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Re: Default CPU models on s390x and ppc64
From: |
Peter Maydell |
Subject: |
Re: Default CPU models on s390x and ppc64 |
Date: |
Thu, 17 Oct 2019 17:13:10 +0100 |
On Thu, 17 Oct 2019 at 17:09, David Hildenbrand <address@hidden> wrote:
> The default model under KVM is "host", under TCG it's "qemu". We should
> not use "qemu" under KVM, although it might work on some setups ...
Possibly a tangent, but on Arm the approach we used to deal
with "'-cpu host' only works for kvm" was to define a "-cpu max"
meaning "best thing you can give me", which is an alias for
-cpu host with KVM and an alias for a CPU with all the extra
features we have emulation support under TCG. Then users can
use '-cpu max' and have something that generally will DTRT
regardless of accelerator.
thanks
-- PMM
Re: Default CPU models on s390x and ppc64, Christian Borntraeger, 2019/10/18