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From: | Avi Kivity |
Subject: | Re: [Qemu-devel] cpuid problem in upstream qemu with kvm |
Date: | Sun, 20 Dec 2009 17:59:33 +0200 |
User-agent: | Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.5) Gecko/20091209 Fedora/3.0-4.fc12 Thunderbird/3.0 |
On 12/20/2009 05:51 PM, Michael S. Tsirkin wrote:
Maybe we should make -cpu host the default. That will give the best performance for casual users, more testing for newer features, and will force management apps to treat migration much more seriously. The downside is that casual users upgrading their machines might experience issues with Windows. Feature compatibility is not just about migration.This seems very aggressive. Can't we whitelist features that we know about? Further, doesn't KVM already do this?
It does, but without -cpuid host you're stuck with qemu64 (kvm.ko doesn't add features userspace didn't request).
-- error compiling committee.c: too many arguments to function
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