xen May 2009

xen@lists.fedoraproject.org

10 participants
11 discussions

No pcifront in F10?
by Jim Lutz 25 Oct '10

25 Oct '10

I have a virtual machine landscape consisting of a CentOS 5.3 Dom0 with Xen 3.1.2, some PV CentOS DomU's with PCI passthrough (same versions), and I'm trying to implement a F10 DomU with PCI passthrough. I set everything up for the passthrough, and the F10 guest can't see any of the devices with lspci. If I boot a CentOS PV machine with the same PCI passthrough configuration, the devices show up with lspci. I've seen some posts in various places about this issue, but no solutions. How do I implement this?

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Dom0 kernels
by M A Young 13 Mar '10

13 Mar '10

I have built a new set of kernel packages based on fedora rawhide kernels and the xen/dom0/hackery branch of Jeremy's git repository ( http://git.kernel.org/?p=linux/kernel/git/jeremy/xen.git;a=summary ). This batch (kernel-2.6.29-0.114.2.6.rc6.fc11) is available via the koji build system at http://koji.fedoraproject.org/koji/taskinfo?taskID=1149500 These are really for development and debugging purposes only, as I am still having problems getting them to boot, but others have reported more success at getting kernels based on this git repository working, so you might be lucky. Note to install these packages on Fedora 10 you will need to have rpm-4.6.0-1.fc10 installed (currently in updates-testing but it should be available in updates soon) because of the change to SHA-256 file digest hashing in recent Fedora 11 builds. Michael Young

12 99

Success with Fedora 10 Xen pv_ops 2.6.29-rc8 dom0
by Pasi Kärkkäinen 27 Jul '09

27 Jul '09

Hello! I've used a lot of time trying to get my custom Xen pv_ops dom0 kernel working with virt-install and/or virt-manager on Fedora 10, and now it seems I got things working. If you want to play with this you need: 1) New enough pv_ops dom0 kernel (2.6.29-rc8 or newer) so it has /sys/hypervisor support included - Compile with CONFIG_HIGHPTE=n since it seems to be broken still 2) libvirt 0.6.1 and related packages from Fedora 10 updates-testing In addition to those I'm using Xen 3.3.1-9 packages from rawhide/F11 rebuilt for F10. With the older Fedora 10 libvirt packages libvirtd was crashing often for me, and I had some other issues with virt-install console window not opening but stalling etc.. Today I was able to run the following on Fedora 10 32bit PAE pv_ops dom0: - CentOS 5.3 32bit PAE PV domU - Fedora 10 32bit PAE PV domU - Use virt-install to install Fedora 10 32bit PAE PV domU (using custom kickstart to force PAE kernel installation to avoid the anaconda BUG which installs wrong non-PAE kernel as a default). Fedora 11 (rawhide) installation most probably works too. I'm using LVM volumes for domU disks (tap:aio is not yet supported by pv_ops dom0 kernel). Network seems to work after running "ifdown eth0 && ifup eth0" on the guest.. dunno why that's needed. That's something to figure out later:) Graphical domU console works with virt-viewer and virt-install during installation. Issues: - virt-manager complains about default network (virbr0) being inactive and asks if I want to start it. If I click Yes, then I get error: "libvirtError: cannot create bridge 'virbr0': File exists" virbr0 works just fine with virt-install. So dunno what's the problem with that.. have to look into that later. Thanks to everyone involved for helping me with this! -- Pasi

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Configuring Xen on FC10
by Samir Selman 09 Jul '09

09 Jul '09

Hi, I am working at Stanford on a research project and I have installed Fedora Core 10. Can someone help me on what are the steps to configure Xen on FC10. Thanks

5 6

debian
by mattias 01 Jun '09

01 Jun '09

Can i install debian with virt-install I meen para-virt

3 3

[Xen-devel] [ANNOUNCE] Xen 3.4.0 released!
by Pasi Kärkkäinen 18 May '09

18 May '09

----- Forwarded message from Keir Fraser <keir.fraser(a)eu.citrix.com> ----- From: Keir Fraser <keir.fraser(a)eu.citrix.com> To: "xen-devel(a)lists.xensource.com" <xen-devel(a)lists.xensource.com>, xen-users(a)lists.xensource.com Cc: Date: Mon, 18 May 2009 05:26:28 -0700 Subject: [Xen-devel] [ANNOUNCE] Xen 3.4.0 released! Folks, We're pleased to announce the official release of Xen 3.4.0! This release contains a number of important new features and updates including: - Device passthrough improvements, with particular emphasis on support for client devices (further support is available as part of the XCI project at http://xenbits.xensource.com/xenclient/) - RAS features: cpu and memory offlining - Power management - improved frequency/voltage controls and deep-sleep support. Scheduler and timers optimised for peak power savings. - Support for the Viridian (Hyper-V) enlightenment interface - Many other x86 and ia64 enhancements and fixes You can get the source using mercurial from: http://xenbits.xensource.com/xen-3.4-testing.hg A pre-prepared source tarball is available from: http://www.xen.org/download/ Cheers, Keir (on behalf of the whole Xen dev team) _______________________________________________ Xen-devel mailing list Xen-devel(a)lists.xensource.com http://lists.xensource.com/xen-devel ----- End forwarded message -----

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How to build Xen with my own Linux sources?
by Michael Crawford 15 May '09

