August 2017 - Devel - libvirt List Archives

[libvirt] [libvirt-go PATCH] Add MigrateGetMaxDowntime API
by John Ferlan 28 Aug '17

28 Aug '17

Signed-off-by: John Ferlan <jferlan(a)redhat.com> --- This is a "best guess" effort - basically copied some previous examples from recent comments, built, and ran the same test that the CI build test runs. domain.go | 15 +++++++++++++++ 1 file changed, 15 insertions(+) diff --git a/domain.go b/domain.go index cc786dd..f83aa31 100644 --- a/domain.go +++ b/domain.go @@ -2319,6 +2319,21 @@ func (d *Domain) MigrateSetMaxSpeed(speed uint64, flags uint32) error { return nil } +func (d *Domain) MigrateGetMaxDowntime(flags uint32) (uint64, error) { + var downtime C.ulonglong + + if C.LIBVIR_VERSION_NUMBER < 3007000 { + return 0, GetNotImplementedError("virDomainMigrateGetMaxDowntime") + } + + ret := C.virDomainMigrateGetMaxDowntime(d.ptr, &downtime, C.uint(flags)) + if ret == -1 { + return 0, GetLastError() + } + + return uint64(downtime), nil +} + func (d *Domain) MigrateSetMaxDowntime(downtime uint64, flags uint32) error { ret := C.virDomainMigrateSetMaxDowntime(d.ptr, C.ulonglong(downtime), C.uint(flags)) if ret == -1 { -- 2.9.5

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[libvirt] [libvirt-python PATCH 0/2] Python bindings for virDomainMigrateGetMaxDowntime
by John Ferlan 28 Aug '17

28 Aug '17

Implement the bindings similar to previous such implementations for Compression cache (commit id's 7465d31bb and feae4e052) John Ferlan (2): Introduce virDomainMigrateGetMaxDowntime API Implement virDomainMigrateGetMaxDowntime generator.py | 1 + libvirt-override-api.xml | 7 +++++++ libvirt-override.c | 33 +++++++++++++++++++++++++++++++++ 3 files changed, 41 insertions(+) -- 2.9.5

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[libvirt] [libvirt-perl PATCH] Add migrate_get_max_downtime
by John Ferlan 28 Aug '17

28 Aug '17

Add new API for 3.7 pushed code for virDomainMigrateGetMaxDowntime Signed-off-by: John Ferlan <jferlan(a)redhat.com> --- Changes | 1 + Virt.xs | 15 +++++++++++++++ lib/Sys/Virt/Domain.pm | 6 ++++++ 3 files changed, 22 insertions(+) diff --git a/Changes b/Changes index e7f6cde..a3e507f 100644 --- a/Changes +++ b/Changes @@ -3,6 +3,7 @@ Revision history for perl module Sys::Virt 3.7.0 2017-00-00 - Add VIR_FROM_RESCTRL constant + - Add migrate_get_max_downtime 3.5.0 2017-07-06 diff --git a/Virt.xs b/Virt.xs index d3019ee..11c3d8f 100644 --- a/Virt.xs +++ b/Virt.xs @@ -5325,6 +5325,21 @@ migrate_set_max_downtime(dom, downtime, flags=0) _croak_error(); +SV * +migrate_get_max_downtime(dom, flags=0) + virDomainPtr dom; + unsigned int flags; + PREINIT: + unsigned long long downtime; + CODE: + if (virDomainMigrateGetMaxDowntime(dom, &downtime, flags) < 0) + _croak_error(); + + RETVAL = virt_newSVull(downtime); + OUTPUT: + RETVAL + + void migrate_set_max_speed(dom, bandwidth, flags=0) virDomainPtr dom; diff --git a/lib/Sys/Virt/Domain.pm b/lib/Sys/Virt/Domain.pm index 20ecf9f..030e1e3 100644 --- a/lib/Sys/Virt/Domain.pm +++ b/lib/Sys/Virt/Domain.pm @@ -1254,6 +1254,12 @@ at the cost of longer time blackout for the guest OS at the switch over point. The C<downtime> parameter is measured in milliseconds. The C<$flags> parameter is currently unused and defaults to zero. +=item $downtime = $dom->migrate_get_max_downtime($flags=0) +Get the current value of the maximum downtime allowed during a +migration of a guest. The returned <downtime> value is measured +in milliseconds. The C<$flags> parameter is currently unused and +defaults to zero. + =item $dom->migrate_set_max_speed($bandwidth, $flags=0) Set the maximum allowed bandwidth during migration of the guest. -- 2.9.5

