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[libvirt PATCH] news: document virtiofs boot order
by Ján Tomko 29 Jan '21

29 Jan '21

Signed-off-by: Ján Tomko <jtomko(a)redhat.com> --- NEWS.rst | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/NEWS.rst b/NEWS.rst index 7a2d6649b4..8b8a132e41 100644 --- a/NEWS.rst +++ b/NEWS.rst @@ -18,6 +18,11 @@ v7.1.0 (unreleased) The virtio-pmem is a virtio variant of NVDIMM and just like NVDIMM virtio-pmem also allows accessing host pages bypassing guest page cache. + * Introduce ``<boot order/>`` for ``<filesystem>`` + + Booting is possible from virtiofs filesystems. Introduce an option + to control the boot order, like we do for other bootable devices. + * **Improvements** * **Bug fixes** -- 2.29.2

2 1

[libvirt PATCH 0/7] Add boot order to virtiofs
by Ján Tomko 29 Jan '21

29 Jan '21

Sadly, the replies changes for older QEMUs are synthetic. Separated for easier review. Also available on gitlab: git fetch https://gitlab.com/janotomko/libvirt/ virtiofs-bootindex https://gitlab.com/janotomko/libvirt/-/tree/virtiofs-bootindex And a broken pipeline: https://gitlab.com/janotomko/libvirt/-/pipelines/248162273 Ján Tomko (7): tests: switch vhost-user-fs-hugepages to use boot order conf: add boot order to filesystem qemu: add QEMU_CAPS_VHOST_USER_FS_BOOTINDEX fixup: vhost-user-fs-device properties fixup: renumber Add validation for virtiofs boot order setting qemu: format bootindex for vhost-user-fs docs/schemas/domaincommon.rng | 3 + src/conf/domain_conf.c | 5 +- src/conf/domain_validate.c | 17 ++- src/qemu/qemu_capabilities.c | 8 + src/qemu/qemu_capabilities.h | 1 + src/qemu/qemu_command.c | 3 + src/qemu/qemu_validate.c | 6 + .../caps_4.2.0.aarch64.replies | 131 ++++++++++++---- .../caps_4.2.0.s390x.replies | 119 ++++++++++++--- .../caps_4.2.0.x86_64.replies | 131 ++++++++++++---- .../caps_5.0.0.aarch64.replies | 136 +++++++++++++---- .../caps_5.0.0.ppc64.replies | 124 +++++++++++++--- .../caps_5.0.0.riscv64.replies | 120 ++++++++++++--- .../caps_5.0.0.x86_64.replies | 136 +++++++++++++---- .../caps_5.1.0.x86_64.replies | 136 +++++++++++++---- .../caps_5.2.0.aarch64.replies | 136 +++++++++++++---- .../caps_5.2.0.ppc64.replies | 124 +++++++++++++--- .../caps_5.2.0.riscv64.replies | 120 ++++++++++++--- .../caps_5.2.0.s390x.replies | 124 +++++++++++++--- .../caps_5.2.0.x86_64.replies | 136 +++++++++++++---- .../caps_6.0.0.x86_64.replies | 140 ++++++++++++++---- .../caps_6.0.0.x86_64.xml | 1 + ...vhost-user-fs-hugepages.x86_64-latest.args | 3 +- .../vhost-user-fs-hugepages.xml | 3 +- 24 files changed, 1534 insertions(+), 329 deletions(-) -- 2.29.2

3 10

[PATCH] conf: rename virDomainCheckVirtioOptions
by Boris Fiuczynski 29 Jan '21

29 Jan '21

Rename virDomainCheckVirtioOptions into virDomainCheckVirtioOptionsAreAbent since it checks if all virtio options are absent. The old name was very misleading. Signed-off-by: Boris Fiuczynski <fiuczy(a)linux.ibm.com> --- src/conf/domain_validate.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/src/conf/domain_validate.c b/src/conf/domain_validate.c index dd4c6e0fb3..a2f236c299 100644 --- a/src/conf/domain_validate.c +++ b/src/conf/domain_validate.c @@ -227,7 +227,7 @@ virSecurityDeviceLabelDefValidate(virSecurityDeviceLabelDefPtr *seclabels, static int -virDomainCheckVirtioOptions(virDomainVirtioOptionsPtr virtio) +virDomainCheckVirtioOptionsAreAbsent(virDomainVirtioOptionsPtr virtio) { if (!virtio) return 0; @@ -316,7 +316,7 @@ virDomainDiskDefValidate(const virDomainDef *def, return -1; } - if (virDomainCheckVirtioOptions(disk->virtio) < 0) + if (virDomainCheckVirtioOptionsAreAbsent(disk->virtio) < 0) return -1; } @@ -1363,7 +1363,7 @@ virDomainNetDefValidate(const virDomainNetDef *net) } if (!virDomainNetIsVirtioModel(net) && - virDomainCheckVirtioOptions(net->virtio) < 0) { + virDomainCheckVirtioOptionsAreAbsent(net->virtio) < 0) { return -1; } @@ -1513,7 +1513,7 @@ virDomainVsockDefValidate(const virDomainVsockDef *vsock) } if (!virDomainVsockIsVirtioModel(vsock) && - virDomainCheckVirtioOptions(vsock->virtio) < 0) + virDomainCheckVirtioOptionsAreAbsent(vsock->virtio) < 0) return -1; return 0; -- 2.26.2

