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[libvirt] [PATCH] qemu:Fix snapshot creating with vm xml persistent
by Bobo Du 30 Jul '18

30 Jul '18

Bobo Du (1): qemu:Fix snapshot creating with vm xml persistent src/qemu/qemu_blockjob.c | 2 +- src/qemu/qemu_driver.c | 3 ++- 2 files changed, 3 insertions(+), 2 deletions(-) -- 1.8.3.1

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[libvirt] libvirt-dbus build for virt-preview
by Vasiliy Tolstov 28 Jul '18

28 Jul '18

Hi! Does it possible to add libvirt-dbus building for virt-preview repo? My use case - get latest libvirt-dbus in current fedora stable release. -- Vasiliy Tolstov, e-mail: v.tolstov(a)selfip.ru

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[libvirt] [PATCH v2 00/17] Introduce RDT memory bandwidth allocation support
by bing.niu＠intel.com 28 Jul '18

28 Jul '18

From: Bing Niu <bing.niu(a)intel.com> This series is to introduce RDT memory bandwidth allocation support by extending current virresctrl implementation. The Memory Bandwidth Allocation (MBA) feature provides indirect and approximate control over memory bandwidth available per-core. This feature provides a method to control applications which may be over-utilizing bandwidth relative to their priority in environments such as the data-center. The details can be found in Intel's SDM 17.19.7. Kernel supports MBA through resctrl file system same as CAT. Each resctrl group have a MB parameter to control how much memory bandwidth it can utilize in unit of percentage. In this series, MBA is enabled by enhancing existing virresctrl implementation. The policy employed for MBA is similar with CAT: The sum of each MBA group's bandwidth dose not exceed 100%. The enhancement of virresctrl include two main parts: Part 1: Add two new structures virResctrlInfoMemMB and virResctrlAllocMemBW for collecting host system MBA capability and domain memory bandwidth allocation. Those two structures are the extension of existing virResctrlInfo and virResctrlAlloc. With them, virresctrl framework can support MBA and CAT concurrently. Each virResctrlAlloc represent a resource allocation including CAT, or MBA, or CAT&MBA. The policy of MBA is that: total memory bandwidth of each resctrl group, created by virresctrl, does not exceed to 100%. Part 2: On XML part, add new elements to host capabilities query and domain allocation to support memory bandwidth allocation. --------------------------------------------------------------------------------------------- For host capabilities XML, new XML format like below example, <host> ..... <memory_bandwidth> <node id='0' cpus='0-19'> <control granularity='10' min ='10' maxAllocs='8'/> </node> </memory_bandwidth> </host> granularity --- memory bandwidth granularity min --- minimum memory bandwidth allowed maxAllocs --- maximum concurrent memory bandwidth allocation allowed. --------------------------------------------------------------------------------------------- For domain XML, new format as below example <domain type='kvm' id='2'> ...... <cputune> ...... <shares>1024</shares> <memorytune vcpus='0-1'> <node id='0' bandwidth='20'/> </memorytune> </cputune> ...... </domain> id --- node where memory bandwidth allocation will happen bandwidth --- bandwidth allocated in percentage ---------------------------------------------------------------------------------------------- With this extension of the virresctrl, the overall working follow of CAT and MBA is described by below picture. XML parser will aggregate MBA and CAT configuration and represents it in one virresctrl object. The methods of virresctrl class will manipulate resctrl interface to allocate corresponding resources. <memorytune cpus='0-3'> +---------+ | <cachetune vcpus='0-3'> XML | + parser +-----------+ | | +------------------------------+ | | internal object +------v--------------+ virResctrlAlloc | backing object | +------+--------------+ | | +------------------------------+ | +--v-------+ | | | schemata | /sys/fs/resctrl | tasks | | . | | . | | | +----------+ --------------------------------------------------------------------- previous versions and discussion can be found at v1: https://www.redhat.com/archives/libvir-list/2018-July/msg01144.html RFC v2: https://www.redhat.com/archives/libvir-list/2018-June/msg01268.html RFC v1: https://www.redhat.com/archives/libvir-list/2018-May/msg02101.html Changelog: v1 -> this: John's comment: 1. Split calculation of number of memory bandwidth control to one patch. 