March 2014 - Devel - libvirt List Archives

[libvirt] [PATCH] qemu: Forbid "sgio" support for SCSI generic host device
by Osier Yang 13 Mar '14

13 Mar '14

The kernel didn't support the unprivileged SGIO for SCSI generic device finally, and since it's unknow whether the way to support unprivileged SGIO for SCSI generic device will be similar as for SCSI block device or not, even it's simliar (I.e. via sysfs, for SCSI block device, it's /sys/dev/block/8\:0/queue/unpriv_sgio, for example), the file name might be different, So it's better not guess what it should be like currently. This patch removes the related code (mainly about the "shareable" checking on the "sgio" setting, it's not supported at all, why we leave checking code there? :-), and error out if "sgio" is specified in the domain config. --- src/qemu/qemu_conf.c | 87 ++++++++++++---------------------------------------- 1 file changed, 20 insertions(+), 67 deletions(-) diff --git a/src/qemu/qemu_conf.c b/src/qemu/qemu_conf.c index 2c397b0..ad6348d 100644 --- a/src/qemu/qemu_conf.c +++ b/src/qemu/qemu_conf.c @@ -739,12 +739,8 @@ qemuCheckSharedDevice(virHashTablePtr sharedDevices, virDomainDeviceDefPtr dev) { virDomainDiskDefPtr disk = NULL; - virDomainHostdevDefPtr hostdev = NULL; char *sysfs_path = NULL; char *key = NULL; - char *hostdev_name = NULL; - char *hostdev_path = NULL; - char *device_path = NULL; int val; int ret = 0; @@ -756,27 +752,11 @@ qemuCheckSharedDevice(virHashTablePtr sharedDevices, */ if (disk->device != VIR_DOMAIN_DISK_DEVICE_LUN) return 0; - - device_path = disk->src; - } else if (dev->type == VIR_DOMAIN_DEVICE_HOSTDEV) { - hostdev = dev->data.hostdev; - - if (!(hostdev_name = virSCSIDeviceGetDevName(NULL, - hostdev->source.subsys.u.scsi.adapter, - hostdev->source.subsys.u.scsi.bus, - hostdev->source.subsys.u.scsi.target, - hostdev->source.subsys.u.scsi.unit))) - goto cleanup; - - if (virAsprintf(&hostdev_path, "/dev/%s", hostdev_name) < 0) - goto cleanup; - - device_path = hostdev_path; } else { return 0; } - if (!(sysfs_path = virGetUnprivSGIOSysfsPath(device_path, NULL))) { + if (!(sysfs_path = virGetUnprivSGIOSysfsPath(disk->src, NULL))) { ret = -1; goto cleanup; } @@ -787,7 +767,7 @@ qemuCheckSharedDevice(virHashTablePtr sharedDevices, if (!virFileExists(sysfs_path)) goto cleanup; - if (!(key = qemuGetSharedDeviceKey(device_path))) { + if (!(key = qemuGetSharedDeviceKey(disk->src))) { ret = -1; goto cleanup; } @@ -798,7 +778,7 @@ qemuCheckSharedDevice(virHashTablePtr sharedDevices, if (!(virHashLookup(sharedDevices, key))) goto cleanup; - if (virGetDeviceUnprivSGIO(device_path, NULL, &val) < 0) { + if (virGetDeviceUnprivSGIO(disk->src, NULL, &val) < 0) { ret = -1; goto cleanup; } @@ -810,36 +790,25 @@ qemuCheckSharedDevice(virHashTablePtr sharedDevices, disk->sgio == VIR_DOMAIN_DEVICE_SGIO_UNFILTERED)) goto cleanup; - if (dev->type == VIR_DOMAIN_DEVICE_DISK) { - if (disk->type == VIR_DOMAIN_DISK_TYPE_VOLUME) { - virReportError(VIR_ERR_OPERATION_INVALID, - _("sgio