April 2019 - Devel - libvirt List Archives

[libvirt] [PATCH v2] qemu: fix domain unlock/unref in qemuMigrationSrcPerform
by Nikolay Shirokovskiy 01 Apr '19

01 Apr '19

qemuMigrationSrcPerform callers expect it to call virDomainObjEndAPI in any case so on error paths we miss the virDomainObjEndAPI call. To fix this let's make qemuMigrationSrcPerform callers responsible for the virDomainObjEndAPI call. Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy(a)virtuozzo.com> --- diff to v1 [1]: - move virDomainObjEndAPI call to qemuMigrationSrcPerform callers [1] https://www.redhat.com/archives/libvir-list/2019-April/msg00032.html src/qemu/qemu_driver.c | 21 +++++++++------------ src/qemu/qemu_migration.c | 2 -- 2 files changed, 9 insertions(+), 14 deletions(-) diff --git a/src/qemu/qemu_driver.c b/src/qemu/qemu_driver.c index 62d8d97..37baa5c 100644 --- a/src/qemu/qemu_driver.c +++ b/src/qemu/qemu_driver.c @@ -12550,7 +12550,7 @@ qemuDomainMigratePerform(virDomainPtr dom, unsigned long resource) { virQEMUDriverPtr driver = dom->conn->privateData; - virDomainObjPtr vm; + virDomainObjPtr vm = NULL; int ret = -1; const char *dconnuri = NULL; qemuMigrationParamsPtr migParams = NULL; @@ -12571,10 +12571,8 @@ qemuDomainMigratePerform(virDomainPtr dom, if (!(vm = qemuDomObjFromDomain(dom))) goto cleanup; - if (virDomainMigratePerformEnsureACL(dom->conn, vm->def) < 0) { - virDomainObjEndAPI(&vm); + if (virDomainMigratePerformEnsureACL(dom->conn, vm->def) < 0) goto cleanup; - } if (flags & VIR_MIGRATE_PEER2PEER) VIR_STEAL_PTR(dconnuri, uri); @@ -12592,6 +12590,7 @@ qemuDomainMigratePerform(virDomainPtr dom, flags, dname, resource, false); cleanup: + virDomainObjEndAPI(&vm); qemuMigrationParamsFree(migParams); return ret; } @@ -12988,7 +12987,7 @@ qemuDomainMigratePerform3(virDomainPtr dom, unsigned long resource) { virQEMUDriverPtr driver = dom->conn->privateData; - virDomainObjPtr vm; + virDomainObjPtr vm = NULL; qemuMigrationParamsPtr migParams = NULL; int ret = -1; @@ -13001,10 +13000,8 @@ qemuDomainMigratePerform3(virDomainPtr dom, if (!(vm = qemuDomObjFromDomain(dom))) goto cleanup; - if (virDomainMigratePerform3EnsureACL(dom->conn, vm->def) < 0) { - virDomainObjEndAPI(&vm); + if (virDomainMigratePerform3EnsureACL(dom->conn, vm->def) < 0) goto cleanup; - } ret = qemuMigrationSrcPerform(driver, dom->conn, vm, xmlin, NULL, dconnuri, uri, NULL, NULL, 0, NULL, 0, @@ -13014,6 +13011,7 @@ qemuDomainMigratePerform3(virDomainPtr dom, flags, dname, resource, true); cleanup: + virDomainObjEndAPI(&vm); qemuMigrationParamsFree(migParams); return ret; } @@ -13030,7 +13028,7 @@ qemuDomainMigratePerform3Params(virDomainPtr dom, unsigned int flags) { virQEMUDriverPtr driver = dom->conn->privateData; - virDomainObjPtr vm; + virDomainObjPtr vm = NULL; const char *dom_xml = NULL; const char *persist_xml = NULL; const char *dname = NULL; @@ -13088,10 +13086,8 @@ qemuDomainMigratePerform3Params(virDomainPtr dom, if (!(vm = qemuDomObjFromDomain(dom))) goto cleanup; - if (virDomainMigratePerform3ParamsEnsureACL(dom->conn, vm->def) < 0) { - virDomainObjEndAPI(&vm); + if (virDomainMigratePerform3ParamsEnsureACL(dom->conn, vm->def) < 0) goto cleanup; - } ret = qemuMigrationSrcPerform(driver, dom->conn, vm, dom_xml, persist_xml, dconnuri, uri, graphicsuri, listenAddress, @@ -13100,6 +13096,7 @@ qemuDomainMigratePerform3Params(virDomainPtr dom, cookiein, cookieinlen, cookieout, cookieoutlen, flags, dname, bandwidth, true); cleanup: + virDomainObjEndAPI(&vm); qemuMigrationParamsFree(migParams); VIR_FREE(migrate_disks); return ret; diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index 419a729..bb43aff 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -4686,7 +4686,6 @@ qemuMigrationSrcPerformJob(virQEMUDriverPtr driver, } cleanup: - virDomainObjEndAPI(&vm); virObjectEventStateQueue(driver->domainEventState, event); virObjectUnref(cfg); return ret; @@ -4757,7 +4756,6 @@ qemuMigrationSrcPerformPhase(virQEMUDriverPtr driver, qemuDomainRemoveInactiveJob(driver, vm); cleanup: - virDomainObjEndAPI(&vm); return ret; } -- 1.8.3.1

