diff mbox series

[02/12] hw/misc/pvpanic: Add MMIO interface

Message ID 20230614224038.86148-3-graf@amazon.com (mailing list archive)
State New, archived
Headers show
Series Introduce new vmapple machine type | expand

Commit Message

Alexander Graf June 14, 2023, 10:40 p.m. UTC
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>
---
 hw/misc/Kconfig           |  4 +++
 hw/misc/meson.build       |  1 +
 hw/misc/pvpanic-mmio.c    | 66 +++++++++++++++++++++++++++++++++++++++
 include/hw/misc/pvpanic.h |  1 +
 4 files changed, 72 insertions(+)
 create mode 100644 hw/misc/pvpanic-mmio.c

Comments

Philippe Mathieu-Daudé June 16, 2023, 10:14 a.m. UTC | #1
On 15/6/23 00:40, Alexander Graf wrote:
> 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>
> ---
>   hw/misc/Kconfig           |  4 +++
>   hw/misc/meson.build       |  1 +
>   hw/misc/pvpanic-mmio.c    | 66 +++++++++++++++++++++++++++++++++++++++
>   include/hw/misc/pvpanic.h |  1 +
>   4 files changed, 72 insertions(+)
>   create mode 100644 hw/misc/pvpanic-mmio.c


> diff --git a/hw/misc/pvpanic-mmio.c b/hw/misc/pvpanic-mmio.c
> new file mode 100644
> index 0000000000..aebe7227e6
> --- /dev/null
> +++ b/hw/misc/pvpanic-mmio.c
> @@ -0,0 +1,66 @@
> +/*
> + * QEMU simulated pvpanic device (MMIO frontend)
> + *
> + * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
> + *
> + * This work is licensed under the terms of the GNU GPL, version 2 or later.
> + * See the COPYING file in the top-level directory.

Preferably SPDX tag.

> + */
> +
> +#include "qemu/osdep.h"
> +#include "qemu/module.h"

Unused header.

> +#include "sysemu/runstate.h"
> +
> +#include "hw/nvram/fw_cfg.h"

Ditto.

> +#include "hw/qdev-properties.h"
> +#include "hw/misc/pvpanic.h"
> +#include "qom/object.h"

Ditto.

> +#include "hw/isa/isa.h"

Ditto.

> +#include "standard-headers/linux/pvpanic.h"
> +
> +OBJECT_DECLARE_SIMPLE_TYPE(PVPanicMMIOState, PVPANIC_MMIO_DEVICE)
> +
> +#define PVPANIC_MMIO_SIZE 0x2
> +
> +struct PVPanicMMIOState {
> +    SysBusDevice parent_obj;

Mising "sysbus.h"

> +
> +    PVPanicState pvpanic;
> +};

This worked for me:

-- >8 --
--- a/hw/misc/pvpanic-mmio.c
+++ b/hw/misc/pvpanic-mmio.c
@@ -3,19 +3,13 @@
   *
   * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights 
Reserved.
   *
- * This work is licensed under the terms of the GNU GPL, version 2 or 
later.
- * See the COPYING file in the top-level directory.
+ * SPDX-License-Identifier: GPL-2.0-or-later
   */

  #include "qemu/osdep.h"
-#include "qemu/module.h"
-#include "sysemu/runstate.h"
-
-#include "hw/nvram/fw_cfg.h"
  #include "hw/qdev-properties.h"
  #include "hw/misc/pvpanic.h"
-#include "qom/object.h"
-#include "hw/isa/isa.h"
+#include "hw/sysbus.h"
  #include "standard-headers/linux/pvpanic.h"
---

Fixing the includes:

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Tested-by: Philippe Mathieu-Daudé <philmd@linaro.org>
diff mbox series

Patch

diff --git a/hw/misc/Kconfig b/hw/misc/Kconfig
index e4c2149175..21913ef191 100644
--- a/hw/misc/Kconfig
+++ b/hw/misc/Kconfig
@@ -125,6 +125,10 @@  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 78ca857c9d..b935e74d51 100644
--- a/hw/misc/meson.build
+++ b/hw/misc/meson.build
@@ -115,6 +115,7 @@  softmmu_ss.add(when: 'CONFIG_ARMSSE_MHU', if_true: files('armsse-mhu.c'))
 
 softmmu_ss.add(when: 'CONFIG_PVPANIC_ISA', if_true: files('pvpanic-isa.c'))
 softmmu_ss.add(when: 'CONFIG_PVPANIC_PCI', if_true: files('pvpanic-pci.c'))
+softmmu_ss.add(when: 'CONFIG_PVPANIC_MMIO', if_true: files('pvpanic-mmio.c'))
 softmmu_ss.add(when: 'CONFIG_AUX', if_true: files('auxbus.c'))
 softmmu_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 0000000000..aebe7227e6
--- /dev/null
+++ b/hw/misc/pvpanic-mmio.c
@@ -0,0 +1,66 @@ 
+/*
+ * QEMU simulated pvpanic device (MMIO frontend)
+ *
+ * Copyright © 2023 Amazon.com, Inc. or its affiliates. All Rights Reserved.
+ *
+ * This work is licensed under the terms of the GNU GPL, version 2 or later.
+ * See the COPYING file in the top-level directory.
+ */
+
+#include "qemu/osdep.h"
+#include "qemu/module.h"
+#include "sysemu/runstate.h"
+
+#include "hw/nvram/fw_cfg.h"
+#include "hw/qdev-properties.h"
+#include "hw/misc/pvpanic.h"
+#include "qom/object.h"
+#include "hw/isa/isa.h"
+#include "standard-headers/linux/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 fab94165d0..f9e7c1ea17 100644
--- a/include/hw/misc/pvpanic.h
+++ b/include/hw/misc/pvpanic.h
@@ -20,6 +20,7 @@ 
 
 #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"