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[libvirt] [PATCH] Fix probing of legacy Xen driver to not leave URI set
by Daniel P. Berrange 26 Jul '13

26 Jul '13

From: "Daniel P. Berrange" <berrange(a)redhat.com> When the legacy Xen driver probes with a NULL URI, and finds itself running on Xen, it will set conn->uri. A little bit later though it checks to see if libxl support exists, and if so declines the driver. This leaves the conn->uri set to 'xen:///', so if libxl also declines it, it prevents probing of the QEMU driver. Once a driver has set the conn->uri, it must *never* decline an open request. So we must move the libxl check earlier Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com> --- src/xen/xen_driver.c | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/src/xen/xen_driver.c b/src/xen/xen_driver.c index 39334b7..4ae38d3 100644 --- a/src/xen/xen_driver.c +++ b/src/xen/xen_driver.c @@ -365,6 +365,13 @@ xenUnifiedConnectOpen(virConnectPtr conn, virConnectAuthPtr auth, unsigned int f if (!xenUnifiedProbe()) return VIR_DRV_OPEN_DECLINED; +#ifdef WITH_LIBXL + /* Decline xen:// URI if xend is not running and libxenlight + * driver is potentially available. */ + if (!xenUnifiedXendProbe()) + return VIR_DRV_OPEN_DECLINED; +#endif + if (!(conn->uri = virURIParse("xen:///"))) return VIR_DRV_OPEN_ERROR; } else { @@ -374,6 +381,12 @@ xenUnifiedConnectOpen(virConnectPtr conn, virConnectAuthPtr auth, unsigned int f STRCASENEQ(conn->uri->scheme, "http")) return VIR_DRV_OPEN_DECLINED; +#ifdef WITH_LIBXL + /* Decline xen:// URI if xend is not running and libxenlight + * driver is potentially available. */ + if (!xenUnifiedXendProbe()) + return VIR_DRV_OPEN_DECLINED; +#endif /* Return an error if the path isn't '' or '/' */ if (conn->uri->path && @@ -395,13 +408,6 @@ xenUnifiedConnectOpen(virConnectPtr conn, virConnectAuthPtr auth, unsigned int f } } -#ifdef WITH_LIBXL - /* Decline xen:// URI if xend is not running and libxenlight - * driver is potentially available. */ - if (!xenUnifiedXendProbe()) - return VIR_DRV_OPEN_DECLINED; -#endif - /* We now know the URI is definitely for this driver, so beyond * here, don't return DECLINED, always use ERROR */ -- 1.8.3.1

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[libvirt] [PATCH] Set default partition in libvirtd instead of libvirt_lxc
by Daniel P. Berrange 26 Jul '13

26 Jul '13

From: "Daniel P. Berrange" <berrange(a)redhat.com> By setting the default partition in libvirt_lxc it is not visible when querying the live XML. Move setting of the default partition into libvirtd virLXCProcessStart Signed-off-by: Daniel P. Berrange <berrange(a)redhat.com> --- src/lxc/lxc_cgroup.c | 14 -------------- src/lxc/lxc_process.c | 14 ++++++++++++++ 2 files changed, 14 insertions(+), 14 deletions(-) diff --git a/src/lxc/lxc_cgroup.c b/src/lxc/lxc_cgroup.c index af91b04..0b0ca02 100644 --- a/src/lxc/lxc_cgroup.c +++ b/src/lxc/lxc_cgroup.c @@ -433,20 +433,6 @@ virCgroupPtr virLXCCgroupCreate(virDomainDefPtr def) { virCgroupPtr cgroup = NULL; - if (!def->resource) { - virDomainResourceDefPtr res; - - if (VIR_ALLOC(res) < 0) - goto cleanup; - - if (VIR_STRDUP(res->partition, "/machine") < 0) { - VIR_FREE(res); - goto cleanup; - } - - def->resource = res; - } - if (def->resource->partition[0] != '/') { virReportError(VIR_ERR_CONFIG_UNSUPPORTED, _("Resource partition '%s' must start with '/'"), diff --git a/src/lxc/lxc_process.c b/src/lxc/lxc_process.c index 1a5686f..247e516 100644 --- a/src/lxc/lxc_process.c +++ b/src/lxc/lxc_process.c @@ -1007,6 +1007,20 @@ int virLXCProcessStart(virConnectPtr conn, return -1; } + if (!vm->def->resource) { + virDomainResourceDefPtr res; + + if (VIR_ALLOC(res) < 0) + goto cleanup; + + if (VIR_STRDUP(res->partition, "/machine") < 0) { + VIR_FREE(res); + goto cleanup; + } + + vm->def->resource = res; + } + if (virAsprintf(&logfile, "%s/%s.log", cfg->logDir, vm->def->name) < 0) return -1; -- 1.8.1.4

