April 2018 - Devel - libvirt List Archives

[libvirt] [PATCH v2 0/9] Be consistent with vir*Obj*Remove* APIs
by John Ferlan 10 Apr '18

10 Apr '18

v1: https://www.redhat.com/archives/libvir-list/2018-March/msg01295.html NB: This can wait until 4.2.0 is release, but I figured I'd post this now just to put it on the radar and of course in hopes that someone will look during the idle moment or two before the release. Changes since v1: Short story: Rework the processing of the code Longer story: In his review Erik noted that there's a "fire dance" when processing the vir*Obj*Remove APIs of requiring a locked object upon entry, then adding a reference to that object, unlocking the object, locking the list to which it is contained, and then relocking the object. So it took some time to think about it and during one lengthy meeting today I had the aha moment that the *Remove API's could take the same key (e.g., uuid or name) used to Add or Find the object and use it for the Remove API. This allows the Remove API to not require a locked (and reffed) object upon entry and perform the lock dance, remove the object, and return just just a reffed object forcing the caller to know to Unref object. Instead, let's simplify things. The *Remove API can take the key, Find the object in the list, remove it from the hash tables, and dispose of the object. In essence the antecedent to the Add or AssignDef API's taking a def, creating an object, and adding it the object to the hash table(s). If there are two *Remove threads competing, one will win and perform the removal, while the other will call *Remove, but won't find the object in the hash table, and just return none the wiser. And yes, I think this can also work for the Domain code, but it's going to take a few patch series to get there as that code is not consistent between consumers. John Ferlan (9): secret: Rework LoadAllConfigs secret: Alter virSecretObjListRemove processing interface: Alter virInterfaceObjListRemove processing nodedev: Alter virNodeDeviceObjListRemove processing conf: Clean up virStoragePoolObjLoad error processing storage: Clean up storagePoolCreateXML error processing test: Clean up testStoragePoolCreateXML error processing conf: Move virStoragePoolObjRemove closer to AssignDef storagepool: Alter virStoragePoolObjRemove processing src/conf/virinterfaceobj.c | 26 +++++++---- src/conf/virinterfaceobj.h | 2 +- src/conf/virnodedeviceobj.c | 29 +++++++----- src/conf/virnodedeviceobj.h | 2 +- src/conf/virsecretobj.c | 58 +++++++++++------------- src/conf/virsecretobj.h | 2 +- src/conf/virstorageobj.c | 92 +++++++++++++++++++++++--------------- src/conf/virstorageobj.h | 2 +- src/node_device/node_device_hal.c | 16 ++++--- src/node_device/node_device_udev.c | 13 ++++-- src/secret/secret_driver.c | 15 ++++--- src/storage/storage_driver.c | 65 +++++++++++++++------------ src/test/test_driver.c | 78 +++++++++++++++++--------------- 13 files changed, 225 insertions(+), 175 deletions(-) -- 2.13.6

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[libvirt] [PATCH] qemuDomainNamespaceSetupDisk: Fix const correctness
by Michal Privoznik 10 Apr '18

10 Apr '18

The array of strings we are building is indeed array of const strings. We are not STRDUP()-ing them nor FREE()-ing them. Signed-off-by: Michal Privoznik <mprivozn(a)redhat.com> --- src/qemu/qemu_domain.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/qemu/qemu_domain.c b/src/qemu/qemu_domain.c index f03aa03e8a..0486c5527d 100644 --- a/src/qemu/qemu_domain.c +++ b/src/qemu/qemu_domain.c @@ -11196,7 +11196,7 @@ qemuDomainNamespaceSetupDisk(virDomainObjPtr vm, virStorageSourcePtr src) { virStorageSourcePtr next; - char **paths = NULL; + const char **paths = NULL; size_t npaths = 0; int ret = -1; @@ -11214,7 +11214,7 @@ qemuDomainNamespaceSetupDisk(virDomainObjPtr vm, goto cleanup; } - if (qemuDomainNamespaceMknodPaths(vm, (const char **)paths, npaths) < 0) + if (qemuDomainNamespaceMknodPaths(vm, paths, npaths) < 0) return -1; ret = 0; -- 2.16.1

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[libvirt] [jenkins-ci PATCH 0/2] jobs: Simplify Python jobs
by Andrea Bolognani 10 Apr '18

10 Apr '18

By reverting a bunch of semi-recent changes. Requires https://www.redhat.com/archives/libvir-list/2018-April/msg00356.html Andrea Bolognani (2): jobs: Don't set $PYTHONPATH for python-distutil jobs jobs: Build using $PYTHON jobs/python-distutils.yaml | 29 +++++++++++++---------------- projects/libvirt-python.yaml | 29 ++--------------------------- projects/virt-manager.yaml | 11 ++++------- 3 files changed, 19 insertions(+), 50 deletions(-) -- 2.14.3

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[libvirt] [jenkins-ci PATCH 0/2] Add libvirt-dbus project
by Andrea Bolognani 10 Apr '18

