1 files changed, 2 insertions, 2 deletions

diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index f6b8225c2a0b..42b3b9ed641d 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -366,7 +366,7 @@ static pteval_t pte_mfn_to_pfn(pteval_t val)
         if (val & _PAGE_PRESENT) {
                 unsigned long mfn = (val & PTE_MASK) >> PAGE_SHIFT;
                 pteval_t flags = val & ~PTE_MASK;
-                val = (mfn_to_pfn(mfn) << PAGE_SHIFT) | flags;
+                val = ((pteval_t)mfn_to_pfn(mfn) << PAGE_SHIFT) | flags;
         }
 
         return val;
@@ -377,7 +377,7 @@ static pteval_t pte_pfn_to_mfn(pteval_t val)
         if (val & _PAGE_PRESENT) {
                 unsigned long pfn = (val & PTE_MASK) >> PAGE_SHIFT;
                 pteval_t flags = val & ~PTE_MASK;
-                val = (pfn_to_mfn(pfn) << PAGE_SHIFT) | flags;
+                val = ((pteval_t)pfn_to_mfn(pfn) << PAGE_SHIFT) | flags;
         }
 
         return val;