August 2009 - Devel - libvirt List Archives

[libvirt] Project announcement: abiCloud
by Diego Mariño 10 Aug '09

10 Aug '09

Hi all, This is a one-time post to announce a project which supports libvirt for managing virtual machines: abiCloud. AbiCloud is an open source cloud platform manager which allows to easily deploy a private cloud in your datacenter. One of the key differences of AbiCloud is the the web rich interface for managing the infrastructure. You can deploy a new service just dragging and dropping a VM. Currently, we use libvirt for: - Managing (deployment, configuration, administration...) of Xen & KVM virtual machines trought the java binding - Events monitoring trough a C API for openwsman We truly believe that V2V will boost the adoption of new hypervisors from users, and libvirt will have a prominent role in this space. So, we will continue adding support for more hypervisors trough libvirt. homepage: http://community.abiquo.com/display/AbiCloud Features: - Rich interface - User management through ACL - Infrastructure management (from datacenters to virtual machines) - Network management - Appliance repository - Design virtual datacenters Requirements: - Linux/Windows/MacOSX - Any hypervisor supported installed in a node - Sun Java Runtime Environment (JRE) 1.6 Licenses - CPAL 1.0 for the UI - MPL 1.1 for the services Thanks, PS: We will really appreciate if you could add us as in your website a "Third Party Libvirt Application" - Diego Mariño Co-founder & Community Manager +34 636-016-062 +1 408-386-8559 www.abiquo.com

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[libvirt][PATCH] running libvirt on the latest kvm snapshot
by Anton Protopopov 10 Aug '09

10 Aug '09

Hi. Libvirt tryes to extract kvm version from the string "QEMU PC emulator version <major>.<minor>.<micro> (kvm-<version>)..." For examle, # kvm -help | head -1 QEMU PC emulator version 0.10.0 (kvm-85), Copyright (c) 2003-2008 Fabrice Bellard The problem occures if you are trying to run it on the devel version of kvm: # kvm -help | head -1 QEMU PC emulator version 0.10.0 (kvm-devel), Copyright (c) 2003-2008 Fabrice Bellard The virParseNumber() obvioulsy fails on the "devel" string here. I proposeto setup `kvm_version' to 1000 (that's enough, I think) in that case, so all checks, such as if (kvm_version > 74) ... will pass.

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[libvirt] Is it possible to use more then 2 CPUs in the guest?
by Mirko Raasch 09 Aug '09

09 Aug '09

Hi, in my server i use an Intel Quad Core CPU and i want to use in one WindowsXP guest all 4 cores. The device manager shows four CPU (Qemu Virtual CPU version 0.10.5). When i start prime95 or superpi, only 2 of them are in use. CPU-Z shows also 2 Cores, instead of 4 like the device manager. How can i use all four cores in the guest? Greetings

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[libvirt] ABI compliance checker
by Андрей Пономаренко 08 Aug '09

08 Aug '09

Colleagues, I'm from Institute for System Programing of Russian Academy of Sciences and we are developing a free lightweight tool for checking backward/forward binary compatibility of shared C/C++ libraries in OS Linux. It checks interface signatures and data type definitions in two library versions (headers and shared objects) and searches ABI changes that may lead to incompatibility. We have released 1.2 version of this tool and we'd like you to consider its usefulness for your project. The wiki-page with the latest release of binary compatibility checker is http://ispras.linux-foundation.org/index.php/ABI_compliance_checker Andrey Ponomarenko

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[libvirt] Corrected patch
by Jonas Eriksson 07 Aug '09

07 Aug '09

Sorry about the fauly patch, this is the correct one. /Jonas

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[libvirt] [PATCH] Remove unsafe strncpy from esx_vmx.c
by Chris Lalancette 07 Aug '09