10 Apr '18

Andrea Bolognani (2): guests: Add libvirt-dbus project projects: Add libvirt-dbus project guests/host_vars/libvirt-centos-7/main.yml | 1 + guests/host_vars/libvirt-debian-9/main.yml | 1 + guests/host_vars/libvirt-debian-sid/main.yml | 1 + guests/host_vars/libvirt-fedora-26/main.yml | 1 + guests/host_vars/libvirt-fedora-27/main.yml | 1 + guests/host_vars/libvirt-fedora-rawhide/main.yml | 1 + guests/host_vars/libvirt-freebsd-10/main.yml | 1 + guests/host_vars/libvirt-freebsd-11/main.yml | 1 + guests/host_vars/libvirt-freebsd-current/main.yml | 1 + guests/host_vars/libvirt-ubuntu-16/main.yml | 1 + guests/vars/mappings.yml | 10 ++++++++ guests/vars/projects/libvirt-dbus.yml | 6 +++++ projects/libvirt-dbus.yaml | 31 +++++++++++++++++++++++ 13 files changed, 57 insertions(+) create mode 100644 guests/vars/projects/libvirt-dbus.yml create mode 100644 projects/libvirt-dbus.yaml -- 2.14.3

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[libvirt] [PATCH 0/6] Add support for TPM emulator and CRB interface
by Stefan Berger 09 Apr '18

09 Apr '18

This series of patches add support for the new TPM CRB interface in QEMU that will become available with QEMU 2.12. The rest of the patches add support for the TPM emulator backend that is available in QEMU and based on swtpm + libtpms. Here I hope for feedback for how to organize the layout of directories, files, and UnixIO socket files that QEMU needs to talk to 'swtpm'. Stefan Stefan Berger (6): tpm: Enable TPM CRB interface tpm: Add support for external swtpm TPM emulator tpm: Label the external swtpm with SELinux labels tpm: Handle TPM emulator device reconfigurations tpm: Add support for choosing emulation of a TPM 2 tpm: Add swtpm to emulator cgroup docs/formatdomain.html.in | 47 ++ docs/schemas/domaincommon.rng | 23 +- src/conf/domain_audit.c | 2 + src/conf/domain_conf.c | 131 ++++- src/conf/domain_conf.h | 19 + src/libvirt_private.syms | 8 + src/qemu/Makefile.inc.am | 2 + src/qemu/libvirtd_qemu.aug | 3 + src/qemu/qemu.conf | 7 + src/qemu/qemu_capabilities.c | 10 + src/qemu/qemu_capabilities.h | 2 + src/qemu/qemu_cgroup.c | 54 ++ src/qemu/qemu_cgroup.h | 1 + src/qemu/qemu_command.c | 52 +- src/qemu/qemu_conf.c | 11 +- src/qemu/qemu_conf.h | 2 + src/qemu/qemu_domain.c | 2 + src/qemu/qemu_driver.c | 16 +- src/qemu/qemu_extdevice.c | 245 +++++++++ src/qemu/qemu_extdevice.h | 36 ++ src/qemu/qemu_process.c | 12 + src/qemu/test_libvirtd_qemu.aug.in | 1 + src/security/security_dac.c | 6 + src/security/security_driver.h | 5 +- src/security/security_manager.c | 15 + src/security/security_manager.h | 3 + src/security/security_selinux.c | 101 ++++ src/security/security_stack.c | 19 + src/util/vircgroup.c | 42 ++ src/util/vircgroup.h | 1 + src/util/virfile.c | 12 + src/util/virfile.h | 2 +- src/util/virtpm.c | 550 +++++++++++++++++++++ src/util/virtpm.h | 14 + tests/qemucapabilitiesdata/caps_2.11.0.s390x.xml | 1 + tests/qemucapabilitiesdata/caps_2.12.0.aarch64.xml | 1 + tests/qemucapabilitiesdata/caps_2.12.0.ppc64.xml | 1 + tests/qemucapabilitiesdata/caps_2.12.0.s390x.xml | 1 + tests/qemucapabilitiesdata/caps_2.12.0.x86_64.xml | 2 + tests/qemuxml2argvdata/tpm-emulator-tpm2.args | 24 + tests/qemuxml2argvdata/tpm-emulator-tpm2.xml | 30 ++ tests/qemuxml2argvdata/tpm-emulator.args | 24 + tests/qemuxml2argvdata/tpm-emulator.xml | 30 ++ tests/qemuxml2argvdata/tpm-passthrough-crb.args | 24 + tests/qemuxml2argvdata/tpm-passthrough-crb.xml | 32 ++ tests/qemuxml2argvmock.c | 2 + tests/qemuxml2argvtest.c | 23 + tests/qemuxml2xmloutdata/tpm-emulator-tpm2.xml | 34 ++ tests/qemuxml2xmloutdata/tpm-emulator.xml | 34 ++ tests/qemuxml2xmloutdata/tpm-passthrough-crb.xml | 36 ++ tests/qemuxml2xmltest.c | 1 + 51 files changed, 1736 insertions(+), 20 deletions(-) create mode 100644 src/qemu/qemu_extdevice.c create mode 100644 src/qemu/qemu_extdevice.h create mode 100644 tests/qemuxml2argvdata/tpm-emulator-tpm2.args create mode 100644 tests/qemuxml2argvdata/tpm-emulator-tpm2.xml create mode 100644 tests/qemuxml2argvdata/tpm-emulator.args create mode 100644 tests/qemuxml2argvdata/tpm-emulator.xml create mode 100644 tests/qemuxml2argvdata/tpm-passthrough-crb.args create mode 100644 tests/qemuxml2argvdata/tpm-passthrough-crb.xml create mode 100644 tests/qemuxml2xmloutdata/tpm-emulator-tpm2.xml create mode 100644 tests/qemuxml2xmloutdata/tpm-emulator.xml create mode 100644 tests/qemuxml2xmloutdata/tpm-passthrough-crb.xml -- 2.5.5

