April 2017 - Devel - libvirt List Archives

[libvirt] [PATCH 0/5] qemu: Couple of namespace fixes
by Michal Privoznik 03 May '17

03 May '17

It was brought to my attention on IRC by Cedric that there's a bug in our namespace code. Namely, if a disk has say /dev/shm/blah source. For more detailed description see the first patch. The rest is just subsequent fixes. Michal Privoznik (5): qemuDomainBuildNamespace: Move /dev/* mountpoints later qemuDomainCreateDeviceRecursive: pass a structure instead of bare path qemuDomainCreateDeviceRecursive: Don't try to create devices under preserved mount points qemuDomainAttachDeviceMknodRecursive: Don't try to create devices under preserved mount points qemuDomainDetachDeviceUnlink: Don't unlink files we haven't created src/qemu/qemu_domain.c | 373 ++++++++++++++++++++++++++++++++++++------------- 1 file changed, 275 insertions(+), 98 deletions(-) -- 2.10.2

2 10

[libvirt] [PATCH v3 0/8] Rework sysfs handling
by Martin Kletzander 03 May '17

03 May '17

Basically all of these were ACKed, however I was on vacation and in the meatime there were changes. The virFileMock cannot be named 'mock' because it fails the 'noinline' test, but it doesn't actually mock anything, so I just renamed it. There was decision in another series to use the same naming for cache types and cache allocation scopes, so the types now are 'both', 'code', and 'data'. There was still no consensus reached with regards to the naming of that attribute (is it 'type' or 'scope'). The patches are fine otherwise. This version keeps it at 'type', we can change it before release or I can change it before pushing. All changes Erik wanted me to incorporate are there, except those that were optional and I felt like keeping the code as-is was better. Or those that I missed or forgot about (hopefully none). Martin Kletzander (8): tests: Add virfilewrapper -- the new super "mock" util: Remove virsysfs and instead enhance virFileReadValue* functions tests: Test vircaps2xmldata XMLs in virschematest tests: Add missing cache data for vircaps2xmltest Add host cache information in capabilities Init host cache info in drivers tests: Add support for more complicated hierarchies in vircaps2xmltest tests: Add resctrl test for vircaps2xmltest cfg.mk | 4 +- docs/schemas/capability.rng | 34 +++ src/Makefile.am | 2 - src/conf/capabilities.c | 205 ++++++++++++++- src/conf/capabilities.h | 29 +++ src/libvirt_private.syms | 17 +- src/lxc/lxc_conf.c | 3 + src/openvz/openvz_conf.c | 3 + src/phyp/phyp_driver.c | 3 + src/qemu/qemu_capabilities.c | 3 + src/uml/uml_conf.c | 3 + src/util/virfile.c | 204 ++++++++++++--- src/util/virfile.h | 14 +- src/util/virhostcpu.c | 39 +-- src/util/virsysfs.c | 231 ----------------- src/util/virsysfs.h | 70 ----- src/vbox/vbox_common.c | 3 + src/vmware/vmware_conf.c | 3 + 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create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu10/cache/index3/shared_cpu_list create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu10/cache/index3/shared_cpu_map create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu10/cache/index3/size create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu10/cache/index3/type create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu10/online create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu10/topology/core_id create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu10/topology/core_siblings create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu10/topology/core_siblings_list create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu10/topology/physical_package_id create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu10/topology/thread_siblings create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu10/topology/thread_siblings_list create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu11/cache/index0/id create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu11/cache/index0/level copy tests/vircaps2xmldata/{linux-caches/cpu/cpu0/cache/index0/shared_cpu_map => linux-resctrl/system/cpu/cpu11/cache/index0/shared_cpu_list} (100%) create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu11/cache/index0/shared_cpu_map create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu11/cache/index0/size create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu11/cache/index0/type create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu11/cache/index1/id create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu11/cache/index1/level copy tests/vircaps2xmldata/{linux-caches/cpu/cpu0/cache/index0/shared_cpu_map => linux-resctrl/system/cpu/cpu11/cache/index1/shared_cpu_list} (100%) create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu11/cache/index1/shared_cpu_map create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu11/cache/index1/size create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu11/cache/index1/type create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu11/cache/index2/id create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu11/cache/index2/level copy tests/vircaps2xmldata/{linux-caches/cpu/cpu0/cache/index0/shared_cpu_map => linux-resctrl/system/cpu/cpu11/cache/index2/shared_cpu_list} (100%) create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu11/cache/index2/shared_cpu_map create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu11/cache/index2/size create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu11/cache/index2/type create mode 100644 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tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu11/topology/physical_package_id create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu11/topology/thread_siblings copy tests/vircaps2xmldata/{linux-caches/cpu/cpu0/cache/index0/shared_cpu_map => linux-resctrl/system/cpu/cpu11/topology/thread_siblings_list} (100%) create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu2/cache/index0/id create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu2/cache/index0/level create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu2/cache/index0/shared_cpu_list create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu2/cache/index0/shared_cpu_map create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu2/cache/index0/size create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu2/cache/index0/type create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu2/cache/index1/id create mode 100644 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tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu7/cache/index2/type create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu7/cache/index3/id create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu7/cache/index3/level create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu7/cache/index3/shared_cpu_list create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu7/cache/index3/shared_cpu_map create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu7/cache/index3/size create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu7/cache/index3/type create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu7/online create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu7/topology/core_id create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu7/topology/core_siblings create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu7/topology/core_siblings_list create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu7/topology/physical_package_id create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu7/topology/thread_siblings create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu7/topology/thread_siblings_list create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index0/id create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index0/level create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index0/shared_cpu_list create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index0/shared_cpu_map create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index0/size create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index0/type create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index1/id create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index1/level create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index1/shared_cpu_list create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index1/shared_cpu_map create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index1/size create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index1/type create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index2/id create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index2/level create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index2/shared_cpu_list create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index2/shared_cpu_map create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index2/size create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index2/type create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index3/id create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index3/level create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index3/shared_cpu_list create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index3/shared_cpu_map create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index3/size create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/cache/index3/type create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/online create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/topology/core_id create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/topology/core_siblings create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/topology/core_siblings_list create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/topology/physical_package_id create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/topology/thread_siblings create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu8/topology/thread_siblings_list copy tests/vircaps2xmldata/{linux-caches/cpu/cpu0/cache/index0/shared_cpu_map => linux-resctrl/system/cpu/cpu9/cache/index0/id} (100%) create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu9/cache/index0/level create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu9/cache/index0/shared_cpu_list create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu9/cache/index0/shared_cpu_map create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu9/cache/index0/size create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu9/cache/index0/type copy tests/vircaps2xmldata/{linux-caches/cpu/cpu0/cache/index0/shared_cpu_map => linux-resctrl/system/cpu/cpu9/cache/index1/id} (100%) create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu9/cache/index1/level create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu9/cache/index1/shared_cpu_list create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu9/cache/index1/shared_cpu_map create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu9/cache/index1/size create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu9/cache/index1/type copy tests/vircaps2xmldata/{linux-caches/cpu/cpu0/cache/index0/shared_cpu_map => linux-resctrl/system/cpu/cpu9/cache/index2/id} (100%) create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu9/cache/index2/level create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu9/cache/index2/shared_cpu_list create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/cpu/cpu9/cache/index2/shared_cpu_map create mode 100644 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mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node0/cpulist create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node0/cpumap create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node0/distance create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node0/hugepages/hugepages-1048576kB/free_hugepages create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node0/hugepages/hugepages-1048576kB/nr_hugepages create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node0/hugepages/hugepages-1048576kB/surplus_hugepages create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node0/hugepages/hugepages-2048kB/free_hugepages create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node0/hugepages/hugepages-2048kB/nr_hugepages create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node0/hugepages/hugepages-2048kB/surplus_hugepages create mode 120000 tests/vircaps2xmldata/linux-resctrl/system/node/node1/cpu10 create mode 120000 tests/vircaps2xmldata/linux-resctrl/system/node/node1/cpu11 create mode 120000 tests/vircaps2xmldata/linux-resctrl/system/node/node1/cpu6 create mode 120000 tests/vircaps2xmldata/linux-resctrl/system/node/node1/cpu7 create mode 120000 tests/vircaps2xmldata/linux-resctrl/system/node/node1/cpu8 create mode 120000 tests/vircaps2xmldata/linux-resctrl/system/node/node1/cpu9 create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node1/cpulist create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node1/cpumap create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node1/distance create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node1/hugepages/hugepages-1048576kB/free_hugepages create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node1/hugepages/hugepages-1048576kB/nr_hugepages create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node1/hugepages/hugepages-1048576kB/surplus_hugepages create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node1/hugepages/hugepages-2048kB/free_hugepages create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node1/hugepages/hugepages-2048kB/nr_hugepages create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/node1/hugepages/hugepages-2048kB/surplus_hugepages create mode 100644 tests/vircaps2xmldata/linux-resctrl/system/node/online create mode 100644 tests/vircaps2xmldata/vircaps-x86_64-resctrl.xml create mode 100644 tests/virfilewrapper.c rename src/util/virsysfspriv.h => tests/virfilewrapper.h (69%) -- 2.12.2