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[libvirt] [PATCH v4 0/7] Add new APIs to edit xml configuration of managed save state of a domain
by Kothapally Madhu Pavan 28 Aug '17

28 Aug '17

managedsave command offloads the user from managing the save state file. It does not need the user to specify saved state file location, all it takes is domain name to identify. This makes it much more comfortable to use in emergency where immediate shutdowm is needed. But it doesn't provide a way to edit XML description of the save state file without user going through an extra effort to search manually where the file actually exists. The series aims to overcome the above constraints by adding new APIs and commands to seemlessly edit the managed save state XML description using just the domain name. The Patches mainly make use of the save-image-edit code flow only to simplify the above use case. This patch set provides capability to Dump and Edit the XML configuration associated with a saved state file of a domain which was created by the managedsave command. The new command carry the similar options as the save-image-<XXX> commands to change the running state as to paused state or running on start. This is equivalent to: virsh managedsave-dumpxml domain-name > state-file.xml vi state-file.xml (or make changes with your other text editor) virsh managedsave-define domain-name state-file-xml or you can simply use: virsh managedsave-edit domain-name It's always better when we get more. Changes since v3: - refracted version references from 3.6.0 to 3.7.0 - fixed typo in error message. Changes since v2: - refracted version references from 3.5.0 to 3.6.0 Changes since v1: - qemu implementation called directly rather than going through driver pointer in qemuDomainManagedSaveDefineXML. - check whether the managed save state file exists and report a error if it doesn't. Kothapally Madhu Pavan (7): lib: Add API to dump xml configuration of managed save state domain lib: Add API to edit domain's managed save state xml configuration qemu: Implement qemuDomainManagedSaveGetXMLDesc qemu: Implement qemuDomainManagedSaveDefineXML virsh: Implement managedsave-define command virsh: Implement managedsave-dumpxml command virsh: Implement managedsave-edit command include/libvirt/libvirt-domain.h | 6 ++ src/driver-hypervisor.h | 11 +++ src/libvirt-domain.c | 107 ++++++++++++++++++++ src/libvirt_public.syms | 6 ++ src/qemu/qemu_driver.c | 87 ++++++++++++++++ src/remote/remote_driver.c | 2 + src/remote/remote_protocol.x | 31 +++++- src/remote_protocol-structs | 14 +++ tools/virsh-domain.c | 207 +++++++++++++++++++++++++++++++++++++++ tools/virsh.pod | 41 ++++++++ 10 files changed, 511 insertions(+), 1 deletion(-) -- 1.8.3.1

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[libvirt] [PATCH] maint: correct quoting for gl_WARN_ADD
by Eric Blake 28 Aug '17