15 May '09

I asked about this on the xen-devel list a few days ago, but no one responded. I just asked a second time, but it has been my experience that the other xen-devel subscribers just ignore pleas for help. I'm an experienced developer, and I've tried searching the list archives as well as Google. I've done my best to ask intelligent questions - but still I am *completely* stymied. What I want to do is to build the xen and linux kernels without having the xen build download the linux source tarball from kernel.org. I have used git to get the tip/master branch of Linux - that's the version of Linux that is in development from the Xen folks. I can build a working kernel from it if I only build linux itself, without trying to also build xen. What I want to do is to get xen to build, but when it wants to build the Dom0 and DomU kernels, I want it to use my tip/master branch of the Linux sources that I retrieved with git. I have seen documentation that says I should be able to do this by rolling a .tar.bz2 of the kernel source, and then setting the environment variable XEN_LINUX_SOURCE=tarball, but it simply does not work - the kernel tarball is still downloaded with wget. I am incredibly frustrated. I'm grateful for any help you can give me. Mike -- Michael David Crawford mdcrawford at gmail dot com GoingWare's Bag of Programming Tricks http://www.goingware.com/tips/

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Xen HVM Wink2k3 guest network problem
by shoom 11 May '09

11 May '09

I have a pain-staking problem with network on Win2k3 guest on IA64 host with Red Hat 5.3 - by default it uses Realtek 8139 which is not supported on Win2k3 in any way, and changing the model (model=whatever in vif=...) doesn't change anything - it always ends with *!@#! Realtek ... now, I am very tired of trying out different things (compiling Xen from src.rpm, from xensource xen-unstable.hg, trying vfirmware from xensource, different parameters in guest specification, I don't know ..) - nothing helps. Thing is that I am trying to make the proof of concept in my company for RHEL5.3 as platform for Itanium virtualization (BL380c) in order to get full support contract with Red Hat as a breakthrough ... but it seems that Microsoft always has to win, I vae tried to ring every bell available, but nothing came and now I am tired and worn out completely ... If anyone has any idea, hint, something, please tell me. shoom013(a)gmail.com -- View this message in context: http://www.nabble.com/Xen-HVM-Wink2k3-guest-network-problem-tp23475221p2347… Sent from the Fedora Xen mailing list archive at Nabble.com.

2 2

Fedora 11 (rawhide) success with Xen pv_ops dom0 kernel (2.6.30-rc3)
by Pasi Kärkkäinen 06 May '09

06 May '09

Hello! Earlier I was testing Xen pv_ops dom0 kernel with Fedora 10, and after I got it working I decided to repeat the tests with Fedora 11 (rawhide). There was problems with the latest pv_ops dom0 xen-tip/next kernel tree for a while, but those problems are now resolved, and I got my Fedora 11 testbox working, so I decided to write here about my success. My setup: - Fedora 11 (rawhide as of 2009-05-05) - Xen included in F11, no external patches (xen-3.3.1-11.fc11) - xen-tip/next pv_ops dom0 kernel as of 2009-05-06, Linux 2.6.30-rc3. - All the rest was standard stuff included in Fedora 11 aswell With this setup I'm able to run Xen paravirtual (PV) domUs, install new domUs using virt-install and also install and manage domains with virt-manager. Current limitations: - Xen HVM support is not yet working with pv_ops dom0 kernel Earlier problems with VGA text console have also been fixed, so grub menu.lst entry like this now works: title Fedora Xen pv_ops dom0-test (2.6.30-rc3-tip) root (hd0,0) kernel /xen-3.3.gz dom0_mem=1024M loglvl=all guest_loglvl=all module /vmlinuz-2.6.30-rc3-tip ro root=/dev/vg00/lv01 module /initrd-2.6.30-rc3-tip.img Or if you want to have serial console, use this: title Fedora Xen pv_ops dom0-test (2.6.30-rc3-tip) / serial console root (hd0,0) kernel /xen-3.3.gz dom0_mem=1024M loglvl=all guest_loglvl=all com1=19200,8n1 console=com1 module /vmlinuz-2.6.30-rc3-tip ro root=/dev/vg00/lv01 console=hvc0 earlyprintk=xen module /initrd-2.6.30-rc3-tip.img Hopefully someone finds this information interesting! :) -- Pasi

1 0

Problems rebuilding fedora xen-3.3.1-11.fc11.src.rpm with debug enabled
by Pasi Kärkkäinen 05 May '09

05 May '09

Hello. I'm trying to rebuild xen-3.3.1-11.fc11.src.rpm with debug enabled to be able to get more debug information from pv_ops dom0 kernels. .. and I have a problem. Has someone else seen this problem? I modified xen.spec and added "debug=y verbose=y crash_debug=y" options to "%if %{hv_build}" section to make command. Running "rpmbuild -bb xen.spec" gives this error: traps.c: Assembler messages: traps.c:1343: Error: bad register name `%sil' make[4]: *** [traps.o] Error 1 make[4]: Leaving directory `/root/rpmbuild/BUILD/xen-3.3.1/xen/arch/x86' Based on some googling it could be a gcc problem? I'm running: # rpm -qa|grep gcc gcc-gfortran-4.4.0-3.i586 libgcc-4.4.0-3.i586 gcc-c++-4.4.0-3.i586 gcc-debuginfo-4.3.2-7.i386 gcc-4.4.0-3.i586 -- Pasi

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xen May 2009