文件操作 - trans_pgd.h
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文件: /usr/src/linux-headers-5.15.0-113/arch/arm64/include/asm/trans_pgd.h
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/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (c) 2020, Microsoft Corporation. * Pavel Tatashin <pasha.tatashin@soleen.com> */ #ifndef _ASM_TRANS_TABLE_H #define _ASM_TRANS_TABLE_H #include <linux/bits.h> #include <linux/types.h> #include <asm/pgtable-types.h> /* * trans_alloc_page * - Allocator that should return exactly one zeroed page, if this * allocator fails, trans_pgd_create_copy() and trans_pgd_map_page() * return -ENOMEM error. * * trans_alloc_arg * - Passed to trans_alloc_page as an argument */ struct trans_pgd_info { void * (*trans_alloc_page)(void *arg); void *trans_alloc_arg; }; int trans_pgd_create_copy(struct trans_pgd_info *info, pgd_t **trans_pgd, unsigned long start, unsigned long end); int trans_pgd_map_page(struct trans_pgd_info *info, pgd_t *trans_pgd, void *page, unsigned long dst_addr, pgprot_t pgprot); int trans_pgd_idmap_page(struct trans_pgd_info *info, phys_addr_t *trans_ttbr0, unsigned long *t0sz, void *page); #endif /* _ASM_TRANS_TABLE_H */
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