4 18

[libvirt] [PATCH] qemu: Don't reset "events" migration capability
by Jiri Denemark 02 May '17

02 May '17

When creating v3.2.0-77-g8be3ccd04 commit, I completely forgot that one migration capability is very special. It's the "events" capability which tells QEMU to report "MIGRATION" events. Since libvirt always wants the events, it is enabled in qemuConnectMonitor and the rest of the code should not touch it. https://bugzilla.redhat.com/show_bug.cgi?id=1439841 https://bugzilla.redhat.com/show_bug.cgi?id=1441165 Messed-up-by: Jiri Denemark <jdenemar(a)redhat.com> Signed-off-by: Jiri Denemark <jdenemar(a)redhat.com> --- src/qemu/qemu_migration.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index b4507a3ae..30f98da1e 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -5919,6 +5919,11 @@ qemuMigrationReset(virQEMUDriverPtr driver, goto cleanup; for (cap = 0; cap < QEMU_MONITOR_MIGRATION_CAPS_LAST; cap++) { + /* "events" capability is set (when supported) in qemuConnectMonitor + * and should never be cleared */ + if (cap == QEMU_MONITOR_MIGRATION_CAPS_EVENTS) + continue; + if (qemuMigrationSetOption(driver, vm, cap, false, job) < 0) goto cleanup; } -- 2.12.2

2 1

[libvirt] [PATCH 0/2] Add support for some useful vim plugins
by Andrea Bolognani 02 May '17

02 May '17

libclang can be integrated into vim in pretty useful ways, notably to provide semantic syntax highlighting and code completion. This series enables basic support for both (through the color_coded and YouCompleteMe plugin respectively) by creating the required per-project configuration files automatically at configure time. Note that external libraries (eg. libxml2) are not being processed at the moment, but even with this basic configuration the plugins can be very useful. More sophisticated support can be worked in later on. Visual comparison: http://imgur.com/a/TBJsz Andrea Bolognani (2): Add color_coded support Add YouCompleteMe support .color_coded.in | 40 ++++++++++++++++++++++++++++++++++++++++ .gitignore | 2 ++ .ycm_extra_conf.py.in | 45 +++++++++++++++++++++++++++++++++++++++++++++ configure.ac | 2 ++ 4 files changed, 89 insertions(+) create mode 100644 .color_coded.in create mode 100644 .ycm_extra_conf.py.in -- 2.7.4

