[libvirt] PATCH: 0/3: Run QEMU guests within a CGroup
by Daniel P. Berrange
Recent Linux kernels have a new concept of 'CGroups' which is a way to
group tasks on the system and apply policy to them as a whole. We already
use this in the LXC container driver, to control total memory usage of
things runing within a container.
This patch series is a proof of concept to make use of CGroups in the
QEMU driver. The idea is that we have a 3 level cgroup hierarchy
- Top level; contains the libvirtd daemon itself
- 2nd level: one per libvirt driver, but dos not contain any
processes.
- 3rd level: one per guest VM. Contains the QEMU process
The host admin can do control on the top level and 2nd level to set an
overall system policy. libvirt will then provide APIs / capabilities to
control individual VMs policy.
Daniel
--
|: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :|
|: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :|
|: http://autobuild.org -o- http://search.cpan.org/~danberr/ :|
|: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
15 years, 5 months
[libvirt] (no subject)
by Eduardo Otubo
Hello all,
I've been working on a libvirt extension to manage IBM's Power VMs
(LPARs). The Power systems are managed through management console
referred to as the HMC or using a management partition (IVM). Both HMC
and IVM runs an SSH, then you can reach it via command line, and an HTTP
server, then you can reach it via web browser.
The protocol between the console and the partition (LPAR) is not
disclosed, therefore I propose the driver to execute commands remoetly
over an SSH connection to the consoles to manage IBM LPARs.
The patch attached is the first scratch of the driver that will interact
with HMC over a SSH connection. The URI model that is
used in virsh command line is:
virsh --conect phyp://$user@$server
Some known issues are:
* Next step is to make the URI like this: phyp://$user@
$HMC/@managed_system. Almost finished. What it takes now is
$server = $HMC = $managed_system.
* Next features in my TODO list are "resume", "stop" and "reboot" the
LPAR.
Any comments are welcome.
Thanks,
--
Eduardo Otubo
Software Engineer
Linux Technology Center
IBM Systems & Technology Group
Mobile: +55 19 8135 0885
otubo(a)linux.vnet.ibm.com
15 years, 7 months
[libvirt] PATCH: Don't reset / detach host PCI devices in test scripts !
by Daniel P. Berrange
The PCI passthrough patches made it so that qemudBuildCommandLine() would
actually try to detach your host devices & reset them. Most definitely not
what you want when running this via a test case!
This patch moves the host device management out into a separate method,
so that qemudBuildCommandLine() doesn't do anything except safely build
the command line.
Daniel
qemu_conf.c | 46 -----------------------------------
qemu_driver.c | 76 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
2 files changed, 76 insertions(+), 46 deletions(-)
Index: src/qemu_conf.c
===================================================================
RCS file: /data/cvs/libvirt/src/qemu_conf.c,v
retrieving revision 1.133
diff -u -p -u -p -r1.133 qemu_conf.c
--- src/qemu_conf.c 2 Mar 2009 20:22:35 -0000 1.133
+++ src/qemu_conf.c 2 Mar 2009 20:47:36 -0000
@@ -47,7 +47,6 @@
#include "datatypes.h"
#include "xml.h"
#include "nodeinfo.h"
-#include "pci.h"
#define VIR_FROM_THIS VIR_FROM_QEMU
@@ -1395,52 +1394,7 @@ int qemudBuildCommandLine(virConnectPtr
ADD_ARG_LIT("-pcidevice");
ADD_ARG_LIT(pcidev);
VIR_FREE(pcidev);
-
- if (hostdev->managed) {
- pciDevice *dev = pciGetDevice(conn,
- hostdev->source.subsys.u.pci.domain,
- hostdev->source.subsys.u.pci.bus,
- hostdev->source.subsys.u.pci.slot,
- hostdev->source.subsys.u.pci.function);
- if (!dev)
- goto error;
-
- if (pciDettachDevice(conn, dev) < 0) {
- pciFreeDevice(conn, dev);
- goto error;
- }
-
- pciFreeDevice(conn, dev);
- } /* else {
- XXX validate that non-managed device isn't in use, eg
- by checking that device is either un-bound, or bound
- to pci-stub.ko
- } */
}
-
- }
-
- /* Now that all the PCI hostdevs have be dettached, we can reset them */
- for (i = 0 ; i < vm->def->nhostdevs ; i++) {
- virDomainHostdevDefPtr hostdev = vm->def->hostdevs[i];
- pciDevice *dev;
-
- if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS ||
- hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI)
- continue;
-
- dev = pciGetDevice(conn,
- hostdev->source.subsys.u.pci.domain,
- hostdev->source.subsys.u.pci.bus,
- hostdev->source.subsys.u.pci.slot,
- hostdev->source.subsys.u.pci.function);
- if (!dev)
- goto error;
-
- if (pciResetDevice(conn, dev) < 0)
- goto error;
-
- pciFreeDevice(conn, dev);
}
if (migrateFrom) {
Index: src/qemu_driver.c
===================================================================
RCS file: /data/cvs/libvirt/src/qemu_driver.c,v
retrieving revision 1.208
diff -u -p -u -p -r1.208 qemu_driver.c
--- src/qemu_driver.c 2 Mar 2009 17:39:43 -0000 1.208
+++ src/qemu_driver.c 2 Mar 2009 20:47:36 -0000
@@ -1133,6 +1133,79 @@ static int qemudNextFreeVNCPort(struct q
return -1;
}
+static int qemuPrepareHostDevices(virConnectPtr conn,
+ virDomainDefPtr def) {
+ int i;
+
+ /* We have to use 2 loops here. *All* devices must
+ * be detached before we reset any of them, because
+ * in some cases you have to reset the whole PCI bus,
+ * which impacts all devices on it
+ */
+
+ for (i = 0 ; i < def->nhostdevs ; i++) {
+ virDomainHostdevDefPtr hostdev = def->hostdevs[i];
+
+ if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS)
+ continue;
+ if (hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI)
+ continue;
+
+ if (!hostdev->managed) {
+ pciDevice *dev = pciGetDevice(conn,
+ hostdev->source.subsys.u.pci.domain,
+ hostdev->source.subsys.u.pci.bus,
+ hostdev->source.subsys.u.pci.slot,
+ hostdev->source.subsys.u.pci.function);
+ if (!dev)
+ goto error;
+
+ if (pciDettachDevice(conn, dev) < 0) {
+ pciFreeDevice(conn, dev);
+ goto error;
+ }
+
+ pciFreeDevice(conn, dev);
+ } /* else {
+ XXX validate that non-managed device isn't in use, eg
+ by checking that device is either un-bound, or bound
+ to pci-stub.ko
+ } */
+ }
+
+ /* Now that all the PCI hostdevs have be dettached, we can safely
+ * reset them */
+ for (i = 0 ; i < def->nhostdevs ; i++) {
+ virDomainHostdevDefPtr hostdev = def->hostdevs[i];
+ pciDevice *dev;
+
+ if (hostdev->mode != VIR_DOMAIN_HOSTDEV_MODE_SUBSYS)
+ continue;
+ if (hostdev->source.subsys.type != VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI)
+ continue;
+
+ dev = pciGetDevice(conn,
+ hostdev->source.subsys.u.pci.domain,
+ hostdev->source.subsys.u.pci.bus,
+ hostdev->source.subsys.u.pci.slot,
+ hostdev->source.subsys.u.pci.function);
+ if (!dev)
+ goto error;
+
+ if (pciResetDevice(conn, dev) < 0) {
+ pciFreeDevice(conn, dev);
+ goto error;
+ }
+
+ pciFreeDevice(conn, dev);
+ }
+
+ return 0;
+
+error:
+ return -1;
+}
+
static virDomainPtr qemudDomainLookupByName(virConnectPtr conn,
const char *name);
@@ -1210,6 +1283,9 @@ static int qemudStartVMDaemon(virConnect
return -1;
}
+ if (qemuPrepareHostDevices(conn, vm->def) < 0)
+ return -1;
+
vm->def->id = driver->nextvmid++;
if (qemudBuildCommandLine(conn, driver, vm,
qemuCmdFlags, &argv, &progenv,
--
|: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :|
|: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :|
|: http://autobuild.org -o- http://search.cpan.org/~danberr/ :|
|: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
15 years, 7 months
[libvirt] Multpile network interfaces have same MAC address
by David Mueller
I remember seeing this problem before, but I can't remember what the
resolution was, nor can I find a discussion of the issue in
the list archives or Bugzilla.