2 1

[libvirt] [PATCH v2 0/7] extend virsh domstate to show additional information
by Bjoern Walk 01 Apr '19

01 Apr '19

This patch series introduces the ability to save additional information for the domain state and exposes this information in virsh domstate. For example in the case of QEMU guest panic events, we can provide additional information like the crash reason or register state of the domain. This information usually gets logged in the domain log but for debugging it is useful to have it accessible from the client. Therefore, let's introduce a new public API function, virDomainGetStateParams, an extensible version of virDomainGetState, which returns the complete state of the domain, including newly introduced additional information. Let's also extend virsh domstate and introduce a new parameter --info to show the domain state, reason and additional information when available. virsh domstate --info guest1 crashed (panicked: s390: core='1' psw-mask='0x1234000000000000' \ psw-addr='0x0000000000001234' reason='disabled-wait') Previous version is here: https://www.redhat.com/archives/libvir-list/2018-July/msg00686.html v1 -> v2: * refactored the public API according to discussions to provide a more machine-parsable interface Bjoern Walk (7): qemu: monitor: move event data structure to domain qemu: domain: store and update panic info lib: introduce virDomainGetStateParams function remote: implement remoteDomainGetStateParams qemu: implement qemuDomainGetStateParams virsh: domstate: report detailed state if available news: add entry for virDomainGetStateParams docs/news.xml | 11 +++ include/libvirt/libvirt-domain.h | 76 +++++++++++++++++ src/driver-hypervisor.h | 9 ++ src/libvirt-domain.c | 64 ++++++++++++++ src/libvirt_public.syms | 1 + src/qemu/qemu_domain.c | 89 +++++++++++++++++++- src/qemu/qemu_domain.h | 47 +++++++++++ src/qemu/qemu_driver.c | 126 +++++++++++++++++++++++++++- src/qemu/qemu_monitor.c | 53 +----------- src/qemu/qemu_monitor.h | 48 ++--------- src/qemu/qemu_monitor_json.c | 20 ++--- src/qemu/qemu_process.c | 2 +- src/remote/remote_daemon_dispatch.c | 50 +++++++++++ src/remote/remote_driver.c | 44 ++++++++++ src/remote/remote_protocol.x | 22 ++++- src/remote_protocol-structs | 12 +++ tools/virsh-domain-monitor.c | 102 +++++++++++++++++++--- tools/virsh.pod | 5 +- 18 files changed, 658 insertions(+), 123 deletions(-) -- 2.17.0

2 21

[libvirt] [RFC PATCH 0/8] Introduce the virDomainDefineJSONFlags() public API
by Andrea Bolognani 01 Apr '19

01 Apr '19

Back in 2005, when the libvirt project was started, XML was pretty much the only sensible, widely used format one could use to store structured data. A lot has changed since then, and these days you'd be hard pressed to find any API that does not use JSON for encoding information; in fact, we already use JSON heavily inside libvirt, for example to communicate with QEMU processes through QMP or store configuration data for use by the libvirt NSS plugin. The reasons for JSON's success over XML are plain to see: you get the same nicely structured data, but none of the ugly angle brackets or annoying repetition caused by having to both open *and* close elements explicitly; additionally, you get support for extremely useful and common data structures such as lists and dictionary out of the box, and even properly typed strings and numbers. It's just an overall much better data representation language. This RFC series provides the initial, very basic (yet fully functional) implementation of a JSON-based alternative to the existing virDomainDefineXML(); over time, we would introduce similar APIs for defining libvirt objects other than domains, such as for example networks. Once enough time has passed, we might even consider removing the XML-based APIs altogether and drop the XML parsing code along with our libxml2 dependency, making libvirt much leaner in the process. Andrea Bolognani (8): conf: Introduce virDomainDefParseJSONString() tests: Add qemujson2argvtest rpc: Add JSON to the list of fixups in gendispatch Introduce the virDomainDefineJSONFlags() public API remote: Implement virDomainDefineJSONFlags() support qemu: Add virDomainDefineJSONFlags() support virsh: Add JSON support to the 'define' subcommand news: Update for virDomainDefineJSONFlags() docs/news.xml | 11 + include/libvirt/libvirt-domain.h | 3 + include/libvirt/virterror.h | 1 + src/conf/domain_conf.c | 241 ++++ src/conf/domain_conf.h | 5 + src/driver-hypervisor.h | 6 + src/libvirt-domain.c | 45 + src/libvirt_private.syms | 1 + src/libvirt_public.syms | 1 + src/qemu/qemu_driver.c | 84 ++ src/remote/remote_driver.c | 3 +- src/remote/remote_protocol.x | 19 +- src/remote_protocol-structs | 8 + src/rpc/gendispatch.pl | 1 + src/util/virerror.c | 3 + tests/Makefile.am | 15 + tests/qemujson2argvdata/tiny.json | 29 + .../qemujson2argvdata/tiny.x86_64-latest.args | 33 + tests/qemujson2argvtest.c | 1001 +++++++++++++++++ tools/virsh-domain.c | 36 +- 20 files changed, 1540 insertions(+), 6 deletions(-) create mode 100644 tests/qemujson2argvdata/tiny.json create mode 100644 tests/qemujson2argvdata/tiny.x86_64-latest.args create mode 100644 tests/qemujson2argvtest.c -- 2.20.1

