August 2020 - Devel - libvirt List Archives

[libvirt PATCH] util: cgroup: remove unused opts in virCgroupV2BindMount
by Ján Tomko 03 Aug '20

03 Aug '20

In virCgroupV2BindMount there is an unused variable containing what seem to be tmpfs mount options. Delete it. Unlike with cgroups v1, we do not create a tmpfs here. Signed-off-by: Ján Tomko <jtomko(a)redhat.com> --- src/util/vircgroupv2.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/src/util/vircgroupv2.c b/src/util/vircgroupv2.c index 80f596542c..bf6b4a298c 100644 --- a/src/util/vircgroupv2.c +++ b/src/util/vircgroupv2.c @@ -548,9 +548,8 @@ virCgroupV2KillRecursive(virCgroupPtr group, static int virCgroupV2BindMount(virCgroupPtr group, const char *oldroot, - const char *mountopts) + const char *mountopts G_GNUC_UNUSED) { - g_autofree char *opts = NULL; g_autofree char *src = NULL; VIR_DEBUG("Mounting cgroups at '%s'", group->unified.mountPoint); @@ -561,8 +560,6 @@ virCgroupV2BindMount(virCgroupPtr group, return -1; } - opts = g_strdup_printf("mode=755,size=65536%s", mountopts); - src = g_strdup_printf("%s%s", oldroot, group->unified.mountPoint); if (mount(src, group->unified.mountPoint, "none", MS_BIND, NULL) < 0) { -- 2.26.2

2 1

[libvirt PATCH] Remove unused variables
by Ján Tomko 03 Aug '20

03 Aug '20

These variables are only used for assignment and have no other effect. Signed-off-by: Ján Tomko <jtomko(a)redhat.com> --- Found by clang-analyzer. Just install the package with scan-build and run: ninja -C build scan-build (or some meson --reconfigure might be necessary. OTOH, I did not get ninja coverage to work so far.) src/conf/domain_conf.c | 4 +--- src/util/virdevmapper.c | 3 +-- 2 files changed, 2 insertions(+), 5 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index fd8cdb7695..69e0439e7e 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -8857,8 +8857,6 @@ virDomainHostdevDefParseXMLCaps(xmlNodePtr node G_GNUC_UNUSED, const char *type, virDomainHostdevDefPtr def) { - xmlNodePtr sourcenode; - /* @type is passed in from the caller rather than read from the * xml document, because it is specified in different places for * different kinds of defs - it is an attribute of @@ -8881,7 +8879,7 @@ virDomainHostdevDefParseXMLCaps(xmlNodePtr node G_GNUC_UNUSED, return -1; } - if (!(sourcenode = virXPathNode("./source", ctxt))) { + if (!virXPathNode("./source", ctxt)) { virReportError(VIR_ERR_XML_ERROR, "%s", _("Missing <source> element in hostdev device")); return -1; diff --git a/src/util/virdevmapper.c b/src/util/virdevmapper.c index a471504176..fe7f611496 100644 --- a/src/util/virdevmapper.c +++ b/src/util/virdevmapper.c @@ -162,7 +162,6 @@ virDMSanitizepath(const char *path) DIR *dh = NULL; const char *p; char *ret = NULL; - int rc; /* If a path is NOT provided then assume it's DM name */ p = strrchr(path, '/'); @@ -192,7 +191,7 @@ virDMSanitizepath(const char *path) if (virDirOpen(&dh, DEV_DM_DIR) < 0) return NULL; - while ((rc = virDirRead(dh, &ent, DEV_DM_DIR)) > 0) { + while (virDirRead(dh, &ent, DEV_DM_DIR) > 0) { g_autofree char *tmp = g_strdup_printf(DEV_DM_DIR "/%s", ent->d_name); if (stat(tmp, &sb[1]) == 0 && -- 2.26.2

2 1

[libvirt PATCH 0/3] Run more syntax checks
by Ján Tomko 03 Aug '20

03 Aug '20

Some were left out during the meson conversion. Ján Tomko (3): config.h: add a copyright blurb build-aux: set the PYTHON variable in the Makefile build-aux: add sc_ prefix to more syntax checks build-aux/Makefile.in | 1 + build-aux/meson.build | 1 + build-aux/syntax-check.mk | 18 +++++++++--------- config.h | 18 ++++++++++++++++++ 4 files changed, 29 insertions(+), 9 deletions(-) -- 2.26.2

