From: Keir Fraser <keir.fraser@citrix.com>
Date: Mon, 6 Jul 2009 10:58:02 +0000 (+0100)
Subject: x86, hvm:  fix get msix entry error
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~13639
X-Git-Url: https://dgit.raspbian.org/%22http:/www.example.com/cgi/%22https:/%22bookmarks://%22/%22http:/www.example.com/cgi/%22https:/%22bookmarks:/%22?a=commitdiff_plain;h=df117d7fe37890c4a9c6fb18f2011964c02bf9b2;p=xen.git

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@intel.com>
Signed-off-by: Qing He <qing.he@intel.com>
---

diff --git a/xen/arch/x86/hvm/vmsi.c b/xen/arch/x86/hvm/vmsi.c
index 37c1e5c14f..e6bc057dcd 100644
--- a/xen/arch/x86/hvm/vmsi.c
+++ b/xen/arch/x86/hvm/vmsi.c
@@ -290,7 +290,7 @@ static int msixtbl_write(struct vcpu *v, unsigned long address,
         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)