// SPDX-License-Identifier: BSD-3-Clause OR GPL-2.0
/******************************************************************************
*
* Module Name: oslinuxtbl - Linux OSL for obtaining ACPI tables
*
* Copyright (C) 2000 - 2020, Intel Corp.
*
*****************************************************************************/
#include "acpidump.h"
#define _COMPONENT ACPI_OS_SERVICES
ACPI_MODULE_NAME("oslinuxtbl")
#ifndef PATH_MAX
#define PATH_MAX 256
#endif
/* List of information about obtained ACPI tables */
typedef struct osl_table_info {
struct osl_table_info *next;
u32 instance;
char signature[ACPI_NAMESEG_SIZE];
} osl_table_info;
/* Local prototypes */
static acpi_status osl_table_initialize(void);
static acpi_status
osl_table_name_from_file(char *filename, char *signature, u32 *instance);
static acpi_status osl_add_table_to_list(char *signature, u32 instance);
static acpi_status
osl_read_table_from_file(char *filename,
acpi_size file_offset,
char *signature, struct acpi_table_header **table);
static acpi_status
osl_map_table(acpi_size address,
char *signature, struct acpi_table_header **table);
static void osl_unmap_table(struct acpi_table_header *table);
static acpi_physical_address
osl_find_rsdp_via_efi_by_keyword(FILE * file, const char *keyword);
static acpi_physical_address osl_find_rsdp_via_efi(void);
static acpi_status osl_load_rsdp(void);
static acpi_status osl_list_customized_tables(char *directory);
static acpi_status
osl_get_customized_table(char *pathname,
char *signature,
u32 instance,
struct acpi_table_header **table,
acpi_physical_address *address);
static acpi_status osl_list_bios_tables(void);
static acpi_status
osl_get_bios_table(char *signature,
u32 instance,
struct acpi_table_header **table,
acpi_physical_address *address);
static acpi_status osl_get_last_status(acpi_status