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[libvirt] [PATCH v1 0/2] Fix qcow2 fully allocated filesystem objects.
by Wim Ten Have 09 Apr '18

09 Apr '18

From: Wim ten Have <wim.ten.have(a)oracle.com> When tools like virt-install request to create a fully allocated filesystem object storage by setting the parameter sparse=no, libvirt doesn't allow that to happen for qcow2 formatted files. Regardless of its XML instuction request libvirt always targets its filesystem object storage with preallocation=metadata if format=qcow2 is in effect. This results in sparse files which could cause problems since total image storage potentially can overrun actual filesystem available space. (NOTE: This is a RESEND holding corrected cover letter and commit messages / Subject headers.) Wim ten Have (2): storage: extend preallocation flags support for qemu-img tests: add qemu-img test for preallocation=falloc include/libvirt/libvirt-storage.h | 5 ++++- src/storage/storage_util.c | 21 +++++++++++++++++---- .../qcow2-nocapacity-convert-prealloc.argv | 2 +- 3 files changed, 22 insertions(+), 6 deletions(-) -- 2.14.3

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[libvirt] Race condition between qemuDomainCreate and qemuDomainDestroy
by Marc Hartmayer 09 Apr '18

09 Apr '18

Hi, there is a race condition between 'qemuDomainCreate' and 'qemuDomainDestroy' causing a NULL pointer segmentation fault when accessing priv->monConfig. The race condition can be easily reproduced using gdb. (gdb) set non-stop on # set breakpoint on line 'mon = qemuMonitorOpen(vm, …)' (gdb) b qemu_process.c:1799 # Actually, this second breakpoint is optional but it’s good to see where priv->monConfig is set to NULL # set breakpoint on line priv->monConfig = NULL; (gdb) b qemu_process.c:6589 (gdb) run # continue all threads - just for the case we hit a breakpoint already (gdb) c -a Now start a domain (that is using QEMU) $ virsh start domain The first breakpoint will be hit. Now run in a second shell $ virsh destroy domain The second breakpoint will be hit. Continue the thread where the second breakpoint was hit (for this example this is thread 4) (gdb) thread apply 4 continue Now continue the thread where the first breakpoint was hit. => Segmentation fault because of a NULL pointer dereference at config->value Since I'm not very familiar with that part of the code, I wanted to ask for your advice. Thanks in advance. Beste Grüße / Kind regards Marc Hartmayer IBM Deutschland Research & Development GmbH Vorsitzende des Aufsichtsrats: Martina Koederitz Geschäftsführung: Dirk Wittkopp Sitz der Gesellschaft: Böblingen Registergericht: Amtsgericht Stuttgart, HRB 243294

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[libvirt] [dbus PATCH] APIs should appear in aplhabetical order in all files.
by Katerina Koukiou 09 Apr '18

