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hw/misc/pvpanic: Add MMIO interface

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In addition to the ISA and PCI variants of pvpanic, let's add an MMIO
platform device that we can use in embedded arm environments.

Signed-off-by: Alexander Graf <graf@amazon.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Phil Dennis-Jordan <phil@philjordan.eu>
Reviewed-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Tested-by: Akihiko Odaki <akihiko.odaki@daynix.com>
Message-ID: <20241223221645.29911-8-phil@philjordan.eu>
Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
This commit is contained in:
Alexander Graf 2023-06-14 22:40:28 +00:00 • committed by Philippe Mathieu-Daudé
parent 996fa948f9
commit a89607c4d0
4 changed files with 66 additions and 0 deletions
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4
hw/misc/Kconfig
View file

@ -148,6 +148,10 @@ config PVPANIC_ISA
depends on ISA_BUS
select PVPANIC_COMMON
config PVPANIC_MMIO
bool
select PVPANIC_COMMON
config AUX
bool
select I2C

1
hw/misc/meson.build
View file

@ -126,6 +126,7 @@ system_ss.add(when: 'CONFIG_ARMSSE_MHU', if_true: files('armsse-mhu.c'))
system_ss.add(when: 'CONFIG_PVPANIC_ISA', if_true: files('pvpanic-isa.c'))
system_ss.add(when: 'CONFIG_PVPANIC_PCI', if_true: files('pvpanic-pci.c'))
system_ss.add(when: 'CONFIG_PVPANIC_MMIO', if_true: files('pvpanic-mmio.c'))
system_ss.add(when: 'CONFIG_AUX', if_true: files('auxbus.c'))
system_ss.add(when: 'CONFIG_ASPEED_SOC', if_true: files(
'aspeed_hace.c',

60
hw/misc/pvpanic-mmio.c Normal file
View file

@ -0,0 +1,60 @@
/*
* QEMU simulated pvpanic device (MMIO frontend)
*
* Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
*
* SPDX-License-Identifier: GPL-2.0-or-later
*/
#include "qemu/osdep.h"
#include "hw/qdev-properties.h"
#include "hw/misc/pvpanic.h"
#include "hw/sysbus.h"
#include "standard-headers/misc/pvpanic.h"
OBJECT_DECLARE_SIMPLE_TYPE(PVPanicMMIOState, PVPANIC_MMIO_DEVICE)
#define PVPANIC_MMIO_SIZE 0x2
struct PVPanicMMIOState {
SysBusDevice parent_obj;
PVPanicState pvpanic;
};
static void pvpanic_mmio_initfn(Object *obj)
{
PVPanicMMIOState *s = PVPANIC_MMIO_DEVICE(obj);
pvpanic_setup_io(&s->pvpanic, DEVICE(s), PVPANIC_MMIO_SIZE);
sysbus_init_mmio(SYS_BUS_DEVICE(obj), &s->pvpanic.mr);
}
static const Property pvpanic_mmio_properties[] = {
DEFINE_PROP_UINT8("events", PVPanicMMIOState, pvpanic.events,
PVPANIC_PANICKED | PVPANIC_CRASH_LOADED),
};
static void pvpanic_mmio_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
device_class_set_props(dc, pvpanic_mmio_properties);
set_bit(DEVICE_CATEGORY_MISC, dc->categories);
}
static const TypeInfo pvpanic_mmio_info = {
.name = TYPE_PVPANIC_MMIO_DEVICE,
.parent = TYPE_SYS_BUS_DEVICE,
.instance_size = sizeof(PVPanicMMIOState),
.instance_init = pvpanic_mmio_initfn,
.class_init = pvpanic_mmio_class_init,
};
static void pvpanic_register_types(void)
{
type_register_static(&pvpanic_mmio_info);
}
type_init(pvpanic_register_types)

1
include/hw/misc/pvpanic.h
View file

@ -26,6 +26,7 @@
#define TYPE_PVPANIC_ISA_DEVICE "pvpanic"
#define TYPE_PVPANIC_PCI_DEVICE "pvpanic-pci"
#define TYPE_PVPANIC_MMIO_DEVICE "pvpanic-mmio"
#define PVPANIC_IOPORT_PROP "ioport"