I've had my setup working for a while now, on both Fedora 8 and Fedora 10.
Now I'm trying to get it to work with CentOS 5 and
running into an old bug. My guest VM has multiple virtual network
interfaces, with the MAC address defined in the XML file used to
define the VM. However, I'm seeing each network interface getting the
same MAC addrss (the last one defined in the XML file) on
all if the interfaces when I run ifconfig in the guest.
Was there a workaround for this, or do I need to upgrade libvirt? CentOS
5.2 is what I'm working with; they haven't released 5.3
yet so I don't know if that will have a newer version.
# rpm -qa libvirt
libvirt-0.3.3-7.el5
# virsh version
Compiled against library: libvir 0.3.3
Using library: libvir 0.3.3
Using API: QEMU 0.3.3
Running hypervisor: QEMU 0.9.1
- David
15 years, 8 months
[libvirt] How to prevent libvirt from adding iptables rules?
by Mariano Absatz
Hi,
I'm new to libvirt but not a complete neophite.
I'm using libvirt and kvm in ubuntu with "vmbuilder".
I'm creating a couple of VMs inside a host that is directly connected to
internet with a public routeable address. Since I only have one public
address, I won't use bridging.
I'm using shorewall (www.shorewall.net) to configure my iptables rules.
I intend to use DNAT to route specific ports in the host to one or other VM.
With standard masquerading, I give the VMs access to the outside world.
At first I used the 'default' network (with a different rfc1918
network)... everything was kinda working until I rebooted the host... at
that point I lost connectivity between the outside world and the VMs.
From inside the host I had no trouble connecting to the VMs.
If I restarted shorewall (which actually cleans all iptables rules and
regenerate them according to its configuration) everything works fine.
After sending a report and some debugging in the shorewall mailing list,
it was clear that libvirt was adding rules to iptables.
After reading a bit
(http://libvirt.org/formatnetwork.html#examplesPrivate) I created a new
network called "isolated". I stopped default (and disabled its
autostart), and defined and started isolated.
This is the content of isolated.xml:
<network>
<name>isolated</name>
<uuid>51cffbcc-88f5-4edc-a81c-1765c1045691</uuid>
<bridge name='virbr%d' stp='on' forwardDelay='0' />
<ip address='10.3.14.1' netmask='255.255.255.0'>
<dhcp>
<range start='10.3.14.128' end='10.3.14.254' />
</dhcp>
</ip>
</network>
I modified my VMs to use isolated rather than default, but rules keep
being added to iptables when libvirt-bin is started.
Is there a way to convince libvirt not to add these rules?
Feel free to ask for any data that I didn't send here.
TIA.
--
Mariano Absatz - "El Baby"
el.baby(a)gmail.com
www.clueless.com.ar
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
An expert is a person who has made all the mistakes
that can be made in a very narrow field.
Niels Bohr
Danish physicist (1885 - 1962)
-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-
* TagZilla 0.066 * http://tagzilla.mozdev.org
15 years, 8 months
[libvirt] [PATCH] Fix sparse volume allocation reporting
by Cole Robinson
I have a sparse volume with a capacity of 1000M, and an allocation of a
little over 750M. 'du' prints the correct sizes, but 'virsh vol-dumpxml'
shows:
<capacity>1048576000</capacity>
<allocation>6406307840</allocation>
This is because we were calculating the allocation size using the
requested fs block size, instead of what stat actually uses as a block
size (DEV_BSIZE in sys/params.h). sys/params.h looks to be present in
mingw32-runtime, so I didn't add a configure check for it.
The attached patch fixes allocation listing for me.
Thanks,
Cole
15 years, 8 months
[libvirt] PATCH: Xen PCI device passthrough
by Daniel P. Berrange
This patch implements PCI device passthrough for Xen.
In pci.c there is a fair bit of refactoring to better support both
pcistub.ko and pciback.ko. The latter has two extra sysfs files,
add_slot and remove_slot for associating the driver with a specific
PCI device domain:bus:slot:func address, whereas pcistub can only
associate based on vendor:product ID
The Xen driver gets an implementation of the dettach/reattach APIs
for node devices.
The XML <-> SEXPR conversion gets adapted to cope with PCI devices
The XM <-> XML conversion gets adapted to load/save PCI device info
in /etc/xen config files
Daniel
Index: src/pci.c
===================================================================
RCS file: /data/cvs/libvirt/src/pci.c,v
retrieving revision 1.4
diff -u -p -r1.4 pci.c
--- src/pci.c 3 Mar 2009 17:00:18 -0000 1.4
+++ src/pci.c 30 Mar 2009 13:09:44 -0000
@@ -614,46 +614,80 @@ pciResetDevice(virConnectPtr conn, pciDe
return ret;
}
-static int
-pciBindDeviceToStub(virConnectPtr conn, pciDevice *dev, const char *stub_module)
+
+static void
+pciDriverDir(char *buf, size_t buflen, const char *driver)
{
- char stub_dir[PATH_MAX];
- char path[PATH_MAX];
+ snprintf(buf, buflen, PCI_SYSFS "drivers/%s", driver);
+}
- snprintf(stub_dir, sizeof(stub_dir), PCI_SYSFS "drivers/%s", stub_module);
+static void
+pciDriverFile(char *buf, size_t buflen, const char *driver, const char *file)
+{
+ snprintf(buf, buflen, PCI_SYSFS "drivers/%s/%s", driver, file);
+}
+
+static void
+pciDeviceFile(char *buf, size_t buflen, const char *device, const char *file)
+{
+ snprintf(buf, buflen, PCI_SYSFS "devices/%s/%s", device, file);
+}
- /* Try loading the stub module if it isn't already loaded;
- * Do not return an error if the stub module is not available.
- */
- if (!virFileExists(stub_dir)) {
- const char *const modprobeargv[] = { MODPROBE, stub_module, NULL };
- if (virRun(conn, modprobeargv, NULL) < 0) {
+static const char *
+pciFindStubDriver(virConnectPtr conn)
+{
+ char drvpath[PATH_MAX];
+ int probed = 0;
+
+recheck:
+ pciDriverDir(drvpath, sizeof(drvpath), "pci-stub");
+ if (virFileExists(drvpath))
+ return "pci-stub";
+ pciDriverDir(drvpath, sizeof(drvpath), "pciback");
+ if (virFileExists(drvpath))
+ return "pciback";
+
+ if (!probed) {
+ const char *const stubprobe[] = { MODPROBE, "pci-stub", NULL };
+ const char *const backprobe[] = { MODPROBE, "pciback", NULL };
+
+ probed = 1;
+ if (virRun(conn, stubprobe, NULL) < 0 &&
+ virRun(conn, backprobe, NULL) < 0) {
char ebuf[1024];
- VIR_WARN(_("modprobe %s failed: %s"), stub_module,
+ VIR_WARN(_("failed to load pci-stub or pciback drivers: %s"),
virStrerror(errno, ebuf, sizeof ebuf));
+ return 0;
}
+
+ goto recheck;
}
- if (!virFileExists(stub_dir)) {
- VIR_WARN(_("%s module not available, cannot bind device %s to it"),
- stub_module, dev->name);
- } else {
- /* Add the PCI device ID to the stub's dynamic ID table;
- * this is needed to allow us to bind the device to the stub.
