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[libvirt] [PATCH] maint: Use flake8 to check python code
by Shi Lei 17 Sep '19

17 Sep '19

Replace 'sc_prohibit_semicolon_at_eol_in_python' with generic 'sc_flake8' rule to check python code style. Now 'sc_flake8' just check the error E703: 'statement ends with a semicolon'. In future, we could use '--select' to introduce more rules. Signed-off-by: Shi Lei <shi_lei(a)massclouds.com> --- cfg.mk | 8 +++----- configure.ac | 4 ++++ 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/cfg.mk b/cfg.mk index 42e1abf0..8acc45ac 100644 --- a/cfg.mk +++ b/cfg.mk @@ -812,11 +812,9 @@ sc_require_enum_last_marker: exit 1; } || : # In Python files we don't want to end lines with a semicolon like in C -sc_prohibit_semicolon_at_eol_in_python: - @prohibit='^[^#].*\;$$' \ - in_vc_files='\.py$$' \ - halt='python does not require to end lines with a semicolon' \ - $(_sc_search_regexp) +sc_flake8: + @$(VC_LIST_EXCEPT) | $(GREP) '\.py$$' | xargs $(FLAKE8) --select E703 \ + | $(GREP) . && { exit 1; } || : # mymain() in test files should use return, not exit, for nicer output sc_prohibit_exit_in_tests: diff --git a/configure.ac b/configure.ac index a8f8b051..93212ca7 100644 --- a/configure.ac +++ b/configure.ac @@ -704,6 +704,10 @@ AC_PATH_PROGS([PYTHON], [python3 python2 python]) if test -z "$PYTHON"; then AC_MSG_ERROR(['python3', 'python2' or 'python' binary is required to build libvirt]) fi +AC_PATH_PROG([FLAKE8], [flake8]) +if test -z "$FLAKE8"; then + AC_MSG_ERROR(['flake8' binary is required to check python code style]) +fi AC_PATH_PROG([PERL], [perl]) if test -z "$PERL"; then AC_MSG_ERROR(['perl' binary is required to build libvirt]) -- 2.17.1

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[libvirt] [PATCH 0/6] test_driver: implement device attach/detach APIs
by Ilias Stamatis 17 Sep '19

17 Sep '19

Ilias Stamatis (6): test_driver: implement virDomainAttachDeviceFlags test_driver: implement virDomainAttachDevice test_driver: implement virDomainDetachDeviceFlags test_driver: implement virDomainDetachDevice test_driver: implement virDomainDetachDeviceAlias test_driver: implement virDomainUpdateDeviceFlags src/test/test_driver.c | 570 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 570 insertions(+) -- 2.22.0

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[libvirt] [virttools-planet PATCH] README: add instructions for adding a new blog
by Stefan Hajnoczi 17 Sep '19

17 Sep '19

Signed-off-by: Stefan Hajnoczi <stefanha(a)gmail.com> --- README | 22 ++++++++++++++++++++++ updater/virt-tools/basic/index.html.tmpl | 1 + 2 files changed, 23 insertions(+) diff --git a/README b/README index 1013e71..ad388f8 100644 --- a/README +++ b/README @@ -6,6 +6,28 @@ This directory contains content / configuration for managing http(s)://planet.virttools.org http(s)://planet.virt-tools.org +How to add your blog +-------------------- +Add a config.ini section for your blog to updater/virt-tools/config.ini: + + [https://example.org/my/blog/feed/] + name = John Doe + face = jdoe.png + facewidth = 96 + faceheight = 96 + +Where face (logo image filename), facewidth (logo image width in pixels), and +faceheight (logo image height in pixels) are optional attributes that describe +the logo image associated with your blog. Remember to add your image file into +the updater/virt-tools/images/ directory if you wish to use an image. + +Please send a patch email to libvir-list(a)redhat.com: + + $ git commit -as + $ git send-email --to libvir-list(a)redhat.com --cc berrange(a)redhat.com HEAD^.. + +How to run the site +------------------- The site is setup to run under OpenShift Initial load can be done with diff --git a/updater/virt-tools/basic/index.html.tmpl b/updater/virt-tools/basic/index.html.tmpl index d8d239e..d26aba0 100644 --- a/updater/virt-tools/basic/index.html.tmpl +++ b/updater/virt-tools/basic/index.html.tmpl @@ -23,6 +23,7 @@ <TMPL_LOOP Channels> <li><a href="<TMPL_VAR link ESCAPE="HTML">" title="<TMPL_VAR title ESCAPE="HTML">"><TMPL_VAR name></a> <a href="<TMPL_VAR url ESCAPE="HTML">">(feed)</a></li> </TMPL_LOOP> + <li><a href="https://libvirt.org/git/?p=virttools-planet.git;a=blob;f=README">Add your blog!</a></li> </ul> </div> -- 2.21.0

