- Devel - libvirt List Archives

[Libvir] [RFC]OpenVZ XML def
by Shuveb Hussain 22 May '07

22 May '07

Hi, I am adding OpenVZ support to Libvirt and work is progressing well. I'm able to list VM instances and I'm slowly trying to cover the basic API functions one by one. That brings us to the creation of OpenVZ based VMs. Just wanted to discuss the basic XML definition format so that I can get comments and improve if need be: <domain type='openvz'> <name>openvzdemo</name> <uuid>55a2441d-e012-40fe-a4f7-78e176015d40</uuid> <vpsid>101</vpsid> <template>vps.basic</template> <onboot>true</onboot> <os template='slackware-10.2-i386-minimal'/> <network> <hostname>openvzhost</hostname> <ip address='192.168.1.101' netmask='255.255.255.0' defgw='192.168.1.1' /> <nameserver>192.168.1.1</nameserver> <nameserver>202.56.250.5</nameserver> </network> </domain> Does this look OK? Regards, -- Shuveb Hussain. EasyVZ - OpenVZ management GUI: http://easyvz.sourceforge.net I blog at http://binarykarma.org Spread the Karma.

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[Libvir] [RFC] Life-cycle Management of the domain take2
by Saori Fukuta 22 May '07

22 May '07

Hi, I'm making a patch to provide a changing allocation dynamically and statically without keeping state at the library. And this is still uncompleted works, but I would like to hear your comments. Attached patch shows below: # virsh --help setmem NAME setmem - change memory allocation SYNOPSIS virsh setmem <domain> <kilobytes> [ --static | --dynamic ] DESCRIPTION Change the current memory allocation in the guest domain. OPTIONS <domain> domain name, id or uuid <kilobytes> number of kilobytes of memory --static static change --dynamic dynamic change First, I made upper interface. --- virsh.c ( attached file "add_option2virsh.patch ) - add 2 options as follows: --dynamic, --static - call new APIs: virDomainSetMaxMemory -> virDomainSetMaxMemoryScope virDomainSetMemory -> virDomainSetMemoryScope virDomainSetVcpus -> virDomainSetVcpusScope --- libvirt.c ( attached file "add_option2libvirt.patch ) - add 3 APIs: virDomainSetMaxMemoryScope virDomainSetMemoryScope virDomainSetVcpusScope and I will add lower driver as follows in the case of setmem. --- drivers ( attached file "add_option2driver.patch ) - xen_unified.c : add xenUnifiedDomainSetMemoryScope - xend_internal.c : add xenDaemonDomainSetMemoryScope - other : set NULL to domainSetMemoryScope I plan to achieve allocation dynamically and statically by such a way at xenDaemonDomainSetMemoryScope. 1. get configuration from the Xen Daemon using sexpr_get. 2. change the value when static option is specified, change the node of configuration using new API that I will make. when dynamic option is specified, change the allocation using xend_op 3. set configuration to the Xen Daemon using xend_op Why I did not use virDomainGetXMLDesc and virDomainDefineXML was some elements ware lost in current XML. For example, there is no "vncpasswd", "cpus", "localtime" in XML configuration with virDomainGetXMLDesc. So when I set the "vncpasswd" the "vncpasswd" will disappear after I define the XML configuration. How does this sound ? Thanks, Saori Fukuta.

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[Libvir] QEMU without KVM
by Steven W. Moyer 17 May '07

17 May '07

I'm working on getting QEMU running with libvirt and virt-manager and have thus far had no success. I chose QEMU because it didn't require CPU support for full-virtualization (I got a bit older CPUs). Now I'm at a stand-still trying to get it running. My libvirt is compiled with QEMU support, but I'm getting a "virConnectOpenReadOnly() failed error when it tries to connect the the hypervisor. A couple questions: 1) How do I start qemu as a service? I actually have 6 guests running. 2) How do I connect from libvirt to qemu? (either running or not). Could someone who's already been there give me a little libvirt/qemu tutorial? Thanks, smoyer -- Steven W. Moyer Principle Architect, Assurance Applications C-COR Solutions, LLC 60 Decibel Road State College, PA 16801 Office Phone: 814-231-4408 Front Desk: 814-238-2461 Cell Phone: 814-883-0391 Fax: 814-278-6540 E-mail: smoyer(a)c-cor.com AIM: StevenWMoyer ICQ: 349680381 Jabber: smoyer1(a)jabber.jcware.org MSN: smoyer64 Yahoo: smoyer64

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[Libvir] virsh - vcpuinfo cmd not working in 0.2.2
by Jan Michael 15 May '07

15 May '07

Cheers libvirt, I've tested the CLI virsh with my recent compiled version of libvirt and version 0.1.9. In Version 0.2.2 vcpuinfo provides wrong information. In version 0.1.9 only the values for VCPU and CPU are wrong. Do you have any idea why? See the test results below. Jan > xm vcpu-list Name ID VCPUs CPU State Time(s) CPU Affinity Domain-0 0 0 0 r-- 95463.9 any cpu Domain-0 0 1 - --p 55.6 any cpu stornode 6 0 1 -b- 2036.1 1 worknode 5 0 1 -b- 2073.9 1 > virsh vcpuinfo (0,5,6) in version 0.2.2 - Domain-0 VCPU: 0 CPU: 0 State: blocked CPU time: 0.0s CPU Affinity: -- - worknode virsh # vcpuinfo 5 VCPU: 0 CPU: 0 State: blocked CPU time: 4.3s CPU Affinity: -- - stornode VCPU: 0 CPU: 0 State: blocked CPU time: 4.3s CPU Affinity: -- > virsh vcpuinfo (0,5,6) in version 0.1.9 - Domain-0 VCPU: 0 CPU: 0 State: running CPU time: 95466.7s CPU Affinity: yy - worknode VCPU: 0 CPU: 1 State: blocked CPU time: 2074.2s CPU Affinity: -y - stornode VCPU: 0 CPU: 1 State: blocked CPU time: 2036.5s CPU Affinity: -y

