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mac_newworld: wire up programmer switch to NMI handler 

The programmer switch is wired up via an external GPIO pin and can be used
to aid debugging Mac guests.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Mark Cave-Ayland 2018-06-12 17:43:59 +01:00 committed by David Gibson
parent 7c4166a971
commit 8f55ac1304
1 changed files with 13 additions and 0 deletions
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13
hw/misc/macio/gpio.c
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@ -28,6 +28,7 @@
#include "hw/ppc/mac.h"
#include "hw/misc/macio/macio.h"
#include "hw/misc/macio/gpio.h"
#include "hw/nmi.h"
#include "qemu/log.h"
#include "trace.h"
@ -193,13 +194,21 @@ static void macio_gpio_reset(DeviceState *dev)
macio_set_gpio(s, 1, true);
}
static void macio_gpio_nmi(NMIState *n, int cpu_index, Error **errp)
{
macio_set_gpio(MACIO_GPIO(n), 9, true);
macio_set_gpio(MACIO_GPIO(n), 9, false);
}
static void macio_gpio_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
NMIClass *nc = NMI_CLASS(oc);
dc->realize = macio_gpio_realize;
dc->reset = macio_gpio_reset;
dc->vmsd = &vmstate_macio_gpio;
nc->nmi_monitor_handler = macio_gpio_nmi;
}
static const TypeInfo macio_gpio_init_info = {
@ -208,6 +217,10 @@ static const TypeInfo macio_gpio_init_info = {
.instance_size = sizeof(MacIOGPIOState),
.instance_init = macio_gpio_init,
.class_init = macio_gpio_class_init,
.interfaces = (InterfaceInfo[]) {
{ TYPE_NMI },
{ }
},
};
static void macio_gpio_register_types(void)