December 2007 - Devel - libvirt List Archives

[Libvir] PATCH: Add dep on 'nc' RPM
by Daniel P. Berrange 18 Dec '07

18 Dec '07

The libvirt SSH tunnelling support requires 'nc' to operate. The libvirt RPM does not, however, have any dependancy on 'nc'. So by default it is pure luck whether you can use SSH tunnelling after installing the libvirt package & starting the daemon. Even though we don't technically need it on the client end, I figure nc is so small we may as well add a dep to the main libvirt RPM. This ensures nc is present anywhere the daemon is. 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: Compatability with Xen 3.2.0
by Daniel P. Berrange 18 Dec '07

18 Dec '07

In Xen 3.2.0 the physinfo hypercall was changed to remove the field 'sockets_per_node' and add in 'nr_cpus'. We use the sockets_per_node field in livirt for the virNodeInfo struct :-( This patch re-calculates its value in terms of 'nr_cpus / (nodes*cores*threads)' which is how older Xen used to figure it out. 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] Release of libvirt-0.4.0
by Daniel Veillard 18 Dec '07

18 Dec '07

A new release is available from ftp://libvirt.org/libvirt/ We ddin;t had a release since the end of September and the logs below shows it, in retrospect I should have done an intermediate release around mid November. There is so much new code that it makes sense to bump the minor version: * New features: - Compilation on Windows cygwin/mingw (Richard Jones) - Ruby bindings (David Lutterkort) - SASL based authentication for libvirt remote support (Daniel Berrange) - PolicyKit authentication (Daniel Berrange) * Documentation: - example files for QEMU and libvirtd configuations (Daniel Berrange) - english cleanups (Jim Paris) - CIM and OpenVZ references - document <shareable/> - daemon startup when using QEMU/KVM - document HV support for new NUMA calls (Richard Jones) - various english fixes (Bruce Montague) - OCaml docs links (Richard Jones) - describe the various bindings add Ruby link - Windows support page (Richard Jones) - authentication documentation updates (Daniel Berrange) * Bug fixes: - NUMA topology error handling (Beth Kon) - NUMA topology cells without CPU (Beth Kon) - XML to/from XM bridge config (Daniel Berrange) - XM processing of vnc parameters (Daniel Berrange) - Reset migration source after failure (Jim Paris) - negative integer in config (Tatsuro Enokura) - zero terminating string buffer - detect integer overflow (Jim Meyering) - QEmu command line ending fixes (Daniel Berrange) - recursion problem in the daemon (Daniel Berrange) - HVM domain with CDRom (Masayuki Sunou) - off by one error in NUMA cpu count (Beth Kon) - avoid xend errors when adding disks (Masayuki Sunou) - compile error (Chris Lalancette) - transposed fwrite args (Jim Meyering) - compile without xen and on solaris (Jim Paris) - parsing of interface names (Richard Jones) - overflow for starts on 32bits (Daniel Berrange) - fix problems in error reporting (Saori Fukuta) - wrong call to brSetForwardDelay changed to brSetEnableSTP (Richard Jones) - allow shareable disk in old Xen - fix wrong certificate file (Jim Meyering) - avoid some startup error when non-root - off-by-1 buffer NULL termination (Daniel Berrange) - various string allocation fixes (Daniel Berrange) - avoid problems with vnetXXX interfaces in domain dumps (Daniel Berrange) - build fixes for RHEL (Daniel Berrange) - virsh prompt should not depend on uid (Richard Jones) - fix scaping of '<' (Richard Jones) - fix detach-disk on Xen tap devices (Saori Fukuta) - CPU parameter setting in XM config (Saori Fukuta) - credential handling fixes (Daniel Berrange) - fix compatibility with Xen 3.2.0 (Daniel Berrange) * Improvements: - /etc/libvirt/qemu.conf configuration for QEMU driver (Daniel Berrange) - NUMA cpu pinning in config files (DV and Saori Fukuta) - CDRom media change in KVM/QEMU (Daniel Berrange) - tests for <shareable/> in configs - pinning inactive domains for Xen 3.0.3 (Saori Fukuta) - use gnulib for portability enhancement (Jim Meyering) - --without-libvirtd config option (Richard Jones) - Python bindings for NUMA - add extra utility functions to buffer (Richard Jones) - separate qparams module for handling query parameters (Richard Jones) * Code cleanups: - remove virDomainRestart from API as it was never used (Richard Jones) - constify params for attach/detach APIs (Daniel Berrange) - gcc printf attribute checkings (Jim Meyering) - refactoring of device parsing code and shell escaping (Daniel Berrange) - virsh schedinfo parameters validation (Masayuki Sunou) - Avoid risk of format string abuse (Jim Meyering) - integer parsing cleanups (Jim Meyering) - build out of the source tree (Jim Meyering) - URI parsing refactoring (Richard Jones) - failed strdup/malloc handling (Jim Meyering) - Make "make distcheck" work (Jim Meyering) - improve xen internall error reports (Richard Jones) - cleanup of the daemon remote code (Daniel Berrange) - rename error VIR_FROM_LINUX to VIR_FROM_STATS_LINUX (Richard Jones) - don't compile the proxy if without Xen (Richard Jones) - fix paths when configuring for /usr prefix - improve error reporting code (Jim Meyering) - detect heap allocation failure (Jim Meyering) - disable xen sexpr parsing code if Xen is disabled (Daniel Berrange) - cleanup of the GetType entry point for Xen drivers - move some QEmu path handling to generic module (Daniel Berrange) - many code cleanups related to the Windows port (Richard Jones) - disable the proxy if using PolicyKit (Daniel Berrange) - readline availability detection - test libvirtd's config-processing code (Jim Meyering) - use a variable name as sizeof argument (Jim Meyering) Thanks to everybody who helped for this release, by providing feedback, documentation, patches, etc. ! Daniel -- Red Hat Virtualization group http://redhat.com/virtualization/ Daniel Veillard | virtualization library http://libvirt.org/ veillard(a)redhat.com | libxml GNOME XML XSLT toolkit http://xmlsoft.org/ http://veillard.com/ | Rpmfind RPM search engine http://rpmfind.net/

