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[libvirt-users] How to obtain guest's monthly internet bandwidth usage?
by Tony Huang 21 Jun '12

21 Jun '12

Hello, I want to monitor the outgoing and incoming monthly internet usage. How can I do that? -- Tony

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[libvirt-users] update virDomainDef with xml config
by xuanmao_001 20 Jun '12

20 Jun '12

Libvirt Version: 0.9.8 Hi: I added a new api for qemu_driver. and both added libvirt.c and remote. I tested it and it worked well. the function of this new api was add a new field in xml config of domain. (I added it like qemudDomainSetMemoryFlags)at the same time, I added a new member to struct virDomainDef. then I tested xml config converted to virDomaindef and virDomainDef converted to xml config both well(just tested this new api). But there was a problem, if I change the memory size or cpu number then apply it with virtManager. the xml config was changed. but there is no field in the xml what I added. I guest the virDomainDef member in virDomainObjPtr wasn't update. I have no idea, can you give me some ideas? thanks! here is my code in qemu_driver.c: static int qemudDomainSetCustomOptions(virDomainPtr dom, char *opt) { struct qemud_driver *driver = dom->conn->privateData; virDomainObjPtr vm; virDomainDefPtr persistentDef = NULL; int ret = -1; qemuDriverLock(driver); vm = virDomainFindByUUID(&driver->domains, dom->uuid); qemuDriverUnlock(driver); if (!vm) { char uuidstr[VIR_UUID_STRING_BUFLEN]; virUUIDFormat(dom->uuid, uuidstr); qemuReportError(VIR_ERR_NO_DOMAIN, _("no domain with matching uuid '%s'"), uuidstr); goto cleanup; } if (qemuDomainObjBeginJob(driver, vm, QEMU_JOB_MODIFY) < 0) goto cleanup; if (!vm->persistent) { qemuReportError(VIR_ERR_OPERATION_INVALID, "%s", _("cannot change persistent config of a transient domain")); goto endjob; } if (!(persistentDef = virDomainObjGetPersistentDef(driver->caps, vm))) goto endjob; sa_assert(persistentDef); persistentDef->running_mode = opt; ret = virDomainSaveConfig(driver->configDir, persistentDef); ret = 0; endjob: if (qemuDomainObjEndJob(driver, vm) == 0) vm = NULL; cleanup: if (vm) virDomainObjUnlock(vm); return ret; } xuanmao_001

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[libvirt-users] caps->nguests == 0?
by Zhihua Che 20 Jun '12

20 Jun '12

hi, I compiled the libvirt-0.9.10 and started the libvirtd with sudo. Unfortunately, I got an Error, saying 'virDomainDefParseXML unknown OS type hvm'. I debugged it and found in function virCapabilitiesSupportsGuestOSType, the parameter caps->nguests is 0. On the other hand, I tried start the libvirtd with common user, and creating domain with virsh, i found the caps->ngusts is 2 and had one value 'hvm', so it didn't complain the error above, instead, it complained could not load PC BIOS bios.bin. I'd say I searched a lot and people say it's caused by without loading kvm and kvm-intel module. So, I checked and it is loaded. Any tips here?

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[libvirt-users] unsupported configuration: Reboot is not supported with this QEMU binary
by Xing.x.Gao 19 Jun '12

19 Jun '12

Hello, when i use virsh to reboot a guest,it report a "unsupported configuration: Reboot is not supported with this QEMU binary" error . my libvirt version 0.9.10 and i've tried 0.9.11/12 ,the debug info is in the attachment libvirtd.log, virsh # version --daemon Compiled against library: libvir 0.9.10 Using library: libvir 0.9.10 Using API: QEMU 0.9.10 Running hypervisor: QEMU 0.14.0 Running against daemon: 0.9.10 virsh # list Id Name State ---------------------------------------------------- 6 win7 running 7 f16 running virsh # reboot f16 error: Failed to reboot domain f16 error: unsupported configuration: Reboot is not supported with this QEMU binary thanks.