2. Split virResctrlAllocMemBW relating methods to 5 patch, each provides one kind of function, eg: schemata processing, memory bandwidth calculation..... 3. Use resctrl to replace cachetune in domain conf. 4. Split refactor virDomainCachetuneDefParse into 3 patches. And adjust some logic, eg: use %s format error log, renaming functions..... 5. Complete doc description. eg: update cachetune part about vcpus overlapping with memorytune, update libvirt version info for memory bandwidth control availability. 6. Some coding style fix. RFC_v2->v1: John's comment: 1. use name MemBW to replace MB for a more clear description. 2. split rename patch and put refactor function part separately. 3. split virResctrlInfoMemMB and virResctrlAllocMemBW to different patches. 4. add docs/schemas/*.rng for XML related patches. 5. some cleanup for coding conventions. RFC_ v1->RFC_v2: Jano's comment: 1. put renaming parts into separated patches. 2. set the initial return value as -1. 3. using full name in structure definition. 4. do not use VIR_CACHE_TYPE_LAST for memory bandwidth allocation formatting. Pavel's comment: 1. add host capabilities XML for memory bandwidth allocation. 2. do not mix use cachetune section in XML for memory bandwidth allocation in domain XML. define a dedicated one for memory bandwidth allocation. Bing Niu (17): util: Rename some functions of virresctrl util: Refactor virResctrlGetInfo in virresctrl util: Refactor virResctrlAllocFormat of virresctrl util: Add MBA capability information query to resctrl util: Add MBA check to virResctrlInfoGetCache util: Add MBA allocation to virresctrl util: Add MBA schemata parse and format methods util: Add support to calculate MBA utilization util: Introduce virResctrlAllocForeachMemory util: Introduce virResctrlAllocSetMemoryBandwidth conf: Rename cachetune to resctrl conf: Factor out vcpus parsing part from virDomainCachetuneDefParse conf: Factor out vcpus overlapping from virDomainCachetuneDefParse conf: Factor out virDomainResctrlDef update from virDomainCachetuneDefParse conf: Add support for memorytune XML processing for resctrl MBA conf: Add return value check to virResctrlAllocForeachCache conf: Add memory bandwidth allocation capability of host docs/formatdomain.html.in | 39 +- docs/schemas/capability.rng | 33 ++ docs/schemas/domaincommon.rng | 17 + src/conf/capabilities.c | 107 ++++ src/conf/capabilities.h | 11 + src/conf/domain_conf.c | 427 +++++++++++--- src/conf/domain_conf.h | 10 +- src/libvirt_private.syms | 6 +- src/qemu/qemu_domain.c | 2 +- src/qemu/qemu_process.c | 18 +- src/util/virresctrl.c | 611 +++++++++++++++++++-- src/util/virresctrl.h | 55 +- .../memorytune-colliding-allocs.xml | 30 + .../memorytune-colliding-cachetune.xml | 32 ++ tests/genericxml2xmlindata/memorytune.xml | 33 ++ tests/genericxml2xmltest.c | 5 + .../linux-resctrl/resctrl/info/MB/bandwidth_gran | 1 + .../linux-resctrl/resctrl/info/MB/min_bandwidth | 1 + .../linux-resctrl/resctrl/info/MB/num_closids | 1 + tests/vircaps2xmldata/vircaps-x86_64-resctrl.xml | 8 + tests/virresctrldata/resctrl.schemata | 1 + 21 files changed, 1279 insertions(+), 169 deletions(-) create mode 100644 tests/genericxml2xmlindata/memorytune-colliding-allocs.xml create mode 100644 tests/genericxml2xmlindata/memorytune-colliding-cachetune.xml create mode 100644 tests/genericxml2xmlindata/memorytune.xml create mode 100644 tests/vircaps2xmldata/linux-resctrl/resctrl/info/MB/bandwidth_gran create mode 100644 tests/vircaps2xmldata/linux-resctrl/resctrl/info/MB/min_bandwidth create mode 100644 tests/vircaps2xmldata/linux-resctrl/resctrl/info/MB/num_closids -- 2.7.4