of shared disk 'pool=%s' 'volume=%s' conflicts " - "with other active domains"), - disk->srcpool->pool, - disk->srcpool->volume); - } else { - virReportError(VIR_ERR_OPERATION_INVALID, - _("sgio of shared disk '%s' conflicts with other " - "active domains"), disk->src); - } + if (disk->type == VIR_DOMAIN_DISK_TYPE_VOLUME) { + virReportError(VIR_ERR_OPERATION_INVALID, + _("sgio of shared disk 'pool=%s' 'volume=%s' conflicts " + "with other active domains"), + disk->srcpool->pool, + disk->srcpool->volume); } else { virReportError(VIR_ERR_OPERATION_INVALID, - _("sgio of shared scsi host device '%s-%d-%d-%d' conflicts " - "with other active domains"), - hostdev->source.subsys.u.scsi.adapter, - hostdev->source.subsys.u.scsi.bus, - hostdev->source.subsys.u.scsi.target, - hostdev->source.subsys.u.scsi.unit); + _("sgio of shared disk '%s' conflicts with other " + "active domains"), disk->src); } ret = -1; cleanup: - VIR_FREE(hostdev_name); - VIR_FREE(hostdev_path); VIR_FREE(sysfs_path); VIR_FREE(key); return ret; } + bool qemuSharedDeviceEntryDomainExists(qemuSharedDeviceEntryPtr entry, const char *name, @@ -1116,8 +1085,6 @@ qemuSetUnprivSGIO(virDomainDeviceDefPtr dev) virDomainHostdevDefPtr hostdev = NULL; char *sysfs_path = NULL; char *path = NULL; - char *hostdev_name = NULL; - char *hostdev_path = NULL; int val = -1; int ret = 0; @@ -1135,22 +1102,15 @@ qemuSetUnprivSGIO(virDomainDeviceDefPtr dev) } else if (dev->type == VIR_DOMAIN_DEVICE_HOSTDEV) { hostdev = dev->data.hostdev; - if (!hostdev->shareable || - !(hostdev->mode == VIR_DOMAIN_HOSTDEV_MODE_SUBSYS && - hostdev->source.subsys.type == VIR_DOMAIN_HOSTDEV_SUBSYS_TYPE_SCSI)) - return 0; - - if (!(hostdev_name = virSCSIDeviceGetDevName(NULL, - hostdev->source.subsys.u.scsi.adapter, - hostdev->source.subsys.u.scsi.bus, - hostdev->source.subsys.u.scsi.target, - hostdev->source.subsys.u.scsi.unit))) - goto cleanup; - - if (virAsprintf(&hostdev_path, "/dev/%s", hostdev_name) < 0) + if (hostdev->source.subsys.u.scsi.sgio) { + virReportError(VIR_ERR_INTERNAL_ERROR, "%s", + _("'sgio' is not supported for SCSI " + "generic device yet ")); + ret = -1; goto cleanup; + } - path = hostdev_path; + return 0; } else { return 0; } @@ -1162,12 +1122,7 @@ qemuSetUnprivSGIO(virDomainDeviceDefPtr dev) } /* By default, filter the SG_IO commands, i.e. set unpriv_sgio to 0. */ - - if (dev->type == VIR_DOMAIN_DEVICE_DISK) - val = (disk->sgio == VIR_DOMAIN_DEVICE_SGIO_UNFILTERED); - else - val = (hostdev->source.subsys.u.scsi.sgio == - VIR_DOMAIN_DEVICE_SGIO_UNFILTERED); + val = (disk->sgio == VIR_DOMAIN_DEVICE_SGIO_UNFILTERED); /* Do not do anything if unpriv_sgio is not supported by the kernel and the * whitelist is enabled. But if requesting unfiltered access, always call @@ -1179,8 +1134,6 @@ qemuSetUnprivSGIO(virDomainDeviceDefPtr dev) cleanup: VIR_FREE(sysfs_path); - VIR_FREE(hostdev_name); - VIR_FREE(hostdev_path); return ret; } -- 1.8.1.4

