On Fri, Apr 15, 2011 at 05:32:41PM +0200, Alexander Graf wrote: > We've had support for running s390x guests with KVM for a > while now. This patch set also enables support for running > s390x guests in system as well as linux-user mode in emulation! > > Within this scope, I again want to stress that this is _not_ > supposed to replace Hercules - the s390 emulator - in any way. > The only target supported by qemu is Linux. You can only run > Linux applications with linux-user emulation and Linux guest OSs > with the system emulation. All the device logic (and 24 bit mode) > for running legacy stuff is missing. Use Hercules for those! > > I have successfully run the following guest OSs: > > - SUSE Linux Enterprise Server 11 SP1 > - Debian Lenny > > Both of which work just fine on x86_64 and ppc hosts. Other hosts > should also work. The only thing that did not work for me is network. > Somehow networking only works with KVM enabled, so there is probably > some bug involved still. > > Either way - rejoice! As with this patch set you can finally fulfill > your mainframe desires on your local workstation. And - most importantly - > finally test patches to virtio against s390! > > For images, I'm hoping for Aurelien to provide Debian images that run > in qemu. Other distributions only provide S390x target support in their > enterprise variants, keeping me from redistributing images :(. > > If you're trying to get things rolling yourself, make sure to use a > recent kernel that has support for the virtio architecture and virtio > console support - otherwise you won't see output. > > The linux user mode emulation part only support 64bit binaries, so > running Debian binaries with that one is out of question for now. Use > the system emulation mode if you really need to run Debian binaries. >
For the record, patches 03 and 04 (or their equivalent) have been merged through the linux-user tree. -- Aurelien Jarno GPG: 1024D/F1BCDB73 aurel...@aurel32.net http://www.aurel32.net