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[libvirt] [PATCH 0/9] Introduce RDT memory bandwidth allocation support
by bing.niu＠intel.com 28 Jul '18

28 Jul '18

From: Bing Niu <bing.niu(a)intel.com> This series is to introduce RDT memory bandwidth allocation support by extending current virresctrl implementation. The Memory Bandwidth Allocation (MBA) feature provides indirect and approximate control over memory bandwidth available per-core. This feature provides a method to control applications which may be over-utilizing bandwidth relative to their priority in environments such as the data-center. The details can be found in Intel's SDM 17.19.7. Kernel supports MBA through resctrl file system same as CAT. Each resctrl group have a MB parameter to control how much memory bandwidth it can utilize in unit of percentage. In this series, MBA is enabled by enhancing existing virresctrl implementation. The policy employed for MBA is similar with CAT: The sum of each MBA group's bandwidth dose not exceed 100%. The enhancement of virresctrl include two main parts: Part 1: Add two new structures virResctrlInfoMemMB and virResctrlAllocMemBW for collecting host system MBA capability and domain memory bandwidth allocation. Those two structures are the extension of existing virResctrlInfo and virResctrlAlloc. With them, virresctrl framework can support MBA and CAT concurrently. Each virResctrlAlloc represent a resource allocation including CAT, or MBA, or CAT&MBA. The policy of MBA is that: total memory bandwidth of each resctrl group, created by virresctrl, does not exceed to 100%. Part 2: On XML part, add new elements to host capabilities query and domain allocation to support memory bandwidth allocation. --------------------------------------------------------------------------------------------- For host capabilities XML, new XML format like below example, <host> ..... <memory_bandwidth> <node id='0' cpus='0-19'> <control granularity='10' min ='10' maxAllocs='8'/> </node> </memory_bandwidth> </host> granularity --- memory bandwidth granularity min --- minimum memory bandwidth allowed maxAllocs --- maximum concurrent memory bandwidth allocation allowed. --------------------------------------------------------------------------------------------- For domain XML, new format as below example <domain type='kvm' id='2'> ...... <cputune> ...... <shares>1024</shares> <memorytune vcpus='0-1'> <node id='0' bandwidth='20'/> </memorytune> </cputune> ...... </domain> id --- node where memory bandwidth allocation will happen bandwidth --- bandwidth allocated in percentage ---------------------------------------------------------------------------------------------- With this extension of the virresctrl, the overall working follow of CAT and MBA is described by below picture. XML parser will aggregate MBA and CAT configuration and represents it in one virresctrl object. The methods of virresctrl class will manipulate resctrl interface to allocate corresponding resources. <memorytune cpus='0-3'> +---------+ | <cachetune vcpus='0-3'> XML | + parser +-----------+ | | +------------------------------+ | | internal object +------v--------------+ virResctrlAlloc | backing object | +------+--------------+ | | +------------------------------+ | +--v-------+ | | | schemata | /sys/fs/resctrl | tasks | | . | | . | | | +----------+ --------------------------------------------------------------------- previous RFC versions and discussion can be found at v2: https://www.redhat.com/archives/libvir-list/2018-June/msg01268.html v1: https://www.redhat.com/archives/libvir-list/2018-May/msg02101.html Changelog: RFC_v2->this: John's comment: 1. use name MemBW to replace MB for a more clear description. 2. split rename patch and put refactor function part separately. 3. split virResctrlInfoMemMB and virResctrlAllocMemBW to different patches. 4. add docs/schemas/*.rng for XML related patches. 5. some cleanup for coding conventions. RFC_ v1->RFC_v2: Jano's comment: 1. put renaming parts into separated patches. 2. set the initial return value as -1. 3. using full name in structure definition. 4. do not use VIR_CACHE_TYPE_LAST for memory bandwidth allocation formatting. Pavel's comment: 1. add host capabilities XML for memory bandwidth allocation. 2. do not mix use cachetune section in XML for memory bandwidth allocation in domain XML. define a dedicated one for memory bandwidth allocation. Bing Niu (9): util: Rename some functions of virresctrl util: Refactor virResctrlGetInfo in virresctrl util: Refactor virResctrlAllocFormat of virresctrl util: Add MBA capability information query to resctrl util: Add MBA allocation to virresctrl conf: Rename cachetune to restune conf: Refactor virDomainCachetuneDefParse conf: Introduce cputune/memorytune to support memory bandwidth allocation conf: Add memory bandwidth allocation capability of host docs/formatdomain.html.in | 35 ++ docs/schemas/capability.rng | 33 ++ docs/schemas/domaincommon.rng | 17 + src/conf/capabilities.c | 108 ++++ src/conf/capabilities.h | 11 + src/conf/domain_conf.c | 408 ++++++++++++--- src/conf/domain_conf.h | 10 +- src/libvirt_private.syms | 4 +- src/qemu/qemu_domain.c | 2 +- src/qemu/qemu_process.c | 18 +- src/util/virresctrl.c | 574 +++++++++++++++++++-- src/util/virresctrl.h | 54 +- .../memorytune-colliding-allocs.xml | 30 ++ .../memorytune-colliding-cachetune.xml | 32 ++ tests/genericxml2xmlindata/memorytune.xml | 33 ++ tests/genericxml2xmltest.c | 5 + .../linux-resctrl/resctrl/info/MB/bandwidth_gran | 1 + .../linux-resctrl/resctrl/info/MB/min_bandwidth | 1 + .../linux-resctrl/resctrl/info/MB/num_closids | 1 + tests/vircaps2xmldata/vircaps-x86_64-resctrl.xml | 8 + tests/virresctrldata/resctrl.schemata | 1 + 21 files changed, 1233 insertions(+), 153 deletions(-) create mode 100644 tests/genericxml2xmlindata/memorytune-colliding-allocs.xml create mode 100644 tests/genericxml2xmlindata/memorytune-colliding-cachetune.xml create mode 100644 tests/genericxml2xmlindata/memorytune.xml create mode 100644 tests/vircaps2xmldata/linux-resctrl/resctrl/info/MB/bandwidth_gran create mode 100644 tests/vircaps2xmldata/linux-resctrl/resctrl/info/MB/min_bandwidth create mode 100644 tests/vircaps2xmldata/linux-resctrl/resctrl/info/MB/num_closids -- 2.7.4

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[libvirt] [PATCH v2] util: clang is failing to compile due to unused variables.
by Julio Faracco 28 Jul '18