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[libvirt] [PATCH] docs: add VMmanager to web apps
by Martin Kletzander 13 Mar '14

13 Mar '14

This is a request for adding a VMmanager application as requested and described by Ksenya Phil. Signed-off-by: Ksenya Phil <philka2003(a)mail.ru> Signed-off-by: Martin Kletzander <mkletzan(a)redhat.com> --- docs/apps.html.in | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/docs/apps.html.in b/docs/apps.html.in index 7b581db..86e45fc 100644 --- a/docs/apps.html.in +++ b/docs/apps.html.in @@ -393,6 +393,15 @@ with FreeIPA for Kerberos authentication, and in the future, certificate management. </dd> + <dt><a href="http://ispsystem.com/en/software/vmmanager">VMmanager</a></dt> + <dd> + VMmanager is a software solution for virtualization management + that can be used both for hosting virtual machines and + building a cloud. VMmanager can manage not only one server, + but a large cluster of hypervisors. It delivers a number of + functions, such as live migration that allows for load + balancing between cluster nodes, monitoring CPU, memory. + </dd> </dl> <h2><a name="mobile">Mobile applications</a></h2> -- 1.9.0

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[libvirt] [PATCH v14 00/49] write separate module for hostdev passthrough
by Chunyan Liu 13 Mar '14

13 Mar '14

These patches implements a separate module for hostdev passthrough so that it could be shared by different drivers and can maintain a global state of a host device. Patch 1: fix memory leak in virscsi.c Patch 2: improve virHostdevManager to use virOject wrapper and keep reference Patches 3~7: switch existing qemu and lxc driver to use virHostdevManager's lists, so that to maintain a global state of every host device. Patches 8~45 are to extract general code from qemu_hostdev.c piece by piece, make them reusable common APIs. Patches 46: unit test for the virhostdev common library Patches 47: add a hostdev backend type for xen Patches 48: add pci passthrough to libxl driver based on the common library Patches 49: change lxc to use common library APIs --- changes to v13: * change virHostdevManager, use virObject and keep reference, solve 'free' problem * add .hostdevMgr to qemu/lxc/libxl driver, get virHostdevManager in StateInitialize for once and keep reference, instead of getting it every time virHostdevManager is used. * fix v13 3/49 "qemu-reuse-hostdev-interfaces-to-avoid-duplicate.patch": update qemuPrepareHostUSBDevices parameters to specify hostdevs and nhostdevs, so that could be reused in qemu_hotplug. * rebase left patches Chunyan Liu (49): virscsi: fix memory leak virhostdev: use virObject to virHostdevManager to keep reference update qemuPrepareHostUSBDevices parameters to keep consistency qemu: reuse hostdev interfaces to avoid duplicate qemu: remove functions used internally only from qemu_hostdev.h qemu: use general virhostdev lists instead of its own lxc: use general virhostdev lists instead of its own qemu_hostdev: move cfg->relaxedACS as a flag qemu_hostdev: move ColdBoot as a flag qemu_hostdev: move netconfig file location to virhostdev stateDir extract general code from qemuPrepareHostdevPCIDevices rename qemu*NetConfigRestore/Replace to virHostdevNetConfigRestore/Replace rename qemuGet*PciHostDeviceList to virHostdevGet*PciHostDeviceList pass driver name as a parameter to virHostdevPrepareHostdevPCIDevices extract general code from qemuDomainReAttachHostdevDevices pass driver name as a parameter to virHostdevReAttachPCIDevices rename qemuReAttachPciDevice to virHostdevReAttachPciDevice move virHostdevPrepare(ReAttach)PCIDevices to virhostdev.c extract general code from qemuUpdateActivePciHostdevs extract general code from qemuUpdateActiveUsbHostdevs extract general code from qemuUpdateActiveScsiHostdevs pass driver_name as parameter of virHostdevUpdate*Hostdevs functions move virHostdevUpdate* functions to virhostdev.c extract general code from qemuPrepareHostUSBDevices rename qemu*USBDevices to virHostdev*USBDevices pass driver name to virHostdevPrepareUSBDevices move virHostdevPrepareHostUSBDevices to virhostdev.c extract general code from qemuPrepareHostSCSIDevices pass driver name as parameter to virHostdevPrepareSCSIDevices move virHostdevPrepareHostSCSIDevices to virhostdev.c extract general code from qemuDomainReAttachHostUsbDevices pass driver name as paramter to virHostdevReAttachUsbHostdevs move virHostdevReAttachUsbHostdevs to virhostdev.c extract general code from qemuDomainReAttachHostScsiDevices pass driver name as parameter to virHostdevReAttachScciHostdevs move virHostdevReAttachHostScsiDevices to virhostdev.c extract general code of NodeDeviceDetach extract general code of NodeDeviceReAttach extract general code of NodeDeviceReset move virHostdevNodeDevice* to virhostdev.c improve parameter name to let it more meaningful rename some function names to keep consistency improve virHostdevUpdate* parameters to make it more widely used add 3 wrapper functions for prepare/reattach/update domain hostdevs add parameter checks to common interfaces add unit test for new virhostdev common library change lxc_hostdev.c to use virhostdev common library APIs add hostdev pci backend type for xen add pci passthrough to libxl driver .gitignore | 1 + docs/schemas/domaincommon.rng | 1 + src/conf/domain_conf.c | 3 +- src/conf/domain_conf.h | 1 + src/libvirt_private.syms | 15 + src/libxl/libxl_conf.c | 63 ++ src/libxl/libxl_conf.h | 7 +- src/libxl/libxl_domain.c | 9 + src/libxl/libxl_driver.c | 454 +++++++++++- src/lxc/lxc_conf.h | 5 +- src/lxc/lxc_driver.c | 12 +- src/lxc/lxc_hostdev.c | 307 +------- src/qemu/qemu_command.c | 3 +- src/qemu/qemu_conf.h | 9 +- src/qemu/qemu_driver.c | 76 +- src/qemu/qemu_hostdev.c | 1203 ++----------------------------- src/qemu/qemu_hostdev.h | 29 +- src/qemu/qemu_hotplug.c | 78 +- src/qemu/qemu_process.c | 8 +- src/util/virhostdev.c | 1565 ++++++++++++++++++++++++++++++++++++++++- src/util/virhostdev.h | 96 +++ src/util/virscsi.c | 13 +- tests/Makefile.am | 5 + tests/virhostdevtest.c | 507 +++++++++++++ 24 files changed, 2832 insertions(+), 1638 deletions(-) create mode 100644 tests/virhostdevtest.c -- 1.9.0