2 5

[libvirt PATCH 0/6] Use more of GLib's g_str functions
by Ján Tomko 03 Aug '20

03 Aug '20

3 13

[libvirt PATCH 0/6] Clean up some includes
by Ján Tomko 03 Aug '20

03 Aug '20

2 7

[libvirt PATCH 0/8] Some cppcheck-inspired fixes
by Ján Tomko 03 Aug '20

03 Aug '20

At least I found a memleak. Ján Tomko (8): vz: remove redundant NULL pointer check Remove redundant conditions util: command: do not return after abort util: virhostmem: do not use scanf without field limits util: sync variable names between header and C files virsh: completer: use signed variable for XPathNodeSet errors tools: remove unread variables tools: virt-admin: do not leak daemon-log settings src/hypervisor/virhostdev.c | 2 +- src/libxl/xen_xl.c | 2 +- src/qemu/qemu_hotplug.c | 3 +-- src/qemu/qemu_process.c | 6 +++--- src/rpc/virnetsocket.c | 2 +- src/util/vircommand.c | 1 - src/util/virhostmem.c | 6 ++++-- src/util/virlease.c | 2 +- src/util/virresctrl.h | 2 +- src/util/virsocketaddr.h | 8 ++++---- src/vbox/vbox_common.c | 2 +- src/vz/vz_sdk.c | 8 ++++---- tools/virsh-completer-host.c | 4 ++-- tools/virsh-domain.c | 7 +++---- tools/virt-admin.c | 21 +++++++++------------ 15 files changed, 36 insertions(+), 40 deletions(-) -- 2.26.2

2 9

Release of libvirt-6.6.0
by Jiri Denemark 03 Aug '20

03 Aug '20

The 6.6.0 release of both libvirt and libvirt-python is tagged and signed tarballs and source RPMs are available at https://libvirt.org/sources/ https://libvirt.org/sources/python/ Thanks everybody who helped with this release by sending patches, reviewing, testing, or providing any other feedback. Your work is greatly appreciated. * New features * Allow configuring of ACPI NUMA HMAT Libvirt allows configuring ACPI Heterogeneous Memory Attribute Table to hint software running inside the guest on optimization. * esx: Add a ``type`` attribute for mac addresses. This attribute allows (when set to ``static``) ignoring VMWare checks of the MAC addresses that would generate a new one if they were in its OUI (00:0c:29). * conf: add control over COW for storage pool directories The storage pool code now attempts to disable COW by default on btrfs, but management applications may wish to override this behaviour. This is now possible via new ``cow`` element. * Improvements * esx: Change the NIC limit for recent virtualHW versions Specifying a virtualHW version greater or equal to 7 (ESXi 4.0) will allow you to use up to 10 NICs instead of 4 as it was previously. * qemu: Support encrypted TLS keys for NBD disks The secret key used for disks can now be encrypted similarly to TLS keys used for migration, chardev and others. * qemu: ``VIR_DOMAIN_EVENT_ID_BLOCK_THRESHOLD`` can now be registered for ``<mirror>`` The event can now be used also for block copy destinations by using the index of the ``<mirror>`` image. * qemu: consider available CPUs in ``vcpupin/emulatorpin`` output This patch changes the default bitmap of ``vcpupin`` and ``emulatorpin``, in the case of domains with static vcpu placement, all available CPUs instead of all possible CPUs are returned making these APIs consistent with the behavior of ``vcpuinfo``. * Bug fixes * virdevmapper: Don't use libdevmapper to obtain dependencies When building domain's private ``/dev`` in a namespace, libdevmapper was consulted for getting full dependency tree of domain's disks. However, this meant that libdevmapper opened ``/dev/mapper/control`` which wasn't closed and was leaked to QEMU. CVE-2020-14339 * qemu: Report correct ``index`` in ``VIR_DOMAIN_EVENT_ID_BLOCK_THRESHOLD`` Starting from libvirt 5.10 with QEMU 4.2 the ``VIR_DOMAIN_EVENT_ID_BLOCK_THRESHOLD`` event would report incorrect device ``index`` when reported for an image from the backing chain of a disk. * qemu: Don't fail active layer block commit or block copy in certain cases Starting from libvirt-6.5 an active layer block commit or a block copy could fail if the same destination was used more than once. * qemu: Don't change ownership of restore file When restoring a domain from a file, Libvirt no longer changes its ownership. * qemu: Set SPAPR TPM default to 2.0 and prevent 1.2 choice The firmware (SLOF) on QEMU for ppc64 does not support TPM 1.2, so prevent the choice of TPM 1.2 when the SPAPR device model is chosen and use a default of '2.0' (TPM 2) for the backend. * qemu: Do not set ``//cpu/@migratable`` for running domains Libvirt release of 6.4.0 started to fill the default value for ``//cpu/@migratable`` attribute according to QEMU support. However, active domains either have the migratable attribute already set or they were started with older Libvirt which doesn't support the attribute. Enjoy. Jirka

1 0

[libvirt PATCH 0/6] ci: clang on linux and more parallelism
by Ján Tomko 01 Aug '20

