Re: [Lguest] powerpc64 port anyone?
On 22.04.2009, at 23:41, Hollis Blanchard wrote: On Thu, 2009-04-23 at 01:19 +0400, Wartan Hachaturow wrote: On Wed, Apr 22, 2009 at 7:41 PM, Hollis Blanchard holl...@us.ibm.com wrote: KVM supports embedded PowerPC (440 and e500 at the moment), and there has been some work to port it to ppc64 cores like 970 (without using the hardware extensions, since these are unavailable on shipping systems). If you're interested, you should check out the trees at http://powerkvm.org . Wow, didn't know about that port. I'll have a look. The main port was PowerPC 440, and that and e500 support are already upstream in KVM. Some details are available here: http://www.linux-kvm.org/page/PowerPC The 970/Cell stuff Alex is doing is only loosely connected to that (ppc64 supervisor mode is very different from 440/e500), and that's the first URL I gave you. Actually my 970 stuff virtualizes ppc32 on ppc64, so we don't have to mess with conflicting kernel address rooms. The architecture as is however should allow you to easily add ppc32 host support as well as ppc64 guest support, as long as you prevent the memory segments to collide (BAT for ppc32, 0xc/0xd SLB entries for ppc64). So I for my part would welcome any help I can get to have KVM run smoothly on non-embedded POWER :-). Alex -- To unsubscribe from this list: send the line unsubscribe kvm-ppc in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [Lguest] powerpc64 port anyone?
On Wed, 2009-04-22 at 18:03 +0400, Wartan Hachaturow wrote: On 4/22/09, Rusty Russell ru...@rustcorp.com.au wrote: Well, I think the x86_64 port is dead; nothing has been done on it in over a year. POWER could be done, but you'd have to know a lot about POWER (or learn a lot about POWER). As far as I understand, major issues would be to make lguest 64-bit, and invent a POWER replacement for your creative use of i386 segmentation. I need to refresh my memories on power memory management :) Probably, a powerpc32 would be easier for a start -- and benefit those lacking PowerVM :) Probably easier, yeah. It looks like powerpc is currently missing any kind of software virtualization: kvm is x86, XenPPC seems to be dead, and so is OpenVZ's powerpc port. KVM supports embedded PowerPC (440 and e500 at the moment), and there has been some work to port it to ppc64 cores like 970 (without using the hardware extensions, since these are unavailable on shipping systems). If you're interested, you should check out the trees at http://powerkvm.org . What hardware do you have available? Qemu has made great progress in PowerPC target support in the last 6 months, and that can be very convenient even when you have real hardware. -- Hollis Blanchard IBM Linux Technology Center -- To unsubscribe from this list: send the line unsubscribe kvm-ppc in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: [Lguest] powerpc64 port anyone?
On Wed, Apr 22, 2009 at 7:41 PM, Hollis Blanchard holl...@us.ibm.com wrote: KVM supports embedded PowerPC (440 and e500 at the moment), and there has been some work to port it to ppc64 cores like 970 (without using the hardware extensions, since these are unavailable on shipping systems). If you're interested, you should check out the trees at http://powerkvm.org . Wow, didn't know about that port. I'll have a look. Do I understand right that, all other things being equal, lguest should be easier to port than full KVM? What hardware do you have available? G5, p5, QS22, JS22, lots of PS3's. No ppc32, though, but that should be quite easy to get. -- Regards, Wartan. -- To unsubscribe from this list: send the line unsubscribe kvm-ppc in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
