Re: [libvirt] [Qemu-devel] [RFC PATCH 0/2] ARM: add QMP command to query GIC version

Hello! It should work with the latest kernel, at least i posted patches and all of them were applied. If nothing got broken during later rewrites. The only missing part is generic timer support. There were problems with it, however, after rewrite, they can be clearly addressed, without need for any hacks. The following patchset implements this on kernel side, but it has never been reviewed: http://www.spinics.net/lists/kvm/msg124539.html. I also have qemu support in my experimental tree and it works great, i can run "virt" guest on a Samsung's proprietary board with FrankenGIC, but since there was no interest, i never polished it up and published. IMHO it depends on what you want to achieve. If you strive for performance, then yes, of course. But, if you want to emulate some particular hardware on another hardware, then this can be the only way to do it if, for example, you have GICv3-only hardware. KVM without irqchip is still much better than TCG. But yes, i never included it into Libvirt. Once i was thinking about something like <gic version=off>, but perhaps it's not good idea because this option is not ARM-specific, it's architecture-agnostic and applicable to any KVM acceleration for IRQ controller. Whether it works or not for the given platform, it is IMHO different story. Kind regards, Pavel Fedin Senior Engineer Samsung Electronics Research center Russia