07 Aug '09

While trying to remove uses of unsafe strncpy in the tree, I came across a couple of usage in the ESX driver. To my eyes, the snprintf replacements do the same thing in less code, and are also safer. This has been compile tested only. Mattias, is there any reason we can't use these simpler (and safer) string routines? Signed-off-by: Chris Lalancette <clalance(a)redhat.com> Cc: Mattias Bolte <matthias.bolte(a)googlemail.com> --- src/esx/esx_vmx.c | 22 +++++++--------------- 1 files changed, 7 insertions(+), 15 deletions(-) diff --git a/src/esx/esx_vmx.c b/src/esx/esx_vmx.c index af5234e..91a86e2 100644 --- a/src/esx/esx_vmx.c +++ b/src/esx/esx_vmx.c @@ -397,10 +397,7 @@ def->parallels[0]... #define ESX_BUILD_VMX_NAME(_suffix) \ do { \ - strncpy(_suffix##_name, prefix, sizeof (_suffix##_name) - 1); \ - _suffix##_name[sizeof (_suffix##_name) - 1] = '\0'; \ - strncat(_suffix##_name, "."#_suffix, \ - sizeof (_suffix##_name) - 1 - strlen(_suffix##_name)); \ + snprintf(_suffix##_name, sizeof(_suffix##_name), "%s."#_suffix, prefix); \ } while (0) @@ -839,11 +836,9 @@ esxVMX_ParseSCSIController(virConnectPtr conn, virConfPtr conf, int controller, goto failure; } - strncpy(present_name, "scsiX.present", sizeof (virtualDev_name)); - strncpy(virtualDev_name, "scsiX.virtualDev", sizeof (virtualDev_name)); - - present_name[4] = '0' + controller; - virtualDev_name[4] = '0' + controller; + snprintf(present_name, sizeof(present_name), "scsi%d.present", controller); + snprintf(virtualDev_name, sizeof(virtualDev_name), "scsi%d.virtualDev", + controller); if (esxUtil_GetConfigBoolean(conn, conf, present_name, present, 0, 1) < 0) { goto failure; @@ -1333,8 +1328,7 @@ esxVMX_ParseEthernet(virConnectPtr conn, virConfPtr conf, int controller, goto failure; } - strncpy(prefix, "ethernetX", sizeof (prefix)); - prefix[8] = '0' + controller; + snprintf(prefix, sizeof(prefix), "ethernet%d", controller); ESX_BUILD_VMX_NAME(present); ESX_BUILD_VMX_NAME(startConnected); @@ -1514,8 +1508,7 @@ esxVMX_ParseSerial(virConnectPtr conn, virConfPtr conf, int port, goto failure; } - strncpy(prefix, "serialX", sizeof (prefix)); - prefix[6] = '0' + port; + snprintf(prefix, sizeof(prefix), "serial%d", port); ESX_BUILD_VMX_NAME(present); ESX_BUILD_VMX_NAME(startConnected); @@ -1627,8 +1620,7 @@ esxVMX_ParseParallel(virConnectPtr conn, virConfPtr conf, int port, goto failure; } - strncpy(prefix, "parallelX", sizeof (prefix)); - prefix[8] = '0' + port; + snprintf(prefix, sizeof(prefix), "parallel%d", port); ESX_BUILD_VMX_NAME(present); ESX_BUILD_VMX_NAME(startConnected); -- 1.6.0.6

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[libvirt] compiling one driver
by Henrique Teófilo 06 Aug '09

06 Aug '09

Hello, I'm having problems to compile libvirt with opennebula driver. I executed: ./autogen.sh --with-one and got the following message: configure: error: You must install XMLRPC-C >= 1.14.0 to compile libvirt ONE driver but I already have installed libxmlrpc version 1.16.07-1 Where to configure this? I've tried to set the environment variables XMLRPC_CFLAGS and XMLRPC_LIBS, but nothing has changed. So I've tried to change these variables directly on configure script, that was empty, then errors started to appear on make execution: ../src/.libs/libvirt_driver_one.a(libvirt_driver_one_la-one_client.o): In function `c_oneFree': /home/objectweb/git/libvirt/src/./opennebula/one_client.c:207: undefined reference to `xmlrpc_env_clean' /home/objectweb/git/libvirt/src/./opennebula/one_client.c:208: undefined reference to `xmlrpc_client_cleanup' ../src/.libs/libvirt_driver_one.a(libvirt_driver_one_la-one_client.o): In function `c_oneReturnCode': /home/objectweb/git/libvirt/src/./opennebula/one_client.c:49: undefined reference to `xmlrpc_decompose_value' .....etc... What am I doing wrong?? Thanks, Henrique Teófilo