28 Jul '18

After some recent patches, clang is throwing some errors related to unused variables. This is not happening when we use GCC with -Werror enabled. Only clang reports this warning. make[3]: Entering directory '/home/julio/Desktop/virt/libvirt/src' CC util/libvirt_util_la-virscsivhost.lo CC util/libvirt_util_la-virusb.lo CC util/libvirt_util_la-virmdev.lo util/virmdev.c:373:36: error: unused variable 'ret' [-Werror,-Wunused-variable] VIR_AUTOPTR(virMediatedDevice) ret = virMediatedDeviceListSteal(list, dev); ^ 1 error generated. Makefile:11579: recipe for target 'util/libvirt_util_la-virmdev.lo' failed make[3]: *** [util/libvirt_util_la-virmdev.lo] Error 1 make[3]: *** Waiting for unfinished jobs.... util/virscsivhost.c:112:37: error: unused variable 'tmp' [-Werror,-Wunused-variable] VIR_AUTOPTR(virSCSIVHostDevice) tmp = virSCSIVHostDeviceListSteal(list, dev); ^ 1 error generated. Makefile:11411: recipe for target 'util/libvirt_util_la-virscsivhost.lo' failed make[3]: *** [util/libvirt_util_la-virscsivhost.lo] Error 1 util/virusb.c:511:31: error: unused variable 'ret' [-Werror,-Wunused-variable] VIR_AUTOPTR(virUSBDevice) ret = virUSBDeviceListSteal(list, dev); Signed-off-by: Julio Faracco <jcfaracco(a)gmail.com> --- src/util/virmdev.c | 2 +- src/util/virscsivhost.c | 2 +- src/util/virusb.c | 2 +- 3 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/util/virmdev.c b/src/util/virmdev.c index 4050835cc1..4492fd673e 100644 --- a/src/util/virmdev.c +++ b/src/util/virmdev.c @@ -370,7 +370,7 @@ void virMediatedDeviceListDel(virMediatedDeviceListPtr list, virMediatedDevicePtr dev) { - VIR_AUTOPTR(virMediatedDevice) ret = virMediatedDeviceListSteal(list, dev); + virMediatedDeviceListSteal(list, dev); } diff --git a/src/util/virscsivhost.c b/src/util/virscsivhost.c index 280d0dc2fd..1a069e67ff 100644 --- a/src/util/virscsivhost.c +++ b/src/util/virscsivhost.c @@ -109,7 +109,7 @@ void virSCSIVHostDeviceListDel(virSCSIVHostDeviceListPtr list, virSCSIVHostDevicePtr dev) { - VIR_AUTOPTR(virSCSIVHostDevice) tmp = virSCSIVHostDeviceListSteal(list, dev); + virSCSIVHostDeviceListSteal(list, dev); } diff --git a/src/util/virusb.c b/src/util/virusb.c index 609d54836f..d14b7623cc 100644 --- a/src/util/virusb.c +++ b/src/util/virusb.c @@ -508,7 +508,7 @@ void virUSBDeviceListDel(virUSBDeviceListPtr list, virUSBDevicePtr dev) { - VIR_AUTOPTR(virUSBDevice) ret = virUSBDeviceListSteal(list, dev); + virUSBDeviceListSteal(list, dev); } virUSBDevicePtr -- 2.17.1

2 1

[libvirt] [PATCH] util: clang is failing due to unused variables.
by Julio Faracco 27 Jul '18

27 Jul '18

After some recent patches, clang is throwing some errors related to unused variables. This is not happening when we use GCC with -Werror enabled. Only clang reports this warning. make[3]: Entering directory '/home/julio/Desktop/virt/libvirt/src' CC util/libvirt_util_la-virscsivhost.lo CC util/libvirt_util_la-virusb.lo CC util/libvirt_util_la-virmdev.lo util/virmdev.c:373:36: error: unused variable 'ret' [-Werror,-Wunused-variable] VIR_AUTOPTR(virMediatedDevice) ret = virMediatedDeviceListSteal(list, dev); ^ 1 error generated. Makefile:11579: recipe for target 'util/libvirt_util_la-virmdev.lo' failed make[3]: *** [util/libvirt_util_la-virmdev.lo] Error 1 make[3]: *** Waiting for unfinished jobs.... util/virscsivhost.c:112:37: error: unused variable 'tmp' [-Werror,-Wunused-variable] VIR_AUTOPTR(virSCSIVHostDevice) tmp = virSCSIVHostDeviceListSteal(list, dev); ^ 1 error generated. Makefile:11411: recipe for target 'util/libvirt_util_la-virscsivhost.lo' failed make[3]: *** [util/libvirt_util_la-virscsivhost.lo] Error 1 util/virusb.c:511:31: error: unused variable 'ret' [-Werror,-Wunused-variable] VIR_AUTOPTR(virUSBDevice) ret = virUSBDeviceListSteal(list, dev); Signed-off-by: Julio Faracco <jcfaracco(a)gmail.com> --- src/util/virmdev.c | 3 ++- src/util/virscsivhost.c | 3 ++- src/util/virusb.c | 3 ++- 3 files changed, 6 insertions(+), 3 deletions(-) diff --git a/src/util/virmdev.c b/src/util/virmdev.c index 4050835cc1..63df4e40d8 100644 --- a/src/util/virmdev.c +++ b/src/util/virmdev.c @@ -370,7 +370,8 @@ void virMediatedDeviceListDel(virMediatedDeviceListPtr list, virMediatedDevicePtr dev) { - VIR_AUTOPTR(virMediatedDevice) ret = virMediatedDeviceListSteal(list, dev); + VIR_AUTOPTR(virMediatedDevice) ret ATTRIBUTE_UNUSED + = virMediatedDeviceListSteal(list, dev); } diff --git a/src/util/virscsivhost.c b/src/util/virscsivhost.c index 280d0dc2fd..e07cd46ba9 100644 --- a/src/util/virscsivhost.c +++ b/src/util/virscsivhost.c @@ -109,7 +109,8 @@ void virSCSIVHostDeviceListDel(virSCSIVHostDeviceListPtr list, virSCSIVHostDevicePtr dev) { - VIR_AUTOPTR(virSCSIVHostDevice) tmp = virSCSIVHostDeviceListSteal(list, dev); + VIR_AUTOPTR(virSCSIVHostDevice) tmp ATTRIBUTE_UNUSED + = virSCSIVHostDeviceListSteal(list, dev); } diff --git a/src/util/virusb.c b/src/util/virusb.c index 609d54836f..73a1041097 100644 --- a/src/util/virusb.c +++ b/src/util/virusb.c @@ -508,7 +508,8 @@ void virUSBDeviceListDel(virUSBDeviceListPtr list, virUSBDevicePtr dev) { - VIR_AUTOPTR(virUSBDevice) ret = virUSBDeviceListSteal(list, dev); + VIR_AUTOPTR(virUSBDevice) ret ATTRIBUTE_UNUSED + = virUSBDeviceListSteal(list, dev); } virUSBDevicePtr -- 2.17.1

