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Last change
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Docs: bugref:10302. Uploading .dita user manual files we received from the doc team on 25th Jan.
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| 1 | <?xml version='1.0' encoding='UTF-8'?>
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| 2 | <!DOCTYPE topic PUBLIC "-//OASIS//DTD DITA Topic//EN" "topic.dtd">
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| 3 | <topic xml:lang="en-us" id="sse412passthrough">
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| 4 | <title>Passing Through SSE4.1/SSE4.2 Instructions</title>
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| 5 |
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| 6 | <body>
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| 7 | <p>
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| 8 | To provide SSE 4.1/SSE 4.2 support to guests, the host CPU has to
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| 9 | implement these instruction sets. The instruction sets are exposed
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| 10 | to guests by default, but it is possible to disable the
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| 11 | instructions for certain guests by using the following commands:
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| 12 | </p>
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| 13 | <pre xml:space="preserve">$ VBoxManage setextradata <varname>VM-name</varname> \
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| 14 | VBoxInternal/CPUM/IsaExts/SSE4.1 0
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| 15 | $ VBoxManage setextradata <varname>VM-name</varname> \
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| 16 | VBoxInternal/CPUM/IsaExts/SSE4.2 0</pre>
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| 17 | <p>
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| 18 | These are per-VM settings which are enabled by default.
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| 19 | </p>
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| 20 | </body>
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| 21 |
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| 22 | </topic>
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