libvirt/src/cpu/cpu_arm.c
Jiri Denemark e2ddc811ab cpu: Consolidate ARM drivers
Both ARM and AArch64 drivers are exactly the same (modulo function
names). Let's use just one driver for all ARM architectures.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-06-25 00:02:30 +02:00

140 lines
3.4 KiB
C

/*
* cpu_arm.c: CPU driver for arm CPUs
*
* Copyright (C) 2013 Red Hat, Inc.
* Copyright (C) Canonical Ltd. 2012
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library. If not, see
* <http://www.gnu.org/licenses/>.
*
* Authors:
* Chuck Short <chuck.short@canonical.com>
*/
#include <config.h>
#include "viralloc.h"
#include "cpu.h"
#include "virstring.h"
#define VIR_FROM_THIS VIR_FROM_CPU
static const virArch archs[] = {
VIR_ARCH_ARMV6L,
VIR_ARCH_ARMV7B,
VIR_ARCH_ARMV7L,
VIR_ARCH_AARCH64,
};
static virCPUDataPtr
armNodeData(virArch arch)
{
virCPUDataPtr data;
if (VIR_ALLOC(data) < 0)
return NULL;
data->arch = arch;
return data;
}
static int
armDecode(virCPUDefPtr cpu,
const virCPUData *data ATTRIBUTE_UNUSED,
const char **models ATTRIBUTE_UNUSED,
unsigned int nmodels ATTRIBUTE_UNUSED,
const char *preferred ATTRIBUTE_UNUSED,
unsigned int flags)
{
virCheckFlags(VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES, -1);
if (cpu->model == NULL &&
VIR_STRDUP(cpu->model, "host") < 0)
return -1;
return 0;
}
static void
armDataFree(virCPUDataPtr data)
{
VIR_FREE(data);
}
static int
armUpdate(virCPUDefPtr guest,
const virCPUDef *host)
{
guest->match = VIR_CPU_MATCH_EXACT;
virCPUDefFreeModel(guest);
return virCPUDefCopyModel(guest, host, true);
}
static virCPUCompareResult
armGuestData(virCPUDefPtr host ATTRIBUTE_UNUSED,
virCPUDefPtr guest ATTRIBUTE_UNUSED,
virCPUDataPtr *data ATTRIBUTE_UNUSED,
char **message ATTRIBUTE_UNUSED)
{
return VIR_CPU_COMPARE_IDENTICAL;
}
static virCPUDefPtr
armBaseline(virCPUDefPtr *cpus,
unsigned int ncpus ATTRIBUTE_UNUSED,
const char **models ATTRIBUTE_UNUSED,
unsigned int nmodels ATTRIBUTE_UNUSED,
unsigned int flags)
{
virCPUDefPtr cpu = NULL;
virCheckFlags(VIR_CONNECT_BASELINE_CPU_EXPAND_FEATURES |
VIR_CONNECT_BASELINE_CPU_MIGRATABLE, NULL);
if (VIR_ALLOC(cpu) < 0 ||
VIR_STRDUP(cpu->model, cpus[0]->model) < 0) {
virCPUDefFree(cpu);
return NULL;
}
cpu->type = VIR_CPU_TYPE_GUEST;
cpu->match = VIR_CPU_MATCH_EXACT;
return cpu;
}
static virCPUCompareResult
armCompare(virCPUDefPtr host ATTRIBUTE_UNUSED,
virCPUDefPtr cpu ATTRIBUTE_UNUSED,
bool failMessages ATTRIBUTE_UNUSED)
{
return VIR_CPU_COMPARE_IDENTICAL;
}
struct cpuArchDriver cpuDriverArm = {
.name = "arm",
.arch = archs,
.narch = ARRAY_CARDINALITY(archs),
.compare = armCompare,
.decode = armDecode,
.encode = NULL,
.free = armDataFree,
.nodeData = armNodeData,
.guestData = armGuestData,
.baseline = armBaseline,
.update = armUpdate,
.hasFeature = NULL,
};