[Xen-changelog] [xen-unstable] Calculation of MSI-X table size needs to be masked.

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1209978764 -3600
# Node ID eb046aff9f17471983a165d05e53fb190ee27a34
# Parent  bb49aeae1ff24477f066c19aaf032f740bed369e
Calculation of MSI-X table size needs to be masked.

Signed-off-by: Espen Skoglund <espen.skoglund@xxxxxxxxxxxxx>
---
 tools/python/xen/util/pci.py |    6 ++++--
 1 files changed, 4 insertions(+), 2 deletions(-)

diff -r bb49aeae1ff2 -r eb046aff9f17 tools/python/xen/util/pci.py
--- a/tools/python/xen/util/pci.py      Sun May 04 08:32:00 2008 +0100
+++ b/tools/python/xen/util/pci.py      Mon May 05 10:12:44 2008 +0100
@@ -30,6 +30,7 @@ PCI_STATUS_OFFSET = 0x6
 PCI_STATUS_OFFSET = 0x6
 PCI_CAP_OFFSET = 0x34
 MSIX_BIR_MASK = 0x7
+MSIX_SIZE_MASK = 0x3ff
 
 #Calculate PAGE_SHIFT: number of bits to shift an address to get the page 
number
 PAGE_SIZE = resource.getpagesize()
@@ -120,8 +121,9 @@ class PciDevice:
                         message_cont_lo = ord(conf_file.read(1))
                         message_cont_hi = ord(conf_file.read(1))
                         self.msix=1
-                        self.msix_entries = message_cont_lo + \
-                                            message_cont_hi << 8
+                        self.msix_entries = (message_cont_lo + \
+                                             message_cont_hi << 8) \
+                                             & MSIX_SIZE_MASK
                         t_off=conf_file.read(4)
                         p_off=conf_file.read(4)
                         self.table_offset=ord(t_off[0]) | (ord(t_off[1])<<8) | 
\

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