- Devel - libvirt List Archives

FW: [Libvir] Libvirt on windows
by Gabriel Kaufmann 27 Jan '08

27 Jan '08

Hi, I'm still unable to build (see output files attached). This is from the sources I downloaded from ftp://libvirt.org/libvirt/libvirt-cvs-snapshot.tar.gz When running configure I get a popup error message that libconf-2.dll is missing. Looking at MinGW site, I found version 1.11 of libconv. Do I have to use a later version? If yes where can I find it. I'm having problem understanding which libraries and versions I should use for the compilation. Do you have a more detailed list of packages to install in MinGW. If you can send me this lis, I'll start from the beginning using a new (clean) XP installation. Can I just use the binaries compiled in https://www.redhat.com/archives/libvir-list/2008-January/msg00072.html ? I want to be able to connect to the Xen server using libvirt from Microsoft Visual Studio using c/C++. Gaby -----Original Message----- From: Richard W.M. Jones [mailto:rjones@redhat.com] Sent: Thursday, January 24, 2008 3:33 PM To: Gabriel Kaufmann; libvir-list Subject: Re: [Libvir] Libvirt on windows Of course the other thing to note is that we do have some very experimental libvirt.dll binaries available. The posting below has all the details: https://www.redhat.com/archives/libvir-list/2008-January/msg00072.html Don't let that stop you from trying to build it yourself ... 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

1 0

[Libvir] A sample program to create a Linux Container
by Dave Leskovec 26 Jan '08

26 Jan '08

Attached is a simple program that uses the clone() function to create a container. This is not intended as a patch - just an example of what creating a Linux Container looks like. Something along these lines will be used by the Linux Container driver to start the domain. The code run within this container is really simple. It just mounts the /proc file system and then dumps the ps output to a file showing that the container is in separate process space. To run this you will need to have PID namespaces support enabled. Turn on CONFIG_PID_NS when compiling the kernel. You must run the program as root or the clone() call will fail. Any questions or comments are welcome. Thanks! -- Best Regards, Dave Leskovec IBM Linux Technology Center Open Virtualization /* * Copyright IBM Corp. 2008 * * lxc_exec.c: example on creating a linux container * * Authors: * David L. Leskovec <dlesko at linux.vnet.ibm.com> * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2.1 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, write to the Free Software * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA * */ /* System includes */ #include <errno.h> #include <signal.h> #include <stdio.h> #include <stdlib.h> #include <sys/mount.h> #include <sys/types.h> #include <unistd.h> /* Supporting includes */ /* Component includes */ /* Defines */ /* These will eventually be defined in clone.h */ #define CLONE_NEWPID 0x20000000 #define CLONE_NEWNS 0x00020000 /* Global Variables */ /* Types and structs */ /* Functions */ static void exec_child() { FILE *cdfp; int rc; cdfp = fopen("/tmp/child.log", "w"); if (cdfp == NULL) { /* Log to syslog */ exit(1); } /* mount /proc */ rc = mount("lxcproc", "/proc", "proc", 0, NULL); if(0 != rc) { fprintf(cdfp, "mount failed with rc = %d and errno = %d\n", rc, errno); fflush(cdfp); exit(1); } else { fprintf(cdfp, "mount successful\n"); fflush(cdfp); } system("ps -aef > /tmp/container_ps.out"); /* sleep a bit just so we don't exit right away */ sleep(10); fclose(cdfp); } int main(int argc, char *argv[]) { FILE *dfp; int cpid; void *childstack, *stack; int flags; int stacksize = getpagesize() * 4; dfp = fopen("/tmp/parent.log", "w"); if(dfp == NULL) { perror("parent.log"); exit(1); } /* allocate a stack for the container */ stack = malloc(stacksize); if(!stack) { fprintf(dfp, "malloc() failed, %s\n", strerror(errno)); fflush(dfp); exit(1); } /* point to "top" of stack */ childstack = stack + stacksize; /* call clone to create the container */ flags = CLONE_NEWPID|CLONE_NEWNS; fprintf(dfp, "Parent: Clone() flags %lx, pagesize %d...\n", flags, getpagesize()); fflush(dfp); cpid = clone(exec_child, childstack, flags, (void *)argv); printf("cpid: %d\n", cpid); if(cpid < 0) { fprintf(dfp, "Parent: clone() failed, %s\n", strerror(errno)); fflush(dfp); exit(1); } fprintf(dfp, "Parent sleeping, 20 seconds\n"); fflush(dfp); sleep(20); return 0; }

3 7

[Libvir] [PATCH] Clarify virsh setvcpus and setmem commands
by Richard W.M. Jones 25 Jan '08

25 Jan '08

This adds a small section to the documentation for these virsh commands to clarify that you can't use them on running, fullvirt domains under Xen. 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

