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Message-Id: <d624d53ac6971de9c6c2.1205797029@localhost>
Date: Mon, 17 Mar 2008 16:37:09 -0700
From: Jeremy Fitzhardinge <jeremy@...p.org>
To: Ingo Molnar <mingo@...e.hu>
Cc: LKML <linux-kernel@...r.kernel.org>,
Ian Campbell <ijc@...lion.org.uk>
Subject: [PATCH 18 of 31] xen: unify pte operations
We can fold the essentially common pte functions together now.
Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@...rix.com>
---
arch/x86/xen/mmu.c | 125 ++++++++++++++++++----------------------------------
1 file changed, 44 insertions(+), 81 deletions(-)
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c
--- a/arch/x86/xen/mmu.c
+++ b/arch/x86/xen/mmu.c
@@ -171,6 +171,49 @@
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)
{
@@ -214,97 +257,17 @@
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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