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-rw-r--r--arch/x86/xen/mmu.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index df40bf74ea75..4e527e7893a8 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -185,7 +185,7 @@ static pteval_t pte_mfn_to_pfn(pteval_t val)
185 if (val & _PAGE_PRESENT) { 185 if (val & _PAGE_PRESENT) {
186 unsigned long mfn = (val & PTE_MASK) >> PAGE_SHIFT; 186 unsigned long mfn = (val & PTE_MASK) >> PAGE_SHIFT;
187 pteval_t flags = val & ~PTE_MASK; 187 pteval_t flags = val & ~PTE_MASK;
188 val = (mfn_to_pfn(mfn) << PAGE_SHIFT) | flags; 188 val = ((pteval_t)mfn_to_pfn(mfn) << PAGE_SHIFT) | flags;
189 } 189 }
190 190
191 return val; 191 return val;
@@ -196,7 +196,7 @@ static pteval_t pte_pfn_to_mfn(pteval_t val)
196 if (val & _PAGE_PRESENT) { 196 if (val & _PAGE_PRESENT) {
197 unsigned long pfn = (val & PTE_MASK) >> PAGE_SHIFT; 197 unsigned long pfn = (val & PTE_MASK) >> PAGE_SHIFT;
198 pteval_t flags = val & ~PTE_MASK; 198 pteval_t flags = val & ~PTE_MASK;
199 val = (pfn_to_mfn(pfn) << PAGE_SHIFT) | flags; 199 val = ((pteval_t)pfn_to_mfn(pfn) << PAGE_SHIFT) | flags;
200 } 200 }
201 201
202 return val; 202 return val;