5 5

[PATCH] docs: Clarify the documentation of the <css> elements
by Thomas Huth 29 Jan '21

29 Jan '21

The channel subsystem elements describe a channel in the I/O subsystem of a s390x machine, and not a normal device (like a disk or network card). Reword the documentation here to make it this a little bit clearer. Buglink: https://bugzilla.redhat.com/show_bug.cgi?id=1898074 Signed-off-by: Thomas Huth <thuth(a)redhat.com> --- docs/formatnode.html.in | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/docs/formatnode.html.in b/docs/formatnode.html.in index 1010a37a3d..8fbd3e6ece 100644 --- a/docs/formatnode.html.in +++ b/docs/formatnode.html.in @@ -396,15 +396,15 @@ </dl> </dd> <dt><code>css</code></dt> - <dd>Describes a Channel SubSystem (CSS) device commonly found on - the S390 architecture. Sub-elements include: + <dd>Describes a channel in the Channel SubSystem (CSS) commonly found + on the S390 architecture. Sub-elements include: <dl> <dt><code>cssid</code></dt> <dd>The channel subsystem identifier.</dd> <dt><code>ssid</code></dt> <dd>The subchannel-set identifier.</dd> <dt><code>devno</code></dt> - <dd>The device number.</dd> + <dd>The subchannel number.</dd> <dt><code>capability</code></dt> <dd> This optional element can occur multiple times. If it -- 2.27.0