2 11

[libvirt] [PATCH RFC V2] RFC: Reimplement cache allocation for a VM
by Eli Qiao 02 May '17

02 May '17

This is a RFC patch for the reimplement of `support cache tune(CAT) in libvirt`[1]. This patch defines some structs to represent data struct in linux resctrl fs which will be used later to do cache allocation. The patch expose a private interface `virResctrlFreeSchemata`, which will be used to query the cache allocation on the host. Also added unit test cases to test this interface can works well. There are already patch sets[2] to address it, and functional works, but people doesn't like it cause it has global variable, and missing unit test case for new added capabilites, etc. Martin has proposed a test infra to do vircaps2xmltest, and I extened it on top of it to extend resctrl control[3], this is kinds of new desiged apart from [2], so I propose this RFC patch to do some rework on it. [1] https://www.redhat.com/archives/libvir-list/2017-January/msg00683.html [2] https://www.redhat.com/archives/libvir-list/2017-March/msg00181.html [3] https://www.redhat.com/archives/libvir-list/2017-April/msg00516.html --- include/libvirt/virterror.h | 1 + src/Makefile.am | 1 + src/libvirt_private.syms | 6 + src/util/virerror.c | 1 + src/util/virresctrl.c | 423 ++++++++++++++++++++++++++++++ src/util/virresctrl.h | 86 ++++++ tests/Makefile.am | 7 +- tests/virresctrldata/L3-free.schemata | 1 + tests/virresctrldata/L3CODE-free.schemata | 1 + tests/virresctrldata/L3DATA-free.schemata | 1 + tests/virresctrltest.c | 117 +++++++++ 11 files changed, 644 insertions(+), 1 deletion(-) create mode 100644 src/util/virresctrl.c create mode 100644 src/util/virresctrl.h create mode 100644 tests/virresctrldata/L3-free.schemata create mode 100644 tests/virresctrldata/L3CODE-free.schemata create mode 100644 tests/virresctrldata/L3DATA-free.schemata create mode 100644 tests/virresctrltest.c diff --git a/include/libvirt/virterror.h b/include/libvirt/virterror.h index 2efee8f..4bc0c74 100644 --- a/include/libvirt/virterror.h +++ b/include/libvirt/virterror.h @@ -132,6 +132,7 @@ typedef enum { VIR_FROM_PERF = 65, /* Error from perf */ VIR_FROM_LIBSSH = 66, /* Error from libssh connection transport */ + VIR_FROM_RESCTRL = 67, /* Error from resctrl */ # ifdef VIR_ENUM_SENTINELS VIR_ERR_DOMAIN_LAST diff --git a/src/Makefile.am b/src/Makefile.am index 60eba37..0ae2af5 100644 --- a/src/Makefile.am +++ b/src/Makefile.am @@ -165,6 +165,7 @@ UTIL_SOURCES = \ util/virprocess.c util/virprocess.h \ util/virqemu.c util/virqemu.h \ util/virrandom.h util/virrandom.c \ + util/virresctrl.h util/virresctrl.c \ util/virrotatingfile.h util/virrotatingfile.c \ util/virscsi.c util/virscsi.h \ util/virscsihost.c util/virscsihost.h \ diff --git a/src/libvirt_private.syms b/src/libvirt_private.syms index 9d7760d..b7225fe 100644 --- a/src/libvirt_private.syms +++ b/src/libvirt_private.syms @@ -2396,6 +2396,12 @@ virRandomGenerateWWN; virRandomInt; +# util/virresctrl.h +virResctrlFreeSchemata; +virResctrlGetFreeCache; +virResctrlTypeToString; + + # util/virrotatingfile.h virRotatingFileReaderConsume; virRotatingFileReaderFree; diff --git a/src/util/virerror.c b/src/util/virerror.c index ef17fb5..02fabcc 100644 --- a/src/util/virerror.c +++ b/src/util/virerror.c @@ -139,6 +139,7 @@ VIR_ENUM_IMPL(virErrorDomain, VIR_ERR_DOMAIN_LAST, "Perf", /* 65 */ "Libssh transport layer", + "Resource Control", ) diff --git a/src/util/virresctrl.c b/src/util/virresctrl.c new file mode 100644 index 0000000..778c2ec --- /dev/null +++ b/src/util/virresctrl.c @@ -0,0 +1,423 @@ +/* + * virresctrl.c: methods for managing resource control + * + * Copyright (C) 2017 Intel, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * <http://www.gnu.org/licenses/>. + * + * Authors: + * Eli Qiao <liyong.qiao(a)intel.com> + */ + +#include <config.h> +#include <fcntl.h> +#include <sys/file.h> +#include <sys/stat.h> +#include <sys/types.h> + +#include "virresctrl.h" +#include "virerror.h" +#include "virlog.h" +#include "viralloc.h" +#include "virstring.h" +#include "virfile.h" + +VIR_LOG_INIT("util.resctrl"); + +#define VIR_FROM_THIS VIR_FROM_RESCTRL +#define SYSFS_RESCTRL_PATH "/sys/fs/resctrl/" + +VIR_ENUM_IMPL(virResctrl, VIR_RESCTRL_TYPE_LAST, + "L3", + "L3CODE", + "L3DATA", + "L2") + +/** + * a virResctrlDomain represents a resource control group, it's a directory + * under /sys/fs/resctrl. + * eg: /sys/fs/resctrl/CG1 + * |-- cpus + * |-- schemata + * `-- tasks + * # cat schemata + * L3DATA:0=fffff;1=fffff + * L3CODE:0=fffff;1=fffff + * + * Besides, it can also represent the default resource control group of the + * host. + */ + +typedef struct _virResctrlGroup virResctrlGroup; +typedef virResctrlGroup *virResctrlGroupPtr; +struct _virResctrlGroup { + char *name; /* resource group name, eg: CG1. If it represent