January 2018 - Devel - libvirt List Archives

[libvirt] [PATCH] m4: Don't enable bash-completion by default
by Michal Privoznik 12 Jan '18

12 Jan '18

Due to the way that check logic was written we basically enabled bash completion whenever readline was enabled. This is not right because it made bash-completion pkg-config module required. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- Even though this would qualify as a build breaker, I'd rather have another pair of eyes to look at it (sorry Cyclops). m4/virt-bash-completion.m4 | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/m4/virt-bash-completion.m4 b/m4/virt-bash-completion.m4 index e1ef58740..c8342176f 100644 --- a/m4/virt-bash-completion.m4 +++ b/m4/virt-bash-completion.m4 @@ -30,14 +30,10 @@ AC_DEFUN([LIBVIRT_CHECK_BASH_COMPLETION], [ AC_REQUIRE([LIBVIRT_CHECK_READLINE]) if test "x$with_readline" != "xyes" ; then - if test "x$with_bash_completion" != "xyes" ; then - with_bash_completion=no - else + if test "x$with_bash_completion" = "xyes" ; then AC_MSG_ERROR([readline is required for bash completion support]) - fi - else - if test "x$with_bash_completion" = "xcheck" ; then - with_bash_completion=yes + else + with_bash_completion=no fi fi -- 2.13.6

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[libvirt] [PATCH] qemu: Fix type of a completed job
by Jiri Denemark 12 Jan '18

12 Jan '18

Libvirt 3.7.0 and earlier libvirt reported a migration job as completed immediately after QEMU finished sending migration data at which point migration was not really complete yet. Commit v3.7.0-29-g3f2d6d829e fixed this, but caused a regression in reporting statistics for completed jobs which started reporting the job as still running. This happened because the completed job statistics including the job status are copied from the running job before we finally mark it as completed. Let's make sure QEMU_DOMAIN_JOB_STATUS_COMPLETED is always set in the completed job info even when the job has not finished yet. https://bugzilla.redhat.com/show_bug.cgi?id=1523036 Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com> --- src/qemu/qemu_migration.c | 9 ++++++--- 1 file changed, 6 insertions(+), 3 deletions(-) diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index c1ceb164d1..a56bc596ff 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -1646,8 +1646,10 @@ qemuMigrationWaitForCompletion(virQEMUDriverPtr driver, qemuDomainJobInfoUpdateTime(jobInfo); qemuDomainJobInfoUpdateDowntime(jobInfo); VIR_FREE(priv->job.completed); - if (VIR_ALLOC(priv->job.completed) == 0) + if (VIR_ALLOC(priv->job.completed) == 0) { *priv->job.completed = *jobInfo; + priv->job.completed->status = QEMU_DOMAIN_JOB_STATUS_COMPLETED; + } if (asyncJob != QEMU_ASYNC_JOB_MIGRATION_OUT && jobInfo->status == QEMU_DOMAIN_JOB_STATUS_QEMU_COMPLETED) @@ -5479,8 +5481,9 @@ qemuMigrationFinish(virQEMUDriverPtr driver, } if (dom) { - priv->job.completed = jobInfo; - jobInfo = NULL; + VIR_STEAL_PTR(priv->job.completed, jobInfo); + priv->job.completed->status = QEMU_DOMAIN_JOB_STATUS_COMPLETED; + if (qemuMigrationBakeCookie(mig, driver, vm, cookieout, cookieoutlen, QEMU_MIGRATION_COOKIE_STATS) < 0) VIR_WARN("Unable to encode migration cookie"); -- 2.15.1

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[libvirt] [PATCH] qemu: Ignore fallback CPU attribute on reconnect
by Jiri Denemark 12 Jan '18

12 Jan '18

When reconnecting to a running domain with host-model CPU started by old libvirt which did not store the actual CPU in the status XML, we need to ignore the fallback attribute to make sure we can translate the detected host CPU model to a model which is supported by the running QEMU. https://bugzilla.redhat.com/show_bug.cgi?id=1532980 Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com> --- src/qemu/qemu_process.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index 1a0923af36..25ec464d3e 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -3887,6 +3887,11 @@ qemuProcessUpdateCPU(virQEMUDriverPtr driver, virDomainCapsCPUModelsPtr models = NULL; int ret = -1; + /* The host CPU model comes from host caps rather than QEMU caps so + * fallback must be allowed no matter what the user specified in the XML. + */ + vm->def->cpu->fallback = VIR_CPU_FALLBACK_ALLOW; + if (qemuProcessFetchGuestCPU(driver, vm, asyncJob, &cpu, &disabled) < 0) goto cleanup; -- 2.15.1