3 2

[PATCH] qemu: Add virtio related options to vsock
by Boris Fiuczynski 29 Jan '21

29 Jan '21

Add virtio related options iommu, ats and packed as driver element attributes to vsock devices. Ex: <vsock model='virtio'> <cid auto='no' address='3'/> <driver iommu='on'/> </vsock> Signed-off-by: Boris Fiuczynski <fiuczy(a)linux.ibm.com> --- docs/formatdomain.rst | 2 + docs/schemas/domaincommon.rng | 5 +++ src/conf/domain_conf.c | 34 +++++++++++++-- src/conf/domain_conf.h | 1 + src/qemu/qemu_command.c | 3 ++ src/qemu/qemu_validate.c | 3 ++ .../vhost-vsock-ccw-iommu.s390x-latest.args | 42 +++++++++++++++++++ .../vhost-vsock-ccw-iommu.xml | 33 +++++++++++++++ tests/qemuxml2argvtest.c | 1 + .../vhost-vsock-ccw-iommu.s390x-latest.xml | 37 ++++++++++++++++ tests/qemuxml2xmltest.c | 2 + 11 files changed, 160 insertions(+), 3 deletions(-) create mode 100644 tests/qemuxml2argvdata/vhost-vsock-ccw-iommu.s390x-latest.args create mode 100644 tests/qemuxml2argvdata/vhost-vsock-ccw-iommu.xml create mode 100644 tests/qemuxml2xmloutdata/vhost-vsock-ccw-iommu.s390x-latest.xml diff --git a/docs/formatdomain.rst b/docs/formatdomain.rst index c738078b90..a09868bed5 100644 --- a/docs/formatdomain.rst +++ b/docs/formatdomain.rst @@ -7433,6 +7433,8 @@ devices <#elementsVirtioTransitional>`__ for more details. The optional attribute ``address`` of the ``cid`` element specifies the CID assigned to the guest. If the attribute ``auto`` is set to ``yes``, libvirt will assign a free CID automatically on domain startup. :since:`Since 4.4.0` +The optional ``driver`` element allows to specify virtio options, see +`Virtio-specific options <#elementsVirtio>`__ for more details. :since:`Since 7.1.0` :: diff --git a/docs/schemas/domaincommon.rng b/docs/schemas/domaincommon.rng index a4bddcf132..232587e690 100644 --- a/docs/schemas/domaincommon.rng +++ b/docs/schemas/domaincommon.rng @@ -4883,6 +4883,11 @@ <optional> <ref name="alias"/> </optional> + <optional> + <element name="driver"> + <ref name="virtioOptions"/> + </element> + </optional> </interleave> </element> </define> diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index dab4f10326..b94204cb4f 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -2457,6 +2457,7 @@ virDomainVsockDefFree(virDomainVsockDefPtr vsock) virObjectUnref(vsock->privateData); virDomainDeviceInfoClear(&vsock->info); + VIR_FREE(vsock->virtio); VIR_FREE(vsock); } @@ -5321,7 +5322,16 @@ virDomainNetDefPostParse(virDomainNetDefPtr net) } -static void +static bool +virDomainVsockIsVirtioModel(const virDomainVsockDef *vsock) +{ + return (vsock->model == VIR_DOMAIN_VSOCK_MODEL_VIRTIO || + vsock->model == VIR_DOMAIN_VSOCK_MODEL_VIRTIO_TRANSITIONAL || + vsock->model == VIR_DOMAIN_VSOCK_MODEL_VIRTIO_NON_TRANSITIONAL); +} + + +static int virDomainVsockDefPostParse(virDomainVsockDefPtr vsock) { if (vsock->auto_cid == VIR_TRISTATE_BOOL_ABSENT) { @@ -5330,6 +5340,12 @@ virDomainVsockDefPostParse(virDomainVsockDefPtr vsock) else vsock->auto_cid = VIR_TRISTATE_BOOL_YES; } + + if (!virDomainVsockIsVirtioModel(vsock) && + virDomainCheckVirtioOptions(vsock->virtio) < 0) + return -1; + + return 0; } @@ -5410,8 +5426,7 @@ virDomainDeviceDefPostParseCommon(virDomainDeviceDefPtr dev, break; case VIR_DOMAIN_DEVICE_VSOCK: - virDomainVsockDefPostParse(dev->data.vsock); - ret = 0; + ret = virDomainVsockDefPostParse(dev->data.vsock); break; case VIR_DOMAIN_DEVICE_MEMORY: @@ -15711,6 +15726,11 @@ virDomainVsockDefParseXML(virDomainXMLOptionPtr xmlopt, if (virDomainDeviceInfoParseXML(xmlopt, node, &vsock->info, flags) < 0) return NULL; + if (virDomainVirtioOptionsParseXML(virXPathNode("./driver", ctxt), + &vsock->virtio) < 0) + return NULL; + + return g_steal_pointer(&vsock); } @@ -22897,6 +22917,10 @@ virDomainVsockDefCheckABIStability(virDomainVsockDefPtr src, return false; } + if (src->virtio && dst->virtio && + !virDomainVirtioOptionsCheckABIStability(src->virtio, dst->virtio)) + return false; + if (!virDomainDeviceInfoCheckABIStability(&src->info, &dst->info)) return false; @@ -28087,6 +28111,7 @@ virDomainVsockDefFormat(virBufferPtr buf, g_auto(virBuffer) childBuf = VIR_BUFFER_INIT_CHILD(buf); g_auto(virBuffer) attrBuf = VIR_BUFFER_INITIALIZER; g_auto(virBuffer) cidAttrBuf = VIR_BUFFER_INITIALIZER; + g_auto(virBuffer) drvAttrBuf = VIR_BUFFER_INITIALIZER; if (vsock->model) { virBufferAsprintf(&attrBuf, " model='%s'", @@ -28103,6 +28128,9 @@ virDomainVsockDefFormat(virBufferPtr buf, virDomainDeviceInfoFormat(&childBuf, &vsock->info, 0); + virDomainVirtioOptionsFormat(&drvAttrBuf, vsock->virtio); + + virXMLFormatElement(&childBuf, "driver", &drvAttrBuf, NULL); virXMLFormatElement(buf, "vsock", &attrBuf, &childBuf); } diff --git a/src/conf/domain_conf.h b/src/conf/domain_conf.h index 95ad052891..0a5d151150 100644 --- a/src/conf/domain_conf.h +++ b/src/conf/domain_conf.h @@ -2543,6 +2543,7 @@ struct _virDomainVsockDef { virTristateBool auto_cid; virDomainDeviceInfo info; + virDomainVirtioOptionsPtr virtio; }; struct _virDomainVirtioOptions { diff --git a/src/qemu/qemu_command.c b/src/qemu/qemu_command.c index 1ec302d4ac..4986ca8b08 100644 --- a/src/qemu/qemu_command.c +++ b/src/qemu/qemu_command.c @@ -9733,6 +9733,9 @@ qemuBuildVsockDevStr(virDomainDefPtr def, virBufferAsprintf(&buf, ",id=%s", vsock->info.alias); virBufferAsprintf(&buf, ",guest-cid=%u", vsock->guest_cid); virBufferAsprintf(&buf, ",vhostfd=%s%u", fdprefix, priv->vhostfd); + + qemuBuildVirtioOptionsStr(&buf, vsock->virtio); + if (qemuBuildDeviceAddressStr(&buf, def, &vsock->info, qemuCaps) < 0) return NULL; diff --git a/src/qemu/qemu_validate.c b/src/qemu/qemu_validate.c index a060bd98ba..cb9311cb9c 100644 --- a/src/qemu/qemu_validate.c +++ b/src/qemu/qemu_validate.c @@ -4200,6 +4200,9 @@ qemuValidateDomainDeviceDefVsock(const virDomainVsockDef *vsock, "vsock")) return -1; + if (qemuValidateDomainVirtioOptions(vsock->virtio, qemuCaps) < 0) + return -1; + return 0; } diff --git a/tests/qemuxml2argvdata/vhost-vsock-ccw-iommu.s390x-latest.args b/tests/qemuxml2argvdata/vhost-vsock-ccw-iommu.s390x-latest.args new file mode 100644 index 0000000000..aed32eef25 --- /dev/null +++ b/tests/qemuxml2argvdata/vhost-vsock-ccw-iommu.s390x-latest.args @@ -0,0 +1,42 @@ +LC_ALL=C \ +PATH=/bin \ +HOME=/tmp/lib/domain--1-QEMUGuest1 \ +USER=test \ +LOGNAME=test \ +XDG_DATA_HOME=/tmp/lib/domain--1-QEMUGuest1/.local/share \ +XDG_CACHE_HOME=/tmp/lib/domain--1-QEMUGuest1/.cache \ +XDG_CONFIG_HOME=/tmp/lib/domain--1-QEMUGuest1/.config \ +QEMU_AUDIO_DRV=none \ +/usr/bin/qemu-system-s390x \ +-name guest=QEMUGuest1,debug-threads=on \ +-S \ +-object secret,id=masterKey0,format=raw,\ +file=/tmp/lib/domain--1-QEMUGuest1/master-key.aes \ +-machine s390-ccw-virtio,accel=tcg,usb=off,dump-guest-core=off,\ +memory-backend=s390.ram \ +-cpu qemu \ +-m 214 \ +-object memory-backend-ram,id=s390.ram,size=224395264 \ +-overcommit mem-lock=off \ +-smp 1,sockets=1,cores=1,threads=1 \ +-uuid c7a5fdbd-edaf-9455-926a-d65c16db1809 \ +-display none \ +-no-user-config \ +-nodefaults \ +-chardev socket,id=charmonitor,fd=1729,server,nowait \ +-mon chardev=charmonitor,id=monitor,mode=control \ +-rtc base=utc \ +-no-shutdown \ +-boot strict=on \ +-blockdev '{"driver":"host_device","filename":"/dev/HostVG/QEMUGuest1",\ +"node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}' \ +-blockdev '{"node-name":"libvirt-1-format","read-only":false,"driver":"raw",\ +"file":"libvirt-1-storage"}' \ +-device virtio-blk-ccw,devno=fe.0.0000,drive=libvirt-1-format,id=virtio-disk0,\ +bootindex=1 \ +-device virtio-balloon-ccw,id=balloon0,devno=fe.0.0001 \ +-sandbox on,obsolete=deny,elevateprivileges=deny,spawn=deny,\ +resourcecontrol=deny \ +-device vhost-vsock-ccw,id=vsock0,guest-cid=4,vhostfd=6789,iommu_platform=on,\ +devno=fe.0.0002 \ +-msg timestamp=on diff --git a/tests/qemuxml2argvdata/vhost-vsock-ccw-iommu.xml b/tests/qemuxml2argvdata/vhost-vsock-ccw-iommu.xml new file mode 100644 index 0000000000..ba9cdc82bf --- /dev/null +++ b/tests/qemuxml2argvdata/vhost-vsock-ccw-iommu.xml @@ -0,0 +1,33 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type arch='s390x' machine='s390-ccw-virtio'>hvm</type> + <boot dev='hd'/> + </os> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu-system-s390x</emulator> + <disk type='block' device='disk'> + <driver name='qemu' type='raw'/> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='virtio'/> + <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0000'/> + </disk> + <memballoon model='virtio'> + <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0001'/> + </memballoon> + <panic model='s390'/> + <vsock model='virtio'> + <cid auto='no' address='4'/> + <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0002'/> + <driver iommu='on'/> + </vsock> + </devices> +</domain> diff --git a/tests/qemuxml2argvtest.c b/tests/qemuxml2argvtest.c index cf77224fc3..c5d82ac72e 100644 --- a/tests/qemuxml2argvtest.c +++ b/tests/qemuxml2argvtest.c @@ -3400,6 +3400,7 @@ mymain(void) DO_TEST_CAPS_LATEST("vhost-vsock-auto"); DO_TEST_CAPS_ARCH_LATEST("vhost-vsock-ccw", "s390x"); DO_TEST_CAPS_ARCH_LATEST("vhost-vsock-ccw-auto", "s390x"); + DO_TEST_CAPS_ARCH_LATEST("vhost-vsock-ccw-iommu", "s390x"); DO_TEST_CAPS_VER("launch-security-sev", "2.12.0"); DO_TEST_CAPS_VER("launch-security-sev-missing-platform-info", "2.12.0"); diff --git a/tests/qemuxml2xmloutdata/vhost-vsock-ccw-iommu.s390x-latest.xml b/tests/qemuxml2xmloutdata/vhost-vsock-ccw-iommu.s390x-latest.xml new file mode 100644 index 0000000000..dbfe082a6f --- /dev/null +++ b/tests/qemuxml2xmloutdata/vhost-vsock-ccw-iommu.s390x-latest.xml @@ -0,0 +1,37 @@ +<domain type='qemu'> + <name>QEMUGuest1</name> + <uuid>c7a5fdbd-edaf-9455-926a-d65c16db1809</uuid> + <memory unit='KiB'>219136</memory> + <currentMemory unit='KiB'>219136</currentMemory> + <vcpu placement='static'>1</vcpu> + <os> + <type arch='s390x' machine='s390-ccw-virtio'>hvm</type> + <boot dev='hd'/> + </os> + <cpu mode='custom' match='exact' check='none'> + <model fallback='forbid'>qemu</model> + </cpu> + <clock offset='utc'/> + <on_poweroff>destroy</on_poweroff> + <on_reboot>restart</on_reboot> + <on_crash>destroy</on_crash> + <devices> + <emulator>/usr/bin/qemu-system-s390x</emulator> + <disk type='block' device='disk'> + <driver name='qemu' type='raw'/> + <source dev='/dev/HostVG/QEMUGuest1'/> + <target dev='hda' bus='virtio'/> + <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0000'/> + </disk> + <controller type='pci' index='0' model='pci-root'/> + <memballoon model='virtio'> + <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0001'/> + </memballoon> + <panic model='s390'/> + <vsock model='virtio'> + <cid auto='no' address='4'/> + <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0002'/> + <driver iommu='on'/> + </vsock> + </devices> +</domain> diff --git a/tests/qemuxml2xmltest.c b/tests/qemuxml2xmltest.c index 9553a8a4f8..50dd970789 100644 --- a/tests/qemuxml2xmltest.c +++ b/tests/qemuxml2xmltest.c @@ -1403,6 +1403,8 @@ mymain(void) QEMU_CAPS_CCW); DO_TEST("vhost-vsock-ccw-auto", QEMU_CAPS_DEVICE_VHOST_VSOCK, QEMU_CAPS_CCW); + DO_TEST_CAPS_ARCH_LATEST("vhost-vsock-ccw-iommu", "s390x"); + DO_TEST_CAPS_LATEST("vhost-user-fs-fd-memory"); DO_TEST_CAPS_LATEST("vhost-user-fs-hugepages"); -- 2.26.2

