From: Bjoern A. Zeeb <baz21@cam.ac.uk>
Date: Thu, 19 May 2016 20:19:34 +0000 (-0500)
Subject: dev, virtio: properly set PCI address space to use IOREG
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=ce610dcab118fe2ae907854429725a4c169cfd56;p=gem5.git

dev, virtio: properly set PCI address space to use IOREG

VirtIO spec < 1.0 demands IOREG to be used on PCI and not memory mapped.
Set the correct bit on the PCI address accordingly.

Committed by Jason Lowe-Power <power.jg@gmail.com>
---

diff --git a/src/dev/virtio/VirtIO.py b/src/dev/virtio/VirtIO.py
index 81bf6e3b8..1345c7603 100644
--- a/src/dev/virtio/VirtIO.py
+++ b/src/dev/virtio/VirtIO.py
@@ -65,7 +65,7 @@ class PciVirtIO(PciDevice):
 
     ClassCode = 0xff # Misc device
 
-    BAR0 = 0x00000000 # Anywhere in 32-bit space
+    BAR0 = 0x00000001 # Anywhere in 32-bit space; IOREG
     BAR0Size = '0B' # Overridden by the device model
 
     InterruptPin = 0x01 # Use #INTA