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Issue 90 Further Clarifications
by Dustan B Helm 04 Dec '20

04 Dec '20

[image: Dustan Helm] <https://gitlab.com/dustan.helm> Dustan Helm <https://gitlab.com/dustan.helm> @dustan.helm <https://gitlab.com/dustan.helm> · just now <https://gitlab.com/libvirt/libvirt/-/issues/90#note_451306432> <https://gitlab.com/libvirt/libvirt/-/issues/90#> Before we start making changes and solidifying our XML parameter choices, we have a few clarifying questions about the issue we'd like to get out of the way. 1. In src/qemu/qemu_capabilities.h, we found the string "/* -drive file.driver=vxhs via query-qmp-schema */" after the QEMU_CAPS_VXHS declaration. What is the purpose of these strings, and how do we modify them to make sense for nfs? Would we simply mirror what is done for VXHS, adding nfs as the protocol instead? 2. Where is domain XML parsed and formatted? Is that what is referred to by the schema formats in domaincommon.rng? 3. In src/qemu/qemu_block.c, the json object arguments currently present in qemuBlockStorageSourceGetVxHSProps(...) are not the same ones listed in the example commit. What is the reason for this change, and how should we take it into account when implementing a new protocol type? Additionally, we were hoping we could get some clarification on the proper way to handle submitting patches with multiple commits. If we receive feedback for only part of a patch, for example, how would we be meant to update it? Would we simply amend the particular commit that needed updates, and if so, how do we amend a commit other than the most recent commit? Should we send in our patches for review one at a time, or try to get all of them made and then send them in all at once?

4 12

[PATCH 0/2] security: A couple of fixes
by Jim Fehlig 04 Dec '20

04 Dec '20

I finally got around to investigating some apparmor-related test failures. The first patch is apparmor specific. The second patch fixes a bug that should affect all security drivers. Jim Fehlig (2): apparmor: Allow lxc processes to receive signals from libvirt security: Avoid calling virSecurityManagerCheckModel with NULL model src/security/apparmor/libvirt-lxc | 4 ++++ src/security/security_manager.c | 3 +++ 2 files changed, 7 insertions(+) -- 2.29.2

3 5

[PATCH 00/18] qapi/qom: QAPIfy object-add
by Kevin Wolf 03 Dec '20

03 Dec '20

This series adds a QAPI type for the properties of all user creatable QOM types and finally makes QMP object-add use the new ObjectOptions union so that QAPI introspection can be used for user creatable objects. If you are in the CC list and didn't expect this series, it's probably because you're the maintainer of one of the objects for which I'm adding a QAPI schema description. Please just have a look at the specific patch for your object and check whether the schema and its documentation make sense to you. You can ignore all other patches. After this series, there is least one obvious next step that needs to be done: Change HMP and all of the command line parser to use ObjectOptions, too, so that the QAPI schema is consistently enforced in all external interfaces. I am planning to send another series to address this. In a third step, we can try to start deduplicating and integrating things better between QAPI and the QOM implementation, e.g. by generating parts of the QOM boilerplate from the QAPI schema. Kevin Wolf (18): qapi/qom: Add ObjectOptions for iothread qapi/qom: Add ObjectOptions for authz-* qapi/qom: Add ObjectOptions for cryptodev-* qapi/qom: Add ObjectOptions for dbus-vmstate qapi/qom: Add ObjectOptions for memory-backend-* qapi/qom: Add ObjectOptions for rng-*, deprecate 'opened' qapi/qom: Add ObjectOptions for throttle-group qapi/qom: Add ObjectOptions for secret*, deprecate 'loaded' qapi/qom: Add ObjectOptions for tls-*, deprecate 'loaded' qapi/qom: Add ObjectOptions for can-* qapi/qom: Add ObjectOptions for colo-compare qapi/qom: Add ObjectOptions for filter-* qapi/qom: Add ObjectOptions for pr-manager-helper qapi/qom: Add ObjectOptions for sev-guest qapi/qom: Add ObjectOptions for input-* tests: Drop 'props' from object-add calls qapi/qom: Drop deprecated 'props' from object-add qapi/qom: QAPIfy object-add qapi/authz.json | 62 +++ qapi/block-core.json | 12 + qapi/common.json | 52 +++ qapi/crypto.json | 159 +++++++ qapi/machine.json | 22 +- qapi/net.json | 20 - qapi/qom.json | 609 ++++++++++++++++++++++++++- qapi/ui.json | 13 +- docs/system/deprecated.rst | 29 +- include/qom/object_interfaces.h | 7 - hw/block/xen-block.c | 16 +- monitor/misc.c | 2 - qom/qom-qmp-cmds.c | 44 +- tests/qtest/qmp-cmd-test.c | 16 +- tests/qtest/test-netfilter.c | 54 ++- storage-daemon/qapi/qapi-schema.json | 1 + tests/qemu-iotests/087 | 8 +- tests/qemu-iotests/184 | 18 +- tests/qemu-iotests/218 | 2 +- tests/qemu-iotests/235 | 2 +- tests/qemu-iotests/245 | 4 +- tests/qemu-iotests/258 | 6 +- tests/qemu-iotests/258.out | 4 +- tests/qemu-iotests/295 | 2 +- tests/qemu-iotests/296 | 2 +- 25 files changed, 993 insertions(+), 173 deletions(-) -- 2.28.0