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[libvirt] [PATCH 0/5] Various logging cleanups
by Amy Griffis 06 Aug '09

06 Aug '09

The following patches fixup libvirt's logging code, to hopefully make it a little more consistent and predictable. --- Amy Griffis (5): Tighten libvirt's parsing of logging environment variables Several fixes to libvirtd's log setup Cleanup VIR_LOG_DEBUG parsing in eventtest Consolidate code for parsing the logging environment variables Update logging documentation docs/logging.html.in | 22 +++++++- qemud/qemud.c | 90 +++++++++++++++++--------------- src/libvirt.c | 19 ------- src/libvirt_private.syms | 5 ++ src/logging.c | 129 +++++++++++++++++++++++++++++++++++++++------- src/logging.h | 5 ++ tests/eventtest.c | 12 +--- 7 files changed, 190 insertions(+), 92 deletions(-)

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[libvirt] [PATCH] chown kernel/initrd before spawning qemu
by Mark McLoughlin 06 Aug '09

06 Aug '09

If we're running qemu unprivileged, we need to chown any supplied kernel or initrd before spawning it. * src/qemu_driver.c: rename qemuDomainSetDiskOwnership() to qemuDomainSetFileOwnership(), pass it a path string instead of a disk definition and use it for chowning the kernel/initrd in qemuDomainSetAllDeviceOwnership() --- src/qemu_driver.c | 20 ++++++++++++-------- 1 files changed, 12 insertions(+), 8 deletions(-) diff --git a/src/qemu_driver.c b/src/qemu_driver.c index 412b68d..bd58435 100644 --- a/src/qemu_driver.c +++ b/src/qemu_driver.c @@ -1684,18 +1684,18 @@ static int qemuDomainSetHostdevOwnership(virConnectPtr conn, } -static int qemuDomainSetDiskOwnership(virConnectPtr conn, - virDomainDiskDefPtr def, +static int qemuDomainSetFileOwnership(virConnectPtr conn, + const char *path, uid_t uid, gid_t gid) { - if (!def->src) + if (!path) return 0; - VIR_DEBUG("Setting ownership on %s to %d:%d", def->src, uid, gid); - if (chown(def->src, uid, gid) < 0) { + VIR_DEBUG("Setting ownership on %s to %d:%d", path, uid, gid); + if (chown(path, uid, gid) < 0) { virReportSystemError(conn, errno, _("cannot set ownership on %s"), - def->src); + path); return -1; } return 0; @@ -1725,7 +1725,7 @@ static int qemuDomainSetDeviceOwnership(virConnectPtr conn, (def->data.disk->readonly || def->data.disk->shared)) return 0; - return qemuDomainSetDiskOwnership(conn, def->data.disk, uid, gid); + return qemuDomainSetFileOwnership(conn, def->data.disk->src, uid, gid); case VIR_DOMAIN_DEVICE_HOSTDEV: return qemuDomainSetHostdevOwnership(conn, def->data.hostdev, uid, gid); @@ -1753,12 +1753,16 @@ static int qemuDomainSetAllDeviceOwnership(virConnectPtr conn, uid = restore ? 0 : driver->user; gid = restore ? 0 : driver->group; + if (qemuDomainSetFileOwnership(conn, def->os.kernel, uid, gid) < 0 || + qemuDomainSetFileOwnership(conn, def->os.initrd, uid, gid) < 0) + return -1; + for (i = 0 ; i < def->ndisks ; i++) { if (restore && (def->disks[i]->readonly || def->disks[i]->shared)) continue; - if (qemuDomainSetDiskOwnership(conn, def->disks[i], uid, gid) < 0) + if (qemuDomainSetFileOwnership(conn, def->disks[i]->src, uid, gid) < 0) return -1; } -- 1.6.2.5

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[libvirt] VMware ESX 3/3: Cleanup varaible naming
by Matthias Bolte 06 Aug '09

06 Aug '09

Subject says it all. No functional change included. Matthias

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