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[libvirt] [PATCH v2 0/2] Split driver StateAutoStart from StateInitialization
by John Ferlan 26 Jul '13

26 Jul '13

This is an update to change the 'int' AutoStart function to 'void' as was discussed in the initial review: https://www.redhat.com/archives/libvir-list/2013-July/msg01674.html John Ferlan (2): Separate out StateAutoStart from StateInitialize virStateDriver - Separate AutoStart from Initialize src/driver.h | 4 ++++ src/libvirt.c | 14 +++++++++++++- src/libxl/libxl_driver.c | 16 +++++++++++++--- src/lxc/lxc_driver.c | 16 ++++++++++++++-- src/network/bridge_driver.c | 18 +++++++++++++++++- src/qemu/qemu_driver.c | 17 +++++++++++++++-- src/storage/storage_driver.c | 18 +++++++++++++++++- src/uml/uml_driver.c | 17 +++++++++++++++-- 8 files changed, 108 insertions(+), 12 deletions(-) -- 1.8.1.4

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[libvirt] [PATCH 0/7] Probe QEMU binary for host CPU and use it for computations
by Jiri Denemark 26 Jul '13

26 Jul '13

Since QEMU and kvm may filter some host CPU features or add efficiently emulated features, asking QEMU binary for host CPU data provides better results when we later use the data for building guest CPUs. Jiri Denemark (7): cpu: Add support for loading and storing CPU data cpu: Export few x86-specific APIs x86: Ignore CPUID functions greater than 10 qemu: Add monitor APIs to fetch CPUID data from QEMU qemu: Make QMP probing process reusable qemu: Probe QEMU binary for host CPU qemu: Use host CPU from QEMU for computations src/cpu/cpu.c | 41 ++++ src/cpu/cpu.h | 13 ++ src/cpu/cpu_x86.c | 161 +++++++++++--- src/cpu/cpu_x86.h | 10 + src/cpu/cpu_x86_data.h | 1 + src/libvirt_private.syms | 9 + src/qemu/qemu_capabilities.c | 234 ++++++++++++++------- src/qemu/qemu_capabilities.h | 2 + src/qemu/qemu_command.c | 32 ++- src/qemu/qemu_domain.c | 21 +- src/qemu/qemu_monitor.c | 21 ++ src/qemu/qemu_monitor.h | 3 + src/qemu/qemu_monitor_json.c | 162 ++++++++++++++ src/qemu/qemu_monitor_json.h | 6 + tests/Makefile.am | 1 + .../qemumonitorjson-getcpu-empty.data | 2 + .../qemumonitorjson-getcpu-empty.json | 46 ++++ .../qemumonitorjson-getcpu-filtered.data | 4 + .../qemumonitorjson-getcpu-filtered.json | 46 ++++ .../qemumonitorjson-getcpu-full.data | 4 + .../qemumonitorjson-getcpu-full.json | 46 ++++ .../qemumonitorjson-getcpu-host.data | 5 + .../qemumonitorjson-getcpu-host.json | 45 ++++ tests/qemumonitorjsontest.c | 74 +++++++ 24 files changed, 881 insertions(+), 108 deletions(-) create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-getcpu-empty.data create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-getcpu-empty.json create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-getcpu-filtered.data create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-getcpu-filtered.json create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-getcpu-full.data create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-getcpu-full.json create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-getcpu-host.data create mode 100644 tests/qemumonitorjsondata/qemumonitorjson-getcpu-host.json -- 1.8.3.2

