Xen devel - Apr 2006 - [PATCH][SVM][2/5] add guest regs callback function support

SVM patch to add guest regs callback function support.

Applies cleanly to 9622.
Please apply.

Signed-off-by: Tom Woller <thomas.woller@amd.com>


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On 12 Apr 2006, at 23:52, Woller, Thomas wrote:
> SVM patch to add guest regs callback function support.
>
> Applies cleanly to 9622.
> Please apply.
>
> Signed-off-by: Tom Woller <thomas.woller@amd.com>
Why would you want to do this? If the functions are invoked on another 
domain then it is guaranteed to be paused, and you can read out of its 
VMCB without loading the VMCB, right? I think this is one VMX artefact 
you do not need.

  -- Keir


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> Why would you want to do this? If the functions are invoked 
> on another domain then it is guaranteed to be paused, and you 
> can read out of its VMCB without loading the VMCB, right? I 
> think this is one VMX artefact you do not need.
Agreed that "Guaranteed to be paused" is a correct statement, we can
just access the vmcb directly without any loading, and we do not have to
load up the MSR_K8_VM_HSAVE_PA MSR with the host save area phys address
in this case. 
Do not apply patch.  There is a small bit of cleanup of unused code in
the patch, I''ll send cleanup in separate patch later.
Thanks
Tom


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