[libvirt] Supporting vhost-net and macvtap in libvirt for QEMU
by Anthony Liguori
Disclaimer: I am neither an SR-IOV nor a vhost-net expert, but I've CC'd
people that are who can throw tomatoes at me for getting bits wrong :-)
I wanted to start a discussion about supporting vhost-net in libvirt.
vhost-net has not yet been merged into qemu but I expect it will be soon
so it's a good time to start this discussion.
There are two modes worth supporting for vhost-net in libvirt. The
first mode is where vhost-net backs to a tun/tap device. This is
behaves in very much the same way that -net tap behaves in qemu today.
Basically, the difference is that the virtio backend is in the kernel
instead of in qemu so there should be some performance improvement.
Current, libvirt invokes qemu with -net tap,fd=X where X is an already
open fd to a tun/tap device. I suspect that after we merge vhost-net,
libvirt could support vhost-net in this mode by just doing -net
vhost,fd=X. I think the only real question for libvirt is whether to
provide a user visible switch to use vhost or to just always use vhost
when it's available and it makes sense. Personally, I think the later
makes sense.
The more interesting invocation of vhost-net though is one where the
vhost-net device backs directly to a physical network card. In this
mode, vhost should get considerably better performance than the current
implementation. I don't know the syntax yet, but I think it's
reasonable to assume that it will look something like -net
tap,dev=eth0. The effect will be that eth0 is dedicated to the guest.
On most modern systems, there is a small number of network devices so
this model is not all that useful except when dealing with SR-IOV
adapters. In that case, each physical device can be exposed as many
virtual devices (VFs). There are a few restrictions here though. The
biggest is that currently, you can only change the number of VFs by
reloading a kernel module so it's really a parameter that must be set at
startup time.
I think there are a few ways libvirt could support vhost-net in this
second mode. The simplest would be to introduce a new tag similar to
<source network='br0'>. In fact, if you probed the device type for the
network parameter, you could probably do something like <source
network='eth0'> and have it Just Work.
Another model would be to have libvirt see an SR-IOV adapter as a
network pool whereas it handled all of the VF management. Considering
how inflexible SR-IOV is today, I'm not sure whether this is the best model.
Has anyone put any more thought into this problem or how this should be
modeled in libvirt? Michael, could you share your current thinking for
-net syntax?
--
Regards,
Anthony Liguori
1 year, 1 month
[libvirt] Libvirt multi queue support
by Naor Shlomo
Hello experts,
Could anyone please tell me if Multi Queue it fully supported in Libvirt and if so what version contains it?
Thanks,
Naor
8 years, 6 months
[libvirt] [PATCH v2 0/8] Add support for fetching statistics of completed jobs
by Jiri Denemark
Using virDomainGetJobStats, we can monitor running jobs but sometimes it
may be useful to get statistics about a job that already finished, for
example, to get the final amount of data transferred during migration or
to get an idea about total downtime. This is what the following patches
are about.
Version 2:
- changed according to John's review (see individual patches for
details)
Jiri Denemark (8):
Refactor job statistics
qemu: Avoid incrementing jobs_queued if virTimeMillisNow fails
Add support for fetching statistics of completed jobs
qemu: Silence coverity on optional migration stats
virsh: Add support for completed job stats
qemu: Transfer migration statistics to destination
qemu: Recompute downtime and total time when migration completes
qemu: Transfer recomputed stats back to source
include/libvirt/libvirt.h.in | 11 ++
src/libvirt.c | 11 +-
src/qemu/qemu_domain.c | 189 ++++++++++++++++++++++++++-
src/qemu/qemu_domain.h | 32 ++++-
src/qemu/qemu_driver.c | 130 ++++--------------
src/qemu/qemu_migration.c | 304 ++++++++++++++++++++++++++++++++++++-------
src/qemu/qemu_monitor_json.c | 10 +-
src/qemu/qemu_process.c | 9 +-
tools/virsh-domain.c | 27 +++-
tools/virsh.pod | 10 +-
10 files changed, 557 insertions(+), 176 deletions(-)
--
2.1.0
8 years, 7 months
[libvirt] securityselinuxlabeltest test fails on v1.2.5
by Scott Sullivan
I am trying to build v1.2.5-maint, however I have one test failing
causing the build to fail:
TEST: securityselinuxlabeltest
!!!. 4 FAIL
PASS: virsh-undefine
=======================================
1 of 112 tests failed
Please report to libvir-list(a)redhat.com
=======================================
make[2]: *** [check-TESTS] Error 1
make[2]: Leaving directory `/home/rpmbuild/packages/libvirt/tests'
make[1]: *** [check-am] Error 2
make[1]: Leaving directory `/home/rpmbuild/packages/libvirt/tests'
make: *** [check-recursive] Error 1
error: Bad exit status from /var/tmp/rpm-tmp.UGNUaq (%build)
Is anyone else having this problem? Im building on CentOS 6.5. Im happy
to provide any further information as needed.