28 Aug '17

3 out of 4 uses of gl_WARN_ADD() were incorrectly adding "" around the argument, which in turn resulted in the argument being used unquoted (configure had gl_positive=""-fstack-protector-all"", rather than the intended gl_positive="-fstack-protector-all"). Signed-off-by: Eric Blake <eblake(a)redhat.com> --- m4/virt-compile-warnings.m4 | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/m4/virt-compile-warnings.m4 b/m4/virt-compile-warnings.m4 index 7b56115ce6..e8f1351260 100644 --- a/m4/virt-compile-warnings.m4 +++ b/m4/virt-compile-warnings.m4 @@ -194,8 +194,8 @@ AC_DEFUN([LIBVIRT_COMPILE_WARNINGS],[ # This should be < 256 really. Currently we're down to 4096, # but using 1024 bytes sized buffers (mostly for virStrerror) # stops us from going down further - gl_WARN_ADD(["-Wframe-larger-than=4096"], [STRICT_FRAME_LIMIT_CFLAGS]) - gl_WARN_ADD(["-Wframe-larger-than=25600"], [RELAXED_FRAME_LIMIT_CFLAGS]) + gl_WARN_ADD([-Wframe-larger-than=4096], [STRICT_FRAME_LIMIT_CFLAGS]) + gl_WARN_ADD([-Wframe-larger-than=25600], [RELAXED_FRAME_LIMIT_CFLAGS]) # Extra special flags dnl -fstack-protector stuff passes gl_WARN_ADD with gcc @@ -250,7 +250,7 @@ AC_DEFUN([LIBVIRT_COMPILE_WARNINGS],[ *-fstack-protector-strong*) ;; *) - gl_WARN_ADD(["-fstack-protector-all"]) + gl_WARN_ADD([-fstack-protector-all]) ;; esac ;; -- 2.13.5

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[libvirt] [PATCH] daemon: logging: Fix --verbose option being ignored by the daemon
by Erik Skultety 28 Aug '17