3 3

[Libvir] [PATCH] fix to allow usage of flags when saving XML
by Daniel Veillard 24 Jan '08

24 Jan '08

As pointed by Jay Gagnon on IRC, virDomainGetXMLDesc() was failing if the flags value was non-NULL, and looking at the source we still had a check there to fail if flags is non-zero (and we define 2 flags in virDomainXMLFlags, so this is clearly broken), 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/

3 3

Re: [Libvir] Libvirt on windows
by Richard W.M. Jones 24 Jan '08

24 Jan '08

Of course the other thing to note is that we do have some very experimental libvirt.dll binaries available. The posting below has all the details: https://www.redhat.com/archives/libvir-list/2008-January/msg00072.html Don't let that stop you from trying to build it yourself ... 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

1 0

Re: [Libvir] Libvirt on windows
by Richard W.M. Jones 24 Jan '08

24 Jan '08

There's a couple of odd things about this. Firstly: In file included from ../gnulib/lib/sys/stat.h:28, from remote_internal.c:36: ../gnulib/lib/sys/stat.h: In function 'rpl_mkdir': ../gnulib/lib/sys/stat.h:272: warning: unused parameter 'mode' In file included from remote_internal.c:61: getaddrinfo.h:38:19: error: netdb.h: No such file or directory In file included from remote_internal.c:61: getaddrinfo.h: At top level: getaddrinfo.h:199: error: redefinition of 'struct addrinfo' getaddrinfo.h:214: error: conflicting types for 'gai_strerrorA' c:\mingw\bin\../lib/gcc/mingw32/4.2.1-sjlj/../../../../include/ws2tcpip.h:309: error: previous definition of 'gai_strerrorA' was here According to ./configure, <netdb.h> header file wasn't found, as expected, but the Gnulib implementation of getaddrinfo shouldn't be trying to include it in this case. In Gnulib's getaddrinfo.h we have: #ifdef HAVE_NETDB_H # include <netdb.h> #endif But I think you're including some other <getaddrinfo.h> from somewhere else. My version of MinGW doesn't have any file called getaddrinfo.h (which is why we're using the one from Gnulib in the first place), so I suspect either you're using some later version of MinGW or else you've got MinGW & Cygwin files mixed up, or you've got some other implementation of getaddrinfo installed. Secondly: ../qemud/remote_protocol.h:509: error: expected specifier-qualifier-list before 'u_int64_t' In this file from CVS, line 509 is: typedef struct remote_domain_get_max_vcpus_args remote_domain_get_max_vcpus_args; and I don't see how this line can provoke the error. You'll need to use the versions of qemud/remote_protocol.[ch] from CVS, along with PortableXDR (see yesterday's posting) or my hacked up xdr-4.0-mingw5 library. 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

3 3

[Libvir] Libvirt on windows
by Gabriel Kaufmann 24 Jan '08

24 Jan '08

Hi, Did anybody managed to compile libvirt-0.4.0 on windows. I tried following instructions on http://libvirt.org/windows.html which offer compiling in Cygwin. This doesn't work because of inconsistency with winsock2. If I change manually the HAVE_WINSOCK2 macro and make some changes in the code (see https://www.redhat.com/archives/libvir-list/2008-January/msg00344.html ) I manage to compile but after compiling virsh doesn't work (don't manage to connect to the host and returns Bad Address immediately) Then I tried following the (not so detailed) instructions in https://www.redhat.com/archives/libvir-list/2008-January/msg00017.html I get error compilation: In file included from remote_internal.c:73: ../qemud/remote_protocol.h:1218:2: error: #endif without #if remote_internal.c: In function 'remoteDomainGetMaxMemory': remote_internal.c:1581: error: 'remote_domain_get_max_memory_ret' has no member named 'memory' remote_internal.c: In function 'remoteDomainSetMaxMemory': remote_internal.c:1591: error: 'remote_domain_set_max_memory_args' has no member named 'memory' remote_internal.c: In function 'remoteDomainSetMemory': remote_internal.c:1608: error: 'remote_domain_set_memory_args' has no member named 'memory' remote_internal.c: In function 'remoteDomainGetInfo': remote_internal.c:1634: error: 'remote_domain_get_info_ret' has no member named 'max_mem' remote_internal.c:1635: error: 'remote_domain_get_info_ret' has no member named 'memory' remote_internal.c:1636: error: 'remote_domain_get_info_ret' has no member named 'nr_virt_cpu' remote_internal.c:1637: error: 'remote_domain_get_info_ret' has no member named 'cpu_time' remote_internal.c: In function 'remoteDomainMigratePrepare': remote_internal.c:1846: error: 'remote_domain_migrate_prepare_args' has no member named 'flags' remote_internal.c:1847: error: 'remote_domain_migrate_prepare_args' has no member named 'dname' remote_internal.c:1848: error: 'remote_domain_migrate_prepare_args' has no member named 'resource' remote_internal.c: In function 'remoteDomainMigratePerform': remote_internal.c:1882: error: 'remote_domain_migrate_perform_args' has no member named 'flags' remote_internal.c:1883: error: 'remote_domain_migrate_perform_args' has no member named 'dname' remote_internal.c:1884: error: 'remote_domain_migrate_perform_args' has no member named 'resource' remote_internal.c: In function 'remoteDomainMigrateFinish': remote_internal.c:1911: error: 'remote_domain_migrate_finish_args' has no member named 'flags' make[2]: *** [libvirt_la-remote_internal.lo] Error 1 make[2]: Leaving directory `/data/cvs/libvirt/src' make[1]: *** [all-recursive] Error 1 make[1]: Leaving directory `/data/cvs/libvirt' Can anyone tell help? Best Regards, Gabriel Kaufmann Software Engineer Gabriel.Kaufmann(a)ericom.com<mailto:Gabriel.Kaufmann@ericom.com> Ericom Software Tel (Dir): +972 2 591 1700 Ext 754 Tel (Main): +972 2 591 1700 http://www.ericom.com Access Done Right Empower Enterprise-Wide Access to Microsoft(r) Terminal Server, Virtual Desktops and Legacy Applications