- * Note: if the device is not currently bound to any driver,
- * stub will immediately be bound to the device. Also, note
- * that if a new device with this ID is hotplugged, or if a probe
- * is triggered for such a device, it will also be immediately
- * bound by the stub.
- */
- snprintf(path, sizeof(path), "%s/new_id", stub_dir);
- if (virFileWriteStr(path, dev->id) < 0) {
- virReportSystemError(conn, errno,
- _("Failed to add PCI device ID '%s' to %s"),
- dev->id, stub_module);
- return -1;
- }
+ return NULL;
+}
+
+
+static int
+pciBindDeviceToStub(virConnectPtr conn, pciDevice *dev, const char *driver)
+{
+ char drvdir[PATH_MAX];
+ char path[PATH_MAX];
+
+ /* Add the PCI device ID to the stub's dynamic ID table;
+ * this is needed to allow us to bind the device to the stub.
+ * Note: if the device is not currently bound to any driver,
+ * stub will immediately be bound to the device. Also, note
+ * that if a new device with this ID is hotplugged, or if a probe
+ * is triggered for such a device, it will also be immediately
+ * bound by the stub.
+ */
+ pciDriverFile(path, sizeof(path), driver, "new_id");
+ if (virFileWriteStr(path, dev->id) < 0) {
+ virReportSystemError(conn, errno,
+ _("Failed to add PCI device ID '%s' to %s"),
+ dev->id, driver);
+ return -1;
}
/* If the device is already bound to a driver, unbind it.
@@ -661,77 +695,100 @@ pciBindDeviceToStub(virConnectPtr conn,
* PCI device happens to be IDE controller for the disk hosting
* your root filesystem.
*/
- snprintf(path, sizeof(path),
- PCI_SYSFS "devices/%s/driver/unbind", dev->name);
+ pciDeviceFile(path, sizeof(path), dev->name, "driver/unbind");
if (virFileExists(path) && virFileWriteStr(path, dev->name) < 0) {
virReportSystemError(conn, errno,
_("Failed to unbind PCI device '%s'"), dev->name);
return -1;
}
- if (virFileExists(stub_dir)) {
- /* If the device isn't already bound to pci-stub, try binding it now.
- */
- snprintf(path, sizeof(path), PCI_SYSFS "devices/%s/driver", dev->name);
- if (!virFileLinkPointsTo(path, stub_dir)) {
- snprintf(path, sizeof(path), "%s/bind", stub_dir);
- if (virFileWriteStr(path, dev->name) < 0) {
- virReportSystemError(conn, errno,
- _("Failed to bind PCI device '%s' to %s"),
- dev->name, stub_module);
- return -1;
- }
+ /* If the device isn't already bound to pci-stub, try binding it now.
+ */
+ pciDriverDir(drvdir, sizeof(drvdir), driver);
+ pciDeviceFile(path, sizeof(path), dev->name, "driver");
+ if (!virFileLinkPointsTo(path, drvdir)) {
+ /* Xen's pciback.ko wants you to use new_slot first */
+ pciDriverFile(path, sizeof(path), driver, "new_slot");
+ if (virFileExists(path) && virFileWriteStr(path, dev->name) < 0) {
+ virReportSystemError(conn, errno,
+ _("Failed to add slot for PCI device '%s' to %s"),
+ dev->name, driver);
+ return -1;
}
- /* If 'remove_id' exists, remove the device id from pci-stub's dynamic
- * ID table so that 'drivers_probe' works below.
- */
- snprintf(path, sizeof(path), "%s/remove_id", stub_dir);
- if (virFileExists(path) && virFileWriteStr(path, dev->id) < 0) {
+ pciDriverFile(path, sizeof(path), driver, "bind");
+ if (virFileWriteStr(path, dev->name) < 0) {
virReportSystemError(conn, errno,
- _("Failed to remove PCI ID '%s' from %s"),
- dev->id, stub_module);
+ _("Failed to bind PCI device '%s' to %s"),
+ dev->name, driver);
return -1;
}
}
+ /* If 'remove_id' exists, remove the device id from pci-stub's dynamic
+ * ID table so that 'drivers_probe' works below.
+ */
+ pciDriverFile(path, sizeof(path), driver, "remove_id");
+ if (virFileExists(path) && virFileWriteStr(path, dev->id) < 0) {
+ virReportSystemError(conn, errno,
+ _("Failed to remove PCI ID '%s' from %s"),
+ dev->id, driver);
+ return -1;
+ }
+
return 0;
}
int
pciDettachDevice(virConnectPtr conn, pciDevice *dev)
{
- return pciBindDeviceToStub(conn, dev, "pci-stub");
+ const char *driver = pciFindStubDriver(conn);
+ if (!driver) {
+ pciReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s",
+ _("cannot find any PCI stub module"));
+ return -1;
+ }
+
+ return pciBindDeviceToStub(conn, dev, driver);
}
static int
-pciUnBindDeviceFromStub(virConnectPtr conn, pciDevice *dev, const char *stub_module)
+pciUnBindDeviceFromStub(virConnectPtr conn, pciDevice *dev, const char *driver)
{
- char stub_dir[PATH_MAX];
+ char drvdir[PATH_MAX];
char path[PATH_MAX];
- snprintf(stub_dir, sizeof(stub_dir), PCI_SYSFS "drivers/%s", stub_module);
-
/* If the device is bound to stub, unbind it.
*/
- snprintf(path, sizeof(path), PCI_SYSFS "devices/%s/driver", dev->name);
- if (virFileExists(stub_dir) && virFileLinkPointsTo(path, stub_dir)) {
- snprintf(path, sizeof(path), "%s/unbind", stub_dir);
+ pciDriverDir(drvdir, sizeof(drvdir), driver);
+ pciDeviceFile(path, sizeof(path), dev->name, "driver");
+ if (virFileExists(drvdir) && virFileLinkPointsTo(path, drvdir)) {
+ pciDriverFile(path, sizeof(path), driver, "unbind");
if (virFileWriteStr(path, dev->name) < 0) {
virReportSystemError(conn, errno,
_("Failed to bind PCI device '%s' to %s"),
- dev->name, stub_module);
+ dev->name, driver);
return -1;
}
}
+ /* Xen's pciback.ko wants you to use remove_slot on the specific device */
+ pciDriverFile(path, sizeof(path), driver, "remove_slot");
+ if (virFileExists(path) && virFileWriteStr(path, dev->name) < 0) {
+ virReportSystemError(conn, errno,
+ _("Failed to remove slot for PCI device '%s' to %s"),
+ dev->name, driver);
+ return -1;
+ }
+
+
/* Trigger a re-probe of the device is not in the stub's dynamic
* ID table. If the stub is available, but 'remove_id' isn't
* available, then re-probing would just cause the device to be
* re-bound to the stub.
