(errp, err);
return;
}
sysbus_dev = SYS_BUS_DEVICE(&s->escc);
sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev,
NEWWORLD_ESCCB_IRQ));
sysbus_connect_irq(sysbus_dev, 1, qdev_get_gpio_in(pic_dev,
NEWWORLD_ESCCA_IRQ));
/* OpenPIC */
sysbus_dev = SYS_BUS_DEVICE(ns->pic);
memory_region_add_subregion(&s->bar, 0x40000,
sysbus_mmio_get_region(sysbus_dev, 0));
/* IDE buses */
macio_realize_ide(s, &ns->ide[0],
qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_IRQ),
qdev_get_gpio_in(pic_dev, NEWWORLD_IDE0_DMA_IRQ),
0x16, &err);
if (err) {
error_propagate(errp, err);
return;
}
macio_realize_ide(s, &ns->ide[1],
qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_IRQ),
qdev_get_gpio_in(pic_dev, NEWWORLD_IDE1_DMA_IRQ),
0x1a, &err);
if (err) {
error_propagate(errp, err);
return;
}
/* Timer */
timer_memory = g_new(MemoryRegion, 1);
memory_region_init_io(timer_memory, OBJECT(s), &timer_ops, NULL, "timer",
0x1000);
memory_region_add_subregion(&s->bar, 0x15000, timer_memory);
if (ns->has_pmu) {
/* GPIOs */
sysbus_dev = SYS_BUS_DEVICE(&ns->gpio);
object_property_set_link(OBJECT(&ns->gpio), "pic", OBJECT(pic_dev),
&error_abort);
memory_region_add_subregion(&s->bar, 0x50,
sysbus_mmio_get_region(sysbus_dev, 0));
if (!qdev_realize(DEVICE(&ns->gpio), BUS(&s->macio_bus), errp)) {
return;
}
/* PMU */
object_initialize_child(OBJECT(s), "pmu", &s->pmu, TYPE_VIA_PMU);
object_property_set_link(OBJECT(&s->pmu), "gpio", OBJECT(sysbus_dev),
&error_abort);
qdev_prop_set_bit(DEVICE(&s->pmu), "has-adb", ns->has_adb);
if (!qdev_realize(DEVICE(&s->pmu), BUS(&s->macio_bus), errp)) {
return;
}
sysbus_dev = SYS_BUS_DEVICE(&s->pmu);
sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev,
NEWWORLD_PMU_IRQ));
memory_region_add_subregion(&s->bar, 0x16000,
sysbus_mmio_get_region(sysbus_dev, 0));
} else {
object_unparent(OBJECT(&ns->gpio));
/* CUDA */
object_initialize_child(OBJECT(s), "cuda", &s->cuda, TYPE_CUDA);
qdev_prop_set_uint64(DEVICE(&s->cuda), "timebase-frequency",
s->frequency);
if (!qdev_realize(DEVICE(&s->cuda), BUS(&s->macio_bus), errp)) {
return;
}
sysbus_dev = SYS_BUS_DEVICE(&s->cuda);
sysbus_connect_irq(sysbus_dev, 0, qdev_get_gpio_in(pic_dev,
NEWWORLD_CUDA_IRQ));
memory_region_add_subregion(&s->bar, 0x16000,
sysbus_mmio_get_region(sysbus_dev, 0));
}
}
static void macio_newworld_init(Object *obj)
{
MacIOState *s = MACIO(obj);
NewWorldMacIOState *ns = NEWWORLD_MACIO(obj);
int i;
object_property_add_link(obj, "pic", TYPE_OPENPIC,
(Object **) &ns->pic,
qdev_prop_allow_set_link_before_realize,
0);
object_initialize_child(OBJECT(s), "gpio", &ns->gpio, TYPE_MACIO_GPIO);
for (i = 0; i < 2; i++) {
macio_init_ide(s, &ns->ide[i], i);
}
}
static void macio_instance_init(Object *obj)
{
MacIOState *s = MACIO(obj);
memory_region_init(&s->bar, obj, "macio", 0x80000);
qbus_create_inplace(&s->macio_bus, sizeof(s->macio_bus), TYPE_MACIO_BUS,
DEVICE(obj), "macio.0");
object_initialize_child(OBJECT(s), "dbdma", &s->dbdma, TYPE_MAC_DBDMA);
object_initialize_child(OBJECT(s), "escc", &s->escc, TYPE_ESCC);
