xen: unify pte operations

We can fold the essentially common pte functions together now.

Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 44 insertions, 81 deletions

diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 3148db8e794..272635aaef8 100644
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -171,6 +171,49 @@ void xen_set_pte_at(struct mm_struct *mm, unsigned long addr,
         xen_set_pte(ptep, pteval);
 }
 
+pteval_t xen_pte_val(pte_t pte)
+{
+        pteval_t ret = pte.pte;
+
+        if (ret & _PAGE_PRESENT)
+                ret = machine_to_phys(XMADDR(ret)).paddr | _PAGE_PRESENT;
+
+        return ret;
+}
+
+pgdval_t xen_pgd_val(pgd_t pgd)
+{
+        pgdval_t ret = pgd.pgd;
+        if (ret & _PAGE_PRESENT)
+                ret = machine_to_phys(XMADDR(ret)).paddr | _PAGE_PRESENT;
+        return ret;
+}
+
+pte_t xen_make_pte(pteval_t pte)
+{
+        if (pte & _PAGE_PRESENT) {
+                pte = phys_to_machine(XPADDR(pte)).maddr;
+                pte &= ~(_PAGE_PCD | _PAGE_PWT);
+        }
+
+        return (pte_t){ .pte = pte };
+}
+
+pgd_t xen_make_pgd(pgdval_t pgd)
+{
+        if (pgd & _PAGE_PRESENT)
+                pgd = phys_to_machine(XPADDR(pgd)).maddr;
+
+        return (pgd_t){ pgd };
+}
+
+pmdval_t xen_pmd_val(pmd_t pmd)
+{
+        pmdval_t ret = native_pmd_val(pmd);
+        if (ret & _PAGE_PRESENT)
+                ret = machine_to_phys(XMADDR(ret)).paddr | _PAGE_PRESENT;
+        return ret;
+}
 #ifdef CONFIG_X86_PAE
 void xen_set_pud(pud_t *ptr, pud_t val)
 {
@@ -214,98 +257,18 @@ void xen_pmd_clear(pmd_t *pmdp)
         xen_set_pmd(pmdp, __pmd(0));
 }
 
-pteval_t xen_pte_val(pte_t pte)
-{
-        pteval_t ret = pte.pte;
-
-        if (ret & _PAGE_PRESENT)
-                ret = machine_to_phys(XMADDR(ret)).paddr | _PAGE_PRESENT;
-
-        return ret;
-}
-
-pmdval_t xen_pmd_val(pmd_t pmd)
-{
-        pmdval_t ret = pmd.pmd;
-        if (ret & _PAGE_PRESENT)
-                ret = machine_to_phys(XMADDR(ret)).paddr | _PAGE_PRESENT;
-        return ret;
-}
-
-pgdval_t xen_pgd_val(pgd_t pgd)
-{
-        pgdval_t ret = pgd.pgd;
-        if (ret & _PAGE_PRESENT)
-                ret = machine_to_phys(XMADDR(ret)).paddr | _PAGE_PRESENT;
-        return ret;
-}
-
-pte_t xen_make_pte(pteval_t pte)
-{
-        if (pte & _PAGE_PRESENT) {
-                pte = phys_to_machine(XPADDR(pte)).maddr;
-                pte &= ~(_PAGE_PCD | _PAGE_PWT);
-        }
-
-        return (pte_t){ .pte = pte };
-}
-
 pmd_t xen_make_pmd(pmdval_t pmd)
 {
         if (pmd & _PAGE_PRESENT)
                 pmd = phys_to_machine(XPADDR(pmd)).maddr;
 
-        return (pmd_t){ pmd };
-}
-
-pgd_t xen_make_pgd(pgdval_t pgd)
-{
-        if (pgd & _PAGE_PRESENT)
-                pgd = phys_to_machine(XPADDR(pgd)).maddr;
-
-        return (pgd_t){ pgd };
+        return native_make_pmd(pmd);
 }
 #else  /* !PAE */
 void xen_set_pte(pte_t *ptep, pte_t pte)
 {
         *ptep = pte;
 }
-
-pteval_t xen_pte_val(pte_t pte)
-{
-        pteval_t ret = pte.pte;
-
-        if (ret & _PAGE_PRESENT)
-                ret = machine_to_phys(XMADDR(ret)).paddr;
-
-        return ret;
-}
-
-pgdval_t xen_pgd_val(pgd_t pgd)
-{
-        pteval_t ret = pgd.pgd;
-        if (ret & _PAGE_PRESENT)
-                ret = machine_to_phys(XMADDR(ret)).paddr | _PAGE_PRESENT;
-        return ret;
-}
-
-pte_t xen_make_pte(pteval_t pte)
-{
-        if (pte & _PAGE_PRESENT) {
-                pte = phys_to_machine(XPADDR(pte)).maddr;
-                pte &= ~(_PAGE_PCD | _PAGE_PWT);
-        }
-
-        return (pte_t){ pte };
-}
-
-pgd_t xen_make_pgd(pgdval_t pgd)
-{
-        if (pgd & _PAGE_PRESENT)
-                pgd = phys_to_machine(XPADDR(pgd)).maddr;
-
-        return (pgd_t){ pgd };
-}
 #endif  /* CONFIG_X86_PAE */
 
 /*