*/
- snprintf(path, sizeof(path), "%s/remove_id", stub_dir);
- if (!virFileExists(stub_dir) || virFileExists(path)) {
+ pciDriverFile(path, sizeof(path), driver, "remove_id");
+ if (!virFileExists(drvdir) || virFileExists(path)) {
if (virFileWriteStr(PCI_SYSFS "drivers_probe", dev->name) < 0) {
virReportSystemError(conn, errno,
_("Failed to trigger a re-probe for PCI device '%s'"),
@@ -746,7 +803,14 @@ pciUnBindDeviceFromStub(virConnectPtr co
int
pciReAttachDevice(virConnectPtr conn, pciDevice *dev)
{
- return pciUnBindDeviceFromStub(conn, dev, "pci-stub");
+ const char *driver = pciFindStubDriver(conn);
+ if (!driver) {
+ pciReportError(conn, VIR_ERR_INTERNAL_ERROR, "%s",
+ _("cannot find any PCI stub module"));
+ return -1;
+ }
+
+ return pciUnBindDeviceFromStub(conn, dev, driver);
}
static char *
Index: src/xen_unified.c
===================================================================
RCS file: /data/cvs/libvirt/src/xen_unified.c,v
retrieving revision 1.83
diff -u -p -r1.83 xen_unified.c
--- src/xen_unified.c 5 Feb 2009 16:03:11 -0000 1.83
+++ src/xen_unified.c 30 Mar 2009 13:09:44 -0000
@@ -43,6 +43,8 @@
#include "xml.h"
#include "util.h"
#include "memory.h"
+#include "node_device_conf.h"
+#include "pci.h"
#define VIR_FROM_THIS VIR_FROM_XEN
@@ -1420,6 +1422,123 @@ xenUnifiedDomainEventDeregister (virConn
return ret;
}
+
+static int
+xenUnifiedNodeDeviceGetPciInfo (virNodeDevicePtr dev,
+ unsigned *domain,
+ unsigned *bus,
+ unsigned *slot,
+ unsigned *function)
+{
+ virNodeDeviceDefPtr def = NULL;
+ virNodeDevCapsDefPtr cap;
+ char *xml = NULL;
+ int ret = -1;
+
+ xml = virNodeDeviceGetXMLDesc(dev, 0);
+ if (!xml)
+ goto out;
+
+ def = virNodeDeviceDefParseString(dev->conn, xml);
+ if (!def)
+ goto out;
+
+ cap = def->caps;
+ while (cap) {
+ if (cap->type == VIR_NODE_DEV_CAP_PCI_DEV) {
+ *domain = cap->data.pci_dev.domain;
+ *bus = cap->data.pci_dev.bus;
+ *slot = cap->data.pci_dev.slot;
+ *function = cap->data.pci_dev.function;
+ break;
+ }
+
+ cap = cap->next;
+ }
+
+ if (!cap) {
+ xenUnifiedError(dev->conn, VIR_ERR_INVALID_ARG,
+ _("device %s is not a PCI device"), dev->name);
+ goto out;
+ }
+
+ ret = 0;
+out:
+ virNodeDeviceDefFree(def);
+ VIR_FREE(xml);
+ return ret;
+}
+
+static int
+xenUnifiedNodeDeviceDettach (virNodeDevicePtr dev)
+{
+ pciDevice *pci;
+ unsigned domain, bus, slot, function;
+ int ret = -1;
+
+ if (xenUnifiedNodeDeviceGetPciInfo(dev, &domain, &bus, &slot, &function) < 0)
+ return -1;
+
+ pci = pciGetDevice(dev->conn, domain, bus, slot, function);
+ if (!pci)
+ return -1;
+
+ if (pciDettachDevice(dev->conn, pci) < 0)
+ goto out;
+
+ ret = 0;
+out:
+ pciFreeDevice(dev->conn, pci);
+ return ret;
+}
+
+static int
+xenUnifiedNodeDeviceReAttach (virNodeDevicePtr dev)
+{
+ pciDevice *pci;
+ unsigned domain, bus, slot, function;
+ int ret = -1;
+
+ if (xenUnifiedNodeDeviceGetPciInfo(dev, &domain, &bus, &slot, &function) < 0)
+ return -1;
+
+ pci = pciGetDevice(dev->conn, domain, bus, slot, function);
+ if (!pci)
+ return -1;
+
+ if (pciReAttachDevice(dev->conn, pci) < 0)
+ goto out;
+
+ ret = 0;
+out:
+ pciFreeDevice(dev->conn, pci);
+ return ret;
+}
+
+static int
+xenUnifiedNodeDeviceReset (virNodeDevicePtr dev)
+{
+ pciDevice *pci;
+ unsigned domain, bus, slot, function;
+ int ret = -1;
+
+ if (xenUnifiedNodeDeviceGetPciInfo(dev, &domain, &bus, &slot, &function) < 0)
+ return -1;
+
+ pci = pciGetDevice(dev->conn, domain, bus, slot, function);
+ if (!pci)
+ return -1;
+
+ if (pciResetDevice(dev->conn, pci) < 0)
+ goto out;
+
+ ret = 0;
+out:
+ pciFreeDevice(dev->conn, pci);
+ return ret;
+}
+
+
/*----- Register with libvirt.c, and initialise Xen drivers. -----*/
/* The interface which we export upwards to libvirt.c. */
@@ -1481,6 +1600,9 @@ static virDriver xenUnifiedDriver = {
.getFreeMemory = xenUnifiedNodeGetFreeMemory,
.domainEventRegister = xenUnifiedDomainEventRegister,
.domainEventDeregister = xenUnifiedDomainEventDeregister,
+ .nodeDeviceDettach = xenUnifiedNodeDeviceDettach,
+ .nodeDeviceReAttach = xenUnifiedNodeDeviceReAttach,
+ .nodeDeviceReset = xenUnifiedNodeDeviceReset,
};
/**
Index: src/xend_internal.c
===================================================================
RCS file: /data/cvs/libvirt/src/xend_internal.c,v
retrieving revision 1.253
diff -u -p -r1.253 xend_internal.c
--- src/xend_internal.c 10 Mar 2009 11:13:32 -0000 1.253
+++ src/xend_internal.c 30 Mar 2009 13:09:45 -0000
@@ -92,6 +92,11 @@ xenDaemonFormatSxprNet(virConnectPtr con
int xendConfigVersion,
int isAttach);
static int
+xenDaemonFormatSxprOnePCI(virConnectPtr conn,
+ virDomainHostdevDefPtr def,
+ virBufferPtr buf);
+
+static int
virDomainXMLDevID(virDomainPtr domain,
virDomainDeviceDefPtr dev,
char *class,
@@ -2145,6 +2150,131 @@ error:
return -1;
}
+/**
+ * xenDaemonParseSxprPCI
+ * @conn: connection
+ * @root: root sexpr
+ *
+ * This parses out block devices from the domain sexpr
+ *
+ * Returns 0 if successful or -1 if failed.
+ */
+static int
+xenDaemonParseSxprPCI(virConnectPtr conn,
+ virDomainDefPtr def,
+ const struct sexpr *root)
+{
+ const struct sexpr *cur, *tmp = NULL, *node;
+ virDomainHostdevDefPtr dev = NULL;
+
+ /*
+ * With the (domain ...) block we have the following odd setup
+ *
+ * (device
+ * (pci
+ * (dev (domain 0x0000) (bus 0x00) (slot 0x1b) (func 0x0))
+ * (dev (domain 0x0000) (bus 0x00) (slot 0x13) (func 0x0))
+ * )
+ * )
+ *
+ * Normally there is one (device ...) block per device, but in
+ * wierd world of Xen PCI, once (device ...) covers multiple
+ * devices.