09 Apr '18

In C and XML files the order is: 1) properties 2) methods 3) signals All of them sorted in their category alphabetically. Signed-off-by: Katerina Koukiou <kkoukiou(a)redhat.com> --- data/org.libvirt.Connect.xml | 12 +-- data/org.libvirt.Domain.xml | 54 ++++++------ src/connect.c | 2 +- src/domain.c | 200 +++++++++++++++++++++---------------------- 4 files changed, 134 insertions(+), 134 deletions(-) diff --git a/data/org.libvirt.Connect.xml b/data/org.libvirt.Connect.xml index 5b49ed9..55260cc 100644 --- a/data/org.libvirt.Connect.xml +++ b/data/org.libvirt.Connect.xml @@ -25,12 +25,6 @@ <annotation name="org.gtk.GDBus.DocString" value="See https://libvirt.org/html/libvirt-libvirt-host.html#virConnectGetVersion"/> </property> - <method name="ListDomains"> - <annotation name="org.gtk.GDBus.DocString" - value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virConnectListAllDomai…"/> - <arg name="flags" type="u" direction="in"/> - <arg name="domains" type="ao" direction="out"/> - </method> <method name="DomainCreateXML"> <annotation name="org.gtk.GDBus.DocString" value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainCreateXML"/> @@ -73,6 +67,12 @@ <arg name="flags" type="u" direction="in"/> <arg name="sysinfo" type="s" direction="out"/> </method> + <method name="ListDomains"> + <annotation name="org.gtk.GDBus.DocString" + value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virConnectListAllDomai…"/> + <arg name="flags" type="u" direction="in"/> + <arg name="domains" type="ao" direction="out"/> + </method> <method name="ListNetworks"> <annotation name="org.gtk.GDBus.DocString" value="See https://libvirt.org/html/libvirt-libvirt-network.html#virConnectListAllNetw…"/> diff --git a/data/org.libvirt.Domain.xml b/data/org.libvirt.Domain.xml index 7679018..78378bb 100644 --- a/data/org.libvirt.Domain.xml +++ b/data/org.libvirt.Domain.xml @@ -3,25 +3,25 @@ <node name="/org/libvirt/domain"> <interface name="org.libvirt.Domain"> - <property name="Name" type="s" access="read"> + <property name="Active" type="b" access="read"> <annotation name="org.gtk.GDBus.DocString" - value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainGetName"/> + value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainIsActive"/> </property> - <property name="UUID" type="s" access="read"> + <property name="Autostart" type="b" access="read"> <annotation name="org.gtk.GDBus.DocString" - value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainGetUUIDString"/> + value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainGetAutostart"/> </property> <property name="Id" type="u" access="read"> <annotation name="org.gtk.GDBus.DocString" value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainGetID"/> </property> - <property name="OSType" type="s" access="read"> + <property name="Name" type="s" access="read"> <annotation name="org.gtk.GDBus.DocString" - value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainGetOSType"/> + value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainGetName"/> </property> - <property name="Active" type="b" access="read"> + <property name="OSType" type="s" access="read"> <annotation name="org.gtk.GDBus.DocString" - value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainIsActive"/> + value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainGetOSType"/> </property> <property name="Persistent" type="b" access="read"> <annotation name="org.gtk.GDBus.DocString" @@ -31,21 +31,19 @@ <annotation name="org.gtk.GDBus.DocString" value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainGetState"/> </property> - <property name="Autostart" type="b" access="read"> + <property name="UUID" type="s" access="read"> <annotation name="org.gtk.GDBus.DocString" - value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainGetAutostart"/> + value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainGetUUIDString"/> </property> - <method name="GetVcpus"> + <method name="Create"> <annotation name="org.gtk.GDBus.DocString" - value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainGetVcpusFlags"/> + value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainCreateWithFla…"/> <arg name="flags" type="u" direction="in"/> - <arg name="vcpus" type="u" direction="out"/> </method> - <method name="GetXMLDesc"> + <method name="Destroy"> <annotation name="org.gtk.GDBus.DocString" - value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainGetXMLDesc"/> + value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainDestroyFlags"/> <arg name="flags" type="u" direction="in"/> - <arg