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[Libvir] Remote patch 20070514
by Richard W.M. Jones 15 May '07

15 May '07

This is the current remote patch, against current CVS: http://annexia.org/tmp/libvirt-remote-20070514.patch and a patch against the previous patch so you can see what changed (not very much): http://annexia.org/tmp/libvirt-remote-20070505-to-20070514.patch My To-Do list at the moment: (a) Disable Nagle (https://www.redhat.com/archives/libvir-list/2007-May/msg00142.html) (b) Implement Mark's sensible client certificate checks (https://www.redhat.com/archives/libvir-list/2007-May/msg00152.html) (c) Update TLS certificate documentation to reflect (b). And I'm hoping with those done we may be able to apply this one? It would be great if others could test this. Rich. -- Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/ Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 03798903

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[Libvir] How libvirt handles QEMU?
by Jun Koi 14 May '07

14 May '07

Hello, I am new to libvirt, so have a question. My concern is: libvirt can manage QEMU VMs. The point is thatI QEMU doesnt not export monitor interface to outside (at least that is what I know about older version of QEMU, not sure if anything changed recently). So how can libvirt does something like: pause, resume or extract internal information about a QEMU VM? Thank you, Jun

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[Libvir] [PATCH] Remote 0/8: Plan
by Richard W.M. Jones 14 May '07

14 May '07

Below is the plan for delivering the remote patch for review in stages. More details about in each email. I only expect to get through the first two emails today. Rich. 1 Additional error handling --------------------------- M include/libvirt/virterror.h M src/virterror.c 2 Client-server protocol ------------------------ A qemud/remote_protocol.x A qemud/rpcgen_fix.pl A qemud/remote_protocol.c A qemud/remote_protocol.h 3 Client-side ------------- A src/remote_internal.c A src/remote_internal.h M src/driver.h M src/libvirt.c 4 Server-side call dispatch --------------------------- A qemud/remote.c A qemud/remote_generate_stubs.pl A qemud/remote_dispatch_localvars.h A qemud/remote_dispatch_proc_switch.h A qemud/remote_dispatch_prototypes.h 5 Client-side QEMUD modifications --------------------------------- M src/qemu_internal.c 6 Server-side QEMUD modifications --------------------------------- A qemud/protocol.x A qemud/protocol.c M qemud/protocol.h M qemud/Makefile.am M qemud/conf.c M qemud/dispatch.c M qemud/dispatch.h M qemud/internal.h M qemud/qemud.c M qemud/uuid.c 7 Documentation updates ----------------------- M docs/libvir.html M docs/remote.html 8 Build system -------------- M .cvsignore M configure.in A libvirtd.conf M src/Makefile.am A RENAMES -- Emerging Technologies, Red Hat http://et.redhat.com/~rjones/ 64 Baker Street, London, W1U 7DF Mobile: +44 7866 314 421 Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 Directors: Michael Cunningham (USA), Charlie Peters (USA) and David Owens (Ireland)

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[Libvir] gl_COMPILER_FLAGS gives an error
by Richard W.M. Jones 14 May '07

14 May '07

./configure: line 21215: syntax error near unexpected token `-fprofile-arcs' ./configure: line 21215: ` gl_COMPILER_FLAGS(-fprofile-arcs)' The only solution I can seem to find is to comment out the calls to gl_COMPILER_FLAGS in configure.in. Can't very much on Google about what gl_COMPILER_FLAGS is supposed to do. Rich. -- Emerging Technologies, Red Hat - http://et.redhat.com/~rjones/ Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 03798903

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[Libvir] PATCH: Fix uninitialized variable & bridge setup
by Daniel P. Berrange 11 May '07

11 May '07

Two crazy bugs - I forgot an =0 initialization in a recent patch to deal with qemu startup - If you don't have any virtual networks defined, then libvirt_qemud will never called brctlInit() so trying to start a guest using bridged network will get EINVAL. Dan. -- |=- Red Hat, Engineering, Emerging Technologies, Boston. +1 978 392 2496 -=| |=- Perl modules: http://search.cpan.org/~danberr/ -=| |=- Projects: http://freshmeat.net/~danielpb/ -=| |=- GnuPG: 7D3B9505 F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 -=|

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[Libvir] [PATCH] Three cleanup patches
by Richard W.M. Jones 11 May '07

11 May '07

* Add some extra generated files to .cvsignore * Remove an unused header in qemud/uuid.c * Log an error if xenHypervisorOpen fails because xenHypervisorInit has failed. Rich. -- Emerging Technologies, Red Hat http://et.redhat.com/~rjones/ 64 Baker Street, London, W1U 7DF Mobile: +44 7866 314 421 Registered Address: Red Hat UK Ltd, Amberley Place, 107-111 Peascod Street, Windsor, Berkshire, SL4 1TE, United Kingdom. Registered in England and Wales under Company Registration No. 3798903 Directors: Michael Cunningham (USA), Charlie Peters (USA) and David Owens (Ireland)

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