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[libvirt] [RFC PATCH] lxc: Up back the veth interfaces by default
by Benjamin Cama 12 Jan '18

12 Jan '18

Upping an interface without configuring it is not a “cardinal sin” but a sensible way to achieve auto-configuration, e.g. with IPv6 SLAAC (RFC 4862). If NetworkManager has troube with interfaces having only a link-local address, this is a bug in NetworkManager, not in libvirt; it should listen for router advertisements to decide if some interface has global connectivity or not. With network interfaces up by default, stateless containers can be easily auto-configured through the network with SLAAC, without any specific configuration from the host system. This reverts commit c3cf3c43a0bb2e0e4909c32821e20f607635ec85. Signed-off-by: Benjamin Cama <b.cama(a)kerlink.fr> --- Hi, The patch that I propose to revert basically broke my workflow for light stateless containers, where they could be auto-configured on IPv6-only network through SLAAC. Of course, fully-fledged containers can bring up the interface themselves, but this behavior had previously been the default for quite some time, and is even indicated as default in src/conf/domain_conf.h ("Default link state (up)"). I cannot find any real justification for the patch I am reverting, and the bugzilla looks private so I can not comment on the NetworkManager behavior, which looks very buggy to me. Please tell me if you think this is wrong. Also, please Cc me, I am not subscribed. Regards. .mailmap | 1 + src/lxc/lxc_container.c | 7 +------ src/lxc/lxc_native.c | 10 ++++++---- 3 files changed, 8 insertions(+), 10 deletions(-) diff --git a/.mailmap b/.mailmap index 2f0fc901e..9dc3bff85 100644 --- a/.mailmap +++ b/.mailmap @@ -36,6 +36,7 @@ <gerd(a)egidy.de> <lists(a)egidy.de> <gerd(a)egidy.de> <gerd.von.egidy(a)intra2net.com> <benoar(a)dolka.fr> <benjamin.cama(a)telecom-bretagne.eu> +<benoar(a)dolka.fr> <b.cama(a)kerlink.fr> <zhlcindy(a)linux.vnet.ibm.com> <zhlcindy(a)gmail.com> <serge.hallyn(a)canonical.com> <serue(a)us.ibm.com> <pritesh.kothari(a)sun.com> <Pritesh.Kothari(a)Sun.COM> diff --git a/src/lxc/lxc_container.c b/src/lxc/lxc_container.c index 96fceaf1b..e546f0aaf 100644 --- a/src/lxc/lxc_container.c +++ b/src/lxc/lxc_container.c @@ -517,12 +517,7 @@ lxcContainerRenameAndEnableInterfaces(virDomainDefPtr vmDef, if (virNetDevSetName(veths[i], newname) < 0) goto cleanup; - /* Only enable this device if there is a reason to do so (either - * at least one IP was specified, or link state was set to up in - * the config) - */ - if (netDef->guestIP.nips || - netDef->linkstate == VIR_DOMAIN_NET_INTERFACE_LINK_STATE_UP) { + if (netDef->linkstate != VIR_DOMAIN_NET_INTERFACE_LINK_STATE_DOWN) { VIR_DEBUG("Enabling %s", newname); if (virNetDevSetOnline(newname, true) < 0) goto cleanup; diff --git a/src/lxc/lxc_native.c b/src/lxc/lxc_native.c index fdc03a57e..f77a2a910 100644 --- a/src/lxc/lxc_native.c +++ b/src/lxc/lxc_native.c @@ -349,10 +349,12 @@ lxcCreateNetDef(const char *type, if (VIR_ALLOC(net) < 0) goto error; - if (STREQ_NULLABLE(flag, "up")) - net->linkstate = VIR_DOMAIN_NET_INTERFACE_LINK_STATE_UP; - else - net->linkstate = VIR_DOMAIN_NET_INTERFACE_LINK_STATE_DOWN; + if (flag) { + if (STREQ(flag, "up")) + net->linkstate = VIR_DOMAIN_NET_INTERFACE_LINK_STATE_UP; + else + net->linkstate = VIR_DOMAIN_NET_INTERFACE_LINK_STATE_DOWN; + } if (VIR_STRDUP(net->ifname_guest, name) < 0) goto error; -- 2.11.0

