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    SubjectRe: [PATCH] kvm: fix cpuid eax
    On 04/30/2012 01:37 PM, Anthony Liguori wrote:
    > On 04/30/2012 09:39 AM, Michael S. Tsirkin wrote:
    >> cpuid eax should return the max leaf so that
    >> guests can find out the valid range.
    >> This matches Xen et al.
    >
    > What KVM does here predates Xen and Hyper-V.
    >
    > This is an ABI breaker.
    >

    What Intel and AMD have done here predates KVM...

    What exactly relies on a zero here?

    -hpa



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