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23a3f5f50c
cpuNodeData has always been followed by cpuDecode as no hypervisor driver is really interested in raw CPUID data for a host CPU. Let's create a new CPU driver API which returns virCPUDefPtr directly. Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
117 lines
2.9 KiB
C
117 lines
2.9 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[] = {
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VIR_ARCH_ARMV6L,
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VIR_ARCH_ARMV7B,
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VIR_ARCH_ARMV7L,
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VIR_ARCH_AARCH64,
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};
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static int
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virCPUarmUpdate(virCPUDefPtr guest,
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const virCPUDef *host)
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{
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int ret = -1;
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virCPUDefPtr updated = NULL;
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if (guest->mode != VIR_CPU_MODE_HOST_MODEL)
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return 0;
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if (!host) {
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virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s",
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_("unknown host CPU model"));
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goto cleanup;
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}
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if (!(updated = virCPUDefCopyWithoutModel(guest)))
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goto cleanup;
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updated->mode = VIR_CPU_MODE_CUSTOM;
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if (virCPUDefCopyModel(updated, host, true) < 0)
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goto cleanup;
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virCPUDefStealModel(guest, updated, false);
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guest->mode = VIR_CPU_MODE_CUSTOM;
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guest->match = VIR_CPU_MATCH_EXACT;
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ret = 0;
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cleanup:
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virCPUDefFree(updated);
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return ret;
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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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virCPUarmCompare(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 = virCPUarmCompare,
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.decode = NULL,
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.encode = NULL,
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.baseline = armBaseline,
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.update = virCPUarmUpdate,
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};
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