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[libvirt] [RFC] quirks of interface target device name
by Nikolay Shirokovskiy 17 Sep '19

17 Sep '19

Hi, all I recently discovered that <target dev=''/> input is allowed[*] by qemu driver's defineXML for <interface> element. On start it will turn into 'tap<N>'. At the same time empty value is not allowed by schema. This name is generated by kernel on linux. I wonder how to deal with this. 1. Fix schema to allow empty value for dev attribute. Additionally fix migrating to clear out this autogenerated name. This way we have 2 options to autogenerate dev name. First as described above. Second is by ommiting target element. The naming will be 'vnet<N>' in the latter case. Having these 2 options looks redundant. 2. Don't allow to start domains with such configuration. We can not fail definition because disappearing VMs on libvirt update looks too unpleasant. This way we don't have two different set of autogenerated names. This can even go unnoticed given we fail such starts anyway after [1] (which is fixed by [*]). [1] is commited on 2018 Jul 23 and released in 4.6.0. However Centos 7 is based on 4.5.0 and virNetDevTapCreate has logic to copy generated tap name from kernel like since the beginning (I managed to follow the history to 2011). Nikolay [*] at least with recent "virStrncpy: fix to successfully copy empty string" applied [1] 7d70a63b util: Improve virStrncpy() implementation

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[libvirt] [PATCH 0/2] Fix systemd socket activation for systemd < v227
by Michael Chapman 17 Sep '19

17 Sep '19

A couple of bugs were encountered using socket activated libvirtd on CentOS 7: - When resolving a tls_port/tcp_port from the config file (needed even when using socket activation on systemd < v227), the port endianness was incorrect. - The wrong name was used when checking whether libvirtd-tls.socket was passed to libvirtd, leading to this socket not being properly registered. Michael Chapman (2): util: fix byte order of port in virSocketAddrResolveService remote: fix registration of TLS socket src/remote/remote_daemon.c | 2 +- src/util/virsocketaddr.c | 4 ++-- 2 files changed, 3 insertions(+), 3 deletions(-) -- 2.20.1

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[libvirt] [PATCH 1/1] virStrncpy: fix to successfully copy empty string
by Nikolay Shirokovskiy 16 Sep '19

16 Sep '19

After [1] we got failure on attempt to copy empty string. Before the patch empty string was copied successfuly. Restore the original behaviour. [1] 7d70a63b util: Improve virStrncpy() implementation Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy(a)virtuozzo.com> --- src/util/virstring.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/util/virstring.c b/src/util/virstring.c index 2064944b0b..a4cc7e9c0a 100644 --- a/src/util/virstring.c +++ b/src/util/virstring.c @@ -786,7 +786,7 @@ virStrncpy(char *dest, const char *src, size_t n, size_t destbytes) if (n == -1) n = src_len; - if (n <= 0 || n > src_len || n > (destbytes - 1)) + if (n > src_len || n > (destbytes - 1)) return -1; memcpy(dest, src, n); -- 2.23.0

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[libvirt] [PATCH 0/2] qemu: Enable -blockdev support (blockdev-add saga)
by Peter Krempa 16 Sep '19

