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Re: [Qemu-devel] should KVM or userspace be the one which decides what M
From: |
Christoffer Dall |
Subject: |
Re: [Qemu-devel] should KVM or userspace be the one which decides what MIPIDR/affinity values to assign to vcpus? |
Date: |
Thu, 25 Jun 2015 14:41:13 +0200 |
User-agent: |
Mutt/1.5.21 (2010-09-15) |
On Thu, Jun 25, 2015 at 10:06:20AM +0100, Peter Maydell wrote:
> On 25 June 2015 at 09:00, Christoffer Dall <address@hidden> wrote:
> > Of course, KVM can deny an unsupported configuration, but I am wondering
> > if we really think anybody will care about the 'model such specific
> > hardware' aspect with KVM, or if we should only consider the 'I want a
> > VM with x VCPUs' scenario, in which case the second option below seems
> > simpler to me.
>
> 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.
Oh well, I don't feel strongly one way or the other.
-Christoffer
- Re: [Qemu-devel] should KVM or userspace be the one which decides what MIPIDR/affinity values to assign to vcpus?, (continued)
- Re: [Qemu-devel] should KVM or userspace be the one which decides what MIPIDR/affinity values to assign to vcpus?, Marc Zyngier, 2015/06/09
- Re: [Qemu-devel] should KVM or userspace be the one which decides what MIPIDR/affinity values to assign to vcpus?, Peter Maydell, 2015/06/09
- Re: [Qemu-devel] should KVM or userspace be the one which decides what MIPIDR/affinity values to assign to vcpus?, Marc Zyngier, 2015/06/09
- Re: [Qemu-devel] should KVM or userspace be the one which decides what MIPIDR/affinity values to assign to vcpus?, Peter Maydell, 2015/06/09
- Re: [Qemu-devel] should KVM or userspace be the one which decides what MIPIDR/affinity values to assign to vcpus?, Marc Zyngier, 2015/06/09
- Re: [Qemu-devel] should KVM or userspace be the one which decides what MIPIDR/affinity values to assign to vcpus?, Igor Mammedov, 2015/06/10
- Re: [Qemu-devel] should KVM or userspace be the one which decides what MIPIDR/affinity values to assign to vcpus?, Marc Zyngier, 2015/06/10
- Re: [Qemu-devel] should KVM or userspace be the one which decides what MIPIDR/affinity values to assign to vcpus?, Radim, 2015/06/10
- Re: [Qemu-devel] should KVM or userspace be the one which decides what MIPIDR/affinity values to assign to vcpus?, Christoffer Dall, 2015/06/25
- Re: [Qemu-devel] should KVM or userspace be the one which decides what MIPIDR/affinity values to assign to vcpus?, Peter Maydell, 2015/06/25
- Re: [Qemu-devel] should KVM or userspace be the one which decides what MIPIDR/affinity values to assign to vcpus?,
Christoffer Dall <=
- Re: [Qemu-devel] should KVM or userspace be the one which decides what MIPIDR/affinity values to assign to vcpus?, Peter Maydell, 2015/06/25