+ */
+
+ for (cur = root; cur->kind == SEXPR_CONS; cur = cur->u.s.cdr) {
+ node = cur->u.s.car;
+ if ((tmp = sexpr_lookup(node, "device/pci")) != NULL)
+ break;
+ }
+
+ if (!tmp)
+ return 0;
+
+ for (cur = tmp; cur->kind == SEXPR_CONS; cur = cur->u.s.cdr) {
+ const char *domain = NULL;
+ const char *bus = NULL;
+ const char *slot = NULL;
+ const char *func = NULL;
+ int domainID;
+ int busID;
+ int slotID;
+ int funcID;
+
+ node = cur->u.s.car;
+ if (!sexpr_lookup(node, "dev"))
+ continue;
+
+ if (!(domain = sexpr_node(node, "dev/domain"))) {
+ virXendError(conn, VIR_ERR_INTERNAL_ERROR,
+ "%s", _("missing PCI domain"));
+ goto error;
+ }
+ if (!(bus = sexpr_node(node, "dev/bus"))) {
+ virXendError(conn, VIR_ERR_INTERNAL_ERROR,
+ "%s", _("missing PCI bus"));
+ goto error;
+ }
+ if (!(slot = sexpr_node(node, "dev/slot"))) {
+ virXendError(conn, VIR_ERR_INTERNAL_ERROR,
+ "%s", _("missing PCI slot"));
+ goto error;
+ }
+ if (!(func = sexpr_node(node, "dev/func"))) {
+ virXendError(conn, VIR_ERR_INTERNAL_ERROR,
+ "%s", _("missing PCI func"));
+ goto error;
+ }
+
+ if (virStrToLong_i(domain, NULL, 0, &domainID) < 0) {
+ virXendError(conn, VIR_ERR_INTERNAL_ERROR,
+ _("cannot parse PCI domain '%s'"), domain);
+ goto error;
+ }
+ if (virStrToLong_i(bus, NULL, 0, &busID) < 0) {
+ virXendError(conn, VIR_ERR_INTERNAL_ERROR,
+ _("cannot parse PCI bus '%s'"), bus);
+ goto error;
+ }
+ if (virStrToLong_i(slot, NULL, 0, &slotID) < 0) {
+ virXendError(conn, VIR_ERR_INTERNAL_ERROR,
+ _("cannot parse PCI slot '%s'"), slot);
+ goto error;
+ }
+ if (virStrToLong_i(func, NULL, 0, &funcID) < 0) {
+ virXendError(conn, VIR_ERR_INTERNAL_ERROR,
+ _("cannot parse PCI func '%s'"), func);
+ goto error;
+ }
+
+ if (VIR_ALLOC(dev) < 0)
+ goto no_memory;
+
+ dev->mode = VIR_DOMAIN_HOSTDEV_MODE_SUBSYS;
+ dev->managed = 0;
+ dev->source.subsys.type = VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI;
+ dev->source.subsys.u.pci.domain = domainID;
+ dev->source.subsys.u.pci.bus = busID;
+ dev->source.subsys.u.pci.slot = slotID;
+ dev->source.subsys.u.pci.function = funcID;
+
+ if (VIR_REALLOC_N(def->hostdevs, def->nhostdevs+1) < 0) {
+ goto no_memory;
+ }
+
+ def->hostdevs[def->nhostdevs++] = dev;
+ }
+
+ return 0;
+
+no_memory:
+ virReportOOMError(conn);
+
+error:
+ virDomainHostdevDefFree(dev);
+ return -1;
+}
+
/**
* xenDaemonParseSxpr:
@@ -2310,6 +2440,9 @@ xenDaemonParseSxpr(virConnectPtr conn,
if (xenDaemonParseSxprNets(conn, def, root) < 0)
goto error;
+ if (xenDaemonParseSxprPCI(conn, def, root) < 0)
+ goto error;
+
/* New style graphics device config */
if (xenDaemonParseSxprGraphicsNew(conn, def, root) < 0)
goto error;
@@ -3953,6 +4086,20 @@ xenDaemonAttachDevice(virDomainPtr domai
goto cleanup;
break;
+ case VIR_DOMAIN_DEVICE_HOSTDEV:
+ if (dev->data.hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
+ dev->data.hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) {
+ if (xenDaemonFormatSxprOnePCI(domain->conn,
+ dev->data.hostdev,
+ &buf) < 0)
+ goto cleanup;
+ } else {
+ virXendError(domain->conn, VIR_ERR_NO_SUPPORT, "%s",
+ _("unsupported device type"));
+ goto cleanup;
+ }
+ break;
+
default:
virXendError(domain->conn, VIR_ERR_NO_SUPPORT, "%s",
_("unsupported device type"));
@@ -5263,6 +5410,85 @@ xenDaemonFormatSxprNet(virConnectPtr con
return 0;
}
+
+static void
+xenDaemonFormatSxprPCI(virDomainHostdevDefPtr def,
+ virBufferPtr buf)
+{
+ virBufferVSprintf(buf, "(dev (domain 0x%04x)(bus 0x%02x)(slot 0x%02x)(func 0x%x))",
+ def->source.subsys.u.pci.domain,
+ def->source.subsys.u.pci.bus,
+ def->source.subsys.u.pci.slot,
+ def->source.subsys.u.pci.function);
+}
+
+static int
+xenDaemonFormatSxprOnePCI(virConnectPtr conn,
+ virDomainHostdevDefPtr def,
+ virBufferPtr buf)
+{
+ if (def->managed) {
+ virXendError(conn, VIR_ERR_NO_SUPPORT, "%s",
+ _("managed PCI devices not supported with XenD"));
+ return -1;
+ }
+
+ virBufferAddLit(buf, "(pci ");
+ xenDaemonFormatSxprPCI(def, buf);
+ virBufferAddLit(buf, ")");
+
+ return 0;
+}
+
+static int
+xenDaemonFormatSxprAllPCI(virConnectPtr conn,
+ virDomainDefPtr def,
+ virBufferPtr buf)
+{
+ int hasPCI = 0;
+ int i;
+
+ for (i = 0 ; i < def->nhostdevs ; i++)
+ if (def->hostdevs[i]->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
+ def->hostdevs[i]->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI)
+ hasPCI = 1;
+
+ if (!hasPCI)
+ return 0;
+
+ /*
+ * With the (domain ...) block we have the following odd setup
+ *
+ * (device
+ * (pci
+ * (dev (domain 0x0000) (bus 0x00) (slot 0x1b) (func 0x0))
+ * (dev (domain 0x0000) (bus 0x00) (slot 0x13) (func 0x0))
+ * )
+ * )
+ *
+ * Normally there is one (device ...) block per device, but in
+ * wierd world of Xen PCI, once (device ...) covers multiple
+ * devices.