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[libvirt] [BUG] virsh list didn,t clean vm when qemu destroy failed
by wang.guang55＠zte.com.cn 11 Jan '18

11 Jan '18

U3RlcHMgdG8gcmVwcm9kdWNlIA0KDQoNCjEgdmlyc2ggY3JlYXRlICB0ZXN0dm0gICANCg0KDQoy IGdkYiBhdHRjaCBxZW11LGFuZCBub3QgY29udGludWUNCg0KDQozICB2aXJzaCBkZXN0cm95ICB0 ZXN0dm0gICDvvIx0aGVuIGRlc3RvcnkgZmFpbGVk44CCDQoNCg0KNCBnZGIgcWVtdSBjb250aW51 ZSBhbmQgZXhpdCx0aGVuIHFlbXUgZXhpdC4NCg0KDQoNCg0KDQoNCltyb290QGhvc3QtMTIwLTUx IGhvbWVdIyBwcyAtYXV4IHxncmVwIHFlbXUNCg0KDQpyb290ICAgICAgMjgxNCAgMC4wICAwLjAg MTEyNjQ0ICAgOTU2IHB0cy8zICAgIFMrICAgMTE6NDAgICAwOjAwIGdyZXAgLS1jb2xvcj1hdXRv IHFlbXUNCg0KW3Jvb3RAaG9zdC0xMjAtNTEgaG9tZV0jIHZpcnNoIGxpc3QNCg0KIElkICAgIE5h bWUgICAgICAgICAgICAgICAgICAgICAgICAgICBTdGF0ZQ0KDQotLS0tLS0tLS0tLS0tLS0tLS0t LS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tLS0tDQoNCiAzICAgIHRlc3R2bSAgICAgICAg ICAgICAgICAgICAgICAgcnVubmluZw0KDQoNCg0KDQoNCg0KDQoNCg0KDQpjYW4gd2UgdHJpZ2dl ciBxZW11UHJvY2Vzc0hhbmRsZU1vbml0b3JFT0YgYWdhaW4gdG8gcmVtb3ZlIHZtPz8=

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[libvirt] [PATCH v2] treat host models as case-insensitive strings
by Scott Garfinkle 11 Jan '18

11 Jan '18

Qemu now allows case-insensitive specification of CPU models. This fixes the resulting problems on (at least) POWER arch machines. Patch V2: Change only the internal interface. This solves the actual problem at hand of reporting unsupported models now that qemu allows case-insensitive strings (e.g. "Power8" instead of "POWER8"). Signed-off-by: Scott Garfinkle <scottgar(a)linux.vnet.ibm.com> --- src/conf/domain_capabilities.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/conf/domain_capabilities.c b/src/conf/domain_capabilities.c index e7323a8..f7d9be5 100644 --- a/src/conf/domain_capabilities.c +++ b/src/conf/domain_capabilities.c @@ -271,7 +271,7 @@ virDomainCapsCPUModelsGet(virDomainCapsCPUModelsPtr cpuModels, return NULL; for (i = 0; i < cpuModels->nmodels; i++) { - if (STREQ(cpuModels->models[i].name, name)) + if (STRCASEEQ(cpuModels->models[i].name, name)) return cpuModels->models + i; } -- 1.8.3.1

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[libvirt] [PATCH] vsh: add a necessary assertion
by Marc Hartmayer 11 Jan '18

11 Jan '18

This fixes the compilation error (compiled with the compiler option '-03'). In file included from ../../tools/vsh.c:28:0: ../../tools/vsh.c: In function 'vshCommandOptStringQuiet': ../../tools/vsh.c:838:30: error: potential null pointer dereference [-Werror=null-dereference] assert(!needData || valid->type != VSH_OT_BOOL); Signed-off-by: Marc Hartmayer <mhartmay(a)linux.vnet.ibm.com> Reviewed-by: Boris Fiuczynski <fiuczy(a)linux.vnet.ibm.com> --- tools/vsh.c | 6 ++++-- 1 file changed, 4 insertions(+), 2 deletions(-) diff --git a/tools/vsh.c b/tools/vsh.c index e878119b988f..677eb9db3e41 100644 --- a/tools/vsh.c +++ b/tools/vsh.c @@ -816,8 +816,8 @@ vshCommandFree(vshCmd *cmd) * to the option if found, 0 with *OPT set to NULL if the name is * valid and the option is not required, -1 with *OPT set to NULL if * the option is required but not present, and assert if NAME is not - * valid (which indicates a programming error). No error messages are - * issued if a value is returned. + * valid or the option was not found (which indicates a programming + * error). No error messages are issued if a value is returned. */ static int vshCommandOpt(const vshCmd *cmd, const char *name, vshCmdOpt **opt, @@ -835,6 +835,8 @@ vshCommandOpt(const vshCmd *cmd, const char *name, vshCmdOpt **opt, break; valid++; } + assert(valid); + assert(!needData || valid->type != VSH_OT_BOOL); if (valid->flags & VSH_OFLAG_REQ) ret = -1; -- 2.13.4