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[libvirt] libvirt: [PATCH] libxl: Check for control_d string to decide about dom0
by Stefan Bader 13 Mar '14

13 Mar '14

I have been looking into a bug report (see BugLink) which reported libvirt to fail starting inside a Xen guest. Upon further investigation I found that some tools that help monitoring Xen guests will mount xenfs to /proc/xen. This will create a capabilities files there even if the guest is not dom0. However it will return nothing when reading from it. Ian, just to sanity check myself. I looked at the xenfs code and to me there only seem to be those two outcomes (either "control_d" for running in dom0 or notrhing if not). With the following patch applied, libvirt starts up correctly in the normal guests (with xenfs mounted) without initializing libxl. And also in dom0 where it still enables the libxl driver (if the xl toolstack is selected). -Stefan >From f11949caca6dfe1a802472a2a6d4fe760115ccc6 Mon Sep 17 00:00:00 2001 From: Stefan Bader <stefan.bader(a)canonical.com> Date: Wed, 12 Mar 2014 11:37:16 +0100 Subject: [PATCH] libxl: Check for control_d string to decide about dom0 As soon as any guest mounts xenfs to /proc/xen, there is a capabilities file in that directory. However it returns nothing when reading from it. Change the test to actually check the contents of the file. BugLink: http://bugs.launchpad.net/bugs/1248025 Signed-off-by: Stefan Bader <stefan.bader(a)canonical.com> --- src/libxl/libxl_driver.c | 14 ++++++++++++-- 1 file changed, 12 insertions(+), 2 deletions(-) diff --git a/src/libxl/libxl_driver.c b/src/libxl/libxl_driver.c index 65d80a2..844e828 100644 --- a/src/libxl/libxl_driver.c +++ b/src/libxl/libxl_driver.c @@ -944,6 +944,7 @@ libxlDriverShouldLoad(bool privileged) bool ret = false; virCommandPtr cmd; int status; + char *output = NULL; /* Don't load if non-root */ if (!privileged) { @@ -951,8 +952,17 @@ libxlDriverShouldLoad(bool privileged) return ret; } - /* Don't load if not running on a Xen control domain (dom0) */ - if (!virFileExists("/proc/xen/capabilities")) { + /* + * Don't load if not running on a Xen control domain (dom0). It is not + * sufficient to check for the file to exist as any guest can mount + * xenfs to /proc/xen. + */ + status = virFileReadAll("/proc/xen/capabilities", 10. &output); + if (status >= 0) { + status = strncmp(output, "control_d", 9); + } + VIR_FREE(output); + if (status) { VIR_INFO("No Xen capabilities detected, probably not running " "in a Xen Dom0. Disabling libxenlight driver"); -- 1.7.9.5