7 59

[PATCH libvirt v2 00/11] Support AP card, AP queues and AP matrix
by Shalini Chellathurai Saroja 03 Dec '20

03 Dec '20

Add support for AP card devices, AP queues and AP matrix devices in libvirt node device driver. --- v2: - The tests included in the patches to detect the node devices (AP card, AP queues and AP matrix) are moved to separate patches. These patches are not divided further due to the following reasons: - The previous patches that add support for node devices in libvirt are not divided further into smaller patches (eg: 53aec799fa31711ffaeacc7ec17ec6d3c2e3cadf). - It would be easier to identify the patches relevant to support AP node devices. - The number of lines in each of these patches are around 125, which is not too much. - Modified according to review comments. - New patch to detect mdev_types capabilty of AP matrix device is added to this patch series. Boris Fiuczynski (1): node_device: detecting mdev_types capability on ap_matrix device Farhan Ali (1): virsh: nodedev: Filter by AP card and AP queue capabilities Shalini Chellathurai Saroja (9): nodedev: detect AP card device tests: AP card node device nodedev: detect AP queues tests: AP queue node device nodedev: detect AP matrix device tests: AP matrix node device virsh: nodedev: filter by AP Matrix capability node_device: refactor address retrieval of node device node_device: mdev matrix support docs/formatnode.html.in | 44 +++- docs/manpages/virsh.rst | 2 +- docs/schemas/nodedev.rng | 70 +++++- include/libvirt/libvirt-nodedev.h | 3 + src/conf/node_device_conf.c | 213 +++++++++++++++++- src/conf/node_device_conf.h | 41 +++- src/conf/virnodedeviceobj.c | 13 +- src/libvirt-nodedev.c | 3 + src/libvirt_private.syms | 1 + src/node_device/node_device_driver.c | 33 ++- src/node_device/node_device_udev.c | 83 +++++++ tests/nodedevschemadata/ap_07_0038.xml | 9 + tests/nodedevschemadata/ap_card07.xml | 8 + tests/nodedevschemadata/ap_matrix.xml | 7 + .../ap_matrix_mdev_types.xml | 14 ++ ...v_ee0b88c4_f554_4dc1_809d_b2a01e8e48ad.xml | 9 + tests/nodedevxml2xmltest.c | 5 + tools/virsh-nodedev.c | 9 + 18 files changed, 554 insertions(+), 13 deletions(-) create mode 100644 tests/nodedevschemadata/ap_07_0038.xml create mode 100644 tests/nodedevschemadata/ap_card07.xml create mode 100644 tests/nodedevschemadata/ap_matrix.xml create mode 100644 tests/nodedevschemadata/ap_matrix_mdev_types.xml create mode 100644 tests/nodedevschemadata/mdev_ee0b88c4_f554_4dc1_809d_b2a01e8e48ad.xml -- 2.26.2