3 3

[libvirt] [PATCH] audit: Share virtType fallback logic
by Cole Robinson 27 Jul '18

27 Jul '18

Signed-off-by: Cole Robinson <crobinso(a)redhat.com> --- src/conf/domain_audit.c | 91 +++++++++++++---------------------------- 1 file changed, 28 insertions(+), 63 deletions(-) diff --git a/src/conf/domain_audit.c b/src/conf/domain_audit.c index d9be638f05..fc13338d64 100644 --- a/src/conf/domain_audit.c +++ b/src/conf/domain_audit.c @@ -68,6 +68,21 @@ virDomainAuditGetRdev(const char *path ATTRIBUTE_UNUSED) #endif +static const char * +virDomainAuditGetVirtType(virDomainDefPtr def) +{ + const char *virt; + + if (!(virt = virDomainVirtTypeToString(def->virtType))) { + VIR_WARN("Unexpected virt type %d while encoding audit message", + def->virtType); + virt = "?"; + } + + return virt; +} + + static void virDomainAuditGenericDev(virDomainObjPtr vm, const char *type, @@ -82,7 +97,7 @@ virDomainAuditGenericDev(virDomainObjPtr vm, char *vmname = NULL; char *oldsrc = NULL; char *newsrc = NULL; - const char *virt; + const char *virt = virDomainAuditGetVirtType(vm->def); /* if both new and old source aren't provided don't log anything */ if (!newsrcpath && !oldsrcpath) @@ -99,12 +114,6 @@ virDomainAuditGenericDev(virDomainObjPtr vm, if (!(vmname = virAuditEncode("vm", vm->def->name))) goto no_memory; - if (!(virt = virDomainVirtTypeToString(vm->def->virtType))) { - VIR_WARN("Unexpected virt type %d while encoding audit message", - vm->def->virtType); - virt = "?"; - } - if (!(newsrc = virAuditEncode(newdev, VIR_AUDIT_STR(newsrcpath)))) goto no_memory; @@ -312,7 +321,7 @@ virDomainAuditNetDevice(virDomainDefPtr vmDef, virDomainNetDefPtr netDef, char *vmname; char *dev_name = NULL; char *rdev; - const char *virt; + const char *virt = virDomainAuditGetVirtType(vmDef); virUUIDFormat(vmDef->uuid, uuidstr); virMacAddrFormat(&netDef->mac, macstr); @@ -324,11 +333,6 @@ virDomainAuditNetDevice(virDomainDefPtr vmDef, virDomainNetDefPtr netDef, goto cleanup; } - if (!(virt = virDomainVirtTypeToString(vmDef->virtType))) { - VIR_WARN("Unexpected virt type %d while encoding audit message", vmDef->virtType); - virt = "?"; - } - VIR_AUDIT(VIR_AUDIT_RECORD_RESOURCE, success, "virt=%s resrc=net reason=open %s uuid=%s net=%s %s rdev=%s", virt, vmname, uuidstr, macstr, dev_name, VIR_AUDIT_STR(rdev)); @@ -356,7 +360,8 @@ virDomainAuditHostdev(virDomainObjPtr vm, virDomainHostdevDefPtr hostdev, char *vmname; char *address = NULL; char *device = NULL; - const char *virt; + const char *virt = virDomainAuditGetVirtType(vm->def); + virDomainHostdevSubsysUSBPtr usbsrc = &hostdev->source.subsys.u.usb; virDomainHostdevSubsysPCIPtr pcisrc = &hostdev->source.subsys.u.pci; virDomainHostdevSubsysSCSIPtr scsisrc = &hostdev->source.subsys.u.scsi; @@ -369,11 +374,6 @@ virDomainAuditHostdev(virDomainObjPtr vm, virDomainHostdevDefPtr hostdev, return; } - if (!(virt = virDomainVirtTypeToString(vm->def->virtType))) { - VIR_WARN("Unexpected virt type %d while encoding audit message", vm->def->virtType); - virt = "?"; - } - switch ((virDomainHostdevMode) hostdev->mode) { case VIR_DOMAIN_HOSTDEV_MODE_SUBSYS: switch ((virDomainHostdevSubsysType) hostdev->source.subsys.type) { @@ -509,7 +509,7 @@ virDomainAuditRedirdev(virDomainObjPtr vm, virDomainRedirdevDefPtr redirdev, char *vmname; char *address = NULL; char *device = NULL; - const char *virt; + const char *virt = virDomainAuditGetVirtType(vm->def); virUUIDFormat(vm->def->uuid, uuidstr); if (!(vmname = virAuditEncode("vm", vm->def->name))) { @@ -517,11 +517,6 @@ virDomainAuditRedirdev(virDomainObjPtr vm, virDomainRedirdevDefPtr redirdev, return; } - if (!(virt = virDomainVirtTypeToString(vm->def->virtType))) { - VIR_WARN("Unexpected virt type %d while encoding audit message", vm->def->virtType); - virt = "?"; - } - switch (redirdev->bus) { case VIR_DOMAIN_REDIRDEV_BUS_USB: if (VIR_STRDUP_QUIET(address, "USB redirdev") < 0) { @@ -571,7 +566,7 @@ virDomainAuditTPM(virDomainObjPtr vm, virDomainTPMDefPtr tpm, char *vmname; char *path = NULL; char *device = NULL; - const char *virt; + const char *virt = virDomainAuditGetVirtType(vm->def); virUUIDFormat(vm->def->uuid, uuidstr); if (!(vmname = virAuditEncode("vm", vm->def->name))) { @@ -579,11 +574,6 @@ virDomainAuditTPM(virDomainObjPtr vm, virDomainTPMDefPtr tpm, return; } - if (!