host's + default resource group name, should be a NULL pointer */ + size_t n_tasks; /* number of task assigned to the resource group */ + char **tasks; /* task list which contains task id eg: 77454 */ + + size_t n_schematas; /* number of schemata the resource group contains, + eg: 2 */ + virResctrlSchemataPtr *schematas; /* scheamta list */ +}; + +/* All resource control groups on this host, including default resource group */ +typedef struct _virResctrlDomain virResctrlDomain; +typedef virResctrlDomain *virResctrlDomainPtr; +struct _virResctrlDomain { + size_t n_groups; /* number of resource control group */ + virResctrlGroupPtr *groups; /* list of resource control group */ +}; + +void +virResctrlFreeSchemata(virResctrlSchemataPtr ptr) +{ + size_t i; + + if (!ptr) + return; + + for (i = 0; i < ptr->n_schemata_items; i++) + VIR_FREE(ptr->schemata_items[i]); +} + +static void +virResctrlFreeGroup(virResctrlGroupPtr ptr) +{ + size_t i; + + if (!ptr) + return; + + for (i = 0; i < ptr->n_tasks; i++) + VIR_FREE(ptr->tasks[i]); + + for (i = 0; i < ptr->n_schematas; i++) { + virResctrlFreeSchemata(ptr->schematas[i]); + VIR_FREE(ptr->schematas[i]); + } +} + +static void +virResctrlFreeDomain(virResctrlDomainPtr ptr) +{ + size_t i; + + if (!ptr) + return; + + for (i = 0; i < ptr->n_groups; i++) { + virResctrlFreeGroup(ptr->groups[i]); + VIR_FREE(ptr->groups[i]); + } +} + +static int +virResctrlCopySchemata(virResctrlSchemataPtr src, + virResctrlSchemataPtr *dst) +{ + size_t i; + virResctrlSchemataItemPtr schemataitem; + virResctrlSchemataPtr schemata; + + if (VIR_ALLOC(schemata) < 0) + return -1; + + schemata->type = src->type; + + for (i = 0; i < src->n_schemata_items; i++) { + if (VIR_ALLOC(schemataitem) < 0) + goto error; + + schemataitem->cache_id = src->schemata_items[i]->cache_id; + schemataitem->continuous_schemata = src->schemata_items[i]->continuous_schemata; + schemataitem->schemata = src->schemata_items[i]->schemata; + schemataitem->size = src->schemata_items[i]->size; + + if (VIR_APPEND_ELEMENT(schemata->schemata_items, + schemata->n_schemata_items, + schemataitem) < 0) + goto error; + } + + *dst = schemata; + + return 0; + + error: + virResctrlFreeSchemata(schemata); + return -1; +} + +static int +virResctrlGetSchemataString(virResctrlType type, + const char *name, + char **schemata) +{ + int rc = -1; + char *tmp = NULL; + char *end = NULL; + char *buf = NULL; + char *type_suffix = NULL; + + if (virFileReadValueString(&buf, + SYSFS_RESCTRL_PATH "%s/schemata", + name ? name : "") < 0) + return -1; + + if (virAsprintf(&type_suffix, + "%s:", + virResctrlTypeToString(type)) < 0) + goto cleanup; + + tmp = strstr(buf, type_suffix); + + if (!tmp) + goto cleanup; + + end = strchr(tmp, '\n'); + if (end != NULL) + *end = '\0'; + + if (VIR_STRDUP(*schemata, tmp) < 0) + goto cleanup; + + rc = 0; + + cleanup: + VIR_FREE(buf); + VIR_FREE(type_suffix); + return rc; +} + +static int +virResctrlLoadSchemata(const char* schemata_str, + virResctrlSchemataPtr schemata) +{ + VIR_DEBUG("%s, %p\n", schemata_str, schemata); + + int ret = -1; + char **lists = NULL; + char **sms = NULL; + char **sis = NULL; + size_t i; + virResctrlSchemataItemPtr si; + + /* parse L3:0=fffff;1=f */ + lists = virStringSplit(schemata_str, ":", 2); + + if ((!lists) || (!lists[1])) + goto cleanup; + + /* parse 0=fffff;1=f */ + sms = virStringSplit(lists[1], ";", 0); + if (!sms) + goto cleanup; + + for (i = 0; sms[i] != NULL; i++) { + /* parse 0=fffff */ + sis = virStringSplit(sms[i], "=", 2); + if (!sis) + goto cleanup; + + if (VIR_ALLOC(si) < 0) + goto cleanup; + + if (virStrToLong_ui(sis[0], NULL, 10, &si->cache_id) < 0) + goto cleanup; + + if (virStrToLong_ui(sis[1], NULL, 16, &si->continuous_schemata) < 0) + goto cleanup; + + si->schemata = si->continuous_schemata; + + if (VIR_APPEND_ELEMENT(schemata->schemata_items, + schemata->n_schemata_items, + si) < 0) + goto cleanup; + + } + + ret = 0; + + cleanup: + VIR_FREE(si); + virStringListFree(lists); + virStringListFree(sms); + virStringListFree(sis); + return ret; +} + +static int +virResctrlLoadGroup(const char *name, + virResctrlDomainPtr dom) +{ + VIR_DEBUG("%s, %p\n", name, dom); + + int ret = -1; + char *path = NULL; + char *schemata_str; + virResctrlType i; + int rv; + virResctrlGroupPtr grp; + virResctrlSchemataPtr schemata; + + if ((virAsprintf(&path, "%s/%s", SYSFS_RESCTRL_PATH, name)) < 0) + return -1; + + if (!virFileExists(path)) + goto cleanup; + + if (VIR_ALLOC(grp) < 0) + goto cleanup; + + if (VIR_STRDUP(grp->name, name) < 0) + goto cleanup; + + for (i = 0; i < VIR_RESCTRL_TYPE_LAST; i++) { + rv = virResctrlGetSchemataString(i, name, &schemata_str); + if (rv < 0) + continue; + + if (VIR_ALLOC(schemata) < 0) + goto cleanup; + + schemata->type = i; + + if (virResctrlLoadSchemata(schemata_str, schemata) < 