Add API to find pvpanic device and get its io port.
Will be used to fill in guest info structure.
Reviewed-by: Gerd Hoffmann <kra...@redhat.com>
Tested-by: Gerd Hoffmann <kra...@redhat.com>
Signed-off-by: Michael S. Tsirkin <m...@redhat.com>
---
include/hw/i386/pc.h | 1 +
hw/misc/pvpanic.c | 13 ++++++++++++-
2 files changed, 13 insertions(+), 1 deletion(-)
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 95857be..e3ee0a8 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -235,6 +235,7 @@ void pc_system_firmware_init(MemoryRegion *rom_memory,
/* pvpanic.c */
void pvpanic_init(ISABus *bus);
+uint16_t pvpanic_port(void);
/* e820 types */
#define E820_RAM 1
diff --git a/hw/misc/pvpanic.c b/hw/misc/pvpanic.c
index b64e3bb..226e298 100644
--- a/hw/misc/pvpanic.c
+++ b/hw/misc/pvpanic.c
@@ -117,8 +117,19 @@ void pvpanic_init(ISABus *bus)
isa_create_simple(bus, TYPE_ISA_PVPANIC_DEVICE);
}
+#define PVPANIC_IOPORT_PROP "ioport"
+
+uint16_t pvpanic_port(void)
+{
+ Object *o = object_resolve_path_type("", TYPE_ISA_PVPANIC_DEVICE, NULL);
+ if (!o) {
+ return 0;
+ }
+ return object_property_get_int(o, PVPANIC_IOPORT_PROP, NULL);
+}
+
static Property pvpanic_isa_properties[] = {
- DEFINE_PROP_UINT16("ioport", PVPanicState, ioport, 0x505),
+ DEFINE_PROP_UINT16(PVPANIC_IOPORT_PROP, PVPanicState, ioport, 0x505),
DEFINE_PROP_END_OF_LIST(),
};
--
MST
