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Re: [Xen-devel] vmcs_revision_id: do we care?

Daniel Li, le Wed 09 Jan 2008 11:13:48 -0500, a écrit :
> Based on what I've heard, both IBM and Intel have been telling people 
> this configuration is valid.  From what I was able to dig out, Intel in 
> their System Programming Guide: Virtual Machine Monitor Programming 
> Considerations, published Nov. 2007, suggested when loading a VMCS onto 
> a processor with a different vmcs_revision_id, instead of using VMPTRLD, 
> one should use VMREAD to read out each field then use VMWRITE to write 
> them back.

Which would mean quite some burden, even if valid... Buying a machine
that may require such slowdown is a no-go for me :)


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