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| author |   Jeremy Fitzhardinge <jeremy@goop.org> | 2008-03-17 16:37:09 -0700 |
|---|---|---|
| committer |   Ingo Molnar <mingo@elte.hu> | 2008-04-24 23:57:31 +0200 |
| commit | 947a69c90c0d07ac7f214e46dabbe49f2a230e00 (patch) | |
| tree | 6b0c650896d4735d0ce2dd2e639ed056cc976743 /arch/x86/xen/mmu.c | |
| parent | xen: make use of pte_t union (diff) | |
| download | linux-dev-947a69c90c0d07ac7f214e46dabbe49f2a230e00.tar.xz linux-dev-947a69c90c0d07ac7f214e46dabbe49f2a230e00.zip | |
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>
Diffstat (limited to '')
| -rw-r--r-- | arch/x86/xen/mmu.c | 125 |
1 files changed, 44 insertions, 81 deletions
diff --git a/arch/x86/xen/mmu.c b/arch/x86/xen/mmu.c index 3148db8e794e..272635aaef88 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 */ /* |