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hw/ppc: Implement fw_cfg_arch_key_name()

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Implement fw_cfg_arch_key_name(), which returns the name of a
ppc-specific key.

The fw_cfg device is used by the machine using OpenBIOS:
- 40p
- mac99 (oldworld)
- g3beige (newworld)

Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Message-Id: <20190422195020.1494-6-philmd@redhat.com>
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
This commit is contained in:
Philippe Mathieu-Daudé 2019-04-22 15:50:42 +02:00
parent bd3f680f66
commit d632b9de78
2 changed files with 46 additions and 1 deletions
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2
hw/ppc/Makefile.objs
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@ -1,5 +1,5 @@
# 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

45
hw/ppc/fw_cfg.c Normal file
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@ -0,0 +1,45 @@
/*
* 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;
}