2 5

[PATCH 0/3] conf: Couple of virtio options related improvements
by Michal Privoznik 29 Jan '21

29 Jan '21

I've noticed these while reviewing Boris' patch: https://www.redhat.com/archives/libvir-list/2021-January/msg01149.html Michal Prívozník (3): conf: Move virDomainCheckVirtioOptions() into domain_validate.c conf: Drop empty virDomainNetDefPostParse() conf: Improve virDomainVirtioOptionsCheckABIStability() src/conf/domain_conf.c | 83 +++++++++----------------------------- src/conf/domain_validate.c | 55 ++++++++++++++++++++----- 2 files changed, 64 insertions(+), 74 deletions(-) -- 2.26.2

2 4

[libvirt PATCH 00/11] Random bits found by clang-tidy
by Tim Wiederhake 29 Jan '21

29 Jan '21

clang-tidy is a static code analysis tool under the llvm umbrella. It is primarily meant to be used on C++ code bases, but some of the checks it provides also apply to C. The findings vary in severity and contain pseudo-false-positives, i.e. clang-tidy is flagging potential execution flows that could happen in theory but are virtually impossible in real life: In function `virGetUnprivSGIOSysfsPath`, variables `maj` and `min` would be read unintialized if `stat()` failed and set `errno` to a negative value, to name just one example. The main source of false positive findings is the lack of support for `__attribute__((cleanup))` in clang-tidy, which is heavily used in libvirt through glib's `g_autofree` and `g_auto()` macros: #include <stdlib.h> void freeptr(int** p) { if (*p) free(*p); } int main() { __attribute__((cleanup(freeptr))) int *ptr = NULL; ptr = calloc(sizeof(int), 1); return 0; /* flagged as memory leak of `ptr` */ } This sadly renders clang-tidy's analysis of dynamic memory useless, hiding all real issues that it could otherwise find. Meson provides excellent integration for clang-tidy (a "clang-tidy" target is automatically generated if a ".clang-tidy" configuration file is present in the project's root directory). The amount of false-positives and the slow analysis, triggering time-outs in the CI, make this tool unfit for inclusion in libvirt's GitLab CI though. The patches in this series are the result of fixing some of the issues reported by running CC=clang meson build ninja -C build # generate sources and header files ninja -C build clang-tidy with the following `.clang-tidy` configuration file: --- Checks: > *, -abseil-*, -android-*, -boost-*, -cppcoreguidelines-*, -fuchsia-*, -google-*, -hicpp-*, -llvm-*, -modernize-*, -mpi-, -objc-, -openmp-, -zircon-*, -readability-braces-around-statements, -readability-magic-numbers WarningsAsErrors: '*' HeaderFilterRegex: '' FormatStyle: none ... Regards, Tim Tim Wiederhake (11): virfile: Remove redundant #ifndef xen: Fix indentation in xenParseXLSpice qemu_tpm: Fix indentation in qemuTPMEmulatorBuildCommand virsh-domain: Fix error handling of pthread_sigmask Replace bzero() with memset() udevGetIntSysfsAttr: Return -1 for missing attributes virhostuptime: Fix rounding in uptime calculation tests: Prevent malloc with size 0 vircryptotest: Directly assign string to avoid memcpy vircommand: Remove NULL check in virCommandAddArg vircommand: Simplify virCommandAddArg src/libxl/xen_xl.c | 5 ++--- src/node_device/node_device_udev.c | 5 ++++- src/qemu/qemu_tpm.c | 8 +++++--- src/util/virarptable.c | 2 +- src/util/vircommand.c | 12 +----------- src/util/virfile.c | 4 ++-- src/util/virhostuptime.c | 4 +++- tests/commandhelper.c | 2 +- tests/vircryptotest.c | 5 +---- tests/virpcimock.c | 2 +- tools/virsh-domain.c | 8 ++++---- 11 files changed, 25 insertions(+), 32 deletions(-) -- 2.26.2

4 28

[PATCH] remote: Add libvirtd dependency to virt-guest-shutdown.target
by Jim Fehlig 28 Jan '21