2 2

[Libvir] Empty <bootloader> tag?
by Kaitlin Rupert 23 Jan '08

23 Jan '08

Hello, I created a guest from XML without a <bootloader> tag. When I run dumpxml on the guest, I notice that an empty <bootloader /> tag is appended. Is this the expected behavior? This seems to differ from the behavior of other optional tags. Thanks! Log: ---------------- $ cat no_boot.xml <domain type='xen' id='-1'> <name>domU1</name> <uuid>12278656-c4c9-11dc-8852-feffffffffff</uuid> <os> <type>linux</type> <kernel>/tmp/default-xen-kernel</kernel> <initrd>/tmp/default-xen-initrd</initrd> <cmdline>TERM=xterm </cmdline> </os> <memory>131072</memory> <vcpu>1</vcpu> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <interface type='ethernet'> <target dev='vif-1.0'/> <mac address='11:22:33:aa:bb:cc'/> </interface> <disk type='file' device='disk'> <driver name='file'/> <source file='/tmp/default-xen-dimage'/> <target dev='xvda'/> </disk> </devices> </domain> $ sudo virsh define no_boot.xml Domain domU1 defined from no_boot.xml $ sudo virsh dumpxml domU1 <domain type='xen' id='-1'> <name>domU1</name> <uuid>12278656-c4c9-11dc-8852-feffffffffff</uuid> <bootloader/> <os> <type>linux</type> <kernel>/tmp/default-xen-kernel</kernel> <initrd>/tmp/default-xen-initrd</initrd> <cmdline>TERM=xterm </cmdline> </os> <memory>131072</memory> <vcpu>1</vcpu> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>destroy</on_crash> <devices> <interface type='ethernet'> <target dev='vif-1.0'/> <mac address='11:22:33:aa:bb:cc'/> </interface> <disk type='file' device='disk'> <driver name='file'/> <source file='/tmp/default-xen-dimage'/> <target dev='xvda'/> </disk> </devices> </domain> -- Kaitlin Rupert IBM Linux Technology Center kaitlin(a)linux.vnet.ibm.com

2 3

[Libvir] PATCH: Remove use of PKG_CHECK_EXISTS
by Daniel P. Berrange 23 Jan '08

23 Jan '08

This patch removes the use of PKG_CHECK_EXISTS which is only available in new versions of pkg-config. Instead we use the 3rd and 4th args of the PKG_CHECK_MODULES macro to control the if-found/not-found behaviour. This allows us to auto-disable features if they're missing, rather than aborting the configure run. This patch also updates the SASL tests to support the value 'check' for auto-enable/disable like the rest of the modules. With this applied I can successfully run the following on RHEL-4 hosts with the default RPMs installed ./autogen.sh --without-xen make make dist 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 -=|

4 11

[Libvir] Libvirt on Mac OS X 10.5
by Richard W.M. Jones 23 Jan '08

23 Jan '08

I got a little bit further with this, my current patch is attached. At the moment, it gets as far as building libvirt & virsh, but fails to build the Python bindings. However virsh doesn't run, apparently because of a simple dynamic linking problem because of where the libraries are (not yet) installed. I'm afraid that my understanding of how to build and install applications on Mac OS X ends around here. In particular I have no idea how to get the detailed abort trace that Andrew showed up in his previous email. References to portablexdr will be explained in a forthcoming email. 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

3 6