cachepc-qemu

Fork of AMDESE/qemu with changes for cachepc side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-qemu
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fw_cfg.c (885B)

      1/*
      2 * QEMU fw_cfg helpers (MIPS specific)
      3 *
      4 * Copyright (c) 2020 Lemote, Inc.
      5 *
      6 * Author:
      7 *   Huacai Chen (chenhc@lemote.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/mips/fw_cfg.h"
     17#include "hw/nvram/fw_cfg.h"
     18
     19const 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_MACHINE_VERSION, "machine_version"},
     26        {FW_CFG_CPU_FREQ, "cpu_frequency"},
     27    };
     28
     29    for (size_t i = 0; i < ARRAY_SIZE(fw_cfg_arch_wellknown_keys); i++) {
     30        if (fw_cfg_arch_wellknown_keys[i].key == key) {
     31            return fw_cfg_arch_wellknown_keys[i].name;
     32        }
     33    }
     34    return NULL;
     35}