+ */
+
+ virBufferAddLit(buf, "(device (pci ");
+ for (i = 0 ; i < def->nhostdevs ; i++) {
+ if (def->hostdevs[i]->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
+ def->hostdevs[i]->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) {
+ if (def->hostdevs[i]->managed) {
+ virXendError(conn, VIR_ERR_NO_SUPPORT, "%s",
+ _("managed PCI devices not supported with XenD"));
+ return -1;
+ }
+
+ xenDaemonFormatSxprPCI(def->hostdevs[i], buf);
+ }
+ }
+ virBufferAddLit(buf, "))");
+
+ return 0;
+}
+
int
xenDaemonFormatSxprSound(virConnectPtr conn,
virDomainDefPtr def,
@@ -5529,6 +5755,9 @@ xenDaemonFormatSxpr(virConnectPtr conn,
&buf, hvm, xendConfigVersion, 0) < 0)
goto error;
+ if (xenDaemonFormatSxprAllPCI(conn, def, &buf) < 0)
+ goto error;
+
/* New style PV graphics config xen >= 3.0.4,
* or HVM graphics config xen >= 3.0.5 */
if ((xendConfigVersion >= XEND_CONFIG_MIN_VERS_PVFB_NEWCONF && !hvm) ||
@@ -5611,6 +5840,9 @@ virDomainXMLDevID(virDomainPtr domain,
strncpy(ref, xref, ref_len);
free(xref);
ref[ref_len - 1] = '\0';
+ } else if (dev->type == VIR_DOMAIN_DEVICE_HOSTDEV &&
+ dev->data.hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
+ dev->data.hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) {
} else {
virXendError(NULL, VIR_ERR_NO_SUPPORT,
"%s", _("hotplug of device type not supported"));
Index: src/xm_internal.c
===================================================================
RCS file: /data/cvs/libvirt/src/xm_internal.c,v
retrieving revision 1.118
diff -u -p -r1.118 xm_internal.c
--- src/xm_internal.c 24 Mar 2009 11:16:29 -0000 1.118
+++ src/xm_internal.c 30 Mar 2009 13:09:45 -0000
@@ -673,6 +673,7 @@ xenXMDomainConfigParse(virConnectPtr con
virDomainDiskDefPtr disk = NULL;
virDomainNetDefPtr net = NULL;
virDomainGraphicsDefPtr graphics = NULL;
+ virDomainHostdevDefPtr hostdev = NULL;
int i;
const char *defaultArch, *defaultMachine;
@@ -1115,6 +1116,88 @@ xenXMDomainConfigParse(virConnectPtr con
}
}
+ list = virConfGetValue(conf, "pci");
+ if (list && list->type == VIR_CONF_LIST) {
+ list = list->list;
+ while (list) {
+ char domain[5];
+ char bus[3];
+ char slot[3];
+ char func[2];
+ char *key, *nextkey;
+ int domainID;
+ int busID;
+ int slotID;
+ int funcID;
+
+ domain[0] = bus[0] = slot[0] = func[0] = '\0';
+
+ if ((list->type != VIR_CONF_STRING) || (list->str == NULL))
+ goto skippci;
+
+ /* pci=['0000:00:1b.0','0000:00:13.0'] */
+ key = list->str;
+ if (!(key = list->str))
+ goto skippci;
+ if (!(nextkey = strchr(key, ':')))
+ goto skippci;
+
+ if ((nextkey - key) > (sizeof(domain)-1))
+ goto skippci;
+
+ strncpy(domain, key, sizeof(domain));
+ domain[sizeof(domain)-1] = '\0';
+
+ key = nextkey + 1;
+ if (!(nextkey = strchr(key, ':')))
+ goto skippci;
+
+ strncpy(bus, key, sizeof(bus));
+ bus[sizeof(bus)-1] = '\0';
+
+ key = nextkey + 1;
+ if (!(nextkey = strchr(key, '.')))
+ goto skippci;
+
+ strncpy(slot, key, sizeof(slot));
+ slot[sizeof(slot)-1] = '\0';
+
+ key = nextkey + 1;
+ if (strlen(key) != 1)
+ goto skippci;
+
+ strncpy(func, key, sizeof(func));
+ func[sizeof(func)-1] = '\0';
+
+ if (virStrToLong_i(domain, NULL, 16, &domainID) < 0)
+ goto skippci;
+ if (virStrToLong_i(bus, NULL, 16, &busID) < 0)
+ goto skippci;
+ if (virStrToLong_i(slot, NULL, 16, &slotID) < 0)
+ goto skippci;
+ if (virStrToLong_i(func, NULL, 16, &funcID) < 0)
+ goto skippci;
+
+ if (VIR_ALLOC(hostdev) < 0)
+ goto cleanup;
+
+ hostdev->managed = 0;
+ hostdev->source.subsys.type = VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI;
+ hostdev->source.subsys.u.pci.domain = domainID;
+ hostdev->source.subsys.u.pci.bus = busID;
+ hostdev->source.subsys.u.pci.slot = slotID;
+ hostdev->source.subsys.u.pci.function = funcID;
+
+ if (VIR_REALLOC_N(def->hostdevs, def->nhostdevs+1) < 0)
+ goto no_memory;
+ def->hostdevs[def->nhostdevs++] = hostdev;
+ hostdev = NULL;
+
+ skippci:
+ list = list->next;
+ }
+ }
+
if (hvm) {
if (xenXMConfigGetString(conn, conf, "usbdevice", &str, NULL) < 0)
goto cleanup;
@@ -1939,6 +2022,76 @@ cleanup:
+static int
+xenXMDomainConfigFormatPCI(virConnectPtr conn,
+ virConfPtr conf,
+ virDomainDefPtr def)
+{
+
+ virConfValuePtr pciVal = NULL;
+ int hasPCI = 0;
+ int i;
+
+ for (i = 0 ; i < def->nhostdevs ; i++)
+ if (def->hostdevs[i]->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
+ def->hostdevs[i]->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI)
+ hasPCI = 1;
+
+ if (!hasPCI)
+ return 0;
+
+ if (VIR_ALLOC(pciVal) < 0)
+ return -1;
+
+ pciVal->type = VIR_CONF_LIST;
+ pciVal->list = NULL;
+
+ for (i = 0 ; i < def->nhostdevs ; i++) {
+ if (def->hostdevs[i]->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS &&
+ def->hostdevs[i]->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_PCI) {
+ virConfValuePtr val, tmp;
+ char *buf;
+
+ if (virAsprintf(&buf, "%04x:%02x:%02x.%x",
+ def->hostdevs[i]->source.subsys.u.pci.domain,
+ def->hostdevs[i]->source.subsys.u.pci.bus,
+ def->hostdevs[i]->source.subsys.u.pci.slot,
+ def->hostdevs[i]->source.subsys.u.pci.function) < 0)
+ goto error;
+
+ if (VIR_ALLOC(val) < 0) {
+ VIR_FREE(buf);
+ virReportOOMError(conn);
+ goto error;
+ }
+ val->type = VIR_CONF_STRING;
+ val->str = buf;
+ tmp = pciVal->list;
+ while (tmp && tmp->next)
+ tmp = tmp->next;
+ if (tmp)
+ tmp->next = val;
+ else
+ pciVal->list = val;
+ }
+ }
+
+ if (pciVal->list != NULL) {
+ int ret = virConfSetValue(conf, "pci", pciVal);
+ pciVal = NULL;
+ if (ret < 0)
+ return -1;
+ }
+ VIR_FREE(pciVal);
+
+ return 0;
+
+error:
+ virConfFreeValue(pciVal);
+ return -1;
+}
+
+
virConfPtr xenXMDomainConfigFormat(virConnectPtr conn,
virDomainDefPtr def) {
virConfPtr conf = NULL;
@@ -2260,6 +2413,9 @@ virConfPtr xenXMDomainConfigFormat(virCo
}
VIR_FREE(netVal);
+ if (xenXMDomainConfigFormatPCI(conn, conf, def) < 0)
+ goto cleanup;
+
if (hvm) {
if (def->nparallels) {
virBuffer buf = VIR_BUFFER_INITIALIZER;
Index: tests/sexpr2xmltest.c
===================================================================
RCS file: /data/cvs/libvirt/tests/sexpr2xmltest.c,v
retrieving revision 1.36
diff -u -p -r1.36 sexpr2xmltest.c
--- tests/sexpr2xmltest.c 29 Jan 2009 17:02:00 -0000 1.36
+++ tests/sexpr2xmltest.c 30 Mar 2009 13:09:45 -0000