name="xml" type="s" direction="out"/> </method> <method name="GetStats"> <annotation name="org.gtk.GDBus.DocString" @@ -54,15 +52,17 @@ <arg name="flags" type="u" direction="in"/> <arg name="records" type="a{sv}" direction="out"/> </method> - <method name="Shutdown"> + <method name="GetVcpus"> <annotation name="org.gtk.GDBus.DocString" - value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainShutdownFlags"/> + value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainGetVcpusFlags"/> <arg name="flags" type="u" direction="in"/> + <arg name="vcpus" type="u" direction="out"/> </method> - <method name="Destroy"> + <method name="GetXMLDesc"> <annotation name="org.gtk.GDBus.DocString" - value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainDestroyFlags"/> + value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainGetXMLDesc"/> <arg name="flags" type="u" direction="in"/> + <arg name="xml" type="s" direction="out"/> </method> <method name="Reboot"> <annotation name="org.gtk.GDBus.DocString" @@ -74,23 +74,23 @@ value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainReset"/> <arg name="flags" type="u" direction="in"/> </method> - <method name="Create"> + <method name="Resume"> <annotation name="org.gtk.GDBus.DocString" - value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainCreateWithFla…"/> - <arg name="flags" type="u" direction="in"/> + value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainResume"/> </method> - <method name="Undefine"> + <method name="Shutdown"> <annotation name="org.gtk.GDBus.DocString" - value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainUndefineFlags"/> + value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainShutdownFlags"/> <arg name="flags" type="u" direction="in"/> </method> <method name="Suspend"> <annotation name="org.gtk.GDBus.DocString" value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainSuspend"/> </method> - <method name="Resume"> + <method name="Undefine"> <annotation name="org.gtk.GDBus.DocString" - value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainResume"/> + value="See https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainUndefineFlags"/> + <arg name="flags" type="u" direction="in"/> </method> <signal name="DeviceAdded"> <annotation name="org.gtk.GDBus.DocString" diff --git a/src/connect.c b/src/connect.c index 9820de5..d18f77d 100644 --- a/src/connect.c +++ b/src/connect.c @@ -575,7 +575,6 @@ static virtDBusGDBusPropertyTable virtDBusConnectPropertyTable[] = { }; static virtDBusGDBusMethodTable virtDBusConnectMethodTable[] = { - { "ListDomains", virtDBusConnectListDomains }, { "DomainCreateXML", virtDBusConnectDomainCreateXML }, { "DomainDefineXML", virtDBusConnectDomainDefineXML }, { "DomainLookupByID", virtDBusConnectDomainLookupByID }, @@ -583,6 +582,7 @@ static virtDBusGDBusMethodTable virtDBusConnectMethodTable[] = { { "DomainLookupByUUID", virtDBusConnectDomainLookupByUUID }, { "GetCapabilities", virtDBusConnectGetCapabilities }, { "GetSysinfo", virtDBusConnectGetSysinfo }, + { "ListDomains", virtDBusConnectListDomains }, { "ListNetworks", virtDBusConnectListNetworks }, { "NetworkCreateXML", virtDBusConnectNetworkCreateXML }, { "NetworkDefineXML", virtDBusConnectNetworkDefineXML }, diff --git a/src/domain.c b/src/domain.c index 0066788..b3b3630 100644 --- a/src/domain.c +++ b/src/domain.c @@ -25,44 +25,44 @@ virtDBusDomainGetVirDomain(virtDBusConnect *connect, } static void -virtDBusDomainGetName(const gchar *objectPath, - gpointer userData, - GVariant **value, - GError **error) +virtDBusDomainGetActive(const gchar *objectPath, + gpointer userData, + GVariant **value, + GError **error) { virtDBusConnect *connect = userData; g_autoptr(virDomain) domain = NULL; - const gchar *name; + gint active; domain = virtDBusDomainGetVirDomain(connect, objectPath, error); if (!domain) return; - name = virDomainGetName(domain); - if (!name) + active = virDomainIsActive(domain); + if (active < 0) return virtDBusUtilSetLastVirtError(error); - *value = g_variant_new("s", name); + *value = g_variant_new("b", !!active); } static void -virtDBusDomainGetUUID(const gchar *objectPath, - gpointer userData, - GVariant **value, - GError **error) +virtDBusDomainGetAutostart(const gchar *objectPath, + gpointer userData, + GVariant **value, + GError **error) { virtDBusConnect *connect = userData; g_autoptr(virDomain) domain = NULL; - gchar uuid[VIR_UUID_STRING_BUFLEN] = ""; + gint autostart = 0; domain = virtDBusDomainGetVirDomain(connect, objectPath, error); if (!domain) return; - if (virDomainGetUUIDString(domain, uuid) < 0) + if (virDomainGetAutostart(domain, &autostart) < 