16 Sep '19

To my knowledge, everything in libvirt is now prepared to fully use -blockdev way to configure disks in qemu. There is one known qemu bug though: Internal snapshots don't work with -blockdev: https://bugzilla.redhat.com/show_bug.cgi?id=1658981 Since I can't in good faith ask for merging this patchset yet I'd like to give it some more testing I'm suggesting that we push it and revert it during freeze or add a capability check once qemu is fixed. Any other ideas? Peter Krempa (2): qemu: caps: Add capability for dynamic 'auto-read-only' support for files qemu: enable blockdev support src/qemu/qemu_capabilities.c | 5 + src/qemu/qemu_capabilities.h | 1 + .../caps_4.1.0.x86_64.xml | 2 + .../controller-virtio-scsi.x86_64-latest.args | 35 +++-- .../disk-aio.x86_64-latest.args | 19 ++- ...-backing-chains-noindex.x86_64-latest.args | 145 +++++++++++++++--- .../disk-cache.x86_64-latest.args | 50 ++++-- .../disk-cdrom-network.x86_64-latest.args | 32 ++-- .../disk-cdrom-tray.x86_64-latest.args | 24 ++- .../disk-cdrom.x86_64-latest.args | 21 +-- .../disk-copy_on_read.x86_64-latest.args | 19 ++- .../disk-detect-zeroes.x86_64-latest.args | 17 +- .../disk-error-policy.x86_64-latest.args | 30 ++-- .../disk-floppy-q35-2_11.x86_64-latest.args | 14 +- .../disk-floppy-q35-2_9.x86_64-latest.args | 14 +- .../disk-floppy.x86_64-latest.args | 21 ++- .../disk-network-gluster.x86_64-latest.args | 32 ++-- .../disk-network-iscsi.x86_64-latest.args | 58 ++++--- .../disk-network-nbd.x86_64-latest.args | 41 +++-- .../disk-network-rbd.x86_64-latest.args | 67 +++++--- .../disk-network-sheepdog.x86_64-latest.args | 16 +- ...isk-network-source-auth.x86_64-latest.args | 30 ++-- .../disk-network-tlsx509.x86_64-latest.args | 64 +++++--- .../disk-readonly-disk.x86_64-latest.args | 14 +- .../disk-scsi-device-auto.x86_64-latest.args | 14 +- .../disk-scsi.x86_64-latest.args | 35 +++-- .../disk-shared.x86_64-latest.args | 36 +++-- ...irtio-scsi-reservations.x86_64-latest.args | 20 ++- .../floppy-drive-fat.x86_64-latest.args | 7 +- ...egl-headless-rendernode.x86_64-latest.args | 7 +- .../graphics-egl-headless.x86_64-latest.args | 7 +- ...threads-virtio-scsi-pci.x86_64-latest.args | 25 ++- ...y-hotplug-nvdimm-access.x86_64-latest.args | 7 +- ...ry-hotplug-nvdimm-align.x86_64-latest.args | 7 +- ...ry-hotplug-nvdimm-label.x86_64-latest.args | 7 +- ...ory-hotplug-nvdimm-pmem.x86_64-latest.args | 7 +- ...hotplug-nvdimm-readonly.x86_64-latest.args | 7 +- .../memory-hotplug-nvdimm.x86_64-latest.args | 7 +- ...eo-bochs-display-device.x86_64-latest.args | 10 +- ...virtio-non-transitional.x86_64-latest.args | 7 +- .../virtio-transitional.x86_64-latest.args | 7 +- .../x86_64-pc-graphics.x86_64-latest.args | 8 +- .../x86_64-pc-headless.x86_64-latest.args | 8 +- .../x86_64-q35-graphics.x86_64-latest.args | 8 +- .../x86_64-q35-headless.x86_64-latest.args | 8 +- 45 files changed, 714 insertions(+), 306 deletions(-) -- 2.21.0

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[libvirt] [PATCH v2 00/11] hostdev: handle usb detach/attach on node
by Nikolay Shirokovskiy 16 Sep '19