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[libvirt] [PATCH] docs: Add missing encryption type
by John Ferlan 11 Jan '18

11 Jan '18

Update the text to include "luks" as a possible value. Signed-off-by: John Ferlan <jferlan(a)redhat.com> --- Pushed as trivial. docs/formatstorageencryption.html.in | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/docs/formatstorageencryption.html.in b/docs/formatstorageencryption.html.in index c4b209527..23efbf932 100644 --- a/docs/formatstorageencryption.html.in +++ b/docs/formatstorageencryption.html.in @@ -17,7 +17,8 @@ The top-level tag of volume encryption specification is <code>encryption</code>, with a mandatory attribute <code>format</code>. Currently defined values - of <code>format</code> are <code>default</code> and <code>qcow</code>. + of <code>format</code> are <code>default</code>, <code>qcow</code>, + and <code>luks</code>. Each value of <code>format</code> implies some expectations about the content of the <code>encryption</code> tag. Other format values may be defined in the future. -- 2.13.6

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[libvirt] [PATCH] tests: Break symlink loop
by Andrea Bolognani 11 Jan '18

11 Jan '18

distcheck, and possibly more stuff, breaks because of it. Signed-off-by: Andrea Bolognani <abologna(a)redhat.com> --- tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu0/node0 | 1 - tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu1/node0 | 1 - tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu2/node0 | 1 - tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu3/node0 | 1 - tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu4/node0 | 1 - tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu5/node0 | 1 - tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu6/node0 | 1 - tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu7/node0 | 1 - 8 files changed, 8 deletions(-) delete mode 120000 tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu0/node0 delete mode 120000 tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu1/node0 delete mode 120000 tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu2/node0 delete mode 120000 tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu3/node0 delete mode 120000 tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu4/node0 delete mode 120000 tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu5/node0 delete mode 120000 tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu6/node0 delete mode 120000 tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu7/node0 diff --git a/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu0/node0 b/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu0/node0 deleted file mode 120000 index 222b6af32..000000000 --- a/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu0/node0 +++ /dev/null @@ -1 +0,0 @@ -../../node/node0 \ No newline at end of file diff --git a/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu1/node0 b/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu1/node0 deleted file mode 120000 index 222b6af32..000000000 --- a/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu1/node0 +++ /dev/null @@ -1 +0,0 @@ -../../node/node0 \ No newline at end of file diff --git a/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu2/node0 b/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu2/node0 deleted file mode 120000 index 222b6af32..000000000 --- a/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu2/node0 +++ /dev/null @@ -1 +0,0 @@ -../../node/node0 \ No newline at end of file diff --git a/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu3/node0 b/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu3/node0 deleted file mode 120000 index 222b6af32..000000000 --- a/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu3/node0 +++ /dev/null @@ -1 +0,0 @@ -../../node/node0 \ No newline at end of file diff --git a/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu4/node0 b/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu4/node0 deleted file mode 120000 index 222b6af32..000000000 --- a/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu4/node0 +++ /dev/null @@ -1 +0,0 @@ -../../node/node0 \ No newline at end of file diff --git a/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu5/node0 b/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu5/node0 deleted file mode 120000 index 222b6af32..000000000 --- a/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu5/node0 +++ /dev/null @@ -1 +0,0 @@ -../../node/node0 \ No newline at end of file diff --git a/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu6/node0 b/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu6/node0 deleted file mode 120000 index 222b6af32..000000000 --- a/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu6/node0 +++ /dev/null @@ -1 +0,0 @@ -../../node/node0 \ No newline at end of file diff --git a/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu7/node0 b/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu7/node0 deleted file mode 120000 index 222b6af32..000000000 --- a/tests/virhostcpudata/linux-rhel74-moonshot/cpu/cpu7/node0 +++ /dev/null @@ -1 +0,0 @@ -../../node/node0 \ No newline at end of file -- 2.14.3

