[Qemu-devel] [PATCH v3 12/14] pvpanic: add API to access io port

["Michael S. Tsirkin" <mst@redhat.com>]

Add API to find pvpanic device and get its io port.
Will be used to fill in guest info structure.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
---
 hw/misc/pvpanic.c    | 11 +++++++++++
 include/hw/i386/pc.h |  1 +
 2 files changed, 12 insertions(+)

diff --git a/hw/misc/pvpanic.c b/hw/misc/pvpanic.c
index 7bb49a5..bb403e9 100644
--- a/hw/misc/pvpanic.c
+++ b/hw/misc/pvpanic.c
@@ -122,6 +122,17 @@ void pvpanic_init(ISABus *bus)
     pvpanic_fw_cfg(dev, fw_cfg);
 }
 
+uint16_t pvpanic_port(void)
+{
+    Object *o = object_resolve_path_type("", TYPE_ISA_PVPANIC_DEVICE, NULL);
+    PVPanicState *s;
+    if (!o) {
+        return 0;
+    }
+    s = ISA_PVPANIC_DEVICE(o);
+    return s->ioport;
+}
+
 static Property pvpanic_isa_properties[] = {
     DEFINE_PROP_UINT16("ioport", PVPanicState, ioport, 0x505),
     DEFINE_PROP_END_OF_LIST(),
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index 76af5cd..e718a59 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -228,6 +228,7 @@ 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
-- 
MST