(virt = virDomainVirtTypeToString(vm->def->virtType))) { - VIR_WARN("Unexpected virt type %d while encoding audit message", vm->def->virtType); - virt = "?"; - } - switch (tpm->type) { case VIR_DOMAIN_TPM_TYPE_PASSTHROUGH: path = tpm->data.passthrough.source.data.file.path; @@ -639,7 +629,7 @@ virDomainAuditCgroup(virDomainObjPtr vm, virCgroupPtr cgroup, char *vmname; char *controller = NULL; char *detail; - const char *virt; + const char *virt = virDomainAuditGetVirtType(vm->def); virUUIDFormat(vm->def->uuid, uuidstr); if (!(vmname = virAuditEncode("vm", vm->def->name))) { @@ -647,11 +637,6 @@ virDomainAuditCgroup(virDomainObjPtr vm, virCgroupPtr cgroup, return; } - if (!(virt = virDomainVirtTypeToString(vm->def->virtType))) { - VIR_WARN("Unexpected virt type %d while encoding audit message", vm->def->virtType); - virt = "?"; - } - ignore_value(virCgroupPathOfController(cgroup, VIR_CGROUP_CONTROLLER_DEVICES, NULL, &controller)); @@ -757,7 +742,7 @@ virDomainAuditResource(virDomainObjPtr vm, const char *resource, { char uuidstr[VIR_UUID_STRING_BUFLEN]; char *vmname; - const char *virt; + const char *virt = virDomainAuditGetVirtType(vm->def); virUUIDFormat(vm->def->uuid, uuidstr); if (!(vmname = virAuditEncode("vm", vm->def->name))) { @@ -765,11 +750,6 @@ virDomainAuditResource(virDomainObjPtr vm, const char *resource, return; } - if (!(virt = virDomainVirtTypeToString(vm->def->virtType))) { - VIR_WARN("Unexpected virt type %d while encoding audit message", vm->def->virtType); - virt = "?"; - } - VIR_AUDIT(VIR_AUDIT_RECORD_RESOURCE, success, "virt=%s resrc=%s reason=%s %s uuid=%s old-%s=%lld new-%s=%lld", virt, resource, reason, vmname, uuidstr, @@ -809,7 +789,7 @@ virDomainAuditLifecycle(virDomainObjPtr vm, const char *op, { char uuidstr[VIR_UUID_STRING_BUFLEN]; char *vmname; - const char *virt; + const char *virt = virDomainAuditGetVirtType(vm->def); virUUIDFormat(vm->def->uuid, uuidstr); @@ -818,11 +798,6 @@ virDomainAuditLifecycle(virDomainObjPtr vm, const char *op, return; } - if (!(virt = virDomainVirtTypeToString(vm->def->virtType))) { - VIR_WARN("Unexpected virt type %d while encoding audit message", vm->def->virtType); - virt = "?"; - } - VIR_AUDIT(VIR_AUDIT_RECORD_MACHINE_CONTROL, success, "virt=%s op=%s reason=%s %s uuid=%s vm-pid=%lld", virt, op, reason, vmname, uuidstr, (long long)vm->pid); @@ -909,7 +884,7 @@ virDomainAuditInit(virDomainObjPtr vm, { char uuidstr[VIR_UUID_STRING_BUFLEN]; char *vmname; - const char *virt; + const char *virt = virDomainAuditGetVirtType(vm->def); virUUIDFormat(vm->def->uuid, uuidstr); @@ -918,11 +893,6 @@ virDomainAuditInit(virDomainObjPtr vm, return; } - if (!(virt = virDomainVirtTypeToString(vm->def->virtType))) { - VIR_WARN("Unexpected virt type %d while encoding audit message", vm->def->virtType); - virt = "?"; - } - VIR_AUDIT(VIR_AUDIT_RECORD_MACHINE_CONTROL, true, "virt=%s op=init %s uuid=%s vm-pid=%lld init-pid=%lld pid-ns=%lld", virt, vmname, uuidstr, (long long)vm->pid, (long long)initpid, @@ -942,8 +912,8 @@ virDomainAuditSecurityLabel(virDomainObjPtr vm, bool success) { char uuidstr[VIR_UUID_STRING_BUFLEN]; char *vmname; - const char *virt; size_t i; + const char *virt = virDomainAuditGetVirtType(vm->def); virUUIDFormat(vm->def->uuid, uuidstr); if (!(vmname = virAuditEncode("vm", vm->def->name))) { @@ -951,11 +921,6 @@ virDomainAuditSecurityLabel(virDomainObjPtr vm, bool success) return; } - if (!(virt = virDomainVirtTypeToString(vm->def->virtType))) { - VIR_WARN("Unexpected virt type %d while encoding audit message", vm->def->virtType); - virt = "?"; - } - for (i = 0; i < vm->def->nseclabels; i++) { VIR_AUDIT(VIR_AUDIT_RECORD_MACHINE_ID, success, "virt=%s %s uuid=%s vm-ctx=%s img-ctx=%s model=%s", @@ -976,7 +941,7 @@ virDomainAuditShmem(virDomainObjPtr vm, char uuidstr[VIR_UUID_STRING_BUFLEN]; char *vmname = virAuditEncode("vm", vm->def->name); const char *srcpath = virDomainChrSourceDefGetPath(&def->server.chr); - const char *virt = virDomainVirtTypeToString(vm->def->virtType); + const char *virt = virDomainAuditGetVirtType(vm->def); char *shmpath = NULL; virUUIDFormat(vm->def->uuid, uuidstr); @@ -1018,7 +983,7 @@ virDomainAuditInput(virDomainObjPtr vm, { char uuidstr[VIR_UUID_STRING_BUFLEN]; char *vmname; - const char *virt = virDomainVirtTypeToString(vm->def->virtType); + const char *virt = virDomainAuditGetVirtType(vm->def); virUUIDFormat(vm->def->uuid, uuidstr); -- 2.17.1