9 years, 8 months
[libvirt] [PATCH] LXC: create a bind mount for sysfs when enable userns but disable netns
by Chen Hanxiao
kernel commit 7dc5dbc879bd0779924b5132a48b731a0bc04a1e
forbid us doing a fresh mount for sysfs
when enable userns but disable netns.
This patch will create a bind mount in this senario.
Signed-off-by: Chen Hanxiao <chenhanxiao(a)cn.fujitsu.com>
---
src/lxc/lxc_container.c | 44 +++++++++++++++++++++++++++++++++-----------
1 file changed, 33 insertions(+), 11 deletions(-)
diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c
index 4d89677..8a27215 100644
--- a/src/lxc/lxc_container.c
+++ b/src/lxc/lxc_container.c
@@ -815,10 +815,13 @@ static int lxcContainerSetReadOnly(void)
}
-static int lxcContainerMountBasicFS(bool userns_enabled)
+static int lxcContainerMountBasicFS(bool userns_enabled,
+ bool netns_disabled)
{
size_t i;
int rc = -1;
+ char* mnt_src = NULL;
+ int mnt_mflags;
VIR_DEBUG("Mounting basic filesystems");
@@ -826,8 +829,25 @@ static int lxcContainerMountBasicFS(bool userns_enabled)
bool bindOverReadonly;
virLXCBasicMountInfo const *mnt = &lxcBasicMounts[i];
+ /* When enable userns but disable netns, kernel will
+ * forbid us doing a new fresh mount for sysfs.
+ * So we had to do a bind mount for sysfs instead.
+ */
+ if (userns_enabled && netns_disabled &&
+ STREQ(mnt->src, "sysfs")) {
+ if (VIR_STRDUP(mnt_src, "/sys") < 0) {
+ goto cleanup;
+ }
+ mnt_mflags = MS_NOSUID|MS_NOEXEC|MS_NODEV|MS_RDONLY|MS_BIND;
+ } else {
+ if (VIR_STRDUP(mnt_src, mnt->src) < 0) {
+ goto cleanup;
+ }
+ mnt_mflags = mnt->mflags;
+ }
+
VIR_DEBUG("Processing %s -> %s",
- mnt->src, mnt->dst);
+ mnt_src, mnt->dst);
if (mnt->skipUnmounted) {
char *hostdir;
@@ -856,7 +876,7 @@ static int lxcContainerMountBasicFS(bool userns_enabled)
if (virFileMakePath(mnt->dst) < 0) {
virReportSystemError(errno,
_("Failed to mkdir %s"),
- mnt->src);
+ mnt_src);
goto cleanup;
}
@@ -867,24 +887,24 @@ static int lxcContainerMountBasicFS(bool userns_enabled)
* we mount the filesystem in read-write mode initially, and then do a
* separate read-only bind mount on top of that.