01 Aug '20

Run clang tests on Fedora Rawhide, Centos 8 and Debian 10. Specify needs: for everything to prevent pointless waiting. https://gitlab.com/jano.tomko/libvirt/-/pipelines/173023075 Ján Tomko (6): ci: refresh Dockerfiles ci: refresh Dockerfiles ci: add clang jobs ci: run Cirrus-based builds sooner ci: specify containter dependencies for all the jobs ci: run container jobs right away .gitlab-ci.yml | 76 +++++++++++++++++++ ci/containers/libvirt-centos-7.Dockerfile | 2 +- ci/containers/libvirt-centos-8.Dockerfile | 2 +- .../libvirt-centos-stream.Dockerfile | 2 +- ...libvirt-debian-10-cross-aarch64.Dockerfile | 2 +- .../libvirt-debian-10-cross-armv6l.Dockerfile | 3 +- .../libvirt-debian-10-cross-armv7l.Dockerfile | 3 +- .../libvirt-debian-10-cross-i686.Dockerfile | 2 +- .../libvirt-debian-10-cross-mips.Dockerfile | 2 +- ...ibvirt-debian-10-cross-mips64el.Dockerfile | 2 +- .../libvirt-debian-10-cross-mipsel.Dockerfile | 2 +- ...libvirt-debian-10-cross-ppc64le.Dockerfile | 2 +- .../libvirt-debian-10-cross-s390x.Dockerfile | 2 +- ci/containers/libvirt-debian-10.Dockerfile | 2 +- ...ibvirt-debian-sid-cross-aarch64.Dockerfile | 2 +- ...libvirt-debian-sid-cross-armv6l.Dockerfile | 3 +- ...libvirt-debian-sid-cross-armv7l.Dockerfile | 3 +- .../libvirt-debian-sid-cross-i686.Dockerfile | 2 +- ...bvirt-debian-sid-cross-mips64el.Dockerfile | 2 +- ...libvirt-debian-sid-cross-mipsel.Dockerfile | 3 +- ...ibvirt-debian-sid-cross-ppc64le.Dockerfile | 2 +- .../libvirt-debian-sid-cross-s390x.Dockerfile | 2 +- ci/containers/libvirt-debian-sid.Dockerfile | 2 +- ci/containers/libvirt-fedora-31.Dockerfile | 2 +- ci/containers/libvirt-fedora-32.Dockerfile | 2 +- ...rt-fedora-rawhide-cross-mingw32.Dockerfile | 1 + ...rt-fedora-rawhide-cross-mingw64.Dockerfile | 1 + .../libvirt-fedora-rawhide.Dockerfile | 2 +- ci/containers/libvirt-opensuse-151.Dockerfile | 2 +- ci/containers/libvirt-ubuntu-1804.Dockerfile | 2 +- ci/containers/libvirt-ubuntu-2004.Dockerfile | 2 +- 31 files changed, 111 insertions(+), 28 deletions(-) -- 2.26.2

3 8

[PATCH for 6.6.0] NEWS: Document changes for upcoming release
by Michal Privoznik 01 Aug '20

01 Aug '20

In contrast with other releases, this time NEWS is pretty much updated. I've identified only a couple of features/bug fixes worth mentioning that were not mentioned yet. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- NEWS.rst | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/NEWS.rst b/NEWS.rst index 1314f3e698..d97ca501dc 100644 --- a/NEWS.rst +++ b/NEWS.rst @@ -24,6 +24,12 @@ v6.6.0 (unreleased) MAC addresses that would generate a new one if they were in its OUI (00:0c:29). + * conf: add control over COW for storage pool directories + + The storage pool code now attempts to disable COW by default on btrfs, but + management applications may wish to override this behaviour. This is now + possible via new ``cow`` element. + * **Improvements** * esx: Change the NIC limit for recent virtualHW versions @@ -41,6 +47,14 @@ v6.6.0 (unreleased) The event can now be used also for block copy destinations by using the index of the ``<mirror>`` image. + * qemu: consider available CPUs in ``vcpupin/emulatorpin`` output + + This patch changes the default bitmap of ``vcpupin`` and ``emulatorpin``, + in the case of domains with static vcpu placement, all available CPUs + instead of all possible CPUs are returned making these APIs consistent with + the behavior of ``vcpuinfo``. + + * **Bug fixes** * virdevmapper: Don't use libdevmapper to obtain dependencies @@ -61,6 +75,24 @@ v6.6.0 (unreleased) Starting from libvirt-6.5 an active layer block commit or a block copy could fail if the same destination was used more than once. + * qemu: Don't change ownership of restore file + + When restoring a domain from a file, Libvirt no longer changes its ownership. + + * qemu: Set SPAPR TPM default to 2.0 and prevent 1.2 choice + + The firmware (SLOF) on QEMU for ppc64 does not support TPM 1.2, so prevent + the choice of TPM 1.2 when the SPAPR device model is chosen and use a + default of '2.0' (TPM 2) for the backend. + + * qemu: Do not set ``//cpu/@migratable`` for running domains + + Libvirt release of 6.4.0 started to fill the default value for + ``//cpu/@migratable`` attribute according to QEMU support. However, active + domains either have the migratable attribute already set or they were + started with older Libvirt which doesn't support the attribute. + + v6.5.0 (2020-07-03) =================== -- 2.26.2

4 3