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[libvirt] [PATCH] virpci: Drop unused @ret in virPCIDeviceListDel
by Michal Privoznik 27 Jul '18

27 Jul '18

So after 00dc991ca16730 the function is one line long and the line is declaring a variable which is never used in fact. Replace it with actual free() call instead of autofree. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- Pushed under build breaker rule as this is causing clang to complain. Huh, who uses that? :-P src/util/virpci.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/util/virpci.c b/src/util/virpci.c index 634df8d35f..6cf2acf2d1 100644 --- a/src/util/virpci.c +++ b/src/util/virpci.c @@ -2003,7 +2003,7 @@ void virPCIDeviceListDel(virPCIDeviceListPtr list, virPCIDevicePtr dev) { - VIR_AUTOPTR(virPCIDevice) ret = virPCIDeviceListSteal(list, dev); + virPCIDeviceFree(virPCIDeviceListSteal(list, dev)); } int -- 2.16.4

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[libvirt] [PATCH v2 00/41] use GNU C's cleanup attribute in src/util (batch II)
by Sukrit Bhatnagar 27 Jul '18

27 Jul '18

This second series of patches also modifies a few files in src/util to use VIR_AUTOFREE and VIR_AUTOPTR for automatic freeing of memory and get rid of some VIR_FREE macro invocations and *Free function calls. The argument type of virCgroupFree is changed from virCgroupPtr * to virCgroupPtr and that of virUSBDeviceListAdd is changed to take a double pointer to virUSBDevice. Sukrit Bhatnagar (41): util: error: define cleanup function using VIR_DEFINE_AUTOPTR_FUNC util: buffer: typedef for struct _virBufferEscapePair util: buffer: define cleanup function using VIR_DEFINE_AUTOPTR_FUNC util: buffer: use VIR_AUTOFREE instead of VIR_FREE for scalar types util: buffer: use VIR_AUTOPTR for aggregate types util: hash: define cleanup function using VIR_DEFINE_AUTOPTR_FUNC util: cgroup: modify virCgroupFree to take virCgroupPtr util: cgroup: define cleanup function using VIR_DEFINE_AUTOPTR_FUNC util: cgroup: use VIR_AUTOFREE instead of VIR_FREE for scalar types util: cgroup: use VIR_AUTOPTR for aggregate types util: mdev: define cleanup function using VIR_DEFINE_AUTOPTR_FUNC util: mdev: use VIR_AUTOFREE instead of VIR_FREE for scalar types util: mdev: use VIR_AUTOPTR for aggregate types util: firewall: define cleanup function using VIR_DEFINE_AUTOPTR_FUNC util: firewall: use VIR_AUTOFREE instead of VIR_FREE for scalar types util: firewall: use VIR_AUTOPTR for aggregate types util: hook: use VIR_AUTOFREE instead of VIR_FREE for scalar types util: hook: use VIR_AUTOPTR for aggregate types util: pci: define cleanup function using VIR_DEFINE_AUTOPTR_FUNC util: pci: use VIR_AUTOFREE instead of VIR_FREE for scalar types util: pci: use VIR_AUTOPTR for aggregate types util: usb: modify virUSBDeviceListAdd to take double pointer util: usb: define cleanup function using VIR_DEFINE_AUTOPTR_FUNC util: usb: use VIR_AUTOFREE instead of VIR_FREE for scalar types util: usb: use VIR_AUTOPTR for aggregate types util: scsi: define cleanup function using VIR_DEFINE_AUTOPTR_FUNC