tree fde1552e456e1726b6102466440fd95f34c611cf
parent aa659be3dc2aa86614bcf6960f9d4af2a4362156
author Yan Vugenfirer <yvugenfi@redhat.com> 1252421381 -0400
committer Anthony Liguori <aliguori@us.ibm.com> 1252682387 -0500

VirtIO: Fix QEMU crash during Windows PNP tests

Hello,

In some cases bus driver can deassert "bus master" bit in PCI command
register. The driver will no longer be able to update related registers in
the device. Eventually it will cause QEMU to exit in "virtqueue_num_heads"
function.

Attached path that fixes the described issue.

Best regards,
Yan Vugenfirer.

>From 3fdafbdfad676ec8479dc073cff70bf356868bfe Mon Sep 17 00:00:00 2001
From: Yan Vugenfirer <yvugenfi@redhat.com>
Date: Tue, 8 Sep 2009 10:08:14 -0400
Subject: [PATCH] VirtIO: Fix QEMU crash during Windows PNP tests

Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>