0) return virtDBusUtilSetLastVirtError(error); - *value = g_variant_new("s", uuid); + *value = g_variant_new("b", !!autostart); } static void @@ -87,45 +87,45 @@ virtDBusDomainGetId(const gchar *objectPath, } static void -virtDBusDomainGetOsType(const gchar *objectPath, - gpointer userData, - GVariant **value, - GError **error) +virtDBusDomainGetName(const gchar *objectPath, + gpointer userData, + GVariant **value, + GError **error) { virtDBusConnect *connect = userData; g_autoptr(virDomain) domain = NULL; - g_autofree gchar *osType = NULL; + const gchar *name; domain = virtDBusDomainGetVirDomain(connect, objectPath, error); if (!domain) return; - osType = virDomainGetOSType(domain); - if (!osType) + name = virDomainGetName(domain); + if (!name) return virtDBusUtilSetLastVirtError(error); - *value = g_variant_new("s", osType); + *value = g_variant_new("s", name); } static void -virtDBusDomainGetActive(const gchar *objectPath, +virtDBusDomainGetOsType(const gchar *objectPath, gpointer userData, GVariant **value, GError **error) { virtDBusConnect *connect = userData; g_autoptr(virDomain) domain = NULL; - gint active; + g_autofree gchar *osType = NULL; domain = virtDBusDomainGetVirDomain(connect, objectPath, error); if (!domain) return; - active = virDomainIsActive(domain); - if (active < 0) + osType = virDomainGetOSType(domain); + if (!osType) return virtDBusUtilSetLastVirtError(error); - *value = g_variant_new("b", !!active); + *value = g_variant_new("s", osType); } static void @@ -199,38 +199,36 @@ virtDBusDomainGetState(const gchar *objectPath, } static void -virtDBusDomainGetAutostart(const gchar *objectPath, - gpointer userData, - GVariant **value, - GError **error) +virtDBusDomainGetUUID(const gchar *objectPath, + gpointer userData, + GVariant **value, + GError **error) { virtDBusConnect *connect = userData; g_autoptr(virDomain) domain = NULL; - gint autostart = 0; + gchar uuid[VIR_UUID_STRING_BUFLEN] = ""; domain = virtDBusDomainGetVirDomain(connect, objectPath, error); if (!domain) return; - if (virDomainGetAutostart(domain, &autostart) < 0) + if (virDomainGetUUIDString(domain, uuid) < 0) return virtDBusUtilSetLastVirtError(error); - *value = g_variant_new("b", !!autostart); + *value = g_variant_new("s", uuid); } static void -virtDBusDomainGetVcpus(GVariant *inArgs, - GUnixFDList *inFDs G_GNUC_UNUSED, - const gchar *objectPath, - gpointer userData, - GVariant **outArgs, - GUnixFDList **outFDs G_GNUC_UNUSED, - GError **error) - +virtDBusDomainCreate(GVariant *inArgs, + GUnixFDList *inFDs G_GNUC_UNUSED, + const gchar *objectPath, + gpointer userData, + GVariant **outArgs G_GNUC_UNUSED, + GUnixFDList **outFDs G_GNUC_UNUSED, + GError **error) { virtDBusConnect *connect = userData; g_autoptr(virDomain) domain = NULL; - gint vcpus; guint flags; g_variant_get(inArgs, "(u)", &flags); @@ -239,25 +237,21 @@ virtDBusDomainGetVcpus(GVariant *inArgs, if (!domain) return; - vcpus = virDomainGetVcpusFlags(domain, flags); - if (vcpus < 0) - return virtDBusUtilSetLastVirtError(error); - - *outArgs = g_variant_new("(u)", vcpus); + if (virDomainCreateWithFlags(domain, flags) < 0) + virtDBusUtilSetLastVirtError(error); } static void -virtDBusDomainGetXMLDesc(GVariant *inArgs, - GUnixFDList *inFDs G_GNUC_UNUSED, - const gchar *objectPath, - gpointer userData, - GVariant **outArgs, - GUnixFDList **outFDs G_GNUC_UNUSED, - GError **error) +virtDBusDomainDestroy(GVariant *inArgs, + GUnixFDList *inFDs G_GNUC_UNUSED, + const gchar *objectPath, + gpointer userData, + GVariant **outArgs G_GNUC_UNUSED, + GUnixFDList **outFDs G_GNUC_UNUSED, + GError **error) { virtDBusConnect *connect = userData; g_autoptr(virDomain) domain = NULL; - g_autofree gchar *xml = NULL; guint flags; g_variant_get(inArgs, "(u)", &flags); @@ -266,11 +260,8 @@ virtDBusDomainGetXMLDesc(GVariant *inArgs, if (!domain) return; - xml = virDomainGetXMLDesc(domain, flags); - if (!xml) - return virtDBusUtilSetLastVirtError(error); - - *outArgs = g_variant_new("(s)", xml); + if (virDomainDestroyFlags(domain, flags) < 0) + virtDBusUtilSetLastVirtError(error); } G_DEFINE_AUTOPTR_CLEANUP_FUNC(virDomainStatsRecordPtr, virDomainStatsRecordListFree); @@ -311,16 +302,18 @@ virtDBusDomainGetStats(GVariant *inArgs, } static void -virtDBusDomainShutdown(GVariant *inArgs, +virtDBusDomainGetVcpus(GVariant *inArgs, GUnixFDList *inFDs G_GNUC_UNUSED, const gchar *objectPath, gpointer userData, - GVariant **outArgs G_GNUC_UNUSED, + GVariant **outArgs, GUnixFDList **outFDs G_GNUC_UNUSED, GError **error) + { virtDBusConnect *connect = userData; g_autoptr(virDomain) domain = NULL; + gint