28 Jan '21

When restarting libvirt services and sockets *and* libvirt-guests.service is running, the latter will sometimes hang when trying to connect to libvirtd. Even though libvirt-guests has 'Wants=libvirtd.service' and 'After=libvirtd.service', we can see via journalctl that it is not shutdown before libvirtd when executing something like systemctl try-restart libvirtd.service libvirtd.socket \ libvirtd-ro.socket virtlockd.service virtlockd.socket \ virtlogd.service virtlogd.socket virt-guest-shutdown.target Oct 28 15:53:31 systemd[1]: Stopping Virtualization daemon... Oct 28 15:53:31 systemd[1]: libvirtd.service: Succeeded. Oct 28 15:53:31 systemd[1]: Stopped Virtualization daemon. Oct 28 15:53:31 systemd[1]: libvirtd-admin.socket: Succeeded. Oct 28 15:53:31 systemd[1]: Closed Libvirt admin socket. Oct 28 15:53:31 systemd[1]: Stopping Libvirt admin socket. Oct 28 15:53:31 systemd[1]: libvirtd-ro.socket: Succeeded. Oct 28 15:53:31 systemd[1]: Closed Libvirt local read-only socket. Oct 28 15:53:31 systemd[1]: Stopping Libvirt local read-only socket. Oct 28 15:53:31 systemd[1]: libvirtd.socket: Succeeded. Oct 28 15:53:31 systemd[1]: Closed Libvirt local socket. Oct 28 15:53:31 systemd[1]: Stopping Libvirt local socket. Oct 28 15:53:31 systemd[1]: Listening on Libvirt local socket. Oct 28 15:53:31 systemd[1]: Listening on Libvirt admin socket. Oct 28 15:53:31 systemd[1]: Listening on Libvirt local read-only socket. Oct 28 15:53:31 systemd[1]: virtlockd.socket: Succeeded. Oct 28 15:53:31 systemd[1]: Closed Virtual machine lock manager socket. Oct 28 15:53:31 systemd[1]: Stopping Virtual machine lock manager socket. Oct 28 15:53:31 systemd[1]: Listening on Virtual machine lock manager socket. Oct 28 15:53:31 systemd[1]: virtlogd.socket: Succeeded. Oct 28 15:53:31 systemd[1]: Closed Virtual machine log manager socket. Oct 28 15:53:31 systemd[1]: Stopping Virtual machine log manager socket. Oct 28 15:53:31 systemd[1]: Listening on Virtual machine log manager socket. Oct 28 15:53:31 systemd[1]: Stopping Suspend/Resume Running libvirt Guests... In this case, the try-restart command hung and libvirt-guests was stuck trying to connect to libvirtd. In the following case, the try-restart worked since libvirtd was started again before libvirt-guests was stopped! Oct 28 15:19:02 systemd[1]: Stopping Virtualization daemon... Oct 28 15:19:02 systemd[1]: Stopped Virtualization daemon. Oct 28 15:19:02 systemd[1]: Closed Libvirt admin socket. Oct 28 15:19:02 systemd[1]: Stopping Libvirt admin socket. Oct 28 15:19:02 systemd[1]: Closed Virtual machine lock manager socket. Oct 28 15:19:02 systemd[1]: Stopping Virtual machine lock manager socket. Oct 28 15:19:02 systemd[1]: Listening on Virtual machine lock manager socket. Oct 28 15:19:02 systemd[1]: Closed Libvirt local read-only socket. Oct 28 15:19:02 systemd[1]: Stopping Libvirt local read-only socket. Oct 28 15:19:02 systemd[1]: Closed Libvirt local socket. Oct 28 15:19:02 systemd[1]: Stopping Libvirt local socket. Oct 28 15:19:02 systemd[1]: Listening on Libvirt local socket. Oct 28 15:19:02 systemd[1]: Listening on Libvirt admin socket. Oct 28 15:19:02 systemd[1]: Listening on Libvirt local read-only socket. Oct 28 15:19:02 systemd[1]: Closed Virtual machine log manager socket. Oct 28 15:19:02 systemd[1]: Stopping Virtual machine log manager socket. Oct 28 15:19:02 systemd[1]: Listening on Virtual machine log manager socket. Oct 28 15:19:02 systemd[1]: Starting Virtualization daemon... Oct 28 15:19:02 systemd[1]: Stopping Suspend/Resume Running libvirt Guests... Oct 28 15:19:02 systemd[1]: Started Virtualization daemon. Oct 28 15:19:02 libvirt-guests.sh[4912]: Running guests on default URI: no running guests. Oct 28 15:19:02 systemd[1]: Stopped Suspend/Resume Running libvirt Guests. Oct 28 15:19:02 systemd[1]: Stopped target Libvirt guests shutdown. Oct 28 15:19:02 systemd[1]: Stopping Libvirt guests shutdown. Oct 28 15:19:02 systemd[1]: Reached target Libvirt guests shutdown. Oct 28 15:19:02 systemd[1]: Starting Suspend/Resume Running libvirt Guests... Oct 28 15:19:02 systemd[1]: Started Suspend/Resume Running libvirt Guests. Adding 'Requires=libvirtd.service' to virt-guest-shutdown.target results in expected behavior Oct 28 15:40:00 systemd[1]: Stopping Suspend/Resume Running libvirt Guests... Oct 28 15:40:00 libvirt-guests.sh[5245]: Running guests on default URI: no running guests. Oct 28 15:40:00 systemd[1]: Stopped Suspend/Resume Running libvirt Guests. Oct 28 15:40:00 systemd[1]: Stopped target Libvirt guests shutdown. Oct 28 15:40:00 systemd[1]: Stopping Libvirt guests shutdown. Oct 28 15:40:00 systemd[1]: Stopping Virtualization daemon... Oct 28 15:40:00 systemd[1]: Stopped Virtualization daemon. Oct 28 15:40:00 systemd[1]: Closed Virtual machine log manager socket. Oct 28 15:40:00 systemd[1]: Stopping Virtual machine log manager socket. Oct 28 15:40:00 systemd[1]: Listening on Virtual machine log manager socket. Oct 28 15:40:00 systemd[1]: Closed Libvirt admin socket. Oct 28 15:40:00 systemd[1]: Stopping Libvirt admin socket. Oct 28 15:40:00 systemd[1]: Closed Libvirt local read-only socket. Oct 28 15:40:00 systemd[1]: Stopping Libvirt local read-only socket. Oct 28 15:40:00 systemd[1]: Closed Libvirt local socket. Oct 28 15:40:00 systemd[1]: Stopping Libvirt local socket. Oct 28 15:40:00 systemd[1]: Listening on Libvirt local socket. Oct 28 15:40:00 systemd[1]: Listening on Libvirt admin socket. Oct 28 15:40:00 systemd[1]: Listening on Libvirt local read-only socket. Oct 28 15:40:00 systemd[1]: Closed Virtual machine lock manager socket. Oct 28 15:40:00 systemd[1]: Stopping Virtual machine lock manager socket. Oct 28 15:40:00 systemd[1]: Listening on Virtual machine lock manager socket. Oct 28 15:40:00 systemd[1]: Starting Virtualization daemon... Oct 28 15:40:00 systemd[1]: Started Virtualization daemon. Oct 28 15:40:00 systemd[1]: Reached target Libvirt guests shutdown. Oct 28 15:40:00 systemd[1]: Starting Suspend/Resume Running libvirt Guests... Oct 28 15:40:00 systemd[1]: Started Suspend/Resume Running libvirt Guests. Signed-off-by: Jim Fehlig <jfehlig(a)suse.com> --- I asked about this on the dev list but it is probably best to send a patch for discussion instead. https://www.redhat.com/archives/libvir-list/2020-October/msg01492.html src/remote/virt-guest-shutdown.target | 1 + 1 file changed, 1 insertion(+) diff --git a/src/remote/virt-guest-shutdown.target b/src/remote/virt-guest-shutdown.target index 25d4aaa267..e2efa3e63a 100644 --- a/src/remote/virt-guest-shutdown.target +++ b/src/remote/virt-guest-shutdown.target @@ -1,3 +1,4 @@ [Unit] Description=Libvirt guests shutdown +Requires=libvirtd.service Documentation=https://libvirt.org -- 2.28.0

