diff options
author | Ingo Molnar <mingo@elte.hu> | 2008-07-25 11:37:07 +0200 |
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committer | Ingo Molnar <mingo@elte.hu> | 2008-07-25 11:37:07 +0200 |
commit | 0e2f65ee30eee2db054f7fd73f462c5da33ec963 (patch) | |
tree | 26c61eb7745da0c0d9135e9d12088f570cb8530d /arch/x86/xen/mmu.h | |
parent | da7878d75b8520c9ae00d27dfbbce546a7bfdfbb (diff) | |
parent | fb2e405fc1fc8b20d9c78eaa1c7fd5a297efde43 (diff) |
Merge branch 'linus' into x86/pebs
Conflicts:
arch/x86/Kconfig.cpu
arch/x86/kernel/cpu/intel.c
arch/x86/kernel/setup_64.c
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Diffstat (limited to 'arch/x86/xen/mmu.h')
-rw-r--r-- | arch/x86/xen/mmu.h | 39 |
1 files changed, 22 insertions, 17 deletions
diff --git a/arch/x86/xen/mmu.h b/arch/x86/xen/mmu.h index 5fe961caffd4..0f59bd03f9e3 100644 --- a/arch/x86/xen/mmu.h +++ b/arch/x86/xen/mmu.h @@ -10,25 +10,9 @@ 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); -void xen_set_pte(pte_t *ptep, pte_t pteval); -void xen_set_pte_at(struct mm_struct *mm, unsigned long addr, - pte_t *ptep, pte_t pteval); -void xen_set_pmd(pmd_t *pmdp, pmd_t pmdval); void xen_activate_mm(struct mm_struct *prev, struct mm_struct *next); void xen_dup_mmap(struct mm_struct *oldmm, struct mm_struct *mm); @@ -45,11 +29,32 @@ pte_t xen_make_pte(pteval_t); pmd_t xen_make_pmd(pmdval_t); pgd_t xen_make_pgd(pgdval_t); +void xen_set_pte(pte_t *ptep, pte_t pteval); void xen_set_pte_at(struct mm_struct *mm, unsigned long addr, pte_t *ptep, pte_t pteval); + +#ifdef CONFIG_X86_PAE void xen_set_pte_atomic(pte_t *ptep, pte_t pte); -void xen_set_pud(pud_t *ptr, pud_t val); void xen_pte_clear(struct mm_struct *mm, unsigned long addr, pte_t *ptep); void xen_pmd_clear(pmd_t *pmdp); +#endif /* CONFIG_X86_PAE */ + +void xen_set_pmd(pmd_t *pmdp, pmd_t pmdval); +void xen_set_pud(pud_t *ptr, pud_t val); +void xen_set_pmd_hyper(pmd_t *pmdp, pmd_t pmdval); +void xen_set_pud_hyper(pud_t *ptr, pud_t val); + +#if PAGETABLE_LEVELS == 4 +pudval_t xen_pud_val(pud_t pud); +pud_t xen_make_pud(pudval_t pudval); +void xen_set_pgd(pgd_t *pgdp, pgd_t pgd); +void xen_set_pgd_hyper(pgd_t *pgdp, pgd_t pgd); +#endif + +pgd_t *xen_get_user_pgd(pgd_t *pgd); + +pte_t xen_ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr, pte_t *ptep); +void xen_ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr, + pte_t *ptep, pte_t pte); #endif /* _XEN_MMU_H */ |