5 28

[libvirt PATCH 0/2] tests: Sync and simplify some ppc64 tests
by Andrea Bolognani 03 Dec '20

03 Dec '20

Inspired by https://www.redhat.com/archives/libvir-list/2020-November/msg01057.html Andrea Bolognani (2): tests: Sync some ppc64 tests tests: Simplify some ppc64 tests .../memory-hotplug-nvdimm-ppc64.args | 6 +-- ...ory-hotplug-nvdimm-ppc64.ppc64-latest.args | 38 ------------------- .../memory-hotplug-nvdimm-ppc64.xml | 8 +--- .../memory-hotplug-ppc64-nonuma.args | 7 +--- .../memory-hotplug-ppc64-nonuma.xml | 14 +++++-- tests/qemuxml2argvtest.c | 4 +- .../memory-hotplug-nvdimm-ppc64.xml | 8 +--- .../memory-hotplug-ppc64-nonuma.xml | 1 + tests/qemuxml2xmltest.c | 5 +++ 9 files changed, 26 insertions(+), 65 deletions(-) delete mode 100644 tests/qemuxml2argvdata/memory-hotplug-nvdimm-ppc64.ppc64-= latest.args create mode 120000 tests/qemuxml2xmloutdata/memory-hotplug-ppc64-nonuma.xml --=20 2.26.2

3 7

[libvirt PATCH] conf: Fix segfault when parsing mdev types
by Jonathon Jongsma 03 Dec '20

03 Dec '20

Commit f1b0890 introduced a potential crash due to incorrect operator precedence when accessing an element from a pointer to an array. Backtrace below: #0 virNodeDeviceGetMdevTypesCaps (sysfspath=0x7fff801661e0 "/sys/devices/pci0000:00/0000:00:02.0", mdev_types=0x7fff801c9b40, nmdev_types=0x7fff801c9b48) at ../src/conf/node_device_conf.c:2676 #1 0x00007ffff7caf53d in virNodeDeviceGetPCIDynamicCaps (sysfsPath=0x7fff801661e0 "/sys/devices/pci0000:00/0000:00:02.0", pci_dev=0x7fff801c9ac8) at ../src/conf/node_device_conf.c:2705 #2 0x00007ffff7cae38f in virNodeDeviceUpdateCaps (def=0x7fff80168a10) at ../src/conf/node_device_conf.c:2342 #3 0x00007ffff7cb11c0 in virNodeDeviceObjMatch (obj=0x7fff84002e50, flags=0) at ../src/conf/virnodedeviceobj.c:850 #4 0x00007ffff7cb153d in virNodeDeviceObjListExportCallback (payload=0x7fff84002e50, name=0x7fff801cbc20 "pci_0000_00_02_0", opaque=0x7fffe2ffc6a0) at ../src/conf/virnodedeviceobj.c:909 #5 0x00007ffff7b69146 in virHashForEach (table=0x7fff9814b700 = {...