0) + goto cleanup; + + VIR_FREE(schemata_str); + + if (VIR_APPEND_ELEMENT(grp->schematas, + grp->n_schematas, + schemata) < 0) + goto cleanup; + + virResctrlFreeSchemata(schemata); + } + + if (VIR_APPEND_ELEMENT(dom->groups, + dom->n_groups, + grp) < 0) + goto cleanup; + + ret = 0; + + cleanup: + VIR_FREE(path); + virResctrlFreeGroup(grp); + return ret; +} + +static int +virResctrlLoadDomain(virResctrlDomainPtr dom) +{ + int ret = -1; + int rv = -1; + DIR *dirp = NULL; + char *path = NULL; + struct dirent *ent; + + VIR_DEBUG("%s, %p\n", "", dom); + + rv = virDirOpenIfExists(&dirp, SYSFS_RESCTRL_PATH); + + if (rv < 0) + goto cleanup; + + /* load default resctrl group */ + if (virResctrlLoadGroup("", dom) < 0) + goto cleanup; + + while ((rv = virDirRead(dirp, &ent, path)) > 0) { + /* only read directory in resctrl */ + if ((ent->d_type != DT_DIR) || STREQ(ent->d_name, "info")) + continue; + + if (virResctrlLoadGroup(ent->d_name, dom) < 0) + goto cleanup; + } + + ret = 0; + + cleanup: + virDirClose(&dirp); + return ret; +} + +static void +virResctrlRefreshDom(virResctrlDomainPtr dom, virResctrlType type) +{ + size_t i; + size_t j; + size_t k; + + virResctrlGroupPtr default_grp = NULL; + virResctrlGroupPtr grp = NULL; + virResctrlSchemataPtr schemata = NULL; + virResctrlSchemataItemPtr schemataitem = NULL; + + default_grp = dom->groups[0]; + + /* We are sure that the first group is the default one */ + for (i = 1; i < dom->n_groups; i++) { + grp = dom->groups[i]; + for (j = 0; j < grp->n_schematas; j++) { + schemata = grp->schematas[j]; + /* we can only calculate one type of schemata */ + if (schemata->type != type) + continue; + for (k = 0; k < schemata->n_schemata_items; k++) { + schemataitem = schemata->schemata_items[k]; + /* if the schemata = 1, ignore it */ + if (schemataitem->continuous_schemata > 1) + /* calculate default schemata, it can be non-continuous */ + default_grp->schematas[j]->schemata_items[k]->schemata &= ~(schemataitem->continuous_schemata); + } + } + } +} + +int virResctrlGetFreeCache(virResctrlType type, + virResctrlSchemataPtr *schemata) +{ + VIR_DEBUG("%d, %p\n", type, schemata); + int ret = -1; + size_t i; + virResctrlDomainPtr dom = NULL; + virResctrlGroupPtr grp = NULL; + + if (VIR_ALLOC(dom) < 0) + return -1; + + if (virResctrlLoadDomain(dom) < 0) + goto cleanup; + + virResctrlRefreshDom(dom, type); + grp = dom->groups[0]; + + for (i = 0; i < grp->n_schematas; i ++) + if (grp->schematas[i]->type == type) + if (virResctrlCopySchemata(grp->schematas[i], schemata) < 0) + goto cleanup; + + if (schemata != NULL) + ret = 0; + + cleanup: + virResctrlFreeDomain(dom); + return ret; +} diff --git a/src/util/virresctrl.h b/src/util/virresctrl.h new file mode 100644 index 0000000..1b040d4 --- /dev/null +++ b/src/util/virresctrl.h @@ -0,0 +1,86 @@ +/* + * virresctrl.h: header for managing resctrl control + * + * Copyright (C) 2017 Intel, Inc. + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * <http://www.gnu.org/licenses/>. + * + * Authors: + * Eli Qiao <liyong.qiao(a)intel.com> + */ + +#ifndef __VIR_RESCTRL_H__ +# define __VIR_RESCTRL_H__ + +#include "virutil.h" + +typedef enum { + VIR_RESCTRL_TYPE_L3, + VIR_RESCTRL_TYPE_L3_CODE, + VIR_RESCTRL_TYPE_L3_DATA, + VIR_RESCTRL_TYPE_L2, + + VIR_RESCTRL_TYPE_LAST +} virResctrlType; + +VIR_ENUM_DECL(virResctrl); + +/* + * a virResctrlSchemataItem represents one of schemata object in a + * resource control group. + * eg: 0=f + */ +typedef struct _virResctrlSchemataItem virResctrlSchemataItem; +typedef virResctrlSchemataItem *virResctrlSchemataItemPtr; +struct _virResctrlSchemataItem { + unsigned int cache_id; /* cache resource id, eg: 0 */ + unsigned int continuous_schemata; /* schemata, should be a continuous bits, + eg: f, this schemata can be persisted + to sysfs */ + unsigned int schemata; /* schemata eg: f0f, a schemata which is calculated + at running time */ + unsigned long long size; /* the cache size schemata represented in B, + eg: (min * bits of continuous_schemata) */ +}; + +/* + * a virResctrlSchemata represents schemata objects of specific type of + * resource in a resource control group. + * eg: L3:0=f,1=ff + */ +typedef struct _virResctrlSchemata virResctrlSchemata; +typedef virResctrlSchemata *virResctrlSchemataPtr; +struct _virResctrlSchemata { + virResctrlType type; /* resource control type, eg: L3 */ + size_t n_schemata_items; /* number of schemata item, eg: 2 */ + virResctrlSchemataItemPtr *schemata_items; /* pointer list of schemata item */ +}; + +/* Get free cache of the host, result saved in schemata */ +int virResctrlGetFreeCache(virResctrlType type, + virResctrlSchemataPtr *schemata); + + +/* TODO Need to first define virDomainCachetunePtr */ +/* Set cache allocation for a VM domain */ +// int virResctrlSetCacheBanks(virDomainCachetunePtr