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-rw-r--r--arch/x86/xen/mmu.h12
1 files changed, 0 insertions, 12 deletions
diff --git a/arch/x86/xen/mmu.h b/arch/x86/xen/mmu.h
index 297bf9f5b8bc..7856e37f6044 100644
--- a/arch/x86/xen/mmu.h
+++ b/arch/x86/xen/mmu.h
@@ -10,18 +10,6 @@ enum pt_level {
PT_PTE
};
-/*
- * Page-directory addresses above 4GB do not fit into architectural %cr3.
- * When accessing %cr3, or equivalent field in vcpu_guest_context, guests
- * must use the following accessor macros to pack/unpack valid MFNs.
- *
- * Note that Xen is using the fact that the pagetable base is always
- * page-aligned, and putting the 12 MSB of the address into the 12 LSB
- * of cr3.
- */
-#define xen_pfn_to_cr3(pfn) (((unsigned)(pfn) << 12) | ((unsigned)(pfn) >> 20))
-#define xen_cr3_to_pfn(cr3) (((unsigned)(cr3) >> 12) | ((unsigned)(cr3) << 20))
-
void set_pte_mfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags);