hw/i386/fw_cfg.c

   1 /*
   2  * QEMU fw_cfg helpers (X86 specific)
   3  *
   4  * Copyright (c) 2019 Red Hat, Inc.
   5  *
   6  * Author:
   7  *   Philippe Mathieu-Daudé <philmd@redhat.com>
   8  *
   9  * SPDX-License-Identifier: GPL-2.0-or-later
  10  *
  11  * This work is licensed under the terms of the GNU GPL, version 2 or later.
  12  * See the COPYING file in the top-level directory.
  13  */
  14
  15 #include "qemu/osdep.h"
  16 #include "hw/i386/fw_cfg.h"
  17 #include "hw/nvram/fw_cfg.h"
  18
  19 const char *fw_cfg_arch_key_name(uint16_t key)
  20 {
  21     static const struct {
  22         uint16_t key;
  23         const char *name;
  24     } fw_cfg_arch_wellknown_keys[] = {
  25         {FW_CFG_ACPI_TABLES, "acpi_tables"},
  26         {FW_CFG_SMBIOS_ENTRIES, "smbios_entries"},
  27         {FW_CFG_IRQ0_OVERRIDE, "irq0_override"},
  28         {FW_CFG_E820_TABLE, "e820_table"},
  29         {FW_CFG_HPET, "hpet"},
  30     };
  31
  32     for (size_t i = 0; i < ARRAY_SIZE(fw_cfg_arch_wellknown_keys); i++) {
  33         if (fw_cfg_arch_wellknown_keys[i].key == key) {
  34             return fw_cfg_arch_wellknown_keys[i].name;
  35         }
  36     }
  37     return NULL;
  38 }