From: awilliam@xenbuild.aw <awilliam@xenbuild.aw>
Date: Fri, 9 Jun 2006 16:35:36 +0000 (-0600)
Subject: [IA64] align pages in assign_domain_same_page()
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~15986
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=58f8dc1cba4dd024fdba3325d4b795a6ea900ebc;p=xen.git

[IA64] align pages in assign_domain_same_page()

Fix a bug. potential miss of page assignment for domain.
If mpaddr and size are not aligned well, the last page might be not
assigned for the domain.

Signed-off-by: Kouya Shimura <kouya@jp.fujitsu.com>
---

diff --git a/xen/arch/ia64/xen/mm.c b/xen/arch/ia64/xen/mm.c
index 7cd2a0b544..7b6135ca23 100644
--- a/xen/arch/ia64/xen/mm.c
+++ b/xen/arch/ia64/xen/mm.c
@@ -658,8 +658,8 @@ assign_domain_same_page(struct domain *d,
                         unsigned long flags)
 {
     //XXX optimization
-    unsigned long end = mpaddr + size;
-    for (; mpaddr < end; mpaddr += PAGE_SIZE) {
+    unsigned long end = PAGE_ALIGN(mpaddr + size);
+    for (mpaddr &= PAGE_MASK; mpaddr < end; mpaddr += PAGE_SIZE) {
         __assign_domain_page(d, mpaddr, mpaddr, flags);
     }
 }