Re: [Qemu-devel] should KVM or userspace be the one which decides what MIPIDR/affinity values to assign to vcpus?

[Peter Maydell]

On 25 June 2015 at 13:41, Christoffer Dall <address@hidden> wrote:
> On Thu, Jun 25, 2015 at 10:06:20AM +0100, Peter Maydell wrote:
>> I agree it's not very likely anybody cares about the specific cluster
>> topology. However if we don't want to support arbitrary topologies
>> then QEMU is going to end up in the business of editing the user
>> supplied device tree blob to make its cpu definitions match up with
>> whatever the kernel provides, which could be pretty tedious.
>>
> I see, then you can't easily contruct a machine and a DT in one go
> before talking to KVM.

Also the "use upstream's kernel and its associated dtb with a
model that matches real hardware" use case would require either
DTB editing or getting the kernel to handle the topology of
the thing we're modelling.

-- PMM