162306a36Sopenharmony_ci/* SPDX-License-Identifier: GPL-2.0 */ 262306a36Sopenharmony_ci 362306a36Sopenharmony_ci/* 462306a36Sopenharmony_ci * Copyright (c) 2021, Microsoft Corporation. 562306a36Sopenharmony_ci * Pasha Tatashin <pasha.tatashin@soleen.com> 662306a36Sopenharmony_ci */ 762306a36Sopenharmony_ci 862306a36Sopenharmony_ci#ifndef _ASM_TRANS_TABLE_H 962306a36Sopenharmony_ci#define _ASM_TRANS_TABLE_H 1062306a36Sopenharmony_ci 1162306a36Sopenharmony_ci#include <linux/bits.h> 1262306a36Sopenharmony_ci#include <linux/types.h> 1362306a36Sopenharmony_ci#include <asm/pgtable-types.h> 1462306a36Sopenharmony_ci 1562306a36Sopenharmony_ci/* 1662306a36Sopenharmony_ci * trans_alloc_page 1762306a36Sopenharmony_ci * - Allocator that should return exactly one zeroed page, if this 1862306a36Sopenharmony_ci * allocator fails, trans_pgd_create_copy() and trans_pgd_idmap_page() 1962306a36Sopenharmony_ci * return -ENOMEM error. 2062306a36Sopenharmony_ci * 2162306a36Sopenharmony_ci * trans_alloc_arg 2262306a36Sopenharmony_ci * - Passed to trans_alloc_page as an argument 2362306a36Sopenharmony_ci */ 2462306a36Sopenharmony_ci 2562306a36Sopenharmony_cistruct trans_pgd_info { 2662306a36Sopenharmony_ci void * (*trans_alloc_page)(void *arg); 2762306a36Sopenharmony_ci void *trans_alloc_arg; 2862306a36Sopenharmony_ci}; 2962306a36Sopenharmony_ci 3062306a36Sopenharmony_ciint trans_pgd_create_copy(struct trans_pgd_info *info, pgd_t **trans_pgd, 3162306a36Sopenharmony_ci unsigned long start, unsigned long end); 3262306a36Sopenharmony_ci 3362306a36Sopenharmony_ciint trans_pgd_idmap_page(struct trans_pgd_info *info, phys_addr_t *trans_ttbr0, 3462306a36Sopenharmony_ci unsigned long *t0sz, void *page); 3562306a36Sopenharmony_ci 3662306a36Sopenharmony_ciint trans_pgd_copy_el2_vectors(struct trans_pgd_info *info, 3762306a36Sopenharmony_ci phys_addr_t *el2_vectors); 3862306a36Sopenharmony_ci 3962306a36Sopenharmony_ciextern char trans_pgd_stub_vectors[]; 4062306a36Sopenharmony_ci 4162306a36Sopenharmony_ci#endif /* _ASM_TRANS_TABLE_H */ 42