*/
- bindOverReadonly = !!(mnt->mflags & MS_RDONLY);
+ bindOverReadonly = !!(mnt_mflags & MS_RDONLY);
VIR_DEBUG("Mount %s on %s type=%s flags=%x",
- mnt->src, mnt->dst, mnt->type, mnt->mflags & ~MS_RDONLY);
- if (mount(mnt->src, mnt->dst, mnt->type, mnt->mflags & ~MS_RDONLY, NULL) < 0) {
+ mnt_src, mnt->dst, mnt->type, mnt_mflags & ~MS_RDONLY);
+ if (mount(mnt_src, mnt->dst, mnt->type, mnt_mflags & ~MS_RDONLY, NULL) < 0) {
virReportSystemError(errno,
_("Failed to mount %s on %s type %s flags=%x"),
- mnt->src, mnt->dst, NULLSTR(mnt->type),
- mnt->mflags & ~MS_RDONLY);
+ mnt_src, mnt->dst, NULLSTR(mnt->type),
+ mnt_mflags & ~MS_RDONLY);
goto cleanup;
}
if (bindOverReadonly &&
- mount(mnt->src, mnt->dst, NULL,
+ mount(mnt_src, mnt->dst, NULL,
MS_BIND|MS_REMOUNT|MS_RDONLY, NULL) < 0) {
virReportSystemError(errno,
_("Failed to re-mount %s on %s flags=%x"),
- mnt->src, mnt->dst,
+ mnt_src, mnt->dst,
MS_BIND|MS_REMOUNT|MS_RDONLY);
goto cleanup;
}
@@ -893,6 +913,7 @@ static int lxcContainerMountBasicFS(bool userns_enabled)
rc = 0;
cleanup:
+ VIR_FREE(mnt_src);
VIR_DEBUG("rc=%d", rc);
return rc;
}
@@ -1643,7 +1664,8 @@ static int lxcContainerSetupPivotRoot(virDomainDefPtr vmDef,
goto cleanup;
/* Mounts the core /proc, /sys, etc filesystems */
- if (lxcContainerMountBasicFS(vmDef->idmap.nuidmap) < 0)
+ if (lxcContainerMountBasicFS(vmDef->idmap.nuidmap,
+ !vmDef->nnets) < 0)
goto cleanup;
/* Ensure entire root filesystem (except /.oldroot) is readonly */
--
1.9.0
9 years, 9 months
[libvirt] [PATCH] Fix reporting of i/o errors by iohelper process
by Jason J. Herne
From: "Jason J. Herne" <jjherne(a)us.ibm.com>
libvirt_iohelper is a helper process that is exec'ed and used to handle I/O
during a Qemu managed save operation. Due to a missing call to
virFileWrapperFdClose, all I/O error messages reported by iohelper are lost.
This patch adds a call to virFileWrapperFdClose to the cleanup phase of
qemuDomainSaveMemory.
This patch also modifies virFileWrapperFdClose such that errors are only
reported when the length of the err_msg buffer is > 0. Before now, the
existence of the buffer would trigger error reporting in virFileWrapperFdClose.
Signed-off-by: Jason J. Herne <jjherne(a)us.ibm.com>
---
src/qemu/qemu_driver.c | 1 +
src/util/virfile.c | 2 +-
2 files changed, 2 insertions(+), 1 deletion(-)
diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c
index ecccf6c..8d78805 100644
--- a/src/qemu/qemu_driver.c
+++ b/src/qemu/qemu_driver.c
@@ -3015,6 +3015,7 @@ qemuDomainSaveMemory(virQEMUDriverPtr driver,
cleanup:
VIR_FORCE_CLOSE(fd);
+ virFileWrapperFdClose(wrapperFd);
virFileWrapperFdFree(wrapperFd);
VIR_FREE(xml);
diff --git a/src/util/virfile.c b/src/util/virfile.c
index 463064c..813b4f5 100644
--- a/src/util/virfile.c
+++ b/src/util/virfile.c
@@ -322,7 +322,7 @@ virFileWrapperFdClose(virFileWrapperFdPtr wfd)
return 0;
ret = virCommandWait(wfd->cmd, NULL);
- if (wfd->err_msg)
+ if (wfd->err_msg && strlen(wfd->err_msg))
VIR_WARN("iohelper reports: %s", wfd->err_msg);
return ret;
--
1.8.3.2
9 years, 10 months
[libvirt] [libvirt-test-API][PATCH V4 0/4] Add test case for virconnect V4
by Jincheng Miao
V3->V4:
Remove getSysinfo() check for lxc connection.
Fix minor problems.
V2->V3:
Refactor connection_nodeinfo.
Change the way of getting version number.
V1->V2:
Seperate check functions in each test case.
Improve log message.
V1:
Add test case for virconnect
Add test case for nodeinfo of virconnect
Add connection_version test case
Add conf file of virconnect test
jmiao (4):
Add test case for virConnect
Add connection_nodeinfo test case
Add connection_version test case
Add test_connection.conf
cases/test_connection.conf | 31 +++++++
repos/virconn/__init__.py | 0
repos/virconn/connection_attributes.py | 92 +++++++++++++++++++++
repos/virconn/connection_nodeinfo.py | 146 +++++++++++++++++++++++++++++++++
repos/virconn/connection_version.py | 119 +++++++++++++++++++++++++++
5 files changed, 388 insertions(+)
create mode 100644 cases/test_connection.conf
create mode 100644 repos/virconn/__init__.py
create mode 100644 repos/virconn/connection_attributes.py
create mode 100644 repos/virconn/connection_nodeinfo.py
create mode 100644 repos/virconn/connection_version.py
--
1.8.3.1
10 years
[libvirt] [PATCH v3] network: Bring netdevs online later
by Matthew Rosato
Currently, MAC registration occurs during device creation, which is
early enough that, during live migration, you end up with duplicate
MAC addresses on still-running source and target devices, even though
the target device isn't actually being used yet.
