49 lines
876 B
C
49 lines
876 B
C
#ifndef _ASM_X86_PGTABLE_3LEVEL_DEFS_H
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#define _ASM_X86_PGTABLE_3LEVEL_DEFS_H
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#ifndef __ASSEMBLY__
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#include <linux/types.h>
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typedef u64 pteval_t;
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typedef u64 pmdval_t;
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typedef u64 pudval_t;
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typedef u64 pgdval_t;
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typedef u64 pgprotval_t;
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typedef union {
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struct {
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unsigned long pte_low, pte_high;
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};
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pteval_t pte;
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} pte_t;
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#endif /* !__ASSEMBLY__ */
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#ifdef CONFIG_PARAVIRT
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#define SHARED_KERNEL_PMD (pv_info.shared_kernel_pmd)
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#else
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#define SHARED_KERNEL_PMD 1
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#endif
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#define PAGETABLE_LEVELS 3
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/*
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* PGDIR_SHIFT determines what a top-level page table entry can map
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*/
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#define PGDIR_SHIFT 30
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#define PTRS_PER_PGD 4
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/*
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* PMD_SHIFT determines the size of the area a middle-level
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* page table can map
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*/
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#define PMD_SHIFT 21
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#define PTRS_PER_PMD 512
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/*
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* entries per page directory level
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*/
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#define PTRS_PER_PTE 512
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#endif /* _ASM_X86_PGTABLE_3LEVEL_DEFS_H */
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