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[libvirt] [PATCH 0/5] Proof of concept for libvirt_qemu shim process
by Daniel P. Berrange 11 Jan '18

11 Jan '18

This patch series provides a proof of concept impl of the libvirt_qemu shim process I previously suggested here: https://www.redhat.com/archives/libvir-list/2017-November/msg00526.html The end goal is that we'll be able to fully isolate managemen to each QEMU process. ie all the virDomain* APIs would be executed inside the libvirt_qemu shim process. The QEMU driver in libvirtd would merely deal with aggregating the views / tracking central resource allocations. This series, however, does *not* do that. It is a very much smaller proof of concept, principally to: - Learn about pros/cons of different approaches for the long term goal - Provide a working PoC that can be used by the KubeVirt project such that they can spawn QEMU in a separate docker container than libvirtd is in, and inherit namespaces & cgroup placement, etc So, in this series, libvirtd functionality remains essentially unchanged. All I have done is provide a new binary 'libvirt_qemu' that accepts an XML file as input, launches the QEMU process directly, and then calls a new virDomainQemuReconnect() API to make libvirtd aware of its existance. At this point libvirtd can deal with it normally (some caveats listed in last patch). Usage is pretty simple - start libvirtd normally, then to launch a guest just use $ libvirt_qemu /path/to/xml/file It'll be associated with whatever libvirtd instance is running with the same user account. ie if you launch libvirt_qemu as root, it'll associate with qemu:///system. By default it will still place VMs in a dedicated cgroup. To inherit the cgroup of the caller, use <resource register="none"/> in the XML schema to turn off cgroup setup in libvirt_qemu. Having written this PoC, however, I'm less convinced that a bottom up, minimal impl which incrementally picks certain subsets of QEMU driver APIs to call is the right way to attack this problem. ie I was intending to have this minimal shim, then gradually move functionality into it from libvirtd. This feels like it is going to create alot of busy-work, delaying the end goal. I think instead a different approach might be better in the short term. Take the existing libvirtd code as a starting point, clone it to a libvirt_qemu and just start cutting out existing code to make a lighter weight binary that can only run a single guest, whose XML is passed in. We would still ultimately need to deal with much of the same issues, like getting VMs reported to the central libvirtd, but I think that might get to the end result, where all APIs run inside the shim, quicker. The key difference is that we could sooner focus on the harder problems of dealing with shared resource allocation tracking, instead of doing lots of code rewiring for API execution. Daniel P. Berrange (5): conf: allow different resource registration modes conf: expose APIs to let drivers load individual config / status files qemu: add a public API to trigger QEMU driver to connect to running guest qemu: implement the new virDomainQemuReconnect method qemu: implement the 'libvirt_qemu' shim for launching guests externally include/libvirt/libvirt-qemu.h | 4 + po/POTFILES.in | 1 + src/Makefile.am | 49 ++++ src/conf/domain_conf.c | 42 +++- src/conf/domain_conf.h | 12 + src/conf/virdomainobjlist.c | 98 +++++--- src/conf/virdomainobjlist.h | 17 ++ src/driver-hypervisor.h | 5 + src/libvirt-qemu.c | 48 ++++ src/libvirt_private.syms | 4 + src/libvirt_qemu.syms | 5 + src/lxc/lxc_cgroup.c | 34 +++ src/lxc/lxc_cgroup.h | 3 + src/lxc/lxc_process.c | 11 +- src/qemu/qemu_cgroup.c | 69 +++++- src/qemu/qemu_conf.h | 2 +- src/qemu/qemu_controller.c | 551 +++++++++++++++++++++++++++++++++++++++++ src/qemu/qemu_domain.c | 2 +- src/qemu/qemu_driver.c | 59 ++++- src/qemu/qemu_process.c | 31 ++- src/qemu/qemu_process.h | 1 + src/remote/qemu_protocol.x | 18 +- src/remote/remote_driver.c | 1 + src/util/vircgroup.c | 55 ++-- src/util/vircgroup.h | 10 +- 25 files changed, 1046 insertions(+), 86 deletions(-) create mode 100644 src/qemu/qemu_controller.c -- 2.14.3

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