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Re: [Qemu-devel] [PATCH RFC] i386: expose "TCGTCGTCGTCG" in the 0x400000
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From: |
Paolo Bonzini |
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Subject: |
Re: [Qemu-devel] [PATCH RFC] i386: expose "TCGTCGTCGTCG" in the 0x40000000 CPUID leaf |
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Date: |
Fri, 5 May 2017 09:45:48 +0200 |
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User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.0 |
On 04/05/2017 20:42, Eduardo Habkost wrote:
>
>> NB2, for KVM, we added a flag for '-cpu kvm=off' to let you
>> hide the KVMKVMKVM signature from guests. Presumably we should
>> add a 'tcg=off' flag for the same reason ?
> I don't like "kvm=off" because it sounds like it disables KVM
> completely. "tcg=off" would be misleading as well.
>
> What about a generic "hypervisor-cpuid=off" property?
Yeah, it should also disable the CPUID_EXT_HYPERVISOR feature, in fact.
Paolo