From a3e69910c4381ef1543da98e010223f407ee3eb9 Mon Sep 17 00:00:00 2001
From: Sheng Yang <sheng@linux.intel.com>
Date: Thu, 21 May 2009 17:08:57 -0700
Subject: [PATCH 19/25] kvm: qemu: Fix wrong counting of MSI-X table size
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The PCI spec says...

System software reads this field to determine the MSI-X Table Size *N*,
which is encoded as *N-1*. For example, a returned value of “00000000011”
indicates a table size of 4.

Signed-off-by: Sheng Yang <sheng@linux.intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
(cherry picked from commit f321d497b6e53903a37e26989d95e1620c7c78ac)
Signed-off-by: Chris Wright <chrisw@redhat.com>
Bugzilla: 498085
Message-Id: <1242950943-30180-20-git-send-email-chrisw@redhat.com>
Signed-off-by: Eduardo Habkost <ehabkost@redhat.com>
RH-Upstream-status: applied
Acked-by: Juan Quintela <quintela@redhat.com>
Acked-by: Marcelo Tosatti <mtosatti@redhat.com>
Acked-by: Don Dutile <ddutile@redhat.com>
---
 qemu/hw/device-assignment.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/qemu/hw/device-assignment.c b/qemu/hw/device-assignment.c
index 09228f4..5476daf 100644
--- a/qemu/hw/device-assignment.c
+++ b/qemu/hw/device-assignment.c
@@ -818,6 +818,7 @@ static int assigned_dev_update_msix_mmio(PCIDevice *pci_dev)
 
     entries_max_nr = pci_dev->config[pos + 2];
     entries_max_nr &= PCI_MSIX_TABSIZE;
+    entries_max_nr += 1;
 
     /* Get the usable entry number for allocating */
     for (i = 0; i < entries_max_nr; i++) {
-- 
1.6.3.rc4.29.g8146