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[libvirt] [PATCH 0/4] fix two issues about diskchain
by Guannan Ren 26 Jul '13

26 Jul '13

1, Report an backing missing error on guest boot if its disks have broken backing file chain 2, List volume even if its diskchain is broken Guannan Ren(4) [PATCH 1/4] qemu: refactor qemuDomainCheckDiskPresence for only disk [PATCH 2/4] qemu: report error if disk backing files doesn't exist [PATCH 3/4] qemu: check presence of each disk in chain [PATCH 4/4] storage: list volumes even if its diskchain is broken src/qemu/qemu_domain.c | 108 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++-------------------------------------------- src/qemu/qemu_process.c | 7 ------- src/storage/storage_backend_fs.c | 4 +++- src/util/virstoragefile.c | 23 +++++++++++++++-------- tests/virstoragetest.c | 16 ++++++++-------- 5 files changed, 90 insertions(+), 68 deletions(-)

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[libvirt] [PATCH] build: avoid -lgcrypt with newer gnutls
by Eric Blake 26 Jul '13

26 Jul '13

https://bugzilla.redhat.com/show_bug.cgi?id=951637 Newer gnutls uses nettle, rather than gcrypt, which is a lot nicer regarding initialization. Yet we were unconditionally initializing gcrypt even when gnutls wouldn't be using it, and having two crypto libraries linked into libvirt.so is pointless. The ldd probe in configure borrows from our libnl-1 vs. libnl-3 code. * configure.ac (WITH_GNUTLS): Probe whether to add -lgcrypt, and define a witness WITH_GNUTLS_GCRYPT. * src/libvirt.c (virTLSMutexInit, virTLSMutexDestroy) (virTLSMutexLock, virTLSMutexUnlock, virTLSThreadImpl) (virGlobalInit): Honor the witness. * libvirt.spec.in (BuildRequires): Make gcrypt usage conditional, no longer needed in Fedora 19. Signed-off-by: Eric Blake <eblake(a)redhat.com> --- Tested with 'ldd src/.libs/libvirt.so | grep -E "(gcry|net|tls)"': - on RHEL 6.4 and Fedora 18, pre- and post-patch remain unchanged (use of just libgnutls/libgcrypt) - on Fedora 19, pre-patch linked against libgnutls, libgcrypt, and libnettle, post-patch linked against just libgnutls and libnettle This should probably go in for 1.1.1, but it's not a build-breaker so it needs review. configure.ac | 27 +++++++++++++++++++++------ libvirt.spec.in | 2 ++ src/libvirt.c | 10 ++++++---- 3 files changed, 29 insertions(+), 10 deletions(-) diff --git a/configure.ac b/configure.ac index cc9942a..de209e2 100644 --- a/configure.ac +++ b/configure.ac @@ -1098,13 +1098,28 @@ if test "x$with_gnutls" != "xno"; then AC_MSG_ERROR([You must install the GnuTLS library in order to compile and run libvirt]) fi else - dnl Not all versions of gnutls include -lgcrypt, and so we add - dnl it explicitly for the calls to gcry_control/check_version - GNUTLS_LIBS="$GNUTLS_LIBS -lgcrypt" - dnl We're not using gcrypt deprecated features so define - dnl GCRYPT_NO_DEPRECATED to avoid deprecated warnings - GNUTLS_CFLAGS="$GNUTLS_CFLAGS -DGCRYPT_NO_DEPRECATED" + dnl If gnutls linked against -lgcrypt, then we must initialize gcrypt + dnl prior to using gnutls. Newer versions of gnutls use -lnettle, in + dnl which case we don't want to drag in gcrypt ourselves. + gnutls_ldd= + for dir in /usr/lib64 /usr/lib /usr/lib/*-linux-gnu*; do + if test -f $dir/libgnutls.so; then + gnutls_ldd=`(ldd $dir/libgnutls.so) 2>&1` + break + fi + done + case $gnutls_ldd in + '' | *libgcrypt.so*) + GNUTLS_LIBS="$GNUTLS_LIBS -lgcrypt" + dnl We're not using gcrypt deprecated features so define + dnl GCRYPT_NO_DEPRECATED to avoid deprecated warnings + GNUTLS_CFLAGS="$GNUTLS_CFLAGS -DGCRYPT_NO_DEPRECATED" + AC_DEFINE_UNQUOTED([WITH_GNUTLS_GCRYPT], 1, + [whether GNUTLS uses gcrypt]) + ;; + *) ;; # Assume no gcrypt usage + esac dnl gnutls 3.x moved some declarations to a new header AC_CHECK_HEADERS([gnutls/crypto.h], [], [], [[ diff --git a/libvirt.spec.in b/libvirt.spec.in index e0e0004..4320281 100644 --- a/libvirt.spec.in +++ b/libvirt.spec.in @@ -422,7 +422,9 @@ BuildRequires: readline-devel BuildRequires: ncurses-devel BuildRequires: gettext BuildRequires: libtasn1-devel +%if (0%{?rhel} && 0%{?rhel} < 7) || (0%{?fedora} && 0%{?fedora} < 19) BuildRequires: libgcrypt-devel +%endif BuildRequires: gnutls-devel BuildRequires: libattr-devel %if %{with_libvirtd} diff --git a/src/libvirt.c b/src/libvirt.c index 444c1c3..9775b97 100644 --- a/src/libvirt.c +++ b/src/libvirt.c @@ -55,7 +55,9 @@ #include "intprops.h" #include "virconf.h" #if WITH_GNUTLS -# include <gcrypt.h> +# if WITH_GNUTLS_GCRYPT +# include <gcrypt.h> +# endif # include "rpc/virnettlscontext.h" #endif #include "vircommand.h" @@ -270,7 +272,7 @@ winsock_init(void) #endif -#ifdef WITH_GNUTLS +#ifdef WITH_GNUTLS_GCRYPT static int virTLSMutexInit(void **priv) { virMutexPtr lock = NULL; @@ -323,7 +325,7 @@ static struct gcry_thread_cbs virTLSThreadImpl = { virTLSMutexUnlock, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL }; -#endif +#endif /* WITH_GNUTLS_GCRYPT */ /* Helper macros to implement VIR_DOMAIN_DEBUG using just C99. This * assumes you pass fewer than 15 arguments to VIR_DOMAIN_DEBUG, but @@ -407,7 +409,7 @@ virGlobalInit(void) virErrorInitialize() < 0) goto error; -#ifdef WITH_GNUTLS +#ifdef WITH_GNUTLS_GCRYPT /* * This sequence of API calls it copied exactly from * gnutls 2.12.23 source lib/gcrypt/init.c, with -- 1.8.3.1