This patch proposes to defer MAC registration until right before
the guest can actually use the device -- In other words, right
before starting guest CPUs.
Signed-off-by: Matthew Rosato <mjrosato(a)linux.vnet.ibm.com>
---
Associated BZ: https://bugzilla.redhat.com/show_bug.cgi?id=1081461
Changes for v3:
* Some minor formatting fixes.
* in qemuNetworkIfaceConnect, set VIR_NETDEV_TAP_CREATE_IFUP
unconditionally.
* in qemuDomainAttachNetDevice, call qemuInterfaceStartDevice only for
VIR_DOMAIN_NET_TYPE_DIRECT, _BRIDGE and _NETWORK.
* in qemuProcessStartCPUs, use 'reason' to determine whether or not
qemuInterfaceStartDevices needs to be called. Basically, it needs
to be called for any reason that the system would be initializing
(or re-initializing).
src/Makefile.am | 3 +-
src/conf/domain_conf.h | 2 ++
src/lxc/lxc_process.c | 4 ++-
src/qemu/qemu_command.c | 3 ++
src/qemu/qemu_hotplug.c | 8 +++++
src/qemu/qemu_interface.c | 78 +++++++++++++++++++++++++++++++++++++++++++
src/qemu/qemu_interface.h | 32 ++++++++++++++++++
src/qemu/qemu_process.c | 7 ++++
src/util/virnetdevmacvlan.c | 8 +++--
src/util/virnetdevmacvlan.h | 2 ++
10 files changed, 142 insertions(+), 5 deletions(-)
create mode 100644 src/qemu/qemu_interface.c
create mode 100644 src/qemu/qemu_interface.h
diff --git a/src/Makefile.am b/src/Makefile.am
index fa741a8..035120e 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -703,7 +703,8 @@ QEMU_DRIVER_SOURCES = \
qemu/qemu_monitor_text.h \
qemu/qemu_monitor_json.c \
qemu/qemu_monitor_json.h \
- qemu/qemu_driver.c qemu/qemu_driver.h
+ qemu/qemu_driver.c qemu/qemu_driver.h \
+ qemu/qemu_interface.c qemu/qemu_interface.h
XENAPI_DRIVER_SOURCES = \
xenapi/xenapi_driver.c xenapi/xenapi_driver.h \
diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h
index 0862bd7..5f328cf 100644
--- a/src/conf/domain_conf.h
+++ b/src/conf/domain_conf.h
@@ -951,6 +951,8 @@ struct _virDomainNetDef {
virNetDevBandwidthPtr bandwidth;
virNetDevVlan vlan;
int linkstate;
+ /* vmOp value saved if deferring interface start */
+ virNetDevVPortProfileOp vmOp;
};
/* Used for prefix of ifname of any network name generated dynamically
diff --git a/src/lxc/lxc_process.c b/src/lxc/lxc_process.c
index ed30c37..b2256c0 100644
--- a/src/lxc/lxc_process.c
+++ b/src/lxc/lxc_process.c
@@ -300,6 +300,7 @@ char *virLXCProcessSetupInterfaceDirect(virConnectPtr conn,
virNetDevBandwidthPtr bw;
virNetDevVPortProfilePtr prof;
virLXCDriverConfigPtr cfg = virLXCDriverGetConfig(driver);
+ unsigned int macvlan_create_flags = VIR_NETDEV_MACVLAN_CREATE_IFUP;
/* XXX how todo bandwidth controls ?