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[libvirt] [PATCH] Fix Invalid write in virCryptoHashString()
by Nehal J Wani 13 Mar '14

13 Mar '14

While running vircryptotest, it was found that valgrind pointed out the following error: ==27453== Invalid write of size 1 ==27453== at 0x4C7D7C9: virCryptoHashString (vircrypto.c:76) ==27453== by 0x401C4E: testCryptoHash (vircryptotest.c:41) ==27453== by 0x402A11: virtTestRun (testutils.c:199) ==27453== by 0x401AD5: mymain (vircryptotest.c:76) ==27453== by 0x40318D: virtTestMain (testutils.c:782) ==27453== by 0x3E6CE1ED1C: (below main) (libc-start.c:226) ==27453== Address 0x51f0541 is 0 bytes after a block of size 65 alloc'd ==27453== at 0x4A0577B: calloc (vg_replace_malloc.c:593) ==27453== by 0x4C69F2E: virAllocN (viralloc.c:189) ==27453== by 0x4C7D76B: virCryptoHashString (vircrypto.c:69) ==27453== by 0x401C4E: testCryptoHash (vircryptotest.c:41) ==27453== by 0x402A11: virtTestRun (testutils.c:199) ==27453== by 0x401AD5: mymain (vircryptotest.c:76) ==27453== by 0x40318D: virtTestMain (testutils.c:782) ==27453== by 0x3E6CE1ED1C: (below main) (libc-start.c:226) ==27453== ...and many more --- The errors go away, if I either do: Line 76: (*output)[hashstrlen - 1] = '\0'; or Line 61: if (VIR_ALLOC_N(*output, hashstrlen + 1) < 0) But the second one seems less harmful, as anyway we are going to free that memory. src/util/vircrypto.c | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/src/util/vircrypto.c b/src/util/vircrypto.c index 3af3aa3..aa2b0c8 100644 --- a/src/util/vircrypto.c +++ b/src/util/vircrypto.c @@ -66,7 +66,7 @@ virCryptoHashString(virCryptoHash hash, return -1; } - if (VIR_ALLOC_N(*output, hashstrlen) < 0) + if (VIR_ALLOC_N(*output, hashstrlen + 1) < 0) return -1; for (i = 0; i < hashinfo[hash].hashlen; i++) { -- 1.7.1

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[libvirt] [PATCH] Fix type mismatch of virNetDev*NetConfig on non-Linux
by Ján Tomko 13 Mar '14

13 Mar '14

Commit b4bbaee changed char* to const char*, but omitted the non-Linux version. --- Pushed as a build breaker fix. src/util/virnetdev.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/util/virnetdev.c b/src/util/virnetdev.c index 9d8b7cf..55781b2 100644 --- a/src/util/virnetdev.c +++ b/src/util/virnetdev.c @@ -1802,11 +1802,11 @@ virNetDevLinkDump(const char *ifname ATTRIBUTE_UNUSED, } int -virNetDevReplaceNetConfig(char *linkdev ATTRIBUTE_UNUSED, +virNetDevReplaceNetConfig(const char *linkdev ATTRIBUTE_UNUSED, int vf ATTRIBUTE_UNUSED, const virMacAddr *macaddress ATTRIBUTE_UNUSED, int vlanid ATTRIBUTE_UNUSED, - char *stateDir ATTRIBUTE_UNUSED) + const char *stateDir ATTRIBUTE_UNUSED) { virReportSystemError(ENOSYS, "%s", _("Unable to replace net config on this platform")); @@ -1815,9 +1815,9 @@ virNetDevReplaceNetConfig(char *linkdev ATTRIBUTE_UNUSED, } int -virNetDevRestoreNetConfig(char *linkdev ATTRIBUTE_UNUSED, +virNetDevRestoreNetConfig(const char *linkdev ATTRIBUTE_UNUSED, int vf ATTRIBUTE_UNUSED, - char *stateDir ATTRIBUTE_UNUSED) + const char *stateDir ATTRIBUTE_UNUSED) { virReportSystemError(ENOSYS, "%s", _("Unable to restore net config on this platform")); -- 1.8.3.2

