[Xen-devel][PATCH]x86: hvm: fix get msix entry error

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Subject:	[Xen-devel][PATCH]x86: hvm: fix get msix entry error
From:	"Zhang, Yang" <yang.zhang@xxxxxxxxx>
Date:	Mon, 6 Jul 2009 14:12:04 +0800
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Cc:	Fraser <keir.fraser@xxxxxxxxxxxxx>, "He, Qing" <qing.he@xxxxxxxxx>
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Thread-topic:	[Xen-devel][PATCH]x86: hvm: fix get msix entry error

There is a mistake to get the msix entry number. It should be 
divide instead of modulus.

Signed-off-by: Yang Zhang <yang.zhang@xxxxxxxxx>
Signed-off-by: Qing He <qing.he@xxxxxxxxx>

diff -r 112680f620bf xen/arch/x86/hvm/vmsi.c
--- a/xen/arch/x86/hvm/vmsi.c   Mon Jun 08 18:23:57 2009 +0100
+++ b/xen/arch/x86/hvm/vmsi.c   Mon Jul 06 13:06:03 2009 +0800
@@ -290,7 +290,7 @@
         goto out;
 
     entry = msixtbl_find_entry(v, address);
-    nr_entry = (address - entry->gtable) % PCI_MSIX_ENTRY_SIZE;
+    nr_entry = (address - entry->gtable) / PCI_MSIX_ENTRY_SIZE;
 
     offset = address & (PCI_MSIX_ENTRY_SIZE - 1);
     if ( offset != PCI_MSIX_ENTRY_VECTOR_CTRL_OFFSET)

fix_get_msixtbl_entry_error.patch
Description: fix_get_msixtbl_entry_error.patch

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[Xen-devel][PATCH]x86: hvm: fix get msix entry error