* Since the 'net-ifname' is about to be moved to a different
@@ -336,7 +337,8 @@ char *virLXCProcessSetupInterfaceDirect(virConnectPtr conn,
&res_ifname,
VIR_NETDEV_VPORT_PROFILE_OP_CREATE,
cfg->stateDir,
- virDomainNetGetActualBandwidth(net), 0) < 0)
+ virDomainNetGetActualBandwidth(net),
+ macvlan_create_flags) < 0)
goto cleanup;
ret = res_ifname;
diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c
index e5270bd..229dff4 100644
--- a/src/qemu/qemu_command.c
+++ b/src/qemu/qemu_command.c
@@ -199,6 +199,9 @@ qemuPhysIfaceConnect(virDomainDefPtr def,
net->ifname = res_ifname;
}
+ /* Save vport profile op for later */
+ net->vmOp = vmop;
+
virObjectUnref(cfg);
return rc;
}
diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c
index 7bc19cd..530e6da 100644
--- a/src/qemu/qemu_hotplug.c
+++ b/src/qemu/qemu_hotplug.c
@@ -30,6 +30,7 @@
#include "qemu_domain.h"
#include "qemu_command.h"
#include "qemu_hostdev.h"
+#include "qemu_interface.h"
#include "domain_audit.h"
#include "domain_nwfilter.h"
#include "virlog.h"
@@ -922,6 +923,8 @@ int qemuDomainAttachNetDevice(virConnectPtr conn,
priv->qemuCaps, tapfd, &tapfdSize) < 0)
goto cleanup;
iface_connected = true;
+ /* Set device online immediately */
+ qemuInterfaceStartDevice(net);
if (qemuOpenVhostNet(vm->def, net, priv->qemuCaps, vhostfd, &vhostfdSize) < 0)
goto cleanup;
} else if (actualType == VIR_DOMAIN_NET_TYPE_DIRECT) {
@@ -937,6 +940,8 @@ int qemuDomainAttachNetDevice(virConnectPtr conn,
VIR_NETDEV_VPORT_PROFILE_OP_CREATE)) < 0)
goto cleanup;
iface_connected = true;
+ /* Set device online immediately */
+ qemuInterfaceStartDevice(net);
if (qemuOpenVhostNet(vm->def, net, priv->qemuCaps, vhostfd, &vhostfdSize) < 0)
goto cleanup;
} else if (actualType == VIR_DOMAIN_NET_TYPE_ETHERNET) {
@@ -2070,6 +2075,9 @@ qemuDomainChangeNet(virQEMUDriverPtr driver,
goto cleanup;
}
+ /* Set device online immediately */
+ qemuInterfaceStartDevice(newdev);
+
newType = virDomainNetGetActualType(newdev);
if (newType == VIR_DOMAIN_NET_TYPE_HOSTDEV) {
diff --git a/src/qemu/qemu_interface.c b/src/qemu/qemu_interface.c
new file mode 100644
index 0000000..dccfcc4
--- /dev/null
+++ b/src/qemu/qemu_interface.c
@@ -0,0 +1,78 @@
+/*
+ * qemu_interface.c: QEMU interface management
+ *
+ * Copyright IBM Corp. 2014
+ *
+ * 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:
+ * Matthew J. Rosato <mjrosato(a)linux.vnet.ibm.com>
+ */
+
+#include <config.h>
+
+#include "qemu_interface.h"
+#include "virnetdev.h"
+#include "virnetdevtap.h"
+#include "virnetdevmacvlan.h"
+#include "virnetdevvportprofile.h"
+
+/**
+ * qemuInterfaceStartDevice:
+ * @net: net device to start
+ *
+ * Based upon the type of device provided, perform the appropriate
+ * work to set the device online.
+ */
+void
+qemuInterfaceStartDevice(virDomainNetDefPtr net)
+{
+ switch (virDomainNetGetActualType(net)) {
+ case VIR_DOMAIN_NET_TYPE_BRIDGE:
+ case VIR_DOMAIN_NET_TYPE_NETWORK:
+ if (virNetDevSetOnline(net->ifname, true) < 0) {
+ ignore_value(virNetDevTapDelete(net->ifname));
+ }
+ break;
+ case VIR_DOMAIN_NET_TYPE_DIRECT:
+ if (virNetDevSetOnline(net->ifname, true) < 0) {
+ ignore_value(virNetDevVPortProfileDisassociate(net->ifname,
+ virDomainNetGetActualVirtPortProfile(net),
+ &net->mac,
+ virDomainNetGetActualDirectDev(net),
+ -1,
+ net->vmOp));
+ }
+ break;
+ }
+}
+
+/**
+ * qemuInterfaceStartDevices:
+ * @def: domain definition
+ *
+ * Set all ifaces associated with this domain to the online state.