cachetune, +// unsigned char *group_name, +// size_t n_pids, +// pid_t *pids); +// +/* remove cache allocation for a VM domain */ +// int virResctrlRemoveCacheBanks(unsigned char *group_name); +void virResctrlFreeSchemata(virResctrlSchemataPtr ptr); +#endif diff --git a/tests/Makefile.am b/tests/Makefile.am index 3cc828d..0e09e43 100644 --- a/tests/Makefile.am +++ b/tests/Makefile.am @@ -229,6 +229,7 @@ if WITH_LINUX test_programs += fchosttest test_programs += scsihosttest test_programs += vircaps2xmltest +test_programs += virresctrltest test_libraries += virusbmock.la \ virnetdevbandwidthmock.la \ virnumamock.la \ @@ -1150,6 +1151,10 @@ vircaps2xmltest_SOURCES = \ vircaps2xmltest.c testutils.h testutils.c virfilemock.c vircaps2xmltest_LDADD = $(LDADDS) +virresctrltest_SOURCES = \ + virresctrltest.c testutils.h testutils.c virfilemock.c +virresctrltest_LDADD = $(LDADDS) + virnumamock_la_SOURCES = \ virnumamock.c virnumamock_la_CFLAGS = $(AM_CFLAGS) @@ -1157,7 +1162,7 @@ virnumamock_la_LDFLAGS = $(MOCKLIBS_LDFLAGS) virnumamock_la_LIBADD = $(MOCKLIBS_LIBS) else ! WITH_LINUX -EXTRA_DIST += vircaps2xmltest.c virnumamock.c +EXTRA_DIST += vircaps2xmltest.c virresctrltest.c virnumamock.c endif ! WITH_LINUX if WITH_NSS diff --git a/tests/virresctrldata/L3-free.schemata b/tests/virresctrldata/L3-free.schemata new file mode 100644 index 0000000..9b47d25 --- /dev/null +++ b/tests/virresctrldata/L3-free.schemata @@ -0,0 +1 @@ +L3:0=1ffff;1=1ffff diff --git a/tests/virresctrldata/L3CODE-free.schemata b/tests/virresctrldata/L3CODE-free.schemata new file mode 100644 index 0000000..7039c45 --- /dev/null +++ b/tests/virresctrldata/L3CODE-free.schemata @@ -0,0 +1 @@ +L3CODE:0=cffff;1=cffff diff --git a/tests/virresctrldata/L3DATA-free.schemata b/tests/virresctrldata/L3DATA-free.schemata new file mode 100644 index 0000000..30f1cbd --- /dev/null +++ b/tests/virresctrldata/L3DATA-free.schemata @@ -0,0 +1 @@ +L3DATA:0=3ffff;1=3ffff diff --git a/tests/virresctrltest.c b/tests/virresctrltest.c new file mode 100644 index 0000000..4926468 --- /dev/null +++ b/tests/virresctrltest.c @@ -0,0 +1,117 @@ +/* + * Copyright (C) Intel, Inc. 2017 + * + * This library is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public + * License as published by the Free Software Foundation; either + * version 2.1 of the License, or (at your option) any later version. + * + * This library is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this library. If not, see + * <http://www.gnu.org/licenses/>. + * + * Authors: + * Eli Qiao <liyong.qiao(a)intel.com> + */ + +#include <config.h> +#include <stdlib.h> + +#include "testutils.h" +#include "virbitmap.h" +#include "virfilemock.h" +#include "virresctrl.h" + + +#define VIR_FROM_THIS VIR_FROM_NONE + +struct virResctrlData { + const char *filename; + virResctrlType type; +}; + +static void +GetSchemataStr(virResctrlSchemataPtr schemata, char **str) +{ + size_t i; + virBuffer buf = VIR_BUFFER_INITIALIZER; + virBufferAsprintf(&buf, "%s:%u=%x", + virResctrlTypeToString(schemata->type), + schemata->schemata_items[0]->cache_id, + schemata->schemata_items[0]->schemata); + + for (i = 1; i < schemata->n_schemata_items; i ++) + virBufferAsprintf(&buf, ";%u=%x", + schemata->schemata_items[i]->cache_id, + schemata->schemata_items[i]->schemata); + + *str = virBufferContentAndReset(&buf); +} + +static int +test_virResctrl(const void *opaque) +{ + struct virResctrlData *data = (struct virResctrlData *) opaque; + char *dir = NULL; + char *resctrl = NULL; + int ret = -1; + virResctrlSchemataPtr schemata = NULL; + char *schemata_str; + char *schemata_file; + + if (virAsprintf(&resctrl, "%s/virresctrldata/linux-%s/resctrl", + abs_srcdir, data->filename) < 0) + goto cleanup; + + if (virAsprintf(&schemata_file, "%s/virresctrldata/%s-free.schemata", + abs_srcdir, virResctrlTypeToString(data->type)) < 0) + goto cleanup; + + virFileMockAddPrefix("/sys/fs/resctrl", resctrl); + + if (virResctrlGetFreeCache(data->type, &schemata) < 0) + goto cleanup; + + GetSchemataStr(schemata, &schemata_str); + + if (virTestCompareToFile(schemata_str, schemata_file) < 0) + goto cleanup; + + virFileMockClearPrefixes(); + + ret = 0; + + cleanup: + VIR_FREE(dir); + VIR_FREE(resctrl); + VIR_FREE(schemata_str); + virResctrlFreeSchemata(schemata); + return ret; +} + +static int +mymain(void) +{ + int ret = 0; + +#define DO_TEST_FULL(filename, type) \ + do { \ + struct virResctrlData data = {filename, \ + type}; \ + if (virTestRun(filename, test_virResctrl, &data) < 0) \ + ret = -1; \ + } while (0) + + DO_TEST_FULL("resctrl", VIR_RESCTRL_TYPE_L3); + DO_TEST_FULL("resctrl-cdp", VIR_RESCTRL_TYPE_L3_CODE); + DO_TEST_FULL("resctrl-cdp", VIR_RESCTRL_TYPE_L3_DATA); + + return ret; +} + +VIR_TEST_MAIN_PRELOAD(mymain, abs_builddir "/.libs/virnumamock.so") -- 1.9.1