16 Sep '19

*Notes* Deleting usb device from qemu is synchronous operation (although it is not stated in qemu API). I did not used this knowledge in the series. The last patch is remnant of previus version of the series yet it is useful. Diff to previous[1] version: - don't use dummy device while host usb device is unplugged [1] https://www.redhat.com/archives/libvir-list/2019-August/msg01413.html Nikolay Shirokovskiy (11): qemu: track hostdev delete intention qemu: support host usb device unplug qemu: support usb hostdev plugging back qemu: handle host usb device add/del udev events qemu: handle libvirtd restart after host usb device unplug qemu: handle race on device deletion and usb host device plugging qemu: hotplug: update device list on device deleted event qemu: handle host usb device plug/unplug when libvirtd is down qemu: don't mess with non mandatory hostdevs on reattaching qemu: handle detaching of unplugged hostdev conf: parse hostdev missing flag src/conf/domain_conf.c | 32 +++ src/conf/domain_conf.h | 15 ++ src/qemu/Makefile.inc.am | 2 + src/qemu/qemu_conf.h | 3 + src/qemu/qemu_domain.c | 2 + src/qemu/qemu_domain.h | 2 + src/qemu/qemu_driver.c | 431 ++++++++++++++++++++++++++++++++++++++- src/qemu/qemu_hotplug.c | 104 ++++++++-- src/qemu/qemu_hotplug.h | 3 +- src/qemu/qemu_process.c | 59 ++++++ src/util/virhostdev.c | 2 + tests/qemuhotplugtest.c | 2 +- 12 files changed, 637 insertions(+), 20 deletions(-) -- 2.23.0

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[libvirt] [PATCH] qemu_blockjob: Remove image metadata on blockcommit
by Michal Privoznik 16 Sep '19

16 Sep '19

When doing a blockcommit, the base and possibly top parent are relabelled in qemuDomainBlockCommit(). However, once the block job is finished, we need to remove the secdriver metadata (XATTRs) created at the beginning. Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1741456 Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- src/qemu/qemu_blockjob.c | 19 +++++++++++++++++++ 1 file changed, 19 insertions(+) diff --git a/src/qemu/qemu_blockjob.c b/src/qemu/qemu_blockjob.c index a991309ee7..47715f12f6 100644 --- a/src/qemu/qemu_blockjob.c +++ b/src/qemu/qemu_blockjob.c @@ -677,6 +677,25 @@ qemuBlockJobEventProcessLegacyCompleted(virQEMUDriverPtr driver, } virObjectUnref(disk->mirror); + } else if (job->type == QEMU_BLOCKJOB_TYPE_COMMIT) { + if (qemuSecurityMoveImageMetadata(driver, vm, + job->data.commit.base, NULL) < 0) { + VIR_WARN("Unable to remove disk metadata on " + "vm %s from %s (disk target %s)", + vm->def->name, + NULLSTR(job->data.commit.base->path), + disk->dst); + } + if (job->data.commit.topparent && + job->data.commit.topparent != disk->src && + qemuSecurityMoveImageMetadata(driver, vm, + job->data.commit.topparent, NULL) < 0) { + VIR_WARN("Unable to remove disk metadata on " + "vm %s from %s (disk target %s)", + vm->def->name, + NULLSTR(job->data.commit.topparent->path), + disk->dst); + } } } -- 2.21.0

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[libvirt] [PATCH 0/2] qemu: Fix blockjob assignment collision (blockdev-add saga)
by Peter Krempa 16 Sep '19

16 Sep '19

We leaked a block job object in the tests because two jobs with distinct names referenced the same disk. Fix the test data and add code to prevent this issue. Peter Krempa (2): tests: qemustatusxml2xml: Fix disk target mess qemu: blockjob: Refuse to register blockjob if disk already has one src/qemu/qemu_blockjob.c | 6 ++++++ .../qemustatusxml2xmldata/blockjob-blockdev-in.xml | 14 +++++++------- 2 files changed, 13 insertions(+), 7 deletions(-) -- 2.21.0

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