+ */
+void
+qemuInterfaceStartDevices(virDomainDefPtr def)
+{
+ size_t i;
+
+ for (i = 0; i < def->nnets; i++) {
+ qemuInterfaceStartDevice(def->nets[i]);
+ }
+
+ return;
+}
diff --git a/src/qemu/qemu_interface.h b/src/qemu/qemu_interface.h
new file mode 100644
index 0000000..5810cda
--- /dev/null
+++ b/src/qemu/qemu_interface.h
@@ -0,0 +1,32 @@
+/*
+ * qemu_interface.h: QEMU interface management
+ *
+ * Copyright IBM Corp. 2014
+ *
+ * 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:
+ * Matthew J. Rosato <mjrosato(a)linux.vnet.ibm.com>
+ */
+
+#ifndef __QEMU_INTERFACE_H__
+# define __QEMU_INTERFACE_H__
+
+# include "domain_conf.h"
+
+void qemuInterfaceStartDevice(virDomainNetDefPtr net);
+void qemuInterfaceStartDevices(virDomainDefPtr def);
+
+#endif /* __QEMU_INTERFACE_H__ */
diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c
index f391743..3fc50a0 100644
--- a/src/qemu/qemu_process.c
+++ b/src/qemu/qemu_process.c
@@ -42,6 +42,7 @@
#include "qemu_hostdev.h"
#include "qemu_hotplug.h"
#include "qemu_migration.h"
+#include "qemu_interface.h"
#include "cpu/cpu.h"
#include "datatypes.h"
@@ -2947,6 +2948,12 @@ qemuProcessStartCPUs(virQEMUDriverPtr driver, virDomainObjPtr vm,
qemuDomainObjPrivatePtr priv = vm->privateData;
virQEMUDriverConfigPtr cfg = virQEMUDriverGetConfig(driver);
+ /* Bring up netdevs before starting CPUs */
+ if (reason != VIR_DOMAIN_RUNNING_UNPAUSED &&
+ reason != VIR_DOMAIN_RUNNING_SAVE_CANCELED) {
+ qemuInterfaceStartDevices(vm->def);
+ }
+
VIR_DEBUG("Using lock state '%s'", NULLSTR(priv->lockState));
if (virDomainLockProcessResume(driver->lockManager, cfg->uri,
vm, priv->lockState) < 0) {
diff --git a/src/util/virnetdevmacvlan.c b/src/util/virnetdevmacvlan.c
index c83341c..1edf3ae 100644
--- a/src/util/virnetdevmacvlan.c
+++ b/src/util/virnetdevmacvlan.c
@@ -902,9 +902,11 @@ int virNetDevMacVLanCreateWithVPortProfile(const char *tgifname,
goto link_del_exit;
}
- if (virNetDevSetOnline(cr_ifname, true) < 0) {
- rc = -1;
- goto disassociate_exit;
+ if (flags & VIR_NETDEV_MACVLAN_CREATE_IFUP) {
+ if (virNetDevSetOnline(cr_ifname, true) < 0) {
+ rc = -1;
+ goto disassociate_exit;
+ }
}
if (flags & VIR_NETDEV_MACVLAN_CREATE_WITH_TAP) {
diff --git a/src/util/virnetdevmacvlan.h b/src/util/virnetdevmacvlan.h
index 41aa4e2..41b4014 100644
--- a/src/util/virnetdevmacvlan.h
+++ b/src/util/virnetdevmacvlan.h
@@ -44,6 +44,8 @@ typedef enum {
VIR_NETDEV_MACVLAN_CREATE_NONE = 0,
/* Create with a tap device */
VIR_NETDEV_MACVLAN_CREATE_WITH_TAP = 1 << 0,
+ /* Bring the interface up */
+ VIR_NETDEV_MACVLAN_CREATE_IFUP = 1 << 1,
} virNetDevMacVLanCreateFlags;
int virNetDevMacVLanCreate(const char *ifname,
--
1.7.9.5
10 years
[libvirt] ANNOUNCE: libguestfs 1.26 released
by Richard W.M. Jones
I'm pleased to announce libguestfs 1.26, a library and set of tools
for accessing and modifying virtual machine disk images. This release
took more than 6 months of work by a considerable number of people,
and has many new features (see release notes below).
You can get libguestfs 1.26 here:
Main website: http://libguestfs.org/
Source: http://libguestfs.org/download/1.26-stable/
You will also need latest supermin from here:
http://libguestfs.org/download/supermin/
Fedora 20/21: http://koji.fedoraproject.org/koji/packageinfo?packageID=8391
It will appear as an update for F20 in about a week.
Debian/experimental coming soon, see:
https://packages.debian.org/experimental/libguestfs0
The Fedora and Debian packages have split dependencies so you can
download just the features you need.
