int virHostValidateQEMU(void)
{
virBitmapPtr flags;
int ret = 0;
bool hasHwVirt = false;
virHostMsgCheck("QEMU", "%s", _("for hardware virtualization"));
if (!(flags = virHostValidateGetCPUFlags()))
return -1;
switch (virArchFromHost()) {
case VIR_ARCH_I686:
case VIR_ARCH_X86_64:
if (virBitmapIsBitSet(flags, VIR_HOST_VALIDATE_CPU_FLAG_SVM) ||
virBitmapIsBitSet(flags, VIR_HOST_VALIDATE_CPU_FLAG_VMX))
hasHwVirt = true;
break;
case VIR_ARCH_S390:
case VIR_ARCH_S390X:
if (virBitmapIsBitSet(flags, VIR_HOST_VALIDATE_CPU_FLAG_SIE))
hasHwVirt = true;
break;
default:
hasHwVirt = false;
}
if (hasHwVirt) {
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"));
}
virBitmapFree(flags);
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", "cpuset",
VIR_HOST_VALIDATE_WARN,
"CPUSETS") < 0)
ret = -1;
if (virHostValidateCGroupController("QEMU", "devices",
VIR_HOST_VALIDATE_WARN,
"CGROUP_DEVICES") < 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;
}
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;
}