}, iter=0x7ffff7cb149e <virNodeDeviceObjListExportCallback>, opaque=0x7fffe2ffc6a0) at ../src/util/virhash.c:394 #6 0x00007ffff7cb1694 in virNodeDeviceObjListExport (conn=0x7fff98013170, devs=0x7fff98154430, devices=0x7fffe2ffc798, filter=0x7ffff7cf47a1 <virConnectListAllNodeDevicesCheckACL>, flags=0) at ../src/conf/virnodedeviceobj.c:943 #7 0x00007fffe00694b2 in nodeConnectListAllNodeDevices (conn=0x7fff98013170, devices=0x7fffe2ffc798, flags=0) at ../src/node_device/node_device_driver.c:228 #8 0x00007ffff7e703aa in virConnectListAllNodeDevices (conn=0x7fff98013170, devices=0x7fffe2ffc798, flags=0) at ../src/libvirt-nodedev.c:130 #9 0x000055555557f796 in remoteDispatchConnectListAllNodeDevices (server=0x555555627080, client=0x5555556bf050, msg=0x5555556c0000, rerr=0x7fffe2ffc8a0, args=0x7fffd4008470, ret=0x7fffd40084e0) at src/remote/remote_daemon_dispatch_stubs.h:1613 #10 0x000055555557f6f9 in remoteDispatchConnectListAllNodeDevicesHelper (server=0x555555627080, client=0x5555556bf050, msg=0x5555556c0000, rerr=0x7fffe2ffc8a0, args=0x7fffd4008470, ret=0x7fffd40084e0) at src/remote/remote_daemon_dispatch_stubs.h:1591 #11 0x00007ffff7ce9542 in virNetServerProgramDispatchCall (prog=0x555555690c10, server=0x555555627080, client=0x5555556bf050, msg=0x5555556c0000) at ../src/rpc/virnetserverprogram.c:428 #12 0x00007ffff7ce90bd in virNetServerProgramDispatch (prog=0x555555690c10, server=0x555555627080, client=0x5555556bf050, msg=0x5555556c0000) at ../src/rpc/virnetserverprogram.c:302 #13 0x00007ffff7cf042b in virNetServerProcessMsg (srv=0x555555627080, client=0x5555556bf050, prog=0x555555690c10, msg=0x5555556c0000) at ../src/rpc/virnetserver.c:137 #14 0x00007ffff7cf04eb in virNetServerHandleJob (jobOpaque=0x5555556b66b0, opaque=0x555555627080) at ../src/rpc/virnetserver.c:154 #15 0x00007ffff7bd912f in virThreadPoolWorker (opaque=0x55555562bc70) at ../src/util/virthreadpool.c:163 #16 0x00007ffff7bd8645 in virThreadHelper (data=0x55555562bc90) at ../src/util/virthread.c:233 #17 0x00007ffff6d90432 in start_thread () at /lib64/libpthread.so.0 #18 0x00007ffff75c5913 in clone () at /lib64/libc.so.6 Signed-off-by: Jonathon Jongsma <jjongsma(a)redhat.com> --- src/conf/node_device_conf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/conf/node_device_conf.c b/src/conf/node_device_conf.c index 4e2837c1cd..cac4243b50 100644 --- a/src/conf/node_device_conf.c +++ b/src/conf/node_device_conf.c @@ -2673,7 +2673,7 @@ virNodeDeviceGetMdevTypesCaps(const char *sysfspath, /* this could be a refresh, so clear out the old data */ for (i = 0; i < *nmdev_types; i++) - virMediatedDeviceTypeFree(*mdev_types[i]); + virMediatedDeviceTypeFree((*mdev_types)[i]); VIR_FREE(*mdev_types); *nmdev_types = 0; -- 2.26.2