28 Aug '17

Commit 94c465d0 refactored the logging setup phase but introduced an issue, where the daemon ignores verbose mode when there are no outputs defined and the default must be used. The problem is that the default output was determined too early, thus ignoring the potential '--verbose' option taking effect. This patch postpones the creation of the default output to the very last moment when nothing else can change. Since the default output is only created during the init phase, it's safe to leave the pointer as NULL for a while, but it will be set eventually, thus not affecting runtime. Patch also adjusts both the other daemons. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1457193 Signed-off-by: Erik Skultety <eskultet(a)redhat.com> --- daemon/libvirtd.c | 21 +++++++++++++-------- src/locking/lock_daemon.c | 21 +++++++++++++-------- src/logging/log_daemon.c | 21 +++++++++++++-------- src/util/virlog.c | 7 +++++++ 4 files changed, 46 insertions(+), 24 deletions(-) diff --git a/daemon/libvirtd.c b/daemon/libvirtd.c index 7e5d7af69..589b32192 100644 --- a/daemon/libvirtd.c +++ b/daemon/libvirtd.c @@ -615,19 +615,15 @@ daemonSetupLogging(struct daemonConfig *config, * Libvirtd's order of precedence is: * cmdline > environment > config * - * The default output is applied only if there was no setting from either - * the config or the environment. Because we don't have a way to determine - * if the log level has been set, we must process variables in the opposite + * Given the precedence, we must process the variables in the opposite * order, each one overriding the previous. */ if (config->log_level != 0) virLogSetDefaultPriority(config->log_level); - if (virLogSetDefaultOutput("libvirtd.log", godaemon, privileged) < 0) - return -1; - - /* In case the config is empty, the filters become empty and outputs will - * be set to default + /* In case the config is empty, both filters and outputs will become empty, + * however we can't start with empty outputs, thus we'll need to define and + * setup a default one. */ ignore_value(virLogSetFilters(config->log_filters)); ignore_value(virLogSetOutputs(config->log_outputs)); @@ -641,6 +637,15 @@ daemonSetupLogging(struct daemonConfig *config, if ((verbose) && (virLogGetDefaultPriority() > VIR_LOG_INFO)) virLogSetDefaultPriority(VIR_LOG_INFO); + /* Define the default output. This is only applied if there was no setting + * from either the config or the environment. + */ + if (virLogSetDefaultOutput("libvirtd.log", godaemon, privileged) < 0) + return -1; + + if (virLogGetNbOutputs() == 0) + virLogSetOutputs(virLogGetDefaultOutput()); + return 0; } diff --git a/src/locking/lock_daemon.c b/src/locking/lock_daemon.c index 12485e966..6fbbf4b3d 100644 --- a/src/locking/lock_daemon.c +++ b/src/locking/lock_daemon.c @@ -460,19 +460,15 @@ virLockDaemonSetupLogging(virLockDaemonConfigPtr config, * Libvirtd's order of precedence is: * cmdline > environment > config * - * The default output is applied only if there was no setting from either - * the config or the environment. Because we don't have a way to determine - * if the log level has been set, we must process variables in the opposite + * Given the precedence, we must process the variables in the opposite * order, each one overriding the previous. */ if (config->log_level != 0) virLogSetDefaultPriority(config->log_level); - if (virLogSetDefaultOutput("virtlockd.log", godaemon, privileged) < 0) - return -1; - - /* In case the config is empty, the filters become empty and outputs will - * be set to default + /* In case the config is empty, both filters and outputs will become empty, + * however we can't start with empty outputs, thus we'll need to define and + * setup a default one. */ ignore_value(virLogSetFilters(config->log_filters)); ignore_value(virLogSetOutputs(config->log_outputs)); @@ -486,6 +482,15 @@ virLockDaemonSetupLogging(virLockDaemonConfigPtr config, if ((verbose) && (virLogGetDefaultPriority() > VIR_LOG_INFO)) virLogSetDefaultPriority(VIR_LOG_INFO); + /* Define the default output. This is only applied if there was no setting + * from either the config or the environment. + */ + if (virLogSetDefaultOutput("virtlockd.log", godaemon, privileged) < 0) + return -1; + + if (virLogGetNbOutputs() == 0) + virLogSetOutputs(virLogGetDefaultOutput()); + return 0; } diff --git a/src/logging/log_daemon.c b/src/logging/log_daemon.c index d878efa63..5a136c59d 100644 --- a/src/logging/log_daemon.c +++ b/src/logging/log_daemon.c @@ -388,19 +388,15 @@ virLogDaemonSetupLogging(virLogDaemonConfigPtr config, * Libvirtd's order of precedence is: * cmdline > environment > config * - * The default output is applied only if there was no setting from either - * the config or the environment. Because we don't have a way to determine - * if the log level has been set, we must process variables in the opposite + * Given the precedence, we must process the variables in the opposite * order, each one overriding the previous. */ if (config->log_level != 0) virLogSetDefaultPriority(config->log_level); - if (virLogSetDefaultOutput("virtlogd.log", godaemon, privileged) < 0) - return -1; - - /* In case the config is empty, the filters become empty and outputs will - * be set to default + /* In case the config is empty, both filters and outputs will become empty, + * however we can't start with empty outputs, thus we'll need to define and + * setup a default one. */ ignore_value(virLogSetFilters(config->log_filters)); ignore_value(virLogSetOutputs(config->log_outputs)); @@ -414,6 +410,15 @@ virLogDaemonSetupLogging(virLogDaemonConfigPtr config, if ((verbose) && (virLogGetDefaultPriority() > VIR_LOG_INFO)) virLogSetDefaultPriority(VIR_LOG_INFO); + /* Define the default output. This is only applied if there was no setting + * from either the config or the environment. + */ + if (virLogSetDefaultOutput("virtlogd.log", godaemon, privileged) < 0) + return -1; + + if (virLogGetNbOutputs() == 0) + virLogSetOutputs(virLogGetDefaultOutput()); + return 0; } diff --git a/src/util/virlog.c b/src/util/virlog.c index 2228cf645..d45a451a7 100644 --- a/src/util/virlog.c +++ b/src/util/virlog.c @@ -1840,6 +1840,13 @@ virLogSetOutputs(const char *src) if (src && *src) outputstr = src; + /* This can only happen during daemon init when the default output is not + * determined yet. It's safe to do, since it's the only place setting the + * default output. + */ + if (!outputstr) + return 0; + if ((noutputs = virLogParseOutputs(outputstr, &outputs)) < 0) goto cleanup; -- 2.13.3

