Dne Pá 1. července 2011 11:29:26 Jan Beulich napsal(a):
On 01.07.11 at 11:16, Petr Tesarik
wrote: Dne Pá 1. července 2011 11:04:57 Jan Beulich napsal(a): Just as we're in the process of doing for SLE11 SP2, we'd like to remove 32-bit host support in Xen (and hence kernel-xen) for 12.1. 32-bit guests will continue to be supported. Please speak up if you have reasons that should keep us from doing so. Hi Jan,
I'm afraid I don't understand it completely. What do you mean by host/guest?
There's only the Xen microkernel, all else is "guest".
I'd call it hypervisor. But beyond that there's the capability of kernel-xen to be used for Dom0 operation.
You mean the 32-bit microkernel will be discontinued?
Yes.
You mean there will be no 32-bit PV kernel any longer starting with 12.1?
No. There'll be a pv kernel, but it'll only be usable in a DomU.
You mean both 32-bit HV and (pre-12.1) 32-bit PV will continue to work?
Yes, except for the "pre-12.1" qualification (to be replaced by "non-Dom0").
So, basically, we get the following support matrix, right? hypervisor dom0 domU 32-bit * * N/A 64-bit 32-bit * N/A 64-bit 64-bit 32-bit HV supported 64-bit 64-bit 32-bit PV supported (all domU versions) 64-bit 64-bit 64-bit supported This looks reasonable. Since there's no 32-bit hypervisor, it doesn't make much sense to run a 32-bit dom0 on top of 64-bit Xen. However, since there will still be a kernel-xen (that can be used as domU), will you please make sure that it will refuse to boot rather than fail silently if somebody tries to use it as dom0 anyway? Other than that, I see no problems. Petr Tesarik -- To unsubscribe, e-mail: opensuse-kernel+unsubscribe@opensuse.org For additional commands, e-mail: opensuse-kernel+help@opensuse.org