From: Alexander Graf <g...@amazon.com>
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 <g...@amazon.com>
Reviewed-by: Philippe Mathieu-Daudé <phi...@linaro.org>
Tested-by: Philippe Mathieu-Daudé <phi...@linaro.org>
Signed-off-by: Phil Dennis-Jordan <p...@philjordan.eu>
---
v3:
* Rebased on upstream, updated a header path
hw/misc/Kconfig | 4 +++
hw/misc/meson.build | 1 +
hw/misc/pvpanic-mmio.c | 61 +++++++++++++++++++++++++++++++++++++++
include/hw/misc/pvpanic.h | 1 +
4 files changed, 67 insertions(+)
create mode 100644 hw/misc/pvpanic-mmio.c
diff --git a/hw/misc/Kconfig b/hw/misc/Kconfig
index 1e08785b832..891329971a9 100644
--- a/hw/misc/Kconfig
+++ b/hw/misc/Kconfig
@@ -143,6 +143,10 @@ config PVPANIC_ISA
depends on ISA_BUS
select PVPANIC_COMMON
+config PVPANIC_MMIO
+ bool
+ select PVPANIC_COMMON
+
config AUX
bool
select I2C
diff --git a/hw/misc/meson.build b/hw/misc/meson.build
index 2ca8717be28..19021700192 100644
--- a/hw/misc/meson.build
+++ b/hw/misc/meson.build
@@ -127,6 +127,7 @@ 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',
diff --git a/hw/misc/pvpanic-mmio.c b/hw/misc/pvpanic-mmio.c
new file mode 100644
index 00000000000..56738efee53
--- /dev/null
+++ b/hw/misc/pvpanic-mmio.c
@@ -0,0 +1,61 @@
+/*
+ * 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 Property pvpanic_mmio_properties[] = {
+ DEFINE_PROP_UINT8("events", PVPanicMMIOState, pvpanic.events,
+ PVPANIC_PANICKED | PVPANIC_CRASH_LOADED),
+ DEFINE_PROP_END_OF_LIST(),
+};
+
+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)
diff --git a/include/hw/misc/pvpanic.h b/include/hw/misc/pvpanic.h
index 9a71a5ad0d7..049a94c1125 100644
--- a/include/hw/misc/pvpanic.h
+++ b/include/hw/misc/pvpanic.h
@@ -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"
--
2.39.3 (Apple Git-145)