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[libvirt] [PATCH v2] qemu: Handle host devices not being available better
by Andrea Bolognani 28 Aug '17

28 Aug '17

We can't retrieve the isolation group of a device that's not present in the system. However, it's very common for VFs to be created late in the boot, so they might not be present yet when libvirtd starts, which would cause the guests using them to disappear. Moreover, for other architectures and even ppc64 before isolation groups were introduced, it's considered perfectly fine to configure a guest to use a device that's not yet (or no longer) available to the host, with the obvious caveat that such a guest won't be able to start before the device is available. In order to be consistent, when a device's isolation group can't be determined fall back to not isolating it rather than erroring out or, worse, making the guest disappear. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1484254 Signed-off-by: Andrea Bolognani <abologna(a)redhat.com> --- Changes from [v1]: * rewrite to always skip on error [v1] https://www.redhat.com/archives/libvir-list/2017-August/msg00729.html src/qemu/qemu_domain_address.c | 29 +++++++++++------------------ 1 file changed, 11 insertions(+), 18 deletions(-) diff --git a/src/qemu/qemu_domain_address.c b/src/qemu/qemu_domain_address.c index 16bf0cdf9..f27d0ce8e 100644 --- a/src/qemu/qemu_domain_address.c +++ b/src/qemu/qemu_domain_address.c @@ -982,8 +982,6 @@ int qemuDomainFillDeviceIsolationGroup(virDomainDefPtr def, virDomainDeviceDefPtr dev) { - int ret = -1; - /* Only host devices need their isolation group to be different from * the default. Interfaces of type hostdev are just host devices in * disguise, but we don't need to handle them separately because for @@ -1012,12 +1010,11 @@ qemuDomainFillDeviceIsolationGroup(virDomainDefPtr def, tmp = virPCIDeviceAddressGetIOMMUGroupNum(hostAddr); if (tmp < 0) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("Can't look up isolation group for host device " - "%04x:%02x:%02x.%x"), - hostAddr->domain, hostAddr->bus, - hostAddr->slot, hostAddr->function); - goto cleanup; + VIR_WARN("Can't look up isolation group for host device " + "%04x:%02x:%02x.%x, device won't be isolated", + hostAddr->domain, hostAddr->bus, + hostAddr->slot, hostAddr->function); + goto skip; } /* The isolation group for a host device is its IOMMU group, @@ -1057,12 +1054,11 @@ qemuDomainFillDeviceIsolationGroup(virDomainDefPtr def, tmp = qemuDomainFindUnusedIsolationGroup(def); if (tmp == 0) { - virReportError(VIR_ERR_INTERNAL_ERROR, - _("Can't obtain usable isolation group for " - "interface configured to use hostdev-backed " - "network '%s'"), - iface->data.network.name); - goto cleanup; + VIR_WARN("Can't obtain usable isolation group for interface " + "configured to use hostdev-backed network '%s', " + "device won't be isolated", + iface->data.network.name); + goto skip; } info->isolationGroup = tmp; @@ -1073,10 +1069,7 @@ qemuDomainFillDeviceIsolationGroup(virDomainDefPtr def, } skip: - ret = 0; - - cleanup: - return ret; + return 0; } -- 2.13.5

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[libvirt] [libvirt-php PATCH v2 00/11] Refactor into smaller components
by Dawid Zamirski 28 Aug '17

