hw/ppc: Implement fw_cfg_arch_key_name()

# shared objects

obj-y += ppc.o ppc_booke.o fdt.o

obj-y += ppc.o ppc_booke.o fdt.o fw_cfg.o

# IBM pSeries (sPAPR)

obj-$(CONFIG_PSERIES) += spapr.o spapr_caps.o spapr_vio.o spapr_events.o

obj-$(CONFIG_PSERIES) += spapr_hcall.o spapr_iommu.o spapr_rtas.o

/*

 * fw_cfg helpers (PPC specific)

 *

 * Copyright (c) 2019 Red Hat, Inc.

 *

 * Author:

 *   Philippe Mathieu-Daudé <philmd@redhat.com>

 *

 * SPDX-License-Identifier: GPL-2.0-or-later

 *

 * This work is licensed under the terms of the GNU GPL, version 2 or later.

 * See the COPYING file in the top-level directory.

 */

#include "qemu/osdep.h"

#include "hw/ppc/ppc.h"

#include "hw/nvram/fw_cfg.h"

const char *fw_cfg_arch_key_name(uint16_t key)

{

    static const struct {

        uint16_t key;

        const char *name;

    } fw_cfg_arch_wellknown_keys[] = {

        {FW_CFG_PPC_WIDTH, "width"},

        {FW_CFG_PPC_HEIGHT, "height"},

        {FW_CFG_PPC_DEPTH, "depth"},

        {FW_CFG_PPC_TBFREQ, "tbfreq"},

        {FW_CFG_PPC_CLOCKFREQ, "clockfreq"},

        {FW_CFG_PPC_IS_KVM, "is_kvm"},

        {FW_CFG_PPC_KVM_HC, "kvm_hc"},

        {FW_CFG_PPC_KVM_PID, "pid"},

        {FW_CFG_PPC_NVRAM_ADDR, "nvram_addr"},

        {FW_CFG_PPC_BUSFREQ, "busfreq"},

        {FW_CFG_PPC_NVRAM_FLAT, "nvram_flat"},

        {FW_CFG_PPC_VIACONFIG, "viaconfig"},

    };

    for (size_t i = 0; i < ARRAY_SIZE(fw_cfg_arch_wellknown_keys); i++) {

        if (fw_cfg_arch_wellknown_keys[i].key == key) {

            return fw_cfg_arch_wellknown_keys[i].name;

        }

    }

    return NULL;

}