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paravirtualization on a T7200

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	paravirtualization on a T7200 by Javier Carnero Iglesias :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message Some parts of this message have been removed. Learn more about Nabble's security policy. Hi guys, I have a Dell Inspiron 9400 laptop with an Intel T7200. I have VT enabled in the BIOS, but virt-manager only allows me to do fully virtualized machines. Does anyone knows why "paravirtualized" option is disabled for me on virt-manager? I've some days working on it and i'm totaly lost, any help appreciated, thanks! _______________________________________________ et-mgmt-tools mailing list et-mgmt-tools@... https://www.redhat.com/mailman/listinfo/et-mgmt-tools
	Re: paravirtualization on a T7200 by Cole Robinson :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message Javier Carnero Iglesias wrote: > Hi guys, I have a Dell Inspiron 9400 laptop with an Intel T7200. I have VT > enabled in the BIOS, but virt-manager only allows me to do fully virtualized > machines. > FYI, 'fully virtualized' is what VT allows you to use. > Does anyone knows why "paravirtualized" option is disabled for me on > virt-manager? > > I've some days working on it and i'm totaly lost, any help appreciated, > thanks! What distro and hypervisor are you using? (basically, xen or kvm). If you are using kvm, true paravirtualization isn't a valid option, so just choose fully virt. Paravirt, in the sense that we represent it, only applies to xen. Yes, the UI is confusing in this respect, but all that is slated to change "real soon now". If you are using xen, please provide: uname -a virsh capabilities Thanks, Cole _______________________________________________ et-mgmt-tools mailing list et-mgmt-tools@... https://www.redhat.com/mailman/listinfo/et-mgmt-tools
	Re: paravirtualization on a T7200 by Javier Carnero Iglesias :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message I'm using kvm in Ubuntu Intrepid x86_64, and I thought kvm could do paravirtualization. So I'll try xen while I'm waiting for a new release of kvm with paravirtualization support. Thanks a lot Cole, you answered my questions! I'm using kvm so I guess that's the problem, then I'll try Xen soon. 2009/1/23 Cole Robinson <crobinso@...> Javier Carnero Iglesias wrote: > Hi guys, I have a Dell Inspiron 9400 laptop with an Intel T7200. I have VT > enabled in the BIOS, but virt-manager only allows me to do fully virtualized > machines. > FYI, 'fully virtualized' is what VT allows you to use. > Does anyone knows why "paravirtualized" option is disabled for me on > virt-manager? > > I've some days working on it and i'm totaly lost, any help appreciated, > thanks! What distro and hypervisor are you using? (basically, xen or kvm). If you are using kvm, true paravirtualization isn't a valid option, so just choose fully virt. Paravirt, in the sense that we represent it, only applies to xen. Yes, the UI is confusing in this respect, but all that is slated to change "real soon now". If you are using xen, please provide: uname -a virsh capabilities Thanks, Cole _______________________________________________ et-mgmt-tools mailing list et-mgmt-tools@... https://www.redhat.com/mailman/listinfo/et-mgmt-tools
	Re: paravirtualization on a T7200 by Stephan-29 :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message On Sat, 24 Jan 2009 12:31:21 +0100, Javier Carnero Iglesias <emepetres@...> wrote: > I'm using kvm in Ubuntu Intrepid x86_64, and I thought kvm could do > paravirtualization. So I'll try xen while I'm waiting for a new release of > kvm with paravirtualization support. If you are on Ubuntu (as I am), the Ubuntu vm builder will give you a virtual machine with a really cut down OS and a special kernel, so virtualisation isn't that important (for me anyway) - https://help.ubuntu.com/8.04/serverguide/C/ubuntu-vm-builder.html You can also use a special network driver for the guest, "virtio" - http://www.ubuntu.com/products/whatisubuntu/serveredition/technologies/virtualization _______________________________________________ et-mgmt-tools mailing list et-mgmt-tools@... https://www.redhat.com/mailman/listinfo/et-mgmt-tools
	Re: paravirtualization on a T7200 by Cole Robinson :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message Javier Carnero Iglesias wrote: > I'm using kvm in Ubuntu Intrepid x86_64, and I thought kvm could do > paravirtualization. So I'll try xen while I'm waiting for a new release > of kvm with paravirtualization support. > Well, I said kvm doesn't offer 'full' paravirtualization like xen, and it never will. kvm does offer paravirtualized drivers (virtio) for disk and network devices, which give performance that's more than enough for most peoples needs. I don't think Intrepid has the packages needed to run as a xen host, so your easiest bet is to use kvm. Try a google search for 'ubuntu virtio' and I'm sure you can find some specific intructions on how to get it all working. - Cole _______________________________________________ et-mgmt-tools mailing list et-mgmt-tools@... https://www.redhat.com/mailman/listinfo/et-mgmt-tools
	Re: paravirtualization on a T7200 by Mark McLoughlin :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message On Sat, 2009-01-24 at 12:31 +0100, Javier Carnero Iglesias wrote: > I'm using kvm in Ubuntu Intrepid x86_64, and I thought kvm could do > paravirtualization. So I'll try xen while I'm waiting for a new > release of kvm with paravirtualization support. Para-virtualization isn't always better. KVM uses full virtualization, meaning that it uses the processor's support for virtualization. This means you can run an unmodified guest OS on KVM. If you can modify the guest OS, then KVM does allow you to use paravirtualization for some performance sensitive operations - so e.g. we've got pvclock, pv MMU and virtio devices. Don't get tied up in marketing terminology - try both and decide for yourself which works best for you. Cheers, Mark. _______________________________________________ et-mgmt-tools mailing list et-mgmt-tools@... https://www.redhat.com/mailman/listinfo/et-mgmt-tools
	Re: paravirtualization on a T7200 by Javier Carnero Iglesias :: Rate this Message: Reply to Author \| View Threaded \| Show Only this Message I tried to install xen on ubuntu but it breaks my graphics driver. So I'll come back with kvm and virtio-guest drivers. Anyway kvm works pretty good for me so I think it's the best choice. Thanks very much for your help, now I have a little more idea on how kvm and xen works. 2009/1/26 Mark McLoughlin <markmc@...> On Sat, 2009-01-24 at 12:31 +0100, Javier Carnero Iglesias wrote: > I'm using kvm in Ubuntu Intrepid x86_64, and I thought kvm could do > paravirtualization. So I'll try xen while I'm waiting for a new > release of kvm with paravirtualization support. Para-virtualization isn't always better. KVM uses full virtualization, meaning that it uses the processor's support for virtualization. This means you can run an unmodified guest OS on KVM. If you can modify the guest OS, then KVM does allow you to use paravirtualization for some performance sensitive operations - so e.g. we've got pvclock, pv MMU and virtio devices. Don't get tied up in marketing terminology - try both and decide for yourself which works best for you. Cheers, Mark. _______________________________________________ et-mgmt-tools mailing list et-mgmt-tools@... https://www.redhat.com/mailman/listinfo/et-mgmt-tools _______________________________________________ et-mgmt-tools mailing list et-mgmt-tools@... https://www.redhat.com/mailman/listinfo/et-mgmt-tools