Re: [Xen-devel] [PATCh][VT] do_block upon hlt instruction

[Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>]

On 21 Sep 2005, at 18:37, Nakajima, Jun wrote:

> The major usage model of MONITOR/MWAIT is, the MONITOR instruction
> specifies the address to watch, and MWAIT waits for any modification to
> that address:
> - The current VMX does not support VMExit upon the MONITOR instrucion,
> so
>   we don't know which address the guest wants to minitor.
> - even if it did, it's not efficient to check if modification is made
>   to that address range in shadow (so that we can unblock the guest 
> from
>   MWAIT).
Hmm yes, good point. :-)

 -- Keir


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