projects/linux·blob master · refs

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1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef _ASM_X86_INIT_H
3#define _ASM_X86_INIT_H
4
5struct x86_mapping_info {
6 void *(*alloc_pgt_page)(void *); /* allocate buf for page table */
7 void (*free_pgt_page)(void *, void *); /* free buf for page table */
8 void *context; /* context for alloc_pgt_page */
9 unsigned long page_flag; /* page flag for PMD or PUD entry */
10 unsigned long offset; /* ident mapping offset */
11 bool direct_gbpages; /* PUD level 1GB page support */
12 unsigned long kernpg_flag; /* kernel pagetable flag override */
13};
14
15int kernel_ident_mapping_init(struct x86_mapping_info *info, pgd_t *pgd_page,
16 unsigned long pstart, unsigned long pend);
17
18void kernel_ident_mapping_free(struct x86_mapping_info *info, pgd_t *pgd);
19
20#endif /* _ASM_X86_INIT_H */