vcpus; guint flags; g_variant_get(inArgs, "(u)", &flags); @@ -329,21 +322,25 @@ virtDBusDomainShutdown(GVariant *inArgs, if (!domain) return; - if (virDomainShutdownFlags(domain, flags) < 0) - virtDBusUtilSetLastVirtError(error); + vcpus = virDomainGetVcpusFlags(domain, flags); + if (vcpus < 0) + return virtDBusUtilSetLastVirtError(error); + + *outArgs = g_variant_new("(u)", vcpus); } static void -virtDBusDomainDestroy(GVariant *inArgs, - GUnixFDList *inFDs G_GNUC_UNUSED, - const gchar *objectPath, - gpointer userData, - GVariant **outArgs G_GNUC_UNUSED, - GUnixFDList **outFDs G_GNUC_UNUSED, - GError **error) +virtDBusDomainGetXMLDesc(GVariant *inArgs, + GUnixFDList *inFDs G_GNUC_UNUSED, + const gchar *objectPath, + gpointer userData, + GVariant **outArgs, + GUnixFDList **outFDs G_GNUC_UNUSED, + GError **error) { virtDBusConnect *connect = userData; g_autoptr(virDomain) domain = NULL; + g_autofree gchar *xml = NULL; guint flags; g_variant_get(inArgs, "(u)", &flags); @@ -352,8 +349,11 @@ virtDBusDomainDestroy(GVariant *inArgs, if (!domain) return; - if (virDomainDestroyFlags(domain, flags) < 0) - virtDBusUtilSetLastVirtError(error); + xml = virDomainGetXMLDesc(domain, flags); + if (!xml) + return virtDBusUtilSetLastVirtError(error); + + *outArgs = g_variant_new("(s)", xml); } static void @@ -405,7 +405,7 @@ virtDBusDomainReset(GVariant *inArgs, } static void -virtDBusDomainCreate(GVariant *inArgs, +virtDBusDomainResume(GVariant *inArgs G_GNUC_UNUSED, GUnixFDList *inFDs G_GNUC_UNUSED, const gchar *objectPath, gpointer userData, @@ -415,20 +415,17 @@ virtDBusDomainCreate(GVariant *inArgs, { virtDBusConnect *connect = userData; g_autoptr(virDomain) domain = NULL; - guint flags; - - g_variant_get(inArgs, "(u)", &flags); domain = virtDBusDomainGetVirDomain(connect, objectPath, error); if (!domain) return; - if (virDomainCreateWithFlags(domain, flags) < 0) + if (virDomainResume(domain) < 0) virtDBusUtilSetLastVirtError(error); } static void -virtDBusDomainUndefine(GVariant *inArgs, +virtDBusDomainShutdown(GVariant *inArgs, GUnixFDList *inFDs G_GNUC_UNUSED, const gchar *objectPath, gpointer userData, @@ -446,7 +443,7 @@ virtDBusDomainUndefine(GVariant *inArgs, if (!domain) return; - if (virDomainUndefineFlags(domain, flags) < 0) + if (virDomainShutdownFlags(domain, flags) < 0) virtDBusUtilSetLastVirtError(error); } @@ -471,49 +468,52 @@ virtDBusDomainSuspend(GVariant *inArgs G_GNUC_UNUSED, } static void -virtDBusDomainResume(GVariant *inArgs G_GNUC_UNUSED, - GUnixFDList *inFDs G_GNUC_UNUSED, - const gchar *objectPath, - gpointer userData, - GVariant **outArgs G_GNUC_UNUSED, - GUnixFDList **outFDs G_GNUC_UNUSED, - GError **error) +virtDBusDomainUndefine(GVariant *inArgs, + GUnixFDList *inFDs G_GNUC_UNUSED, + const gchar *objectPath, + gpointer userData, + GVariant **outArgs G_GNUC_UNUSED, + GUnixFDList **outFDs G_GNUC_UNUSED, + GError **error) { virtDBusConnect *connect = userData; g_autoptr(virDomain) domain = NULL; + guint flags; + + g_variant_get(inArgs, "(u)", &flags); domain = virtDBusDomainGetVirDomain(connect, objectPath, error); if (!domain) return; - if (virDomainResume(domain) < 0) + if (virDomainUndefineFlags(domain, flags) < 0) virtDBusUtilSetLastVirtError(error); } static virtDBusGDBusPropertyTable virtDBusDomainPropertyTable[] = { - { "Name", virtDBusDomainGetName, NULL }, - { "UUID", virtDBusDomainGetUUID, NULL }, + { "Active", virtDBusDomainGetActive, NULL }, + { "Autostart", virtDBusDomainGetAutostart, NULL }, { "Id", virtDBusDomainGetId, NULL }, + { "Name", virtDBusDomainGetName, NULL }, { "OSType", virtDBusDomainGetOsType, NULL }, - { "Active", virtDBusDomainGetActive, NULL }, { "Persistent", virtDBusDomainGetPersistent, NULL }, { "State", virtDBusDomainGetState, NULL }, - { "Autostart", virtDBusDomainGetAutostart, NULL }, + { "UUID", virtDBusDomainGetUUID, NULL }, { 0 } }; static virtDBusGDBusMethodTable virtDBusDomainMethodTable[] = { + { "Create", virtDBusDomainCreate }, + { "Destroy", virtDBusDomainDestroy }, + { "GetStats", virtDBusDomainGetStats }, { "GetVcpus", virtDBusDomainGetVcpus }, { "GetXMLDesc", virtDBusDomainGetXMLDesc }, - { "GetStats", virtDBusDomainGetStats }, - { "Shutdown", virtDBusDomainShutdown }, - { "Destroy", virtDBusDomainDestroy }, { "Reboot", virtDBusDomainReboot }, { "Reset", virtDBusDomainReset }, - { "Create", virtDBusDomainCreate }, - { "Undefine", virtDBusDomainUndefine }, - { "Suspend", virtDBusDomainSuspend }, { "Resume", virtDBusDomainResume }, + { "Shutdown", virtDBusDomainShutdown }, + { "Suspend", virtDBusDomainSuspend }, + { "Undefine", virtDBusDomainUndefine }, { 0 } }; -- 2.15.0

