On 05/16/2012 05:59 PM, Richard W.M. Jones wrote: > No virtio at all? I've not used it, but there's a virtio-mmio module > upstream since 2011-10. If it compiles, please add it to the config, > even if it doesn't function -- I'll test it. We'll turn it on, and we'll test it. Let me take a moment to preach on something - not directed at anyone in particular :) In the ARM world, we're going to increasingly see emulation for upcoming platforms. Versatile Express is real hardware that is emulated by the qemu-system-arm process. There is a fork for A15 (40-bit PA use) hardware and there will be v8 models at some point for 64-bit. All of these emulate real, physical hardware. In the x86 world, there are two uses for qemu in particular. There is the original use of qemu as a system or process emulator, and there is the use of qemu as a backing container for the driver and IO virt. side of hardware and para-virtualization. In that case, it's not real emulation, it's just that qemu has never really been split out (yes, stuff was happening there in the kernel community) such that something not called "qemu" was seen as the virtualization IO container. All this means that when we say "qemu", the first thing most people in the Fedora - or even broader - community think of is virtualization, not system emulation. Conversely, when I say qemu in the ARM space I mean specifically emulation of a specific hardware platform. Thus, when I am talking about qemu I am thinking of "that which models a physical piece of hardware called Versatile Express", which does not do virtio, does not do PCI, and does not have many other pieces of hardware that we're getting requests to add into that model. I'm ok with considering adding them, but it won't be vexpress after we're done. It'll be "some qemu-like thing with virtio". It seems that that is what we want, and virtio will buy us lots of benefits, BUT let's be clear when we discuss these things in the ARM space that qemu does not intrinstically mean "vritualization". Otherwise we're going to get very confused/ing. Thanks - not a criticism, but something I feel needed clarifying. Jon. _______________________________________________ arm mailing list arm@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/arm