}
static const VMStateDescription vmstate_macio_oldworld = {
.name = "macio-oldworld",
.version_id = 0,
.minimum_version_id = 0,
.fields = (VMStateField[]) {
VMSTATE_PCI_DEVICE(parent_obj.parent, OldWorldMacIOState),
VMSTATE_END_OF_LIST()
}
};
static void macio_oldworld_class_init(ObjectClass *oc, void *data)
{
PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc);
DeviceClass *dc = DEVICE_CLASS(oc);
pdc->realize = macio_oldworld_realize;
pdc->device_id = PCI_DEVICE_ID_APPLE_343S1201;
dc->vmsd = &vmstate_macio_oldworld;
}
static const VMStateDescription vmstate_macio_newworld = {
.name = "macio-newworld",
.version_id = 0,
.minimum_version_id = 0,
.fields = (VMStateField[]) {
VMSTATE_PCI_DEVICE(parent_obj.parent, NewWorldMacIOState),
VMSTATE_END_OF_LIST()
}
};
static Property macio_newworld_properties[] = {
DEFINE_PROP_BOOL("has-pmu", NewWorldMacIOState, has_pmu, false),
DEFINE_PROP_BOOL("has-adb", NewWorldMacIOState, has_adb, false),
DEFINE_PROP_END_OF_LIST()
};
static void macio_newworld_class_init(ObjectClass *oc, void *data)
{
PCIDeviceClass *pdc = PCI_DEVICE_CLASS(oc);
DeviceClass *dc = DEVICE_CLASS(oc);
pdc->realize = macio_newworld_realize;
pdc->device_id = PCI_DEVICE_ID_APPLE_UNI_N_KEYL;
dc->vmsd = &vmstate_macio_newworld;
device_class_set_props(dc, macio_newworld_properties);
}
static Property macio_properties[] = {
DEFINE_PROP_UINT64("frequency", MacIOState, frequency, 0),
DEFINE_PROP_END_OF_LIST()
};
static void macio_class_init(ObjectClass *klass, void *data)
{
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
k->vendor_id = PCI_VENDOR_ID_APPLE;
k->class_id = PCI_CLASS_OTHERS << 8;
device_class_set_props(dc, macio_properties);
set_bit(DEVICE_CATEGORY_BRIDGE, dc->categories);
/* Reason: requires PIC property links to be set in macio_*_realize() */
dc->user_creatable = false;
}
static const TypeInfo macio_bus_info = {
.name = TYPE_MACIO_BUS,
.parent = TYPE_SYSTEM_BUS,
.instance_size = sizeof(MacIOBusState),
};
static const TypeInfo macio_oldworld_type_info = {
.name = TYPE_OLDWORLD_MACIO,
.parent = TYPE_MACIO,
.instance_size = sizeof(OldWorldMacIOState),
.instance_init = macio_oldworld_init,
.class_init = macio_oldworld_class_init,
};
static const TypeInfo macio_newworld_type_info = {
.name = TYPE_NEWWORLD_MACIO,
.parent = TYPE_MACIO,
.instance_size = sizeof(NewWorldMacIOState),
.instance_init = macio_newworld_init,
.class_init = macio_newworld_class_init,
};
static const TypeInfo macio_type_info = {
.name = TYPE_MACIO,
.parent = TYPE_PCI_DEVICE,
.instance_size = sizeof(MacIOState),
.instance_init = macio_instance_init,
.abstract = true,
.class_init = macio_class_init,
.interfaces = (InterfaceInfo[]) {
{ INTERFACE_CONVENTIONAL_PCI_DEVICE },
{ },
},
};
static void macio_register_types(void)
{
type_register_static(&macio_bus_info);
type_register_static(&macio_type_info);
type_register_static(&macio_oldworld_type_info);
type_register_static(&macio_newworld_type_info);
}
type_init(macio_register_types)
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