>From http://libguestfs.org/guestfs-release-notes.1.html :
RELEASE NOTES FOR LIBGUESTFS 1.26
New features
Tools
virt-customize(1) is a new tool for customizing virtual machine disk
images. It lets you install packages, edit configuration files, run
scripts, set passwords and so on. virt-builder(1) and virt-sysprep(1)
use virt-customize, and command line options across all these tools are
now identical.
virt-diff(1) is a new tool for showing the differences between the
filesystems of two virtual machines. It is mainly useful when showing
what files have been changed between snapshots.
virt-builder(1) has been greatly enhanced. There are many more ways to
customize the virtual machine. It can pull templates from multiple
repositories. A parallelized internal xzcat implementation speeds up
template decompression. Virt-builder uses an optimizing planner to
choose the fastest way to build the VM. It is now easier to use
virt-builder from other programs. Internationalization support has been
added to metadata. More efficient SELinux relabelling of files. Can
build guests for multiple architectures. Error messages have been
improved. (Pino Toscano)
virt-sparsify(1) has a new --in-place option. This sparsifies an image
in place (without copying it) and is also much faster. (Lots of help
provided by Paolo Bonzini)
virt-sysprep(1) can delete and scrub files under user control. You can
lock user accounts or set random passwords on accounts. Can remove more
log files. Can unsubscribe a guest from Red Hat Subscription Manager.
New flexible way to enable and disable operations. (Wanlong Gao, Pino
Toscano)
virt-win-reg(1) allows you to use URIs to specify remote disk images.
virt-format(1) can now pass the extra space that it recovers back to
the host.
guestfish(1) has additional environment variables to give fine control
over the ><fs> prompt. Guestfish reads its (rarely used) configuration
file in a different order now so that local settings override global
settings. (Pino Toscano)
virt-make-fs(1) was rewritten in C, but is unchanged in terms of
functionality and command line usage.
Language bindings
The OCaml bindings have a new Guestfs.Errno module, used to check the
error number returned by Guestfs.last_errno.
PHP tests now work. (Pino Toscano)
Inspection
Inspection can recognize Debian live images.
Architectures
ARMv7 (32 bit) now supports KVM acceleration.
Aarch64 (ARM 64 bit) is supported, but the appliance part does not work
yet.
PPC64 support has been fixed and enhanced.
Security
Denial of service when inspecting disk images with corrupt btrfs
volumes
It was possible to crash libguestfs (and programs that use libguestfs
as a library) by presenting a disk image containing a corrupt btrfs
volume.
This was caused by a NULL pointer dereference causing a denial of
service, and is not thought to be exploitable any further.
See commit d70ceb4cbea165c960710576efac5a5716055486 for the fix. This
fix is included in libguestfs stable branches ≥ 1.26.0, ≥ 1.24.6 and
≥ 1.22.8, and also in RHEL ≥ 7.0. Earlier versions of libguestfs are
not vulnerable.
Better generation of random root passwords and random seeds
When generating random root passwords and random seeds, two bugs were
fixed which are possibly security related. Firstly we no longer read
excessive bytes from /dev/urandom (most of which were just thrown
away). Secondly we changed the code to avoid modulo bias. These
issues were not thought to be exploitable. (Both changes suggested by
Edwin Török)
API
GUID parameters are now validated when they are passed to API calls,
whereas previously you could have passed any string. (Pino Toscano)
New APIs
guestfs_add_drive_opts: new discard parameter
The new discard parameter allows fine-grained control over
discard/trim support for a particular disk. This allows the host file
to become more sparse (or thin-provisioned) when you delete files or
issue the guestfs_fstrim API call.
guestfs_add_domain: new parameters: cachemode, discard
These parameters are passed through when adding the domain's disks.
guestfs_blkdiscard
Discard all blocks on a guestfs device. Combined with the discard
parameter above, this makes the host file sparse.
guestfs_blkdiscardzeroes
Test if discarded blocks read back as zeroes.
guestfs_compare_*
guestfs_copy_*
For each struct returned through the API, libguestfs now generates
guestfs_compare_* and guestfs_copy_* functions to allow you to
compare and copy structs.
guestfs_copy_attributes
Copy attributes (like permissions, xattrs, ownership) from one file
to another. (Pino Toscano)
guestfs_disk_create
A flexible API for creating empty disk images from scratch. This
avoids the need to call out to external programs like qemu-img(1).
guestfs_get_backend_settings
guestfs_set_backend_settings
Per-backend settings (can also be set via the environment variable
LIBGUESTFS_BACKEND_SETTINGS). The main use for this is forcing TCG
mode in the qemu-based backends, for example:
export LIBGUESTFS_BACKEND=direct
export LIBGUESTFS_BACKEND_SETTINGS=force_tcg
guestfs_part_get_name
Get the label or name of a partition (for GPT disk images).
Build changes
The following extra packages are required to build libguestfs 1.26:
supermin ≥ 5
Supermin version 5 is required to build this version of libguestfs.
flex, bison
Virt-builder now uses a real parser to parse its metadata file, so
these tools are required.
xz
This is now a required build dependency, where previously it was (in
theory) optional.