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failed to start vm after add vsock device
by longguang.yue 28 Jan '21

28 Jan '21

Hi, all: there is no error when launch qemu-kvm from cli directly, but vm fails to start via libvirtd. i have tried to chmod 0666 /dev/vhost-vsock. error: internal error: qemu unexpectedly closed the monitor: 2021-01-26T13:06:06.403097Z qemu-kvm: -device vhost-vsock-pci,id=vhost-vsock-pci0,guest-cid=4: vhost-vsock: failed to open vhost device: Unknown error -13 <qemu:commandline> <qemu:arg value='-device'/> <qemu:arg value='vhost-vsock-pci,id=vhost-vsock-pci0,guest-cid=4'/> </qemu:commandline> thanks

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Re: [RFC] Change default ipv6 network from fec0/10 (site local) to fe80/10 (link local)
by Philippe Mathieu-Daudé 27 Jan '21

27 Jan '21

Hi Doug, Cc'ing more developers. On 1/27/21 8:13 PM, Doug Evans wrote: > Hi. > > This is just an information gathering question. I don't know enough to > formally propose the change. > I happened to notice QEMU's default for the ipv6 network is fec0::/10 > which is deprecated (RFC3879). > I think(!) an obvious replacement is fe80::/10, link local. > > Has anyone thought about this issue or know of reasons why we shouldn't > make this change? I'm a bit worried this could break various scripts and firewall rules where this is the expected default range...

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