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authorJeremy Fitzhardinge <jeremy@goop.org>2008-03-17 16:37:09 -0700
committerIngo Molnar <mingo@elte.hu>2008-04-24 23:57:31 +0200
commit947a69c90c0d07ac7f214e46dabbe49f2a230e00 (patch)
tree6b0c650896d4735d0ce2dd2e639ed056cc976743
parent430442e38e7f049841c5838f8c7027bd9e170045 (diff)
downloadop-kernel-dev-947a69c90c0d07ac7f214e46dabbe49f2a230e00.zip
op-kernel-dev-947a69c90c0d07ac7f214e46dabbe49f2a230e00.tar.gz
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>
-rw-r--r--arch/x86/xen/mmu.c125
1 files changed, 44 insertions, 81 deletions
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
index 3148db8..272635a 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 */
/*
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