3 3

[libvirt] Making panic great again
by Ed Swierk 02 May '17

02 May '17

The panic device is currently documented as a way for "libvirt to receive panic notification from a QEMU guest". This is true, but not the whole story. When a guest triggers the panic device, QEMU pauses the guest, and libvirt takes the action specified by on_crash. This can interfere with the guest's own crash handling actions (e.g. writing a dump file and rebooting itself) if the guest triggers the panic device first (as Windows does). None of this is an obvious side effect of a notification mechanism, so the panic device documentation should mention it. (I'll send a documentation patch shortly.) Nor is this a desirable side effect, for guests that are configured to deal with crashes themselves. Sure, you can avoid using the panic device with such guests, but then virsh list or another application using the libvirt API to monitor domain state won't notice guest crashes. And if you still want libvirt to take action on guests that don't do it themselves, then you have to be careful to include the panic device only for those domains. Ideally libvirt would offer (1) a state indicating "this guest crashed and needs help" independently of triggering an action, and (2) a way to trigger an action only when needed to recover from the crash, excluding guests that deal with their own crashes. Sadly pvpanic and the HyperV crash MSR convey only that the guest crashed, not whether the guest is configured to take some action on its own. So there's no way to know precisely that a crashed (and not paused) guest is in need of assistance. But a state indicating "this guest crashed N minutes ago and hasn't rebooted itself" would be a useful approximation. And triggering an action N minutes after a guest crash if it hasn't rebooted itself in the meantime would make it easy to cap the downtime of crashed domains. Both could be implemented without changing either QEMU or panic device semantics. Does this seem useful to anyone else? --Ed

4 7

[libvirt] [PATCHv3 0/6] Support more options for intel-iommu
by Ján Tomko 28 Apr '17

28 Apr '17

[Adding Peter Xu to cc to see if he has any opinion on the docs] https://bugzilla.redhat.com/show_bug.cgi?id=1427005 v1: https://www.redhat.com/archives/libvir-list/2017-March/msg01072.html v2: https://www.redhat.com/archives/libvir-list/2017-April/msg00932.html new in v3: * add more devices to qemuxml2argv-intel-iommu-caching.xml to check the ordering (intel-iommu should come before other devices) * fix the capability clustering Ján Tomko (6): conf: add <irqchip mode> to <features> qemu: format kernel_irqchip on the command line conf: add <driver intremap> to <iommu> qemu: format intremap= on intel-iommu command line conf: add caching attribute to iommu device qemu: format caching-mode on iommu command line docs/formatdomain.html.in | 41 +++++++++- docs/schemas/domaincommon.rng | 30 ++++++++ src/conf/domain_conf.c | 90 ++++++++++++++++++++-- src/conf/domain_conf.h | 14 ++++ src/libvirt_private.syms | 1 + src/qemu/qemu_capabilities.c | 13 ++++ src/qemu/qemu_capabilities.h | 5 ++ src/qemu/qemu_command.c | 40 ++++++++++ tests/qemucapabilitiesdata/caps_1.5.3.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_1.6.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_1.7.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_2.1.1.x86_64.xml | 1 + .../qemucapabilitiesdata/caps_2.4.0.x86_64.replies | 22 ++++-- tests/qemucapabilitiesdata/caps_2.4.0.x86_64.xml | 1 + .../qemucapabilitiesdata/caps_2.5.0.x86_64.replies | 24 ++++-- tests/qemucapabilitiesdata/caps_2.5.0.x86_64.xml | 1 + .../caps_2.6.0-gicv2.aarch64.xml | 1 + .../caps_2.6.0-gicv3.aarch64.xml | 1 + tests/qemucapabilitiesdata/caps_2.6.0.ppc64le.xml | 1 + .../qemucapabilitiesdata/caps_2.6.0.x86_64.replies | 24 ++++-- tests/qemucapabilitiesdata/caps_2.6.0.x86_64.xml | 1 + tests/qemucapabilitiesdata/caps_2.7.0.s390x.xml | 1 + .../qemucapabilitiesdata/caps_2.7.0.x86_64.replies | 28 +++++-- tests/qemucapabilitiesdata/caps_2.7.0.x86_64.xml | 2 + tests/qemucapabilitiesdata/caps_2.8.0.s390x.xml | 1 + .../qemucapabilitiesdata/caps_2.8.0.x86_64.replies | 37 +++++++-- tests/qemucapabilitiesdata/caps_2.8.0.x86_64.xml | 2 + .../qemucapabilitiesdata/caps_2.9.0.x86_64.replies | 49 +++++++++--- tests/qemucapabilitiesdata/caps_2.9.0.x86_64.xml | 3 + .../qemuxml2argv-intel-iommu-caching.args | 25 ++++++ .../qemuxml2argv-intel-iommu-caching.xml | 50 ++++++++++++ .../qemuxml2argv-intel-iommu-irqchip.args | 19 +++++ .../qemuxml2argv-intel-iommu-irqchip.xml | 31 ++++++++ tests/qemuxml2argvtest.c | 16 ++++ .../qemuxml2xmlout-intel-iommu-caching.xml | 1 + .../qemuxml2xmlout-intel-iommu-irqchip.xml | 1 + tests/qemuxml2xmltest.c | 2 + 37 files changed, 533 insertions(+), 49 deletions(-) create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-caching.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-caching.xml create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-irqchip.args create mode 100644 tests/qemuxml2argvdata/qemuxml2argv-intel-iommu-irqchip.xml create mode 120000 tests/qemuxml2xmloutdata/qemuxml2xmlout-intel-iommu-caching.xml create mode 120000 tests/qemuxml2xmloutdata/qemuxml2xmlout-intel-iommu-irqchip.xml -- 2.10.2

