[libvirt] [PATCH 1/3] cpuUpdate() for updating guest CPU according to host CPU

[Daniel Veillard]

On Fri, Mar 26, 2010 at 02:11:34PM +0100, Jiri Denemark wrote:
> Useful mainly for migration. cpuUpdate changes guest CPU requirements in
> the following way:
> 
> - match == "strict" || match == "exact"
>     - optional features which are supported by host CPU are changed into
>       required features
>     - optional features which are not supported by host CPU are disabled
>     - all other features remain untouched
> - match == "minimum"
>     - match is changed into "exact"
>     - optional features and all features not mentioned in guest CPU
>       specification which are supported by host CPU become required
>       features
>     - other optional features are disabled
>     - oll other features remain untouched
> 
> This ensures that no feature will suddenly disappear from the guest
> after migration.

  ACK,

Daniel

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