3 2

[PATCH libvirt v3 00/11] Support AP card, AP queues and AP matrix
by Shalini Chellathurai Saroja 03 Dec '20

03 Dec '20

Add support for AP card devices, AP queues and AP matrix devices in libvirt node device driver. --- v3: - Modify schema definition of ap-adapter to support hex values alone. - Modify schema definition of ap-domain to support hex values alone. - Verify domain value of AP queue device to be within the supported range during parsing. - Re-organized patches 6 and 10 according to review comment. - Minor changes according to review comments. v2: - The tests included in the patches to detect the node devices (AP card, AP queues and AP matrix) are moved to separate patches. These patches are not divided further due to the following reasons: - The previous patches that add support for node devices in libvirt are not divided further into smaller patches (eg: 53aec799fa31711ffaeacc7ec17ec6d3c2e3cadf). - It would be easier to identify the patches relevant to support AP node devices. - The number of lines in each of these patches are around 125, which is not too much. - Modified according to review comments. - New patch to detect mdev_types capabilty of AP matrix device is added to this patch series. Boris Fiuczynski (1): node_device: detecting mdev_types capability on ap_matrix device Farhan Ali (1): virsh: nodedev: Filter by AP card and AP queue capabilities Shalini Chellathurai Saroja (9): nodedev: detect AP card device tests: AP card node device nodedev: detect AP queues tests: AP queue node device nodedev: detect AP matrix device tests: AP matrix node device virsh: nodedev: filter by AP Matrix capability node_device: refactor address retrieval of node device node_device: mdev matrix support docs/formatnode.html.in | 48 +++- docs/manpages/virsh.rst | 2 +- docs/schemas/nodedev.rng | 46 ++++ include/libvirt/libvirt-nodedev.h | 3 + src/conf/node_device_conf.c | 218 ++++++++++++++++++ src/conf/node_device_conf.h | 41 +++- src/conf/virnodedeviceobj.c | 13 +- src/libvirt-nodedev.c | 3 + src/libvirt_private.syms | 1 + src/node_device/node_device_driver.c | 33 ++- src/node_device/node_device_udev.c | 86 +++++++ tests/nodedevschemadata/ap_07_0038.xml | 9 + tests/nodedevschemadata/ap_card07.xml | 8 + tests/nodedevschemadata/ap_matrix.xml | 7 + .../ap_matrix_mdev_types.xml | 14 ++ ...v_ee0b88c4_f554_4dc1_809d_b2a01e8e48ad.xml | 9 + tests/nodedevxml2xmltest.c | 5 + tools/virsh-nodedev.c | 9 + 18 files changed, 549 insertions(+), 6 deletions(-) create mode 100644 tests/nodedevschemadata/ap_07_0038.xml create mode 100644 tests/nodedevschemadata/ap_card07.xml create mode 100644 tests/nodedevschemadata/ap_matrix.xml create mode 100644 tests/nodedevschemadata/ap_matrix_mdev_types.xml create mode 100644 tests/nodedevschemadata/mdev_ee0b88c4_f554_4dc1_809d_b2a01e8e48ad.xml -- 2.26.2

3 18

[PATCH 0/4] libvirt_recover_xattrs: Improve usability for libvirt development
by Peter Krempa 03 Dec '20

03 Dec '20

I run into scenarios where I forget to destroy a VM which has a new WIP qemu capability. Starting a libvirtd which doesn't support it yet makes the libvirt vanish, thus after manually killing it libvirtd doesn't clear the xattrs, making it impossible to start the VM. libvirt_recover_xattrs fixes this, but is unusable unless you want to turn off all VMs. Peter Krempa (4): libvirt_recover_xattrs: Avoid backticks for subshell libvirt_recover_xattrs: Use only the correct xattr prefix libvirt_recover_xattrs: Add unsafe operation mode libvirt_recover_xattrs: Allow fixing multiple PATHs tools/libvirt_recover_xattrs.sh | 64 ++++++++++++++++++++++----------- 1 file changed, 43 insertions(+), 21 deletions(-) -- 2.28.0

2 5

[PATCH v2] qemu: Pass / fill niothreads for qemuMonitorGetIOThreads
by John Ferlan 03 Dec '20