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[libvirt-users] How to update the QEMU of libvirt?
by GaoYi 18 Jun '12

18 Jun '12

Hi all, I type "version" and the virsh outputs: Compiling library: libvir 0.6.3 ... Management: QEMU 0.9.1 Now I wanna update the QEMU to qemu-kvm-0.14.0. I don't know how to. Can anybody provide any help? Yi

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[libvirt-users] How to set cpu limits to xen domU in libvirt
by Tony Huang 18 Jun '12

18 Jun '12

Hello, I looked in the the documents. Looks like the <cputune> period and quota will only support qemu driver. Of for xen user, how to set the hard cpu limit? -- Tony

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Re: [libvirt-users] [Qemu-devel] How to management KVM virtual machines via libvirt?
by 陳韋任 (Wei-Ren Chen) 18 Jun '12

18 Jun '12

CC'ed to libvirt-users. On Sat, Jun 16, 2012 at 07:00:59PM +0800, GaoYi wrote: > Hi all, > > I am trying to management the VMs created by KVM commandline. However, I > found the libvirt cannot connect to the VMs or manage it from virsh. Can > anybody provide any help? > Best, Shouldn't this go to libvirt mailing list? http://libvirt.org/contact.html Regards, chenwj -- Wei-Ren Chen (陳韋任) Computer Systems Lab, Institute of Information Science, Academia Sinica, Taiwan (R.O.C.) Tel:886-2-2788-3799 #1667 Homepage: http://people.cs.nctu.edu.tw/~chenwj

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[libvirt-users] question regarding CMPIObjectPath
by Ashish Dalela 14 Jun '12

14 Jun '12

Folks, I'm a new user and I'm trying to build a standalone application using libvirt-cim (rather than use a full-fledged CIMOM). I need some help. While calling the CMPIInstanceMI->ft->enumerateInstances, I need to pass a reference to CMPIObjectPath. My application is crashing because I don't know what is the correct constructor for this. If I do ref = CMPIObjectPath () then all the FT pointers are null. Can someone please guide me on how to construct CMPIObjectPath instance before passing to enumerateInstances? Thanks much Ashish

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[libvirt-users] can not connect hypervisor using libvirt-0.9.11 on windows
by xuteng 14 Jun '12

14 Jun '12

Hi,ALL: I compiled the libvirt-0.9.11 source code with mingw on windows according to the website: https://github.com/photron/msys_setup Then I wrote a simple test case ,as below: #include <stdio.h> #include <stdlib.h> #include "libvirt/libvirt.h" int main(int argc,char **argv) { virConnectPtr conn; conn = virConnectOpen("qemu+tcp://192.168.1.6/system"); if (conn = NULL) { fprintf(stderr,"Failed to open connection to qemu+tcp://192.168.1.6/system"); return 1; } virConnectClose(conn); return 0; } When linked to the dll just compiled , it came out with error : NOTE: you should run 'diskperf -y' to enable the disk statistics libvir: RPC error : Unable to set close-on-exec flag: No such file or directory libvir: error : invalid connection pointer in virConnectClose When using gdb to debug the testcase , break the function virConnectOpen , then step ,the error info was: Program received signal ?,Unknown signal. 0x7c92e4ff in ntdll!LdrAlternateResourcesEnabled () from C:\WINDOWS.0\system32\ntdll.dll Any suggestion would be appreciated ! Best Regards! xuteng via foxmail

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[libvirt-users] Reconnection problem with a USB device
by Dale Amon 14 Jun '12

14 Jun '12

This is going to be a bit off the wall as I doubt many people are using a VM in quite the same manner as I am in this case. I have a new scanner at home, a Mustek A3USB 1200 Pro, which requires a vendor supplied version of libsane to run. That is a pain in the behind just to start with. To use that scanner requires a 32b machine with sufficiently old versions of various libraries. My primary machine, a laptop, is 64b and runs current software. So, in order to use my inexpensive large format scanner, I had to set up a 32b VM on my laptop that is running an old linux. I tunneled the USB device to it: <hostdev mode='subsystem' type='usb' managed='no'> <source> <vendor id='0x055f'/> <product id='0x040b'/> <address bus='3' device='8'/> </source> <alias name='hostdev0'/> </hostdev> That works fine... until I have to go into the office. Once I disconnected the USB go away for 10 hours and come back, it fails to re-engage. The USB seems to get grabbed up by the laptop itself instead of the VM. The only way to get it to work again is to halt the VM and do a cold boot of it. This is annoying to say the least because I lose 'state' when I boot, ie the set of windows and files open that remind me of where I left off on a project before going to work. Any suggestions how to get around this annoying issue?

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