On Thu, Jul 30, 2020 at 02:10:58PM +0200, Aleksandra Fedorova wrote: > The scenario we use for current x86 dist-git tests is based on vms: we > spin up a full vm with qemu-kvm, ssh inside it, install a package and > run the test script. I guess you could do something with virt-builder, but ... > Should it be possible to do the same with qemu-system-s390x? Maybe > even with nested virtualization, with s390x inside x86? qemu-system-s390x uses TCG to emulate instructions (so does qemu-user). qemu emulates a full System-z machine, at least enough to boot and run Linux. Nested virtualization would indicate something to do with KVM, but that is never possible when the guest arch != host arch. In the past support for both POWER and s390x has varied between what Fedora (especially the kernel) requires and what qemu can emulate. I haven't actually tried it that recently, so I'm not sure if it works right now. Generally if it boots it will usually work very reliably. But when it breaks it can be painful to try to discover what new feature is missing or what qemu command line option is required to enable/disable some machine feature to get it to work. So I guess yes, it's the way to go, and it'll often work until it doesn't and then you'll have some debugging on your hands. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-top is 'top' for virtual machines. Tiny program with many powerful monitoring features, net stats, disk stats, logging, etc. http://people.redhat.com/~rjones/virt-top _______________________________________________ devel mailing list -- devel@xxxxxxxxxxxxxxxxxxxxxxx To unsubscribe send an email to devel-leave@xxxxxxxxxxxxxxxxxxxxxxx Fedora Code of Conduct: https://docs.fedoraproject.org/en-US/project/code-of-conduct/ List Guidelines: https://fedoraproject.org/wiki/Mailing_list_guidelines List Archives: https://lists.fedoraproject.org/archives/list/devel@xxxxxxxxxxxxxxxxxxxxxxx