03 Dec '20

Let's pass along / fill @niothreads rather than trying to make dual use as a return value and thread count. This resolves a Coverity issue detected in qemuDomainGetIOThreadsMon where if qemuDomainObjExitMonitor failed, then a -1 was returned and overwrite @niothreads causing a memory leak. Signed-off-by: John Ferlan <jferlan(a)redhat.com> --- Since v1, updated the logic to pass @niothreads around rather than rely on the dual meaning. Took the full plunge. src/qemu/qemu_driver.c | 23 +++++++++++------------ src/qemu/qemu_monitor.c | 8 +++++--- src/qemu/qemu_monitor.h | 3 ++- src/qemu/qemu_monitor_json.c | 6 ++++-- src/qemu/qemu_monitor_json.h | 3 ++- src/qemu/qemu_process.c | 4 ++-- tests/qemumonitorjsontest.c | 4 ++-- 7 files changed, 28 insertions(+), 23 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index bca1c84630..65725b2ef2 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -4972,17 +4972,18 @@ qemuDomainGetMaxVcpus(virDomainPtr dom) static int qemuDomainGetIOThreadsMon(virQEMUDriverPtr driver, virDomainObjPtr vm, - qemuMonitorIOThreadInfoPtr **iothreads) + qemuMonitorIOThreadInfoPtr **iothreads, + int *niothreads) { qemuDomainObjPrivatePtr priv = vm->privateData; - int niothreads = 0; + int ret = -1; qemuDomainObjEnterMonitor(driver, vm); - niothreads = qemuMonitorGetIOThreads(priv->mon, iothreads); - if (qemuDomainObjExitMonitor(driver, vm) < 0 || niothreads < 0) + ret = qemuMonitorGetIOThreads(priv->mon, iothreads, niothreads); + if (qemuDomainObjExitMonitor(driver, vm) < 0) return -1; - return niothreads; + return ret; } @@ -5014,7 +5015,7 @@ qemuDomainGetIOThreadsLive(virQEMUDriverPtr driver, goto endjob; } - if ((niothreads = qemuDomainGetIOThreadsMon(driver, vm, &iothreads)) < 0) + if ((ret = qemuDomainGetIOThreadsMon(driver, vm, &iothreads, &niothreads)) < 0) goto endjob; /* Nothing to do */ @@ -5314,8 +5315,7 @@ qemuDomainHotplugAddIOThread(virQEMUDriverPtr driver, * IOThreads thread_id's, adjust the cgroups, thread affinity, * and add the thread_id to the vm->def->iothreadids list. */ - if ((new_niothreads = qemuMonitorGetIOThreads(priv->mon, - &new_iothreads)) < 0) + if (qemuMonitorGetIOThreads(priv->mon, &new_iothreads, &new_niothreads) < 0) goto exit_monitor; if (qemuDomainObjExitMonitor(driver, vm) < 0) @@ -5425,8 +5425,7 @@ qemuDomainHotplugDelIOThread(virQEMUDriverPtr driver, if (rc < 0) goto exit_monitor; - if ((new_niothreads = qemuMonitorGetIOThreads(priv->mon, - &new_iothreads)) < 0) + if (qemuMonitorGetIOThreads(priv->mon, &new_iothreads, &new_niothreads) < 0) goto exit_monitor; if (qemuDomainObjExitMonitor(driver, vm) < 0) @@ -18507,7 +18506,7 @@ qemuDomainGetStatsIOThread(virQEMUDriverPtr driver, qemuDomainObjPrivatePtr priv = dom->privateData; size_t i; qemuMonitorIOThreadInfoPtr *iothreads = NULL; - int niothreads; + int niothreads = 0; int ret = -1; if (!HAVE_JOB(privflags) || !virDomainObjIsActive(dom)) @@ -18516,7 +18515,7 @@ qemuDomainGetStatsIOThread(virQEMUDriverPtr driver, if (!virQEMUCapsGet(priv->qemuCaps, QEMU_CAPS_OBJECT_IOTHREAD)) return 0; - if ((niothreads = qemuDomainGetIOThreadsMon(driver, dom, &iothreads)) < 0) + if (qemuDomainGetIOThreadsMon(driver, dom, &iothreads, &niothreads) < 0) return -1; /* qemuDomainGetIOThreadsMon returns a NULL-terminated list, so we must free diff --git a/src/qemu/qemu_monitor.c b/src/qemu/qemu_monitor.c index ce1a06c4c8..551b65e778 100644 --- a/src/qemu/qemu_monitor.c +++ b/src/qemu/qemu_monitor.c @@ -4211,22 +4211,24 @@ qemuMonitorRTCResetReinjection(qemuMonitorPtr