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907cd43902
Split these helpers into a couple of per-level functions and add support for an additional page table level. Signed-off-by: Xiong Zhang <xiong.y.zhang@intel.com> [ Split off into separate patch ] Signed-off-by: Kirill A. Shutemov <kirill.shutemov@linux.intel.com> Acked-by: Thomas Gleixner <tglx@linutronix.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Brian Gerst <brgerst@gmail.com> Cc: Dave Hansen <dave.hansen@intel.com> Cc: Denys Vlasenko <dvlasenk@redhat.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Josh Poimboeuf <jpoimboe@redhat.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Michal Hocko <mhocko@suse.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: linux-arch@vger.kernel.org Cc: linux-mm@kvack.org Link: http://lkml.kernel.org/r/20170317185515.8636-6-kirill.shutemov@linux.intel.com Signed-off-by: Ingo Molnar <mingo@kernel.org>
27 lines
616 B
C
27 lines
616 B
C
#ifndef _XEN_MMU_H
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#include <linux/linkage.h>
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#include <asm/page.h>
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enum pt_level {
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PT_PGD,
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PT_P4D,
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PT_PUD,
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PT_PMD,
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PT_PTE
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};
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bool __set_phys_to_machine(unsigned long pfn, unsigned long mfn);
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void set_pte_mfn(unsigned long vaddr, unsigned long pfn, pgprot_t flags);
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pte_t xen_ptep_modify_prot_start(struct mm_struct *mm, unsigned long addr, pte_t *ptep);
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void xen_ptep_modify_prot_commit(struct mm_struct *mm, unsigned long addr,
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pte_t *ptep, pte_t pte);
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unsigned long xen_read_cr2_direct(void);
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extern void xen_init_mmu_ops(void);
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extern void xen_hvm_init_mmu_ops(void);
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#endif /* _XEN_MMU_H */
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