util: scsi: use VIR_AUTOFREE instead of VIR_FREE for scalar types util: scsi: use VIR_AUTOPTR for aggregate types util: scsivhost: define cleanup function using VIR_DEFINE_AUTOPTR_FUNC util: scsivhost: use VIR_AUTOPTR for aggregate types util: netdevvlan: define cleanup function using VIR_DEFINE_AUTOPTR_FUNC util: hostdev: use VIR_AUTOFREE instead of VIR_FREE for scalar types util: hostdev: use VIR_AUTOPTR for aggregate types util: hostmem: use VIR_AUTOFREE instead of VIR_FREE for scalar types util: iptables: use VIR_AUTOFREE instead of VIR_FREE for scalar types util: iscsi: use VIR_AUTOFREE instead of VIR_FREE for scalar types util: iscsi: use VIR_AUTOPTR for aggregate types util: kmod: use VIR_AUTOFREE instead of VIR_FREE for scalar types util: kmod: use VIR_AUTOPTR for aggregate types util: lease: use VIR_AUTOFREE instead of VIR_FREE for scalar types util: lease: use VIR_AUTOPTR for aggregate types src/libvirt-lxc.c | 4 +- src/lxc/lxc_cgroup.c | 4 +- src/lxc/lxc_container.c | 2 +- src/lxc/lxc_controller.c | 2 +- src/lxc/lxc_domain.c | 2 +- src/lxc/lxc_process.c | 10 +- src/qemu/qemu_cgroup.c | 16 +- src/qemu/qemu_domain.c | 2 +- src/qemu/qemu_driver.c | 34 +-- src/qemu/qemu_process.c | 2 +- src/util/virbuffer.c | 38 ++- src/util/virbuffer.h | 9 +- src/util/vircgroup.c | 746 +++++++++++++++++------------------------------ src/util/vircgroup.h | 11 +- src/util/vircgrouppriv.h | 2 +- src/util/virerror.c | 1 - src/util/virerror.h | 3 + src/util/virfirewall.c | 53 ++-- src/util/virfirewall.h | 3 + src/util/virhash.c | 1 - src/util/virhash.h | 4 + src/util/virhook.c | 26 +- src/util/virhostdev.c | 168 ++++------- src/util/virhostmem.c | 57 ++-- src/util/viriptables.c | 52 ++-- src/util/viriscsi.c | 89 ++---- src/util/virkmod.c | 38 +-- src/util/virlease.c | 82 ++---- src/util/virmdev.c | 84 ++---- src/util/virmdev.h | 4 + src/util/virnetdevvlan.c | 1 - src/util/virnetdevvlan.h | 4 + src/util/virpci.c | 352 ++++++++-------------- src/util/virpci.h | 7 + src/util/virscsi.c | 63 ++-- src/util/virscsi.h | 3 + src/util/virscsivhost.c | 19 +- src/util/virscsivhost.h | 3 + src/util/virusb.c | 42 ++- src/util/virusb.h | 5 +- tests/vircgrouptest.c | 42 +-- tests/virusbtest.c | 4 +- 42 files changed, 800 insertions(+), 1294 deletions(-) -- 1.8.3.1

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[libvirt] [PATCH 0/3] lxc: Simplify virLXCProcessStart a tiny bit
by Michal Privoznik 27 Jul '18

27 Jul '18

These are basically follow up patches as suggested by Erik in his review: https://www.redhat.com/archives/libvir-list/2018-July/msg01767.html Michal Prívozník (3): util: Rework virStringListAdd lxc: Turn @veths into a string list in virLXCProcessStart lxc: Use VIR_AUTOPTR for @veths in virLXCProcessStart src/lxc/lxc_process.c | 25 +++++++++---------------- src/util/virmacmap.c | 8 ++------ src/util/virstring.c | 34 ++++++++++++++-------------------- src/util/virstring.h | 4 ++-- tests/virstringtest.c | 6 +----- 5 files changed, 28 insertions(+), 49 deletions(-) -- 2.16.4

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