From 9a4c0e220d8a4f82b5665d0ee95ef94d8e1509d5 Mon Sep 17 00:00:00 2001
From: Marcel Apfelbaum <marcel@redhat.com>
Date: Wed, 20 Jul 2016 18:28:21 +0300
Subject: hw/virtio-pci: fix virtio behaviour

Enable transitional virtio devices by default.
Enable virtio-1.0 for devices plugged into
PCIe ports (Root ports or Downstream ports).

Using the virtio-1 mode will remove the limitation
of the number of devices that can be attached to a machine
by removing the need for the IO BAR.

Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Cornelia Huck <cornelia.huck@de.ibm.com>
---
 include/hw/compat.h | 8 ++++++++
 1 file changed, 8 insertions(+)

(limited to 'include')

diff --git a/include/hw/compat.h b/include/hw/compat.h
index e5113dcabc..7ee7299c36 100644
--- a/include/hw/compat.h
+++ b/include/hw/compat.h
@@ -6,6 +6,14 @@
         .driver   = "virtio-mmio",\
         .property = "format_transport_address",\
         .value    = "off",\
+    },{\
+        .driver   = "virtio-pci",\
+        .property = "disable-modern",\
+        .value    = "on",\
+    },{\
+        .driver   = "virtio-pci",\
+        .property = "disable-legacy",\
+        .value    = "off",\
     },
 
 #define HW_COMPAT_2_5 \
-- 
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