Internals
PO message extraction rewritten to be more robust. (Pino Toscano)
podwrapper gives an error if the --insert or --verbatim argument
pattern is not found.
Libguestfs now passes the qemu -enable-fips option to enable FIPS, if
qemu supports it.
./configure --without-qemu can be used if you don't want to specify a
default hypervisor.
Copy-on-write [COW] overlays, used for example for read-only drives,
are now created through an internal backend API (.create_cow_overlay).
Libvirt backend uses some funky C macros to generate XML. These are
simpler and safer.
The ChangeLog file format has changed. It is now just the same as git
log, instead of using a custom format.
Appliance start-up has changed:
* The libguestfs appliance now initializes LVM the same way as it is
done on physical machines.
* The libguestfs appliance does not write an empty string to
/proc/sys/kernel/hotplug when starting up.
Note that you must configure your kernel to have
CONFIG_UEVENT_HELPER_PATH="" otherwise you will get strange LVM
errors (this applies as much to any Linux machine, not just
libguestfs). (Peter Rajnoha)
Libguestfs can now be built on arches that have ocamlc(1) but not
ocamlopt(1). (Hilko Bengen, Olaf Hering)
You cannot use ./configure --disable-daemon --enable-appliance. It made
no sense anyway. Now it is expressly forbidden by the configure script.
The packagelist file uses m4 for macro expansion instead of cpp.
Bugs fixed
https://bugzilla.redhat.com/1073906
java bindings inspect_list_applications2 throws
java.lang.ArrayIndexOutOfBoundsException:
https://bugzilla.redhat.com/1063374
[RFE] enable subscription manager clean or unregister operation to
sysprep
https://bugzilla.redhat.com/1060404
virt-resize does not preserve GPT partition names
https://bugzilla.redhat.com/1057504
mount-local should give a clearer error if root is not mounted
https://bugzilla.redhat.com/1056290
virt-sparsify overwrites block devices if used as output files
https://bugzilla.redhat.com/1055452
libguestfs: error: invalid backend: appliance
https://bugzilla.redhat.com/1054761
guestfs_pvs prints "unknown device" if a physical volume is missing
https://bugzilla.redhat.com/1053847
Recommended default clock/timer settings
https://bugzilla.redhat.com/1046509
ruby-libguestfs throws "expecting 0 or 1 arguments" on
Guestfs::Guestfs.new
https://bugzilla.redhat.com/1045450
Cannot inspect cirros 0.3.1 disk image fully
https://bugzilla.redhat.com/1045033
LIBVIRT_DEFAULT_URI=qemu:///system breaks libguestfs
https://bugzilla.redhat.com/1044585
virt-builder network (eg. --install) doesn't work if resolv.conf sets
nameserver 127.0.0.1
https://bugzilla.redhat.com/1044014
When SSSD is installed, libvirt configuration requires
authentication, but not clear to user
https://bugzilla.redhat.com/1039995
virt-make-fs fails making fat/vfat whole disk: Device partition
expected, not making filesystem on entire device '/dev/sda' (use -I
to override)
https://bugzilla.redhat.com/1039540
virt-sysprep to delete more logfiles
https://bugzilla.redhat.com/1033207
RFE: libguestfs inspection does not recognize Free4NAS live CD
https://bugzilla.redhat.com/1028660
RFE: virt-sysprep/virt-builder should have an option to lock a user
account
https://bugzilla.redhat.com/1026688
libguestfs fails examining libvirt guest with ceph drives: rbd: image
name must begin with a '/'
https://bugzilla.redhat.com/1022431
virt-builder fails if $HOME/.cache doesn't exist
https://bugzilla.redhat.com/1022184
libguestfs: do not use versioned jar file
https://bugzilla.redhat.com/1020806
All libguestfs LVM operations fail on Debian/Ubuntu
https://bugzilla.redhat.com/1008417
Need update helpout of part-set-gpt-type
https://bugzilla.redhat.com/953907
virt-sysprep does not correctly set the hostname on Debian/Ubuntu
https://bugzilla.redhat.com/923355
guestfish prints literal "\n" in error messages
https://bugzilla.redhat.com/660687
guestmount: "touch" command fails: touch: setting times of
`timestamp': Invalid argument
https://bugzilla.redhat.com/593511
[RFE] function to get partition name
https://bugzilla.redhat.com/563450
list-devices returns devices of different types out of order
---
Rich.
--
Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones
virt-p2v converts physical machines to virtual machines. Boot with a
live CD or over the network (PXE) and turn machines into KVM guests.
http://libguestfs.org/virt-v2v
10 years