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[libvirt] [PATCH] Load CPU map from builddir when run uninstalled
by Jiri Denemark 13 Mar '14

13 Mar '14

When libvirtd is run from a build directory without being installed, it should not depend on files from a libvirt package installed in the system. Not only because there may not be any libvirt installed at all. We already do a good job for plugins but cpu_map.xml was still loaded from the system. The Makefile.am change is necessary to make this all work from VPATH builds since libvirtd has no idea where to find libvirt sources. It only knows the path from which it was started, i.e, a builddir. https://bugzilla.redhat.com/show_bug.cgi?id=1074327 Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com> --- daemon/libvirtd.c | 7 ++++++- src/Makefile.am | 4 ++++ src/cpu/cpu_map.c | 3 +++ 3 files changed, 13 insertions(+), 1 deletion(-) diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c index 72f0e81..d91e1e9 100644 --- a/daemon/libvirtd.c +++ b/daemon/libvirtd.c @@ -103,6 +103,7 @@ #include "configmake.h" #include "virdbus.h" +#include "cpu/cpu_map.h" #if WITH_SASL virNetSASLContextPtr saslCtxt = NULL; @@ -1155,13 +1156,16 @@ int main(int argc, char **argv) { if (strstr(argv[0], "lt-libvirtd") || strstr(argv[0], "/daemon/.libs/libvirtd")) { char *tmp = strrchr(argv[0], '/'); + char *cpumap; if (!tmp) { fprintf(stderr, _("%s: cannot identify driver directory\n"), argv[0]); exit(EXIT_FAILURE); } *tmp = '\0'; char *driverdir; - if (virAsprintfQuiet(&driverdir, "%s/../../src/.libs", argv[0]) < 0) { + if (virAsprintfQuiet(&driverdir, "%s/../../src/.libs", argv[0]) < 0 || + virAsprintfQuiet(&cpumap, "%s/../../src/cpu/cpu_map.xml", + argv[0]) < 0) { fprintf(stderr, _("%s: initialization failed\n"), argv[0]); exit(EXIT_FAILURE); } @@ -1174,6 +1178,7 @@ int main(int argc, char **argv) { #ifdef WITH_DRIVER_MODULES virDriverModuleInitialize(driverdir); #endif + cpuMapOverride(cpumap); *tmp = '/'; /* Must not free 'driverdir' - it is still used */ } diff --git a/src/Makefile.am b/src/Makefile.am index 25d0370..306880b 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -977,6 +977,10 @@ libvirt_la_BUILT_LIBADD += libvirt_cpu.la libvirt_cpu_la_CFLAGS = \ -I$(top_srcdir)/src/conf $(AM_CFLAGS) libvirt_cpu_la_SOURCES = $(CPU_SOURCES) +libvirt_cpu_la_DEPENDENCIES = $(abs_builddir)/cpu/cpu_map.xml + +$(abs_builddir)/cpu/cpu_map.xml: + $(AM_V_GEN)ln -s $(srcdir)/cpu/cpu_map.xml $@ if WITH_VMX noinst_LTLIBRARIES += libvirt_vmx.la diff --git a/src/cpu/cpu_map.c b/src/cpu/cpu_map.c index 7c2bdec..f6c63d4 100644 --- a/src/cpu/cpu_map.c +++ b/src/cpu/cpu_map.c @@ -28,6 +28,7 @@ #include "cpu_map.h" #include "configmake.h" #include "virstring.h" +#include "virlog.h" #define VIR_FROM_THIS VIR_FROM_CPU @@ -86,6 +87,8 @@ int cpuMapLoad(const char *arch, int element; const char *mapfile = (cpumap ? cpumap : CPUMAPFILE); + VIR_DEBUG("Loading CPU map from %s", mapfile); + if (arch == NULL) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("undefined hardware architecture")); -- 1.9.0

