From: Keir Fraser <keir@xensource.com>
Date: Tue, 9 Oct 2007 15:05:43 +0000 (+0100)
Subject: [IA64] Update for cset 16067:9f9f9b68cd08
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~14899
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=061078be62fdb93e8c0fefa013f23f8248a962cb;p=xen.git

[IA64] Update for cset 16067:9f9f9b68cd08
Signed-off-by: Alex Williamson <alex.williamson@hp.com>
---

diff --git a/xen/arch/ia64/xen/mm.c b/xen/arch/ia64/xen/mm.c
index 8d8cc710d7..a774f98641 100644
--- a/xen/arch/ia64/xen/mm.c
+++ b/xen/arch/ia64/xen/mm.c
@@ -2893,6 +2893,13 @@ arch_memory_op(int op, XEN_GUEST_HANDLE(void) arg)
     return 0;
 }
 
+int
+iomem_page_test(unsigned long mfn, struct page_info *page)
+{
+	return unlikely(!mfn_valid(mfn)) ||
+	       unlikely(page_get_owner(page) == dom_io);
+}
+
 /*
  * Local variables:
  * mode: C
diff --git a/xen/include/asm-ia64/mm.h b/xen/include/asm-ia64/mm.h
index 4f3810e1d8..507c8b9eac 100644
--- a/xen/include/asm-ia64/mm.h
+++ b/xen/include/asm-ia64/mm.h
@@ -185,6 +185,9 @@ static inline int get_page(struct page_info *page,
     return 1;
 }
 
+/* Decide whether this page looks like iomem or real memory */
+int iomem_page_test(unsigned long mfn, struct page_info *page);
+
 extern void put_page_type(struct page_info *page);
 extern int get_page_type(struct page_info *page, u32 type);