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[libvirt] [PATCH 0/2] Split driver StateAutoStart from StateInitialization
by John Ferlan 26 Jul '13

26 Jul '13

The post push review/comments for the chap authentication determined that trying to connect to qemu driver from within the storage auto start would not be successful, see the following and followups https://www.redhat.com/archives/libvir-list/2013-July/msg01409.html These patches will split the virStateInitialize() into two phases - the first being the bulk of the existing code and the second being just running the auto start functionality for each of the drivers that needs/support it. I realize it's probably too late for 1.1.1, but figured it'd be good to be ready when the barn door opens again. John Ferlan (2): Separate out StateAutoStart from StateInitialize virStateDriver - Separate AutoStart from Initialize src/driver.h | 4 ++++ src/libvirt.c | 23 ++++++++++++++++++++++- src/libxl/libxl_driver.c | 18 +++++++++++++++--- src/lxc/lxc_driver.c | 18 ++++++++++++++++-- src/network/bridge_driver.c | 20 +++++++++++++++++++- src/qemu/qemu_driver.c | 18 ++++++++++++++++-- src/storage/storage_driver.c | 19 ++++++++++++++++++- src/uml/uml_driver.c | 18 ++++++++++++++++-- 8 files changed, 126 insertions(+), 12 deletions(-) -- 1.8.1.4

