From mboxrd@z Thu Jan 1 00:00:00 1970 From: Anthony Liguori Subject: Re: [ANNOUNCE] Native Linux KVM tool Date: Sat, 02 Apr 2011 15:38:08 -0500 Message-ID: <4D978930.1000909@codemonkey.ws> References: <1301592656.586.15.camel@jaguar> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: linux-kernel@vger.kernel.org, aarcange@redhat.com, avi@redhat.com, mtosatti@redhat.com, kvm@vger.kernel.org, joro@8bytes.org, penberg@cs.helsinki.fi, asias.hejun@gmail.com, gorcunov@gmail.com, mingo@elte.hu To: Pekka Enberg Return-path: In-Reply-To: <1301592656.586.15.camel@jaguar> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org On 03/31/2011 12:30 PM, Pekka Enberg wrote: > Hi all, > > We=E2=80=99re proud to announce the native Linux KVM tool! Neat! As something of a lesson of history, I'd suggest picking a more unique=20 name while it's still a prototype :-) > The goal of this tool is to provide a clean, from-scratch, lightweigh= t > KVM host tool implementation that can boot Linux guest images (just a > hobby, won't be big and professional like QEMU) with no BIOS > dependencies and with only the minimal amount of legacy device > emulation. I see you do provide 16-bit entry points for Linux. Are you planning o= n=20 paravirtualizing this within Linux to truly eliminate the BIOS dependen= cy? Regards, Anthony Liguori > Note that this is a development prototype for the time being: there's= no > networking support and no graphics support, amongst other missing > essentials. > > It's great as a learning tool if you want to get your feet wet in > virtualization land: it's only 5 KLOC of clean C code that can alread= y > boot a guest Linux image. > > Right now it can boot a Linux image and provide you output via a seri= al > console, over the host terminal, i.e. you can use it to boot a guest > Linux image in a terminal or over ssh and log into the guest without > much guest or host side setup work needed. > > 1. To try out the tool, clone the git repository: > > git clone git://github.com/penberg/linux-kvm.git > > or alternatively, if you already have a kernel source tree: > > git checkout -b kvm/tool > git pull git://github.com/penberg/linux-kvm.git > > 2. Compile the tool: > > cd tools/kvm&& make > > 3. Download a raw userspace image: > > wget http://wiki.qemu.org/download/linux-0.2.img.bz2&& bunzip2 > linux-0.2.img.bz2 > > 4. Build a kernel with CONFIG_VIRTIO_BLK=3Dy and > CONFIG_SERIAL_8250_CONSOLE=3Dy configuration options. Note: also make= sure > you have CONFIG_EXT2_FS or CONFIG_EXT4_FS if you use the above image. > > 5. And finally, launch the hypervisor: > > ./kvm --image=3Dlinux-0.2.img --kernel=3D../../arch/x86/boot/bzIma= ge > > The tool has been written by Pekka Enberg, Cyrill Gorcunov, and Asias > He. Special thanks to Avi Kivity for his help on KVM internals and In= go > Molnar for all-around support and encouragement! > > See the following thread for original discussion for motivation of th= is > project: > > http://thread.gmane.org/gmane.linux.kernel/962051/focus=3D962620 > > Pekka > > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html