@@ -142,6 +142,7 @@ mymain(int argc, char **argv)
DO_TEST("net-e1000", "net-e1000", 2);
DO_TEST("bridge-ipaddr", "bridge-ipaddr", 3);
DO_TEST("no-source-cdrom", "no-source-cdrom", 2);
+ DO_TEST("pci-devs", "pci-devs", 2);
DO_TEST("fv-utc", "fv-utc", 1);
DO_TEST("fv-localtime", "fv-localtime", 1);
Index: tests/xmconfigtest.c
===================================================================
RCS file: /data/cvs/libvirt/tests/xmconfigtest.c,v
retrieving revision 1.26
diff -u -p -r1.26 xmconfigtest.c
--- tests/xmconfigtest.c 8 Jan 2009 19:52:15 -0000 1.26
+++ tests/xmconfigtest.c 30 Mar 2009 13:09:45 -0000
@@ -231,6 +231,7 @@ mymain(int argc, char **argv)
DO_TEST("escape-paths", 2);
DO_TEST("no-source-cdrom", 2);
+ DO_TEST("pci-devs", 2);
virCapabilitiesFree(caps);
Index: tests/xml2sexprtest.c
===================================================================
RCS file: /data/cvs/libvirt/tests/xml2sexprtest.c,v
retrieving revision 1.34
diff -u -p -r1.34 xml2sexprtest.c
--- tests/xml2sexprtest.c 23 Jan 2009 01:48:47 -0000 1.34
+++ tests/xml2sexprtest.c 30 Mar 2009 13:09:45 -0000
@@ -128,6 +128,7 @@ mymain(int argc, char **argv)
DO_TEST("net-e1000", "net-e1000", "pvtest", 2);
DO_TEST("bridge-ipaddr", "bridge-ipaddr", "pvtest", 2);
DO_TEST("no-source-cdrom", "no-source-cdrom", "test", 2);
+ DO_TEST("pci-devs", "pci-devs", "pvtest", 2);
DO_TEST("fv-utc", "fv-utc", "fvtest", 1);
DO_TEST("fv-localtime", "fv-localtime", "fvtest", 1);
Index: tests/sexpr2xmldata/sexpr2xml-pci-devs.sexpr
===================================================================
RCS file: tests/sexpr2xmldata/sexpr2xml-pci-devs.sexpr
diff -N tests/sexpr2xmldata/sexpr2xml-pci-devs.sexpr
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ tests/sexpr2xmldata/sexpr2xml-pci-devs.sexpr 30 Mar 2009 13:09:45 -0000
@@ -0,0 +1,2 @@
+(domain (domid 6)(name 'pvtest')(memory 420)(maxmem 420)(vcpus 2)(uuid '596a5d2171f48fb2e068e2386a5c413e')(on_poweroff 'destroy')(on_reboot 'destroy')(on_crash 'destroy')(image (linux (kernel '/var/lib/xen/vmlinuz.2Dn2YT')(ramdisk '/var/lib/xen/initrd.img.0u-Vhq')(args ' method=http://download.fedora.devel.redhat.com/pub/fedora/linux/core/test... ')))(device (pci (backend 0)(dev (domain 0x0001) (bus 0x0c) (slot 0x1b) (func 0x2))(dev (domain 0x0000) (bus 0x01) (slot 0x13) (func 0x0))))(device (vbd (dev 'xvda')(uname 'phy:/dev/MainVG/GuestVG')(mode 'w'))))
+
Index: tests/sexpr2xmldata/sexpr2xml-pci-devs.xml
===================================================================
RCS file: tests/sexpr2xmldata/sexpr2xml-pci-devs.xml
diff -N tests/sexpr2xmldata/sexpr2xml-pci-devs.xml
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ tests/sexpr2xmldata/sexpr2xml-pci-devs.xml 30 Mar 2009 13:09:45 -0000
@@ -0,0 +1,37 @@
+<domain type='xen' id='6'>
+ <name>pvtest</name>
+ <uuid>596a5d21-71f4-8fb2-e068-e2386a5c413e</uuid>
+ <memory>430080</memory>
+ <currentMemory>430080</currentMemory>
+ <vcpu>2</vcpu>
+ <os>
+ <type>linux</type>
+ <kernel>/var/lib/xen/vmlinuz.2Dn2YT</kernel>
+ <initrd>/var/lib/xen/initrd.img.0u-Vhq</initrd>
+ <cmdline> method=http://download.fedora.devel.redhat.com/pub/fedora/linux/core/test... </cmdline>
+ </os>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>destroy</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <disk type='block' device='disk'>
+ <driver name='phy'/>
+ <source dev='/dev/MainVG/GuestVG'/>
+ <target dev='xvda' bus='xen'/>
+ </disk>
+ <console type='pty'>
+ <target port='0'/>
+ </console>
+ <hostdev mode='subsystem' type='pci' managed='no'>
+ <source>
+ <address domain='0x0001' bus='0x0c' slot='0x1b' function='0x2'/>
+ </source>
+ </hostdev>
+ <hostdev mode='subsystem' type='pci' managed='no'>
+ <source>
+ <address domain='0x0000' bus='0x01' slot='0x13' function='0x0'/>
+ </source>
+ </hostdev>
+ </devices>
+</domain>
Index: tests/xmconfigdata/test-pci-devs.cfg
===================================================================
RCS file: tests/xmconfigdata/test-pci-devs.cfg
diff -N tests/xmconfigdata/test-pci-devs.cfg
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ tests/xmconfigdata/test-pci-devs.cfg 30 Mar 2009 13:09:45 -0000
@@ -0,0 +1,24 @@
+name = "test"
+uuid = "cc2315e7-d26a-307a-438c-6d188ec4c09c"
+maxmem = 382
+memory = 350
+vcpus = 1
+builder = "hvm"
+kernel = "/usr/lib/xen/boot/hvmloader"
+boot = "c"
+pae = 1
+acpi = 1
+apic = 1
+localtime = 0
+on_poweroff = "destroy"
+on_reboot = "destroy"
+on_crash = "destroy"
+device_model = "/usr/lib/xen/bin/qemu-dm"
+sdl = 0
+vnc = 1
+vncunused = 1
+disk = [ "phy:/dev/sda8,hda,w", ",hdc:cdrom,r" ]
+vif = [ "mac=00:16:3e:0a:7b:39,bridge=xenbr0,type=ioemu" ]
+pci = [ "0001:0c:1b.2", "0000:01:13.0" ]
+parallel = "none"
+serial = "pty"
Index: tests/xmconfigdata/test-pci-devs.xml
===================================================================
RCS file: tests/xmconfigdata/test-pci-devs.xml
diff -N tests/xmconfigdata/test-pci-devs.xml
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ tests/xmconfigdata/test-pci-devs.xml 30 Mar 2009 13:09:45 -0000
@@ -0,0 +1,56 @@
+<domain type='xen'>
+ <name>test</name>
+ <uuid>cc2315e7-d26a-307a-438c-6d188ec4c09c</uuid>
+ <memory>391168</memory>
+ <currentMemory>358400</currentMemory>
+ <vcpu>1</vcpu>
+ <os>
+ <type arch='i686' machine='xenfv'>hvm</type>
+ <loader>/usr/lib/xen/boot/hvmloader</loader>
+ <boot dev='hd'/>
+ </os>
+ <features>
+ <acpi/>
+ <apic/>
+ <pae/>
+ </features>
+ <clock offset='utc'/>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>destroy</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <emulator>/usr/lib/xen/bin/qemu-dm</emulator>
+ <disk type='block' device='disk'>
+ <driver name='phy'/>
+ <source dev='/dev/sda8'/>
+ <target dev='hda' bus='ide'/>
+ </disk>
+ <disk type='block' device='cdrom'>
+ <driver name='phy'/>
+ <target dev='hdc' bus='ide'/>
+ <readonly/>
+ </disk>
+ <interface type='bridge'>
+ <mac address='00:16:3e:0a:7b:39'/>
+ <source bridge='xenbr0'/>
+ </interface>
+ <serial type='pty'>
+ <target port='0'/>
+ </serial>
+ <console type='pty'>
+ <target port='0'/>
+ </console>
+ <input type='mouse' bus='ps2'/>
+ <graphics type='vnc' port='-1' autoport='yes'/>
