mirror of https://gitee.com/openkylin/libvirt.git
98 lines
3.8 KiB
C
98 lines
3.8 KiB
C
/*
|
|
* virt-host-validate-qemu.c: Sanity check a QEMU hypervisor host
|
|
*
|
|
* Copyright (C) 2012 Red Hat, Inc.
|
|
*
|
|
* 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/>.
|
|
*
|
|
*/
|
|
|
|
#include <config.h>
|
|
#include <unistd.h>
|
|
|
|
#include "virt-host-validate-qemu.h"
|
|
#include "virt-host-validate-common.h"
|
|
|
|
int virHostValidateQEMU(void)
|
|
{
|
|
int ret = 0;
|
|
|
|
virHostMsgCheck("QEMU", "%s", ("for hardware virtualization"));
|
|
if (virHostValidateHasCPUFlag("svm") ||
|
|
virHostValidateHasCPUFlag("vmx")) {
|
|
virHostMsgPass();
|
|
if (virHostValidateDeviceExists("QEMU", "/dev/kvm",
|
|
VIR_HOST_VALIDATE_FAIL,
|
|
_("Check that the 'kvm-intel' or 'kvm-amd' modules are "
|
|
"loaded & the BIOS has enabled virtualization")) < 0)
|
|
ret = -1;
|
|
else if (virHostValidateDeviceAccessible("QEMU", "/dev/kvm",
|
|
VIR_HOST_VALIDATE_FAIL,
|
|
_("Check /dev/kvm is world writable or you are in "
|
|
"a group that is allowed to access it")) < 0)
|
|
ret = -1;
|
|
} else {
|
|
virHostMsgFail(VIR_HOST_VALIDATE_WARN,
|
|
_("Only emulated CPUs are available, performance will be significantly limited"));
|
|
}
|
|
|
|
if (virHostValidateDeviceExists("QEMU", "/dev/vhost-net",
|
|
VIR_HOST_VALIDATE_WARN,
|
|
_("Load the 'vhost_net' module to improve performance "
|
|
"of virtio networking")) < 0)
|
|
ret = -1;
|
|
|
|
if (virHostValidateDeviceExists("QEMU", "/dev/net/tun",
|
|
VIR_HOST_VALIDATE_FAIL,
|
|
_("Load the 'tun' module to enable networking for QEMU guests")) < 0)
|
|
ret = -1;
|
|
|
|
if (virHostValidateCGroupController("QEMU", "memory",
|
|
VIR_HOST_VALIDATE_WARN,
|
|
"MEMCG") < 0)
|
|
ret = -1;
|
|
|
|
if (virHostValidateCGroupController("QEMU", "cpu",
|
|
VIR_HOST_VALIDATE_WARN,
|
|
"CGROUP_CPU") < 0)
|
|
ret = -1;
|
|
|
|
if (virHostValidateCGroupController("QEMU", "cpuacct",
|
|
VIR_HOST_VALIDATE_WARN,
|
|
"CGROUP_CPUACCT") < 0)
|
|
ret = -1;
|
|
|
|
if (virHostValidateCGroupController("QEMU", "devices",
|
|
VIR_HOST_VALIDATE_WARN,
|
|
"CGROUP_DEVICES") < 0)
|
|
ret = -1;
|
|
|
|
if (virHostValidateCGroupController("QEMU", "net_cls",
|
|
VIR_HOST_VALIDATE_WARN,
|
|
"NET_CLS_CGROUP") < 0)
|
|
ret = -1;
|
|
|
|
if (virHostValidateCGroupController("QEMU", "blkio",
|
|
VIR_HOST_VALIDATE_WARN,
|
|
"BLK_CGROUP") < 0)
|
|
ret = -1;
|
|
|
|
if (virHostValidateIOMMU("QEMU",
|
|
VIR_HOST_VALIDATE_WARN) < 0)
|
|
ret = -1;
|
|
|
|
return ret;
|
|
}
|