4 14

[libvirt] [PATCH] docs: Add details about panic device behavior
by Ed Swierk 28 Apr '17

28 Apr '17

When a guest triggers the panic device, QEMU pauses the guest, and libvirt takes the action specified by on_crash. This can interfere with the guest's own crash handling actions (like writing a dump file and rebooting itself) if the guest triggers the panic device first (as Windows does via the Hyper-V crash CPU feature). This is not an obvious side effect of a notification mechanism, so it's worth explaining. Signed-off-by: Ed Swierk <eswierk(a)skyportsystems.com> --- docs/formatdomain.html.in | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/docs/formatdomain.html.in b/docs/formatdomain.html.in index e31a271..1c5fdb9 100644 --- a/docs/formatdomain.html.in +++ b/docs/formatdomain.html.in @@ -7078,7 +7078,11 @@ qemu-kvm -net nic,model=? /dev/null <h4><a name="elementsPanic">panic device</a></h4> <p> panic device enables libvirt to receive panic notification from a QEMU - guest. + guest. When the guest triggers the panic device, QEMU pauses the guest, and + libvirt takes the action specified by the <code>on_crash</code> element. + Note that this may interfere with the guest's own crash handling actions + (like writing a dump file and rebooting itself) if the guest triggers the + panic device first (as Windows does via the Hyper-V crash CPU feature). <span class="since">Since 1.2.1, QEMU and KVM only</span> </p> <p> -- 1.9.1

1 0

[libvirt] [PATCH] news: Document libxl nested HVM support
by Jim Fehlig 28 Apr '17

28 Apr '17

Nested HVM support in the libxl driver is a news-worthy improvement for libvirt 3.3.0. Signed-off-by: Jim Fehlig <jfehlig(a)suse.com> --- docs/news.xml | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/docs/news.xml b/docs/news.xml index 1f558451f..5dc8403b4 100644 --- a/docs/news.xml +++ b/docs/news.xml @@ -48,6 +48,17 @@ ease handling such breaks if they happen in the future. </description> </change> + <change> + <summary> + Add support for nested HVM domains in the libxl driver. + </summary> + <description> + Xen has supported nested HVM domains since version 4.4. The + libvirt libxl driver now supports nested HVM domains by + specifying the host-passthrough CPU mode when defining a + domain. + </description> + </change> </section> <section title="Bug fixes"> </section> -- 2.11.0

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[libvirt] [PATCH] conf: format only relevant attributes for graphics based on listen type
by Pavel Hrdina 28 Apr '17

28 Apr '17

This patch changes following output: ... <graphics type='vnc' port='-1' autoport='yes'> <listen type='none'/> </graphics> ... into this output: ... <graphics type='vnc'> <listen type='none'/> </graphics> ... Signed-off-by: Pavel Hrdina <phrdina(a)redhat.com> --- src/conf/domain_conf.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index fe9b7c7273..88bcd6c052 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -23297,7 +23297,8 @@ virDomainGraphicsDefFormat(virBufferPtr buf, return -1; } - if (glisten->type == VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_SOCKET) { + switch (glisten->type) { + case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_SOCKET: /* To not break migration we shouldn't print the 'socket' attribute * if it's auto-generated or if it's based on config option from * qemu.conf. If the socket is provided by user we need to print it @@ -23307,7 +23308,10 @@ virDomainGraphicsDefFormat(virBufferPtr buf, (flags & VIR_DOMAIN_DEF_FORMAT_MIGRATABLE))) { virBufferEscapeString(buf, " socket='%s'", glisten->socket); } - } else { + break; + + case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_ADDRESS: + case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NETWORK: if (def->data.vnc.port && (!def->data.vnc.autoport || !(flags & VIR_DOMAIN_DEF_FORMAT_INACTIVE))) virBufferAsprintf(buf, " port='%d'", @@ -23325,6 +23329,10 @@ virDomainGraphicsDefFormat(virBufferPtr buf, virBufferAsprintf(buf, " websocket='%d'", def->data.vnc.websocket); virDomainGraphicsListenDefFormatAddr(buf, glisten, flags); + break; + case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_NONE: + case VIR_DOMAIN_GRAPHICS_LISTEN_TYPE_LAST: + break; } if (def->data.vnc.keymap) -- 2.12.2

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