1 8

[libvirt] [PATCH] qemu: fix domain unlock/unref in qemuMigrationSrcPerform
by Nikolay Shirokovskiy 01 Apr '19

01 Apr '19

qemuMigrationSrcPerform callers expect it to call virDomainObjEndAPI in any case. Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy(a)virtuozzo.com> --- src/qemu/qemu_migration.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/src/qemu/qemu_migration.c b/src/qemu/qemu_migration.c index 419a729..ce4c443 100644 --- a/src/qemu/qemu_migration.c +++ b/src/qemu/qemu_migration.c @@ -4799,6 +4799,7 @@ qemuMigrationSrcPerform(virQEMUDriverPtr driver, if (cookieinlen) { virReportError(VIR_ERR_OPERATION_INVALID, "%s", _("received unexpected cookie with P2P migration")); + virDomainObjEndAPI(&vm); return -1; } @@ -4813,6 +4814,7 @@ qemuMigrationSrcPerform(virQEMUDriverPtr driver, if (dconnuri) { virReportError(VIR_ERR_INTERNAL_ERROR, "%s", _("Unexpected dconnuri parameter with non-peer2peer migration")); + virDomainObjEndAPI(&vm); return -1; } -- 1.8.3.1

3 2

[libvirt] [PATCH] apparmor: support QEMU hppa, nios2, or1k, riscv32 and riscv64
by intrigeri+libvirt＠boum.org 01 Apr '19

01 Apr '19

From: intrigeri <intrigeri+libvirt(a)boum.org> Fixes: https://bugs.debian.org/914940 --- src/security/apparmor/libvirt-qemu | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/src/security/apparmor/libvirt-qemu b/src/security/apparmor/libvirt-qemu index 474aaefdf8..165558fe83 100644 --- a/src/security/apparmor/libvirt-qemu +++ b/src/security/apparmor/libvirt-qemu @@ -103,6 +103,7 @@ /usr/bin/qemu-system-alpha rmix, /usr/bin/qemu-system-arm rmix, /usr/bin/qemu-system-cris rmix, + /usr/bin/qemu-system-hppa rmix, /usr/bin/qemu-system-i386 rmix, /usr/bin/qemu-system-lm32 rmix, /usr/bin/qemu-system-m68k rmix, @@ -113,10 +114,14 @@ /usr/bin/qemu-system-mips64el rmix, /usr/bin/qemu-system-mipsel rmix, /usr/bin/qemu-system-moxie rmix, + /usr/bin/qemu-system-nios2 rmix, + /usr/bin/qemu-system-or1k rmix, /usr/bin/qemu-system-or32 rmix, /usr/bin/qemu-system-ppc rmix, /usr/bin/qemu-system-ppc64 rmix, /usr/bin/qemu-system-ppcemb rmix, + /usr/bin/qemu-system-riscv32 rmix, + /usr/bin/qemu-system-riscv64 rmix, /usr/bin/qemu-system-s390x rmix, /usr/bin/qemu-system-sh4 rmix, /usr/bin/qemu-system-sh4eb rmix, -- 2.20.1

3 7

[libvirt] [PATCH v2 0/4] apps: update the listed libvirt apps
by Daniel P. Berrangé 01 Apr '19

01 Apr '19

Purge apps that are dead and fix broken links Daniel P. Berrangé (4): apps: remove dead archipel project apps: update link for buildbot apps: drop link for zenoss software apps: remove VM Manager android app docs/apps.html.in | 39 +-------------------------------------- 1 file changed, 1 insertion(+), 38 deletions(-) -- 2.20.1

2 5