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[libvirt] [PATCH 0/4] Test logical volume cloning in storagevolxml2argvtest
by Ján Tomko 26 Jul '13

26 Jul '13

Ján Tomko (4): Use separate macros for failure/success in vol-to-argv test Move pool XML out of storagevolxml2argvdata Move volume XMLs out of storagevolxml2argvdata Add inputpool to storagevolxml2argvtest .../storagevolxml2argvdata/logical-from-qcow2.argv | 2 + tests/storagevolxml2argvdata/pool-dir.xml | 18 --- .../storagevolxml2argvdata/qcow2-from-logical.argv | 2 + tests/storagevolxml2argvdata/vol-file.xml | 20 ---- tests/storagevolxml2argvdata/vol-qcow2-1.1.xml | 32 ------ tests/storagevolxml2argvtest.c | 128 ++++++++++++++++----- .../vol-qcow2-0.10-lazy.xml | 0 tests/storagevolxml2xmlin/vol-qcow2-1.1.xml | 2 +- tests/storagevolxml2xmlin/vol-qcow2-lazy.xml | 2 +- .../vol-qcow2-nobacking.xml | 0 tests/storagevolxml2xmlin/vol-qcow2.xml | 2 +- .../vol-qcow2-0.10-lazy.xml} | 8 +- tests/storagevolxml2xmlout/vol-qcow2-1.1.xml | 2 +- tests/storagevolxml2xmlout/vol-qcow2-lazy.xml | 2 +- .../vol-qcow2-nobacking.xml} | 16 +-- tests/storagevolxml2xmlout/vol-qcow2.xml | 2 +- tests/storagevolxml2xmltest.c | 2 + 17 files changed, 120 insertions(+), 120 deletions(-) create mode 100644 tests/storagevolxml2argvdata/logical-from-qcow2.argv delete mode 100644 tests/storagevolxml2argvdata/pool-dir.xml create mode 100644 tests/storagevolxml2argvdata/qcow2-from-logical.argv delete mode 100644 tests/storagevolxml2argvdata/vol-file.xml delete mode 100644 tests/storagevolxml2argvdata/vol-qcow2-1.1.xml rename tests/{storagevolxml2argvdata => storagevolxml2xmlin}/vol-qcow2-0.10-lazy.xml (100%) rename tests/{storagevolxml2argvdata => storagevolxml2xmlin}/vol-qcow2-nobacking.xml (100%) rename tests/{storagevolxml2argvdata/vol-qcow2-lazy.xml => storagevolxml2xmlout/vol-qcow2-0.10-lazy.xml} (84%) rename tests/{storagevolxml2argvdata/vol-qcow2.xml => storagevolxml2xmlout/vol-qcow2-nobacking.xml} (55%) -- 1.8.1.5

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[libvirt] [PATCH 0/4] Fix a pair of crashes in DNS XML parsing
by Ján Tomko 26 Jul '13

26 Jul '13

*** BLUAAARRRGHB HERE *** Ján Tomko (4): Set the number of elements to 0 in virNetwork*Clear Don't check validity of missing attributes in DNS SRV XML Remove double space in error messages Remove redundant free in virNetworkDNSHostDefParseXML src/conf/network_conf.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) -- 1.8.1.5

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[libvirt] [PATCH] conf:Fix a copy paste error
by Alex Jia 26 Jul '13

26 Jul '13

Signed-off-by: Alex Jia <ajia(a)redhat.com> --- src/conf/domain_conf.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/src/conf/domain_conf.c b/src/conf/domain_conf.c index 10cb7f6..0e74039 100644 --- a/src/conf/domain_conf.c +++ b/src/conf/domain_conf.c @@ -5153,7 +5153,7 @@ virDomainDiskDefParseXML(virDomainXMLOptionPtr xmlopt, xmlStrEqual(cur->name, BAD_CAST "product")) { product = (char *)xmlNodeGetContent(cur); - if (strlen(vendor) > PRODUCT_LEN) { + if (strlen(product) > PRODUCT_LEN) { virReportError(VIR_ERR_XML_ERROR, "%s", _("disk product is more than 16 characters")); goto error; -- 1.8.3.1

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