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[Libvir] [PATCH] Enhance virBuffer code
by Richard W.M. Jones 17 Dec '07

17 Dec '07

Apart from a couple of minor fixes, this adds the following useful functions to the virBuffer implementation: virBufferAddChar: Append a single character to the buffer. virBufferURIEncodeString: Append a %-encoded string to the buffer (eg. virBufferEscapeString and the similar function in libxml2). 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] More queries
by Katti, Vadiraj (STSD-Openview) 17 Dec '07

17 Dec '07

Hi, I've more quries on libvirt apis: 1. Is there any API in libvirt that gives me the uptime of the guets. 2. Can I know how many physical CPUs are dedicated to a VM or if they are shared. 3. How do I know the logical cpu consumption of the guests( from dom0 using libvirt obviously). 4. Can get the ip address of each of the guests with any of the APIs Thanks, Vadiraj

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[Libvir] [PATCH] 0/2 Factor out query parsing from remote
by Richard W.M. Jones 15 Dec '07

15 Dec '07

We need to do query string assembly and parsing for the Amazon EC2 backend. These two patches factor out this code from inside remote_internal.c into a separate utility file. 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 the cpus parameter setting of xenXMParseXMLToConfig
by Saori Fukuta 14 Dec '07

14 Dec '07

I think there is a unnecessary code for setting cpus parameter at xenXMParseXMLToConfig, since the cpus parameter is already set on the upper code. Because of this, converted cpus string will not be used. So, can I remove it ? Regards, Saori Fukuta

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[Libvir] [PATCH] Fix detach-disk command for tap device
by Saori Fukuta 14 Dec '07

14 Dec '07

The detach-disk command does not work for tap device, since xenStoreDomainGetDiskID is always searching for vbd device from XenStore. c.f. This is a the related patch: http://git.et.redhat.com/?p=libvirt.git;a=commit;h=d27506d3a36e12b977f6a896… So, I changed the searching path to both vbd and tap. Regards, Saori Fukuta

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[Libvir] Disks and NICs
by Katti, Vadiraj (STSD-Openview) 13 Dec '07

13 Dec '07

Hi, Libvirt provides the disk and Network interfaces statistics for each of the guests configured. Is there a api which tells me how many disk and network interface are configured per guest so that can make the corrosponding calls to get the statistics of each the disk/nic (like virDomainBlockStats and virDomainInterfaceStats). Thanks, Vadiraj

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[Libvir] [PATCH] Fix escaping of '<' in virBufferEscapeString
by Richard W.M. Jones 12 Dec '07

12 Dec '07

< is currently escaped as &ll; I'm guessing it should be < These are the places where this function is used: src/xend_internal.c: virBufferEscapeString(buf, " <cmdline>%s</cmdline>\n", tmp); src/xend_internal.c: virBufferEscapeString(&buf, " <bootloader_args>%s</bootloader_args>\n", tmp); src/xm_internal.c: virBufferEscapeString(buf, " <bootloader_args>%s</bootloader_args>\n", str); src/xm_internal.c: virBufferEscapeString(buf, " <cmdline>%s</cmdline>\n", str); 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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