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137 lines
3.4 KiB
C
137 lines
3.4 KiB
C
/*
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* cpu_arm.c: CPU driver for arm CPUs
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*
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* Copyright (C) 2013 Red Hat, Inc.
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* Copyright (C) Canonical Ltd. 2012
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library. If not, see
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* <http://www.gnu.org/licenses/>.
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*
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* Authors:
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* Chuck Short <chuck.short@canonical.com>
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*/
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#include <config.h>
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#include "viralloc.h"
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#include "cpu.h"
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#include "virstring.h"
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#define VIR_FROM_THIS VIR_FROM_CPU
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static const virArch archs[] = {VIR_ARCH_ARMV6L,
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VIR_ARCH_ARMV7B,
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VIR_ARCH_ARMV7L};
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static virCPUDataPtr
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ArmNodeData(virArch arch)
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{
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virCPUDataPtr data;
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if (VIR_ALLOC(data) < 0)
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return NULL;
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data->arch = arch;
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return data;
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}
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static int
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ArmDecode(virCPUDefPtr cpu,
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const virCPUData *data ATTRIBUTE_UNUSED,
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const char **models ATTRIBUTE_UNUSED,
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unsigned int nmodels ATTRIBUTE_UNUSED,
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const char *preferred ATTRIBUTE_UNUSED,
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unsigned int flags)
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{
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virCheckFlags(VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES, -1);
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if (cpu->model == NULL &&
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VIR_STRDUP(cpu->model, "host") < 0)
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return -1;
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return 0;
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}
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static void
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ArmDataFree(virCPUDataPtr data)
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{
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VIR_FREE(data);
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}
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static int
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ArmUpdate(virCPUDefPtr guest,
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const virCPUDef *host)
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{
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guest->match = VIR_CPU_MATCH_EXACT;
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virCPUDefFreeModel(guest);
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return virCPUDefCopyModel(guest, host, true);
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}
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static virCPUCompareResult
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ArmGuestData(virCPUDefPtr host ATTRIBUTE_UNUSED,
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virCPUDefPtr guest ATTRIBUTE_UNUSED,
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virCPUDataPtr *data ATTRIBUTE_UNUSED,
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char **message ATTRIBUTE_UNUSED)
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{
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return VIR_CPU_COMPARE_IDENTICAL;
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}
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static virCPUDefPtr
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ArmBaseline(virCPUDefPtr *cpus,
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unsigned int ncpus ATTRIBUTE_UNUSED,
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const char **models ATTRIBUTE_UNUSED,
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unsigned int nmodels ATTRIBUTE_UNUSED,
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unsigned int flags)
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{
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virCPUDefPtr cpu = NULL;
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virCheckFlags(VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES |
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VIR_CONNECT_BASELINE_CPU_MIGRATABLE, NULL);
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if (VIR_ALLOC(cpu) < 0 ||
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VIR_STRDUP(cpu->model, cpus[0]->model) < 0) {
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virCPUDefFree(cpu);
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return NULL;
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}
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cpu->type = VIR_CPU_TYPE_GUEST;
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cpu->match = VIR_CPU_MATCH_EXACT;
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return cpu;
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}
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static virCPUCompareResult
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ArmCompare(virCPUDefPtr host ATTRIBUTE_UNUSED,
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virCPUDefPtr cpu ATTRIBUTE_UNUSED,
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bool failMessages ATTRIBUTE_UNUSED)
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{
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return VIR_CPU_COMPARE_IDENTICAL;
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}
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struct cpuArchDriver cpuDriverArm = {
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.name = "arm",
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.arch = archs,
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.narch = ARRAY_CARDINALITY(archs),
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.compare = ArmCompare,
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.decode = ArmDecode,
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.encode = NULL,
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.free = ArmDataFree,
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.nodeData = ArmNodeData,
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.guestData = ArmGuestData,
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.baseline = ArmBaseline,
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.update = ArmUpdate,
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.hasFeature = NULL,
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};
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