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[libvirt] [PATCH] nwfilter: Add missing goto err_exit in error path
by Stefan Berger 12 Mar '14

12 Mar '14

From: Stefan Berger <stefanb(a)linux.vnet.ibm.com> https://bugzilla.redhat.com/show_bug.cgi?id=1071095 Add a missing goto err_exit in the error path where an unsupported value is assigned to the CTRL_IP_LEARNING key. Signed-off-by: Stefan Berger <stefanb(a)linux.vnet.ibm.com> --- src/nwfilter/nwfilter_gentech_driver.c | 1 + 1 file changed, 1 insertion(+) diff --git a/src/nwfilter/nwfilter_gentech_driver.c b/src/nwfilter/nwfilter_gentech_driver.c index e576dc4..5c3b25e 100644 --- a/src/nwfilter/nwfilter_gentech_driver.c +++ b/src/nwfilter/nwfilter_gentech_driver.c @@ -732,6 +732,7 @@ virNWFilterInstantiate(const unsigned char *vmuuid ATTRIBUTE_UNUSED, _("filter '%s' " "learning value '%s' invalid."), filter->name, learning); + goto err_exit; } } else goto err_unresolvable_vars; -- 1.8.1.4

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[libvirt] libvirtError: this function is not supported by the connection driver: virInterfaceDefineXML
by Sijo Jose 12 Mar '14

12 Mar '14

Hi, Could anyone help I'm getting the following error when I tried to add a new network interface. DETAILS Connection --------------------------- import libvirt conn = libvirt.open('qemu:///system') Interface XML ---------------------- <interface type="bridge" name="br0"> <start mode="onboot"/> <mtu size="1500"/> <protocol family="ipv4"> <dhcp/> </protocol> <bridge stp="off" delay="0.01"> <interface type="ethernet" name="eth0"> <mac address="ab:bb:cc:dd:ee:ff"/> </interface> <interface type="ethernet" name="eth1"/> </bridge> </interface> In [96]: conn.interfaceDefineXML(interfacexml,0) ---------------------------------------------------------------------------libvirtError Traceback (most recent call last)/home/saju/<ipython-input-96-0536ffe3fa23> in <module>()----> 1 conn.interfaceDefineXML(br1xml,0) /usr/lib/python2.7/dist-packages/libvirt.pyc in interfaceDefineXML(self, xml, flags) 2750 libvirtd. """ 2751 ret = libvirtmod.virInterfaceDefineXML(self._o, xml, flags)-> 2752 if ret is None:raise libvirtError('virInterfaceDefineXML() failed', conn=self) 2753 __tmp = virInterface(self, _obj=ret) 2754 return __tmp libvirtError: this function is not supported by the connection driver: virInterfaceDefineXML Regards Sijo Jose

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[libvirt] [PATCH] qemu.conf: Mention virtlockd in @lock_manager description
by Michal Privoznik 12 Mar '14

12 Mar '14

When I played with virtlockd I was stunned by lacking documentation. My frustration got bigger when I had to read the patches to get the correct value to set in qemu.conf. Moreover, from pure libvirt-pride I'm changing commented value from sanlock to lockd. We want to favor our own implementation after all. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- src/qemu/qemu.conf | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/src/qemu/qemu.conf b/src/qemu/qemu.conf index e436084..f0e802f 100644 --- a/src/qemu/qemu.conf +++ b/src/qemu/qemu.conf @@ -402,11 +402,13 @@ #allow_disk_format_probing = 1 -# To enable 'Sanlock' project based locking of the file -# content (to prevent two VMs writing to the same -# disk), uncomment this +# In order to prevent accidentally starting two domains that +# share one writable disk, libvirt offers two approaches for +# locking files. The first one is sanlock, the other one, +# virtlockd, is then our own implementation. Accepted values +# are "sanlock" and "lockd". # -#lock_manager = "sanlock" +#lock_manager = "lockd" -- 1.9.0

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