+ <hostdev mode='subsystem' type='pci' managed='no'>
+ <source>
+ <address domain='0x0001' bus='0x0c' slot='0x1b' function='0x2'/>
+ </source>
+ </hostdev>
+ <hostdev mode='subsystem' type='pci' managed='no'>
+ <source>
+ <address domain='0x0000' bus='0x01' slot='0x13' function='0x0'/>
+ </source>
+ </hostdev>
+ </devices>
+</domain>
Index: tests/xml2sexprdata/xml2sexpr-pci-devs.sexpr
===================================================================
RCS file: tests/xml2sexprdata/xml2sexpr-pci-devs.sexpr
diff -N tests/xml2sexprdata/xml2sexpr-pci-devs.sexpr
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ tests/xml2sexprdata/xml2sexpr-pci-devs.sexpr 30 Mar 2009 13:09:45 -0000
@@ -0,0 +1 @@
+(vm (name 'pvtest')(memory 420)(maxmem 420)(vcpus 2)(uuid '596a5d21-71f4-8fb2-e068-e2386a5c413e')(on_poweroff 'destroy')(on_reboot 'destroy')(on_crash 'destroy')(image (linux (kernel '/var/lib/xen/vmlinuz.2Dn2YT')(ramdisk '/var/lib/xen/initrd.img.0u-Vhq')(args ' method=http://download.fedora.devel.redhat.com/pub/fedora/linux/core/test... ')))(device (vbd (dev 'xvda')(uname 'phy:/dev/MainVG/GuestLV')(mode 'w')))(device (pci (dev (domain 0x0001)(bus 0x0c)(slot 0x1b)(func 0x2))(dev (domain 0x0000)(bus 0x01)(slot 0x13)(func 0x0)))))
\ No newline at end of file
Index: tests/xml2sexprdata/xml2sexpr-pci-devs.xml
===================================================================
RCS file: tests/xml2sexprdata/xml2sexpr-pci-devs.xml
diff -N tests/xml2sexprdata/xml2sexpr-pci-devs.xml
--- /dev/null 1 Jan 1970 00:00:00 -0000
+++ tests/xml2sexprdata/xml2sexpr-pci-devs.xml 30 Mar 2009 13:09:45 -0000
@@ -0,0 +1,33 @@
+<domain type='xen' id='15'>
+ <name>pvtest</name>
+ <uuid>596a5d2171f48fb2e068e2386a5c413e</uuid>
+ <os>
+ <type>linux</type>
+ <kernel>/var/lib/xen/vmlinuz.2Dn2YT</kernel>
+ <initrd>/var/lib/xen/initrd.img.0u-Vhq</initrd>
+ <cmdline> method=http://download.fedora.devel.redhat.com/pub/fedora/linux/core/test... </cmdline>
+ </os>
+ <memory>430080</memory>
+ <vcpu>2</vcpu>
+ <on_poweroff>destroy</on_poweroff>
+ <on_reboot>destroy</on_reboot>
+ <on_crash>destroy</on_crash>
+ <devices>
+ <disk type='block' device='disk'>
+ <source dev='/dev/MainVG/GuestLV'/>
+ <target dev='xvda'/>
+ </disk>
+ <console tty='/dev/pts/4'/>
+ <hostdev mode='subsystem' type='pci' managed='no'>
+ <source>
+ <address domain='0x0001' bus='0x0c' slot='0x1b' function='0x2'/>
+ </source>
+ </hostdev>
+ <hostdev mode='subsystem' type='pci' managed='no'>
+ <source>
+ <address domain='0x0000' bus='0x01' slot='0x13' function='0x0'/>
+ </source>
+ </hostdev>
+ </devices>
+</domain>
+
--
|: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :|
|: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :|
|: http://autobuild.org -o- http://search.cpan.org/~danberr/ :|
|: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
15 years, 8 months
[libvirt] [PATCH] Openvz: how to use a nondefault config
by Anton Protopopov
Hi all.
When libvirt creates an OpenVZ machine, it does smth like
# vzctl create $ctid --ostemplate `ostemplate`
And we can't specify an --config `config` argument. In this case vzctl
chooses
a default config file (a value of CONFIG variable from /etc/vz/vz.conf).
But there are cases when we want to specify a config file directly, as in
# vzctl create $ctid --ostemplate `ostemplate` --config `config`
I think, that we can try to use the same `ostemplate` name as --config
value, if corresponding template exists,
i.e., if there is a file /etc/vz/conf/ve-`ostemplate`.conf-sample, libvirt
will run a command
# vzctl create $ctid --ostemplate `ostemplate` --config `ostemplate`
Otherwise, it will run it's default command
# vzctl create $ctid --ostemplate `ostemplate`
(the same arguments.)
-----------
Example of creating a machine with nondefault config:
1. Create /etc/vz/conf/ve-altlinux-test.conf-sample
2. Create /var/lib/vz/template/cache/altlinux-test.tar
3. Use libvirt with (hypothetical) XML:
<domain type="openvz">
<name>100</name>
<memory>1</memory>
<os><type>exe</type></os>
<devices>
<filesystem type="template">
<source name="altlinux-test"/>
<target dir="/"/>
</filesystem>
</devices>
</domain>
-----------
Example of creating a machine with default config:
1. Ensure there is no /etc/vz/conf/ve-altlinux-test.conf-sample
2. Create /var/lib/vz/template/cache/altlinux-test.tar
3. Use libvirt with (the same as above) XML file
-----------
15 years, 8 months
[libvirt] error in libvirt.py from libvirt-0.6.1 ?
by Gerrit Slomma
Hello
Is there a paticular reason for having "def migrate" two times in
libvirt.py?
The first occurence is on line 345 with parameters (self, dconn, flags,
dname, uri, bandwidth)
The second occurence is on line 1102 with parameters (self, domain,
flags, dname, uri, bandwidth)
Which one is correct?
And i am no python programmer in the least, but isn't the ret set false?
ret = libvirtmod.virDomainMigrate(domain__o, self._o, flags, dname, uri,
bandwidth)
That doesn't correspond to the def some above this earlier.
diff /tmp/migrate_1st_occurance /tmp/migrate_2nd_occurance
1c1
< def migrate(self, dconn, flags, dname, uri, bandwidth):
---
> def migrate(self, domain, flags, dname, uri, bandwidth):
31,34c31,34
< if dconn is None: dconn__o = None
< else: dconn__o = dconn._o
< ret = libvirtmod.virDomainMigrate(self._o, dconn__o, flags,
dname, uri, bandwidth)
< if ret is None:raise libvirtError('virDomainMigrate() failed',
dom=self)
---
> if domain is None: domain__o = None
> else: domain__o = domain._o
> ret = libvirtmod.virDomainMigrate(domain__o, self._o, flags,
dname, uri, bandwidth)
> if ret is None:raise libvirtError('virDomainMigrate()
failed', conn=self)
15 years, 9 months
[libvirt] [PATCH 0/1] SCSI host pools
by David Allan
Hi All,
Here is reworked SCSI host pool code. I have tested it with FC, iSCSI
and SATA, and it works correctly in all those cases. I have not tried
parallel SCSI, but I don't see any reason why it wouldn't work there
also, as it should be transport independent. This patch is so
different from the earlier revision that a diff from the earlier
version would be pointless, and I have only included a patch against
the current head.
Dave
15 years, 9 months