mon) * qemuMonitorGetIOThreads: * @mon: Pointer to the monitor * @iothreads: Location to return array of IOThreadInfo data + * @niothreads: Count of the number of IOThreads in the array * * Issue query-iothreads command. * Retrieve the list of iothreads defined/running for the machine * - * Returns count of IOThreadInfo structures on success + * Returns 0 on success * -1 on error. */ int qemuMonitorGetIOThreads(qemuMonitorPtr mon, - qemuMonitorIOThreadInfoPtr **iothreads) + qemuMonitorIOThreadInfoPtr **iothreads, + int *niothreads) { VIR_DEBUG("iothreads=%p", iothreads); QEMU_CHECK_MONITOR(mon); - return qemuMonitorJSONGetIOThreads(mon, iothreads); + return qemuMonitorJSONGetIOThreads(mon, iothreads, niothreads); } diff --git a/src/qemu/qemu_monitor.h b/src/qemu/qemu_monitor.h index 8bc092870b..49be2d5412 100644 --- a/src/qemu/qemu_monitor.h +++ b/src/qemu/qemu_monitor.h @@ -1365,7 +1365,8 @@ struct _qemuMonitorIOThreadInfo { bool set_poll_shrink; }; int qemuMonitorGetIOThreads(qemuMonitorPtr mon, - qemuMonitorIOThreadInfoPtr **iothreads); + qemuMonitorIOThreadInfoPtr **iothreads, + int *niothreads); int qemuMonitorSetIOThread(qemuMonitorPtr mon, qemuMonitorIOThreadInfoPtr iothreadInfo); diff --git a/src/qemu/qemu_monitor_json.c b/src/qemu/qemu_monitor_json.c index 5acc1a10aa..f70490d9b0 100644 --- a/src/qemu/qemu_monitor_json.c +++ b/src/qemu/qemu_monitor_json.c @@ -8072,7 +8072,8 @@ qemuMonitorJSONRTCResetReinjection(qemuMonitorPtr mon) */ int qemuMonitorJSONGetIOThreads(qemuMonitorPtr mon, - qemuMonitorIOThreadInfoPtr **iothreads) + qemuMonitorIOThreadInfoPtr **iothreads, + int *niothreads) { int ret = -1; virJSONValuePtr cmd; @@ -8149,9 +8150,10 @@ qemuMonitorJSONGetIOThreads(qemuMonitorPtr mon, info->poll_valid = true; } - ret = n; + *niothreads = n; *iothreads = infolist; infolist = NULL; + ret = 0; cleanup: if (infolist) { diff --git a/src/qemu/qemu_monitor_json.h b/src/qemu/qemu_monitor_json.h index d2928b0ffc..4eb0f667a2 100644 --- a/src/qemu/qemu_monitor_json.h +++ b/src/qemu/qemu_monitor_json.h @@ -550,7 +550,8 @@ int qemuMonitorJSONGetGuestCPU(qemuMonitorPtr mon, int qemuMonitorJSONRTCResetReinjection(qemuMonitorPtr mon); int qemuMonitorJSONGetIOThreads(qemuMonitorPtr mon, - qemuMonitorIOThreadInfoPtr **iothreads) + qemuMonitorIOThreadInfoPtr **iothreads, + int *niothreads) ATTRIBUTE_NONNULL(2); int qemuMonitorJSONSetIOThread(qemuMonitorPtr mon, diff --git a/src/qemu/qemu_process.c b/src/qemu/qemu_process.c index 20e90026e1..01afe66ec9 100644 --- a/src/qemu/qemu_process.c +++ b/src/qemu/qemu_process.c @@ -2498,10 +2498,10 @@ qemuProcessDetectIOThreadPIDs(virQEMUDriverPtr driver, /* Get the list of IOThreads from qemu */ if (qemuDomainObjEnterMonitorAsync(driver, vm, asyncJob) < 0) goto cleanup; - niothreads = qemuMonitorGetIOThreads(priv->mon, &iothreads); + ret = qemuMonitorGetIOThreads(priv->mon, &iothreads, &niothreads); if (qemuDomainObjExitMonitor(driver, vm) < 0) goto cleanup; - if (niothreads < 0) + if (ret < 0) goto cleanup; if (niothreads != vm->def->niothreadids) { diff --git a/tests/qemumonitorjsontest.c b/tests/qemumonitorjsontest.c index 79ef2a545e..d0c37967d5 100644 --- a/tests/qemumonitorjsontest.c +++ b/tests/qemumonitorjsontest.c @@ -2377,8 +2377,8 @@ testQemuMonitorJSONGetIOThreads(const void *opaque) "}") < 0) goto cleanup; - if ((ninfo = qemuMonitorGetIOThreads(qemuMonitorTestGetMonitor(test), - &info)) < 0) + if (qemuMonitorGetIOThreads(qemuMonitorTestGetMonitor(test), + &info, &ninfo) < 0) goto cleanup; if (ninfo != 2) { -- 2.28.0