28 Aug '17

As per [1], this patch series splits up the large libvirt-php.c into components that (attempts) to resemble the structure of the libvirt project. Each patch successive patch was compile-tested while the whole series was verified with "make check" and a simple custom written PHP script. Changes from v1 [2]: * rebase on master * include PHP headers in util.h instead of libvirt-php.h this makes header inter-dependencies easier to manage/understand * also test each patch on PHP 5 [1] https://www.redhat.com/archives/libvir-list/2017-June/msg00991.html [2] https://www.redhat.com/archives/libvir-list/2017-August/msg00046.html Dawid Zamirski (11): Move PHP version compat macros to utils.h Split up the bindings for libvirt connection API Split up the bindings for libvirt node API Split up the bindings for libvirt stream API Split up the bindings for libvirt domain API Split up the bindings for libvirt network API Split up the bindings for libvirt storage API Split up the bindings for libvirt snapshot API Split up the bindings for libvirt nodedev API Split up the bindings for libvirt NWFilter API Fix is_local_connection implementation. src/Makefile.am | 11 +- src/libvirt-connection.c | 886 +++++ src/libvirt-connection.h | 81 + src/libvirt-domain.c | 3344 +++++++++++++++++ src/libvirt-domain.h | 208 ++ src/libvirt-network.c | 587 +++ src/libvirt-network.h | 73 + src/libvirt-node.c | 305 ++ src/libvirt-node.h | 23 + src/libvirt-nodedev.c | 340 ++ src/libvirt-nodedev.h | 54 + src/libvirt-nwfilter.c | 415 +++ src/libvirt-nwfilter.h | 66 + src/libvirt-php.c | 9277 ++++------------------------------------------ src/libvirt-php.h | 496 +-- src/libvirt-snapshot.c | 244 ++ src/libvirt-snapshot.h | 58 + src/libvirt-storage.c | 1130 ++++++ src/libvirt-storage.h | 137 + src/libvirt-stream.c | 230 ++ src/libvirt-stream.h | 39 + src/util.h | 200 +- 22 files changed, 9282 insertions(+), 8922 deletions(-) create mode 100644 src/libvirt-connection.c create mode 100644 src/libvirt-connection.h create mode 100644 src/libvirt-domain.c create mode 100644 src/libvirt-domain.h create mode 100644 src/libvirt-network.c create mode 100644 src/libvirt-network.h create mode 100644 src/libvirt-node.c create mode 100644 src/libvirt-node.h create mode 100644 src/libvirt-nodedev.c create mode 100644 src/libvirt-nodedev.h create mode 100644 src/libvirt-nwfilter.c create mode 100644 src/libvirt-nwfilter.h create mode 100644 src/libvirt-snapshot.c create mode 100644 src/libvirt-snapshot.h create mode 100644 src/libvirt-storage.c create mode 100644 src/libvirt-storage.h create mode 100644 src/libvirt-stream.c create mode 100644 src/libvirt-stream.h -- 2.13.3

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[libvirt] Schedule for next release
by Daniel Veillard 28 Aug '17

28 Aug '17

I'm a little behind, I was on vacations last week and kind of forgot ... So I think the best will be to enter freeze tomorrow morning (29 Aug), then have an RC2 on the 31, and make the release over the week-end. I assume this works for everybody, otherwise raise your voice :-) thanks, Daniel -- Daniel Veillard | Red Hat Developers Tools http://developer.redhat.com/ veillard(a)redhat.com | libxml Gnome XML XSLT toolkit http://xmlsoft.org/ http://veillard.com/ | virtualization library http://libvirt.org/

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[libvirt] [PATCH 0/3] chardev and disk source format cleanup
by Pavel Hrdina 28 Aug '17

28 Aug '17

Pavel Hrdina (3): util: introduce virBufferSetChildIndent macro util: introduce virXMLFormatElement helper conf: don't close the source element inside different function src/conf/capabilities.c | 3 +- src/conf/cpu_conf.c | 3 +- src/conf/domain_conf.c | 125 ++++++++++++--------- src/libvirt_private.syms | 1 + src/util/virbuffer.h | 9 ++ src/util/virxml.c | 47 ++++++++ src/util/virxml.h | 6 + .../qemuxml2xmlout-seclabel-dynamic-labelskip.xml | 3 +- 8 files changed, 135 insertions(+), 62 deletions(-) -- 2.13.5

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