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[libvirt] [RFC] Defining firmware (OVMF, et al) metadata format & file
by Kashyap Chamarthy 09 Apr '18

09 Apr '18

Problem background ------------------ The various OVMF binary file names and paths are slightly different[+] for each Linux distribution. And each high-level management tool (libguestfs, oVirt, `virt-manager` and OpenStack Nova) is inventing its own approach to detect and configure the said OVMF files. This email thread is about arriving at some common understanding to make this a bit more "unified" by addressing these needs in QEMU and libvirt. Suggested approach ------------------ Based on an upstream discussion on 'virt-tools'[1] mailing list and some Bugzillas, Gerd Hoffmann, Laszlo Ersek and Dan Berrangé had a suggestion to define a firmware metadata format and file (example in [1]): - For each firmware file we need a metadata file in a well defined location, e.g. /usr/share/qemu/bios/ that lists stuff like: - Path to the firmware binary - Path to the pre-built OVMF 'vars' file (if any) - Support architectures - associated QEMU feature flags (Secure Boot) - If the binary provides / requires SMM (System Management Mode) Essentially, QEMU would define[*] the file format, and provide metadata files from any ROMs it ships directly. If Linux distributions / vendors ship extra ROMs like OVMF, etc then they should provide suitable metadata files. - Libvirt can read these metadata files and then pick the correct firmware binary based on the settings for the guest. - Management tools can then wire up the libvirt-based OVMF SB (Secure Boot) configuration. [*] Open question: Who, between QEMU and libvirt, should define the said firmware metadata format and file? References ---------- [1] A past proposal from Gerd to create a sort of a "firmware registry" https://www.redhat.com/archives/virt-tools-list/2014-September/msg00145.html [2] A libvirt upstream RFE bug requesting to simplify handling UEFI https://bugzilla.redhat.com/show_bug.cgi?id=1295146 -- RFE: provide a bios=uefi XML convenience option [3] DanPB wrote a PoC in libvirt: https://www.redhat.com/archives/libvir-list/2016-October/msg00045.html -- [libvirt] [PATCH 0/3] Make UEFI firmware config simpler But later came to the conclusion that it is flawed, and said we go the route of "Suggested approach" mentioned earlier). [*] OVMF package path names for different distributions ------------------------------------------------------- - Debian (https://packages.debian.org/stretch/all/ovmf/filelist) - /usr/share/OVMF/OVMF_CODE.fd - /usr/share/OVMF/OVMF_VARS.fd - OpenSUSE (package: "qemu-ovmf-x86_64" -- and it has *35* files in that package): - /usr/share/qemu/ovmf-x86_64-opensuse-code.bin - /usr/share/qemu/ovmf-x86_64-opensuse-vars.bin [...] Their RPM spec file gives some hints (where all the files with 'ms' means signed with MS keys; the files with 'opensuse-4096' means signed with OpenSUSE 4096 bit CA keys -- I think that's one of the points of Secure Boot, to let people have control over system keys): https://build.opensuse.org/package/view_file/openSUSE:Factory/ovmf/ovmf.spe… - Fedora 27 (package: "edk2-ovmf", x86_64): - /usr/share/edk2/ovmf/OVMF_CODE.fd - /usr/share/edk2/ovmf/OVMF_CODE.secboot.fd - /usr/share/edk2/ovmf/OVMF_VARS.fd - RHEL-7.4 (package: "OVMF", x86_64): - /usr/share/OVMF/OVMF_CODE.secboot.fd - /usr/share/OVMF/OVMF_VARS.fd - Gerd's firmware repo from Git: - /usr/share/edk2.git/ovmf-x64/OVMF_VARS-need-smm.fd - /usr/share/edk2.git/ovmf-x64/OVMF_CODE-pure-efi.fd -- /kashyap

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[libvirt] [PATCH 0/4] Fix a race to using monConfig
by John Ferlan 09 Apr '18

09 Apr '18

As reported by Marc Hartmayer <mhartmay(a)linux.vnet.ibm.com>: https://www.redhat.com/archives/libvir-list/2018-March/msg01156.html there is a race to using the priv->monConfig between the Create and destroy domain processing. The patches describe the steps taken to resolve the issue. John Ferlan (4): conf: Use virDomainChrSourceDefNew for vhostuser qemu: Use virDomainChrSourceDefNew for monConfig conf: Convert virDomainChrSourceDefNew to return object qemu: Obtain reference on monConfig src/conf/domain_conf.c | 37 ++++++++++++++++++++++++++++++++----- src/conf/domain_conf.h | 3 +++ src/libvirt_private.syms | 1 + src/qemu/qemu_domain.c | 2 +- src/qemu/qemu_process.c | 8 ++++++-- 5 files changed, 43 insertions(+), 8 deletions(-) -- 2.13.6

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