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    SubjectRe: [PATCH] [19/50] Experimental: detect if SVM is disabled by BIOS
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    On Saturday 22 September 2007 11:17:08 Joerg Roedel wrote:
    > I don't think we need this patch. When SVM is disabled KVM will tell on
    > module load.

    The point is that people often want to know in advance (before they
    even try to use KVM or Xen) if their CPU and BIOS supports this.

    > Further with SVM-lock it will be possible to re-enable SVM
    > even if it was disabled by BIOS using a key. In this case the user of
    > SVM has to clear the capability bit you set in this patch for all cpus.

    Not sure I follow you. Can you clarify? What exactly needs to be
    done to do a full non reversible lock?

    -Andi

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