2 1

[libvirt PATCH] util: squelch G_DEFINE_TYPE volatile warnings with GCC 11
by Daniel P. Berrangé 03 Dec '20

03 Dec '20

In this previous commit: commit 65491a2dfe00bfcf9f09a8d6eab60234b56c8cc4 Author: Martin Kletzander <mkletzan(a)redhat.com> Date: Thu Nov 12 13:58:53 2020 +0100 Do not disable incompatible-pointer-types-discards-qualifiers We selectively rewrite G_DEFINE_TYPE to avoid warnings about mismatched volatile/non-volatile pointers that appeared with CLang when using GLib2 >= 2.67 We have now just hit the reverse problem, GCC >= 11 has started warning about mismatched volatile/non-volatile pointers but only with GLib2 < 2.67. The new GLib2 avoids the warning, as does older GCC. Signed-off-by: Daniel P. Berrangé <berrange(a)redhat.com> --- src/util/glibcompat.h | 31 +++++++++++++++++++++++++++---- 1 file changed, 27 insertions(+), 4 deletions(-) diff --git a/src/util/glibcompat.h b/src/util/glibcompat.h index 457f6ba797..455324925f 100644 --- a/src/util/glibcompat.h +++ b/src/util/glibcompat.h @@ -22,7 +22,10 @@ #include <glib/gstdio.h> #include <glib-object.h> -#if defined(__clang__) && GLIB_CHECK_VERSION(2, 67, 0) +#if GLIB_CHECK_VERSION(2, 67, 0) + +# if defined(__clang__) + /* * Clang detects (valid) issue in G_DEFINE_TYPE and derivatives starting with * glib >= 2.67.0. See https://gitlab.gnome.org/GNOME/glib/-/issues/600 @@ -34,16 +37,36 @@ * is defined in glib (with a very low probability of being changed thanks to a * comment above it). */ -# undef _G_DEFINE_TYPE_EXTENDED_BEGIN +# undef _G_DEFINE_TYPE_EXTENDED_BEGIN -# define _G_DEFINE_TYPE_EXTENDED_BEGIN(TypeName, type_name, TYPE_PARENT, flags) \ +# define _G_DEFINE_TYPE_EXTENDED_BEGIN(TypeName, type_name, TYPE_PARENT, flags) \ _Pragma("GCC diagnostic push") \ _Pragma("GCC diagnostic ignored \"-Wincompatible-pointer-types-discards-qualifiers\"") \ _G_DEFINE_TYPE_EXTENDED_BEGIN_PRE(TypeName, type_name, TYPE_PARENT) \ _G_DEFINE_TYPE_EXTENDED_BEGIN_REGISTER(TypeName, type_name, TYPE_PARENT, flags) \ _Pragma("GCC diagnostic pop") -#endif /* __clang__ */ +# endif /* __clang__ */ + +#else /* GLib < 2.67.0 */ + +/* + * ...meanwhile GCC >= 11 has started issuing warnings about volatile + * from the old G_DEFINE_TYPE macro impl. IOW the new macros impls fixed + * new GCC, but broke CLang + */ +# if !defined(__clang__) && __GNUC_PREREQ (11, 0) +# undef _G_DEFINE_TYPE_EXTENDED_BEGIN + +# define _G_DEFINE_TYPE_EXTENDED_BEGIN(TypeName, type_name, TYPE_PARENT, flags) \ + _Pragma("GCC diagnostic push") \ + _Pragma("GCC diagnostic ignored \"-Wincompatible-pointer-types\"") \ + _G_DEFINE_TYPE_EXTENDED_BEGIN_PRE(TypeName, type_name, TYPE_PARENT) \ + _G_DEFINE_TYPE_EXTENDED_BEGIN_REGISTER(TypeName, type_name, TYPE_PARENT, flags) \ + _Pragma("GCC diagnostic pop") +# endif /* !clang */ + +#endif /* GLib < 2.67.0 */ gchar * vir_g_canonicalize_filename(const gchar *filename, const gchar *relative_to); -- 2.25.4

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