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Message-Id: <1f08d3fe2b08289b3cae10dc91a96b793272801b.1387298827.git.minovotn@redhat.com>
In-Reply-To: <3ed0fb61a3dc912ef036d7ef450bed192090709e.1387298827.git.minovotn@redhat.com>
References: <3ed0fb61a3dc912ef036d7ef450bed192090709e.1387298827.git.minovotn@redhat.com>
From: "Michael S. Tsirkin" <mst@redhat.com>
Date: Tue, 17 Dec 2013 15:18:54 +0100
Subject: [PATCH 43/56] pvpanic: add API to access io port

RH-Author: Michael S. Tsirkin <mst@redhat.com>
Message-id: <1387293161-4085-44-git-send-email-mst@redhat.com>
Patchwork-id: 56349
O-Subject: [PATCH qemu-kvm RHEL7.0 v2 43/57] pvpanic: add API to access io port
Bugzilla: 1034876
RH-Acked-by: Igor Mammedov <imammedo@redhat.com>
RH-Acked-by: Marcel Apfelbaum <marcel.a@redhat.com>
RH-Acked-by: Laszlo Ersek <lersek@redhat.com>

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

Reviewed-by: Gerd Hoffmann <kraxel@redhat.com>
Tested-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Igor Mammedov <imammedo@redhat.com>
Tested-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
(cherry picked from commit 309cd62d6b2628b4f0e2850b42011077f40956c7)

Conflicts:
	include/hw/i386/pc.h
---
 include/hw/i386/pc.h |  1 +
 hw/misc/pvpanic.c    | 14 +++++++++++++-
 2 files changed, 14 insertions(+), 1 deletion(-)

Signed-off-by: Michal Novotny <minovotn@redhat.com>
---
 hw/misc/pvpanic.c    | 14 +++++++++++++-
 include/hw/i386/pc.h |  1 +
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/hw/misc/pvpanic.c b/hw/misc/pvpanic.c
index 1838bc7..1377fde 100644
--- a/hw/misc/pvpanic.c
+++ b/hw/misc/pvpanic.c
@@ -19,6 +19,7 @@
 #include "qemu/log.h"
 
 #include "hw/nvram/fw_cfg.h"
+#include "hw/i386/pc.h"
 
 /* The bit of supported pv event */
 #define PVPANIC_F_PANICKED      0
@@ -107,8 +108,19 @@ static int pvpanic_isa_initfn(ISADevice *dev)
     return 0;
 }
 
+#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(),
 };
 
diff --git a/include/hw/i386/pc.h b/include/hw/i386/pc.h
index d78e45b..8793715 100644
--- a/include/hw/i386/pc.h
+++ b/include/hw/i386/pc.h
@@ -231,6 +231,7 @@ 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
-- 
1.7.11.7